From f8f9a78abb425457e2bcb04c98cabef341884a50 Mon Sep 17 00:00:00 2001 From: Tomas Chmelevskij Date: Wed, 20 Dec 2023 20:41:25 +0100 Subject: [PATCH] Feat/npm ol (#3683) feat: use `npm` version of open layers map --- gulpfile.js | 6 +- libraries/openlayers/ol.css | 2 - libraries/openlayers/ol.css.map | 1 - libraries/openlayers/ol.js | 8 -- libraries/openlayers/ol.js.map | 1 - package.json | 17 +---- src/css/tabs/gps.less | 8 ++ src/js/tabs/gps.js | 49 ++++++------ src/js/tabs/map.js | 100 +++++++++---------------- src/tabs/gps.html | 2 +- src/tabs/map.html | 23 ------ yarn.lock | 127 +++++++++++++++++++++++++++++++- 12 files changed, 198 insertions(+), 146 deletions(-) delete mode 100644 libraries/openlayers/ol.css delete mode 100644 libraries/openlayers/ol.css.map delete mode 100644 libraries/openlayers/ol.js delete mode 100644 libraries/openlayers/ol.js.map delete mode 100644 src/tabs/map.html diff --git a/gulpfile.js b/gulpfile.js index 1ee39d3019..71a16b173e 100644 --- a/gulpfile.js +++ b/gulpfile.js @@ -369,8 +369,10 @@ function dist_src() { } function dist_node_modules_css() { - return gulp.src('./**/*.min.css') - .pipe(gulp.dest(DIST_DIR)); + return gulp.src([ + './**/*.min.css', + './node_modules/ol/ol.css', + ], { base: 'node_modules' }).pipe(gulp.dest(`${DIST_DIR}node_modules/`)); } function dist_less() { diff --git a/libraries/openlayers/ol.css b/libraries/openlayers/ol.css deleted file mode 100644 index b798e8f5cf..0000000000 --- a/libraries/openlayers/ol.css +++ /dev/null @@ -1,2 +0,0 @@ -.ol-box{box-sizing:border-box;border-radius:2px;border:2px solid #00f}.ol-mouse-position{top:8px;right:8px;position:absolute}.ol-scale-line{background:rgba(0,60,136,.3);border-radius:4px;bottom:8px;left:8px;padding:2px;position:absolute}.ol-scale-line-inner{border:1px solid 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.5em;font-size:.7rem;line-height:1.375em;color:#000;text-shadow:0 0 2px #fff}.ol-attribution li{display:inline;list-style:none;line-height:inherit}.ol-attribution li:not(:last-child):after{content:" "}.ol-attribution img{max-height:2em;max-width:inherit;vertical-align:middle}.ol-attribution button,.ol-attribution ul{display:inline-block}.ol-attribution.ol-collapsed ul{display:none}.ol-attribution:not(.ol-collapsed){background:rgba(255,255,255,.8)}.ol-attribution.ol-uncollapsible{bottom:0;right:0;border-radius:4px 0 0;height:1.1em;line-height:1em}.ol-attribution.ol-uncollapsible img{margin-top:-.2em;max-height:1.6em}.ol-attribution.ol-uncollapsible button{display:none}.ol-zoomslider{top:4.5em;left:.5em;height:200px}.ol-zoomslider button{position:relative;height:10px}.ol-touch .ol-zoomslider{top:5.5em}.ol-overviewmap{left:.5em;bottom:.5em}.ol-overviewmap.ol-uncollapsible{bottom:0;left:0;border-radius:0 4px 0 0}.ol-overviewmap .ol-overviewmap-map,.ol-overviewmap 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r,n=t.getFlatCoordinates(),o=Math.max(e[1],n[1]),s=Math.min(e[3],n[n.length-1]),a=kt(e[1]+Math.abs(e[1]-e[3])*this.lonLabelPosition_,o,s),h=[n[0],a];return i in this.meridiansLabels_?(r=this.meridiansLabels_[i].geom).setCoordinates(h):r=new ci(h),r},Lr.prototype.addParallel_=function(t,e,i,r,n,o){var s=this.getParallel_(t,e,i,r,o);if(Pt(s.getExtent(),n)){if(this.parallelsLabels_){var a=this.getParallelPoint_(s,n,o);this.parallelsLabels_[o]={geom:a,text:this.latLabelFormatter_(t)}}this.parallels_[o++]=s}return o},Lr.prototype.getParallelPoint_=function(t,e,i){var r,n=t.getFlatCoordinates(),o=Math.max(e[0],n[0]),s=Math.min(e[2],n[n.length-2]),a=[kt(e[0]+Math.abs(e[0]-e[2])*this.latLabelPosition_,o,s),n[1]];return i in this.parallelsLabels_?(r=this.parallelsLabels_[i].geom).setCoordinates(a):r=new ci(a),r},Lr.prototype.createGraticule_=function(t,e,i,r){var n=this.getInterval_(i);if(-1==n)return this.meridians_.length=this.parallels_.length=0,this.meridiansLabels_&&(this.meridiansLabels_.length=0),void(this.parallelsLabels_&&(this.parallelsLabels_.length=0));var o,s,a,h,l=this.toLonLatTransform_(e),u=l[0],p=l[1],c=this.maxLines_,d=[Math.max(t[0],this.minLonP_),Math.max(t[1],this.minLatP_),Math.min(t[2],this.maxLonP_),Math.min(t[3],this.maxLatP_)],f=(d=be(d,this.projection_,"EPSG:4326"))[3],_=d[2],g=d[1],y=d[0];for(h=kt(u=Math.floor(u/n)*n,this.minLon_,this.maxLon_),s=this.addMeridian_(h,g,f,r,t,0),o=0;h!=this.minLon_&&o++0&&this.points_[i+2]>t;)i-=3;var r=this.points_[e+2]-this.points_[i+2];if(r<1e3/60)return!1;var n=this.points_[e]-this.points_[i],o=this.points_[e+1]-this.points_[i+1];return this.angle_=Math.atan2(o,n),this.initialVelocity_=Math.sqrt(n*n+o*o)/r,this.initialVelocity_>this.minVelocity_},Pr.prototype.getDistance=function(){return(this.minVelocity_-this.initialVelocity_)/this.decay_},Pr.prototype.getAngle=function(){return this.angle_};var br=Pr,Mr=function(t){function e(e,i,r){t.call(this,e),this.map=i,this.frameState=void 0!==r?r:null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P),Fr=function(t){function e(e,i,r,n,o){t.call(this,e,i,o),this.originalEvent=r,this.pixel=i.getEventPixel(r),this.coordinate=i.getCoordinateFromPixel(this.pixel),this.dragging=void 0!==n&&n}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.preventDefault=function(){t.prototype.preventDefault.call(this),this.originalEvent.preventDefault()},e.prototype.stopPropagation=function(){t.prototype.stopPropagation.call(this),this.originalEvent.stopPropagation()},e}(Mr),Ar={SINGLECLICK:"singleclick",CLICK:M.CLICK,DBLCLICK:M.DBLCLICK,POINTERDRAG:"pointerdrag",POINTERMOVE:"pointermove",POINTERDOWN:"pointerdown",POINTERUP:"pointerup",POINTEROVER:"pointerover",POINTEROUT:"pointerout",POINTERENTER:"pointerenter",POINTERLEAVE:"pointerleave",POINTERCANCEL:"pointercancel"},Nr=function(t){function e(e,i,r,n,o){t.call(this,e,i,r.originalEvent,n,o),this.pointerEvent=r}return 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i=Wr(t,this.dispatcher);this.dispatcher.up(i,t),this.cleanupMouse()}}}function Xr(t){if(!this.isEventSimulatedFromTouch_(t)){var e=Wr(t,this.dispatcher);this.dispatcher.enterOver(e,t)}}function zr(t){if(!this.isEventSimulatedFromTouch_(t)){var e=Wr(t,this.dispatcher);this.dispatcher.leaveOut(e,t)}}function Wr(t,e){var i=e.cloneEvent(t,t),r=i.preventDefault;return i.preventDefault=function(){t.preventDefault(),r()},i.pointerId=jr,i.isPrimary=!0,i.pointerType=Ur,i}var Kr=function(t){function e(e){var i={mousedown:Yr,mousemove:Br,mouseup:Vr,mouseover:Xr,mouseout:zr};t.call(this,e,i),this.pointerMap=e.pointerMap,this.lastTouches=[]}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.isEventSimulatedFromTouch_=function(t){for(var e=this.lastTouches,i=t.clientX,r=t.clientY,n=0,o=e.length,s=void 0;n=e.length){for(var 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r+Math.log(e/t)/Math.log(i)},e.prototype.getResolutionForZoom=function(t){return this.constrainResolution(this.maxResolution_,t-this.minZoom_,0)},e.prototype.fit=function(t,e){var i,r=e||{},n=r.size;n||(n=this.getSizeFromViewport_()),Y(Array.isArray(t)||"function"==typeof t.getSimplifiedGeometry,24),Array.isArray(t)?(Y(!bt(t),25),i=Oi(t)):t.getType()===Nt.CIRCLE?(i=Oi(t=t.getExtent())).rotate(this.getRotation(),Tt(t)):i=t;var o,s=void 0!==r.padding?r.padding:[0,0,0,0],a=void 0===r.constrainResolution||r.constrainResolution,h=void 0!==r.nearest&&r.nearest;o=void 0!==r.minResolution?r.minResolution:void 0!==r.maxZoom?this.constrainResolution(this.maxResolution_,r.maxZoom-this.minZoom_,0):0;for(var l=i.getFlatCoordinates(),u=this.getRotation(),p=Math.cos(-u),c=Math.sin(-u),d=1/0,f=1/0,_=-1/0,g=-1/0,y=i.getStride(),v=0,m=l.length;v=0;i--){var r=e[i];if(r.getActive())if(!r.handleEvent(t))break}}},e.prototype.handlePostRender=function(){var t=this.frameState_,e=this.tileQueue_;if(!e.isEmpty()){var i=this.maxTilesLoading_,r=i;if(t){var n=t.viewHints;n[kn]&&(i=this.loadTilesWhileAnimating_?8:0,r=2),n[jn]&&(i=this.loadTilesWhileInteracting_?8:0,r=2)}e.getTilesLoading()0&&t[1]>0}(i)&&r&&r.isDef()){for(var h=r.getHints(this.frameState_?this.frameState_.viewHints:void 0),l=this.getLayerGroup().getLayerStatesArray(),u={},p=0,c=l.length;p=t.minResolution&&e0;if(this.renderedVisible_!=i&&(this.element.style.display=i?"":"none",this.renderedVisible_=i),!Z(e,this.renderedAttributions_)){to(this.ulElement_);for(var r=0,n=e.length;r0?t.animate({rotation:0,duration:this.duration_,easing:Xn}):t.setRotation(0))},e}(uo),Ro=function(t){function e(e){var i=e||{};t.call(this,{element:document.createElement("div"),target:i.target});var r=void 0!==i.className?i.className:"ol-zoom",n=void 0!==i.delta?i.delta:1,o=void 0!==i.zoomInLabel?i.zoomInLabel:"+",s=void 0!==i.zoomOutLabel?i.zoomOutLabel:"−",a=void 0!==i.zoomInTipLabel?i.zoomInTipLabel:"Zoom in",h=void 0!==i.zoomOutTipLabel?i.zoomOutTipLabel:"Zoom out",l=document.createElement("button");l.className=r+"-in",l.setAttribute("type","button"),l.title=a,l.appendChild("string"==typeof o?document.createTextNode(o):o),v(l,M.CLICK,this.handleClick_.bind(this,n));var u=document.createElement("button");u.className=r+"-out",u.setAttribute("type","button"),u.title=h,u.appendChild("string"==typeof s?document.createTextNode(s):s),v(u,M.CLICK,this.handleClick_.bind(this,-n));var p=r+" "+fo+" "+go,c=this.element;c.className=p,c.appendChild(l),c.appendChild(u),this.duration_=void 0!==i.duration?i.duration:250}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.handleClick_=function(t,e){e.preventDefault(),this.zoomByDelta_(t)},e.prototype.zoomByDelta_=function(t){var e=this.getMap().getView();if(e){var i=e.getResolution();if(i){var r=e.constrainResolution(i,t);this.duration_>0?(e.getAnimating()&&e.cancelAnimations(),e.animate({resolution:r,duration:this.duration_,easing:Xn})):e.setResolution(r)}}},e}(uo);function wo(t){var e=t||{},i=new U;return(void 0===e.zoom||e.zoom)&&i.push(new Ro(e.zoomOptions)),(void 0===e.rotate||e.rotate)&&i.push(new Co(e.rotateOptions)),(void 0===e.attribution||e.attribution)&&i.push(new So(e.attributionOptions)),i}var Io={ACTIVE:"active"};function Lo(t,e,i,r){Oo(t,e=t.constrainRotation(e,0),i,r)}function Oo(t,e,i,r){if(void 0!==e){var n=t.getRotation(),o=t.getCenter();void 0!==n&&o&&r>0?t.animate({rotation:e,anchor:i,duration:r,easing:Xn}):t.rotate(e,i)}}function Po(t,e,i,r,n){Mo(t,e=t.constrainResolution(e,0,n),i,r)}function bo(t,e,i,r){var n=t.getResolution(),o=t.constrainResolution(n,e,0);if(void 0!==o){var s=t.getResolutions();o=kt(o,t.getMinResolution()||s[s.length-1],t.getMaxResolution()||s[0])}if(i&&void 0!==o&&o!==n){var a=t.getCenter(),h=t.calculateCenterZoom(o,i);h=t.constrainCenter(h),i=[(o*a[0]-n*h[0])/(o-n),(o*a[1]-n*h[1])/(o-n)]}Mo(t,o,i,r)}function Mo(t,e,i,r){if(e){var n=t.getResolution(),o=t.getCenter();if(void 0!==n&&o&&e!==n&&r)t.animate({resolution:e,anchor:i,duration:r,easing:Xn});else{if(i){var s=t.calculateCenterZoom(e,i);t.setCenter(s)}t.setResolution(e)}}}var Fo=function(t){function e(e){t.call(this),e.handleEvent&&(this.handleEvent=e.handleEvent),this.map_=null,this.setActive(!0)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getActive=function(){return this.get(Io.ACTIVE)},e.prototype.getMap=function(){return this.map_},e.prototype.handleEvent=function(t){return!0},e.prototype.setActive=function(t){this.set(Io.ACTIVE,t)},e.prototype.setMap=function(t){this.map_=t},e}(D);function Ao(t){var e=!1;if(t.type==Ar.DBLCLICK){var i=t.originalEvent,r=t.map,n=t.coordinate,o=i.shiftKey?-this.delta_:this.delta_;bo(r.getView(),o,n,this.duration_),t.preventDefault(),e=!0}return!e}var No=function(t){function e(e){t.call(this,{handleEvent:Ao});var i=e||{};this.delta_=i.delta?i.delta:1,this.duration_=void 0!==i.duration?i.duration:250}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(Fo),Go=function(t){var e=t.originalEvent;return e.altKey&&!(e.metaKey||e.ctrlKey)&&!e.shiftKey},Do=function(t){var e=t.originalEvent;return e.altKey&&!(e.metaKey||e.ctrlKey)&&e.shiftKey},ko=function(t){return t.target.getTargetElement()===document.activeElement},jo=R,Uo=function(t){var e=t.originalEvent;return 0==e.button&&!(Ni&&Gi&&e.ctrlKey)},Yo=w,Bo=function(t){return"pointermove"==t.type},Vo=function(t){return t.type==Ar.SINGLECLICK},Xo=function(t){var e=t.originalEvent;return!e.altKey&&!(e.metaKey||e.ctrlKey)&&!e.shiftKey},zo=function(t){var e=t.originalEvent;return!e.altKey&&!(e.metaKey||e.ctrlKey)&&e.shiftKey},Wo=function(t){var e=t.originalEvent.target.tagName;return"INPUT"!==e&&"SELECT"!==e&&"TEXTAREA"!==e},Ko=function(t){var e=t.pointerEvent;return Y(void 0!==e,56),"mouse"==e.pointerType},Ho=function(t){var e=t.pointerEvent;return Y(void 0!==e,56),e.isPrimary&&0===e.button};function Zo(t){for(var e=t.length,i=0,r=0,n=0;n0}}else if(t.type==Ar.POINTERDOWN){var r=this.handleDownEvent(t);r&&t.preventDefault(),this.handlingDownUpSequence=r,e=this.stopDown(r)}else t.type==Ar.POINTERMOVE&&this.handleMoveEvent(t);return!e},e.prototype.handleMoveEvent=function(t){},e.prototype.handleUpEvent=function(t){return!1},e.prototype.stopDown=function(t){return t},e.prototype.updateTrackedPointers_=function(t){if(function(t){var e=t.type;return e===Ar.POINTERDOWN||e===Ar.POINTERDRAG||e===Ar.POINTERUP}(t)){var e=t.pointerEvent,i=e.pointerId.toString();t.type==Ar.POINTERUP?delete 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this.kinetic_&&this.kinetic_.begin();this.lastCentroid=i,this.lastPointersCount_=e.length},e.prototype.handleUpEvent=function(t){var e=t.map,i=e.getView();if(0===this.targetPointers.length){if(!this.noKinetic_&&this.kinetic_&&this.kinetic_.end()){var r=this.kinetic_.getDistance(),n=this.kinetic_.getAngle(),o=i.getCenter(),s=e.getPixelFromCoordinate(o),a=e.getCoordinateFromPixel([s[0]-r*Math.cos(n),s[1]-r*Math.sin(n)]);i.animate({center:i.constrainCenter(a),duration:500,easing:Xn})}return this.panning_&&(this.panning_=!1,i.setHint(jn,-1)),!1}return this.kinetic_&&this.kinetic_.begin(),this.lastCentroid=null,!0},e.prototype.handleDownEvent=function(t){if(this.targetPointers.length>0&&this.condition_(t)){var e=t.map.getView();return this.lastCentroid=null,e.getAnimating()&&e.setCenter(t.frameState.viewState.center),this.kinetic_&&this.kinetic_.begin(),this.noKinetic_=this.targetPointers.length>1,!0}return!1},e}(qo),Qo=function(t){function e(e){var i=e||{};t.call(this,{stopDown:w}),this.condition_=i.condition?i.condition:Do,this.lastAngle_=void 0,this.duration_=void 0!==i.duration?i.duration:250}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.handleDragEvent=function(t){if(Ko(t)){var e=t.map,i=e.getView();if(i.getConstraints().rotation!==Gn){var r=e.getSize(),n=t.pixel,o=Math.atan2(r[1]/2-n[1],n[0]-r[0]/2);if(void 0!==this.lastAngle_){var s=o-this.lastAngle_;Oo(i,i.getRotation()-s)}this.lastAngle_=o}}},e.prototype.handleUpEvent=function(t){if(!Ko(t))return!0;var e=t.map.getView();return e.setHint(jn,-1),Lo(e,e.getRotation(),void 0,this.duration_),!1},e.prototype.handleDownEvent=function(t){return!!Ko(t)&&(!(!Uo(t)||!this.condition_(t))&&(t.map.getView().setHint(jn,1),this.lastAngle_=void 0,!0))},e}(qo),$o=function(t){function e(e){t.call(this),this.geometry_=null,this.element_=document.createElement("div"),this.element_.style.position="absolute",this.element_.className="ol-box "+e,this.map_=null,this.startPixel_=null,this.endPixel_=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.setMap(null)},e.prototype.render_=function(){var t=this.startPixel_,e=this.endPixel_,i=this.element_.style;i.left=Math.min(t[0],e[0])+"px",i.top=Math.min(t[1],e[1])+"px",i.width=Math.abs(e[0]-t[0])+"px",i.height=Math.abs(e[1]-t[1])+"px"},e.prototype.setMap=function(t){if(this.map_){this.map_.getOverlayContainer().removeChild(this.element_);var e=this.element_.style;e.left=e.top=e.width=e.height="inherit"}this.map_=t,this.map_&&this.map_.getOverlayContainer().appendChild(this.element_)},e.prototype.setPixels=function(t,e){this.startPixel_=t,this.endPixel_=e,this.createOrUpdateGeometry(),this.render_()},e.prototype.createOrUpdateGeometry=function(){var t=this.startPixel_,e=this.endPixel_,i=[t,[t[0],e[1]],e,[e[0],t[1]]].map(this.map_.getCoordinateFromPixel,this.map_);i[4]=i[0].slice(),this.geometry_?this.geometry_.setCoordinates([i]):this.geometry_=new Ii([i])},e.prototype.getGeometry=function(){return this.geometry_},e}(C),ts="boxstart",es="boxdrag",is="boxend",rs=function(t){function e(e,i,r){t.call(this,e),this.coordinate=i,this.mapBrowserEvent=r}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P),ns=function(t){function e(e){t.call(this);var i=e||{};this.box_=new $o(i.className||"ol-dragbox"),this.minArea_=void 0!==i.minArea?i.minArea:64,this.onBoxEnd_=i.onBoxEnd?i.onBoxEnd:I,this.startPixel_=null,this.condition_=i.condition?i.condition:jo,this.boxEndCondition_=i.boxEndCondition?i.boxEndCondition:this.defaultBoxEndCondition}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.defaultBoxEndCondition=function(t,e,i){var r=i[0]-e[0],n=i[1]-e[1];return r*r+n*n>=this.minArea_},e.prototype.getGeometry=function(){return this.box_.getGeometry()},e.prototype.handleDragEvent=function(t){Ko(t)&&(this.box_.setPixels(this.startPixel_,t.pixel),this.dispatchEvent(new rs(es,t.coordinate,t)))},e.prototype.handleUpEvent=function(t){return!Ko(t)||(this.box_.setMap(null),this.boxEndCondition_(t,this.startPixel_,t.pixel)&&(this.onBoxEnd_(t),this.dispatchEvent(new rs(is,t.coordinate,t))),!1)},e.prototype.handleDownEvent=function(t){return!!Ko(t)&&(!(!Uo(t)||!this.condition_(t))&&(this.startPixel_=t.pixel,this.box_.setMap(t.map),this.box_.setPixels(this.startPixel_,this.startPixel_),this.dispatchEvent(new rs(ts,t.coordinate,t)),!0))},e}(qo);function os(){var t=this.getMap(),e=t.getView(),i=t.getSize(),r=this.getGeometry().getExtent();if(this.out_){var n=e.calculateExtent(i),o=function(t,e){return gt(ut(e),t)}([t.getPixelFromCoordinate(Et(r)),t.getPixelFromCoordinate(Lt(r))]);Mt(n,1/e.getResolutionForExtent(o,i)),r=n}var s=e.constrainResolution(e.getResolutionForExtent(r,i)),a=Tt(r);a=e.constrainCenter(a),e.animate({resolution:s,center:a,duration:this.duration_,easing:Xn})}var ss=function(t){function e(e){var i=e||{},r=i.condition?i.condition:zo;t.call(this,{condition:r,className:i.className||"ol-dragzoom",onBoxEnd:os}),this.duration_=void 0!==i.duration?i.duration:200,this.out_=void 0!==i.out&&i.out}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(ns),as={LEFT:37,UP:38,RIGHT:39,DOWN:40};function hs(t){var e=!1;if(t.type==M.KEYDOWN){var i=t.originalEvent.keyCode;if(this.condition_(t)&&(i==as.DOWN||i==as.LEFT||i==as.RIGHT||i==as.UP)){var r=t.map.getView(),n=r.getResolution()*this.pixelDelta_,o=0,s=0;i==as.DOWN?s=-n:i==as.LEFT?o=-n:i==as.RIGHT?o=n:s=n;var a=[o,s];$i(a,r.getRotation()),function(t,e,i){var r=t.getCenter();if(r){var n=t.constrainCenter([r[0]+e[0],r[1]+e[1]]);i?t.animate({duration:i,easing:Wn,center:n}):t.setCenter(n)}}(r,a,this.duration_),t.preventDefault(),e=!0}}return!e}var ls=function(t){function e(e){t.call(this,{handleEvent:hs});var i=e||{};this.defaultCondition_=function(t){return Xo(t)&&Wo(t)},this.condition_=void 0!==i.condition?i.condition:this.defaultCondition_,this.duration_=void 0!==i.duration?i.duration:100,this.pixelDelta_=void 0!==i.pixelDelta?i.pixelDelta:128}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(Fo);function us(t){var e=!1;if(t.type==M.KEYDOWN||t.type==M.KEYPRESS){var i=t.originalEvent.charCode;if(this.condition_(t)&&(i=="+".charCodeAt(0)||i=="-".charCodeAt(0))){var r=t.map,n=i=="+".charCodeAt(0)?this.delta_:-this.delta_;bo(r.getView(),n,void 0,this.duration_),t.preventDefault(),e=!0}}return!e}var ps=function(t){function e(e){t.call(this,{handleEvent:us});var i=e||{};this.condition_=i.condition?i.condition:Wo,this.delta_=i.delta?i.delta:1,this.duration_=void 0!==i.duration?i.duration:100}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(Fo),cs="trackpad",ds="wheel",fs=function(t){function e(e){var i=e||{};t.call(this,i),this.delta_=0,this.duration_=void 0!==i.duration?i.duration:250,this.timeout_=void 0!==i.timeout?i.timeout:80,this.useAnchor_=void 0===i.useAnchor||i.useAnchor,this.constrainResolution_=i.constrainResolution||!1,this.condition_=i.condition?i.condition:jo,this.lastAnchor_=null,this.startTime_=void 0,this.timeoutId_,this.mode_=void 0,this.trackpadEventGap_=400,this.trackpadTimeoutId_,this.trackpadDeltaPerZoom_=300,this.trackpadZoomBuffer_=1.5}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.decrementInteractingHint_=function(){this.trackpadTimeoutId_=void 0,this.getMap().getView().setHint(jn,-1)},e.prototype.handleEvent=function(t){if(!this.condition_(t))return!0;var e=t.type;if(e!==M.WHEEL&&e!==M.MOUSEWHEEL)return!0;t.preventDefault();var i,r=t.map,n=t.originalEvent;if(this.useAnchor_&&(this.lastAnchor_=t.coordinate),t.type==M.WHEEL?(i=n.deltaY,Fi&&n.deltaMode===WheelEvent.DOM_DELTA_PIXEL&&(i/=Di),n.deltaMode===WheelEvent.DOM_DELTA_LINE&&(i*=40)):t.type==M.MOUSEWHEEL&&(i=-n.wheelDeltaY,Ai&&(i/=3)),0===i)return!1;var o=Date.now();if(void 0===this.startTime_&&(this.startTime_=o),(!this.mode_||o-this.startTime_>this.trackpadEventGap_)&&(this.mode_=Math.abs(i)<4?cs:ds),this.mode_===cs){var s=r.getView();this.trackpadTimeoutId_?clearTimeout(this.trackpadTimeoutId_):s.setHint(jn,1),this.trackpadTimeoutId_=setTimeout(this.decrementInteractingHint_.bind(this),this.trackpadEventGap_);var a=s.getResolution()*Math.pow(2,i/this.trackpadDeltaPerZoom_),h=s.getMinResolution(),l=s.getMaxResolution(),u=0;if(al&&(a=Math.min(a,l*this.trackpadZoomBuffer_),u=-1),this.lastAnchor_){var p=s.calculateCenterZoom(a,this.lastAnchor_);s.setCenter(s.constrainCenter(p))}return s.setResolution(a),0===u&&this.constrainResolution_&&s.animate({resolution:s.constrainResolution(a,i>0?-1:1),easing:Xn,anchor:this.lastAnchor_,duration:this.duration_}),u>0?s.animate({resolution:h,easing:Xn,anchor:this.lastAnchor_,duration:500}):u<0&&s.animate({resolution:l,easing:Xn,anchor:this.lastAnchor_,duration:500}),this.startTime_=o,!1}this.delta_+=i;var c=Math.max(this.timeout_-(o-this.startTime_),0);return clearTimeout(this.timeoutId_),this.timeoutId_=setTimeout(this.handleWheelZoom_.bind(this,r),c),!1},e.prototype.handleWheelZoom_=function(t){var e=t.getView();e.getAnimating()&&e.cancelAnimations();bo(e,-kt(this.delta_,-1,1),this.lastAnchor_,this.duration_),this.mode_=void 0,this.delta_=0,this.lastAnchor_=null,this.startTime_=void 0,this.timeoutId_=void 0},e.prototype.setMouseAnchor=function(t){this.useAnchor_=t,t||(this.lastAnchor_=null)},e}(Fo),_s=function(t){function e(e){var i=e||{},r=i;r.stopDown||(r.stopDown=w),t.call(this,r),this.anchor_=null,this.lastAngle_=void 0,this.rotating_=!1,this.rotationDelta_=0,this.threshold_=void 0!==i.threshold?i.threshold:.3,this.duration_=void 0!==i.duration?i.duration:250}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.handleDragEvent=function(t){var e=0,i=this.targetPointers[0],r=this.targetPointers[1],n=Math.atan2(r.clientY-i.clientY,r.clientX-i.clientX);if(void 0!==this.lastAngle_){var o=n-this.lastAngle_;this.rotationDelta_+=o,!this.rotating_&&Math.abs(this.rotationDelta_)>this.threshold_&&(this.rotating_=!0),e=o}this.lastAngle_=n;var s=t.map,a=s.getView();if(a.getConstraints().rotation!==Gn){var h=s.getViewport().getBoundingClientRect(),l=Zo(this.targetPointers);if(l[0]-=h.left,l[1]-=h.top,this.anchor_=s.getCoordinateFromPixel(l),this.rotating_){var u=a.getRotation();s.render(),Oo(a,u+e,this.anchor_)}}},e.prototype.handleUpEvent=function(t){if(this.targetPointers.length<2){var e=t.map.getView();if(e.setHint(jn,-1),this.rotating_)Lo(e,e.getRotation(),this.anchor_,this.duration_);return!1}return!0},e.prototype.handleDownEvent=function(t){if(this.targetPointers.length>=2){var e=t.map;return this.anchor_=null,this.lastAngle_=void 0,this.rotating_=!1,this.rotationDelta_=0,this.handlingDownUpSequence||e.getView().setHint(jn,1),!0}return!1},e}(qo),gs=function(t){function e(e){var i=e||{},r=i;r.stopDown||(r.stopDown=w),t.call(this,r),this.constrainResolution_=i.constrainResolution||!1,this.anchor_=null,this.duration_=void 0!==i.duration?i.duration:400,this.lastDistance_=void 0,this.lastScaleDelta_=1}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.handleDragEvent=function(t){var e=1,i=this.targetPointers[0],r=this.targetPointers[1],n=i.clientX-r.clientX,o=i.clientY-r.clientY,s=Math.sqrt(n*n+o*o);void 0!==this.lastDistance_&&(e=this.lastDistance_/s),this.lastDistance_=s;var a=t.map,h=a.getView(),l=h.getResolution(),u=h.getMaxResolution(),p=h.getMinResolution(),c=l*e;c>u?(e=u/l,c=u):ce.getMaxResolution()){var r=this.lastScaleDelta_-1;Po(e,i,this.anchor_,this.duration_,r)}return!1}return!0},e.prototype.handleDownEvent=function(t){if(this.targetPointers.length>=2){var e=t.map;return this.anchor_=null,this.lastDistance_=void 0,this.lastScaleDelta_=1,this.handlingDownUpSequence||e.getView().setHint(jn,1),!0}return!1},e}(qo);function ys(t){var e=t||{},i=new U,r=new br(-.005,.05,100);return(void 0===e.altShiftDragRotate||e.altShiftDragRotate)&&i.push(new Qo),(void 0===e.doubleClickZoom||e.doubleClickZoom)&&i.push(new No({delta:e.zoomDelta,duration:e.zoomDuration})),(void 0===e.dragPan||e.dragPan)&&i.push(new Jo({condition:e.onFocusOnly?ko:void 0,kinetic:r})),(void 0===e.pinchRotate||e.pinchRotate)&&i.push(new _s),(void 0===e.pinchZoom||e.pinchZoom)&&i.push(new gs({constrainResolution:e.constrainResolution,duration:e.zoomDuration})),(void 0===e.keyboard||e.keyboard)&&(i.push(new ls),i.push(new ps({delta:e.zoomDelta,duration:e.zoomDuration}))),(void 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e=t.viewState,i=t.coordinateToPixelTransform,r=t.pixelToCoordinateTransform;Ye(i,t.size[0]/2,t.size[1]/2,1/e.resolution,-1/e.resolution,-e.rotation,-e.center[0],-e.center[1]),Be(Ge(r,i))},e.prototype.removeLayerRenderers=function(){for(var t in this.layerRenderers_)this.removeLayerRendererByKey_(t).dispose()},e.prototype.forEachFeatureAtCoordinate=function(t,e,i,r,n,s,a){var h,l=e.viewState,u=l.resolution;function p(t,i){var s=e.layerStates[o(i)].managed;if(!(o(t)in e.skippedFeatureUids)||s)return r.call(n,t,s?i:null)}var c=l.projection,d=t;if(c.canWrapX()){var f=c.getExtent(),_=Ot(f),g=t[0];if(gf[2])d=[g+_*Math.ceil((f[0]-g)/_),t[1]]}var y,v=e.layerStatesArray;for(y=v.length-1;y>=0;--y){var m=v[y],x=m.layer;if(mo(m,u)&&s.call(a,x)){var E=this.getLayerRenderer(x),S=x.getSource();if(S&&(h=E.forEachFeatureAtCoordinate(S.getWrapX()?d:t,e,i,p)),h)return h}}},e.prototype.forEachLayerAtPixel=function(t,e,i,n,o,s,a){return r()},e.prototype.hasFeatureAtCoordinate=function(t,e,i,r,n){return void 0!==this.forEachFeatureAtCoordinate(t,e,i,R,this,r,n)},e.prototype.getLayerRenderer=function(t){var e=o(t);if(e in this.layerRenderers_)return this.layerRenderers_[e];for(var i,r=0,n=this.layerRendererConstructors_.length;r=0;--h){var d=u[h],f=d.layer;if(mo(d,l)&&o.call(s,f))if(a=this.getLayerRenderer(f).forEachLayerAtCoordinate(c,e,i,r,n))return a}},e.prototype.registerLayerRenderers=function(e){t.prototype.registerLayerRenderers.call(this,e);for(var i=0,r=e.length;i=.5&&p>=.5&&i.drawImage(r,0,0,+r.width,+r.height,Math.round(h),Math.round(l),Math.round(u),Math.round(p)),i.globalAlpha=a,o&&i.restore()}this.postCompose(i,t,e)},e.prototype.getImage=function(){return r()},e.prototype.getImageTransform=function(){return r()},e.prototype.forEachLayerAtCoordinate=function(t,e,i,r,n){if(this.getImage()){var o=De(this.coordinateToCanvasPixelTransform,t.slice());tr(o,e.viewState.resolution/this.renderedResolution),this.hitCanvasContext_||(this.hitCanvasContext_=Jn(1,1)),this.hitCanvasContext_.clearRect(0,0,1,1),this.hitCanvasContext_.drawImage(this.getImage(),o[0],o[1],1,1,0,0,1,1);var s=this.hitCanvasContext_.getImageData(0,0,1,1).data;return s[3]>0?r.call(n,this.getLayer(),s):void 0}},e}(ta),ia=function(t){function e(i){if(t.call(this,i),this.image_=null,this.imageTransform_=[1,0,0,1,0,0],this.skippedFeatures_=[],this.vectorRenderer_=null,i.getType()===Ss.VECTOR)for(var r=0,n=Js.length;rthis.maxX&&(this.maxX=t.maxX),t.minYthis.maxY&&(this.maxY=t.maxY)},na.prototype.getHeight=function(){return this.maxY-this.minY+1},na.prototype.getSize=function(){return[this.getWidth(),this.getHeight()]},na.prototype.getWidth=function(){return this.maxX-this.minX+1},na.prototype.intersects=function(t){return this.minX<=t.maxX&&this.maxX>=t.minX&&this.minY<=t.maxY&&this.maxY>=t.minY};var sa=na,aa=function(t){function e(e,i){t.call(this,e),this.context=i?null:Jn(),this.oversampling_,this.renderedExtent_=null,this.renderedRevision,this.renderedTiles=[],this.newTiles_=!1,this.tmpExtent=[1/0,1/0,-1/0,-1/0],this.tmpTileRange_=new sa(0,0,0,0),this.imageTransform_=[1,0,0,1,0,0],this.zDirection=0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.isDrawableTile_=function(t){var e=this.getLayer(),i=t.getState(),r=e.getUseInterimTilesOnError();return i==On.LOADED||i==On.EMPTY||i==On.ERROR&&!r},e.prototype.getTile=function(t,e,i,r,n){var o=this.getLayer(),s=o.getSource().getTile(t,e,i,r,n);return s.getState()==On.ERROR&&(o.getUseInterimTilesOnError()?o.getPreload()>0&&(this.newTiles_=!0):s.setState(On.LOADED)),this.isDrawableTile_(s)||(s=s.getInterimTile()),s},e.prototype.prepareFrame=function(t,e){var i=t.pixelRatio,r=t.size,n=t.viewState,s=n.projection,a=n.resolution,h=n.center,l=this.getLayer(),u=l.getSource(),p=u.getRevision(),c=u.getTileGridForProjection(s),d=c.getZForResolution(a,this.zDirection),f=c.getResolution(d),_=Math.round(a/f)||1,g=t.extent;if(void 0!==e.extent&&(g=wt(g,e.extent)),bt(g))return!1;var y=c.getTileRangeForExtentAndZ(g,d),v=c.getTileRangeExtent(d,y),m=u.getTilePixelRatio(i),x={};x[d]={};var E,S,T,C=this.createLoadedTileFinder(u,s,x),R=t.viewHints,w=R[kn]||R[jn],I=this.tmpExtent,L=this.tmpTileRange_;for(this.newTiles_=!1,S=y.minX;S<=y.maxX;++S)for(T=y.minY;T<=y.maxY;++T)if(!(Date.now()-t.time>16&&w)){if(E=this.getTile(d,S,T,i,s),this.isDrawableTile_(E)){var O=o(this);if(E.getState()==On.LOADED){x[d][E.tileCoord.toString()]=E;var P=E.inTransition(O);this.newTiles_||!P&&-1!==this.renderedTiles.indexOf(E)||(this.newTiles_=!0)}if(1===E.getAlpha(O,t.time))continue}var b=c.getTileCoordChildTileRange(E.tileCoord,L,I),M=!1;b&&(M=C(d+1,b)),M||c.forEachTileCoordParentTileRange(E.tileCoord,C,null,L,I)}var F=f*i/m*_;if(!(this.renderedResolution&&Date.now()-t.time>16&&w)&&(this.newTiles_||!this.renderedExtent_||!ot(this.renderedExtent_,g)||this.renderedRevision!=p||_!=this.oversampling_||!w&&F!=this.renderedResolution)){var A=this.context;if(A){var N=u.getTilePixelSize(d,i,s),G=Math.round(y.getWidth()*N[0]/_),D=Math.round(y.getHeight()*N[1]/_),k=A.canvas;k.width!=G||k.height!=D?(this.oversampling_=_,k.width=G,k.height=D):((this.renderedExtent_&&!dt(v,this.renderedExtent_)||this.renderedRevision!=p)&&A.clearRect(0,0,G,D),_=this.oversampling_)}this.renderedTiles.length=0;var j,U,Y,B,V,X,z,W,K,H,Z=Object.keys(x).map(Number);for(Z.sort(function(t,e){return t===d?1:e===d?-1:t>e?1:t0},e.prototype.drawTileImage=function(t,e,i,r,n,s,a,h,l){var u=this.getTileImage(t);if(u){var p=o(this),c=l?t.getAlpha(p,e.time):1,d=this.getLayer().getSource();1!==c||d.getOpaque(e.viewState.projection)||this.context.clearRect(r,n,s,a);var f=c!==this.context.globalAlpha;f&&(this.context.save(),this.context.globalAlpha=c),this.context.drawImage(u,h,h,u.width-2*h,u.height-2*h,r,n,s,a),f&&this.context.restore(),1!==c?e.animate=!0:l&&t.endTransition(p)}},e.prototype.getImage=function(){var t=this.context;return t?t.canvas:null},e.prototype.getImageTransform=function(){return this.imageTransform_},e.prototype.getTileImage=function(t){return t.getImage()},e}(ea);aa.handles=function(t){return t.getType()===Ss.TILE},aa.create=function(t,e){return new aa(e)},aa.prototype.getLayer;var ha=aa,la=i(0),ua=i.n(la),pa=function(){};pa.prototype.getReplay=function(t,e){return r()},pa.prototype.isEmpty=function(){return r()},pa.prototype.addDeclutter=function(t){return r()};var ca=pa,da={CIRCLE:"Circle",DEFAULT:"Default",IMAGE:"Image",LINE_STRING:"LineString",POLYGON:"Polygon",TEXT:"Text"};function fa(t,e,i,r,n,o,s,a){for(var h,l,u,p=[],c=t[e]>t[i-r],d=n.length,f=t[e],_=t[e+1],g=t[e+=r],y=t[e+1],v=0,m=Math.sqrt(Math.pow(g-f,2)+Math.pow(y-_,2)),x="",E=0,S=0;S0?-Math.PI:Math.PI),void 0!==u){var L=I-u;if(L+=L>Math.PI?-2*Math.PI:L<-Math.PI?2*Math.PI:0,Math.abs(L)>a)return null}var O=w/m,P=zt(f,g,O),b=zt(_,y,O);u==I?(c&&(h[0]=P,h[1]=b,h[2]=C/2),h[4]=x):(E=C,h=[P,b,C/2,I,x=T],c?p.unshift(h):p.push(h),u=I),s+=C}return p}var _a={BEGIN_GEOMETRY:0,BEGIN_PATH:1,CIRCLE:2,CLOSE_PATH:3,CUSTOM:4,DRAW_CHARS:5,DRAW_IMAGE:6,END_GEOMETRY:7,FILL:8,MOVE_TO_LINE_TO:9,SET_FILL_STYLE:10,SET_STROKE_STYLE:11,STROKE:12},ga=[_a.FILL],ya=[_a.STROKE],va=[_a.BEGIN_PATH],ma=[_a.CLOSE_PATH],xa=_a,Ea=[da.POLYGON,da.CIRCLE,da.LINE_STRING,da.IMAGE,da.TEXT,da.DEFAULT],Sa={left:0,end:0,center:.5,right:1,start:1,top:0,middle:.5,hanging:.2,alphabetic:.8,ideographic:.8,bottom:1},Ta=[1/0,1/0,-1/0,-1/0],Ca=[1,0,0,1,0,0],Ra=function(t){function e(e,i,r,n,o,s){t.call(this),this.declutterTree=s,this.tolerance=e,this.maxExtent=i,this.overlaps=o,this.pixelRatio=n,this.maxLineWidth=0,this.resolution=r,this.alignFill_,this.beginGeometryInstruction1_=null,this.beginGeometryInstruction2_=null,this.bufferedMaxExtent_=null,this.instructions=[],this.coordinates=[],this.coordinateCache_={},this.renderedTransform_=[1,0,0,1,0,0],this.hitDetectionInstructions=[],this.pixelCoordinates_=null,this.state={},this.viewRotation_=0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.replayTextBackground_=function(t,e,i,r,n,o,s){t.beginPath(),t.moveTo.apply(t,e),t.lineTo.apply(t,i),t.lineTo.apply(t,r),t.lineTo.apply(t,n),t.lineTo.apply(t,e),o&&(this.alignFill_=o[2],this.fill_(t)),s&&(this.setStrokeStyle_(t,s),t.stroke())},e.prototype.replayImage_=function(t,e,i,r,n,o,s,a,h,l,u,p,c,d,f,_,g,y){var v=g||y;e-=n*=c,i-=o*=c;var m,x,E,S,T=f+l>r.width?r.width-l:f,C=a+u>r.height?r.height-u:a,R=_[3]+T*c+_[1],w=_[0]+C*c+_[2],I=e-_[3],L=i-_[0];(v||0!==p)&&(m=[I,L],x=[I+R,L],E=[I+R,L+w],S=[I,L+w]);var O=null;if(0!==p){var P=e+n,b=i+o;O=Ye(Ca,P,b,1,1,p,-P,-b),ut(Ta),_t(Ta,De(Ca,m)),_t(Ta,De(Ca,x)),_t(Ta,De(Ca,E)),_t(Ta,De(Ca,S))}else lt(I,L,I+R,L+w,Ta);var M=t.canvas,F=y?y[2]*c/2:0,A=Ta[0]-F<=M.width&&Ta[2]+F>=0&&Ta[1]-F<=M.height&&Ta[3]+F>=0;if(d&&(e=Math.round(e),i=Math.round(i)),s){if(!A&&1==s[4])return;ft(s,Ta);var N=A?[t,O?O.slice(0):null,h,r,l,u,T,C,e,i,c]:null;N&&v&&N.push(g,y,m,x,E,S),s.push(N)}else A&&(v&&this.replayTextBackground_(t,m,x,E,S,g,y),Us(t,O,h,r,l,u,T,C,e,i,c))},e.prototype.applyPixelRatio=function(t){var e=this.pixelRatio;return 1==e?t:t.map(function(t){return t*e})},e.prototype.appendFlatCoordinates=function(t,e,i,r,n,o){var s=this.coordinates.length,a=this.getBufferedMaxExtent();o&&(e+=r);var h,l,u,p=[t[e],t[e+1]],c=[NaN,NaN],d=!0;for(h=e+r;h5){var i=t[4];if(1==i||i==t.length-5){var r={minX:t[0],minY:t[1],maxX:t[2],maxY:t[3],value:e};if(!this.declutterTree.collides(r)){this.declutterTree.insert(r);for(var n=5,o=t.length;n11&&this.replayTextBackground_(s[0],s[13],s[14],s[15],s[16],s[11],s[12]),Us.apply(void 0,s))}}t.length=5,ut(t)}}},e.prototype.replay_=function(t,e,i,r,n,s,a){var h;this.pixelCoordinates_&&Z(e,this.renderedTransform_)?h=this.pixelCoordinates_:(this.pixelCoordinates_||(this.pixelCoordinates_=[]),h=Gt(this.coordinates,0,this.coordinates.length,2,e,this.pixelCoordinates_),Ge(this.renderedTransform_,e));for(var l,u,p,c,f,_,g,y,v,m,x,E,S=!d(i),T=0,C=r.length,R=0,w=0,I=0,L=null,O=null,P=this.coordinateCache_,b=this.viewRotation_,M={context:t,pixelRatio:this.pixelRatio,resolution:this.resolution,rotation:b},F=this.instructions!=r||this.overlaps?0:200;TF&&(this.fill_(t),w=0),I>F&&(t.stroke(),I=0),w||I||(t.beginPath(),c=f=NaN),++T;break;case xa.CIRCLE:var N=h[R=A[1]],G=h[R+1],D=h[R+2]-N,k=h[R+3]-G,j=Math.sqrt(D*D+k*k);t.moveTo(N+j,G),t.arc(N,G,j,0,2*Math.PI,!0),++T;break;case xa.CLOSE_PATH:t.closePath(),++T;break;case xa.CUSTOM:R=A[1],l=A[2];var U=A[3],Y=A[4],B=6==A.length?A[5]:void 0;M.geometry=U,M.feature=m,T in P||(P[T]=[]);var V=P[T];B?B(h,R,l,2,V):(V[0]=h[R],V[1]=h[R+1],V.length=2),Y(V,M),++T;break;case xa.DRAW_IMAGE:R=A[1],l=A[2],v=A[3],u=A[4],p=A[5],y=s?null:A[6];var X=A[7],z=A[8],W=A[9],K=A[10],H=A[11],q=A[12],J=A[13],Q=A[14],$=void 0,tt=void 0,et=void 0;for(A.length>16?($=A[15],tt=A[16],et=A[17]):($=Os,tt=et=!1),H&&(q+=b);Rthis.maxLineWidth&&(this.maxLineWidth=i.lineWidth,this.bufferedMaxExtent_=null)}else i.strokeStyle=void 0,i.lineCap=void 0,i.lineDash=null,i.lineDashOffset=void 0,i.lineJoin=void 0,i.lineWidth=void 0,i.miterLimit=void 0},e.prototype.createFill=function(t,e){var i=t.fillStyle,r=[xa.SET_FILL_STYLE,i];return"string"!=typeof i&&r.push(!0),r},e.prototype.applyStroke=function(t){this.instructions.push(this.createStroke(t))},e.prototype.createStroke=function(t){return[xa.SET_STROKE_STYLE,t.strokeStyle,t.lineWidth*this.pixelRatio,t.lineCap,t.lineJoin,t.miterLimit,this.applyPixelRatio(t.lineDash),t.lineDashOffset*this.pixelRatio]},e.prototype.updateFillStyle=function(t,e,i){var r=t.fillStyle;"string"==typeof r&&t.currentFillStyle==r||(void 0!==r&&this.instructions.push(e.call(this,t,i)),t.currentFillStyle=r)},e.prototype.updateStrokeStyle=function(t,e){var i=t.strokeStyle,r=t.lineCap,n=t.lineDash,o=t.lineDashOffset,s=t.lineJoin,a=t.lineWidth,h=t.miterLimit;(t.currentStrokeStyle!=i||t.currentLineCap!=r||n!=t.currentLineDash&&!Z(t.currentLineDash,n)||t.currentLineDashOffset!=o||t.currentLineJoin!=s||t.currentLineWidth!=a||t.currentMiterLimit!=h)&&(void 0!==i&&e.call(this,t),t.currentStrokeStyle=i,t.currentLineCap=r,t.currentLineDash=n,t.currentLineDashOffset=o,t.currentLineJoin=s,t.currentLineWidth=a,t.currentMiterLimit=h)},e.prototype.endGeometry=function(t,e){this.beginGeometryInstruction1_[2]=this.instructions.length,this.beginGeometryInstruction1_=null,this.beginGeometryInstruction2_[2]=this.hitDetectionInstructions.length,this.beginGeometryInstruction2_=null;var i=[xa.END_GEOMETRY,e];this.instructions.push(i),this.hitDetectionInstructions.push(i)},e.prototype.getBufferedMaxExtent=function(){if(!this.bufferedMaxExtent_&&(this.bufferedMaxExtent_=it(this.maxExtent),this.maxLineWidth>0)){var t=this.resolution*(this.maxLineWidth+1)/2;et(this.bufferedMaxExtent_,t,this.bufferedMaxExtent_)}return this.bufferedMaxExtent_},e}(Vs),wa=function(t){function e(e,i,r,n,o,s){t.call(this,e,i,r,n,o,s),this.declutterGroup_=null,this.hitDetectionImage_=null,this.image_=null,this.anchorX_=void 0,this.anchorY_=void 0,this.height_=void 0,this.opacity_=void 0,this.originX_=void 0,this.originY_=void 0,this.rotateWithView_=void 0,this.rotation_=void 0,this.scale_=void 0,this.width_=void 0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawCoordinates_=function(t,e,i,r){return this.appendFlatCoordinates(t,e,i,r,!1,!1)},e.prototype.drawPoint=function(t,e){if(this.image_){this.beginGeometry(t,e);var i=t.getFlatCoordinates(),r=t.getStride(),n=this.coordinates.length,o=this.drawCoordinates_(i,0,i.length,r);this.instructions.push([xa.DRAW_IMAGE,n,o,this.image_,this.anchorX_,this.anchorY_,this.declutterGroup_,this.height_,this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,this.scale_*this.pixelRatio,this.width_]),this.hitDetectionInstructions.push([xa.DRAW_IMAGE,n,o,this.hitDetectionImage_,this.anchorX_,this.anchorY_,this.declutterGroup_,this.height_,this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,this.scale_,this.width_]),this.endGeometry(t,e)}},e.prototype.drawMultiPoint=function(t,e){if(this.image_){this.beginGeometry(t,e);var i=t.getFlatCoordinates(),r=t.getStride(),n=this.coordinates.length,o=this.drawCoordinates_(i,0,i.length,r);this.instructions.push([xa.DRAW_IMAGE,n,o,this.image_,this.anchorX_,this.anchorY_,this.declutterGroup_,this.height_,this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,this.scale_*this.pixelRatio,this.width_]),this.hitDetectionInstructions.push([xa.DRAW_IMAGE,n,o,this.hitDetectionImage_,this.anchorX_,this.anchorY_,this.declutterGroup_,this.height_,this.opacity_,this.originX_,this.originY_,this.rotateWithView_,this.rotation_,this.scale_,this.width_]),this.endGeometry(t,e)}},e.prototype.finish=function(){this.reverseHitDetectionInstructions(),this.anchorX_=void 0,this.anchorY_=void 0,this.hitDetectionImage_=null,this.image_=null,this.height_=void 0,this.scale_=void 0,this.opacity_=void 0,this.originX_=void 0,this.originY_=void 0,this.rotateWithView_=void 0,this.rotation_=void 0,this.width_=void 0},e.prototype.setImageStyle=function(t,e){var i=t.getAnchor(),r=t.getSize(),n=t.getHitDetectionImage(1),o=t.getImage(1),s=t.getOrigin();this.anchorX_=i[0],this.anchorY_=i[1],this.declutterGroup_=e,this.hitDetectionImage_=n,this.image_=o,this.height_=r[1],this.opacity_=t.getOpacity(),this.originX_=s[0],this.originY_=s[1],this.rotateWithView_=t.getRotateWithView(),this.rotation_=t.getRotation(),this.scale_=t.getScale(),this.width_=r[0]},e}(Ra),Ia=function(t){function e(e,i,r,n,o,s){t.call(this,e,i,r,n,o,s)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawFlatCoordinates_=function(t,e,i,r){var n=this.coordinates.length,o=this.appendFlatCoordinates(t,e,i,r,!1,!1),s=[xa.MOVE_TO_LINE_TO,n,o];return this.instructions.push(s),this.hitDetectionInstructions.push(s),i},e.prototype.drawLineString=function(t,e){var i=this.state,r=i.strokeStyle,n=i.lineWidth;if(void 0!==r&&void 0!==n){this.updateStrokeStyle(i,this.applyStroke),this.beginGeometry(t,e),this.hitDetectionInstructions.push([xa.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,i.lineDash,i.lineDashOffset],va);var o=t.getFlatCoordinates(),s=t.getStride();this.drawFlatCoordinates_(o,0,o.length,s),this.hitDetectionInstructions.push(ya),this.endGeometry(t,e)}},e.prototype.drawMultiLineString=function(t,e){var i=this.state,r=i.strokeStyle,n=i.lineWidth;if(void 0!==r&&void 0!==n){this.updateStrokeStyle(i,this.applyStroke),this.beginGeometry(t,e),this.hitDetectionInstructions.push([xa.SET_STROKE_STYLE,i.strokeStyle,i.lineWidth,i.lineCap,i.lineJoin,i.miterLimit,i.lineDash,i.lineDashOffset],va);for(var o=t.getEnds(),s=t.getFlatCoordinates(),a=t.getStride(),h=0,l=0,u=o.length;lt&&(y>g&&(g=y,f=v,_=o),y=0,v=o-n)),s=a,u=c,p=d),h=m,l=x}return(y+=a)>g?[v,o]:[f,_]}var Pa={Circle:La,Default:Ra,Image:wa,LineString:Ia,Polygon:La,Text:function(t){function e(e,i,r,n,o,s){t.call(this,e,i,r,n,o,s),this.declutterGroup_,this.labels_=null,this.text_="",this.textOffsetX_=0,this.textOffsetY_=0,this.textRotateWithView_=void 0,this.textRotation_=0,this.textFillState_=null,this.fillStates={},this.textStrokeState_=null,this.strokeStates={},this.textState_={},this.textStates={},this.textKey_="",this.fillKey_="",this.strokeKey_="",this.widths_={},Ps.prune()}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawText=function(t,e){var i=this.textFillState_,r=this.textStrokeState_,n=this.textState_;if(""!==this.text_&&n&&(i||r)){var o,s,a=this.coordinates.length,h=t.getType(),l=null,u=2,p=2;if(n.placement===Tr){if(!Pt(this.getBufferedMaxExtent(),t.getExtent()))return;var c;if(l=t.getFlatCoordinates(),p=t.getStride(),h==Nt.LINE_STRING)c=[l.length];else if(h==Nt.MULTI_LINE_STRING)c=t.getEnds();else if(h==Nt.POLYGON)c=t.getEnds().slice(0,1);else if(h==Nt.MULTI_POLYGON){var d=t.getEndss();for(c=[],o=0,s=d.length;o=E)&&l.push(S[o],S[o+1]);if(0==(u=l.length))return}u=this.appendFlatCoordinates(l,0,u,p,!1,!1),(n.backgroundFill||n.backgroundStroke)&&(this.setFillStrokeStyle(n.backgroundFill,n.backgroundStroke),n.backgroundFill&&(this.updateFillStyle(this.state,this.createFill,t),this.hitDetectionInstructions.push(this.createFill(this.state,t))),n.backgroundStroke&&(this.updateStrokeStyle(this.state,this.applyStroke),this.hitDetectionInstructions.push(this.createStroke(this.state)))),this.beginGeometry(t,e),this.drawTextImage_(x,a,u),this.endGeometry(t,e)}}},e.prototype.getImage=function(t,e,i,r){var n,o=r+e+t+i+this.pixelRatio;if(!Ps.containsKey(o)){var s=r?this.strokeStates[r]||this.textStrokeState_:null,a=i?this.fillStates[i]||this.textFillState_:null,h=this.textStates[e]||this.textState_,l=this.pixelRatio,u=h.scale*l,p=Sa[h.textAlign||"center"],c=r&&s.lineWidth?s.lineWidth:0,d=t.split("\n"),f=d.length,_=[],g=function(t,e,i){for(var r=e.length,n=0,o=0;o=o;)Fa(i,t+n,t+o),Fa(i,t+o,t+n),Fa(i,t-o,t+n),Fa(i,t-n,t+o),Fa(i,t-n,t-o),Fa(i,t-o,t-n),Fa(i,t+o,t-n),Fa(i,t+n,t-o),2*((s+=1+2*++o)-n)+1>0&&(s+=1-2*(n-=1));return Ma[t]=i,i}(r);function f(t){for(var e=u.getImageData(0,0,h,h).data,i=0;i0){var n=void 0;return(!p||c!=da.IMAGE&&c!=da.TEXT||-1!==p.indexOf(t))&&(n=o(t)),n||void u.clearRect(0,0,h,h)}}this.declutterTree_&&(p=this.declutterTree_.all().map(function(t){return t.value}));var _,g,y,v,m,x=Object.keys(this.replaysByZIndex_).map(Number);for(x.sort(V),_=x.length-1;_>=0;--_){var E=x[_].toString();for(y=this.replaysByZIndex_[E],g=Ea.length-1;g>=0;--g)if(void 0!==(v=y[c=Ea[g]]))if(!s||c!=da.IMAGE&&c!=da.TEXT){if(m=v.replayHitDetection(u,l,i,n,f,a))return m}else{var S=s[E];S?S.push(v,l.slice(0)):s[E]=[v,l.slice(0)]}}},e.prototype.getClipCoords=function(t){var e=this.maxExtent_,i=e[0],r=e[1],n=e[2],o=e[3],s=[i,r,i,o,n,o,n,r];return Gt(s,0,8,2,t,s),s},e.prototype.getReplay=function(t,e){var i=void 0!==t?t.toString():"0",r=this.replaysByZIndex_[i];void 0===r&&(r={},this.replaysByZIndex_[i]=r);var n=r[e];void 0===n&&(n=new(0,Pa[e])(this.tolerance_,this.maxExtent_,this.resolution_,this.pixelRatio_,this.overlaps_,this.declutterTree_),r[e]=n);return n},e.prototype.getReplays=function(){return this.replaysByZIndex_},e.prototype.isEmpty=function(){return d(this.replaysByZIndex_)},e.prototype.replay=function(t,e,i,r,n,o,s){var a=Object.keys(this.replaysByZIndex_).map(Number);a.sort(V),t.save(),this.clip(t,e);var h,l,u,p,c,d,f=o||Ea;for(h=0,l=a.length;h=n)for(r=n;rl[2];)O=b*++M,p=this.getTransform(e,O),f.replay(_,p,h,o,w),P-=b}if(ks(_,h,I/2,L/2),x&&this.dispatchRenderEvent(_,e,p),_!=t){if(m){var F=t.globalAlpha;t.globalAlpha=i.opacity,t.drawImage(_.canvas,-y,-v),t.globalAlpha=F}else t.drawImage(_.canvas,-y,-v);_.translate(-y,-v)}m||(_.globalAlpha=C)}d&&t.restore()},e.prototype.composeFrame=function(t,e,i){var r=this.getTransform(t,0);this.preCompose(i,t,r),this.compose(i,t,e),this.postCompose(i,t,e,r)},e.prototype.forEachFeatureAtCoordinate=function(t,e,i,r,n){if(this.replayGroup_){var s=e.viewState.resolution,a=e.viewState.rotation,h=this.getLayer(),l={};return this.replayGroup_.forEachFeatureAtCoordinate(t,s,a,i,{},function(t){var e=o(t);if(!(e in l))return l[e]=!0,r.call(n,t,h)},null)}},e.prototype.handleFontsChanged_=function(t){var e=this.getLayer();e.getVisible()&&this.replayGroup_&&e.changed()},e.prototype.handleStyleImageChange_=function(t){this.renderIfReadyAndVisible()},e.prototype.prepareFrame=function(t,e){var i=this.getLayer(),r=i.getSource(),n=t.viewHints[kn],o=t.viewHints[jn],s=i.getUpdateWhileAnimating(),a=i.getUpdateWhileInteracting();if(!this.dirty_&&!s&&n||!a&&o)return!0;var h=t.extent,l=t.viewState,u=l.projection,p=l.resolution,c=t.pixelRatio,d=i.getRevision(),f=i.getRenderBuffer(),_=i.getRenderOrder();void 0===_&&(_=Da);var g=et(h,f*p),y=l.projection.getExtent();if(r.getWrapX()&&l.projection.canWrapX()&&!ot(y,t.extent)){var v=Ot(y),m=Math.max(Ot(g)/2,v);g[0]=y[0]-m,g[2]=y[2]+m}if(!this.dirty_&&this.renderedResolution_==p&&this.renderedRevision_==d&&this.renderedRenderOrder_==_&&ot(this.renderedExtent_,g))return this.replayGroupChanged=!1,!0;this.replayGroup_=null,this.dirty_=!1;var x=new Aa(ja(p,c),g,p,c,r.getOverlaps(),this.declutterTree_,i.getRenderBuffer());r.loadFeatures(g,p,u);var E=function(t){var e,r=t.getStyleFunction()||i.getStyleFunction();if(r&&(e=r(t,p)),e){var n=this.renderFeature(t,p,c,e,x);this.dirty_=this.dirty_||n}}.bind(this);if(_){var S=[];r.forEachFeatureInExtent(g,function(t){S.push(t)}),S.sort(_);for(var T=0,C=S.length;T=0;--x){var E=g[x];if(E.getState()!=On.ABORT)for(var S=E.tileCoord,T=y.getTileCoordExtent(S,this.tmpExtent)[0]-E.extent[0],C=void 0,R=0,w=E.tileKeys.length;R radius + v_halfWidth) {\n if (u_strokeColor.a == 0.0) {\n gl_FragColor = u_fillColor;\n } else {\n gl_FragColor = u_strokeColor;\n }\n gl_FragColor.a = gl_FragColor.a - (dist - (radius + v_halfWidth));\n } else if (u_fillColor.a == 0.0) {\n // Hooray, no fill, just stroke. We can use real antialiasing.\n gl_FragColor = u_strokeColor;\n if (dist < radius - v_halfWidth) {\n gl_FragColor.a = gl_FragColor.a - (radius - v_halfWidth - dist);\n }\n } else {\n gl_FragColor = u_fillColor;\n float strokeDist = radius - v_halfWidth;\n float antialias = 2.0 * v_pixelRatio;\n if (dist > strokeDist) {\n gl_FragColor = u_strokeColor;\n } else if (dist >= strokeDist - antialias) {\n float step = smoothstep(strokeDist - antialias, strokeDist, dist);\n gl_FragColor = mix(u_fillColor, u_strokeColor, step);\n }\n }\n gl_FragColor.a = gl_FragColor.a * u_opacity;\n if (gl_FragColor.a <= 0.0) {\n discard;\n }\n}\n"),ch=new uh("varying vec2 v_center;\nvarying vec2 v_offset;\nvarying float v_halfWidth;\nvarying float v_pixelRatio;\n\n\nattribute vec2 a_position;\nattribute float a_instruction;\nattribute float a_radius;\n\nuniform mat4 u_projectionMatrix;\nuniform mat4 u_offsetScaleMatrix;\nuniform mat4 u_offsetRotateMatrix;\nuniform float u_lineWidth;\nuniform float u_pixelRatio;\n\nvoid main(void) {\n mat4 offsetMatrix = u_offsetScaleMatrix * u_offsetRotateMatrix;\n v_center = vec4(u_projectionMatrix * vec4(a_position, 0.0, 1.0)).xy;\n v_pixelRatio = u_pixelRatio;\n float lineWidth = u_lineWidth * u_pixelRatio;\n v_halfWidth = lineWidth / 2.0;\n if (lineWidth == 0.0) {\n lineWidth = 2.0 * u_pixelRatio;\n }\n vec2 offset;\n // Radius with anitaliasing (roughly).\n float radius = a_radius + 3.0 * u_pixelRatio;\n // Until we get gl_VertexID in WebGL, we store an instruction.\n if (a_instruction == 0.0) {\n // Offsetting the edges of the triangle by lineWidth / 2 is necessary, however\n // we should also leave some space for the antialiasing, thus we offset by lineWidth.\n offset = vec2(-1.0, 1.0);\n } else if (a_instruction == 1.0) {\n offset = vec2(-1.0, -1.0);\n } else if (a_instruction == 2.0) {\n offset = vec2(1.0, -1.0);\n } else {\n offset = vec2(1.0, 1.0);\n }\n\n gl_Position = u_projectionMatrix * vec4(a_position + offset * radius, 0.0, 1.0) +\n offsetMatrix * vec4(offset * lineWidth, 0.0, 0.0);\n v_offset = vec4(u_projectionMatrix * vec4(a_position.x + a_radius, a_position.y,\n 0.0, 1.0)).xy;\n\n if (distance(v_center, v_offset) > 20000.0) {\n gl_Position = vec4(v_center, 0.0, 1.0);\n }\n}\n\n\n"),dh=function(t,e){this.u_projectionMatrix=t.getUniformLocation(e,"u_projectionMatrix"),this.u_offsetScaleMatrix=t.getUniformLocation(e,"u_offsetScaleMatrix"),this.u_offsetRotateMatrix=t.getUniformLocation(e,"u_offsetRotateMatrix"),this.u_lineWidth=t.getUniformLocation(e,"u_lineWidth"),this.u_pixelRatio=t.getUniformLocation(e,"u_pixelRatio"),this.u_opacity=t.getUniformLocation(e,"u_opacity"),this.u_fillColor=t.getUniformLocation(e,"u_fillColor"),this.u_strokeColor=t.getUniformLocation(e,"u_strokeColor"),this.u_size=t.getUniformLocation(e,"u_size"),this.a_position=t.getAttribLocation(e,"a_position"),this.a_instruction=t.getAttribLocation(e,"a_instruction"),this.a_radius=t.getAttribLocation(e,"a_radius")};function fh(t,e){return t[0]=e[0],t[1]=e[1],t[4]=e[2],t[5]=e[3],t[12]=e[4],t[13]=e[5],t}var _h=function(t){function e(e,i){t.call(this),this.tolerance=e,this.maxExtent=i,this.origin=Tt(i),this.projectionMatrix_=[1,0,0,1,0,0],this.offsetRotateMatrix_=[1,0,0,1,0,0],this.offsetScaleMatrix_=[1,0,0,1,0,0],this.tmpMat4_=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],this.indices=[],this.indicesBuffer=null,this.startIndices=[],this.startIndicesFeature=[],this.vertices=[],this.verticesBuffer=null,this.lineStringReplay=void 0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getDeleteResourcesFunction=function(t){return r()},e.prototype.finish=function(t){r()},e.prototype.setUpProgram=function(t,e,i,n){return r()},e.prototype.shutDownProgram=function(t,e){r()},e.prototype.drawReplay=function(t,e,i,n){r()},e.prototype.drawHitDetectionReplayOneByOne=function(t,e,i,n,o){return r()},e.prototype.drawHitDetectionReplay=function(t,e,i,r,n,o){return n?this.drawHitDetectionReplayOneByOne(t,e,i,r,o):this.drawHitDetectionReplayAll(t,e,i,r)},e.prototype.drawHitDetectionReplayAll=function(t,e,i,r){t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT),this.drawReplay(t,e,i,!0);var n=r(null);return n||void 0},e.prototype.replay=function(t,e,i,r,n,o,s,a,h,l,u){var p,c,d,f,_,g,y,v,m=t.getGL();this.lineStringReplay&&(p=m.isEnabled(m.STENCIL_TEST),c=m.getParameter(m.STENCIL_FUNC),d=m.getParameter(m.STENCIL_VALUE_MASK),f=m.getParameter(m.STENCIL_REF),_=m.getParameter(m.STENCIL_WRITEMASK),g=m.getParameter(m.STENCIL_FAIL),y=m.getParameter(m.STENCIL_PASS_DEPTH_PASS),v=m.getParameter(m.STENCIL_PASS_DEPTH_FAIL),m.enable(m.STENCIL_TEST),m.clear(m.STENCIL_BUFFER_BIT),m.stencilMask(255),m.stencilFunc(m.ALWAYS,1,255),m.stencilOp(m.KEEP,m.KEEP,m.REPLACE),this.lineStringReplay.replay(t,e,i,r,n,o,s,a,h,l,u),m.stencilMask(0),m.stencilFunc(m.NOTEQUAL,1,255)),t.bindBuffer(34962,this.verticesBuffer),t.bindBuffer(34963,this.indicesBuffer);var x=this.setUpProgram(m,t,n,o),E=Fe(this.projectionMatrix_);je(E,2/(i*n[0]),2/(i*n[1])),ke(E,-r),Ue(E,-(e[0]-this.origin[0]),-(e[1]-this.origin[1]));var S=Fe(this.offsetScaleMatrix_);je(S,2/n[0],2/n[1]);var T,C=Fe(this.offsetRotateMatrix_);return 0!==r&&ke(C,-r),m.uniformMatrix4fv(x.u_projectionMatrix,!1,fh(this.tmpMat4_,E)),m.uniformMatrix4fv(x.u_offsetScaleMatrix,!1,fh(this.tmpMat4_,S)),m.uniformMatrix4fv(x.u_offsetRotateMatrix,!1,fh(this.tmpMat4_,C)),m.uniform1f(x.u_opacity,s),void 0===h?this.drawReplay(m,t,a,!1):T=this.drawHitDetectionReplay(m,t,a,h,l,u),this.shutDownProgram(m,x),this.lineStringReplay&&(p||m.disable(m.STENCIL_TEST),m.clear(m.STENCIL_BUFFER_BIT),m.stencilFunc(c,f,d),m.stencilMask(_),m.stencilOp(g,v,y)),T},e.prototype.drawElements=function(t,e,i,r){var n=e.hasOESElementIndexUint?5125:5123,o=r-i,s=i*(e.hasOESElementIndexUint?4:2);t.drawElements(4,o,n,s)},e}(Vs),gh=[0,0,0,1],yh=[],vh=[0,0,0,1],mh=Number.EPSILON||2.220446049250313e-16,xh=function(t,e,i,r,n,o){var s=(i-t)*(o-e)-(n-t)*(r-e);return s<=mh&&s>=-mh?void 0:s>0},Eh=35044,Sh=function(t,e){this.arr_=void 0!==t?t:[],this.usage_=void 0!==e?e:Eh};Sh.prototype.getArray=function(){return this.arr_},Sh.prototype.getUsage=function(){return this.usage_};var Th=Sh,Ch=function(t){function e(e,i){t.call(this,e,i),this.defaultLocations_=null,this.styles_=[],this.styleIndices_=[],this.radius_=0,this.state_={fillColor:null,strokeColor:null,lineDash:null,lineDashOffset:void 0,lineWidth:void 0,changed:!1}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawCoordinates_=function(t,e,i,r){var n,o,s=this.vertices.length,a=this.indices.length,h=s/4;for(n=e,o=i;n0&&(this.styles_=[]),this.vertices=null,this.indices=null},e.prototype.getDeleteResourcesFunction=function(t){var e=this.verticesBuffer,i=this.indicesBuffer;return function(){t.deleteBuffer(e),t.deleteBuffer(i)}},e.prototype.setUpProgram=function(t,e,i,r){var n,o=e.getProgram(ph,ch);return this.defaultLocations_?n=this.defaultLocations_:(n=new dh(t,o),this.defaultLocations_=n),e.useProgram(o),t.enableVertexAttribArray(n.a_position),t.vertexAttribPointer(n.a_position,2,5126,!1,16,0),t.enableVertexAttribArray(n.a_instruction),t.vertexAttribPointer(n.a_instruction,1,5126,!1,16,8),t.enableVertexAttribArray(n.a_radius),t.vertexAttribPointer(n.a_radius,1,5126,!1,16,12),t.uniform2fv(n.u_size,i),t.uniform1f(n.u_pixelRatio,r),n},e.prototype.shutDownProgram=function(t,e){t.disableVertexAttribArray(e.a_position),t.disableVertexAttribArray(e.a_instruction),t.disableVertexAttribArray(e.a_radius)},e.prototype.drawReplay=function(t,e,i,r){var n,o,s,a;if(d(i))for(s=this.startIndices[this.startIndices.length-1],n=this.styleIndices_.length-1;n>=0;--n)o=this.styleIndices_[n],a=this.styles_[n],this.setFillStyle_(t,a[0]),this.setStrokeStyle_(t,a[1],a[2]),this.drawElements(t,e,o,s),s=o;else this.drawReplaySkipping_(t,e,i)},e.prototype.drawHitDetectionReplayOneByOne=function(t,e,i,r,n){var s,a,h,l,u,p,c;for(c=this.startIndices.length-2,h=this.startIndices[c+1],s=this.styleIndices_.length-1;s>=0;--s)for(l=this.styles_[s],this.setFillStyle_(t,l[0]),this.setStrokeStyle_(t,l[1],l[2]),u=this.styleIndices_[s];c>=0&&this.startIndices[c]>=u;){if(a=this.startIndices[c],void 0===i[o(p=this.startIndicesFeature[c])]&&p.getGeometry()&&(void 0===n||Pt(n,p.getGeometry().getExtent()))){t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT),this.drawElements(t,e,a,h);var d=r(p);if(d)return d}c--,h=a}},e.prototype.drawReplaySkipping_=function(t,e,i){var r,n,s,a,h,l,u;for(l=this.startIndices.length-2,s=n=this.startIndices[l+1],r=this.styleIndices_.length-1;r>=0;--r){for(a=this.styles_[r],this.setFillStyle_(t,a[0]),this.setStrokeStyle_(t,a[1],a[2]),h=this.styleIndices_[r];l>=0&&this.startIndices[l]>=h;)u=this.startIndices[l],i[o(this.startIndicesFeature[l])]&&(n!==s&&this.drawElements(t,e,n,s),s=u),l--,n=u;n!==s&&this.drawElements(t,e,n,s),n=s=h}},e.prototype.setFillStyle_=function(t,e){t.uniform4fv(this.defaultLocations_.u_fillColor,e)},e.prototype.setStrokeStyle_=function(t,e,i){t.uniform4fv(this.defaultLocations_.u_strokeColor,e),t.uniform1f(this.defaultLocations_.u_lineWidth,i)},e.prototype.setFillStrokeStyle=function(t,e){var i,r;if(e){var n=e.getLineDash();this.state_.lineDash=n||yh;var o=e.getLineDashOffset();this.state_.lineDashOffset=o||0,i=(i=e.getColor())instanceof CanvasGradient||i instanceof CanvasPattern?vh:_r(i).map(function(t,e){return 3!=e?t/255:t})||vh,r=void 0!==(r=e.getWidth())?r:1}else i=[0,0,0,0],r=0;var s=t?t.getColor():[0,0,0,0];s=s instanceof CanvasGradient||s instanceof CanvasPattern?gh:_r(s).map(function(t,e){return 3!=e?t/255:t})||gh,this.state_.strokeColor&&Z(this.state_.strokeColor,i)&&this.state_.fillColor&&Z(this.state_.fillColor,s)&&this.state_.lineWidth===r||(this.state_.changed=!0,this.state_.fillColor=s,this.state_.strokeColor=i,this.state_.lineWidth=r,this.styles_.push([s,i,r]))},e}(_h),Rh=new lh("precision mediump float;\nvarying vec2 v_texCoord;\nvarying float v_opacity;\n\nuniform float u_opacity;\nuniform sampler2D u_image;\n\nvoid main(void) {\n vec4 texColor = texture2D(u_image, v_texCoord);\n gl_FragColor.rgb = texColor.rgb;\n float alpha = texColor.a * v_opacity * u_opacity;\n if (alpha == 0.0) {\n discard;\n }\n gl_FragColor.a = alpha;\n}\n"),wh=new uh("varying vec2 v_texCoord;\nvarying float v_opacity;\n\nattribute vec2 a_position;\nattribute vec2 a_texCoord;\nattribute vec2 a_offsets;\nattribute float a_opacity;\nattribute float a_rotateWithView;\n\nuniform mat4 u_projectionMatrix;\nuniform mat4 u_offsetScaleMatrix;\nuniform mat4 u_offsetRotateMatrix;\n\nvoid main(void) {\n mat4 offsetMatrix = u_offsetScaleMatrix;\n if (a_rotateWithView == 1.0) {\n offsetMatrix = u_offsetScaleMatrix * u_offsetRotateMatrix;\n }\n vec4 offsets = offsetMatrix * vec4(a_offsets, 0.0, 0.0);\n gl_Position = u_projectionMatrix * vec4(a_position, 0.0, 1.0) + offsets;\n v_texCoord = a_texCoord;\n v_opacity = a_opacity;\n}\n\n\n"),Ih=function(t,e){this.u_projectionMatrix=t.getUniformLocation(e,"u_projectionMatrix"),this.u_offsetScaleMatrix=t.getUniformLocation(e,"u_offsetScaleMatrix"),this.u_offsetRotateMatrix=t.getUniformLocation(e,"u_offsetRotateMatrix"),this.u_opacity=t.getUniformLocation(e,"u_opacity"),this.u_image=t.getUniformLocation(e,"u_image"),this.a_position=t.getAttribLocation(e,"a_position"),this.a_texCoord=t.getAttribLocation(e,"a_texCoord"),this.a_offsets=t.getAttribLocation(e,"a_offsets"),this.a_opacity=t.getAttribLocation(e,"a_opacity"),this.a_rotateWithView=t.getAttribLocation(e,"a_rotateWithView")},Lh={LOST:"webglcontextlost",RESTORED:"webglcontextrestored"};function Oh(t,e,i){var r=t.createTexture();return t.bindTexture(t.TEXTURE_2D,r),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MAG_FILTER,t.LINEAR),t.texParameteri(t.TEXTURE_2D,t.TEXTURE_MIN_FILTER,t.LINEAR),void 0!==e&&t.texParameteri(eh,$a,e),void 0!==i&&t.texParameteri(eh,th,i),r}function Ph(t,e,i,r,n){var o=Oh(t,r,n);return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,e,i,0,t.RGBA,t.UNSIGNED_BYTE,null),o}function bh(t,e,i,r){var n=Oh(t,i,r);return t.texImage2D(t.TEXTURE_2D,0,t.RGBA,t.RGBA,t.UNSIGNED_BYTE,e),n}var Mh=function(t){function e(e,i){t.call(this),this.canvas_=e,this.gl_=i,this.bufferCache_={},this.shaderCache_={},this.programCache_={},this.currentProgram_=null,this.hitDetectionFramebuffer_=null,this.hitDetectionTexture_=null,this.hitDetectionRenderbuffer_=null,this.hasOESElementIndexUint=X(oh,"OES_element_index_uint"),this.hasOESElementIndexUint&&i.getExtension("OES_element_index_uint"),v(this.canvas_,Lh.LOST,this.handleWebGLContextLost,this),v(this.canvas_,Lh.RESTORED,this.handleWebGLContextRestored,this)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.bindBuffer=function(t,e){var i=this.getGL(),r=e.getArray(),n=o(e);if(n in this.bufferCache_){var s=this.bufferCache_[n];i.bindBuffer(t,s.buffer)}else{var a,h=i.createBuffer();i.bindBuffer(t,h),34962==t?a=new Float32Array(r):34963==t&&(a=this.hasOESElementIndexUint?new Uint32Array(r):new Uint16Array(r)),i.bufferData(t,a,e.getUsage()),this.bufferCache_[n]={buf:e,buffer:h}}},e.prototype.deleteBuffer=function(t){var e=this.getGL(),i=o(t),r=this.bufferCache_[i];e.isContextLost()||e.deleteBuffer(r.buffer),delete this.bufferCache_[i]},e.prototype.disposeInternal=function(){S(this.canvas_);var t=this.getGL();if(!t.isContextLost()){for(var e in this.bufferCache_)t.deleteBuffer(this.bufferCache_[e].buffer);for(var i in this.programCache_)t.deleteProgram(this.programCache_[i]);for(var r in this.shaderCache_)t.deleteShader(this.shaderCache_[r]);t.deleteFramebuffer(this.hitDetectionFramebuffer_),t.deleteRenderbuffer(this.hitDetectionRenderbuffer_),t.deleteTexture(this.hitDetectionTexture_)}},e.prototype.getCanvas=function(){return this.canvas_},e.prototype.getGL=function(){return this.gl_},e.prototype.getHitDetectionFramebuffer=function(){return this.hitDetectionFramebuffer_||this.initHitDetectionFramebuffer_(),this.hitDetectionFramebuffer_},e.prototype.getShader=function(t){var e=o(t);if(e in this.shaderCache_)return this.shaderCache_[e];var i=this.getGL(),r=i.createShader(t.getType());return i.shaderSource(r,t.getSource()),i.compileShader(r),this.shaderCache_[e]=r,r},e.prototype.getProgram=function(t,e){var i=o(t)+"/"+o(e);if(i in this.programCache_)return this.programCache_[i];var r=this.getGL(),n=r.createProgram();return r.attachShader(n,this.getShader(t)),r.attachShader(n,this.getShader(e)),r.linkProgram(n),this.programCache_[i]=n,n},e.prototype.handleWebGLContextLost=function(){p(this.bufferCache_),p(this.shaderCache_),p(this.programCache_),this.currentProgram_=null,this.hitDetectionFramebuffer_=null,this.hitDetectionTexture_=null,this.hitDetectionRenderbuffer_=null},e.prototype.handleWebGLContextRestored=function(){},e.prototype.initHitDetectionFramebuffer_=function(){var t=this.gl_,e=t.createFramebuffer();t.bindFramebuffer(t.FRAMEBUFFER,e);var i=Ph(t,1,1),r=t.createRenderbuffer();t.bindRenderbuffer(t.RENDERBUFFER,r),t.renderbufferStorage(t.RENDERBUFFER,t.DEPTH_COMPONENT16,1,1),t.framebufferTexture2D(t.FRAMEBUFFER,t.COLOR_ATTACHMENT0,t.TEXTURE_2D,i,0),t.framebufferRenderbuffer(t.FRAMEBUFFER,t.DEPTH_ATTACHMENT,t.RENDERBUFFER,r),t.bindTexture(t.TEXTURE_2D,null),t.bindRenderbuffer(t.RENDERBUFFER,null),t.bindFramebuffer(t.FRAMEBUFFER,null),this.hitDetectionFramebuffer_=e,this.hitDetectionTexture_=i,this.hitDetectionRenderbuffer_=r},e.prototype.useProgram=function(t){return t!=this.currentProgram_&&(this.getGL().useProgram(t),this.currentProgram_=t,!0)},e}(C),Fh=function(t){function e(e,i){t.call(this,e,i),this.anchorX=void 0,this.anchorY=void 0,this.groupIndices=[],this.hitDetectionGroupIndices=[],this.height=void 0,this.imageHeight=void 0,this.imageWidth=void 0,this.defaultLocations=null,this.opacity=void 0,this.originX=void 0,this.originY=void 0,this.rotateWithView=void 0,this.rotation=void 0,this.scale=void 0,this.width=void 0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getDeleteResourcesFunction=function(t){var e=this.verticesBuffer,i=this.indicesBuffer,r=this.getTextures(!0),n=t.getGL();return function(){var o,s;if(!n.isContextLost())for(o=0,s=r.length;o0?n[s-1]:0,u=n[s],p=l,c=l;h=0;--s)for(t.bindTexture(eh,c[s]),a=s>0?this.hitDetectionGroupIndices[s-1]:0,l=this.hitDetectionGroupIndices[s];p>=0&&this.startIndices[p]>=a;){if(h=this.startIndices[p],void 0===i[o(u=this.startIndicesFeature[p])]&&u.getGeometry()&&(void 0===n||Pt(n,u.getGeometry().getExtent()))){t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT),this.drawElements(t,e,h,l);var d=r(u);if(d)return d}l=h,p--}},e.prototype.finish=function(t){this.anchorX=void 0,this.anchorY=void 0,this.height=void 0,this.imageHeight=void 0,this.imageWidth=void 0,this.indices=null,this.opacity=void 0,this.originX=void 0,this.originY=void 0,this.rotateWithView=void 0,this.rotation=void 0,this.scale=void 0,this.vertices=null,this.width=void 0},e.prototype.getTextures=function(t){return r()},e.prototype.getHitDetectionTextures=function(){return r()},e}(_h),Ah=function(t){function e(e,i){t.call(this,e,i),this.images_=[],this.hitDetectionImages_=[],this.textures_=[],this.hitDetectionTextures_=[]}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawMultiPoint=function(t,e){this.startIndices.push(this.indices.length),this.startIndicesFeature.push(e);var i=t.getFlatCoordinates(),r=t.getStride();this.drawCoordinates(i,0,i.length,r)},e.prototype.drawPoint=function(t,e){this.startIndices.push(this.indices.length),this.startIndicesFeature.push(e);var i=t.getFlatCoordinates(),r=t.getStride();this.drawCoordinates(i,0,i.length,r)},e.prototype.finish=function(e){var i=e.getGL();this.groupIndices.push(this.indices.length),this.hitDetectionGroupIndices.push(this.indices.length),this.verticesBuffer=new Th(this.vertices);var r=this.indices;this.indicesBuffer=new Th(r);var n={};this.createTextures(this.textures_,this.images_,n,i),this.createTextures(this.hitDetectionTextures_,this.hitDetectionImages_,n,i),this.images_=null,this.hitDetectionImages_=null,t.prototype.finish.call(this,e)},e.prototype.setImageStyle=function(t){var e=t.getAnchor(),i=t.getImage(1),r=t.getImageSize(),n=t.getHitDetectionImage(1),s=t.getOpacity(),a=t.getOrigin(),h=t.getRotateWithView(),l=t.getRotation(),u=t.getSize(),p=t.getScale();0===this.images_.length?this.images_.push(i):o(this.images_[this.images_.length-1])!=o(i)&&(this.groupIndices.push(this.indices.length),this.images_.push(i)),0===this.hitDetectionImages_.length?this.hitDetectionImages_.push(n):o(this.hitDetectionImages_[this.hitDetectionImages_.length-1])!=o(n)&&(this.hitDetectionGroupIndices.push(this.indices.length),this.hitDetectionImages_.push(n)),this.anchorX=e[0],this.anchorY=e[1],this.height=u[1],this.imageHeight=r[1],this.imageWidth=r[0],this.opacity=s,this.originX=a[0],this.originY=a[1],this.rotation=l,this.rotateWithView=h,this.scale=p,this.width=u[0]},e.prototype.getTextures=function(t){return t?this.textures_.concat(this.hitDetectionTextures_):this.textures_},e.prototype.getHitDetectionTextures=function(){return this.hitDetectionTextures_},e}(Fh);function Nh(t,e,i,r){var n=i-r;return t[e]===t[n]&&t[e+1]===t[n+1]&&(i-e)/r>3&&!!Ke(t,e,i,r)}var Gh=new lh("precision mediump float;\nvarying float v_round;\nvarying vec2 v_roundVertex;\nvarying float v_halfWidth;\n\n\n\nuniform float u_opacity;\nuniform vec4 u_color;\nuniform vec2 u_size;\nuniform float u_pixelRatio;\n\nvoid main(void) {\n if (v_round > 0.0) {\n vec2 windowCoords = vec2((v_roundVertex.x + 1.0) / 2.0 * u_size.x * u_pixelRatio,\n (v_roundVertex.y + 1.0) / 2.0 * u_size.y * u_pixelRatio);\n if (length(windowCoords - gl_FragCoord.xy) > v_halfWidth * u_pixelRatio) {\n discard;\n }\n }\n gl_FragColor = u_color;\n float alpha = u_color.a * u_opacity;\n if (alpha == 0.0) {\n discard;\n }\n gl_FragColor.a = alpha;\n}\n"),Dh=new uh("varying float v_round;\nvarying vec2 v_roundVertex;\nvarying float v_halfWidth;\n\n\nattribute vec2 a_lastPos;\nattribute vec2 a_position;\nattribute vec2 a_nextPos;\nattribute float a_direction;\n\nuniform mat4 u_projectionMatrix;\nuniform mat4 u_offsetScaleMatrix;\nuniform mat4 u_offsetRotateMatrix;\nuniform float u_lineWidth;\nuniform float u_miterLimit;\n\nbool nearlyEquals(in float value, in float ref) {\n float epsilon = 0.000000000001;\n return value >= ref - epsilon && value <= ref + epsilon;\n}\n\nvoid alongNormal(out vec2 offset, in vec2 nextP, in float turnDir, in float direction) {\n vec2 dirVect = nextP - a_position;\n vec2 normal = normalize(vec2(-turnDir * dirVect.y, turnDir * dirVect.x));\n offset = u_lineWidth / 2.0 * normal * direction;\n}\n\nvoid miterUp(out vec2 offset, out float round, in bool isRound, in float direction) {\n float halfWidth = u_lineWidth / 2.0;\n vec2 tangent = normalize(normalize(a_nextPos - a_position) + normalize(a_position - a_lastPos));\n vec2 normal = vec2(-tangent.y, tangent.x);\n vec2 dirVect = a_nextPos - a_position;\n vec2 tmpNormal = normalize(vec2(-dirVect.y, dirVect.x));\n float miterLength = abs(halfWidth / dot(normal, tmpNormal));\n offset = normal * direction * miterLength;\n round = 0.0;\n if (isRound) {\n round = 1.0;\n } else if (miterLength > u_miterLimit + u_lineWidth) {\n offset = halfWidth * tmpNormal * direction;\n }\n}\n\nbool miterDown(out vec2 offset, in vec4 projPos, in mat4 offsetMatrix, in float direction) {\n bool degenerate = false;\n vec2 tangent = normalize(normalize(a_nextPos - a_position) + normalize(a_position - a_lastPos));\n vec2 normal = vec2(-tangent.y, tangent.x);\n vec2 dirVect = a_lastPos - a_position;\n vec2 tmpNormal = normalize(vec2(-dirVect.y, dirVect.x));\n vec2 longOffset, shortOffset, longVertex;\n vec4 shortProjVertex;\n float halfWidth = u_lineWidth / 2.0;\n if (length(a_nextPos - a_position) > length(a_lastPos - a_position)) {\n longOffset = tmpNormal * direction * halfWidth;\n shortOffset = normalize(vec2(dirVect.y, -dirVect.x)) * direction * halfWidth;\n longVertex = a_nextPos;\n shortProjVertex = u_projectionMatrix * vec4(a_lastPos, 0.0, 1.0);\n } else {\n shortOffset = tmpNormal * direction * halfWidth;\n longOffset = normalize(vec2(dirVect.y, -dirVect.x)) * direction * halfWidth;\n longVertex = a_lastPos;\n shortProjVertex = u_projectionMatrix * vec4(a_nextPos, 0.0, 1.0);\n }\n //Intersection algorithm based on theory by Paul Bourke (http://paulbourke.net/geometry/pointlineplane/).\n vec4 p1 = u_projectionMatrix * vec4(longVertex, 0.0, 1.0) + offsetMatrix * vec4(longOffset, 0.0, 0.0);\n vec4 p2 = projPos + offsetMatrix * vec4(longOffset, 0.0, 0.0);\n vec4 p3 = shortProjVertex + offsetMatrix * vec4(-shortOffset, 0.0, 0.0);\n vec4 p4 = shortProjVertex + offsetMatrix * vec4(shortOffset, 0.0, 0.0);\n float denom = (p4.y - p3.y) * (p2.x - p1.x) - (p4.x - p3.x) * (p2.y - p1.y);\n float firstU = ((p4.x - p3.x) * (p1.y - p3.y) - (p4.y - p3.y) * (p1.x - p3.x)) / denom;\n float secondU = ((p2.x - p1.x) * (p1.y - p3.y) - (p2.y - p1.y) * (p1.x - p3.x)) / denom;\n float epsilon = 0.000000000001;\n if (firstU > epsilon && firstU < 1.0 - epsilon && secondU > epsilon && secondU < 1.0 - epsilon) {\n shortProjVertex.x = p1.x + firstU * (p2.x - p1.x);\n shortProjVertex.y = p1.y + firstU * (p2.y - p1.y);\n offset = shortProjVertex.xy;\n degenerate = true;\n } else {\n float miterLength = abs(halfWidth / dot(normal, tmpNormal));\n offset = normal * direction * miterLength;\n }\n return degenerate;\n}\n\nvoid squareCap(out vec2 offset, out float round, in bool isRound, in vec2 nextP,\n in float turnDir, in float direction) {\n round = 0.0;\n vec2 dirVect = a_position - nextP;\n vec2 firstNormal = normalize(dirVect);\n vec2 secondNormal = vec2(turnDir * firstNormal.y * direction, -turnDir * firstNormal.x * direction);\n vec2 hypotenuse = normalize(firstNormal - secondNormal);\n vec2 normal = vec2(turnDir * hypotenuse.y * direction, -turnDir * hypotenuse.x * direction);\n float length = sqrt(v_halfWidth * v_halfWidth * 2.0);\n offset = normal * length;\n if (isRound) {\n round = 1.0;\n }\n}\n\nvoid main(void) {\n bool degenerate = false;\n float direction = float(sign(a_direction));\n mat4 offsetMatrix = u_offsetScaleMatrix * u_offsetRotateMatrix;\n vec2 offset;\n vec4 projPos = u_projectionMatrix * vec4(a_position, 0.0, 1.0);\n bool round = nearlyEquals(mod(a_direction, 2.0), 0.0);\n\n v_round = 0.0;\n v_halfWidth = u_lineWidth / 2.0;\n v_roundVertex = projPos.xy;\n\n if (nearlyEquals(mod(a_direction, 3.0), 0.0) || nearlyEquals(mod(a_direction, 17.0), 0.0)) {\n alongNormal(offset, a_nextPos, 1.0, direction);\n } else if (nearlyEquals(mod(a_direction, 5.0), 0.0) || nearlyEquals(mod(a_direction, 13.0), 0.0)) {\n alongNormal(offset, a_lastPos, -1.0, direction);\n } else if (nearlyEquals(mod(a_direction, 23.0), 0.0)) {\n miterUp(offset, v_round, round, direction);\n } else if (nearlyEquals(mod(a_direction, 19.0), 0.0)) {\n degenerate = miterDown(offset, projPos, offsetMatrix, direction);\n } else if (nearlyEquals(mod(a_direction, 7.0), 0.0)) {\n squareCap(offset, v_round, round, a_nextPos, 1.0, direction);\n } else if (nearlyEquals(mod(a_direction, 11.0), 0.0)) {\n squareCap(offset, v_round, round, a_lastPos, -1.0, direction);\n }\n if (!degenerate) {\n vec4 offsets = offsetMatrix * vec4(offset, 0.0, 0.0);\n gl_Position = projPos + offsets;\n } else {\n gl_Position = vec4(offset, 0.0, 1.0);\n }\n}\n\n\n"),kh=function(t,e){this.u_projectionMatrix=t.getUniformLocation(e,"u_projectionMatrix"),this.u_offsetScaleMatrix=t.getUniformLocation(e,"u_offsetScaleMatrix"),this.u_offsetRotateMatrix=t.getUniformLocation(e,"u_offsetRotateMatrix"),this.u_lineWidth=t.getUniformLocation(e,"u_lineWidth"),this.u_miterLimit=t.getUniformLocation(e,"u_miterLimit"),this.u_opacity=t.getUniformLocation(e,"u_opacity"),this.u_color=t.getUniformLocation(e,"u_color"),this.u_size=t.getUniformLocation(e,"u_size"),this.u_pixelRatio=t.getUniformLocation(e,"u_pixelRatio"),this.a_lastPos=t.getAttribLocation(e,"a_lastPos"),this.a_position=t.getAttribLocation(e,"a_position"),this.a_nextPos=t.getAttribLocation(e,"a_nextPos"),this.a_direction=t.getAttribLocation(e,"a_direction")},jh=3,Uh=5,Yh=7,Bh=11,Vh=13,Xh=17,zh=19,Wh=23,Kh=function(t){function e(e,i){t.call(this,e,i),this.defaultLocations_=null,this.styles_=[],this.styleIndices_=[],this.state_={strokeColor:null,lineCap:void 0,lineDash:null,lineDashOffset:void 0,lineJoin:void 0,lineWidth:void 0,miterLimit:void 0,changed:!1}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawCoordinates_=function(t,e,i,r){var n,o,s,a,h,l,u,p,c=this.vertices.length,d=this.indices.length,f="bevel"===this.state_.lineJoin?0:"miter"===this.state_.lineJoin?1:2,_="butt"===this.state_.lineCap?0:"square"===this.state_.lineCap?1:2,g=Nh(t,e,i,r),y=d,v=1;for(n=e,o=i;ne&&(this.indices[d++]=h,this.indices[d++]=y-1,this.indices[d++]=y,this.indices[d++]=h+2,this.indices[d++]=h,this.indices[d++]=v*a>0?y:y-1),this.indices[d++]=h,this.indices[d++]=h+2,this.indices[d++]=h+1,y=h+2,v=a,f&&(c=this.addVertices_(l,u,p,a*Wh*f,c),this.indices[d++]=h+1,this.indices[d++]=h+3,this.indices[d++]=h)}g&&(h=h||c/7,a=Si([l[0],l[1],u[0],u[1],p[0],p[1]],0,6,2)?1:-1,c=this.addVertices_(l,u,p,a*Vh*(f||1),c),c=this.addVertices_(l,u,p,-a*zh*(f||1),c),this.indices[d++]=h,this.indices[d++]=y-1,this.indices[d++]=y,this.indices[d++]=h+1,this.indices[d++]=h,this.indices[d++]=v*a>0?y:y-1)},e.prototype.addVertices_=function(t,e,i,r,n){return this.vertices[n++]=t[0],this.vertices[n++]=t[1],this.vertices[n++]=e[0],this.vertices[n++]=e[1],this.vertices[n++]=i[0],this.vertices[n++]=i[1],this.vertices[n++]=r,n},e.prototype.isValid_=function(t,e,i,r){var n=i-e;return!(n<2*r)&&(n!==2*r||!Z([t[e],t[e+1]],[t[e+r],t[e+r+1]]))},e.prototype.drawLineString=function(t,e){var i=t.getFlatCoordinates(),r=t.getStride();this.isValid_(i,0,i.length,r)&&(i=Dt(i,0,i.length,r,-this.origin[0],-this.origin[1]),this.state_.changed&&(this.styleIndices_.push(this.indices.length),this.state_.changed=!1),this.startIndices.push(this.indices.length),this.startIndicesFeature.push(e),this.drawCoordinates_(i,0,i.length,r))},e.prototype.drawMultiLineString=function(t,e){var i=this.indices.length,r=t.getEnds();r.unshift(0);var n,o,s=t.getFlatCoordinates(),a=t.getStride();if(r.length>1)for(n=1,o=r.length;ni&&(this.startIndices.push(i),this.startIndicesFeature.push(e),this.state_.changed&&(this.styleIndices_.push(i),this.state_.changed=!1))},e.prototype.drawPolygonCoordinates=function(t,e,i){var r,n;if(Nh(t,0,t.length,i)||(t.push(t[0]),t.push(t[1])),this.drawCoordinates_(t,0,t.length,i),e.length)for(r=0,n=e.length;r0&&(this.styles_=[]),this.vertices=null,this.indices=null},e.prototype.getDeleteResourcesFunction=function(t){var e=this.verticesBuffer,i=this.indicesBuffer;return function(){t.deleteBuffer(e),t.deleteBuffer(i)}},e.prototype.setUpProgram=function(t,e,i,r){var n,o=e.getProgram(Gh,Dh);return this.defaultLocations_?n=this.defaultLocations_:(n=new kh(t,o),this.defaultLocations_=n),e.useProgram(o),t.enableVertexAttribArray(n.a_lastPos),t.vertexAttribPointer(n.a_lastPos,2,5126,!1,28,0),t.enableVertexAttribArray(n.a_position),t.vertexAttribPointer(n.a_position,2,5126,!1,28,8),t.enableVertexAttribArray(n.a_nextPos),t.vertexAttribPointer(n.a_nextPos,2,5126,!1,28,16),t.enableVertexAttribArray(n.a_direction),t.vertexAttribPointer(n.a_direction,1,5126,!1,28,24),t.uniform2fv(n.u_size,i),t.uniform1f(n.u_pixelRatio,r),n},e.prototype.shutDownProgram=function(t,e){t.disableVertexAttribArray(e.a_lastPos),t.disableVertexAttribArray(e.a_position),t.disableVertexAttribArray(e.a_nextPos),t.disableVertexAttribArray(e.a_direction)},e.prototype.drawReplay=function(t,e,i,r){var n,o,s,a,h=t.getParameter(t.DEPTH_FUNC),l=t.getParameter(t.DEPTH_WRITEMASK);if(r||(t.enable(t.DEPTH_TEST),t.depthMask(!0),t.depthFunc(t.NOTEQUAL)),d(i))for(s=this.startIndices[this.startIndices.length-1],n=this.styleIndices_.length-1;n>=0;--n)o=this.styleIndices_[n],a=this.styles_[n],this.setStrokeStyle_(t,a[0],a[1],a[2]),this.drawElements(t,e,o,s),t.clear(t.DEPTH_BUFFER_BIT),s=o;else this.drawReplaySkipping_(t,e,i);r||(t.disable(t.DEPTH_TEST),t.clear(t.DEPTH_BUFFER_BIT),t.depthMask(l),t.depthFunc(h))},e.prototype.drawReplaySkipping_=function(t,e,i){var r,n,s,a,h,l,u;for(l=this.startIndices.length-2,s=n=this.startIndices[l+1],r=this.styleIndices_.length-1;r>=0;--r){for(a=this.styles_[r],this.setStrokeStyle_(t,a[0],a[1],a[2]),h=this.styleIndices_[r];l>=0&&this.startIndices[l]>=h;)u=this.startIndices[l],i[o(this.startIndicesFeature[l])]&&(n!==s&&(this.drawElements(t,e,n,s),t.clear(t.DEPTH_BUFFER_BIT)),s=u),l--,n=u;n!==s&&(this.drawElements(t,e,n,s),t.clear(t.DEPTH_BUFFER_BIT)),n=s=h}},e.prototype.drawHitDetectionReplayOneByOne=function(t,e,i,r,n){var s,a,h,l,u,p,c;for(c=this.startIndices.length-2,h=this.startIndices[c+1],s=this.styleIndices_.length-1;s>=0;--s)for(l=this.styles_[s],this.setStrokeStyle_(t,l[0],l[1],l[2]),u=this.styleIndices_[s];c>=0&&this.startIndices[c]>=u;){if(a=this.startIndices[c],void 0===i[o(p=this.startIndicesFeature[c])]&&p.getGeometry()&&(void 0===n||Pt(n,p.getGeometry().getExtent()))){t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT),this.drawElements(t,e,a,h);var d=r(p);if(d)return d}c--,h=a}},e.prototype.setStrokeStyle_=function(t,e,i,r){t.uniform4fv(this.defaultLocations_.u_color,e),t.uniform1f(this.defaultLocations_.u_lineWidth,i),t.uniform1f(this.defaultLocations_.u_miterLimit,r)},e.prototype.setFillStrokeStyle=function(t,e){var i=e.getLineCap();this.state_.lineCap=void 0!==i?i:"round";var r=e.getLineDash();this.state_.lineDash=r||yh;var n=e.getLineDashOffset();this.state_.lineDashOffset=n||0;var o=e.getLineJoin();this.state_.lineJoin=void 0!==o?o:"round";var s=e.getColor();s=s instanceof CanvasGradient||s instanceof CanvasPattern?vh:_r(s).map(function(t,e){return 3!=e?t/255:t})||vh;var a=e.getWidth();a=void 0!==a?a:1;var h=e.getMiterLimit();h=void 0!==h?h:10,this.state_.strokeColor&&Z(this.state_.strokeColor,s)&&this.state_.lineWidth===a&&this.state_.miterLimit===h||(this.state_.changed=!0,this.state_.strokeColor=s,this.state_.lineWidth=a,this.state_.miterLimit=h,this.styles_.push([s,a,h]))},e}(_h),Hh=new lh("precision mediump float;\n\n\n\nuniform vec4 u_color;\nuniform float u_opacity;\n\nvoid main(void) {\n gl_FragColor = u_color;\n float alpha = u_color.a * u_opacity;\n if (alpha == 0.0) {\n discard;\n }\n gl_FragColor.a = alpha;\n}\n"),Zh=new uh("\n\nattribute vec2 a_position;\n\nuniform mat4 u_projectionMatrix;\nuniform mat4 u_offsetScaleMatrix;\nuniform mat4 u_offsetRotateMatrix;\n\nvoid main(void) {\n gl_Position = u_projectionMatrix * vec4(a_position, 0.0, 1.0);\n}\n\n\n"),qh=function(t,e){this.u_projectionMatrix=t.getUniformLocation(e,"u_projectionMatrix"),this.u_offsetScaleMatrix=t.getUniformLocation(e,"u_offsetScaleMatrix"),this.u_offsetRotateMatrix=t.getUniformLocation(e,"u_offsetRotateMatrix"),this.u_color=t.getUniformLocation(e,"u_color"),this.u_opacity=t.getUniformLocation(e,"u_opacity"),this.a_position=t.getAttribLocation(e,"a_position")},Jh=function(t){this.first_,this.last_,this.head_,this.circular_=void 0===t||t,this.length_=0};Jh.prototype.insertItem=function(t){var e={prev:void 0,next:void 0,data:t},i=this.head_;if(i){var r=i.next;e.prev=i,e.next=r,i.next=e,r&&(r.prev=e),i===this.last_&&(this.last_=e)}else this.first_=e,this.last_=e,this.circular_&&(e.next=e,e.prev=e);this.head_=e,this.length_++},Jh.prototype.removeItem=function(){var t=this.head_;if(t){var e=t.next,i=t.prev;e&&(e.prev=i),i&&(i.next=e),this.head_=e||i,this.first_===this.last_?(this.head_=void 0,this.first_=void 0,this.last_=void 0):this.first_===t?this.first_=this.head_:this.last_===t&&(this.last_=i?this.head_.prev:this.head_),this.length_--}},Jh.prototype.firstItem=function(){if(this.head_=this.first_,this.head_)return this.head_.data},Jh.prototype.lastItem=function(){if(this.head_=this.last_,this.head_)return this.head_.data},Jh.prototype.nextItem=function(){if(this.head_&&this.head_.next)return this.head_=this.head_.next,this.head_.data},Jh.prototype.getNextItem=function(){if(this.head_&&this.head_.next)return this.head_.next.data},Jh.prototype.prevItem=function(){if(this.head_&&this.head_.prev)return this.head_=this.head_.prev,this.head_.data},Jh.prototype.getPrevItem=function(){if(this.head_&&this.head_.prev)return this.head_.prev.data},Jh.prototype.getCurrItem=function(){if(this.head_)return this.head_.data},Jh.prototype.setFirstItem=function(){this.circular_&&this.head_&&(this.first_=this.head_,this.last_=this.head_.prev)},Jh.prototype.concat=function(t){if(t.head_){if(this.head_){var e=this.head_.next;this.head_.next=t.first_,t.first_.prev=this.head_,e.prev=t.last_,t.last_.next=e,this.length_+=t.length_}else this.head_=t.head_,this.first_=t.first_,this.last_=t.last_,this.length_=t.length_;t.head_=void 0,t.first_=void 0,t.last_=void 0,t.length_=0}},Jh.prototype.getLength=function(){return this.length_};var Qh=Jh,$h=function(t){this.rbush_=ua()(t,void 0),this.items_={}};$h.prototype.insert=function(t,e){var i={minX:t[0],minY:t[1],maxX:t[2],maxY:t[3],value:e};this.rbush_.insert(i),this.items_[o(e)]=i},$h.prototype.load=function(t,e){for(var i=new Array(e.length),r=0,n=e.length;r=s;o-=e)l=this.createPoint_(t[o],t[o+1],p++),d.push(this.insertItem_(h,l,i)),c.push([Math.min(h.x,l.x),Math.min(h.y,l.y),Math.max(h.x,l.x),Math.max(h.y,l.y)]),h=l;d.push(this.insertItem_(l,a,i)),c.push([Math.min(h.x,l.x),Math.min(h.y,l.y),Math.max(h.x,l.x),Math.max(h.y,l.y)])}r.load(c,d)},e.prototype.getMaxCoords_=function(t){var e=t.firstItem(),i=e,r=[i.p0.x,i.p0.y];do{(i=t.nextItem()).p0.x>r[0]&&(r=[i.p0.x,i.p0.y])}while(i!==e);return r},e.prototype.classifyPoints_=function(t,e,i){var r=t.firstItem(),n=r,o=t.nextItem(),s=!1;do{var a=i?xh(o.p1.x,o.p1.y,n.p1.x,n.p1.y,n.p0.x,n.p0.y):xh(n.p0.x,n.p0.y,n.p1.x,n.p1.y,o.p1.x,o.p1.y);void 0===a?(this.removeItem_(n,o,t,e),s=!0,o===r&&(r=t.getNextItem()),o=n,t.prevItem()):n.p1.reflex!==a&&(n.p1.reflex=a,s=!0),n=o,o=t.nextItem()}while(n!==r);return s},e.prototype.bridgeHole_=function(t,e,i,r,n){for(var o=t.firstItem();o.p1.x!==e;)o=t.nextItem();var s,a,h,l,u=o.p1,p={x:r,y:u.y,i:-1},c=1/0,d=this.getIntersections_({p0:u,p1:p},n,!0);for(s=0,a=d.length;s0){var y=this.getPointsInTriangle_(u,l,o.p1,n);if(y.length){var v=1/0;for(s=0,a=y.length;s3;)if(r){if(!this.clipEars_(t,e,r,i)&&!this.classifyPoints_(t,e,i)&&!this.resolveSelfIntersections_(t,e,!0))break}else if(!this.clipEars_(t,e,r,i)&&!this.classifyPoints_(t,e,i)&&!this.resolveSelfIntersections_(t,e)){if(!(r=this.isSimple_(t,e))){this.splitPolygon_(t,e);break}i=!this.isClockwise_(t),this.classifyPoints_(t,e,i)}if(3===t.getLength()){var n=this.indices.length;this.indices[n++]=t.getPrevItem().p0.i,this.indices[n++]=t.getCurrItem().p0.i,this.indices[n++]=t.getNextItem().p0.i}},e.prototype.clipEars_=function(t,e,i,r){var n,o,s,a=this.indices.length,h=t.firstItem(),l=t.getPrevItem(),u=h,p=t.nextItem(),c=t.getNextItem(),d=!1;do{if(n=u.p0,o=u.p1,s=p.p1,!1===o.reflex){var f=void 0;f=i?0===this.getPointsInTriangle_(n,o,s,e,!0).length:r?this.diagonalIsInside_(c.p1,s,o,n,l.p0):this.diagonalIsInside_(l.p0,n,o,s,c.p1),(i||0===this.getIntersections_({p0:n,p1:s},e).length)&&f&&(i||!1===n.reflex||!1===s.reflex||Si([l.p0.x,l.p0.y,n.x,n.y,o.x,o.y,s.x,s.y,c.p1.x,c.p1.y],0,10,2)===!r)&&(this.indices[a++]=n.i,this.indices[a++]=o.i,this.indices[a++]=s.i,this.removeItem_(u,p,t,e),p===h&&(h=c),d=!0)}l=t.getPrevItem(),u=t.getCurrItem(),p=t.nextItem(),c=t.getNextItem()}while(u!==h&&t.getLength()>3);return d},e.prototype.resolveSelfIntersections_=function(t,e,i){var r=t.firstItem();t.nextItem();var n=r,o=t.nextItem(),s=!1;do{var a=this.calculateIntersection_(n.p0,n.p1,o.p0,o.p1,i);if(a){var h=!1,l=this.vertices.length,u=this.indices.length,p=l/2,c=t.prevItem();t.removeItem(),e.remove(c),h=c===r;var d=void 0;if(i?(a[0]===n.p0.x&&a[1]===n.p0.y?(t.prevItem(),d=n.p0,o.p0=d,e.remove(n),h=h||n===r):(d=o.p1,n.p1=d,e.remove(o),h=h||o===r),t.removeItem()):(d=this.createPoint_(a[0],a[1],p),n.p1=d,o.p0=d,e.update([Math.min(n.p0.x,n.p1.x),Math.min(n.p0.y,n.p1.y),Math.max(n.p0.x,n.p1.x),Math.max(n.p0.y,n.p1.y)],n),e.update([Math.min(o.p0.x,o.p1.x),Math.min(o.p0.y,o.p1.y),Math.max(o.p0.x,o.p1.x),Math.max(o.p0.y,o.p1.y)],o)),this.indices[u++]=c.p0.i,this.indices[u++]=c.p1.i,this.indices[u++]=d.i,s=!0,h)break}n=t.getPrevItem(),o=t.nextItem()}while(n!==r);return s},e.prototype.isSimple_=function(t,e){var i=t.firstItem(),r=i;do{if(this.getIntersections_(r,e).length)return!1;r=t.nextItem()}while(r!==i);return!0},e.prototype.isClockwise_=function(t){var e=2*t.getLength(),i=new Array(e),r=t.firstItem(),n=r,o=0;do{i[o++]=n.p0.x,i[o++]=n.p0.y,n=t.nextItem()}while(n!==r);return Si(i,0,e,2)},e.prototype.splitPolygon_=function(t,e){var i=t.firstItem(),r=i;do{var n=this.getIntersections_(r,e);if(n.length){var o=n[0],s=this.vertices.length/2,a=this.calculateIntersection_(r.p0,r.p1,o.p0,o.p1),h=this.createPoint_(a[0],a[1],s),l=new Qh,u=new tl;this.insertItem_(h,r.p1,l,u),r.p1=h,e.update([Math.min(r.p0.x,h.x),Math.min(r.p0.y,h.y),Math.max(r.p0.x,h.x),Math.max(r.p0.y,h.y)],r);for(var p=t.nextItem();p!==o;)this.insertItem_(p.p0,p.p1,l,u),e.remove(p),t.removeItem(),p=t.getCurrItem();this.insertItem_(o.p0,h,l,u),o.p0=h,e.update([Math.min(o.p1.x,h.x),Math.min(o.p1.y,h.y),Math.max(o.p1.x,h.x),Math.max(o.p1.y,h.y)],o),this.classifyPoints_(t,e,!1),this.triangulate_(t,e),this.classifyPoints_(l,u,!1),this.triangulate_(l,u);break}r=t.nextItem()}while(r!==i)},e.prototype.createPoint_=function(t,e,i){var r=this.vertices.length;return this.vertices[r++]=t,this.vertices[r++]=e,{x:t,y:e,i:i,reflex:void 0}},e.prototype.insertItem_=function(t,e,i,r){var n={p0:t,p1:e};return i.insertItem(n),r&&r.insert([Math.min(t.x,e.x),Math.min(t.y,e.y),Math.max(t.x,e.x),Math.max(t.y,e.y)],n),n},e.prototype.removeItem_=function(t,e,i,r){i.getCurrItem()===e&&(i.removeItem(),t.p1=e.p1,r.remove(e),r.update([Math.min(t.p0.x,t.p1.x),Math.min(t.p0.y,t.p1.y),Math.max(t.p0.x,t.p1.x),Math.max(t.p0.y,t.p1.y)],t))},e.prototype.getPointsInTriangle_=function(t,e,i,r,n){for(var o=[],s=r.getInExtent([Math.min(t.x,e.x,i.x),Math.min(t.y,e.y,i.y),Math.max(t.x,e.x,i.x),Math.max(t.y,e.y,i.y)]),a=0,h=s.length;amh&&s<1-mh&&a>mh&&a<1-mh||n&&s>=0&&s<=1&&a>=0&&a<=1)return[t.x+s*(e.x-t.x),t.y+s*(e.y-t.y)]}},e.prototype.diagonalIsInside_=function(t,e,i,r,n){if(void 0===e.reflex||void 0===r.reflex)return!1;var o=(i.x-r.x)*(e.y-r.y)>(i.y-r.y)*(e.x-r.x),s=(n.x-r.x)*(e.y-r.y)<(n.y-r.y)*(e.x-r.x),a=(t.x-e.x)*(r.y-e.y)>(t.y-e.y)*(r.x-e.x),h=(i.x-e.x)*(r.y-e.y)<(i.y-e.y)*(r.x-e.x),l=r.reflex?s||o:s&&o,u=e.reflex?h||a:h&&a;return l&&u},e.prototype.drawMultiPolygon=function(t,e){var i,r,n,o,s=t.getEndss(),a=t.getStride(),h=this.indices.length,l=this.lineStringReplay.getCurrentIndex(),u=t.getFlatCoordinates(),p=0;for(i=0,r=s.length;i0){var d=Dt(u,p,c[0],a,-this.origin[0],-this.origin[1]);if(d.length){var f=[],_=void 0;for(n=1,o=c.length;nh&&(this.startIndices.push(h),this.startIndicesFeature.push(e),this.state_.changed&&(this.styleIndices_.push(h),this.state_.changed=!1)),this.lineStringReplay.getCurrentIndex()>l&&this.lineStringReplay.setPolygonStyle(e,l)},e.prototype.drawPolygon=function(t,e){var i=t.getEnds(),r=t.getStride();if(i.length>0){var n=t.getFlatCoordinates().map(Number),o=Dt(n,0,i[0],r,-this.origin[0],-this.origin[1]);if(o.length){var s,a,h,l=[];for(s=1,a=i.length;s0&&(this.styles_=[]),this.vertices=null,this.indices=null},e.prototype.getDeleteResourcesFunction=function(t){var e=this.verticesBuffer,i=this.indicesBuffer,r=this.lineStringReplay.getDeleteResourcesFunction(t);return function(){t.deleteBuffer(e),t.deleteBuffer(i),r()}},e.prototype.setUpProgram=function(t,e,i,r){var n,o=e.getProgram(Hh,Zh);return this.defaultLocations_?n=this.defaultLocations_:(n=new qh(t,o),this.defaultLocations_=n),e.useProgram(o),t.enableVertexAttribArray(n.a_position),t.vertexAttribPointer(n.a_position,2,5126,!1,8,0),n},e.prototype.shutDownProgram=function(t,e){t.disableVertexAttribArray(e.a_position)},e.prototype.drawReplay=function(t,e,i,r){var n,o,s,a,h=t.getParameter(t.DEPTH_FUNC),l=t.getParameter(t.DEPTH_WRITEMASK);if(r||(t.enable(t.DEPTH_TEST),t.depthMask(!0),t.depthFunc(t.NOTEQUAL)),d(i))for(s=this.startIndices[this.startIndices.length-1],n=this.styleIndices_.length-1;n>=0;--n)o=this.styleIndices_[n],a=this.styles_[n],this.setFillStyle_(t,a),this.drawElements(t,e,o,s),s=o;else this.drawReplaySkipping_(t,e,i);r||(t.disable(t.DEPTH_TEST),t.clear(t.DEPTH_BUFFER_BIT),t.depthMask(l),t.depthFunc(h))},e.prototype.drawHitDetectionReplayOneByOne=function(t,e,i,r,n){var s,a,h,l,u,p,c;for(c=this.startIndices.length-2,h=this.startIndices[c+1],s=this.styleIndices_.length-1;s>=0;--s)for(l=this.styles_[s],this.setFillStyle_(t,l),u=this.styleIndices_[s];c>=0&&this.startIndices[c]>=u;){if(a=this.startIndices[c],void 0===i[o(p=this.startIndicesFeature[c])]&&p.getGeometry()&&(void 0===n||Pt(n,p.getGeometry().getExtent()))){t.clear(t.COLOR_BUFFER_BIT|t.DEPTH_BUFFER_BIT),this.drawElements(t,e,a,h);var d=r(p);if(d)return d}c--,h=a}},e.prototype.drawReplaySkipping_=function(t,e,i){var r,n,s,a,h,l,u;for(l=this.startIndices.length-2,s=n=this.startIndices[l+1],r=this.styleIndices_.length-1;r>=0;--r){for(a=this.styles_[r],this.setFillStyle_(t,a),h=this.styleIndices_[r];l>=0&&this.startIndices[l]>=h;)u=this.startIndices[l],i[o(this.startIndicesFeature[l])]&&(n!==s&&(this.drawElements(t,e,n,s),t.clear(t.DEPTH_BUFFER_BIT)),s=u),l--,n=u;n!==s&&(this.drawElements(t,e,n,s),t.clear(t.DEPTH_BUFFER_BIT)),n=s=h}},e.prototype.setFillStyle_=function(t,e){t.uniform4fv(this.defaultLocations_.u_color,e)},e.prototype.setFillStrokeStyle=function(t,e){var i=t?t.getColor():[0,0,0,0];if(i=i instanceof CanvasGradient||i instanceof CanvasPattern?gh:_r(i).map(function(t,e){return 3!=e?t/255:t})||gh,this.state_.fillColor&&Z(i,this.state_.fillColor)||(this.state_.fillColor=i,this.state_.changed=!0,this.styles_.push(i)),e)this.lineStringReplay.setFillStrokeStyle(null,e);else{var r=new Er({color:[0,0,0,0],width:0});this.lineStringReplay.setFillStrokeStyle(null,r)}},e}(_h),il=function(t,e){this.space_=e,this.emptyBlocks_=[{x:0,y:0,width:t,height:t}],this.entries_={},this.context_=Jn(t,t),this.canvas_=this.context_.canvas};il.prototype.get=function(t){return this.entries_[t]||null},il.prototype.add=function(t,e,i,r,n){for(var o=0,s=this.emptyBlocks_.length;o=e+this.space_&&a.height>=i+this.space_){var h={offsetX:a.x+this.space_,offsetY:a.y+this.space_,image:this.canvas_};return this.entries_[t]=h,r.call(n,this.context_,a.x+this.space_,a.y+this.space_),this.split_(o,a,e+this.space_,i+this.space_),h}}return null},il.prototype.split_=function(t,e,i,r){var n,o;e.width-i>e.height-r?(n={x:e.x+i,y:e.y,width:e.width-i,height:e.height},o={x:e.x,y:e.y+r,width:i,height:e.height-r},this.updateBlocks_(t,n,o)):(n={x:e.x+i,y:e.y,width:e.width-i,height:r},o={x:e.x,y:e.y+r,width:e.width,height:e.height-r},this.updateBlocks_(t,n,o))},il.prototype.updateBlocks_=function(t,e,i){var r=[t,1];e.width>0&&e.height>0&&r.push(e),i.width>0&&i.height>0&&r.push(i),this.emptyBlocks_.splice.apply(this.emptyBlocks_,r)};var rl=il,nl=function(t){var e=t||{};this.currentSize_=void 0!==e.initialSize?e.initialSize:256,this.maxSize_=void 0!==e.maxSize?e.maxSize:void 0!==nh?nh:2048,this.space_=void 0!==e.space?e.space:1,this.atlases_=[new rl(this.currentSize_,this.space_)],this.currentHitSize_=this.currentSize_,this.hitAtlases_=[new rl(this.currentHitSize_,this.space_)]};nl.prototype.getInfo=function(t){var e=this.getInfo_(this.atlases_,t);if(!e)return null;var i=this.getInfo_(this.hitAtlases_,t);return this.mergeInfos_(e,i)},nl.prototype.getInfo_=function(t,e){for(var i=0,r=t.length;ithis.maxSize_||i+this.space_>this.maxSize_)return null;var s=this.add_(!1,t,e,i,r,o);if(!s)return null;var a=void 0!==n?n:I,h=this.add_(!0,t,e,i,a,o);return this.mergeInfos_(s,h)},nl.prototype.add_=function(t,e,i,r,n,o){var s,a,h,l,u=t?this.hitAtlases_:this.atlases_;for(h=0,l=u.length;h=0;--d)if(void 0!==(_=f[Ea[d]])&&(g=_.replay(t,e,i,r,n,o,s,a,h,l,u)))return g},e.prototype.forEachFeatureAtCoordinate=function(t,e,i,r,n,o,s,a,h,l){var u,p=e.getGL();return p.bindFramebuffer(p.FRAMEBUFFER,e.getHitDetectionFramebuffer()),void 0!==this.renderBuffer_&&(u=et(pt(t),r*this.renderBuffer_)),this.replayHitDetection_(e,t,r,n,sl,s,a,h,function(t){var e=new Uint8Array(4);if(p.readPixels(0,0,1,1,p.RGBA,p.UNSIGNED_BYTE,e),e[3]>0){var i=l(t);if(i)return i}},!0,u)},e.prototype.hasFeatureAtCoordinate=function(t,e,i,r,n,o,s,a,h){var l=e.getGL();return l.bindFramebuffer(l.FRAMEBUFFER,e.getHitDetectionFramebuffer()),void 0!==this.replayHitDetection_(e,t,r,n,sl,s,a,h,function(t){var e=new Uint8Array(4);return l.readPixels(0,0,1,1,l.RGBA,l.UNSIGNED_BYTE,e),e[3]>0},!1)},e}(ca),ll=function(t){function e(e,i,r,n,o,s,a){t.call(this),this.context_=e,this.center_=i,this.extent_=s,this.pixelRatio_=a,this.size_=o,this.rotation_=n,this.resolution_=r,this.imageStyle_=null,this.fillStyle_=null,this.strokeStyle_=null,this.textStyle_=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.drawText_=function(t,e){var i=this.context_,r=t.getReplay(0,da.TEXT);r.setTextStyle(this.textStyle_),r.drawText(e,null),r.finish(i);r.replay(this.context_,this.center_,this.resolution_,this.rotation_,this.size_,this.pixelRatio_,1,{},void 0,!1),r.getDeleteResourcesFunction(i)()},e.prototype.setStyle=function(t){this.setFillStrokeStyle(t.getFill(),t.getStroke()),this.setImageStyle(t.getImage()),this.setTextStyle(t.getText())},e.prototype.drawGeometry=function(t){switch(t.getType()){case Nt.POINT:this.drawPoint(t,null);break;case Nt.LINE_STRING:this.drawLineString(t,null);break;case Nt.POLYGON:this.drawPolygon(t,null);break;case Nt.MULTI_POINT:this.drawMultiPoint(t,null);break;case Nt.MULTI_LINE_STRING:this.drawMultiLineString(t,null);break;case Nt.MULTI_POLYGON:this.drawMultiPolygon(t,null);break;case Nt.GEOMETRY_COLLECTION:this.drawGeometryCollection(t,null);break;case Nt.CIRCLE:this.drawCircle(t,null)}},e.prototype.drawFeature=function(t,e){var i=e.getGeometryFunction()(t);i&&Pt(this.extent_,i.getExtent())&&(this.setStyle(e),this.drawGeometry(i))},e.prototype.drawGeometryCollection=function(t,e){var i,r,n=t.getGeometriesArray();for(i=0,r=n.length;in[0]||o[1]<0||o[1]>n[1])){this.hitCanvasContext_||(this.hitCanvasContext_=Jn(1,1)),this.hitCanvasContext_.clearRect(0,0,1,1),this.hitCanvasContext_.drawImage(this.image_.getImage(),o[0],o[1],1,1,0,0,1,1);var s=this.hitCanvasContext_.getImageData(0,0,1,1).data;return s[3]>0?i.call(r,this.getLayer(),s):void 0}}},e.prototype.getHitTransformationMatrix_=function(t,e){var i=[1,0,0,1,0,0];Ue(i,-1,-1),je(i,2/t[0],2/t[1]),Ue(i,0,t[1]),je(i,1,-1);var r=Be(this.projectionMatrix.slice()),n=[1,0,0,1,0,0];return Ue(n,0,e[1]),je(n,1,-1),je(n,e[0]/2,e[1]/2),Ue(n,1,1),Ae(n,r),Ae(n,i),n},e}(dl);fl.handles=function(t){return t.getType()===Ss.IMAGE},fl.create=function(t,e){return new fl(t,e)};var _l=fl,gl=function(t){function e(e){t.call(this,e);var i=e.getViewport();this.canvas_=document.createElement("canvas"),this.canvas_.style.width="100%",this.canvas_.style.height="100%",this.canvas_.style.display="block",this.canvas_.className=fo,i.insertBefore(this.canvas_,i.childNodes[0]||null),this.clipTileCanvasWidth_=0,this.clipTileCanvasHeight_=0,this.clipTileContext_=Jn(),this.renderedVisible_=!0,this.gl_=rh(this.canvas_,{antialias:!0,depth:!0,failIfMajorPerformanceCaveat:!0,preserveDrawingBuffer:!1,stencil:!0}),this.context_=new Mh(this.canvas_,this.gl_),v(this.canvas_,Lh.LOST,this.handleWebGLContextLost,this),v(this.canvas_,Lh.RESTORED,this.handleWebGLContextRestored,this),this.textureCache_=new Rs,this.focus_=null,this.tileTextureQueue_=new bn(function(t){var e=t[1],i=t[2],r=e[0]-this.focus_[0],n=e[1]-this.focus_[1];return 65536*Math.log(i)+Math.sqrt(r*r+n*n)/i}.bind(this),function(t){return t[0].getKey()}),this.loadNextTileTexture_=function(t,e){if(!this.tileTextureQueue_.isEmpty()){this.tileTextureQueue_.reprioritize();var i=this.tileTextureQueue_.dequeue(),r=i[0],n=i[3],o=i[4];this.bindTileTexture(r,n,o,Qa,Qa)}return!1}.bind(this),this.textureCacheFrameMarkerCount_=0,this.initializeGL_()}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.bindTileTexture=function(t,e,i,r,n){var o=this.getGL(),s=t.getKey();if(this.textureCache_.containsKey(s)){var a=this.textureCache_.get(s);o.bindTexture(eh,a.texture),a.magFilter!=r&&(o.texParameteri(eh,10240,r),a.magFilter=r),a.minFilter!=n&&(o.texParameteri(eh,10241,n),a.minFilter=n)}else{var h=o.createTexture(),l=t;if(o.bindTexture(eh,h),i>0){var u=this.clipTileContext_.canvas,p=this.clipTileContext_;this.clipTileCanvasWidth_!==e[0]||this.clipTileCanvasHeight_!==e[1]?(u.width=e[0],u.height=e[1],this.clipTileCanvasWidth_=e[0],this.clipTileCanvasHeight_=e[1]):p.clearRect(0,0,e[0],e[1]),p.drawImage(l.getImage(),i,i,e[0],e[1],0,0,e[0],e[1]),o.texImage2D(eh,0,6408,6408,5121,u)}else o.texImage2D(eh,0,6408,6408,5121,l.getImage());o.texParameteri(eh,10240,r),o.texParameteri(eh,10241,n),o.texParameteri(eh,$a,33071),o.texParameteri(eh,th,33071),this.textureCache_.set(s,{texture:h,magFilter:r,minFilter:n})}},e.prototype.dispatchRenderEvent=function(t,e){var i=this.getMap();if(i.hasListener(t)){var r=this.context_,n=e.extent,o=e.size,s=e.viewState,a=e.pixelRatio,h=s.resolution,l=s.center,u=s.rotation,p=new ll(r,l,h,u,o,n,a),c=new Cs(t,p,e,null,r);i.dispatchEvent(c)}},e.prototype.disposeInternal=function(){var e=this.getGL();e.isContextLost()||this.textureCache_.forEach(function(t){t&&e.deleteTexture(t.texture)}),this.context_.dispose(),t.prototype.disposeInternal.call(this)},e.prototype.expireCache_=function(t,e){for(var i,r=this.getGL();this.textureCache_.getCount()-this.textureCacheFrameMarkerCount_>1024;){if(i=this.textureCache_.peekLast())r.deleteTexture(i.texture);else{if(+this.textureCache_.peekLastKey()==e.index)break;--this.textureCacheFrameMarkerCount_}this.textureCache_.pop()}},e.prototype.getContext=function(){return this.context_},e.prototype.getGL=function(){return this.gl_},e.prototype.getTileTextureQueue=function(){return this.tileTextureQueue_},e.prototype.handleWebGLContextLost=function(t){t.preventDefault(),this.textureCache_.clear(),this.textureCacheFrameMarkerCount_=0;var e=this.getLayerRenderers();for(var i in e){e[i].handleWebGLContextLost()}},e.prototype.handleWebGLContextRestored=function(){this.initializeGL_(),this.getMap().render()},e.prototype.initializeGL_=function(){var t=this.gl_;t.activeTexture(33984),t.blendFuncSeparate(770,771,1,771),t.disable(2884),t.disable(2929),t.disable(3089),t.disable(2960)},e.prototype.isTileTextureLoaded=function(t){return this.textureCache_.containsKey(t.getKey())},e.prototype.renderFrame=function(t){var e=this.getContext(),i=this.getGL();if(i.isContextLost())return!1;if(!t)return this.renderedVisible_&&(this.canvas_.style.display="none",this.renderedVisible_=!1),!1;this.focus_=t.focus,this.textureCache_.set((-t.index).toString(),null),++this.textureCacheFrameMarkerCount_,this.dispatchRenderEvent(ur.PRECOMPOSE,t);var r=[],n=t.layerStatesArray;q(n,Zs);var o,s,a=t.viewState.resolution;for(o=0,s=n.length;o1024&&t.postRenderFunctions.push(this.expireCache_.bind(this)),this.tileTextureQueue_.isEmpty()||(t.postRenderFunctions.push(this.loadNextTileTexture_),t.animate=!0),this.dispatchRenderEvent(ur.POSTCOMPOSE,t),this.scheduleRemoveUnusedLayerRenderers(t),this.scheduleExpireIconCache(t)},e.prototype.forEachFeatureAtCoordinate=function(t,e,i,r,n,o,s){var a;if(this.getGL().isContextLost())return!1;var h,l=e.viewState,u=e.layerStatesArray;for(h=u.length-1;h>=0;--h){var p=u[h],c=p.layer;if(mo(p,l.resolution)&&o.call(s,c))if(a=this.getLayerRenderer(c).forEachFeatureAtCoordinate(t,e,i,r))return a}},e.prototype.hasFeatureAtCoordinate=function(t,e,i,r,n){var o=!1;if(this.getGL().isContextLost())return!1;var s,a=e.viewState,h=e.layerStatesArray;for(s=h.length-1;s>=0;--s){var l=h[s],u=l.layer;if(mo(l,a.resolution)&&r.call(n,u))if(o=this.getLayerRenderer(u).hasFeatureAtCoordinate(t,e))return!0}return o},e.prototype.forEachLayerAtPixel=function(t,e,i,r,n,o,s){if(this.getGL().isContextLost())return!1;var a,h,l=e.viewState,u=e.layerStatesArray;for(h=u.length-1;h>=0;--h){var p=u[h],c=p.layer;if(mo(p,l.resolution)&&o.call(n,c))if(a=this.getLayerRenderer(c).forEachLayerAtPixel(t,e,r,n))return a}},e}(qs),yl=function(t){function e(e,i,r){t.call(this);var n=r||{};this.tileCoord=e,this.state=i,this.interimTile=null,this.key="",this.transition_=void 0===n.transition?250:n.transition,this.transitionStarts_={}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.changed=function(){this.dispatchEvent(M.CHANGE)},e.prototype.getKey=function(){return this.key+"/"+this.tileCoord},e.prototype.getInterimTile=function(){if(!this.interimTile)return this;var t=this.interimTile;do{if(t.getState()==On.LOADED)return t;t=t.interimTile}while(t);return this},e.prototype.refreshInterimChain=function(){if(this.interimTile){var t=this.interimTile,e=this;do{if(t.getState()==On.LOADED){t.interimTile=null;break}t.getState()==On.LOADING?e=t:t.getState()==On.IDLE?e.interimTile=t.interimTile:e=t,t=e.interimTile}while(t)}},e.prototype.getTileCoord=function(){return this.tileCoord},e.prototype.getState=function(){return this.state},e.prototype.setState=function(t){this.state=t,this.changed()},e.prototype.load=function(){},e.prototype.getAlpha=function(t,e){if(!this.transition_)return 1;var i=this.transitionStarts_[t];if(i){if(-1===i)return 1}else i=e,this.transitionStarts_[t]=i;var r=e-i+1e3/60;return r>=this.transition_?1:Vn(r/this.transition_)},e.prototype.inTransition=function(t){return!!this.transition_&&-1!==this.transitionStarts_[t]},e.prototype.endTransition=function(t){this.transition_&&(this.transitionStarts_[t]=-1)},e}(b);function vl(){var t=Jn(1,1);return t.fillStyle="rgba(0,0,0,0)",t.fillRect(0,0,1,1),t.canvas}var ml=function(t){function e(e,i,r,n,o,s){t.call(this,e,i,s),this.crossOrigin_=n,this.src_=r,this.image_=new Image,null!==n&&(this.image_.crossOrigin=n),this.imageListenerKeys_=null,this.tileLoadFunction_=o}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.state==On.LOADING&&(this.unlistenImage_(),this.image_=vl()),this.interimTile&&this.interimTile.dispose(),this.state=On.ABORT,this.changed(),t.prototype.disposeInternal.call(this)},e.prototype.getImage=function(){return this.image_},e.prototype.getKey=function(){return this.src_},e.prototype.handleImageError_=function(){this.state=On.ERROR,this.unlistenImage_(),this.image_=vl(),this.changed()},e.prototype.handleImageLoad_=function(){var t=this.image_;t.naturalWidth&&t.naturalHeight?this.state=On.LOADED:this.state=On.EMPTY,this.unlistenImage_(),this.changed()},e.prototype.load=function(){this.state==On.ERROR&&(this.state=On.IDLE,this.image_=new Image,null!==this.crossOrigin_&&(this.image_.crossOrigin=this.crossOrigin_)),this.state==On.IDLE&&(this.state=On.LOADING,this.changed(),this.imageListenerKeys_=[m(this.image_,M.ERROR,this.handleImageError_,this),m(this.image_,M.LOAD,this.handleImageLoad_,this)],this.tileLoadFunction_(this,this.src_))},e.prototype.unlistenImage_=function(){this.imageListenerKeys_.forEach(E),this.imageListenerKeys_=null},e}(yl);function xl(t,e,i,r){return void 0!==r?(r[0]=t,r[1]=e,r[2]=i,r):[t,e,i]}function El(t,e,i){return t+"/"+e+"/"+i}function Sl(t){return El(t[0],t[1],t[2])}function Tl(t){return(t[1]<0||i&&0===o)})}(this.resolutions_,function(t,e){return e-t},!0),17),!t.origins)for(var i=0,r=this.resolutions_.length-1;i=this.minZoom;){if(o=2===this.zoomFactor_?oa(s=Math.floor(s/2),s,a=Math.floor(a/2),a,r):this.getTileRangeForExtentAndZ(h,l,r),e.call(i,l,o))return!0;--l}return!1},Ll.prototype.getExtent=function(){return this.extent_},Ll.prototype.getMaxZoom=function(){return this.maxZoom},Ll.prototype.getMinZoom=function(){return this.minZoom},Ll.prototype.getOrigin=function(t){return this.origin_?this.origin_:this.origins_[t]},Ll.prototype.getResolution=function(t){return this.resolutions_[t]},Ll.prototype.getResolutions=function(){return this.resolutions_},Ll.prototype.getTileCoordChildTileRange=function(t,e,i){if(t[0]i||i>e.getMaxZoom())return!1;var o,s=e.getExtent();return!(o=s?e.getTileRangeForExtentAndZ(s,i):e.getFullTileRange(i))||o.containsXY(r,n)}(t,r)?t:null},e.prototype.refresh=function(){this.tileCache.clear(),this.changed()},e.prototype.useTile=function(t,e,i,r){},e}(wl),Dl=function(t){function e(e,i){t.call(this,e),this.tile=i}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P),kl=Gl,jl=new lh("precision mediump float;\nvarying vec2 v_texCoord;\n\n\nuniform sampler2D u_texture;\n\nvoid main(void) {\n gl_FragColor = texture2D(u_texture, v_texCoord);\n}\n"),Ul=new uh("varying vec2 v_texCoord;\n\n\nattribute vec2 a_position;\nattribute vec2 a_texCoord;\nuniform vec4 u_tileOffset;\n\nvoid main(void) {\n gl_Position = vec4(a_position * u_tileOffset.xy + u_tileOffset.zw, 0., 1.);\n v_texCoord = a_texCoord;\n}\n\n\n"),Yl=function(t,e){this.u_tileOffset=t.getUniformLocation(e,"u_tileOffset"),this.u_texture=t.getUniformLocation(e,"u_texture"),this.a_position=t.getAttribLocation(e,"a_position"),this.a_texCoord=t.getAttribLocation(e,"a_texCoord")},Bl=function(t){function e(e,i){t.call(this,e,i),this.fragmentShader_=jl,this.vertexShader_=Ul,this.locations_=null,this.renderArrayBuffer_=new Th([0,0,0,1,1,0,1,1,0,1,0,0,1,1,1,0]),this.renderedTileRange_=null,this.renderedFramebufferExtent_=null,this.renderedRevision_=-1,this.tmpSize_=[0,0]}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.mapRenderer.getContext().deleteBuffer(this.renderArrayBuffer_),t.prototype.disposeInternal.call(this)},e.prototype.createLoadedTileFinder=function(t,e,i){var r=this.mapRenderer;return function(n,o){return t.forEachLoadedTile(e,n,o,function(t){var e=r.isTileTextureLoaded(t);return e&&(i[n]||(i[n]={}),i[n][t.tileCoord.toString()]=t),e})}},e.prototype.handleWebGLContextLost=function(){t.prototype.handleWebGLContextLost.call(this),this.locations_=null},e.prototype.prepareFrame=function(t,e,i){var r=this.mapRenderer,n=i.getGL(),o=t.viewState,s=o.projection,a=this.getLayer(),h=a.getSource();if(!(h instanceof kl))return!0;var l,u=h.getTileGridForProjection(s),p=u.getZForResolution(o.resolution),c=u.getResolution(p),d=h.getTilePixelSize(p,t.pixelRatio,s),f=d[0]/ho(u.getTileSize(p),this.tmpSize_)[0],_=c/f,g=h.getTilePixelRatio(f)*h.getGutterForProjection(s),y=o.center,v=t.extent,m=u.getTileRangeForExtentAndZ(v,p);if(this.renderedTileRange_&&this.renderedTileRange_.equals(m)&&this.renderedRevision_==h.getRevision())l=this.renderedFramebufferExtent_;else{var x=m.getSize(),E=function(t){return Y(00?i.call(r,this.getLayer(),h):void 0}},e}(dl);Bl.handles=function(t){return t.getType()===Ss.TILE},Bl.create=function(t,e){return new Bl(t,e)};var Vl=Bl,Xl=function(t){function e(e,i){t.call(this,e,i),this.dirty_=!1,this.renderedRevision_=-1,this.renderedResolution_=NaN,this.renderedExtent_=[1/0,1/0,-1/0,-1/0],this.renderedRenderOrder_=null,this.replayGroup_=null,this.layerState_=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.composeFrame=function(t,e,i){this.layerState_=e;var r=t.viewState,n=this.replayGroup_,o=t.size,s=t.pixelRatio,a=this.mapRenderer.getGL();n&&!n.isEmpty()&&(a.enable(a.SCISSOR_TEST),a.scissor(0,0,o[0]*s,o[1]*s),n.replay(i,r.center,r.resolution,r.rotation,o,s,e.opacity,e.managed?t.skippedFeatureUids:{}),a.disable(a.SCISSOR_TEST))},e.prototype.disposeInternal=function(){var e=this.replayGroup_;if(e){var i=this.mapRenderer.getContext();e.getDeleteResourcesFunction(i)(),this.replayGroup_=null}t.prototype.disposeInternal.call(this)},e.prototype.forEachFeatureAtCoordinate=function(t,e,i,r,n){if(this.replayGroup_&&this.layerState_){var s=this.mapRenderer.getContext(),a=e.viewState,h=this.getLayer(),l=this.layerState_,u={};return this.replayGroup_.forEachFeatureAtCoordinate(t,s,a.center,a.resolution,a.rotation,e.size,e.pixelRatio,l.opacity,{},function(t){var e=o(t);if(!(e in u))return u[e]=!0,r.call(n,t,h)})}},e.prototype.hasFeatureAtCoordinate=function(t,e){if(this.replayGroup_&&this.layerState_){var i=this.mapRenderer.getContext(),r=e.viewState,n=this.layerState_;return this.replayGroup_.hasFeatureAtCoordinate(t,i,r.center,r.resolution,r.rotation,e.size,e.pixelRatio,n.opacity,e.skippedFeatureUids)}return!1},e.prototype.forEachLayerAtPixel=function(t,e,i,r){var n=De(e.pixelToCoordinateTransform,t.slice());return this.hasFeatureAtCoordinate(n,e)?i.call(r,this.getLayer(),null):void 0},e.prototype.handleStyleImageChange_=function(t){this.renderIfReadyAndVisible()},e.prototype.prepareFrame=function(t,e,i){var r=this.getLayer(),n=r.getSource(),o=t.viewHints[kn],s=t.viewHints[jn],a=r.getUpdateWhileAnimating(),h=r.getUpdateWhileInteracting();if(!this.dirty_&&!a&&o||!h&&s)return!0;var l=t.extent,u=t.viewState,p=u.projection,c=u.resolution,d=t.pixelRatio,f=r.getRevision(),_=r.getRenderBuffer(),g=r.getRenderOrder();void 0===g&&(g=Da);var y=et(l,_*c);if(!this.dirty_&&this.renderedResolution_==c&&this.renderedRevision_==f&&this.renderedRenderOrder_==g&&ot(this.renderedExtent_,y))return!0;this.replayGroup_&&t.postRenderFunctions.push(this.replayGroup_.getDeleteResourcesFunction(i)),this.dirty_=!1;var v=new hl(ja(c,d),y,r.getRenderBuffer());n.loadFeatures(y,c,p);var m=function(t){var e,i=t.getStyleFunction()||r.getStyleFunction();if(i&&(e=i(t,c)),e){var n=this.renderFeature(t,c,d,e,v);this.dirty_=this.dirty_||n}}.bind(this);if(g){var x=[];n.forEachFeatureInExtent(y,function(t){x.push(t)}),x.sort(g),x.forEach(m.bind(this))}else n.forEachFeatureInExtent(y,m);return v.finish(i),this.renderedResolution_=c,this.renderedRevision_=f,this.renderedRenderOrder_=g,this.renderedExtent_=y,this.replayGroup_=v,!0},e.prototype.renderFeature=function(t,e,i,r,n){if(!r)return!1;var o=!1;if(Array.isArray(r))for(var s=r.length-1;s>=0;--s)o=Ua(n,t,r[s],ka(e,i),this.handleStyleImageChange_,this)||o;else o=Ua(n,t,r,ka(e,i),this.handleStyleImageChange_,this)||o;return o},e}(dl);Xl.handles=function(t){return t.getType()===Ss.VECTOR},Xl.create=function(t,e){return new Xl(t,e)};var zl=Xl,Wl=function(t){function e(e){(e=u({},e)).controls||(e.controls=wo()),e.interactions||(e.interactions=ys()),t.call(this,e)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.createRenderer=function(){var t=new gl(this);return t.registerLayerRenderers([_l,Vl,zl]),t},e}(lo),Kl={ARRAY_BUFFER:"arraybuffer",JSON:"json",TEXT:"text",XML:"xml"};function Hl(t,e,i,r){return function(n,o,s){var a=new XMLHttpRequest;a.open("GET","function"==typeof t?t(n,o,s):t,!0),e.getType()==Kl.ARRAY_BUFFER&&(a.responseType="arraybuffer"),a.onload=function(t){if(!a.status||a.status>=200&&a.status<300){var n,o=e.getType();o==Kl.JSON||o==Kl.TEXT?n=a.responseText:o==Kl.XML?(n=a.responseXML)||(n=(new DOMParser).parseFromString(a.responseText,"application/xml")):o==Kl.ARRAY_BUFFER&&(n=a.response),n?i.call(this,e.readFeatures(n,{featureProjection:s}),e.readProjection(n),e.getLastExtent()):r.call(this)}else r.call(this)}.bind(this),a.onerror=function(){r.call(this)}.bind(this),a.send()}}function Zl(t,e){return Hl(t,e,function(t,e){"function"==typeof this.addFeatures&&this.addFeatures(t)},I)}function ql(t,e){return[[-1/0,-1/0,1/0,1/0]]}var Jl=document.implementation.createDocument("","",null),Ql="http://www.w3.org/2001/XMLSchema-instance";function $l(t,e){return Jl.createElementNS(t,e)}function tu(t,e){return function t(e,i,r){if(e.nodeType==Node.CDATA_SECTION_NODE||e.nodeType==Node.TEXT_NODE)i?r.push(String(e.nodeValue).replace(/(\r\n|\r|\n)/g,"")):r.push(e.nodeValue);else{var n;for(n=e.firstChild;n;n=n.nextSibling)t(n,i,r)}return r}(t,e,[]).join("")}function eu(t){return"documentElement"in t}function iu(t){return(new DOMParser).parseFromString(t,"application/xml")}function ru(t,e){return function(i,r){var n=t.call(void 0!==e?e:this,i,r);void 0!==n&&K(r[r.length-1],n)}}function nu(t,e){return function(i,r){var n=t.call(void 0!==e?e:this,i,r);void 0!==n&&r[r.length-1].push(n)}}function ou(t,e){return function(i,r){var n=t.call(void 0!==e?e:this,i,r);void 0!==n&&(r[r.length-1]=n)}}function su(t,e,i){return function(r,n){var o=t.call(void 0!==i?i:this,r,n);if(void 0!==o){var s=n[n.length-1],a=void 0!==e?e:r.localName;(a in s?s[a]:s[a]=[]).push(o)}}}function au(t,e,i){return function(r,n){var o=t.call(void 0!==i?i:this,r,n);void 0!==o&&(n[n.length-1][void 0!==e?e:r.localName]=o)}}function hu(t,e){return function(i,r,n){t.call(void 0!==e?e:this,i,r,n),n[n.length-1].node.appendChild(i)}}function lu(t,e){var i,r;return function(e,n,o){if(void 0===i){i={};var s={};s[e.localName]=t,i[e.namespaceURI]=s,r=uu(e.localName)}gu(i,r,n,o)}}function uu(t,e){var i=t;return function(t,r,n){var o=r[r.length-1].node,s=i;return void 0===s&&(s=n),$l(void 0!==e?e:o.namespaceURI,s)}}var pu=uu();function cu(t,e){for(var i=e.length,r=new Array(i),n=0;n0)||H(h,function(i){return e.Identifier==i.TileMatrix||-1===e.Identifier.indexOf(":")&&t.Identifier+":"+e.Identifier===i.TileMatrix})){n.push(e.Identifier);var i=28e-5*e.ScaleDenominator/p,l=e.TileWidth,u=e.TileHeight;c?o.push([e.TopLeftCorner[1],e.TopLeftCorner[0]]):o.push(e.TopLeftCorner),r.push(i),s.push(l==u?l:[l,u]),a.push([e.MatrixWidth,-e.MatrixHeight])}}),new vu({extent:e,origins:o,resolutions:r,matrixIds:n,tileSizes:s,sizes:a})}var Eu=function(t){this.opacity_=t.opacity,this.rotateWithView_=t.rotateWithView,this.rotation_=t.rotation,this.scale_=t.scale};Eu.prototype.clone=function(){return new Eu({opacity:this.getOpacity(),scale:this.getScale(),rotation:this.getRotation(),rotateWithView:this.getRotateWithView()})},Eu.prototype.getOpacity=function(){return this.opacity_},Eu.prototype.getRotateWithView=function(){return this.rotateWithView_},Eu.prototype.getRotation=function(){return this.rotation_},Eu.prototype.getScale=function(){return this.scale_},Eu.prototype.getSnapToPixel=function(){return!1},Eu.prototype.getAnchor=function(){return r()},Eu.prototype.getImage=function(t){return r()},Eu.prototype.getHitDetectionImage=function(t){return r()},Eu.prototype.getImageState=function(){return r()},Eu.prototype.getImageSize=function(){return r()},Eu.prototype.getHitDetectionImageSize=function(){return r()},Eu.prototype.getOrigin=function(){return r()},Eu.prototype.getSize=function(){return r()},Eu.prototype.setOpacity=function(t){this.opacity_=t},Eu.prototype.setRotateWithView=function(t){this.rotateWithView_=t},Eu.prototype.setRotation=function(t){this.rotation_=t},Eu.prototype.setScale=function(t){this.scale_=t},Eu.prototype.setSnapToPixel=function(t){},Eu.prototype.listenImageChange=function(t,e){return r()},Eu.prototype.load=function(){r()},Eu.prototype.unlistenImageChange=function(t,e){r()};var Su=Eu,Tu=function(t){function e(e){var i=void 0!==e.rotateWithView&&e.rotateWithView;t.call(this,{opacity:1,rotateWithView:i,rotation:void 0!==e.rotation?e.rotation:0,scale:1}),this.checksums_=null,this.canvas_=null,this.hitDetectionCanvas_=null,this.fill_=void 0!==e.fill?e.fill:null,this.origin_=[0,0],this.points_=e.points,this.radius_=void 0!==e.radius?e.radius:e.radius1,this.radius2_=e.radius2,this.angle_=void 0!==e.angle?e.angle:0,this.stroke_=void 0!==e.stroke?e.stroke:null,this.anchor_=null,this.size_=null,this.imageSize_=null,this.hitDetectionImageSize_=null,this.atlasManager_=e.atlasManager,this.render_(this.atlasManager_)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.clone=function(){var t=new e({fill:this.getFill()?this.getFill().clone():void 0,points:this.getPoints(),radius:this.getRadius(),radius2:this.getRadius2(),angle:this.getAngle(),stroke:this.getStroke()?this.getStroke().clone():void 0,rotation:this.getRotation(),rotateWithView:this.getRotateWithView(),atlasManager:this.atlasManager_});return t.setOpacity(this.getOpacity()),t.setScale(this.getScale()),t},e.prototype.getAnchor=function(){return this.anchor_},e.prototype.getAngle=function(){return this.angle_},e.prototype.getFill=function(){return this.fill_},e.prototype.getHitDetectionImage=function(t){return this.hitDetectionCanvas_},e.prototype.getImage=function(t){return this.canvas_},e.prototype.getImageSize=function(){return this.imageSize_},e.prototype.getHitDetectionImageSize=function(){return this.hitDetectionImageSize_},e.prototype.getImageState=function(){return xs.LOADED},e.prototype.getOrigin=function(){return this.origin_},e.prototype.getPoints=function(){return this.points_},e.prototype.getRadius=function(){return this.radius_},e.prototype.getRadius2=function(){return this.radius2_},e.prototype.getSize=function(){return this.size_},e.prototype.getStroke=function(){return this.stroke_},e.prototype.listenImageChange=function(t,e){},e.prototype.load=function(){},e.prototype.unlistenImageChange=function(t,e){},e.prototype.render_=function(t){var e,i,r="",n="",o=0,s=null,a=0,h=0;this.stroke_&&(null===(i=this.stroke_.getColor())&&(i=Ls),i=Ys(i),void 0===(h=this.stroke_.getWidth())&&(h=1),s=this.stroke_.getLineDash(),a=this.stroke_.getLineDashOffset(),ki||(s=null,a=0),void 0===(n=this.stroke_.getLineJoin())&&(n="round"),void 0===(r=this.stroke_.getLineCap())&&(r="round"),void 0===(o=this.stroke_.getMiterLimit())&&(o=10));var l=2*(this.radius_+h)+1,u={strokeStyle:i,strokeWidth:h,size:l,lineCap:r,lineDash:s,lineDashOffset:a,lineJoin:n,miterLimit:o};if(void 0===t){var p=Jn(l,l);this.canvas_=p.canvas,e=l=this.canvas_.width,this.draw_(u,p,0,0),this.createHitDetectionCanvas_(u)}else{l=Math.round(l);var c,d=!this.fill_;d&&(c=this.drawHitDetectionCanvas_.bind(this,u));var f=this.getChecksum(),_=t.add(f,l,l,this.draw_.bind(this,u),c);this.canvas_=_.image,this.origin_=[_.offsetX,_.offsetY],e=_.image.width,d?(this.hitDetectionCanvas_=_.hitImage,this.hitDetectionImageSize_=[_.hitImage.width,_.hitImage.height]):(this.hitDetectionCanvas_=this.canvas_,this.hitDetectionImageSize_=[e,e])}this.anchor_=[l/2,l/2],this.size_=[l,l],this.imageSize_=[e,e]},e.prototype.draw_=function(t,e,i,r){var n,o,s;e.setTransform(1,0,0,1,0,0),e.translate(i,r),e.beginPath();var a=this.points_;if(a===1/0)e.arc(t.size/2,t.size/2,this.radius_,0,2*Math.PI,!0);else{var h=void 0!==this.radius2_?this.radius2_:this.radius_;for(h!==this.radius_&&(a*=2),n=0;n<=a;n++)o=2*n*Math.PI/a-Math.PI/2+this.angle_,s=n%2==0?this.radius_:h,e.lineTo(t.size/2+s*Math.cos(o),t.size/2+s*Math.sin(o))}if(this.fill_){var l=this.fill_.getColor();null===l&&(l=ws),e.fillStyle=Ys(l),e.fill()}this.stroke_&&(e.strokeStyle=t.strokeStyle,e.lineWidth=t.strokeWidth,t.lineDash&&(e.setLineDash(t.lineDash),e.lineDashOffset=t.lineDashOffset),e.lineCap=t.lineCap,e.lineJoin=t.lineJoin,e.miterLimit=t.miterLimit,e.stroke()),e.closePath()},e.prototype.createHitDetectionCanvas_=function(t){if(this.hitDetectionImageSize_=[t.size,t.size],this.fill_)this.hitDetectionCanvas_=this.canvas_;else{var e=Jn(t.size,t.size);this.hitDetectionCanvas_=e.canvas,this.drawHitDetectionCanvas_(t,e,0,0)}},e.prototype.drawHitDetectionCanvas_=function(t,e,i,r){e.setTransform(1,0,0,1,0,0),e.translate(i,r),e.beginPath();var n=this.points_;if(n===1/0)e.arc(t.size/2,t.size/2,this.radius_,0,2*Math.PI,!0);else{var o,s,a,h=void 0!==this.radius2_?this.radius2_:this.radius_;for(h!==this.radius_&&(n*=2),o=0;o<=n;o++)a=2*o*Math.PI/n-Math.PI/2+this.angle_,s=o%2==0?this.radius_:h,e.lineTo(t.size/2+s*Math.cos(a),t.size/2+s*Math.sin(a))}e.fillStyle=dr(ws),e.fill(),this.stroke_&&(e.strokeStyle=t.strokeStyle,e.lineWidth=t.strokeWidth,t.lineDash&&(e.setLineDash(t.lineDash),e.lineDashOffset=t.lineDashOffset),e.stroke()),e.closePath()},e.prototype.getChecksum=function(){var t=this.stroke_?this.stroke_.getChecksum():"-",e=this.fill_?this.fill_.getChecksum():"-";if(!this.checksums_||t!=this.checksums_[1]||e!=this.checksums_[2]||this.radius_!=this.checksums_[3]||this.radius2_!=this.checksums_[4]||this.angle_!=this.checksums_[5]||this.points_!=this.checksums_[6]){var i="r"+t+e+(void 0!==this.radius_?this.radius_.toString():"-")+(void 0!==this.radius2_?this.radius2_.toString():"-")+(void 0!==this.angle_?this.angle_.toString():"-")+(void 0!==this.points_?this.points_.toString():"-");this.checksums_=[i,t,e,this.radius_,this.radius2_,this.angle_,this.points_]}return this.checksums_[0]},e}(Su),Cu=function(t){function e(e){var i=e||{};t.call(this,{points:1/0,fill:i.fill,radius:i.radius,stroke:i.stroke,atlasManager:i.atlasManager})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.clone=function(){var t=new e({fill:this.getFill()?this.getFill().clone():void 0,stroke:this.getStroke()?this.getStroke().clone():void 0,radius:this.getRadius(),atlasManager:this.atlasManager_});return t.setOpacity(this.getOpacity()),t.setScale(this.getScale()),t},e.prototype.setRadius=function(t){this.radius_=t,this.render_(this.atlasManager_)},e}(Tu),Ru={FRACTION:"fraction",PIXELS:"pixels"},wu=function(t){function e(e,i,r,n,o,s){t.call(this),this.hitDetectionImage_=null,this.image_=e||new Image,null!==n&&(this.image_.crossOrigin=n),this.canvas_=s?document.createElement("canvas"):null,this.color_=s,this.imageListenerKeys_=null,this.imageState_=o,this.size_=r,this.src_=i,this.tainted_}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.isTainted_=function(){if(void 0===this.tainted_&&this.imageState_===xs.LOADED){this.tainted_=!1;var t=Jn(1,1);try{t.drawImage(this.image_,0,0),t.getImageData(0,0,1,1)}catch(t){this.tainted_=!0}}return!0===this.tainted_},e.prototype.dispatchChangeEvent_=function(){this.dispatchEvent(M.CHANGE)},e.prototype.handleImageError_=function(){this.imageState_=xs.ERROR,this.unlistenImage_(),this.dispatchChangeEvent_()},e.prototype.handleImageLoad_=function(){this.imageState_=xs.LOADED,this.size_&&(this.image_.width=this.size_[0],this.image_.height=this.size_[1]),this.size_=[this.image_.width,this.image_.height],this.unlistenImage_(),this.replaceColor_(),this.dispatchChangeEvent_()},e.prototype.getImage=function(t){return this.canvas_?this.canvas_:this.image_},e.prototype.getImageState=function(){return this.imageState_},e.prototype.getHitDetectionImage=function(t){if(!this.hitDetectionImage_)if(this.isTainted_()){var e=this.size_[0],i=this.size_[1],r=Jn(e,i);r.fillRect(0,0,e,i),this.hitDetectionImage_=r.canvas}else this.hitDetectionImage_=this.image_;return this.hitDetectionImage_},e.prototype.getSize=function(){return this.size_},e.prototype.getSrc=function(){return this.src_},e.prototype.load=function(){if(this.imageState_==xs.IDLE){this.imageState_=xs.LOADING,this.imageListenerKeys_=[m(this.image_,M.ERROR,this.handleImageError_,this),m(this.image_,M.LOAD,this.handleImageLoad_,this)];try{this.image_.src=this.src_}catch(t){this.handleImageError_()}}},e.prototype.replaceColor_=function(){if(this.color_&&!this.isTainted_()){this.canvas_.width=this.image_.width,this.canvas_.height=this.image_.height;var t=this.canvas_.getContext("2d");t.drawImage(this.image_,0,0);for(var e=t.getImageData(0,0,this.image_.width,this.image_.height),i=e.data,r=this.color_[0]/255,n=this.color_[1]/255,o=this.color_[2]/255,s=0,a=i.length;s0,6);var p=void 0!==i.src?xs.IDLE:xs.LOADED;this.color_=void 0!==i.color?_r(i.color):null,this.iconImage_=function(t,e,i,r,n,o){var s=Ks.get(e,r,o);return s||(s=new wu(t,e,i,r,n,o),Ks.set(e,r,o,s)),s}(h,u,l,this.crossOrigin_,p,this.color_),this.offset_=void 0!==i.offset?i.offset:[0,0],this.offsetOrigin_=void 0!==i.offsetOrigin?i.offsetOrigin:Iu.TOP_LEFT,this.origin_=null,this.size_=void 0!==i.size?i.size:null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.clone=function(){return new e({anchor:this.anchor_.slice(),anchorOrigin:this.anchorOrigin_,anchorXUnits:this.anchorXUnits_,anchorYUnits:this.anchorYUnits_,crossOrigin:this.crossOrigin_,color:this.color_&&this.color_.slice?this.color_.slice():this.color_||void 0,src:this.getSrc(),offset:this.offset_.slice(),offsetOrigin:this.offsetOrigin_,size:null!==this.size_?this.size_.slice():void 0,opacity:this.getOpacity(),scale:this.getScale(),rotation:this.getRotation(),rotateWithView:this.getRotateWithView()})},e.prototype.getAnchor=function(){if(this.normalizedAnchor_)return this.normalizedAnchor_;var t=this.anchor_,e=this.getSize();if(this.anchorXUnits_==Ru.FRACTION||this.anchorYUnits_==Ru.FRACTION){if(!e)return null;t=this.anchor_.slice(),this.anchorXUnits_==Ru.FRACTION&&(t[0]*=e[0]),this.anchorYUnits_==Ru.FRACTION&&(t[1]*=e[1])}if(this.anchorOrigin_!=Iu.TOP_LEFT){if(!e)return null;t===this.anchor_&&(t=this.anchor_.slice()),this.anchorOrigin_!=Iu.TOP_RIGHT&&this.anchorOrigin_!=Iu.BOTTOM_RIGHT||(t[0]=-t[0]+e[0]),this.anchorOrigin_!=Iu.BOTTOM_LEFT&&this.anchorOrigin_!=Iu.BOTTOM_RIGHT||(t[1]=-t[1]+e[1])}return this.normalizedAnchor_=t,this.normalizedAnchor_},e.prototype.setAnchor=function(t){this.anchor_=t,this.normalizedAnchor_=null},e.prototype.getColor=function(){return this.color_},e.prototype.getImage=function(t){return this.iconImage_.getImage(t)},e.prototype.getImageSize=function(){return this.iconImage_.getSize()},e.prototype.getHitDetectionImageSize=function(){return this.getImageSize()},e.prototype.getImageState=function(){return this.iconImage_.getImageState()},e.prototype.getHitDetectionImage=function(t){return this.iconImage_.getHitDetectionImage(t)},e.prototype.getOrigin=function(){if(this.origin_)return this.origin_;var t=this.offset_;if(this.offsetOrigin_!=Iu.TOP_LEFT){var e=this.getSize(),i=this.iconImage_.getSize();if(!e||!i)return null;t=t.slice(),this.offsetOrigin_!=Iu.TOP_RIGHT&&this.offsetOrigin_!=Iu.BOTTOM_RIGHT||(t[0]=i[0]-e[0]-t[0]),this.offsetOrigin_!=Iu.BOTTOM_LEFT&&this.offsetOrigin_!=Iu.BOTTOM_RIGHT||(t[1]=i[1]-e[1]-t[1])}return this.origin_=t,this.origin_},e.prototype.getSrc=function(){return this.iconImage_.getSrc()},e.prototype.getSize=function(){return this.size_?this.size_:this.iconImage_.getSize()},e.prototype.listenImageChange=function(t,e){return v(this.iconImage_,M.CHANGE,t,e)},e.prototype.load=function(){this.iconImage_.load()},e.prototype.unlistenImageChange=function(t,e){x(this.iconImage_,M.CHANGE,t,e)},e}(Su),Ou=function(t){var e=t||{};this.geometry_=null,this.geometryFunction_=Fu,void 0!==e.geometry&&this.setGeometry(e.geometry),this.fill_=void 0!==e.fill?e.fill:null,this.image_=void 0!==e.image?e.image:null,this.renderer_=void 0!==e.renderer?e.renderer:null,this.stroke_=void 0!==e.stroke?e.stroke:null,this.text_=void 0!==e.text?e.text:null,this.zIndex_=e.zIndex};Ou.prototype.clone=function(){var t=this.getGeometry();return t&&"object"==typeof t&&(t=t.clone()),new Ou({geometry:t,fill:this.getFill()?this.getFill().clone():void 0,image:this.getImage()?this.getImage().clone():void 0,stroke:this.getStroke()?this.getStroke().clone():void 0,text:this.getText()?this.getText().clone():void 0,zIndex:this.getZIndex()})},Ou.prototype.getRenderer=function(){return this.renderer_},Ou.prototype.setRenderer=function(t){this.renderer_=t},Ou.prototype.getGeometry=function(){return this.geometry_},Ou.prototype.getGeometryFunction=function(){return this.geometryFunction_},Ou.prototype.getFill=function(){return this.fill_},Ou.prototype.setFill=function(t){this.fill_=t},Ou.prototype.getImage=function(){return this.image_},Ou.prototype.setImage=function(t){this.image_=t},Ou.prototype.getStroke=function(){return this.stroke_},Ou.prototype.setStroke=function(t){this.stroke_=t},Ou.prototype.getText=function(){return this.text_},Ou.prototype.setText=function(t){this.text_=t},Ou.prototype.getZIndex=function(){return this.zIndex_},Ou.prototype.setGeometry=function(t){"function"==typeof t?this.geometryFunction_=t:"string"==typeof t?this.geometryFunction_=function(e){return e.get(t)}:t?void 0!==t&&(this.geometryFunction_=function(){return t}):this.geometryFunction_=Fu,this.geometry_=t},Ou.prototype.setZIndex=function(t){this.zIndex_=t};var Pu=null;function bu(t,e){if(!Pu){var i=new mr({color:"rgba(255,255,255,0.4)"}),r=new Er({color:"#3399CC",width:1.25});Pu=[new Ou({image:new Cu({fill:i,stroke:r,radius:5}),fill:i,stroke:r})]}return Pu}function Mu(){var t={},e=[255,255,255,1],i=[0,153,255,1];return t[Nt.POLYGON]=[new Ou({fill:new mr({color:[255,255,255,.5]})})],t[Nt.MULTI_POLYGON]=t[Nt.POLYGON],t[Nt.LINE_STRING]=[new Ou({stroke:new Er({color:e,width:5})}),new Ou({stroke:new Er({color:i,width:3})})],t[Nt.MULTI_LINE_STRING]=t[Nt.LINE_STRING],t[Nt.CIRCLE]=t[Nt.POLYGON].concat(t[Nt.LINE_STRING]),t[Nt.POINT]=[new Ou({image:new Cu({radius:6,fill:new mr({color:i}),stroke:new Er({color:e,width:1.5})}),zIndex:1/0})],t[Nt.MULTI_POINT]=t[Nt.POINT],t[Nt.GEOMETRY_COLLECTION]=t[Nt.POLYGON].concat(t[Nt.LINE_STRING],t[Nt.POINT]),t}function Fu(t){return t.getGeometry()}var Au=Ou;function Nu(t,e){var i=/\{z\}/g,r=/\{x\}/g,n=/\{y\}/g,o=/\{-y\}/g;return function(s,a,h){return s?t.replace(i,s[0].toString()).replace(r,s[1].toString()).replace(n,function(){return(-s[2]-1).toString()}).replace(o,function(){var t=s[0],i=e.getFullTileRange(t);return Y(i,55),(i.getHeight()+s[2]).toString()}):void 0}}function Gu(t,e){for(var i=t.length,r=new Array(i),n=0;n0&&(o/=l)}return o}function Bu(t,e,i,r){var n=i-t,o=r-e,s=Math.sqrt(n*n+o*o);return[Math.round(i+n/s),Math.round(r+o/s)]}function Vu(t,e,i,r,n,o,s,a,h,l,u){var p=Jn(Math.round(i*t),Math.round(i*e));if(0===h.length)return p.canvas;p.scale(i,i);var c=[1/0,1/0,-1/0,-1/0];h.forEach(function(t,e,i){ft(c,t.extent)});var d=Ot(c),f=Rt(c),_=Jn(Math.round(i*d/r),Math.round(i*f/r)),g=i/r;h.forEach(function(t,e,i){var r=t.extent[0]-c[0],n=-(t.extent[3]-c[3]),o=Ot(t.extent),s=Rt(t.extent);_.drawImage(t.image,l,l,t.image.width-2*l,t.image.height-2*l,r*g,n*g,o*g,s*g)});var y=It(s);return a.getTriangles().forEach(function(t,e,n){var s=t.source,a=t.target,h=s[0][0],l=s[0][1],u=s[1][0],d=s[1][1],f=s[2][0],g=s[2][1],v=(a[0][0]-y[0])/o,m=-(a[0][1]-y[1])/o,x=(a[1][0]-y[0])/o,E=-(a[1][1]-y[1])/o,S=(a[2][0]-y[0])/o,T=-(a[2][1]-y[1])/o,C=h,R=l;h=0,l=0;var w=function(t){for(var e=t.length,i=0;in&&(n=s,r=o)}if(0===n)return null;var a=t[r];t[r]=t[i],t[i]=a;for(var h=i+1;h=0;c--){p[c]=t[c][e]/t[c][c];for(var d=c-1;d>=0;d--)t[d][e]-=t[d][c]*p[c]}return p}([[u-=C,d-=R,0,0,x-v],[f-=C,g-=R,0,0,S-v],[0,0,u,d,E-m],[0,0,f,g,T-m]]);if(w){p.save(),p.beginPath();var I=(v+x+S)/3,L=(m+E+T)/3,O=Bu(I,L,v,m),P=Bu(I,L,x,E),b=Bu(I,L,S,T);p.moveTo(P[0],P[1]),p.lineTo(O[0],O[1]),p.lineTo(b[0],b[1]),p.clip(),p.transform(w[0],w[2],w[1],w[3],v,m),p.translate(c[0]-C,c[3]-R),p.scale(r/i,-r/i),p.drawImage(_.canvas,0,0),p.restore()}}),u&&(p.save(),p.strokeStyle="black",p.lineWidth=1,a.getTriangles().forEach(function(t,e,i){var r=t.target,n=(r[0][0]-y[0])/o,s=-(r[0][1]-y[1])/o,a=(r[1][0]-y[0])/o,h=-(r[1][1]-y[1])/o,l=(r[2][0]-y[0])/o,u=-(r[2][1]-y[1])/o;p.beginPath(),p.moveTo(a,h),p.lineTo(n,s),p.lineTo(l,u),p.closePath(),p.stroke()}),p.restore()),p.canvas}var Xu=function(t,e,i,r,n){this.sourceProj_=t,this.targetProj_=e;var o={},s=Oe(this.targetProj_,this.sourceProj_);this.transformInv_=function(t){var e=t[0]+"/"+t[1];return o[e]||(o[e]=s(t)),o[e]},this.maxSourceExtent_=r,this.errorThresholdSquared_=n*n,this.triangles_=[],this.wrapsXInSource_=!1,this.canWrapXInSource_=this.sourceProj_.canWrapX()&&!!r&&!!this.sourceProj_.getExtent()&&Ot(r)==Ot(this.sourceProj_.getExtent()),this.sourceWorldWidth_=this.sourceProj_.getExtent()?Ot(this.sourceProj_.getExtent()):null,this.targetWorldWidth_=this.targetProj_.getExtent()?Ot(this.targetProj_.getExtent()):null;var a=It(i),h=Lt(i),l=St(i),u=Et(i),p=this.transformInv_(a),c=this.transformInv_(h),d=this.transformInv_(l),f=this.transformInv_(u);if(this.addQuad_(a,h,l,u,p,c,d,f,10),this.wrapsXInSource_){var _=1/0;this.triangles_.forEach(function(t,e,i){_=Math.min(_,t.source[0][0],t.source[1][0],t.source[2][0])}),this.triangles_.forEach(function(t){if(Math.max(t.source[0][0],t.source[1][0],t.source[2][0])-_>this.sourceWorldWidth_/2){var e=[[t.source[0][0],t.source[0][1]],[t.source[1][0],t.source[1][1]],[t.source[2][0],t.source[2][1]]];e[0][0]-_>this.sourceWorldWidth_/2&&(e[0][0]-=this.sourceWorldWidth_),e[1][0]-_>this.sourceWorldWidth_/2&&(e[1][0]-=this.sourceWorldWidth_),e[2][0]-_>this.sourceWorldWidth_/2&&(e[2][0]-=this.sourceWorldWidth_);var i=Math.min(e[0][0],e[1][0],e[2][0]);Math.max(e[0][0],e[1][0],e[2][0])-i.5&&u<1,d=!1;if(h>0){if(this.targetProj_.isGlobal()&&this.targetWorldWidth_)d=Ot(tt([t,e,i,r]))/this.targetWorldWidth_>.25||d;!c&&this.sourceProj_.isGlobal()&&u&&(d=u>.25||d)}if(d||!this.maxSourceExtent_||Pt(l,this.maxSourceExtent_)){if(!(d||isFinite(n[0])&&isFinite(n[1])&&isFinite(o[0])&&isFinite(o[1])&&isFinite(s[0])&&isFinite(s[1])&&isFinite(a[0])&&isFinite(a[1]))){if(!(h>0))return;d=!0}if(h>0){if(!d){var f,_=[(t[0]+i[0])/2,(t[1]+i[1])/2],g=this.transformInv_(_);if(c)f=(Xt(n[0],p)+Xt(s[0],p))/2-Xt(g[0],p);else f=(n[0]+s[0])/2-g[0];var y=(n[1]+s[1])/2-g[1];d=f*f+y*y>this.errorThresholdSquared_}if(d){if(Math.abs(t[0]-i[0])<=Math.abs(t[1]-i[1])){var v=[(e[0]+i[0])/2,(e[1]+i[1])/2],m=this.transformInv_(v),x=[(r[0]+t[0])/2,(r[1]+t[1])/2],E=this.transformInv_(x);this.addQuad_(t,e,v,x,n,o,m,E,h-1),this.addQuad_(x,v,i,r,E,m,s,a,h-1)}else{var S=[(t[0]+e[0])/2,(t[1]+e[1])/2],T=this.transformInv_(S),C=[(i[0]+r[0])/2,(i[1]+r[1])/2],R=this.transformInv_(C);this.addQuad_(t,S,C,r,n,T,R,a,h-1),this.addQuad_(S,e,i,C,T,o,s,R,h-1)}return}}if(c){if(!this.canWrapXInSource_)return;this.wrapsXInSource_=!0}this.addTriangle_(t,i,r,n,s,a),this.addTriangle_(t,e,i,n,o,s)}},Xu.prototype.calculateSourceExtent=function(){var t=[1/0,1/0,-1/0,-1/0];return this.triangles_.forEach(function(e,i,r){var n=e.source;_t(t,n[0]),_t(t,n[1]),_t(t,n[2])}),t},Xu.prototype.getTriangles=function(){return this.triangles_};var zu=Xu,Wu=function(t){function e(e,i,r,n,o,s,a,h,l,u,p){t.call(this,o,On.IDLE),this.renderEdges_=void 0!==p&&p,this.pixelRatio_=a,this.gutter_=h,this.canvas_=null,this.sourceTileGrid_=i,this.targetTileGrid_=n,this.wrappedTileCoord_=s||o,this.sourceTiles_=[],this.sourcesListenerKeys_=null,this.sourceZ_=0;var c=n.getTileCoordExtent(this.wrappedTileCoord_),d=this.targetTileGrid_.getExtent(),f=this.sourceTileGrid_.getExtent(),_=d?wt(c,d):c;if(0!==xt(_)){var g=e.getExtent();g&&(f=f?wt(f,g):g);var y=n.getResolution(this.wrappedTileCoord_[0]),v=Yu(e,r,Tt(_),y);if(!isFinite(v)||v<=0)this.state=On.EMPTY;else{var m=void 0!==u?u:vs;if(this.triangulation_=new zu(e,r,_,f,v*m),0!==this.triangulation_.getTriangles().length){this.sourceZ_=i.getZForResolution(v);var x=this.triangulation_.calculateSourceExtent();if(f&&(e.canWrapX()?(x[1]=kt(x[1],f[1],f[3]),x[3]=kt(x[3],f[1],f[3])):x=wt(x,f)),xt(x)){for(var E=i.getTileRangeForExtentAndZ(x,this.sourceZ_),S=E.minX;S<=E.maxX;S++)for(var T=E.minY;T<=E.maxY;T++){var C=l(this.sourceZ_,S,T,a);C&&this.sourceTiles_.push(C)}0===this.sourceTiles_.length&&(this.state=On.EMPTY)}else this.state=On.EMPTY}else this.state=On.EMPTY}}else this.state=On.EMPTY}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.state==On.LOADING&&this.unlistenSources_(),t.prototype.disposeInternal.call(this)},e.prototype.getImage=function(){return this.canvas_},e.prototype.reproject_=function(){var t=[];if(this.sourceTiles_.forEach(function(e,i,r){e&&e.getState()==On.LOADED&&t.push({extent:this.sourceTileGrid_.getTileCoordExtent(e.tileCoord),image:e.getImage()})}.bind(this)),this.sourceTiles_.length=0,0===t.length)this.state=On.ERROR;else{var e=this.wrappedTileCoord_[0],i=this.targetTileGrid_.getTileSize(e),r="number"==typeof i?i:i[0],n="number"==typeof i?i:i[1],o=this.targetTileGrid_.getResolution(e),s=this.sourceTileGrid_.getResolution(this.sourceZ_),a=this.targetTileGrid_.getTileCoordExtent(this.wrappedTileCoord_);this.canvas_=Vu(r,n,this.pixelRatio_,s,this.sourceTileGrid_.getExtent(),o,a,this.triangulation_,t,this.gutter_,this.renderEdges_),this.state=On.LOADED}this.changed()},e.prototype.load=function(){if(this.state==On.IDLE){this.state=On.LOADING,this.changed();var t=0;this.sourcesListenerKeys_=[],this.sourceTiles_.forEach(function(e,i,r){var n=e.getState();if(n==On.IDLE||n==On.LOADING){t++;var o=v(e,M.CHANGE,function(i){var r=e.getState();r!=On.LOADED&&r!=On.ERROR&&r!=On.EMPTY||(E(o),0===--t&&(this.unlistenSources_(),this.reproject_()))},this);this.sourcesListenerKeys_.push(o)}}.bind(this)),this.sourceTiles_.forEach(function(t,e,i){t.getState()==On.IDLE&&t.load()}),0===t&&setTimeout(this.reproject_.bind(this),0)}},e.prototype.unlistenSources_=function(){this.sourcesListenerKeys_.forEach(E),this.sourcesListenerKeys_=null},e}(yl),Ku="tileloadstart",Hu="tileloadend",Zu="tileloaderror",qu=function(t){function e(e){t.call(this,{attributions:e.attributions,cacheSize:e.cacheSize,opaque:e.opaque,projection:e.projection,state:e.state,tileGrid:e.tileGrid,tilePixelRatio:e.tilePixelRatio,wrapX:e.wrapX,transition:e.transition,key:e.key,attributionsCollapsible:e.attributionsCollapsible}),this.generateTileUrlFunction_=!e.tileUrlFunction,this.tileLoadFunction=e.tileLoadFunction,this.tileUrlFunction=e.tileUrlFunction?e.tileUrlFunction.bind(this):ku,this.urls=null,e.urls?this.setUrls(e.urls):e.url&&this.setUrl(e.url),e.tileUrlFunction&&this.setTileUrlFunction(e.tileUrlFunction,this.key_),this.tileLoadingKeys_={}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getTileLoadFunction=function(){return this.tileLoadFunction},e.prototype.getTileUrlFunction=function(){return this.tileUrlFunction},e.prototype.getUrls=function(){return this.urls},e.prototype.handleTileChange=function(t){var e,i=t.target,r=o(i),n=i.getState();n==On.LOADING?(this.tileLoadingKeys_[r]=!0,e=Ku):r in this.tileLoadingKeys_&&(delete this.tileLoadingKeys_[r],e=n==On.ERROR?Zu:n==On.LOADED||n==On.ABORT?Hu:void 0),void 0!=e&&this.dispatchEvent(new Dl(e,i))},e.prototype.setTileLoadFunction=function(t){this.tileCache.clear(),this.tileLoadFunction=t,this.changed()},e.prototype.setTileUrlFunction=function(t,e){this.tileUrlFunction=t,this.tileCache.pruneExceptNewestZ(),void 0!==e?this.setKey(e):this.changed()},e.prototype.setUrl=function(t){var e=this.urls=ju(t);this.setUrls(e)},e.prototype.setUrls=function(t){this.urls=t;var e=t.join("\n");this.generateTileUrlFunction_?this.setTileUrlFunction(Gu(t,this.tileGrid),e):this.setKey(e)},e.prototype.useTile=function(t,e,i){var r=El(t,e,i);this.tileCache.containsKey(r)&&this.tileCache.get(r)},e}(kl);function Ju(t,e){t.getImage().src=e}var Qu=function(t){function e(e){t.call(this,{attributions:e.attributions,cacheSize:e.cacheSize,opaque:e.opaque,projection:e.projection,state:e.state,tileGrid:e.tileGrid,tileLoadFunction:e.tileLoadFunction?e.tileLoadFunction:Ju,tilePixelRatio:e.tilePixelRatio,tileUrlFunction:e.tileUrlFunction,url:e.url,urls:e.urls,wrapX:e.wrapX,transition:e.transition,key:e.key,attributionsCollapsible:e.attributionsCollapsible}),this.crossOrigin=void 0!==e.crossOrigin?e.crossOrigin:null,this.tileClass=void 0!==e.tileClass?e.tileClass:ml,this.tileCacheForProjection={},this.tileGridForProjection={},this.reprojectionErrorThreshold_=e.reprojectionErrorThreshold,this.renderReprojectionEdges_=!1}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.canExpireCache=function(){if(this.tileCache.canExpireCache())return!0;for(var t in this.tileCacheForProjection)if(this.tileCacheForProjection[t].canExpireCache())return!0;return!1},e.prototype.expireCache=function(t,e){var i=this.getTileCacheForProjection(t);for(var r in this.tileCache.expireCache(this.tileCache==i?e:{}),this.tileCacheForProjection){var n=this.tileCacheForProjection[r];n.expireCache(n==i?e:{})}},e.prototype.getGutterForProjection=function(t){return this.getProjection()&&t&&!Ie(this.getProjection(),t)?0:this.getGutter()},e.prototype.getGutter=function(){return 0},e.prototype.getOpaque=function(e){return!(this.getProjection()&&e&&!Ie(this.getProjection(),e))&&t.prototype.getOpaque.call(this,e)},e.prototype.getTileGridForProjection=function(t){var e=this.getProjection();if(!this.tileGrid||e&&!Ie(e,t)){var i=o(t);return i in this.tileGridForProjection||(this.tileGridForProjection[i]=Pl(t)),this.tileGridForProjection[i]}return this.tileGrid},e.prototype.getTileCacheForProjection=function(t){var e=this.getProjection();if(!e||Ie(e,t))return this.tileCache;var i=o(t);return i in this.tileCacheForProjection||(this.tileCacheForProjection[i]=new Cl(this.tileCache.highWaterMark)),this.tileCacheForProjection[i]},e.prototype.createTile_=function(t,e,i,r,n,o){var s=[t,e,i],a=this.getTileCoordForTileUrlFunction(s,n),h=a?this.tileUrlFunction(a,r,n):void 0,l=new this.tileClass(s,void 0!==h?On.IDLE:On.EMPTY,void 0!==h?h:"",this.crossOrigin,this.tileLoadFunction,this.tileOptions);return l.key=o,v(l,M.CHANGE,this.handleTileChange,this),l},e.prototype.getTile=function(t,e,i,r,n){var o=this.getProjection();if(o&&n&&!Ie(o,n)){var s,a=this.getTileCacheForProjection(n),h=[t,e,i],l=Sl(h);a.containsKey(l)&&(s=a.get(l));var u=this.getKey();if(s&&s.key==u)return s;var p=this.getTileGridForProjection(o),c=this.getTileGridForProjection(n),d=this.getTileCoordForTileUrlFunction(h,n),f=new Wu(o,p,n,c,h,d,this.getTilePixelRatio(r),this.getGutter(),function(t,e,i,r){return this.getTileInternal(t,e,i,r,o)}.bind(this),this.reprojectionErrorThreshold_,this.renderReprojectionEdges_);return f.key=u,s?(f.interimTile=s,f.refreshInterimChain(),a.replace(l,f)):a.set(l,f),f}return this.getTileInternal(t,e,i,r,o||n)},e.prototype.getTileInternal=function(t,e,i,r,n){var o=null,s=El(t,e,i),a=this.getKey();if(this.tileCache.containsKey(s)){if((o=this.tileCache.get(s)).key!=a){var h=o;o=this.createTile_(t,e,i,r,n,a),h.getState()==On.IDLE?o.interimTile=h.interimTile:o.interimTile=h,o.refreshInterimChain(),this.tileCache.replace(s,o)}}else o=this.createTile_(t,e,i,r,n,a),this.tileCache.set(s,o);return o},e.prototype.setRenderReprojectionEdges=function(t){if(this.renderReprojectionEdges_!=t){for(var e in this.renderReprojectionEdges_=t,this.tileCacheForProjection)this.tileCacheForProjection[e].clear();this.changed()}},e.prototype.setTileGridForProjection=function(t,e){var i=Ee(t);if(i){var r=o(i);r in this.tileGridForProjection||(this.tileGridForProjection[r]=e)}},e}(qu),$u=function(t){function e(e){var i=void 0!==e.hidpi&&e.hidpi;t.call(this,{cacheSize:e.cacheSize,crossOrigin:"anonymous",opaque:!0,projection:Ee("EPSG:3857"),reprojectionErrorThreshold:e.reprojectionErrorThreshold,state:ro.LOADING,tileLoadFunction:e.tileLoadFunction,tilePixelRatio:i?2:1,wrapX:void 0===e.wrapX||e.wrapX,transition:e.transition}),this.hidpi_=i,this.culture_=void 0!==e.culture?e.culture:"en-us",this.maxZoom_=void 0!==e.maxZoom?e.maxZoom:-1,this.apiKey_=e.key,this.imagerySet_=e.imagerySet,Uu("https://dev.virtualearth.net/REST/v1/Imagery/Metadata/"+this.imagerySet_+"?uriScheme=https&include=ImageryProviders&key="+this.apiKey_+"&c="+this.culture_,this.handleImageryMetadataResponse.bind(this),void 0,"jsonp")}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getApiKey=function(){return this.apiKey_},e.prototype.getImagerySet=function(){return this.imagerySet_},e.prototype.handleImageryMetadataResponse=function(t){if(200==t.statusCode&&"OK"==t.statusDescription&&"ValidCredentials"==t.authenticationResultCode&&1==t.resourceSets.length&&1==t.resourceSets[0].resources.length){var e=t.resourceSets[0].resources[0],i=-1==this.maxZoom_?e.zoomMax:this.maxZoom_,r=Nl(this.getProjection()),n=this.hidpi_?2:1,o=e.imageWidth==e.imageHeight?e.imageWidth/n:[e.imageWidth/n,e.imageHeight/n],s=Ml({extent:r,minZoom:e.zoomMin,maxZoom:i,tileSize:o});this.tileGrid=s;var a=this.culture_,h=this.hidpi_;if(this.tileUrlFunction=Du(e.imageUrlSubdomains.map(function(t){var i=[0,0,0],r=e.imageUrl.replace("{subdomain}",t).replace("{culture}",a);return function(t,e,n){if(t){xl(t[0],t[1],-t[2]-1,i);var o=r;return h&&(o+="&dpi=d1&device=mobile"),o.replace("{quadkey}",function(t){var e,i,r=t[0],n=new Array(r),o=1<>=1;return n.join("")}(i))}}})),e.imageryProviders){var l=Le(Ee("EPSG:4326"),this.getProjection());this.setAttributions(function(t){var i=[],r=t.viewState,n=this.getTileGrid().getTileCoordForCoordAndResolution(r.center,r.resolution)[0];return e.imageryProviders.map(function(e){for(var r=!1,o=e.coverageAreas,s=0,a=o.length;s=h.zoomMin&&n<=h.zoomMax){var u=h.bbox;if(Pt(Ft([u[1],u[0],u[3],u[2]],l),t.extent)){r=!0;break}}}r&&i.push(e.attribution)}),i.push('Terms of Use'),i}.bind(this))}this.setState(ro.READY)}else this.setState(ro.ERROR)},e}(Qu),tp=function(t){function e(e){var i=e||{},r=void 0!==i.projection?i.projection:"EPSG:3857",n=void 0!==i.tileGrid?i.tileGrid:Ml({extent:Nl(r),maxZoom:i.maxZoom,minZoom:i.minZoom,tileSize:i.tileSize});t.call(this,{attributions:i.attributions,cacheSize:i.cacheSize,crossOrigin:i.crossOrigin,opaque:i.opaque,projection:r,reprojectionErrorThreshold:i.reprojectionErrorThreshold,tileGrid:n,tileLoadFunction:i.tileLoadFunction,tilePixelRatio:i.tilePixelRatio,tileUrlFunction:i.tileUrlFunction,url:i.url,urls:i.urls,wrapX:void 0===i.wrapX||i.wrapX,transition:i.transition,attributionsCollapsible:i.attributionsCollapsible})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(Qu),ep=function(t){function e(e){t.call(this,{attributions:e.attributions,cacheSize:e.cacheSize,crossOrigin:e.crossOrigin,maxZoom:void 0!==e.maxZoom?e.maxZoom:18,minZoom:e.minZoom,projection:e.projection,wrapX:e.wrapX}),this.account_=e.account,this.mapId_=e.map||"",this.config_=e.config||{},this.templateCache_={},this.initializeMap_()}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getConfig=function(){return this.config_},e.prototype.updateConfig=function(t){u(this.config_,t),this.initializeMap_()},e.prototype.setConfig=function(t){this.config_=t||{},this.initializeMap_()},e.prototype.initializeMap_=function(){var t=JSON.stringify(this.config_);if(this.templateCache_[t])this.applyTemplate_(this.templateCache_[t]);else{var e="https://"+this.account_+".carto.com/api/v1/map";this.mapId_&&(e+="/named/"+this.mapId_);var i=new XMLHttpRequest;i.addEventListener("load",this.handleInitResponse_.bind(this,t)),i.addEventListener("error",this.handleInitError_.bind(this)),i.open("POST",e),i.setRequestHeader("Content-type","application/json"),i.send(JSON.stringify(this.config_))}},e.prototype.handleInitResponse_=function(t,e){var i=e.target;if(!i.status||i.status>=200&&i.status<300){var r;try{r=JSON.parse(i.responseText)}catch(t){return void this.setState(ro.ERROR)}this.applyTemplate_(r),this.templateCache_[t]=r,this.setState(ro.READY)}else this.setState(ro.ERROR)},e.prototype.handleInitError_=function(t){this.setState(ro.ERROR)},e.prototype.applyTemplate_=function(t){var e="https://"+t.cdn_url.https+"/"+this.account_+"/api/v1/map/"+t.layergroupid+"/{z}/{x}/{y}.png";this.setUrl(e)},e}(tp),ip={ADDFEATURE:"addfeature",CHANGEFEATURE:"changefeature",CLEAR:"clear",REMOVEFEATURE:"removefeature"},rp=function(t){function e(e,i){t.call(this,e),this.feature=i}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P),np=function(t){function e(e){var i=e||{};t.call(this,{attributions:i.attributions,projection:void 0,state:ro.READY,wrapX:void 0===i.wrapX||i.wrapX}),this.loader_=I,this.format_=i.format,this.overlaps_=void 0==i.overlaps||i.overlaps,this.url_=i.url,void 0!==i.loader?this.loader_=i.loader:void 0!==this.url_&&(Y(this.format_,7),this.loader_=Zl(this.url_,this.format_)),this.strategy_=void 0!==i.strategy?i.strategy:ql;var r,n,o=void 0===i.useSpatialIndex||i.useSpatialIndex;this.featuresRtree_=o?new tl:null,this.loadedExtentsRtree_=new tl,this.nullGeometryFeatures_={},this.idIndex_={},this.undefIdIndex_={},this.featureChangeKeys_={},this.featuresCollection_=null,Array.isArray(i.features)?n=i.features:i.features&&(n=(r=i.features).getArray()),o||void 0!==r||(r=new U(n)),void 0!==n&&this.addFeaturesInternal(n),void 0!==r&&this.bindFeaturesCollection_(r)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.addFeature=function(t){this.addFeatureInternal(t),this.changed()},e.prototype.addFeatureInternal=function(t){var e=o(t);if(this.addToIndex_(e,t)){this.setupChangeEvents_(e,t);var i=t.getGeometry();if(i){var r=i.getExtent();this.featuresRtree_&&this.featuresRtree_.insert(r,t)}else this.nullGeometryFeatures_[e]=t;this.dispatchEvent(new rp(ip.ADDFEATURE,t))}},e.prototype.setupChangeEvents_=function(t,e){this.featureChangeKeys_[t]=[v(e,M.CHANGE,this.handleFeatureChange_,this),v(e,l,this.handleFeatureChange_,this)]},e.prototype.addToIndex_=function(t,e){var i=!0,r=e.getId();return void 0!==r?r.toString()in this.idIndex_?i=!1:this.idIndex_[r.toString()]=e:(Y(!(t in this.undefIdIndex_),30),this.undefIdIndex_[t]=e),i},e.prototype.addFeatures=function(t){this.addFeaturesInternal(t),this.changed()},e.prototype.addFeaturesInternal=function(t){for(var e=[],i=[],r=[],n=0,s=t.length;n=0;--i){var r=this.geometryFunction(t[i]);r?Hi(e,r.getCoordinates()):t.splice(i,1)}tr(e,1/t.length);var n=new B(new ci(e));return n.set("features",t),n},e}(np),sp=function(t){function e(e,i,r,n,o,s){var a=e.getExtent(),h=i.getExtent(),l=h?wt(r,h):r,u=Yu(e,i,Tt(l),n),p=new zu(e,i,l,a,u*vs),c=s(p.calculateSourceExtent(),u,o),d=xs.LOADED;c&&(d=xs.IDLE);var f=c?c.getPixelRatio():1;t.call(this,r,n,f,d),this.targetProj_=i,this.maxSourceExtent_=a,this.triangulation_=p,this.targetResolution_=n,this.targetExtent_=r,this.sourceImage_=c,this.sourcePixelRatio_=f,this.canvas_=null,this.sourceListenerKey_=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.state==xs.LOADING&&this.unlistenSource_(),t.prototype.disposeInternal.call(this)},e.prototype.getImage=function(){return this.canvas_},e.prototype.getProjection=function(){return this.targetProj_},e.prototype.reproject_=function(){var t=this.sourceImage_.getState();if(t==xs.LOADED){var e=Ot(this.targetExtent_)/this.targetResolution_,i=Rt(this.targetExtent_)/this.targetResolution_;this.canvas_=Vu(e,i,this.sourcePixelRatio_,this.sourceImage_.getResolution(),this.maxSourceExtent_,this.targetResolution_,this.targetExtent_,this.triangulation_,[{extent:this.sourceImage_.getExtent(),image:this.sourceImage_.getImage()}],0)}this.state=t,this.changed()},e.prototype.load=function(){if(this.state==xs.IDLE){this.state=xs.LOADING,this.changed();var t=this.sourceImage_.getState();t==xs.LOADED||t==xs.ERROR?this.reproject_():(this.sourceListenerKey_=v(this.sourceImage_,M.CHANGE,function(t){var e=this.sourceImage_.getState();e!=xs.LOADED&&e!=xs.ERROR||(this.unlistenSource_(),this.reproject_())},this),this.sourceImage_.load())}},e.prototype.unlistenSource_=function(){E(this.sourceListenerKey_),this.sourceListenerKey_=null},e}(ms),ap="imageloadstart",hp="imageloadend",lp="imageloaderror",up=function(t){function e(e,i){t.call(this,e),this.image=i}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P);function pp(t,e){t.getImage().src=e}var cp=function(t){function e(e){t.call(this,{attributions:e.attributions,projection:e.projection,state:e.state}),this.resolutions_=void 0!==e.resolutions?e.resolutions:null,this.reprojectedImage_=null,this.reprojectedRevision_=0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getResolutions=function(){return this.resolutions_},e.prototype.findNearestResolution=function(t){if(this.resolutions_){var e=z(this.resolutions_,t,0);t=this.resolutions_[e]}return t},e.prototype.getImage=function(t,e,i,r){var n=this.getProjection();if(n&&r&&!Ie(n,r)){if(this.reprojectedImage_){if(this.reprojectedRevision_==this.getRevision()&&Ie(this.reprojectedImage_.getProjection(),r)&&this.reprojectedImage_.getResolution()==e&&dt(this.reprojectedImage_.getExtent(),t))return this.reprojectedImage_;this.reprojectedImage_.dispose(),this.reprojectedImage_=null}return this.reprojectedImage_=new sp(n,r,t,e,i,function(t,e,i){return this.getImageInternal(t,e,i,n)}.bind(this)),this.reprojectedRevision_=this.getRevision(),this.reprojectedImage_}return n&&(r=n),this.getImageInternal(t,e,i,r)},e.prototype.getImageInternal=function(t,e,i,n){return r()},e.prototype.handleImageChange=function(t){var e=t.target;switch(e.getState()){case xs.LOADING:this.loading=!0,this.dispatchEvent(new up(ap,e));break;case xs.LOADED:this.loading=!1,this.dispatchEvent(new up(hp,e));break;case xs.ERROR:this.loading=!1,this.dispatchEvent(new up(lp,e))}},e}(wl),dp=function(t){function e(e,i,r,n,o,s){t.call(this,e,i,r,xs.IDLE),this.src_=n,this.image_=new Image,null!==o&&(this.image_.crossOrigin=o),this.imageListenerKeys_=null,this.state=xs.IDLE,this.imageLoadFunction_=s}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getImage=function(){return this.image_},e.prototype.handleImageError_=function(){this.state=xs.ERROR,this.unlistenImage_(),this.changed()},e.prototype.handleImageLoad_=function(){void 0===this.resolution&&(this.resolution=Rt(this.extent)/this.image_.height),this.state=xs.LOADED,this.unlistenImage_(),this.changed()},e.prototype.load=function(){this.state!=xs.IDLE&&this.state!=xs.ERROR||(this.state=xs.LOADING,this.changed(),this.imageListenerKeys_=[m(this.image_,M.ERROR,this.handleImageError_,this),m(this.image_,M.LOAD,this.handleImageLoad_,this)],this.imageLoadFunction_(this,this.src_))},e.prototype.setImage=function(t){this.image_=t},e.prototype.unlistenImage_=function(){this.imageListenerKeys_.forEach(E),this.imageListenerKeys_=null},e}(ms);function fp(t,e){var i=[];Object.keys(e).forEach(function(t){null!==e[t]&&void 0!==e[t]&&i.push(t+"="+encodeURIComponent(e[t]))});var r=i.join("&");return(t=-1===(t=t.replace(/[?&]$/,"")).indexOf("?")?t+"?":t+"&")+r}var _p=function(t){function e(e){var i=e||{};t.call(this,{attributions:i.attributions,projection:i.projection,resolutions:i.resolutions}),this.crossOrigin_=void 0!==i.crossOrigin?i.crossOrigin:null,this.hidpi_=void 0===i.hidpi||i.hidpi,this.url_=i.url,this.imageLoadFunction_=void 0!==i.imageLoadFunction?i.imageLoadFunction:pp,this.params_=i.params||{},this.image_=null,this.imageSize_=[0,0],this.renderedRevision_=0,this.ratio_=void 0!==i.ratio?i.ratio:1.5}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getParams=function(){return this.params_},e.prototype.getImageInternal=function(t,e,i,r){if(void 0===this.url_)return null;e=this.findNearestResolution(e),i=this.hidpi_?i:1;var n=this.image_;if(n&&this.renderedRevision_==this.getRevision()&&n.getResolution()==e&&n.getPixelRatio()==i&&ot(n.getExtent(),t))return n;var o={F:"image",FORMAT:"PNG32",TRANSPARENT:!0};u(o,this.params_);var s=((t=t.slice())[0]+t[2])/2,a=(t[1]+t[3])/2;if(1!=this.ratio_){var h=this.ratio_*Ot(t)/2,l=this.ratio_*Rt(t)/2;t[0]=s-h,t[1]=a-l,t[2]=s+h,t[3]=a+l}var p=e/i,c=Math.ceil(Ot(t)/p),d=Math.ceil(Rt(t)/p);t[0]=s-p*c/2,t[2]=s+p*c/2,t[1]=a-p*d/2,t[3]=a+p*d/2,this.imageSize_[0]=c,this.imageSize_[1]=d;var f=this.getRequestUrl_(t,this.imageSize_,i,r,o);return this.image_=new dp(t,e,i,f,this.crossOrigin_,this.imageLoadFunction_),this.renderedRevision_=this.getRevision(),v(this.image_,M.CHANGE,this.handleImageChange,this),this.image_},e.prototype.getImageLoadFunction=function(){return this.imageLoadFunction_},e.prototype.getRequestUrl_=function(t,e,i,r,n){var o=r.getCode().split(":").pop();n.SIZE=e[0]+","+e[1],n.BBOX=t.join(","),n.BBOXSR=o,n.IMAGESR=o,n.DPI=Math.round(90*i);var s=this.url_,a=s.replace(/MapServer\/?$/,"MapServer/export").replace(/ImageServer\/?$/,"ImageServer/exportImage");return a==s&&Y(!1,50),fp(a,n)},e.prototype.getUrl=function(){return this.url_},e.prototype.setImageLoadFunction=function(t){this.image_=null,this.imageLoadFunction_=t,this.changed()},e.prototype.setUrl=function(t){t!=this.url_&&(this.url_=t,this.image_=null,this.changed())},e.prototype.updateParams=function(t){u(this.params_,t),this.image_=null,this.changed()},e}(cp),gp=function(t){function e(e){var i=e||{};t.call(this,{attributions:i.attributions,projection:i.projection,resolutions:i.resolutions,state:i.state}),this.canvasFunction_=i.canvasFunction,this.canvas_=null,this.renderedRevision_=0,this.ratio_=void 0!==i.ratio?i.ratio:1.5}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getImageInternal=function(t,e,i,r){e=this.findNearestResolution(e);var n=this.canvas_;if(n&&this.renderedRevision_==this.getRevision()&&n.getResolution()==e&&n.getPixelRatio()==i&&ot(n.getExtent(),t))return n;Mt(t=t.slice(),this.ratio_);var o=[Ot(t)/e*i,Rt(t)/e*i],s=this.canvasFunction_.call(this,t,e,i,o,r);return s&&(n=new Es(t,e,i,s)),this.canvas_=n,this.renderedRevision_=this.getRevision(),n},e}(cp);var yp=function(t){function e(e){t.call(this,{projection:e.projection,resolutions:e.resolutions}),this.crossOrigin_=void 0!==e.crossOrigin?e.crossOrigin:null,this.displayDpi_=void 0!==e.displayDpi?e.displayDpi:96,this.params_=e.params||{},this.url_=e.url,this.imageLoadFunction_=void 0!==e.imageLoadFunction?e.imageLoadFunction:pp,this.hidpi_=void 0===e.hidpi||e.hidpi,this.metersPerUnit_=void 0!==e.metersPerUnit?e.metersPerUnit:1,this.ratio_=void 0!==e.ratio?e.ratio:1,this.useOverlay_=void 0!==e.useOverlay&&e.useOverlay,this.image_=null,this.renderedRevision_=0}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getParams=function(){return this.params_},e.prototype.getImageInternal=function(t,e,i,r){e=this.findNearestResolution(e),i=this.hidpi_?i:1;var n=this.image_;if(n&&this.renderedRevision_==this.getRevision()&&n.getResolution()==e&&n.getPixelRatio()==i&&ot(n.getExtent(),t))return n;1!=this.ratio_&&Mt(t=t.slice(),this.ratio_);var o=[Ot(t)/e*i,Rt(t)/e*i];if(void 0!==this.url_){var s=this.getUrl(this.url_,this.params_,t,o,r);v(n=new dp(t,e,i,s,this.crossOrigin_,this.imageLoadFunction_),M.CHANGE,this.handleImageChange,this)}else n=null;return this.image_=n,this.renderedRevision_=this.getRevision(),n},e.prototype.getImageLoadFunction=function(){return this.imageLoadFunction_},e.prototype.updateParams=function(t){u(this.params_,t),this.changed()},e.prototype.getUrl=function(t,e,i,r,n){var o=function(t,e,i,r){var n=Ot(t),o=Rt(t),s=e[0],a=e[1],h=.0254/r;return a*n>s*o?n*i/(s*h):o*i/(a*h)}(i,r,this.metersPerUnit_,this.displayDpi_),s=Tt(i),a={OPERATION:this.useOverlay_?"GETDYNAMICMAPOVERLAYIMAGE":"GETMAPIMAGE",VERSION:"2.0.0",LOCALE:"en",CLIENTAGENT:"ol/source/ImageMapGuide source",CLIP:"1",SETDISPLAYDPI:this.displayDpi_,SETDISPLAYWIDTH:Math.round(r[0]),SETDISPLAYHEIGHT:Math.round(r[1]),SETVIEWSCALE:o,SETVIEWCENTERX:s[0],SETVIEWCENTERY:s[1]};return u(a,e),fp(t,a)},e.prototype.setImageLoadFunction=function(t){this.image_=null,this.imageLoadFunction_=t,this.changed()},e}(cp),vp=function(t){function e(e){var i=void 0!==e.crossOrigin?e.crossOrigin:null,r=void 0!==e.imageLoadFunction?e.imageLoadFunction:pp;t.call(this,{attributions:e.attributions,projection:Ee(e.projection)}),this.url_=e.url,this.imageExtent_=e.imageExtent,this.image_=new dp(this.imageExtent_,void 0,1,this.url_,i,r),this.imageSize_=e.imageSize?e.imageSize:null,v(this.image_,M.CHANGE,this.handleImageChange,this)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getImageExtent=function(){return this.imageExtent_},e.prototype.getImageInternal=function(t,e,i,r){return Pt(t,this.image_.getExtent())?this.image_:null},e.prototype.getUrl=function(){return this.url_},e.prototype.handleImageChange=function(e){if(this.image_.getState()==xs.LOADED){var i,r,n=this.image_.getExtent(),o=this.image_.getImage();this.imageSize_?(i=this.imageSize_[0],r=this.imageSize_[1]):(i=o.width,r=o.height);var s=Rt(n)/r,a=Math.ceil(Ot(n)/s);if(a!=i){var h=Jn(a,r),l=h.canvas;h.drawImage(o,0,0,i,r,0,0,l.width,l.height),this.image_.setImage(l)}}t.prototype.handleImageChange.call(this,e)},e}(cp),mp="1.3.0",xp="carmentaserver",Ep="geoserver",Sp="mapserver",Tp="qgis",Cp=[101,101],Rp=function(t){function e(e){var i=e||{};t.call(this,{attributions:i.attributions,projection:i.projection,resolutions:i.resolutions}),this.crossOrigin_=void 0!==i.crossOrigin?i.crossOrigin:null,this.url_=i.url,this.imageLoadFunction_=void 0!==i.imageLoadFunction?i.imageLoadFunction:pp,this.params_=i.params||{},this.v13_=!0,this.updateV13_(),this.serverType_=i.serverType,this.hidpi_=void 0===i.hidpi||i.hidpi,this.image_=null,this.imageSize_=[0,0],this.renderedRevision_=0,this.ratio_=void 0!==i.ratio?i.ratio:1.5}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getGetFeatureInfoUrl=function(t,e,i,r){if(void 0!==this.url_){var n=Ee(i),o=this.getProjection();o&&o!==n&&(e=Yu(o,n,t,e),t=Pe(t,n,o));var s=Ct(t,e,0,Cp),a={SERVICE:"WMS",VERSION:mp,REQUEST:"GetFeatureInfo",FORMAT:"image/png",TRANSPARENT:!0,QUERY_LAYERS:this.params_.LAYERS};u(a,this.params_,r);var h=Math.floor((t[0]-s[0])/e),l=Math.floor((s[3]-t[1])/e);return a[this.v13_?"I":"X"]=h,a[this.v13_?"J":"Y"]=l,this.getRequestUrl_(s,Cp,1,o||n,a)}},e.prototype.getParams=function(){return this.params_},e.prototype.getImageInternal=function(t,e,i,r){if(void 0===this.url_)return null;e=this.findNearestResolution(e),1==i||this.hidpi_&&void 0!==this.serverType_||(i=1);var n=e/i,o=Tt(t),s=Ct(o,n,0,[Math.ceil(Ot(t)/n),Math.ceil(Rt(t)/n)]),a=Ct(o,n,0,[Math.ceil(this.ratio_*Ot(t)/n),Math.ceil(this.ratio_*Rt(t)/n)]),h=this.image_;if(h&&this.renderedRevision_==this.getRevision()&&h.getResolution()==e&&h.getPixelRatio()==i&&ot(h.getExtent(),s))return h;var l={SERVICE:"WMS",VERSION:mp,REQUEST:"GetMap",FORMAT:"image/png",TRANSPARENT:!0};u(l,this.params_),this.imageSize_[0]=Math.round(Ot(a)/n),this.imageSize_[1]=Math.round(Rt(a)/n);var p=this.getRequestUrl_(a,this.imageSize_,i,r,l);return this.image_=new dp(a,e,i,p,this.crossOrigin_,this.imageLoadFunction_),this.renderedRevision_=this.getRevision(),v(this.image_,M.CHANGE,this.handleImageChange,this),this.image_},e.prototype.getImageLoadFunction=function(){return this.imageLoadFunction_},e.prototype.getRequestUrl_=function(t,e,i,r,n){if(Y(void 0!==this.url_,9),n[this.v13_?"CRS":"SRS"]=r.getCode(),"STYLES"in this.params_||(n.STYLES=""),1!=i)switch(this.serverType_){case Ep:var o=90*i+.5|0;"FORMAT_OPTIONS"in n?n.FORMAT_OPTIONS+=";dpi:"+o:n.FORMAT_OPTIONS="dpi:"+o;break;case Sp:n.MAP_RESOLUTION=90*i;break;case xp:case Tp:n.DPI=90*i;break;default:Y(!1,8)}n.WIDTH=e[0],n.HEIGHT=e[1];var s,a=r.getAxisOrientation();return s=this.v13_&&"ne"==a.substr(0,2)?[t[1],t[0],t[3],t[2]]:t,n.BBOX=s.join(","),fp(this.url_,n)},e.prototype.getUrl=function(){return this.url_},e.prototype.setImageLoadFunction=function(t){this.image_=null,this.imageLoadFunction_=t,this.changed()},e.prototype.setUrl=function(t){t!=this.url_&&(this.url_=t,this.image_=null,this.changed())},e.prototype.updateParams=function(t){u(this.params_,t),this.updateV13_(),this.image_=null,this.changed()},e.prototype.updateV13_=function(){var t=this.params_.VERSION||mp;this.v13_=Ki(t,"1.3")>=0},e}(cp),wp='© OpenStreetMap contributors.',Ip=function(t){function e(e){var i,r=e||{};i=void 0!==r.attributions?r.attributions:[wp];var n=void 0!==r.crossOrigin?r.crossOrigin:"anonymous",o=void 0!==r.url?r.url:"https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png";t.call(this,{attributions:i,cacheSize:r.cacheSize,crossOrigin:n,opaque:void 0===r.opaque||r.opaque,maxZoom:void 0!==r.maxZoom?r.maxZoom:19,reprojectionErrorThreshold:r.reprojectionErrorThreshold,tileLoadFunction:r.tileLoadFunction,url:o,wrapX:r.wrapX,attributionsCollapsible:!1})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(tp),Lp=i(2),Op=function(t){function e(e){var i=e||{};t.call(this,i),this.type=Ss.IMAGE}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(xo);Op.prototype.getSource;var Pp=Op,bp="preload",Mp="useInterimTilesOnError",Fp=function(t){function e(e){var i=e||{},r=u({},i);delete r.preload,delete r.useInterimTilesOnError,t.call(this,r),this.setPreload(void 0!==i.preload?i.preload:0),this.setUseInterimTilesOnError(void 0===i.useInterimTilesOnError||i.useInterimTilesOnError),this.type=Ss.TILE}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getPreload=function(){return this.get(bp)},e.prototype.setPreload=function(t){this.set(bp,t)},e.prototype.getUseInterimTilesOnError=function(){return this.get(Mp)},e.prototype.setUseInterimTilesOnError=function(t){this.set(Mp,t)},e}(xo);Fp.prototype.getSource;var Ap=Fp,Np="beforeoperations",Gp="afteroperations",Dp={PIXEL:"pixel",IMAGE:"image"},kp=function(t){function e(e,i,r){t.call(this,e),this.extent=i.extent,this.resolution=i.viewState.resolution/i.pixelRatio,this.data=r}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P),jp=null;function Up(t,e,i){if(!t.prepareFrame(e,i))return null;var r=e.size[0],n=e.size[1];if(jp){var o=jp.canvas;o.width!==r||o.height!==n?jp=Jn(r,n):jp.clearRect(0,0,r,n)}else jp=Jn(r,n);return t.composeFrame(e,i,jp),jp.getImageData(0,0,r,n)}function Yp(t){var e=t,i=t,r=t,n=null;return"function"==typeof e.getTile?n=function(t){var e=new Ap({source:t});return new ha(e)}(e):"function"==typeof i.getImage?n=function(t){var e=new Pp({source:t});return new ra(e)}(i):r.getType()===Ss.TILE?n=new ha(r):r.getType()!=Ss.IMAGE&&r.getType()!=Ss.VECTOR||(n=new ra(r)),n}var Bp=function(t){function e(e){t.call(this,{projection:null}),this.worker_=null,this.operationType_=void 0!==e.operationType?e.operationType:Dp.PIXEL,this.threads_=void 0!==e.threads?e.threads:1,this.renderers_=function(t){for(var e=t.length,i=new Array(e),r=0;rStamen Design, under CC BY 3.0.',wp],Xp={terrain:{extension:"jpg",opaque:!0},"terrain-background":{extension:"jpg",opaque:!0},"terrain-labels":{extension:"png",opaque:!1},"terrain-lines":{extension:"png",opaque:!1},"toner-background":{extension:"png",opaque:!0},toner:{extension:"png",opaque:!0},"toner-hybrid":{extension:"png",opaque:!1},"toner-labels":{extension:"png",opaque:!1},"toner-lines":{extension:"png",opaque:!1},"toner-lite":{extension:"png",opaque:!0},watercolor:{extension:"jpg",opaque:!0}},zp={terrain:{minZoom:4,maxZoom:18},toner:{minZoom:0,maxZoom:20},watercolor:{minZoom:1,maxZoom:16}},Wp=function(t){function e(e){var i=e.layer.indexOf("-"),r=-1==i?e.layer:e.layer.slice(0,i),n=zp[r],o=Xp[e.layer],s=void 0!==e.url?e.url:"https://stamen-tiles-{a-d}.a.ssl.fastly.net/"+e.layer+"/{z}/{x}/{y}."+o.extension;t.call(this,{attributions:Vp,cacheSize:e.cacheSize,crossOrigin:"anonymous",maxZoom:void 0!=e.maxZoom?e.maxZoom:n.maxZoom,minZoom:void 0!=e.minZoom?e.minZoom:n.minZoom,opaque:o.opaque,reprojectionErrorThreshold:e.reprojectionErrorThreshold,tileLoadFunction:e.tileLoadFunction,url:s,wrapX:e.wrapX})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(tp);function Kp(t,e,i){var r=this.getTileGrid();if(r||(r=this.getTileGridForProjection(i)),!(r.getResolutions().length<=t[0])){var n=r.getTileCoordExtent(t,this.tmpExtent_),o=ho(r.getTileSize(t[0]),this.tmpSize);1!=e&&(o=ao(o,e,this.tmpSize));var s={F:"image",FORMAT:"PNG32",TRANSPARENT:!0};return u(s,this.params_),this.getRequestUrl_(t,o,n,e,i,s)}}var Hp=function(t){function e(e){var i=e||{};t.call(this,{attributions:i.attributions,cacheSize:i.cacheSize,crossOrigin:i.crossOrigin,projection:i.projection,reprojectionErrorThreshold:i.reprojectionErrorThreshold,tileGrid:i.tileGrid,tileLoadFunction:i.tileLoadFunction,tileUrlFunction:Kp,url:i.url,urls:i.urls,wrapX:void 0===i.wrapX||i.wrapX,transition:i.transition}),this.params_=i.params||{},this.tmpExtent_=[1/0,1/0,-1/0,-1/0],this.setKey(this.getKeyForParams_())}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getKeyForParams_=function(){var t=0,e=[];for(var i in this.params_)e[t++]=i+"-"+this.params_[i];return e.join("/")},e.prototype.getParams=function(){return this.params_},e.prototype.getRequestUrl_=function(t,e,i,r,n,o){var s=this.urls;if(s){var a,h=n.getCode().split(":").pop();if(o.SIZE=e[0]+","+e[1],o.BBOX=i.join(","),o.BBOXSR=h,o.IMAGESR=h,o.DPI=Math.round(o.DPI?o.DPI*r:90*r),1==s.length)a=s[0];else a=s[Xt(Tl(t),s.length)];return fp(a.replace(/MapServer\/?$/,"MapServer/export").replace(/ImageServer\/?$/,"ImageServer/exportImage"),o)}},e.prototype.getTilePixelRatio=function(t){return t},e.prototype.updateParams=function(t){u(this.params_,t),this.setKey(this.getKeyForParams_())},e}(Qu),Zp=function(t){function e(e,i,r){t.call(this,e,On.LOADED),this.tileSize_=i,this.text_=r,this.canvas_=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getImage=function(){if(this.canvas_)return this.canvas_;var t=this.tileSize_,e=Jn(t[0],t[1]);return e.strokeStyle="black",e.strokeRect(.5,.5,t[0]+.5,t[1]+.5),e.fillStyle="black",e.textAlign="center",e.textBaseline="middle",e.font="24px sans-serif",e.fillText(this.text_,t[0]/2,t[1]/2),this.canvas_=e.canvas,e.canvas},e.prototype.load=function(){},e}(yl),qp=function(t){function e(e){t.call(this,{opaque:!1,projection:e.projection,tileGrid:e.tileGrid,wrapX:void 0===e.wrapX||e.wrapX})}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getTile=function(t,e,i){var r=El(t,e,i);if(this.tileCache.containsKey(r))return this.tileCache.get(r);var n=ho(this.tileGrid.getTileSize(t)),o=[t,e,i],s=this.getTileCoordForTileUrlFunction(o),a=s?this.getTileCoordForTileUrlFunction(s).toString():"",h=new Zp(o,n,a);return this.tileCache.set(r,h),h},e}(kl),Jp=function(t){function e(e){if(t.call(this,{attributions:e.attributions,cacheSize:e.cacheSize,crossOrigin:e.crossOrigin,projection:Ee("EPSG:3857"),reprojectionErrorThreshold:e.reprojectionErrorThreshold,state:ro.LOADING,tileLoadFunction:e.tileLoadFunction,wrapX:void 0===e.wrapX||e.wrapX,transition:e.transition}),this.tileJSON_=null,e.url)if(e.jsonp)Uu(e.url,this.handleTileJSONResponse.bind(this),this.handleTileJSONError.bind(this));else{var i=new XMLHttpRequest;i.addEventListener("load",this.onXHRLoad_.bind(this)),i.addEventListener("error",this.onXHRError_.bind(this)),i.open("GET",e.url),i.send()}else e.tileJSON?this.handleTileJSONResponse(e.tileJSON):Y(!1,51)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.onXHRLoad_=function(t){var e=t.target;if(!e.status||e.status>=200&&e.status<300){var i;try{i=JSON.parse(e.responseText)}catch(t){return void this.handleTileJSONError()}this.handleTileJSONResponse(i)}else this.handleTileJSONError()},e.prototype.onXHRError_=function(t){this.handleTileJSONError()},e.prototype.getTileJSON=function(){return this.tileJSON_},e.prototype.handleTileJSONResponse=function(t){var e,i=Ee("EPSG:4326"),r=this.getProjection();if(void 0!==t.bounds){var n=Le(i,r);e=Ft(t.bounds,n)}var o=t.minzoom||0,s=t.maxzoom||22,a=Ml({extent:Nl(r),maxZoom:s,minZoom:o});if(this.tileGrid=a,this.tileUrlFunction=Gu(t.tiles,a),void 0!==t.attribution&&!this.getAttributions()){var h=void 0!==e?e:i.getExtent();this.setAttributions(function(e){return Pt(h,e.extent)?[t.attribution]:null})}this.tileJSON_=t,this.setState(ro.READY)},e.prototype.handleTileJSONError=function(){this.setState(ro.ERROR)},e}(Qu);function Qp(t,e,i){var r=this.getTileGrid();if(r||(r=this.getTileGridForProjection(i)),!(r.getResolutions().length<=t[0])){1==e||this.hidpi_&&void 0!==this.serverType_||(e=1);var n=r.getResolution(t[0]),o=r.getTileCoordExtent(t,this.tmpExtent_),s=ho(r.getTileSize(t[0]),this.tmpSize),a=this.gutter_;0!==a&&(s=so(s,a,this.tmpSize),o=et(o,n*a,o)),1!=e&&(s=ao(s,e,this.tmpSize));var h={SERVICE:"WMS",VERSION:mp,REQUEST:"GetMap",FORMAT:"image/png",TRANSPARENT:!0};return u(h,this.params_),this.getRequestUrl_(t,s,o,e,i,h)}}var $p=function(t){function e(e){var i=e||{},r=i.params||{},n=!("TRANSPARENT"in r)||r.TRANSPARENT;t.call(this,{attributions:i.attributions,cacheSize:i.cacheSize,crossOrigin:i.crossOrigin,opaque:!n,projection:i.projection,reprojectionErrorThreshold:i.reprojectionErrorThreshold,tileClass:i.tileClass,tileGrid:i.tileGrid,tileLoadFunction:i.tileLoadFunction,tileUrlFunction:Qp,url:i.url,urls:i.urls,wrapX:void 0===i.wrapX||i.wrapX,transition:i.transition}),this.gutter_=void 0!==i.gutter?i.gutter:0,this.params_=r,this.v13_=!0,this.serverType_=i.serverType,this.hidpi_=void 0===i.hidpi||i.hidpi,this.tmpExtent_=[1/0,1/0,-1/0,-1/0],this.updateV13_(),this.setKey(this.getKeyForParams_())}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getGetFeatureInfoUrl=function(t,e,i,r){var n=Ee(i),o=this.getProjection(),s=this.getTileGrid();s||(s=this.getTileGridForProjection(n));var a=s.getTileCoordForCoordAndResolution(t,e);if(!(s.getResolutions().length<=a[0])){var h=s.getResolution(a[0]),l=s.getTileCoordExtent(a,this.tmpExtent_),p=ho(s.getTileSize(a[0]),this.tmpSize),c=this.gutter_;0!==c&&(p=so(p,c,this.tmpSize),l=et(l,h*c,l)),o&&o!==n&&(h=Yu(o,n,t,h),l=be(l,n,o),t=Pe(t,n,o));var d={SERVICE:"WMS",VERSION:mp,REQUEST:"GetFeatureInfo",FORMAT:"image/png",TRANSPARENT:!0,QUERY_LAYERS:this.params_.LAYERS};u(d,this.params_,r);var f=Math.floor((t[0]-l[0])/h),_=Math.floor((l[3]-t[1])/h);return d[this.v13_?"I":"X"]=f,d[this.v13_?"J":"Y"]=_,this.getRequestUrl_(a,p,l,1,o||n,d)}},e.prototype.getGutter=function(){return this.gutter_},e.prototype.getParams=function(){return this.params_},e.prototype.getRequestUrl_=function(t,e,i,r,n,o){var s=this.urls;if(s){if(o.WIDTH=e[0],o.HEIGHT=e[1],o[this.v13_?"CRS":"SRS"]=n.getCode(),"STYLES"in this.params_||(o.STYLES=""),1!=r)switch(this.serverType_){case Ep:var a=90*r+.5|0;"FORMAT_OPTIONS"in o?o.FORMAT_OPTIONS+=";dpi:"+a:o.FORMAT_OPTIONS="dpi:"+a;break;case Sp:o.MAP_RESOLUTION=90*r;break;case xp:case Tp:o.DPI=90*r;break;default:Y(!1,52)}var h,l,u=n.getAxisOrientation(),p=i;if(this.v13_&&"ne"==u.substr(0,2))h=i[0],p[0]=i[1],p[1]=h,h=i[2],p[2]=i[3],p[3]=h;if(o.BBOX=p.join(","),1==s.length)l=s[0];else l=s[Xt(Tl(t),s.length)];return fp(l,o)}},e.prototype.getTilePixelRatio=function(t){return this.hidpi_&&void 0!==this.serverType_?t:1},e.prototype.getKeyForParams_=function(){var t=0,e=[];for(var i in this.params_)e[t++]=i+"-"+this.params_[i];return e.join("/")},e.prototype.updateParams=function(t){u(this.params_,t),this.updateV13_(),this.setKey(this.getKeyForParams_())},e.prototype.updateV13_=function(){var t=this.params_.VERSION||mp;this.v13_=Ki(t,"1.3")>=0},e}(Qu),tc=function(t){function e(e,i,r,n,o,s){t.call(this,e,i),this.src_=r,this.extent_=n,this.preemptive_=o,this.grid_=null,this.keys_=null,this.data_=null,this.jsonp_=s}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getImage=function(){return null},e.prototype.getData=function(t){if(!this.grid_||!this.keys_)return null;var e=(t[0]-this.extent_[0])/(this.extent_[2]-this.extent_[0]),i=(t[1]-this.extent_[1])/(this.extent_[3]-this.extent_[1]),r=this.grid_[Math.floor((1-i)*this.grid_.length)];if("string"!=typeof r)return null;var n=r.charCodeAt(Math.floor(e*r.length));n>=93&&n--,n>=35&&n--;var o=null;if((n-=32)in this.keys_){var s=this.keys_[n];o=this.data_&&s in this.data_?this.data_[s]:s}return o},e.prototype.forDataAtCoordinate=function(t,e,i,r){this.state==On.IDLE&&!0===r?(m(this,M.CHANGE,function(r){e.call(i,this.getData(t))},this),this.loadInternal_()):!0===r?setTimeout(function(){e.call(i,this.getData(t))}.bind(this),0):e.call(i,this.getData(t))},e.prototype.getKey=function(){return this.src_},e.prototype.handleError_=function(){this.state=On.ERROR,this.changed()},e.prototype.handleLoad_=function(t){this.grid_=t.grid,this.keys_=t.keys,this.data_=t.data,this.state=On.EMPTY,this.changed()},e.prototype.loadInternal_=function(){if(this.state==On.IDLE)if(this.state=On.LOADING,this.jsonp_)Uu(this.src_,this.handleLoad_.bind(this),this.handleError_.bind(this));else{var t=new XMLHttpRequest;t.addEventListener("load",this.onXHRLoad_.bind(this)),t.addEventListener("error",this.onXHRError_.bind(this)),t.open("GET",this.src_),t.send()}},e.prototype.onXHRLoad_=function(t){var e=t.target;if(!e.status||e.status>=200&&e.status<300){var i;try{i=JSON.parse(e.responseText)}catch(t){return void this.handleError_()}this.handleLoad_(i)}else this.handleError_()},e.prototype.onXHRError_=function(t){this.handleError_()},e.prototype.load=function(){this.preemptive_&&this.loadInternal_()},e}(yl),ec=function(t){function e(e){if(t.call(this,{projection:Ee("EPSG:3857"),state:ro.LOADING}),this.preemptive_=void 0===e.preemptive||e.preemptive,this.tileUrlFunction_=ku,this.template_=void 0,this.jsonp_=e.jsonp||!1,e.url)if(this.jsonp_)Uu(e.url,this.handleTileJSONResponse.bind(this),this.handleTileJSONError.bind(this));else{var i=new XMLHttpRequest;i.addEventListener("load",this.onXHRLoad_.bind(this)),i.addEventListener("error",this.onXHRError_.bind(this)),i.open("GET",e.url),i.send()}else e.tileJSON?this.handleTileJSONResponse(e.tileJSON):Y(!1,51)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.onXHRLoad_=function(t){var e=t.target;if(!e.status||e.status>=200&&e.status<300){var i;try{i=JSON.parse(e.responseText)}catch(t){return void this.handleTileJSONError()}this.handleTileJSONResponse(i)}else this.handleTileJSONError()},e.prototype.onXHRError_=function(t){this.handleTileJSONError()},e.prototype.getTemplate=function(){return this.template_},e.prototype.forDataAtCoordinateAndResolution=function(t,e,i,r){if(this.tileGrid){var n=this.tileGrid.getTileCoordForCoordAndResolution(t,e);this.getTile(n[0],n[1],n[2],1,this.getProjection()).forDataAtCoordinate(t,i,null,r)}else!0===r?setTimeout(function(){i(null)},0):i(null)},e.prototype.handleTileJSONError=function(){this.setState(ro.ERROR)},e.prototype.handleTileJSONResponse=function(t){var e,i=Ee("EPSG:4326"),r=this.getProjection();if(void 0!==t.bounds){var n=Le(i,r);e=Ft(t.bounds,n)}var o=t.minzoom||0,s=t.maxzoom||22,a=Ml({extent:Nl(r),maxZoom:s,minZoom:o});this.tileGrid=a,this.template_=t.template;var h=t.grids;if(h){if(this.tileUrlFunction_=Gu(h,a),void 0!==t.attribution){var l=void 0!==e?e:i.getExtent();this.setAttributions(function(e){return Pt(l,e.extent)?[t.attribution]:null})}this.setState(ro.READY)}else this.setState(ro.ERROR)},e.prototype.getTile=function(t,e,i,r,n){var o=El(t,e,i);if(this.tileCache.containsKey(o))return this.tileCache.get(o);var s=[t,e,i],a=this.getTileCoordForTileUrlFunction(s,n),h=this.tileUrlFunction_(a,r,n),l=new tc(s,void 0!==h?On.IDLE:On.EMPTY,void 0!==h?h:"",this.tileGrid.getTileCoordExtent(s),this.preemptive_,this.jsonp_);return this.tileCache.set(o,l),l},e.prototype.useTile=function(t,e,i){var r=El(t,e,i);this.tileCache.containsKey(r)&&this.tileCache.get(r)},e}(kl),ic=function(t){function e(i,r,n,o,s,a,h,l,u,p,c,d,f,_,g){if(t.call(this,i,r,{transition:0}),this.context_={},this.loader_,this.replayState_={},this.sourceTiles_=p,this.tileKeys=[],this.extent=null,this.sourceRevision_=n,this.wrappedTileCoord=a,this.loadListenerKeys_=[],this.sourceTileListenerKeys_=[],a){var y=this.extent=u.getTileCoordExtent(a),m=u.getResolution(g),x=l.getZForResolution(m),E=g!=i[0],S=0;if(l.forEachTileCoord(y,x,function(t){var e=wt(y,l.getTileCoordExtent(t)),i=l.getExtent();if(i&&(e=wt(e,i,e)),Ot(e)/m>=.5&&Rt(e)/m>=.5){++S;var r=t.toString(),n=p[r];if(!n&&!E){var a=h(t,c,d);n=p[r]=new f(t,void 0==a?On.EMPTY:On.IDLE,void 0==a?"":a,o,s),this.sourceTileListenerKeys_.push(v(n,M.CHANGE,_))}!n||E&&n.getState()!=On.LOADED||(n.consumers++,this.tileKeys.push(r))}}.bind(this)),E&&S==this.tileKeys.length&&this.finishLoading_(),g<=i[0]&&this.state!=On.LOADED)for(;g>u.getMinZoom();){var T=new e(i,r,n,o,s,a,h,l,u,p,c,d,f,I,--g);if(T.state==On.LOADED){this.interimTile=T;break}}}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.state=On.ABORT,this.changed(),this.interimTile&&this.interimTile.dispose();for(var e=0,i=this.tileKeys.length;e=0;--i){var r=this.getTile(this.tileKeys[i]).getState();r!=On.LOADED&&--t,r==On.EMPTY&&++e}t==this.tileKeys.length?(this.loadListenerKeys_.forEach(E),this.loadListenerKeys_.length=0,this.setState(On.LOADED)):this.setState(e==this.tileKeys.length?On.EMPTY:On.ERROR)},e}(yl);function rc(t,e){var i=Hl(e,t.getFormat(),t.onLoad.bind(t),t.onError.bind(t));t.setLoader(i)}var nc=[0,0,4096,4096],oc=function(t){function e(e,i,r,n,o,s){t.call(this,e,i,s),this.consumers=0,this.extent_=null,this.format_=n,this.features_=null,this.loader_,this.projection_=null,this.replayGroups_={},this.tileLoadFunction_=o,this.url_=r}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.disposeInternal=function(){this.features_=null,this.replayGroups_={},this.state=On.ABORT,this.changed(),t.prototype.disposeInternal.call(this)},e.prototype.getExtent=function(){return this.extent_||nc},e.prototype.getFormat=function(){return this.format_},e.prototype.getFeatures=function(){return this.features_},e.prototype.getKey=function(){return this.url_},e.prototype.getProjection=function(){return this.projection_},e.prototype.getReplayGroup=function(t,e){return this.replayGroups_[o(t)+","+e]},e.prototype.load=function(){this.state==On.IDLE&&(this.setState(On.LOADING),this.tileLoadFunction_(this,this.url_),this.loader_(null,NaN,null))},e.prototype.onLoad=function(t,e,i){this.setProjection(e),this.setFeatures(t),this.setExtent(i)},e.prototype.onError=function(){this.setState(On.ERROR)},e.prototype.setExtent=function(t){this.extent_=t},e.prototype.setFeatures=function(t){this.features_=t,this.setState(On.LOADED)},e.prototype.setProjection=function(t){this.projection_=t},e.prototype.setReplayGroup=function(t,e,i){this.replayGroups_[o(t)+","+e]=i},e.prototype.setLoader=function(t){this.loader_=t},e}(yl),sc=function(t){function e(e){var i=e.projection||"EPSG:3857",r=e.extent||Nl(i),n=e.tileGrid||Ml({extent:r,maxZoom:e.maxZoom||22,minZoom:e.minZoom,tileSize:e.tileSize||512});t.call(this,{attributions:e.attributions,cacheSize:void 0!==e.cacheSize?e.cacheSize:128,opaque:!1,projection:i,state:e.state,tileGrid:n,tileLoadFunction:e.tileLoadFunction?e.tileLoadFunction:rc,tileUrlFunction:e.tileUrlFunction,url:e.url,urls:e.urls,wrapX:void 0===e.wrapX||e.wrapX,transition:e.transition}),this.format_=e.format?e.format:null,this.sourceTiles_={},this.overlaps_=void 0==e.overlaps||e.overlaps,this.tileClass=e.tileClass?e.tileClass:oc,this.tileGrids_={}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getOverlaps=function(){return this.overlaps_},e.prototype.clear=function(){this.tileCache.clear(),this.sourceTiles_={}},e.prototype.getTile=function(t,e,i,r,n){var o=El(t,e,i);if(this.tileCache.containsKey(o))return this.tileCache.get(o);var s=[t,e,i],a=this.getTileCoordForTileUrlFunction(s,n),h=new ic(s,null!==a?On.IDLE:On.EMPTY,this.getRevision(),this.format_,this.tileLoadFunction,a,this.tileUrlFunction,this.tileGrid,this.getTileGridForProjection(n),this.sourceTiles_,r,n,this.tileClass,this.handleTileChange.bind(this),s[0]);return this.tileCache.set(o,h),h},e.prototype.getTileGridForProjection=function(t){var e=t.getCode(),i=this.tileGrids_[e];if(!i){var r=this.tileGrid;i=this.tileGrids_[e]=Al(t,void 0,r?r.getTileSize(r.getMinZoom()):void 0)}return i},e.prototype.getTilePixelRatio=function(t){return t},e.prototype.getTilePixelSize=function(t,e,i){var r=ho(this.getTileGridForProjection(i).getTileSize(t),this.tmpSize);return[Math.round(r[0]*e),Math.round(r[1]*e)]},e}(qu),ac={KVP:"KVP",REST:"REST"},hc=function(t){function e(e){var i=void 0!==e.requestEncoding?e.requestEncoding:ac.KVP,r=e.tileGrid,n=e.urls;void 0===n&&void 0!==e.url&&(n=ju(e.url)),t.call(this,{attributions:e.attributions,cacheSize:e.cacheSize,crossOrigin:e.crossOrigin,projection:e.projection,reprojectionErrorThreshold:e.reprojectionErrorThreshold,tileClass:e.tileClass,tileGrid:r,tileLoadFunction:e.tileLoadFunction,tilePixelRatio:e.tilePixelRatio,tileUrlFunction:ku,urls:n,wrapX:void 0!==e.wrapX&&e.wrapX,transition:e.transition}),this.version_=void 0!==e.version?e.version:"1.0.0",this.format_=void 0!==e.format?e.format:"image/jpeg",this.dimensions_=void 0!==e.dimensions?e.dimensions:{},this.layer_=e.layer,this.matrixSet_=e.matrixSet,this.style_=e.style,this.requestEncoding_=i,this.setKey(this.getKeyForDimensions_()),n&&n.length>0&&(this.tileUrlFunction=Du(n.map(lc.bind(this))))}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.setUrls=function(t){this.urls=t;var e=t.join("\n");this.setTileUrlFunction(Du(t.map(lc.bind(this))),e)},e.prototype.getDimensions=function(){return this.dimensions_},e.prototype.getFormat=function(){return this.format_},e.prototype.getLayer=function(){return this.layer_},e.prototype.getMatrixSet=function(){return this.matrixSet_},e.prototype.getRequestEncoding=function(){return this.requestEncoding_},e.prototype.getStyle=function(){return this.style_},e.prototype.getVersion=function(){return this.version_},e.prototype.getKeyForDimensions_=function(){var t=0,e=[];for(var i in this.dimensions_)e[t++]=i+"-"+this.dimensions_[i];return e.join("/")},e.prototype.updateDimensions=function(t){u(this.dimensions_,t),this.setKey(this.getKeyForDimensions_())},e}(Qu);function lc(t){var e=this.requestEncoding_,i={layer:this.layer_,style:this.style_,tilematrixset:this.matrixSet_};e==ac.KVP&&u(i,{Service:"WMTS",Request:"GetTile",Version:this.version_,Format:this.format_}),t=e==ac.KVP?fp(t,i):t.replace(/\{(\w+?)\}/g,function(t,e){return e.toLowerCase()in i?i[e.toLowerCase()]:t});var r=this.tileGrid,n=this.dimensions_;return function(i,o,s){if(i){var a={TileMatrix:r.getMatrixId(i[0]),TileCol:i[1],TileRow:-i[2]-1};u(a,n);var h=t;return h=e==ac.KVP?fp(h,a):h.replace(/\{(\w+?)\}/g,function(t,e){return a[e]})}}}var uc={DEFAULT:"default",TRUNCATED:"truncated"},pc=function(t){function e(e,i,r,n,o,s,a){t.call(this,i,r,n,o,s,a),this.zoomifyImage_=null,this.tileSize_=ho(e.getTileSize(i[0]))}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.getImage=function(){if(this.zoomifyImage_)return this.zoomifyImage_;var e=t.prototype.getImage.call(this);if(this.state==On.LOADED){var i=this.tileSize_;if(e.width==i[0]&&e.height==i[1])return this.zoomifyImage_=e,e;var r=Jn(i[0],i[1]);return r.drawImage(e,0,0),this.zoomifyImage_=r.canvas,r.canvas}return e},e}(ml),cc=function(t){function e(e){var i=e||{},r=i.size,n=void 0!==i.tierSizeCalculation?i.tierSizeCalculation:uc.DEFAULT,o=r[0],s=r[1],a=i.extent||[0,-r[1],r[0],0],h=[],l=i.tileSize||An,u=l;switch(n){case uc.DEFAULT:for(;o>u||s>u;)h.push([Math.ceil(o/u),Math.ceil(s/u)]),u+=u;break;case uc.TRUNCATED:for(var p=o,c=s;p>u||c>u;)h.push([Math.ceil(p/u),Math.ceil(c/u)]),p>>=1,c>>=1;break;default:Y(!1,53)}h.push([1,1]),h.reverse();for(var d=[1],f=[0],_=1,g=h.length;_0)break}this.source_&&(this.source_.clear(),this.source_.addFeatures(s)),this.dispatchEvent(new Sc(Ec,t,s,n))},e.prototype.registerListeners_=function(){var t=this.getMap();if(t){var e=this.target?this.target:t.getViewport();this.dropListenKeys_=[v(e,M.DROP,Tc,this),v(e,M.DRAGENTER,Cc,this),v(e,M.DRAGOVER,Cc,this),v(e,M.DROP,Cc,this)]}},e.prototype.setActive=function(e){t.prototype.setActive.call(this,e),e?this.registerListeners_():this.unregisterListeners_()},e.prototype.setMap=function(e){this.unregisterListeners_(),t.prototype.setMap.call(this,e),this.getActive()&&this.registerListeners_()},e.prototype.tryReadFeatures_=function(t,e,i){try{return t.readFeatures(e,i)}catch(t){return null}},e.prototype.unregisterListeners_=function(){this.dropListenKeys_&&(this.dropListenKeys_.forEach(E),this.dropListenKeys_=null)},e}(Fo),wc=function(t){function e(e){var i=e||{};t.call(this,i),this.condition_=i.condition?i.condition:zo,this.lastAngle_=void 0,this.lastMagnitude_=void 0,this.lastScaleDelta_=0,this.duration_=void 0!==i.duration?i.duration:400}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.handleDragEvent=function(t){if(Ko(t)){var e=t.map,i=e.getSize(),r=t.pixel,n=r[0]-i[0]/2,o=i[1]/2-r[1],s=Math.atan2(o,n),a=Math.sqrt(n*n+o*o),h=e.getView();if(h.getConstraints().rotation!==Gn&&void 0!==this.lastAngle_){var l=s-this.lastAngle_;Oo(h,h.getRotation()-l)}if(this.lastAngle_=s,void 0!==this.lastMagnitude_)Mo(h,this.lastMagnitude_*(h.getResolution()/a));void 0!==this.lastMagnitude_&&(this.lastScaleDelta_=this.lastMagnitude_/a),this.lastMagnitude_=a}},e.prototype.handleUpEvent=function(t){if(!Ko(t))return!0;var e=t.map.getView();e.setHint(jn,-1);var i=this.lastScaleDelta_-1;return Lo(e,e.getRotation()),Po(e,e.getResolution(),void 0,this.duration_,i),this.lastScaleDelta_=0,!1},e.prototype.handleDownEvent=function(t){return!!Ko(t)&&(!!this.condition_(t)&&(t.map.getView().setHint(jn,1),this.lastAngle_=void 0,this.lastMagnitude_=void 0,!0))},e}(qo),Ic=function(t){function e(e,i,r){if(t.call(this),void 0!==r&&void 0===i)this.setFlatCoordinates(r,e);else{var n=i||0;this.setCenterAndRadius(e,n,r)}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.clone=function(){return new e(this.flatCoordinates.slice(),void 0,this.layout)},e.prototype.closestPointXY=function(t,e,i,r){var n=this.flatCoordinates,o=t-n[0],s=e-n[1],a=o*o+s*s;if(a=e[0]||(t[1]<=e[1]&&t[3]>=e[1]||mt(t,this.intersectsCoordinate,this))}return!1},e.prototype.setCenter=function(t){var e=this.stride,i=this.flatCoordinates[e]-this.flatCoordinates[0],r=t.slice();r[e]=r[0]+i;for(var n=1;n=this.dragVertexDelay_?(this.downPx_=e.pixel,this.shouldHandle_=!this.freehand_,i=!0):this.lastDragTime_=void 0,this.shouldHandle_&&void 0!==this.downTimeout_&&(clearTimeout(this.downTimeout_),this.downTimeout_=void 0));return this.freehand_&&e.type===Ar.POINTERDRAG&&null!==this.sketchFeature_?(this.addToDrawing_(e),r=!1):this.freehand_&&e.type===Ar.POINTERDOWN?r=!1:i?(r=e.type===Ar.POINTERMOVE)&&this.freehand_?r=this.handlePointerMove_(e):(e.pointerEvent.pointerType==Ur||e.type===Ar.POINTERDRAG&&void 0===this.downTimeout_)&&this.handlePointerMove_(e):e.type===Ar.DBLCLICK&&(r=!1),t.prototype.handleEvent.call(this,e)&&r},e.prototype.handleDownEvent=function(t){return this.shouldHandle_=!this.freehand_,this.freehand_?(this.downPx_=t.pixel,this.finishCoordinate_||this.startDrawing_(t),!0):!!this.condition_(t)&&(this.lastDragTime_=Date.now(),this.downTimeout_=setTimeout(function(){this.handlePointerMove_(new Nr(Ar.POINTERMOVE,t.map,t.pointerEvent,!1,t.frameState))}.bind(this),this.dragVertexDelay_),this.downPx_=t.pixel,!0)},e.prototype.handleUpEvent=function(t){var e=!0;this.downTimeout_&&(clearTimeout(this.downTimeout_),this.downTimeout_=void 0),this.handlePointerMove_(t);var i=this.mode_===Fc.CIRCLE;return this.shouldHandle_?(this.finishCoordinate_?this.freehand_||i?this.finishDrawing():this.atFinish_(t)?this.finishCondition_(t)&&this.finishDrawing():this.addToDrawing_(t):(this.startDrawing_(t),this.mode_===Fc.POINT&&this.finishDrawing()),e=!1):this.freehand_&&(this.finishCoordinate_=null,this.abortDrawing_()),!e&&this.stopClick_&&t.stopPropagation(),e},e.prototype.handlePointerMove_=function(t){if(this.downPx_&&(!this.freehand_&&this.shouldHandle_||this.freehand_&&!this.shouldHandle_)){var e=this.downPx_,i=t.pixel,r=e[0]-i[0],n=e[1]-i[1],o=r*r+n*n;if(this.shouldHandle_=this.freehand_?o>this.squaredClickTolerance_:o<=this.squaredClickTolerance_,!this.shouldHandle_)return!0}return this.finishCoordinate_?this.modifyDrawing_(t):this.createOrUpdateSketchPoint_(t),!0},e.prototype.atFinish_=function(t){var e=!1;if(this.sketchFeature_){var i=!1,r=[this.finishCoordinate_];if(this.mode_===Fc.LINE_STRING)i=this.sketchCoords_.length>this.minPoints_;else if(this.mode_===Fc.POLYGON){var n=this.sketchCoords_;i=n[0].length>this.minPoints_,r=[n[0][0],n[0][n[0].length-2]]}if(i)for(var o=t.map,s=0,a=r.length;s=this.maxPoints_&&(this.freehand_?i.pop():e=!0),i.push(r.slice()),this.geometryFunction_(i,n)):this.mode_===Fc.POLYGON&&((i=this.sketchCoords_[0]).length>=this.maxPoints_&&(this.freehand_?i.pop():e=!0),i.push(r.slice()),e&&(this.finishCoordinate_=i[0]),this.geometryFunction_(this.sketchCoords_,n)),this.updateSketchFeatures_(),e&&this.finishDrawing()},e.prototype.removeLastPoint=function(){if(this.sketchFeature_){var t,e=this.sketchFeature_.getGeometry();this.mode_===Fc.LINE_STRING?((t=this.sketchCoords_).splice(-2,1),this.geometryFunction_(t,e),t.length>=2&&(this.finishCoordinate_=t[t.length-2].slice())):this.mode_===Fc.POLYGON&&((t=this.sketchCoords_[0]).splice(-2,1),this.sketchLine_.getGeometry().setCoordinates(t),this.geometryFunction_(this.sketchCoords_,e)),0===t.length&&(this.finishCoordinate_=null),this.updateSketchFeatures_()}},e.prototype.finishDrawing=function(){var t=this.abortDrawing_();if(t){var e=this.sketchCoords_,i=t.getGeometry();this.mode_===Fc.LINE_STRING?(e.pop(),this.geometryFunction_(e,i)):this.mode_===Fc.POLYGON&&(e[0].pop(),this.geometryFunction_(e,i),e=i.getCoordinates()),this.type_===Nt.MULTI_POINT?t.setGeometry(new Pc([e])):this.type_===Nt.MULTI_LINE_STRING?t.setGeometry(new Oc([e])):this.type_===Nt.MULTI_POLYGON&&t.setGeometry(new Mc([e])),this.dispatchEvent(new Gc(Nc,t)),this.features_&&this.features_.push(t),this.source_&&this.source_.addFeature(t)}},e.prototype.abortDrawing_=function(){this.finishCoordinate_=null;var t=this.sketchFeature_;return t&&(this.sketchFeature_=null,this.sketchPoint_=null,this.sketchLine_=null,this.overlay_.getSource().clear(!0)),t},e.prototype.extend=function(t){var e=t.getGeometry();this.sketchFeature_=t,this.sketchCoords_=e.getCoordinates();var i=this.sketchCoords_[this.sketchCoords_.length-1];this.finishCoordinate_=i.slice(),this.sketchCoords_.push(i.slice()),this.updateSketchFeatures_(),this.dispatchEvent(new Gc(Ac,this.sketchFeature_))},e.prototype.updateSketchFeatures_=function(){var t=[];this.sketchFeature_&&t.push(this.sketchFeature_),this.sketchLine_&&t.push(this.sketchLine_),this.sketchPoint_&&t.push(this.sketchPoint_);var e=this.overlay_.getSource();e.clear(!0),e.addFeatures(t)},e.prototype.updateState_=function(){var t=this.getMap(),e=this.getActive();t&&e||this.abortDrawing_(),this.overlay_.setMap(e?t:null)},e}(qo),kc={EXTENTCHANGED:"extentchanged"},jc=function(t){function e(e){t.call(this,kc.EXTENTCHANGED),this.extent=e}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P);function Uc(t){return function(e){return tt([t,e])}}function Yc(t,e){return t[0]==e[0]?function(i){return tt([t,[i[0],e[1]]])}:t[1]==e[1]?function(i){return tt([t,[e[0],i[1]]])}:null}var Bc=function(t){function e(e){var i=e||{};t.call(this,i),this.extent_=null,this.pointerHandler_=null,this.pixelTolerance_=void 0!==i.pixelTolerance?i.pixelTolerance:10,this.snappedToVertex_=!1,this.extentFeature_=null,this.vertexFeature_=null,e||(e={}),this.extentOverlay_=new _c({source:new np({useSpatialIndex:!1,wrapX:!!e.wrapX}),style:e.boxStyle?e.boxStyle:function(){var t=Mu();return function(e,i){return t[Nt.POLYGON]}}(),updateWhileAnimating:!0,updateWhileInteracting:!0}),this.vertexOverlay_=new _c({source:new np({useSpatialIndex:!1,wrapX:!!e.wrapX}),style:e.pointerStyle?e.pointerStyle:function(){var t=Mu();return function(e,i){return t[Nt.POINT]}}(),updateWhileAnimating:!0,updateWhileInteracting:!0}),e.extent&&this.setExtent(e.extent)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.snapToVertex_=function(t,e){var i=e.getCoordinateFromPixel(t),r=this.getExtent();if(r){var n=function(t){return[[[t[0],t[1]],[t[0],t[3]]],[[t[0],t[3]],[t[2],t[3]]],[[t[2],t[3]],[t[2],t[1]]],[[t[2],t[1]],[t[0],t[1]]]]}(r);n.sort(function(t,e){return rr(i,t)-rr(i,e)});var o=n[0],s=Zi(i,o),a=e.getPixelFromCoordinate(s);if(ir(t,a)<=this.pixelTolerance_){var h=e.getPixelFromCoordinate(o[0]),l=e.getPixelFromCoordinate(o[1]),u=er(a,h),p=er(a,l),c=Math.sqrt(Math.min(u,p));return this.snappedToVertex_=c<=this.pixelTolerance_,this.snappedToVertex_&&(s=u>p?o[1]:o[0]),s}}return null},e.prototype.handlePointerMove_=function(t){var e=t.pixel,i=t.map,r=this.snapToVertex_(e,i);r||(r=i.getCoordinateFromPixel(e)),this.createOrUpdatePointerFeature_(r)},e.prototype.createOrUpdateExtentFeature_=function(t){var e=this.extentFeature_;return e?t?e.setGeometry(Oi(t)):e.setGeometry(void 0):(e=new B(t?Oi(t):{}),this.extentFeature_=e,this.extentOverlay_.getSource().addFeature(e)),e},e.prototype.createOrUpdatePointerFeature_=function(t){var e=this.vertexFeature_;e?e.getGeometry().setCoordinates(t):(e=new B(new ci(t)),this.vertexFeature_=e,this.vertexOverlay_.getSource().addFeature(e));return e},e.prototype.handleEvent=function(e){return!e.pointerEvent||(e.type!=Ar.POINTERMOVE||this.handlingDownUpSequence||this.handlePointerMove_(e),t.prototype.handleEvent.call(this,e),!1)},e.prototype.handleDownEvent=function(t){var e=t.pixel,i=t.map,r=this.getExtent(),n=this.snapToVertex_(e,i),o=function(t){var e=null,i=null;return t[0]==r[0]?e=r[2]:t[0]==r[2]&&(e=r[0]),t[1]==r[1]?i=r[3]:t[1]==r[3]&&(i=r[1]),null!==e&&null!==i?[e,i]:null};if(n&&r){var s=n[0]==r[0]||n[0]==r[2]?n[0]:null,a=n[1]==r[1]||n[1]==r[3]?n[1]:null;null!==s&&null!==a?this.pointerHandler_=Uc(o(n)):null!==s?this.pointerHandler_=Yc(o([s,r[1]]),o([s,r[3]])):null!==a&&(this.pointerHandler_=Yc(o([r[0],a]),o([r[2],a])))}else n=i.getCoordinateFromPixel(e),this.setExtent([n[0],n[1],n[0],n[1]]),this.pointerHandler_=Uc(n);return!0},e.prototype.handleDragEvent=function(t){if(this.pointerHandler_){var e=t.coordinate;this.setExtent(this.pointerHandler_(e)),this.createOrUpdatePointerFeature_(e)}return!0},e.prototype.handleUpEvent=function(t){this.pointerHandler_=null;var e=this.getExtent();return e&&0!==xt(e)||this.setExtent(null),!1},e.prototype.setMap=function(e){this.extentOverlay_.setMap(e),this.vertexOverlay_.setMap(e),t.prototype.setMap.call(this,e)},e.prototype.getExtent=function(){return this.extent_},e.prototype.setExtent=function(t){this.extent_=t||null,this.createOrUpdateExtentFeature_(t),this.dispatchEvent(new jc(this.extent_))},e}(qo),Vc=1,Xc="modifystart",zc="modifyend",Wc=function(t){function e(e,i,r){t.call(this,e),this.features=i,this.mapBrowserEvent=r}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P);function Kc(t,e){return t.index-e.index}function Hc(t,e){var i=e.geometry;if(i.getType()===Nt.CIRCLE){var r=i;if(e.index===Vc){var n=er(r.getCenter(),t),o=Math.sqrt(n)-r.getRadius();return o*o}}return rr(t,e.segment)}function Zc(t,e){var i=e.geometry;return i.getType()===Nt.CIRCLE&&e.index===Vc?i.getClosestPoint(t):Zi(t,e.segment)}var qc=function(t){function e(e){var i;if(t.call(this,e),this.condition_=e.condition?e.condition:Ho,this.defaultDeleteCondition_=function(t){return Go(t)&&Vo(t)},this.deleteCondition_=e.deleteCondition?e.deleteCondition:this.defaultDeleteCondition_,this.insertVertexCondition_=e.insertVertexCondition?e.insertVertexCondition:jo,this.vertexFeature_=null,this.vertexSegments_=null,this.lastPixel_=[0,0],this.ignoreNextSingleClick_=!1,this.modified_=!1,this.rBush_=new tl,this.pixelTolerance_=void 0!==e.pixelTolerance?e.pixelTolerance:10,this.snappedToVertex_=!1,this.changingFeature_=!1,this.dragSegments_=[],this.overlay_=new _c({source:new np({useSpatialIndex:!1,wrapX:!!e.wrapX}),style:e.style?e.style:function(){var t=Mu();return function(e,i){return t[Nt.POINT]}}(),updateWhileAnimating:!0,updateWhileInteracting:!0}),this.SEGMENT_WRITERS_={Point:this.writePointGeometry_,LineString:this.writeLineStringGeometry_,LinearRing:this.writeLineStringGeometry_,Polygon:this.writePolygonGeometry_,MultiPoint:this.writeMultiPointGeometry_,MultiLineString:this.writeMultiLineStringGeometry_,MultiPolygon:this.writeMultiPolygonGeometry_,Circle:this.writeCircleGeometry_,GeometryCollection:this.writeGeometryCollectionGeometry_},this.source_=null,e.source?(this.source_=e.source,i=new U(this.source_.getFeatures()),v(this.source_,ip.ADDFEATURE,this.handleSourceAdd_,this),v(this.source_,ip.REMOVEFEATURE,this.handleSourceRemove_,this)):i=e.features,!i)throw new Error("The modify interaction requires features or a source");this.features_=i,this.features_.forEach(this.addFeature_.bind(this)),v(this.features_,h.ADD,this.handleFeatureAdd_,this),v(this.features_,h.REMOVE,this.handleFeatureRemove_,this),this.lastPointerEvent_=null}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.addFeature_=function(t){var e=t.getGeometry();e&&e.getType()in this.SEGMENT_WRITERS_&&this.SEGMENT_WRITERS_[e.getType()].call(this,t,e);var i=this.getMap();i&&i.isRendered()&&this.getActive()&&this.handlePointerAtPixel_(this.lastPixel_,i),v(t,M.CHANGE,this.handleFeatureChange_,this)},e.prototype.willModifyFeatures_=function(t){this.modified_||(this.modified_=!0,this.dispatchEvent(new Wc(Xc,this.features_,t)))},e.prototype.removeFeature_=function(t){this.removeFeatureSegmentData_(t),this.vertexFeature_&&0===this.features_.getLength()&&(this.overlay_.getSource().removeFeature(this.vertexFeature_),this.vertexFeature_=null),x(t,M.CHANGE,this.handleFeatureChange_,this)},e.prototype.removeFeatureSegmentData_=function(t){var e=this.rBush_,i=[];e.forEach(function(e){t===e.feature&&i.push(e)});for(var r=i.length-1;r>=0;--r)e.remove(i[r])},e.prototype.setActive=function(e){this.vertexFeature_&&!e&&(this.overlay_.getSource().removeFeature(this.vertexFeature_),this.vertexFeature_=null),t.prototype.setActive.call(this,e)},e.prototype.setMap=function(e){this.overlay_.setMap(e),t.prototype.setMap.call(this,e)},e.prototype.getOverlay=function(){return this.overlay_},e.prototype.handleSourceAdd_=function(t){t.feature&&this.features_.push(t.feature)},e.prototype.handleSourceRemove_=function(t){t.feature&&this.features_.remove(t.feature)},e.prototype.handleFeatureAdd_=function(t){this.addFeature_(t.element)},e.prototype.handleFeatureChange_=function(t){if(!this.changingFeature_){var e=t.target;this.removeFeature_(e),this.addFeature_(e)}},e.prototype.handleFeatureRemove_=function(t){var e=t.element;this.removeFeature_(e)},e.prototype.writePointGeometry_=function(t,e){var i=e.getCoordinates(),r={feature:t,geometry:e,segment:[i,i]};this.rBush_.insert(e.getExtent(),r)},e.prototype.writeMultiPointGeometry_=function(t,e){for(var i=e.getCoordinates(),r=0,n=i.length;r=0;--_)this.insertVertex_.apply(this,r[_])}return!!this.vertexFeature_},e.prototype.handleUpEvent=function(t){for(var e=this.dragSegments_.length-1;e>=0;--e){var i=this.dragSegments_[e][0],r=i.geometry;if(r.getType()===Nt.CIRCLE){var n=r.getCenter(),o=i.featureSegments[0],s=i.featureSegments[1];o.segment[0]=o.segment[1]=n,s.segment[0]=s.segment[1]=n,this.rBush_.update(pt(n),o),this.rBush_.update(r.getExtent(),s)}else this.rBush_.update(tt(i.segment),i)}return this.modified_&&(this.dispatchEvent(new Wc(zc,this.features_,t)),this.modified_=!1),!1},e.prototype.handlePointerMove_=function(t){this.lastPixel_=t.pixel,this.handlePointerAtPixel_(t.pixel,t.map)},e.prototype.handlePointerAtPixel_=function(t,e){var i=e.getCoordinateFromPixel(t),r=et(pt(i),e.getView().getResolution()*this.pixelTolerance_),n=this.rBush_.getInExtent(r);if(n.length>0){n.sort(function(t,e){return Hc(i,t)-Hc(i,e)});var s=n[0],a=s.segment,h=Zc(i,s),l=e.getPixelFromCoordinate(h),u=ir(t,l);if(u<=this.pixelTolerance_){var p={};if(s.geometry.getType()===Nt.CIRCLE&&s.index===Vc)this.snappedToVertex_=!0,this.createOrUpdateVertexFeature_(h);else{var c=e.getPixelFromCoordinate(a[0]),d=e.getPixelFromCoordinate(a[1]),f=er(l,c),_=er(l,d);u=Math.sqrt(Math.min(f,_)),this.snappedToVertex_=u<=this.pixelTolerance_,this.snappedToVertex_&&(h=f>_?a[1]:a[0]),this.createOrUpdateVertexFeature_(h);for(var g=1,y=n.length;g=0;--n)p=o((u=(i=c[n])[0]).feature),u.depth&&(p+="-"+u.depth.join("-")),p in d||(d[p]={}),0===i[1]?(d[p].right=u,d[p].index=u.index):1==i[1]&&(d[p].left=u,d[p].index=u.index+1);for(p in d){switch(l=d[p].right,a=d[p].left,h=(s=d[p].index)-1,u=void 0!==a?a:l,h<0&&(h=0),t=e=(r=u.geometry).getCoordinates(),f=!1,r.getType()){case Nt.MULTI_LINE_STRING:e[u.depth[0]].length>2&&(e[u.depth[0]].splice(s,1),f=!0);break;case Nt.LINE_STRING:e.length>2&&(e.splice(s,1),f=!0);break;case Nt.MULTI_POLYGON:t=t[u.depth[1]];case Nt.POLYGON:(t=t[u.depth[0]]).length>4&&(s==t.length-1&&(s=0),t.splice(s,1),f=!0,0===s&&(t.pop(),t.push(t[0]),h=t.length-1))}if(f){this.setGeometryCoordinates_(r,e);var _=[];if(void 0!==a&&(this.rBush_.remove(a),_.push(a.segment[0])),void 0!==l&&(this.rBush_.remove(l),_.push(l.segment[1])),void 0!==a&&void 0!==l){var g={depth:u.depth,feature:u.feature,geometry:u.geometry,index:h,segment:_};this.rBush_.insert(tt(g.segment),g)}this.updateSegmentIndices_(r,s,u.depth,-1),this.vertexFeature_&&(this.overlay_.getSource().removeFeature(this.vertexFeature_),this.vertexFeature_=null),c.length=0}}return f},e.prototype.setGeometryCoordinates_=function(t,e){this.changingFeature_=!0,t.setCoordinates(e),this.changingFeature_=!1},e.prototype.updateSegmentIndices_=function(t,e,i,r){this.rBush_.forEachInExtent(t.getExtent(),function(n){n.geometry===t&&(void 0===i||void 0===n.depth||Z(n.depth,i))&&n.index>e&&(n.index+=r)})},e}(qo),Jc={SELECT:"select"},Qc=function(t){function e(e,i,r,n){t.call(this,e),this.selected=i,this.deselected=r,this.mapBrowserEvent=n}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e}(P);function $c(t){if(!this.condition_(t))return!0;var e=this.addCondition_(t),i=this.removeCondition_(t),r=this.toggleCondition_(t),n=!e&&!i&&!r,o=t.map,s=this.getFeatures(),a=[],h=[];if(n){p(this.featureLayerAssociation_),o.forEachFeatureAtPixel(t.pixel,function(t,e){if(this.filter_(t,e))return h.push(t),this.addFeatureLayerAssociation_(t,e),!this.multi_}.bind(this),{layerFilter:this.layerFilter_,hitTolerance:this.hitTolerance_});for(var l=s.getLength()-1;l>=0;--l){var u=s.item(l),c=h.indexOf(u);c>-1?h.splice(c,1):(s.remove(u),a.push(u))}0!==h.length&&s.extend(h)}else{o.forEachFeatureAtPixel(t.pixel,function(t,n){if(this.filter_(t,n))return!e&&!r||X(s.getArray(),t)?(i||r)&&X(s.getArray(),t)&&(a.push(t),this.removeFeatureLayerAssociation_(t)):(h.push(t),this.addFeatureLayerAssociation_(t,n)),!this.multi_}.bind(this),{layerFilter:this.layerFilter_,hitTolerance:this.hitTolerance_});for(var d=a.length-1;d>=0;--d)s.remove(a[d]);s.extend(h)}return(h.length>0||a.length>0)&&this.dispatchEvent(new Qc(Jc.SELECT,h,a,t)),Bo(t)}var td=function(t){function e(e){t.call(this,{handleEvent:$c});var i=e||{};this.condition_=i.condition?i.condition:Vo,this.addCondition_=i.addCondition?i.addCondition:Yo,this.removeCondition_=i.removeCondition?i.removeCondition:Yo,this.toggleCondition_=i.toggleCondition?i.toggleCondition:zo,this.multi_=!!i.multi&&i.multi,this.filter_=i.filter?i.filter:R,this.hitTolerance_=i.hitTolerance?i.hitTolerance:0;var r,n=new _c({source:new np({useSpatialIndex:!1,features:i.features,wrapX:i.wrapX}),style:i.style?i.style:function(){var t=Mu();return K(t[Nt.POLYGON],t[Nt.LINE_STRING]),K(t[Nt.GEOMETRY_COLLECTION],t[Nt.LINE_STRING]),function(e,i){return e.getGeometry()?t[e.getGeometry().getType()]:null}}(),updateWhileAnimating:!0,updateWhileInteracting:!0});if(this.featureOverlay_=n,i.layers)if("function"==typeof i.layers)r=i.layers;else{var o=i.layers;r=function(t){return X(o,t)}}else r=R;this.layerFilter_=r,this.featureLayerAssociation_={};var s=this.getFeatures();v(s,h.ADD,this.addFeature_,this),v(s,h.REMOVE,this.removeFeature_,this)}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.addFeatureLayerAssociation_=function(t,e){this.featureLayerAssociation_[o(t)]=e},e.prototype.getFeatures=function(){return this.featureOverlay_.getSource().getFeaturesCollection()},e.prototype.getHitTolerance=function(){return this.hitTolerance_},e.prototype.getLayer=function(t){return this.featureLayerAssociation_[o(t)]},e.prototype.getOverlay=function(){return this.featureOverlay_},e.prototype.setHitTolerance=function(t){this.hitTolerance_=t},e.prototype.setMap=function(e){var i=this.getMap(),r=this.getFeatures();i&&r.forEach(i.unskipFeature.bind(i)),t.prototype.setMap.call(this,e),this.featureOverlay_.setMap(e),e&&r.forEach(e.skipFeature.bind(e))},e.prototype.addFeature_=function(t){var e=this.getMap();e&&e.skipFeature(t.element)},e.prototype.removeFeature_=function(t){var e=this.getMap();e&&e.unskipFeature(t.element)},e.prototype.removeFeatureLayerAssociation_=function(t){delete this.featureLayerAssociation_[o(t)]},e}(Fo);function ed(t){return t.feature?t.feature:t.element?t.element:void 0}var id=function(t){function e(e){var i=e||{},r=i;r.handleDownEvent||(r.handleDownEvent=R),r.stopDown||(r.stopDown=w),t.call(this,r),this.source_=i.source?i.source:null,this.vertex_=void 0===i.vertex||i.vertex,this.edge_=void 0===i.edge||i.edge,this.features_=i.features?i.features:null,this.featuresListenerKeys_=[],this.featureChangeListenerKeys_={},this.indexedFeaturesExtents_={},this.pendingFeatures_={},this.pixelCoordinate_=null,this.pixelTolerance_=void 0!==i.pixelTolerance?i.pixelTolerance:10,this.sortByDistance_=function(t,e){var i=rr(this.pixelCoordinate_,t.segment),r=rr(this.pixelCoordinate_,e.segment);return i-r}.bind(this),this.rBush_=new tl,this.SEGMENT_WRITERS_={Point:this.writePointGeometry_,LineString:this.writeLineStringGeometry_,LinearRing:this.writeLineStringGeometry_,Polygon:this.writePolygonGeometry_,MultiPoint:this.writeMultiPointGeometry_,MultiLineString:this.writeMultiLineStringGeometry_,MultiPolygon:this.writeMultiPolygonGeometry_,GeometryCollection:this.writeGeometryCollectionGeometry_,Circle:this.writeCircleGeometry_}}return t&&(e.__proto__=t),e.prototype=Object.create(t&&t.prototype),e.prototype.constructor=e,e.prototype.addFeature=function(t,e){var i=void 0===e||e,r=o(t),n=t.getGeometry();if(n){var s=this.SEGMENT_WRITERS_[n.getType()];s&&(this.indexedFeaturesExtents_[r]=n.getExtent([1/0,1/0,-1/0,-1/0]),s.call(this,t,n))}i&&(this.featureChangeListenerKeys_[r]=v(t,M.CHANGE,this.handleFeatureChange_,this))},e.prototype.forEachFeatureAdd_=function(t){this.addFeature(t)},e.prototype.forEachFeatureRemove_=function(t){this.removeFeature(t)},e.prototype.getFeatures_=function(){var t;return this.features_?t=this.features_:this.source_&&(t=this.source_.getFeatures()),t},e.prototype.handleEvent=function(e){var i=this.snapTo(e.pixel,e.coordinate,e.map);return i.snapped&&(e.coordinate=i.vertex.slice(0,2),e.pixel=i.vertexPixel),t.prototype.handleEvent.call(this,e)},e.prototype.handleFeatureAdd_=function(t){var e=ed(t);this.addFeature(e)},e.prototype.handleFeatureRemove_=function(t){var e=ed(t);this.removeFeature(e)},e.prototype.handleFeatureChange_=function(t){var e=t.target;if(this.handlingDownUpSequence){var i=o(e);i in this.pendingFeatures_||(this.pendingFeatures_[i]=e)}else this.updateFeature_(e)},e.prototype.handleUpEvent=function(t){var e=c(this.pendingFeatures_);return e.length&&(e.forEach(this.updateFeature_.bind(this)),this.pendingFeatures_={}),!1},e.prototype.removeFeature=function(t,e){var i=void 0===e||e,r=o(t),n=this.indexedFeaturesExtents_[r];if(n){var s=this.rBush_,a=[];s.forEachInExtent(n,function(e){t===e.feature&&a.push(e)});for(var h=a.length-1;h>=0;--h)s.remove(a[h])}i&&(E(this.featureChangeListenerKeys_[r]),delete this.featureChangeListenerKeys_[r])},e.prototype.setMap=function(e){var i=this.getMap(),r=this.featuresListenerKeys_,n=this.getFeatures_();i&&(r.forEach(E),r.length=0,n.forEach(this.forEachFeatureRemove_.bind(this))),t.prototype.setMap.call(this,e),e&&(this.features_?r.push(v(this.features_,h.ADD,this.handleFeatureAdd_,this),v(this.features_,h.REMOVE,this.handleFeatureRemove_,this)):this.source_&&r.push(v(this.source_,ip.ADDFEATURE,this.handleFeatureAdd_,this),v(this.source_,ip.REMOVEFEATURE,this.handleFeatureRemove_,this)),n.forEach(this.forEachFeatureAdd_.bind(this)))},e.prototype.snapTo=function(t,e,i){var r=tt([i.getCoordinateFromPixel([t[0]-this.pixelTolerance_,t[1]+this.pixelTolerance_]),i.getCoordinateFromPixel([t[0]+this.pixelTolerance_,t[1]-this.pixelTolerance_])]),n=this.rBush_.getInExtent(r);this.vertex_&&!this.edge_&&(n=n.filter(function(t){return t.feature.getGeometry().getType()!==Nt.CIRCLE}));var o,s,a,h,l=!1,u=null,p=null;if(n.length>0){this.pixelCoordinate_=e,n.sort(this.sortByDistance_);var c=n[0].segment,d=n[0].feature.getGeometry().getType()===Nt.CIRCLE;this.vertex_&&!this.edge_?(o=i.getPixelFromCoordinate(c[0]),s=i.getPixelFromCoordinate(c[1]),a=er(t,o),h=er(t,s),Math.sqrt(Math.min(a,h))<=this.pixelTolerance_&&(l=!0,u=a>h?c[1]:c[0],p=i.getPixelFromCoordinate(u))):this.edge_&&(u=d?function(t,e){var i=e.getRadius(),r=e.getCenter(),n=r[0],o=r[1],s=t[0]-n,a=t[1]-o;0===s&&0===a&&(s=1);var h=Math.sqrt(s*s+a*a);return[n+i*s/h,o+i*a/h]}(e,n[0].feature.getGeometry()):Zi(e,c),ir(t,p=i.getPixelFromCoordinate(u))<=this.pixelTolerance_&&(l=!0,this.vertex_&&!d&&(o=i.getPixelFromCoordinate(c[0]),s=i.getPixelFromCoordinate(c[1]),a=er(p,o),h=er(p,s),Math.sqrt(Math.min(a,h))<=this.pixelTolerance_&&(u=a>h?c[1]:c[0],p=i.getPixelFromCoordinate(u))))),l&&(p=[Math.round(p[0]),Math.round(p[1])])}return{snapped:l,vertex:u,vertexPixel:p}},e.prototype.updateFeature_=function(t){this.removeFeature(t,!1),this.addFeature(t,!1)},e.prototype.writeCircleGeometry_=function(t,e){for(var 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f,_,g=i.WGS84BoundingBox;if(void 0!==g){var y=Ee("EPSG:4326").getExtent();_=g[0]==y[0]&&g[2]==y[2],f=be(g,"EPSG:4326",u);var v=u.getExtent();v&&(ot(v,f)||(f=void 0))}var m=xu(p,f,s),x=[],E=e.requestEncoding;if(E=void 0!==E?E:"","OperationsMetadata"in t&&"GetTile"in t.OperationsMetadata)for(var S=t.OperationsMetadata.GetTile.DCP.HTTP.Get,T=0,C=S.length;T= 0) {\n if (insertPath[level].children.length > this._maxEntries) {\n this._split(insertPath, level);\n level--;\n } else break;\n }\n\n // adjust bboxes along the insertion path\n this._adjustParentBBoxes(bbox, insertPath, level);\n },\n\n // split overflowed node into two\n _split: function (insertPath, level) {\n\n var node = insertPath[level],\n M = node.children.length,\n m = this._minEntries;\n\n this._chooseSplitAxis(node, m, M);\n\n var splitIndex = this._chooseSplitIndex(node, m, M);\n\n var newNode = createNode(node.children.splice(splitIndex, node.children.length - splitIndex));\n newNode.height = node.height;\n newNode.leaf = node.leaf;\n\n calcBBox(node, this.toBBox);\n calcBBox(newNode, this.toBBox);\n\n if (level) insertPath[level - 1].children.push(newNode);\n else this._splitRoot(node, newNode);\n },\n\n _splitRoot: function (node, newNode) {\n // split root node\n this.data = createNode([node, newNode]);\n this.data.height = node.height + 1;\n this.data.leaf = false;\n calcBBox(this.data, this.toBBox);\n },\n\n _chooseSplitIndex: function (node, m, M) {\n\n var i, bbox1, bbox2, overlap, area, minOverlap, minArea, index;\n\n minOverlap = minArea = Infinity;\n\n for (i = m; i <= M - m; i++) {\n bbox1 = distBBox(node, 0, i, this.toBBox);\n bbox2 = distBBox(node, i, M, this.toBBox);\n\n overlap = intersectionArea(bbox1, bbox2);\n area = bboxArea(bbox1) + bboxArea(bbox2);\n\n // choose distribution with minimum overlap\n if (overlap < minOverlap) {\n minOverlap = overlap;\n index = i;\n\n minArea = area < minArea ? area : minArea;\n\n } else if (overlap === minOverlap) {\n // otherwise choose distribution with minimum area\n if (area < minArea) {\n minArea = area;\n index = i;\n }\n }\n }\n\n return index;\n },\n\n // sorts node children by the best axis for split\n _chooseSplitAxis: function (node, m, M) {\n\n var compareMinX = node.leaf ? this.compareMinX : compareNodeMinX,\n compareMinY = node.leaf ? this.compareMinY : compareNodeMinY,\n xMargin = this._allDistMargin(node, m, M, compareMinX),\n yMargin = this._allDistMargin(node, m, M, compareMinY);\n\n // if total distributions margin value is minimal for x, sort by minX,\n // otherwise it's already sorted by minY\n if (xMargin < yMargin) node.children.sort(compareMinX);\n },\n\n // total margin of all possible split distributions where each node is at least m full\n _allDistMargin: function (node, m, M, compare) {\n\n node.children.sort(compare);\n\n var toBBox = this.toBBox,\n leftBBox = distBBox(node, 0, m, toBBox),\n rightBBox = distBBox(node, M - m, M, toBBox),\n margin = bboxMargin(leftBBox) + bboxMargin(rightBBox),\n i, child;\n\n for (i = m; i < M - m; i++) {\n child = node.children[i];\n extend(leftBBox, node.leaf ? toBBox(child) : child);\n margin += bboxMargin(leftBBox);\n }\n\n for (i = M - m - 1; i >= m; i--) {\n child = node.children[i];\n extend(rightBBox, node.leaf ? toBBox(child) : child);\n margin += bboxMargin(rightBBox);\n }\n\n return margin;\n },\n\n _adjustParentBBoxes: function (bbox, path, level) {\n // adjust bboxes along the given tree path\n for (var i = level; i >= 0; i--) {\n extend(path[i], bbox);\n }\n },\n\n _condense: function (path) {\n // go through the path, removing empty nodes and updating bboxes\n for (var i = path.length - 1, siblings; i >= 0; i--) {\n if (path[i].children.length === 0) {\n if (i > 0) {\n siblings = path[i - 1].children;\n siblings.splice(siblings.indexOf(path[i]), 1);\n\n } else this.clear();\n\n } else calcBBox(path[i], this.toBBox);\n }\n },\n\n _initFormat: function (format) {\n // data format (minX, minY, maxX, maxY accessors)\n\n // uses eval-type function compilation instead of just accepting a toBBox function\n // because the algorithms are very sensitive to sorting functions performance,\n // so they should be dead simple and without inner calls\n\n var compareArr = ['return a', ' - b', ';'];\n\n this.compareMinX = new Function('a', 'b', compareArr.join(format[0]));\n this.compareMinY = new Function('a', 'b', compareArr.join(format[1]));\n\n this.toBBox = new Function('a',\n 'return {minX: a' + format[0] +\n ', minY: a' + format[1] +\n ', maxX: a' + format[2] +\n ', maxY: a' + format[3] + '};');\n }\n};\n\nfunction findItem(item, items, equalsFn) {\n if (!equalsFn) return items.indexOf(item);\n\n for (var i = 0; i < items.length; i++) {\n if (equalsFn(item, items[i])) return i;\n }\n return -1;\n}\n\n// calculate node's bbox from bboxes of its children\nfunction calcBBox(node, toBBox) {\n distBBox(node, 0, node.children.length, toBBox, node);\n}\n\n// min bounding rectangle of node children from k to p-1\nfunction distBBox(node, k, p, toBBox, destNode) {\n if (!destNode) destNode = createNode(null);\n destNode.minX = Infinity;\n destNode.minY = Infinity;\n destNode.maxX = -Infinity;\n destNode.maxY = -Infinity;\n\n for (var i = k, child; i < p; i++) {\n child = node.children[i];\n extend(destNode, node.leaf ? toBBox(child) : child);\n }\n\n return destNode;\n}\n\nfunction extend(a, b) {\n a.minX = Math.min(a.minX, b.minX);\n a.minY = Math.min(a.minY, b.minY);\n a.maxX = Math.max(a.maxX, b.maxX);\n a.maxY = Math.max(a.maxY, b.maxY);\n return a;\n}\n\nfunction compareNodeMinX(a, b) { return a.minX - b.minX; }\nfunction compareNodeMinY(a, b) { return a.minY - b.minY; }\n\nfunction bboxArea(a) { return (a.maxX - a.minX) * (a.maxY - a.minY); }\nfunction bboxMargin(a) { return (a.maxX - a.minX) + (a.maxY - a.minY); }\n\nfunction enlargedArea(a, b) {\n return (Math.max(b.maxX, a.maxX) - Math.min(b.minX, a.minX)) *\n (Math.max(b.maxY, a.maxY) - Math.min(b.minY, a.minY));\n}\n\nfunction intersectionArea(a, b) {\n var minX = Math.max(a.minX, b.minX),\n minY = Math.max(a.minY, b.minY),\n maxX = Math.min(a.maxX, b.maxX),\n maxY = Math.min(a.maxY, b.maxY);\n\n return Math.max(0, maxX - minX) *\n Math.max(0, maxY - minY);\n}\n\nfunction contains(a, b) {\n return a.minX <= b.minX &&\n a.minY <= b.minY &&\n b.maxX <= a.maxX &&\n b.maxY <= a.maxY;\n}\n\nfunction intersects(a, b) {\n return b.minX <= a.maxX &&\n b.minY <= a.maxY &&\n b.maxX >= a.minX &&\n b.maxY >= a.minY;\n}\n\nfunction createNode(children) {\n return {\n children: children,\n height: 1,\n leaf: true,\n minX: Infinity,\n minY: Infinity,\n maxX: -Infinity,\n maxY: -Infinity\n };\n}\n\n// sort an array so that items come in groups of n unsorted items, with groups sorted between each other;\n// combines selection algorithm with binary divide & conquer approach\n\nfunction multiSelect(arr, left, right, n, compare) {\n var stack = [left, right],\n mid;\n\n while (stack.length) {\n right = stack.pop();\n left = stack.pop();\n\n if (right - left <= n) continue;\n\n mid = left + Math.ceil((right - left) / n / 2) * n;\n quickselect(arr, mid, left, right, compare);\n\n stack.push(left, mid, mid, right);\n }\n}\n","'use strict';\n\nmodule.exports = Pbf;\n\nvar ieee754 = require('ieee754');\n\nfunction Pbf(buf) {\n this.buf = ArrayBuffer.isView && ArrayBuffer.isView(buf) ? buf : new Uint8Array(buf || 0);\n this.pos = 0;\n this.type = 0;\n this.length = this.buf.length;\n}\n\nPbf.Varint = 0; // varint: int32, int64, uint32, uint64, sint32, sint64, bool, enum\nPbf.Fixed64 = 1; // 64-bit: double, fixed64, sfixed64\nPbf.Bytes = 2; // length-delimited: string, bytes, embedded messages, packed repeated fields\nPbf.Fixed32 = 5; // 32-bit: float, fixed32, sfixed32\n\nvar SHIFT_LEFT_32 = (1 << 16) * (1 << 16),\n SHIFT_RIGHT_32 = 1 / SHIFT_LEFT_32;\n\nPbf.prototype = {\n\n destroy: function() {\n this.buf = null;\n },\n\n // === READING =================================================================\n\n readFields: function(readField, result, end) {\n end = end || this.length;\n\n while (this.pos < end) {\n var val = this.readVarint(),\n tag = val >> 3,\n startPos = this.pos;\n\n this.type = val & 0x7;\n readField(tag, result, this);\n\n if (this.pos === startPos) this.skip(val);\n }\n return result;\n },\n\n readMessage: function(readField, result) {\n return this.readFields(readField, result, this.readVarint() + this.pos);\n },\n\n readFixed32: function() {\n var val = readUInt32(this.buf, this.pos);\n this.pos += 4;\n return val;\n },\n\n readSFixed32: function() {\n var val = readInt32(this.buf, this.pos);\n this.pos += 4;\n return val;\n },\n\n // 64-bit int handling is based on github.com/dpw/node-buffer-more-ints (MIT-licensed)\n\n readFixed64: function() {\n var val = readUInt32(this.buf, this.pos) + readUInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;\n this.pos += 8;\n return val;\n },\n\n readSFixed64: function() {\n var val = readUInt32(this.buf, this.pos) + readInt32(this.buf, this.pos + 4) * SHIFT_LEFT_32;\n this.pos += 8;\n return val;\n },\n\n readFloat: function() {\n var val = ieee754.read(this.buf, this.pos, true, 23, 4);\n this.pos += 4;\n return val;\n },\n\n readDouble: function() {\n var val = ieee754.read(this.buf, this.pos, true, 52, 8);\n this.pos += 8;\n return val;\n },\n\n readVarint: function(isSigned) {\n var buf = this.buf,\n val, b;\n\n b = buf[this.pos++]; val = b & 0x7f; if (b < 0x80) return val;\n b = buf[this.pos++]; val |= (b & 0x7f) << 7; if (b < 0x80) return val;\n b = buf[this.pos++]; val |= (b & 0x7f) << 14; if (b < 0x80) return val;\n b = buf[this.pos++]; val |= (b & 0x7f) << 21; if (b < 0x80) return val;\n b = buf[this.pos]; val |= (b & 0x0f) << 28;\n\n return readVarintRemainder(val, isSigned, this);\n },\n\n readVarint64: function() { // for compatibility with v2.0.1\n return this.readVarint(true);\n },\n\n readSVarint: function() {\n var num = this.readVarint();\n return num % 2 === 1 ? (num + 1) / -2 : num / 2; // zigzag encoding\n },\n\n readBoolean: function() {\n return Boolean(this.readVarint());\n },\n\n readString: function() {\n var end = this.readVarint() + this.pos,\n str = readUtf8(this.buf, this.pos, end);\n this.pos = end;\n return str;\n },\n\n readBytes: function() {\n var end = this.readVarint() + this.pos,\n buffer = this.buf.subarray(this.pos, end);\n this.pos = end;\n return buffer;\n },\n\n // verbose for performance reasons; doesn't affect gzipped size\n\n readPackedVarint: function(arr, isSigned) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readVarint(isSigned));\n return arr;\n },\n readPackedSVarint: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readSVarint());\n return arr;\n },\n readPackedBoolean: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readBoolean());\n return arr;\n },\n readPackedFloat: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readFloat());\n return arr;\n },\n readPackedDouble: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readDouble());\n return arr;\n },\n readPackedFixed32: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readFixed32());\n return arr;\n },\n readPackedSFixed32: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readSFixed32());\n return arr;\n },\n readPackedFixed64: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readFixed64());\n return arr;\n },\n readPackedSFixed64: function(arr) {\n var end = readPackedEnd(this);\n arr = arr || [];\n while (this.pos < end) arr.push(this.readSFixed64());\n return arr;\n },\n\n skip: function(val) {\n var type = val & 0x7;\n if (type === Pbf.Varint) while (this.buf[this.pos++] > 0x7f) {}\n else if (type === Pbf.Bytes) this.pos = this.readVarint() + this.pos;\n else if (type === Pbf.Fixed32) this.pos += 4;\n else if (type === Pbf.Fixed64) this.pos += 8;\n else throw new Error('Unimplemented type: ' + type);\n },\n\n // === WRITING =================================================================\n\n writeTag: function(tag, type) {\n this.writeVarint((tag << 3) | type);\n },\n\n realloc: function(min) {\n var length = this.length || 16;\n\n while (length < this.pos + min) length *= 2;\n\n if (length !== this.length) {\n var buf = new Uint8Array(length);\n buf.set(this.buf);\n this.buf = buf;\n this.length = length;\n }\n },\n\n finish: function() {\n this.length = this.pos;\n this.pos = 0;\n return this.buf.subarray(0, this.length);\n },\n\n writeFixed32: function(val) {\n this.realloc(4);\n writeInt32(this.buf, val, this.pos);\n this.pos += 4;\n },\n\n writeSFixed32: function(val) {\n this.realloc(4);\n writeInt32(this.buf, val, this.pos);\n this.pos += 4;\n },\n\n writeFixed64: function(val) {\n this.realloc(8);\n writeInt32(this.buf, val & -1, this.pos);\n writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);\n this.pos += 8;\n },\n\n writeSFixed64: function(val) {\n this.realloc(8);\n writeInt32(this.buf, val & -1, this.pos);\n writeInt32(this.buf, Math.floor(val * SHIFT_RIGHT_32), this.pos + 4);\n this.pos += 8;\n },\n\n writeVarint: function(val) {\n val = +val || 0;\n\n if (val > 0xfffffff || val < 0) {\n writeBigVarint(val, this);\n return;\n }\n\n this.realloc(4);\n\n this.buf[this.pos++] = val & 0x7f | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n this.buf[this.pos++] = ((val >>>= 7) & 0x7f) | (val > 0x7f ? 0x80 : 0); if (val <= 0x7f) return;\n this.buf[this.pos++] = (val >>> 7) & 0x7f;\n },\n\n writeSVarint: function(val) {\n this.writeVarint(val < 0 ? -val * 2 - 1 : val * 2);\n },\n\n writeBoolean: function(val) {\n this.writeVarint(Boolean(val));\n },\n\n writeString: function(str) {\n str = String(str);\n this.realloc(str.length * 4);\n\n this.pos++; // reserve 1 byte for short string length\n\n var startPos = this.pos;\n // write the string directly to the buffer and see how much was written\n this.pos = writeUtf8(this.buf, str, this.pos);\n var len = this.pos - startPos;\n\n if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);\n\n // finally, write the message length in the reserved place and restore the position\n this.pos = startPos - 1;\n this.writeVarint(len);\n this.pos += len;\n },\n\n writeFloat: function(val) {\n this.realloc(4);\n ieee754.write(this.buf, val, this.pos, true, 23, 4);\n this.pos += 4;\n },\n\n writeDouble: function(val) {\n this.realloc(8);\n ieee754.write(this.buf, val, this.pos, true, 52, 8);\n this.pos += 8;\n },\n\n writeBytes: function(buffer) {\n var len = buffer.length;\n this.writeVarint(len);\n this.realloc(len);\n for (var i = 0; i < len; i++) this.buf[this.pos++] = buffer[i];\n },\n\n writeRawMessage: function(fn, obj) {\n this.pos++; // reserve 1 byte for short message length\n\n // write the message directly to the buffer and see how much was written\n var startPos = this.pos;\n fn(obj, this);\n var len = this.pos - startPos;\n\n if (len >= 0x80) makeRoomForExtraLength(startPos, len, this);\n\n // finally, write the message length in the reserved place and restore the position\n this.pos = startPos - 1;\n this.writeVarint(len);\n this.pos += len;\n },\n\n writeMessage: function(tag, fn, obj) {\n this.writeTag(tag, Pbf.Bytes);\n this.writeRawMessage(fn, obj);\n },\n\n writePackedVarint: function(tag, arr) { this.writeMessage(tag, writePackedVarint, arr); },\n writePackedSVarint: function(tag, arr) { this.writeMessage(tag, writePackedSVarint, arr); },\n writePackedBoolean: function(tag, arr) { this.writeMessage(tag, writePackedBoolean, arr); },\n writePackedFloat: function(tag, arr) { this.writeMessage(tag, writePackedFloat, arr); },\n writePackedDouble: function(tag, arr) { this.writeMessage(tag, writePackedDouble, arr); },\n writePackedFixed32: function(tag, arr) { this.writeMessage(tag, writePackedFixed32, arr); },\n writePackedSFixed32: function(tag, arr) { this.writeMessage(tag, writePackedSFixed32, arr); },\n writePackedFixed64: function(tag, arr) { this.writeMessage(tag, writePackedFixed64, arr); },\n writePackedSFixed64: function(tag, arr) { this.writeMessage(tag, writePackedSFixed64, arr); },\n\n writeBytesField: function(tag, buffer) {\n this.writeTag(tag, Pbf.Bytes);\n this.writeBytes(buffer);\n },\n writeFixed32Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed32);\n this.writeFixed32(val);\n },\n writeSFixed32Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed32);\n this.writeSFixed32(val);\n },\n writeFixed64Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed64);\n this.writeFixed64(val);\n },\n writeSFixed64Field: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed64);\n this.writeSFixed64(val);\n },\n writeVarintField: function(tag, val) {\n this.writeTag(tag, Pbf.Varint);\n this.writeVarint(val);\n },\n writeSVarintField: function(tag, val) {\n this.writeTag(tag, Pbf.Varint);\n this.writeSVarint(val);\n },\n writeStringField: function(tag, str) {\n this.writeTag(tag, Pbf.Bytes);\n this.writeString(str);\n },\n writeFloatField: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed32);\n this.writeFloat(val);\n },\n writeDoubleField: function(tag, val) {\n this.writeTag(tag, Pbf.Fixed64);\n this.writeDouble(val);\n },\n writeBooleanField: function(tag, val) {\n this.writeVarintField(tag, Boolean(val));\n }\n};\n\nfunction readVarintRemainder(l, s, p) {\n var buf = p.buf,\n h, b;\n\n b = buf[p.pos++]; h = (b & 0x70) >> 4; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 3; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 10; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 17; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x7f) << 24; if (b < 0x80) return toNum(l, h, s);\n b = buf[p.pos++]; h |= (b & 0x01) << 31; if (b < 0x80) return toNum(l, h, s);\n\n throw new Error('Expected varint not more than 10 bytes');\n}\n\nfunction readPackedEnd(pbf) {\n return pbf.type === Pbf.Bytes ?\n pbf.readVarint() + pbf.pos : pbf.pos + 1;\n}\n\nfunction toNum(low, high, isSigned) {\n if (isSigned) {\n return high * 0x100000000 + (low >>> 0);\n }\n\n return ((high >>> 0) * 0x100000000) + (low >>> 0);\n}\n\nfunction writeBigVarint(val, pbf) {\n var low, high;\n\n if (val >= 0) {\n low = (val % 0x100000000) | 0;\n high = (val / 0x100000000) | 0;\n } else {\n low = ~(-val % 0x100000000);\n high = ~(-val / 0x100000000);\n\n if (low ^ 0xffffffff) {\n low = (low + 1) | 0;\n } else {\n low = 0;\n high = (high + 1) | 0;\n }\n }\n\n if (val >= 0x10000000000000000 || val < -0x10000000000000000) {\n throw new Error('Given varint doesn\\'t fit into 10 bytes');\n }\n\n pbf.realloc(10);\n\n writeBigVarintLow(low, high, pbf);\n writeBigVarintHigh(high, pbf);\n}\n\nfunction writeBigVarintLow(low, high, pbf) {\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos++] = low & 0x7f | 0x80; low >>>= 7;\n pbf.buf[pbf.pos] = low & 0x7f;\n}\n\nfunction writeBigVarintHigh(high, pbf) {\n var lsb = (high & 0x07) << 4;\n\n pbf.buf[pbf.pos++] |= lsb | ((high >>>= 3) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f | ((high >>>= 7) ? 0x80 : 0); if (!high) return;\n pbf.buf[pbf.pos++] = high & 0x7f;\n}\n\nfunction makeRoomForExtraLength(startPos, len, pbf) {\n var extraLen =\n len <= 0x3fff ? 1 :\n len <= 0x1fffff ? 2 :\n len <= 0xfffffff ? 3 : Math.ceil(Math.log(len) / (Math.LN2 * 7));\n\n // if 1 byte isn't enough for encoding message length, shift the data to the right\n pbf.realloc(extraLen);\n for (var i = pbf.pos - 1; i >= startPos; i--) pbf.buf[i + extraLen] = pbf.buf[i];\n}\n\nfunction writePackedVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeVarint(arr[i]); }\nfunction writePackedSVarint(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSVarint(arr[i]); }\nfunction writePackedFloat(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFloat(arr[i]); }\nfunction writePackedDouble(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeDouble(arr[i]); }\nfunction writePackedBoolean(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeBoolean(arr[i]); }\nfunction writePackedFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFixed32(arr[i]); }\nfunction writePackedSFixed32(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed32(arr[i]); }\nfunction writePackedFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeFixed64(arr[i]); }\nfunction writePackedSFixed64(arr, pbf) { for (var i = 0; i < arr.length; i++) pbf.writeSFixed64(arr[i]); }\n\n// Buffer code below from https://github.com/feross/buffer, MIT-licensed\n\nfunction readUInt32(buf, pos) {\n return ((buf[pos]) |\n (buf[pos + 1] << 8) |\n (buf[pos + 2] << 16)) +\n (buf[pos + 3] * 0x1000000);\n}\n\nfunction writeInt32(buf, val, pos) {\n buf[pos] = val;\n buf[pos + 1] = (val >>> 8);\n buf[pos + 2] = (val >>> 16);\n buf[pos + 3] = (val >>> 24);\n}\n\nfunction readInt32(buf, pos) {\n return ((buf[pos]) |\n (buf[pos + 1] << 8) |\n (buf[pos + 2] << 16)) +\n (buf[pos + 3] << 24);\n}\n\nfunction readUtf8(buf, pos, end) {\n var str = '';\n var i = pos;\n\n while (i < end) {\n var b0 = buf[i];\n var c = null; // codepoint\n var bytesPerSequence =\n b0 > 0xEF ? 4 :\n b0 > 0xDF ? 3 :\n b0 > 0xBF ? 2 : 1;\n\n if (i + bytesPerSequence > end) break;\n\n var b1, b2, b3;\n\n if (bytesPerSequence === 1) {\n if (b0 < 0x80) {\n c = b0;\n }\n } else if (bytesPerSequence === 2) {\n b1 = buf[i + 1];\n if ((b1 & 0xC0) === 0x80) {\n c = (b0 & 0x1F) << 0x6 | (b1 & 0x3F);\n if (c <= 0x7F) {\n c = null;\n }\n }\n } else if (bytesPerSequence === 3) {\n b1 = buf[i + 1];\n b2 = buf[i + 2];\n if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80) {\n c = (b0 & 0xF) << 0xC | (b1 & 0x3F) << 0x6 | (b2 & 0x3F);\n if (c <= 0x7FF || (c >= 0xD800 && c <= 0xDFFF)) {\n c = null;\n }\n }\n } else if (bytesPerSequence === 4) {\n b1 = buf[i + 1];\n b2 = buf[i + 2];\n b3 = buf[i + 3];\n if ((b1 & 0xC0) === 0x80 && (b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {\n c = (b0 & 0xF) << 0x12 | (b1 & 0x3F) << 0xC | (b2 & 0x3F) << 0x6 | (b3 & 0x3F);\n if (c <= 0xFFFF || c >= 0x110000) {\n c = null;\n }\n }\n }\n\n if (c === null) {\n c = 0xFFFD;\n bytesPerSequence = 1;\n\n } else if (c > 0xFFFF) {\n c -= 0x10000;\n str += String.fromCharCode(c >>> 10 & 0x3FF | 0xD800);\n c = 0xDC00 | c & 0x3FF;\n }\n\n str += String.fromCharCode(c);\n i += bytesPerSequence;\n }\n\n return str;\n}\n\nfunction writeUtf8(buf, str, pos) {\n for (var i = 0, c, lead; i < str.length; i++) {\n c = str.charCodeAt(i); // code point\n\n if (c > 0xD7FF && c < 0xE000) {\n if (lead) {\n if (c < 0xDC00) {\n buf[pos++] = 0xEF;\n buf[pos++] = 0xBF;\n buf[pos++] = 0xBD;\n lead = c;\n continue;\n } else {\n c = lead - 0xD800 << 10 | c - 0xDC00 | 0x10000;\n lead = null;\n }\n } else {\n if (c > 0xDBFF || (i + 1 === str.length)) {\n buf[pos++] = 0xEF;\n buf[pos++] = 0xBF;\n buf[pos++] = 0xBD;\n } else {\n lead = c;\n }\n continue;\n }\n } else if (lead) {\n buf[pos++] = 0xEF;\n buf[pos++] = 0xBF;\n buf[pos++] = 0xBD;\n lead = null;\n }\n\n if (c < 0x80) {\n buf[pos++] = c;\n } else {\n if (c < 0x800) {\n buf[pos++] = c >> 0x6 | 0xC0;\n } else {\n if (c < 0x10000) {\n buf[pos++] = c >> 0xC | 0xE0;\n } else {\n buf[pos++] = c >> 0x12 | 0xF0;\n buf[pos++] = c >> 0xC & 0x3F | 0x80;\n }\n buf[pos++] = c >> 0x6 & 0x3F | 0x80;\n }\n buf[pos++] = c & 0x3F | 0x80;\n }\n }\n return pos;\n}\n","var Processor = require('./processor');\n\nexports.Processor = Processor;\n","(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(global.quickselect = factory());\n}(this, (function () { 'use strict';\n\nfunction quickselect(arr, k, left, right, compare) {\n quickselectStep(arr, k, left || 0, right || (arr.length - 1), compare || defaultCompare);\n}\n\nfunction quickselectStep(arr, k, left, right, compare) {\n\n while (right > left) {\n if (right - left > 600) {\n var n = right - left + 1;\n var m = k - left + 1;\n var z = Math.log(n);\n var s = 0.5 * Math.exp(2 * z / 3);\n var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);\n var newLeft = Math.max(left, Math.floor(k - m * s / n + sd));\n var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));\n quickselectStep(arr, k, newLeft, newRight, compare);\n }\n\n var t = arr[k];\n var i = left;\n var j = right;\n\n swap(arr, left, k);\n if (compare(arr[right], t) > 0) swap(arr, left, right);\n\n while (i < j) {\n swap(arr, i, j);\n i++;\n j--;\n while (compare(arr[i], t) < 0) i++;\n while (compare(arr[j], t) > 0) j--;\n }\n\n if (compare(arr[left], t) === 0) swap(arr, left, j);\n else {\n j++;\n swap(arr, j, right);\n }\n\n if (j <= k) left = j + 1;\n if (k <= j) right = j - 1;\n }\n}\n\nfunction swap(arr, i, j) {\n var tmp = arr[i];\n arr[i] = arr[j];\n arr[j] = tmp;\n}\n\nfunction defaultCompare(a, b) {\n return a < b ? -1 : a > b ? 1 : 0;\n}\n\nreturn quickselect;\n\n})));\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var nBits = -7\n var i = isLE ? (nBytes - 1) : 0\n var d = isLE ? -1 : 1\n var s = buffer[offset + i]\n\n i += d\n\n e = s & ((1 << (-nBits)) - 1)\n s >>= (-nBits)\n nBits += eLen\n for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & ((1 << (-nBits)) - 1)\n e >>= (-nBits)\n nBits += mLen\n for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias\n } else if (e === eMax) {\n return m ? NaN : ((s ? -1 : 1) * Infinity)\n } else {\n m = m + Math.pow(2, mLen)\n e = e - eBias\n }\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n var i = isLE ? 0 : (nBytes - 1)\n var d = isLE ? 1 : -1\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n value = Math.abs(value)\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0\n e = eMax\n } else {\n e = Math.floor(Math.log(value) / Math.LN2)\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--\n c *= 2\n }\n if (e + eBias >= 1) {\n value += rt / c\n } else {\n value += rt * Math.pow(2, 1 - eBias)\n }\n if (value * c >= 2) {\n e++\n c /= 2\n }\n\n if (e + eBias >= eMax) {\n m = 0\n e = eMax\n } else if (e + eBias >= 1) {\n m = ((value * c) - 1) * Math.pow(2, mLen)\n e = e + eBias\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n e = 0\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n e = (e << mLen) | m\n eLen += mLen\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128\n}\n","var newImageData = require('./util').newImageData;\n\n/**\n * Create a function for running operations. This function is serialized for\n * use in a worker.\n * @param {function(Array, Object):*} operation The operation.\n * @return {function(Object):ArrayBuffer} A function that takes an object with\n * buffers, meta, imageOps, width, and height properties and returns an array\n * buffer.\n */\nfunction createMinion(operation) {\n var workerHasImageData = true;\n try {\n new ImageData(10, 10);\n } catch (_) {\n workerHasImageData = false;\n }\n\n function newWorkerImageData(data, width, height) {\n if (workerHasImageData) {\n return new ImageData(data, width, height);\n } else {\n return {data: data, width: width, height: height};\n }\n }\n\n return function(data) {\n // bracket notation for minification support\n var buffers = data['buffers'];\n var meta = data['meta'];\n var imageOps = data['imageOps'];\n var width = data['width'];\n var height = data['height'];\n\n var numBuffers = buffers.length;\n var numBytes = buffers[0].byteLength;\n var output, b;\n\n if (imageOps) {\n var images = new Array(numBuffers);\n for (b = 0; b < numBuffers; ++b) {\n images[b] = newWorkerImageData(\n new Uint8ClampedArray(buffers[b]), width, height);\n }\n output = operation(images, meta).data;\n } else {\n output = new Uint8ClampedArray(numBytes);\n var arrays = new Array(numBuffers);\n var pixels = new Array(numBuffers);\n for (b = 0; b < numBuffers; ++b) {\n arrays[b] = new Uint8ClampedArray(buffers[b]);\n pixels[b] = [0, 0, 0, 0];\n }\n for (var i = 0; i < numBytes; i += 4) {\n for (var j = 0; j < numBuffers; ++j) {\n var array = arrays[j];\n pixels[j][0] = array[i];\n pixels[j][1] = array[i + 1];\n pixels[j][2] = array[i + 2];\n pixels[j][3] = array[i + 3];\n }\n var pixel = operation(pixels, meta);\n output[i] = pixel[0];\n output[i + 1] = pixel[1];\n output[i + 2] = pixel[2];\n output[i + 3] = pixel[3];\n }\n }\n return output.buffer;\n };\n}\n\n/**\n * Create a worker for running operations.\n * @param {Object} config Configuration.\n * @param {function(MessageEvent)} onMessage Called with a message event.\n * @return {Worker} The worker.\n */\nfunction createWorker(config, onMessage) {\n var lib = Object.keys(config.lib || {}).map(function(name) {\n return 'var ' + name + ' = ' + config.lib[name].toString() + ';';\n });\n\n var lines = lib.concat([\n 'var __minion__ = (' + createMinion.toString() + ')(', config.operation.toString(), ');',\n 'self.addEventListener(\"message\", function(event) {',\n ' var buffer = __minion__(event.data);',\n ' self.postMessage({buffer: buffer, meta: event.data.meta}, [buffer]);',\n '});'\n ]);\n\n var blob = new Blob(lines, {type: 'text/javascript'});\n var source = URL.createObjectURL(blob);\n var worker = new Worker(source);\n worker.addEventListener('message', onMessage);\n return worker;\n}\n\n/**\n * Create a faux worker for running operations.\n * @param {Object} config Configuration.\n * @param {function(MessageEvent)} onMessage Called with a message event.\n * @return {Object} The faux worker.\n */\nfunction createFauxWorker(config, onMessage) {\n var minion = createMinion(config.operation);\n return {\n postMessage: function(data) {\n setTimeout(function() {\n onMessage({'data': {'buffer': minion(data), 'meta': data['meta']}});\n }, 0);\n }\n };\n}\n\n/**\n * A processor runs pixel or image operations in workers.\n * @param {Object} config Configuration.\n */\nfunction Processor(config) {\n this._imageOps = !!config.imageOps;\n var threads;\n if (config.threads === 0) {\n threads = 0;\n } else if (this._imageOps) {\n threads = 1;\n } else {\n threads = config.threads || 1;\n }\n var workers = [];\n if (threads) {\n for (var i = 0; i < threads; ++i) {\n workers[i] = createWorker(config, this._onWorkerMessage.bind(this, i));\n }\n } else {\n workers[0] = createFauxWorker(config, this._onWorkerMessage.bind(this, 0));\n }\n this._workers = workers;\n this._queue = [];\n this._maxQueueLength = config.queue || Infinity;\n this._running = 0;\n this._dataLookup = {};\n this._job = null;\n}\n\n/**\n * Run operation on input data.\n * @param {Array.} inputs Array of pixels or image data\n * (depending on the operation type).\n * @param {Object} meta A user data object. This is passed to all operations\n * and must be serializable.\n * @param {function(Error, ImageData, Object)} callback Called when work\n * completes. The first argument is any error. The second is the ImageData\n * generated by operations. The third is the user data object.\n */\nProcessor.prototype.process = function(inputs, meta, callback) {\n this._enqueue({\n inputs: inputs,\n meta: meta,\n callback: callback\n });\n this._dispatch();\n};\n\n/**\n * Stop responding to any completed work and destroy the processor.\n */\nProcessor.prototype.destroy = function() {\n for (var key in this) {\n this[key] = null;\n }\n this._destroyed = true;\n};\n\n/**\n * Add a job to the queue.\n * @param {Object} job The job.\n */\nProcessor.prototype._enqueue = function(job) {\n this._queue.push(job);\n while (this._queue.length > this._maxQueueLength) {\n this._queue.shift().callback(null, null);\n }\n};\n\n/**\n * Dispatch a job.\n */\nProcessor.prototype._dispatch = function() {\n if (this._running === 0 && this._queue.length > 0) {\n var job = this._job = this._queue.shift();\n var width = job.inputs[0].width;\n var height = job.inputs[0].height;\n var buffers = job.inputs.map(function(input) {\n return input.data.buffer;\n });\n var threads = this._workers.length;\n this._running = threads;\n if (threads === 1) {\n this._workers[0].postMessage({\n 'buffers': buffers,\n 'meta': job.meta,\n 'imageOps': this._imageOps,\n 'width': width,\n 'height': height\n }, buffers);\n } else {\n var length = job.inputs[0].data.length;\n var segmentLength = 4 * Math.ceil(length / 4 / threads);\n for (var i = 0; i < threads; ++i) {\n var offset = i * segmentLength;\n var slices = [];\n for (var j = 0, jj = buffers.length; j < jj; ++j) {\n slices.push(buffers[i].slice(offset, offset + segmentLength));\n }\n this._workers[i].postMessage({\n 'buffers': slices,\n 'meta': job.meta,\n 'imageOps': this._imageOps,\n 'width': width,\n 'height': height\n }, slices);\n }\n }\n }\n};\n\n/**\n * Handle messages from the worker.\n * @param {number} index The worker index.\n * @param {MessageEvent} event The message event.\n */\nProcessor.prototype._onWorkerMessage = function(index, event) {\n if (this._destroyed) {\n return;\n }\n this._dataLookup[index] = event.data;\n --this._running;\n if (this._running === 0) {\n this._resolveJob();\n }\n};\n\n/**\n * Resolve a job. If there are no more worker threads, the processor callback\n * will be called.\n */\nProcessor.prototype._resolveJob = function() {\n var job = this._job;\n var threads = this._workers.length;\n var data, meta;\n if (threads === 1) {\n data = new Uint8ClampedArray(this._dataLookup[0]['buffer']);\n meta = this._dataLookup[0]['meta'];\n } else {\n var length = job.inputs[0].data.length;\n data = new Uint8ClampedArray(length);\n meta = new Array(length);\n var segmentLength = 4 * Math.ceil(length / 4 / threads);\n for (var i = 0; i < threads; ++i) {\n var buffer = this._dataLookup[i]['buffer'];\n var offset = i * segmentLength;\n data.set(new Uint8ClampedArray(buffer), offset);\n meta[i] = this._dataLookup[i]['meta'];\n }\n }\n this._job = null;\n this._dataLookup = {};\n job.callback(null,\n newImageData(data, job.inputs[0].width, job.inputs[0].height), meta);\n this._dispatch();\n};\n\nmodule.exports = Processor;\n","var hasImageData = true;\ntry {\n new ImageData(10, 10);\n} catch (_) {\n hasImageData = false;\n}\n\nvar context = document.createElement('canvas').getContext('2d');\n\nfunction newImageData(data, width, height) {\n if (hasImageData) {\n return new ImageData(data, width, height);\n } else {\n var imageData = context.createImageData(width, height);\n imageData.data.set(data);\n return imageData;\n }\n}\n\nexports.newImageData = newImageData;\n","/**\n * @module ol/util\n */\n\n/**\n * @return {?} Any return.\n */\nexport function abstract() {\n return /** @type {?} */ ((function() {\n throw new Error('Unimplemented abstract method.');\n })());\n}\n\n/**\n * Inherit the prototype methods from one constructor into another.\n *\n * Usage:\n *\n * function ParentClass(a, b) { }\n * ParentClass.prototype.foo = function(a) { }\n *\n * function ChildClass(a, b, c) {\n * // Call parent constructor\n * ParentClass.call(this, a, b);\n * }\n * inherits(ChildClass, ParentClass);\n *\n * var child = new ChildClass('a', 'b', 'see');\n * child.foo(); // This works.\n *\n * @param {!Function} childCtor Child constructor.\n * @param {!Function} parentCtor Parent constructor.\n * @function module:ol.inherits\n * @deprecated\n * @api\n */\nexport function inherits(childCtor, parentCtor) {\n childCtor.prototype = Object.create(parentCtor.prototype);\n childCtor.prototype.constructor = childCtor;\n}\n\n/**\n * Counter for getUid.\n * @type {number}\n * @private\n */\nvar uidCounter_ = 0;\n\n/**\n * Gets a unique ID for an object. This mutates the object so that further calls\n * with the same object as a parameter returns the same value. Unique IDs are generated\n * as a strictly increasing sequence. Adapted from goog.getUid.\n *\n * @param {Object} obj The object to get the unique ID for.\n * @return {string} The unique ID for the object.\n * @function module:ol.getUid\n * @api\n */\nexport function getUid(obj) {\n return obj.ol_uid || (obj.ol_uid = String(++uidCounter_));\n}\n\n/**\n * OpenLayers version.\n * @type {string}\n */\nexport var VERSION = '5.3.3';\n\n//# sourceMappingURL=util.js.map","/**\n * @module ol/AssertionError\n */\nimport {VERSION} from './util.js';\n\n/**\n * Error object thrown when an assertion failed. This is an ECMA-262 Error,\n * extended with a `code` property.\n * See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error.\n */\nvar AssertionError = /*@__PURE__*/(function (Error) {\n function AssertionError(code) {\n var path = VERSION === 'latest' ? VERSION : 'v' + VERSION.split('-')[0];\n var message = 'Assertion failed. See https://openlayers.org/en/' + path +\n '/doc/errors/#' + code + ' for details.';\n\n Error.call(this, message);\n\n /**\n * Error code. The meaning of the code can be found on\n * https://openlayers.org/en/latest/doc/errors/ (replace `latest` with\n * the version found in the OpenLayers script's header comment if a version\n * other than the latest is used).\n * @type {number}\n * @api\n */\n this.code = code;\n\n /**\n * @type {string}\n */\n this.name = 'AssertionError';\n\n // Re-assign message, see https://github.com/Rich-Harris/buble/issues/40\n this.message = message;\n }\n\n if ( Error ) AssertionError.__proto__ = Error;\n AssertionError.prototype = Object.create( Error && Error.prototype );\n AssertionError.prototype.constructor = AssertionError;\n\n return AssertionError;\n}(Error));\n\nexport default AssertionError;\n\n//# sourceMappingURL=AssertionError.js.map","/**\n * @module ol/CollectionEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered when an item is added to the collection.\n * @event module:ol/Collection.CollectionEvent#add\n * @api\n */\n ADD: 'add',\n /**\n * Triggered when an item is removed from the collection.\n * @event module:ol/Collection.CollectionEvent#remove\n * @api\n */\n REMOVE: 'remove'\n};\n\n//# sourceMappingURL=CollectionEventType.js.map","/**\n * @module ol/ObjectEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * Triggered when a property is changed.\n * @event module:ol/Object.ObjectEvent#propertychange\n * @api\n */\n PROPERTYCHANGE: 'propertychange'\n};\n\n//# sourceMappingURL=ObjectEventType.js.map","/**\n * @module ol/obj\n */\n\n\n/**\n * Polyfill for Object.assign(). Assigns enumerable and own properties from\n * one or more source objects to a target object.\n * See https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign.\n *\n * @param {!Object} target The target object.\n * @param {...Object} var_sources The source object(s).\n * @return {!Object} The modified target object.\n */\nexport var assign = (typeof Object.assign === 'function') ? Object.assign : function(target, var_sources) {\n var arguments$1 = arguments;\n\n if (target === undefined || target === null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n\n var output = Object(target);\n for (var i = 1, ii = arguments.length; i < ii; ++i) {\n var source = arguments$1[i];\n if (source !== undefined && source !== null) {\n for (var key in source) {\n if (source.hasOwnProperty(key)) {\n output[key] = source[key];\n }\n }\n }\n }\n return output;\n};\n\n\n/**\n * Removes all properties from an object.\n * @param {Object} object The object to clear.\n */\nexport function clear(object) {\n for (var property in object) {\n delete object[property];\n }\n}\n\n\n/**\n * Get an array of property values from an object.\n * @param {Object} object The object from which to get the values.\n * @return {!Array} The property values.\n * @template K,V\n */\nexport function getValues(object) {\n var values = [];\n for (var property in object) {\n values.push(object[property]);\n }\n return values;\n}\n\n\n/**\n * Determine if an object has any properties.\n * @param {Object} object The object to check.\n * @return {boolean} The object is empty.\n */\nexport function isEmpty(object) {\n var property;\n for (property in object) {\n return false;\n }\n return !property;\n}\n\n//# sourceMappingURL=obj.js.map","/**\n * @module ol/events\n */\nimport {clear} from './obj.js';\n\n\n/**\n * Key to use with {@link module:ol/Observable~Observable#unByKey}.\n * @typedef {Object} EventsKey\n * @property {Object} [bindTo]\n * @property {ListenerFunction} [boundListener]\n * @property {boolean} callOnce\n * @property {number} [deleteIndex]\n * @property {ListenerFunction} listener\n * @property {import(\"./events/Target.js\").EventTargetLike} target\n * @property {string} type\n * @api\n */\n\n\n/**\n * Listener function. This function is called with an event object as argument.\n * When the function returns `false`, event propagation will stop.\n *\n * @typedef {function((Event|import(\"./events/Event.js\").default)): (void|boolean)} ListenerFunction\n * @api\n */\n\n\n/**\n * @param {EventsKey} listenerObj Listener object.\n * @return {ListenerFunction} Bound listener.\n */\nexport function bindListener(listenerObj) {\n var boundListener = function(evt) {\n var listener = listenerObj.listener;\n var bindTo = listenerObj.bindTo || listenerObj.target;\n if (listenerObj.callOnce) {\n unlistenByKey(listenerObj);\n }\n return listener.call(bindTo, evt);\n };\n listenerObj.boundListener = boundListener;\n return boundListener;\n}\n\n\n/**\n * Finds the matching {@link module:ol/events~EventsKey} in the given listener\n * array.\n *\n * @param {!Array} listeners Array of listeners.\n * @param {!Function} listener The listener function.\n * @param {Object=} opt_this The `this` value inside the listener.\n * @param {boolean=} opt_setDeleteIndex Set the deleteIndex on the matching\n * listener, for {@link module:ol/events~unlistenByKey}.\n * @return {EventsKey|undefined} The matching listener object.\n */\nexport function findListener(listeners, listener, opt_this, opt_setDeleteIndex) {\n var listenerObj;\n for (var i = 0, ii = listeners.length; i < ii; ++i) {\n listenerObj = listeners[i];\n if (listenerObj.listener === listener &&\n listenerObj.bindTo === opt_this) {\n if (opt_setDeleteIndex) {\n listenerObj.deleteIndex = i;\n }\n return listenerObj;\n }\n }\n return undefined;\n}\n\n\n/**\n * @param {import(\"./events/Target.js\").EventTargetLike} target Target.\n * @param {string} type Type.\n * @return {Array|undefined} Listeners.\n */\nexport function getListeners(target, type) {\n var listenerMap = getListenerMap(target);\n return listenerMap ? listenerMap[type] : undefined;\n}\n\n\n/**\n * Get the lookup of listeners.\n * @param {Object} target Target.\n * @param {boolean=} opt_create If a map should be created if it doesn't exist.\n * @return {!Object>} Map of\n * listeners by event type.\n */\nfunction getListenerMap(target, opt_create) {\n var listenerMap = target.ol_lm;\n if (!listenerMap && opt_create) {\n listenerMap = target.ol_lm = {};\n }\n return listenerMap;\n}\n\n\n/**\n * Remove the listener map from a target.\n * @param {Object} target Target.\n */\nfunction removeListenerMap(target) {\n delete target.ol_lm;\n}\n\n\n/**\n * Clean up all listener objects of the given type. All properties on the\n * listener objects will be removed, and if no listeners remain in the listener\n * map, it will be removed from the target.\n * @param {import(\"./events/Target.js\").EventTargetLike} target Target.\n * @param {string} type Type.\n */\nfunction removeListeners(target, type) {\n var listeners = getListeners(target, type);\n if (listeners) {\n for (var i = 0, ii = listeners.length; i < ii; ++i) {\n /** @type {import(\"./events/Target.js\").default} */ (target).\n removeEventListener(type, listeners[i].boundListener);\n clear(listeners[i]);\n }\n listeners.length = 0;\n var listenerMap = getListenerMap(target);\n if (listenerMap) {\n delete listenerMap[type];\n if (Object.keys(listenerMap).length === 0) {\n removeListenerMap(target);\n }\n }\n }\n}\n\n\n/**\n * Registers an event listener on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * This function efficiently binds a `listener` to a `this` object, and returns\n * a key for use with {@link module:ol/events~unlistenByKey}.\n *\n * @param {import(\"./events/Target.js\").EventTargetLike} target Event target.\n * @param {string} type Event type.\n * @param {ListenerFunction} listener Listener.\n * @param {Object=} opt_this Object referenced by the `this` keyword in the\n * listener. Default is the `target`.\n * @param {boolean=} opt_once If true, add the listener as one-off listener.\n * @return {EventsKey} Unique key for the listener.\n */\nexport function listen(target, type, listener, opt_this, opt_once) {\n var listenerMap = getListenerMap(target, true);\n var listeners = listenerMap[type];\n if (!listeners) {\n listeners = listenerMap[type] = [];\n }\n var listenerObj = findListener(listeners, listener, opt_this, false);\n if (listenerObj) {\n if (!opt_once) {\n // Turn one-off listener into a permanent one.\n listenerObj.callOnce = false;\n }\n } else {\n listenerObj = /** @type {EventsKey} */ ({\n bindTo: opt_this,\n callOnce: !!opt_once,\n listener: listener,\n target: target,\n type: type\n });\n /** @type {import(\"./events/Target.js\").default} */ (target).\n addEventListener(type, bindListener(listenerObj));\n listeners.push(listenerObj);\n }\n\n return listenerObj;\n}\n\n\n/**\n * Registers a one-off event listener on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * This function efficiently binds a `listener` as self-unregistering listener\n * to a `this` object, and returns a key for use with\n * {@link module:ol/events~unlistenByKey} in case the listener needs to be\n * unregistered before it is called.\n *\n * When {@link module:ol/events~listen} is called with the same arguments after this\n * function, the self-unregistering listener will be turned into a permanent\n * listener.\n *\n * @param {import(\"./events/Target.js\").EventTargetLike} target Event target.\n * @param {string} type Event type.\n * @param {ListenerFunction} listener Listener.\n * @param {Object=} opt_this Object referenced by the `this` keyword in the\n * listener. Default is the `target`.\n * @return {EventsKey} Key for unlistenByKey.\n */\nexport function listenOnce(target, type, listener, opt_this) {\n return listen(target, type, listener, opt_this, true);\n}\n\n\n/**\n * Unregisters an event listener on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * To return a listener, this function needs to be called with the exact same\n * arguments that were used for a previous {@link module:ol/events~listen} call.\n *\n * @param {import(\"./events/Target.js\").EventTargetLike} target Event target.\n * @param {string} type Event type.\n * @param {ListenerFunction} listener Listener.\n * @param {Object=} opt_this Object referenced by the `this` keyword in the\n * listener. Default is the `target`.\n */\nexport function unlisten(target, type, listener, opt_this) {\n var listeners = getListeners(target, type);\n if (listeners) {\n var listenerObj = findListener(listeners, listener, opt_this, true);\n if (listenerObj) {\n unlistenByKey(listenerObj);\n }\n }\n}\n\n\n/**\n * Unregisters event listeners on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * The argument passed to this function is the key returned from\n * {@link module:ol/events~listen} or {@link module:ol/events~listenOnce}.\n *\n * @param {EventsKey} key The key.\n */\nexport function unlistenByKey(key) {\n if (key && key.target) {\n /** @type {import(\"./events/Target.js\").default} */ (key.target).\n removeEventListener(key.type, key.boundListener);\n var listeners = getListeners(key.target, key.type);\n if (listeners) {\n var i = 'deleteIndex' in key ? key.deleteIndex : listeners.indexOf(key);\n if (i !== -1) {\n listeners.splice(i, 1);\n }\n if (listeners.length === 0) {\n removeListeners(key.target, key.type);\n }\n }\n clear(key);\n }\n}\n\n\n/**\n * Unregisters all event listeners on an event target. Inspired by\n * https://google.github.io/closure-library/api/source/closure/goog/events/events.js.src.html\n *\n * @param {import(\"./events/Target.js\").EventTargetLike} target Target.\n */\nexport function unlistenAll(target) {\n var listenerMap = getListenerMap(target);\n if (listenerMap) {\n for (var type in listenerMap) {\n removeListeners(target, type);\n }\n }\n}\n\n//# sourceMappingURL=events.js.map","/**\n * @module ol/Disposable\n */\n\n/**\n * @classdesc\n * Objects that need to clean up after themselves.\n */\nvar Disposable = function Disposable() {\n /**\n * The object has already been disposed.\n * @type {boolean}\n * @private\n */\n this.disposed_ = false;\n};\n\n/**\n * Clean up.\n */\nDisposable.prototype.dispose = function dispose () {\n if (!this.disposed_) {\n this.disposed_ = true;\n this.disposeInternal();\n }\n};\n\n/**\n * Extension point for disposable objects.\n * @protected\n */\nDisposable.prototype.disposeInternal = function disposeInternal () {};\n\nexport default Disposable;\n\n//# sourceMappingURL=Disposable.js.map","/**\n * @module ol/functions\n */\n\n/**\n * Always returns true.\n * @returns {boolean} true.\n */\nexport function TRUE() {\n return true;\n}\n\n/**\n * Always returns false.\n * @returns {boolean} false.\n */\nexport function FALSE() {\n return false;\n}\n\n/**\n * A reusable function, used e.g. as a default for callbacks.\n *\n * @return {void} Nothing.\n */\nexport function VOID() {}\n\n//# sourceMappingURL=functions.js.map","/**\n * @module ol/events/Event\n */\n\n/**\n * @classdesc\n * Stripped down implementation of the W3C DOM Level 2 Event interface.\n * See https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-interface.\n *\n * This implementation only provides `type` and `target` properties, and\n * `stopPropagation` and `preventDefault` methods. It is meant as base class\n * for higher level events defined in the library, and works with\n * {@link module:ol/events/Target~Target}.\n */\nvar Event = function Event(type) {\n\n /**\n * @type {boolean}\n */\n this.propagationStopped;\n\n /**\n * The event type.\n * @type {string}\n * @api\n */\n this.type = type;\n\n /**\n * The event target.\n * @type {Object}\n * @api\n */\n this.target = null;\n};\n\n/**\n * Stop event propagation.\n * @api\n */\nEvent.prototype.preventDefault = function preventDefault () {\n this.propagationStopped = true;\n};\n\n/**\n * Stop event propagation.\n * @api\n */\nEvent.prototype.stopPropagation = function stopPropagation () {\n this.propagationStopped = true;\n};\n\n\n/**\n * @param {Event|import(\"./Event.js\").default} evt Event\n */\nexport function stopPropagation(evt) {\n evt.stopPropagation();\n}\n\n\n/**\n * @param {Event|import(\"./Event.js\").default} evt Event\n */\nexport function preventDefault(evt) {\n evt.preventDefault();\n}\n\nexport default Event;\n\n//# sourceMappingURL=Event.js.map","/**\n * @module ol/events/Target\n */\nimport Disposable from '../Disposable.js';\nimport {unlistenAll} from '../events.js';\nimport {VOID} from '../functions.js';\nimport Event from './Event.js';\n\n\n/**\n * @typedef {EventTarget|Target} EventTargetLike\n */\n\n\n/**\n * @classdesc\n * A simplified implementation of the W3C DOM Level 2 EventTarget interface.\n * See https://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html#Events-EventTarget.\n *\n * There are two important simplifications compared to the specification:\n *\n * 1. The handling of `useCapture` in `addEventListener` and\n * `removeEventListener`. There is no real capture model.\n * 2. The handling of `stopPropagation` and `preventDefault` on `dispatchEvent`.\n * There is no event target hierarchy. When a listener calls\n * `stopPropagation` or `preventDefault` on an event object, it means that no\n * more listeners after this one will be called. Same as when the listener\n * returns false.\n */\nvar Target = /*@__PURE__*/(function (Disposable) {\n function Target() {\n\n Disposable.call(this);\n\n /**\n * @private\n * @type {!Object}\n */\n this.pendingRemovals_ = {};\n\n /**\n * @private\n * @type {!Object}\n */\n this.dispatching_ = {};\n\n /**\n * @private\n * @type {!Object>}\n */\n this.listeners_ = {};\n\n }\n\n if ( Disposable ) Target.__proto__ = Disposable;\n Target.prototype = Object.create( Disposable && Disposable.prototype );\n Target.prototype.constructor = Target;\n\n /**\n * @param {string} type Type.\n * @param {import(\"../events.js\").ListenerFunction} listener Listener.\n */\n Target.prototype.addEventListener = function addEventListener (type, listener) {\n var listeners = this.listeners_[type];\n if (!listeners) {\n listeners = this.listeners_[type] = [];\n }\n if (listeners.indexOf(listener) === -1) {\n listeners.push(listener);\n }\n };\n\n /**\n * Dispatches an event and calls all listeners listening for events\n * of this type. The event parameter can either be a string or an\n * Object with a `type` property.\n *\n * @param {{type: string,\n * target: (EventTargetLike|undefined),\n * propagationStopped: (boolean|undefined)}|\n * import(\"./Event.js\").default|string} event Event object.\n * @return {boolean|undefined} `false` if anyone called preventDefault on the\n * event object or if any of the listeners returned false.\n * @api\n */\n Target.prototype.dispatchEvent = function dispatchEvent (event) {\n var evt = typeof event === 'string' ? new Event(event) : event;\n var type = evt.type;\n evt.target = this;\n var listeners = this.listeners_[type];\n var propagate;\n if (listeners) {\n if (!(type in this.dispatching_)) {\n this.dispatching_[type] = 0;\n this.pendingRemovals_[type] = 0;\n }\n ++this.dispatching_[type];\n for (var i = 0, ii = listeners.length; i < ii; ++i) {\n if (listeners[i].call(this, evt) === false || evt.propagationStopped) {\n propagate = false;\n break;\n }\n }\n --this.dispatching_[type];\n if (this.dispatching_[type] === 0) {\n var pendingRemovals = this.pendingRemovals_[type];\n delete this.pendingRemovals_[type];\n while (pendingRemovals--) {\n this.removeEventListener(type, VOID);\n }\n delete this.dispatching_[type];\n }\n return propagate;\n }\n };\n\n /**\n * @inheritDoc\n */\n Target.prototype.disposeInternal = function disposeInternal () {\n unlistenAll(this);\n };\n\n /**\n * Get the listeners for a specified event type. Listeners are returned in the\n * order that they will be called in.\n *\n * @param {string} type Type.\n * @return {Array} Listeners.\n */\n Target.prototype.getListeners = function getListeners (type) {\n return this.listeners_[type];\n };\n\n /**\n * @param {string=} opt_type Type. If not provided,\n * `true` will be returned if this event target has any listeners.\n * @return {boolean} Has listeners.\n */\n Target.prototype.hasListener = function hasListener (opt_type) {\n return opt_type ?\n opt_type in this.listeners_ :\n Object.keys(this.listeners_).length > 0;\n };\n\n /**\n * @param {string} type Type.\n * @param {import(\"../events.js\").ListenerFunction} listener Listener.\n */\n Target.prototype.removeEventListener = function removeEventListener (type, listener) {\n var listeners = this.listeners_[type];\n if (listeners) {\n var index = listeners.indexOf(listener);\n if (type in this.pendingRemovals_) {\n // make listener a no-op, and remove later in #dispatchEvent()\n listeners[index] = VOID;\n ++this.pendingRemovals_[type];\n } else {\n listeners.splice(index, 1);\n if (listeners.length === 0) {\n delete this.listeners_[type];\n }\n }\n }\n };\n\n return Target;\n}(Disposable));\n\n\nexport default Target;\n\n//# sourceMappingURL=Target.js.map","/**\n * @module ol/events/EventType\n */\n\n/**\n * @enum {string}\n * @const\n */\nexport default {\n /**\n * Generic change event. Triggered when the revision counter is increased.\n * @event module:ol/events/Event~Event#change\n * @api\n */\n CHANGE: 'change',\n\n CLEAR: 'clear',\n CONTEXTMENU: 'contextmenu',\n CLICK: 'click',\n DBLCLICK: 'dblclick',\n DRAGENTER: 'dragenter',\n DRAGOVER: 'dragover',\n DROP: 'drop',\n ERROR: 'error',\n KEYDOWN: 'keydown',\n KEYPRESS: 'keypress',\n LOAD: 'load',\n MOUSEDOWN: 'mousedown',\n MOUSEMOVE: 'mousemove',\n MOUSEOUT: 'mouseout',\n MOUSEUP: 'mouseup',\n MOUSEWHEEL: 'mousewheel',\n MSPOINTERDOWN: 'MSPointerDown',\n RESIZE: 'resize',\n TOUCHSTART: 'touchstart',\n TOUCHMOVE: 'touchmove',\n TOUCHEND: 'touchend',\n WHEEL: 'wheel'\n};\n\n//# sourceMappingURL=EventType.js.map","/**\n * @module ol/Observable\n */\nimport {listen, unlistenByKey, unlisten, listenOnce} from './events.js';\nimport EventTarget from './events/Target.js';\nimport EventType from './events/EventType.js';\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * An event target providing convenient methods for listener registration\n * and unregistration. A generic `change` event is always available through\n * {@link module:ol/Observable~Observable#changed}.\n *\n * @fires import(\"./events/Event.js\").Event\n * @api\n */\nvar Observable = /*@__PURE__*/(function (EventTarget) {\n function Observable() {\n\n EventTarget.call(this);\n\n /**\n * @private\n * @type {number}\n */\n this.revision_ = 0;\n\n }\n\n if ( EventTarget ) Observable.__proto__ = EventTarget;\n Observable.prototype = Object.create( EventTarget && EventTarget.prototype );\n Observable.prototype.constructor = Observable;\n\n /**\n * Increases the revision counter and dispatches a 'change' event.\n * @api\n */\n Observable.prototype.changed = function changed () {\n ++this.revision_;\n this.dispatchEvent(EventType.CHANGE);\n };\n\n /**\n * Get the version number for this object. Each time the object is modified,\n * its version number will be incremented.\n * @return {number} Revision.\n * @api\n */\n Observable.prototype.getRevision = function getRevision () {\n return this.revision_;\n };\n\n /**\n * Listen for a certain type of event.\n * @param {string|Array} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array} Unique key for the listener. If\n * called with an array of event types as the first argument, the return\n * will be an array of keys.\n * @api\n */\n Observable.prototype.on = function on (type, listener) {\n if (Array.isArray(type)) {\n var len = type.length;\n var keys = new Array(len);\n for (var i = 0; i < len; ++i) {\n keys[i] = listen(this, type[i], listener);\n }\n return keys;\n } else {\n return listen(this, /** @type {string} */ (type), listener);\n }\n };\n\n /**\n * Listen once for a certain type of event.\n * @param {string|Array} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @return {import(\"./events.js\").EventsKey|Array} Unique key for the listener. If\n * called with an array of event types as the first argument, the return\n * will be an array of keys.\n * @api\n */\n Observable.prototype.once = function once (type, listener) {\n if (Array.isArray(type)) {\n var len = type.length;\n var keys = new Array(len);\n for (var i = 0; i < len; ++i) {\n keys[i] = listenOnce(this, type[i], listener);\n }\n return keys;\n } else {\n return listenOnce(this, /** @type {string} */ (type), listener);\n }\n };\n\n /**\n * Unlisten for a certain type of event.\n * @param {string|Array} type The event type or array of event types.\n * @param {function(?): ?} listener The listener function.\n * @api\n */\n Observable.prototype.un = function un (type, listener) {\n if (Array.isArray(type)) {\n for (var i = 0, ii = type.length; i < ii; ++i) {\n unlisten(this, type[i], listener);\n }\n return;\n } else {\n unlisten(this, /** @type {string} */ (type), listener);\n }\n };\n\n return Observable;\n}(EventTarget));\n\n\n/**\n * Removes an event listener using the key returned by `on()` or `once()`.\n * @param {import(\"./events.js\").EventsKey|Array} key The key returned by `on()`\n * or `once()` (or an array of keys).\n * @api\n */\nexport function unByKey(key) {\n if (Array.isArray(key)) {\n for (var i = 0, ii = key.length; i < ii; ++i) {\n unlistenByKey(key[i]);\n }\n } else {\n unlistenByKey(/** @type {import(\"./events.js\").EventsKey} */ (key));\n }\n}\n\n\nexport default Observable;\n\n//# sourceMappingURL=Observable.js.map","/**\n * @module ol/Object\n */\nimport {getUid} from './util.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport Observable from './Observable.js';\nimport Event from './events/Event.js';\nimport {assign} from './obj.js';\n\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Object~BaseObject} instances are instances of this type.\n */\nexport var ObjectEvent = /*@__PURE__*/(function (Event) {\n function ObjectEvent(type, key, oldValue) {\n Event.call(this, type);\n\n /**\n * The name of the property whose value is changing.\n * @type {string}\n * @api\n */\n this.key = key;\n\n /**\n * The old value. To get the new value use `e.target.get(e.key)` where\n * `e` is the event object.\n * @type {*}\n * @api\n */\n this.oldValue = oldValue;\n\n }\n\n if ( Event ) ObjectEvent.__proto__ = Event;\n ObjectEvent.prototype = Object.create( Event && Event.prototype );\n ObjectEvent.prototype.constructor = ObjectEvent;\n\n return ObjectEvent;\n}(Event));\n\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Most non-trivial classes inherit from this.\n *\n * This extends {@link module:ol/Observable} with observable\n * properties, where each property is observable as well as the object as a\n * whole.\n *\n * Classes that inherit from this have pre-defined properties, to which you can\n * add your owns. The pre-defined properties are listed in this documentation as\n * 'Observable Properties', and have their own accessors; for example,\n * {@link module:ol/Map~Map} has a `target` property, accessed with\n * `getTarget()` and changed with `setTarget()`. Not all properties are however\n * settable. There are also general-purpose accessors `get()` and `set()`. For\n * example, `get('target')` is equivalent to `getTarget()`.\n *\n * The `set` accessors trigger a change event, and you can monitor this by\n * registering a listener. For example, {@link module:ol/View~View} has a\n * `center` property, so `view.on('change:center', function(evt) {...});` would\n * call the function whenever the value of the center property changes. Within\n * the function, `evt.target` would be the view, so `evt.target.getCenter()`\n * would return the new center.\n *\n * You can add your own observable properties with\n * `object.set('prop', 'value')`, and retrieve that with `object.get('prop')`.\n * You can listen for changes on that property value with\n * `object.on('change:prop', listener)`. You can get a list of all\n * properties with {@link module:ol/Object~BaseObject#getProperties}.\n *\n * Note that the observable properties are separate from standard JS properties.\n * You can, for example, give your map object a title with\n * `map.title='New title'` and with `map.set('title', 'Another title')`. The\n * first will be a `hasOwnProperty`; the second will appear in\n * `getProperties()`. Only the second is observable.\n *\n * Properties can be deleted by using the unset method. E.g.\n * object.unset('foo').\n *\n * @fires ObjectEvent\n * @api\n */\nvar BaseObject = /*@__PURE__*/(function (Observable) {\n function BaseObject(opt_values) {\n Observable.call(this);\n\n // Call {@link module:ol/util~getUid} to ensure that the order of objects' ids is\n // the same as the order in which they were created. This also helps to\n // ensure that object properties are always added in the same order, which\n // helps many JavaScript engines generate faster code.\n getUid(this);\n\n /**\n * @private\n * @type {!Object}\n */\n this.values_ = {};\n\n if (opt_values !== undefined) {\n this.setProperties(opt_values);\n }\n }\n\n if ( Observable ) BaseObject.__proto__ = Observable;\n BaseObject.prototype = Object.create( Observable && Observable.prototype );\n BaseObject.prototype.constructor = BaseObject;\n\n /**\n * Gets a value.\n * @param {string} key Key name.\n * @return {*} Value.\n * @api\n */\n BaseObject.prototype.get = function get (key) {\n var value;\n if (this.values_.hasOwnProperty(key)) {\n value = this.values_[key];\n }\n return value;\n };\n\n /**\n * Get a list of object property names.\n * @return {Array} List of property names.\n * @api\n */\n BaseObject.prototype.getKeys = function getKeys () {\n return Object.keys(this.values_);\n };\n\n /**\n * Get an object of all property names and values.\n * @return {Object} Object.\n * @api\n */\n BaseObject.prototype.getProperties = function getProperties () {\n return assign({}, this.values_);\n };\n\n /**\n * @param {string} key Key name.\n * @param {*} oldValue Old value.\n */\n BaseObject.prototype.notify = function notify (key, oldValue) {\n var eventType;\n eventType = getChangeEventType(key);\n this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));\n eventType = ObjectEventType.PROPERTYCHANGE;\n this.dispatchEvent(new ObjectEvent(eventType, key, oldValue));\n };\n\n /**\n * Sets a value.\n * @param {string} key Key name.\n * @param {*} value Value.\n * @param {boolean=} opt_silent Update without triggering an event.\n * @api\n */\n BaseObject.prototype.set = function set (key, value, opt_silent) {\n if (opt_silent) {\n this.values_[key] = value;\n } else {\n var oldValue = this.values_[key];\n this.values_[key] = value;\n if (oldValue !== value) {\n this.notify(key, oldValue);\n }\n }\n };\n\n /**\n * Sets a collection of key-value pairs. Note that this changes any existing\n * properties and adds new ones (it does not remove any existing properties).\n * @param {Object} values Values.\n * @param {boolean=} opt_silent Update without triggering an event.\n * @api\n */\n BaseObject.prototype.setProperties = function setProperties (values, opt_silent) {\n for (var key in values) {\n this.set(key, values[key], opt_silent);\n }\n };\n\n /**\n * Unsets a property.\n * @param {string} key Key name.\n * @param {boolean=} opt_silent Unset without triggering an event.\n * @api\n */\n BaseObject.prototype.unset = function unset (key, opt_silent) {\n if (key in this.values_) {\n var oldValue = this.values_[key];\n delete this.values_[key];\n if (!opt_silent) {\n this.notify(key, oldValue);\n }\n }\n };\n\n return BaseObject;\n}(Observable));\n\n\n/**\n * @type {Object}\n */\nvar changeEventTypeCache = {};\n\n\n/**\n * @param {string} key Key name.\n * @return {string} Change name.\n */\nexport function getChangeEventType(key) {\n return changeEventTypeCache.hasOwnProperty(key) ?\n changeEventTypeCache[key] :\n (changeEventTypeCache[key] = 'change:' + key);\n}\n\n\nexport default BaseObject;\n\n//# sourceMappingURL=Object.js.map","/**\n * @module ol/Collection\n */\nimport AssertionError from './AssertionError.js';\nimport CollectionEventType from './CollectionEventType.js';\nimport BaseObject from './Object.js';\nimport Event from './events/Event.js';\n\n\n/**\n * @enum {string}\n * @private\n */\nvar Property = {\n LENGTH: 'length'\n};\n\n\n/**\n * @classdesc\n * Events emitted by {@link module:ol/Collection~Collection} instances are instances of this\n * type.\n */\nexport var CollectionEvent = /*@__PURE__*/(function (Event) {\n function CollectionEvent(type, opt_element) {\n Event.call(this, type);\n\n /**\n * The element that is added to or removed from the collection.\n * @type {*}\n * @api\n */\n this.element = opt_element;\n\n }\n\n if ( Event ) CollectionEvent.__proto__ = Event;\n CollectionEvent.prototype = Object.create( Event && Event.prototype );\n CollectionEvent.prototype.constructor = CollectionEvent;\n\n return CollectionEvent;\n}(Event));\n\n\n/**\n * @typedef {Object} Options\n * @property {boolean} [unique=false] Disallow the same item from being added to\n * the collection twice.\n */\n\n/**\n * @classdesc\n * An expanded version of standard JS Array, adding convenience methods for\n * manipulation. Add and remove changes to the Collection trigger a Collection\n * event. Note that this does not cover changes to the objects _within_ the\n * Collection; they trigger events on the appropriate object, not on the\n * Collection as a whole.\n *\n * @fires CollectionEvent\n *\n * @template T\n * @api\n */\nvar Collection = /*@__PURE__*/(function (BaseObject) {\n function Collection(opt_array, opt_options) {\n\n BaseObject.call(this);\n\n var options = opt_options || {};\n\n /**\n * @private\n * @type {boolean}\n */\n this.unique_ = !!options.unique;\n\n /**\n * @private\n * @type {!Array}\n */\n this.array_ = opt_array ? opt_array : [];\n\n if (this.unique_) {\n for (var i = 0, ii = this.array_.length; i < ii; ++i) {\n this.assertUnique_(this.array_[i], i);\n }\n }\n\n this.updateLength_();\n\n }\n\n if ( BaseObject ) Collection.__proto__ = BaseObject;\n Collection.prototype = Object.create( BaseObject && BaseObject.prototype );\n Collection.prototype.constructor = Collection;\n\n /**\n * Remove all elements from the collection.\n * @api\n */\n Collection.prototype.clear = function clear () {\n while (this.getLength() > 0) {\n this.pop();\n }\n };\n\n /**\n * Add elements to the collection. This pushes each item in the provided array\n * to the end of the collection.\n * @param {!Array} arr Array.\n * @return {Collection} This collection.\n * @api\n */\n Collection.prototype.extend = function extend (arr) {\n for (var i = 0, ii = arr.length; i < ii; ++i) {\n this.push(arr[i]);\n }\n return this;\n };\n\n /**\n * Iterate over each element, calling the provided callback.\n * @param {function(T, number, Array): *} f The function to call\n * for every element. This function takes 3 arguments (the element, the\n * index and the array). The return value is ignored.\n * @api\n */\n Collection.prototype.forEach = function forEach (f) {\n var array = this.array_;\n for (var i = 0, ii = array.length; i < ii; ++i) {\n f(array[i], i, array);\n }\n };\n\n /**\n * Get a reference to the underlying Array object. Warning: if the array\n * is mutated, no events will be dispatched by the collection, and the\n * collection's \"length\" property won't be in sync with the actual length\n * of the array.\n * @return {!Array} Array.\n * @api\n */\n Collection.prototype.getArray = function getArray () {\n return this.array_;\n };\n\n /**\n * Get the element at the provided index.\n * @param {number} index Index.\n * @return {T} Element.\n * @api\n */\n Collection.prototype.item = function item (index) {\n return this.array_[index];\n };\n\n /**\n * Get the length of this collection.\n * @return {number} The length of the array.\n * @observable\n * @api\n */\n Collection.prototype.getLength = function getLength () {\n return this.get(Property.LENGTH);\n };\n\n /**\n * Insert an element at the provided index.\n * @param {number} index Index.\n * @param {T} elem Element.\n * @api\n */\n Collection.prototype.insertAt = function insertAt (index, elem) {\n if (this.unique_) {\n this.assertUnique_(elem);\n }\n this.array_.splice(index, 0, elem);\n this.updateLength_();\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.ADD, elem));\n };\n\n /**\n * Remove the last element of the collection and return it.\n * Return `undefined` if the collection is empty.\n * @return {T|undefined} Element.\n * @api\n */\n Collection.prototype.pop = function pop () {\n return this.removeAt(this.getLength() - 1);\n };\n\n /**\n * Insert the provided element at the end of the collection.\n * @param {T} elem Element.\n * @return {number} New length of the collection.\n * @api\n */\n Collection.prototype.push = function push (elem) {\n if (this.unique_) {\n this.assertUnique_(elem);\n }\n var n = this.getLength();\n this.insertAt(n, elem);\n return this.getLength();\n };\n\n /**\n * Remove the first occurrence of an element from the collection.\n * @param {T} elem Element.\n * @return {T|undefined} The removed element or undefined if none found.\n * @api\n */\n Collection.prototype.remove = function remove (elem) {\n var arr = this.array_;\n for (var i = 0, ii = arr.length; i < ii; ++i) {\n if (arr[i] === elem) {\n return this.removeAt(i);\n }\n }\n return undefined;\n };\n\n /**\n * Remove the element at the provided index and return it.\n * Return `undefined` if the collection does not contain this index.\n * @param {number} index Index.\n * @return {T|undefined} Value.\n * @api\n */\n Collection.prototype.removeAt = function removeAt (index) {\n var prev = this.array_[index];\n this.array_.splice(index, 1);\n this.updateLength_();\n this.dispatchEvent(new CollectionEvent(CollectionEventType.REMOVE, prev));\n return prev;\n };\n\n /**\n * Set the element at the provided index.\n * @param {number} index Index.\n * @param {T} elem Element.\n * @api\n */\n Collection.prototype.setAt = function setAt (index, elem) {\n var n = this.getLength();\n if (index < n) {\n if (this.unique_) {\n this.assertUnique_(elem, index);\n }\n var prev = this.array_[index];\n this.array_[index] = elem;\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.REMOVE, prev));\n this.dispatchEvent(\n new CollectionEvent(CollectionEventType.ADD, elem));\n } else {\n for (var j = n; j < index; ++j) {\n this.insertAt(j, undefined);\n }\n this.insertAt(index, elem);\n }\n };\n\n /**\n * @private\n */\n Collection.prototype.updateLength_ = function updateLength_ () {\n this.set(Property.LENGTH, this.array_.length);\n };\n\n /**\n * @private\n * @param {T} elem Element.\n * @param {number=} opt_except Optional index to ignore.\n */\n Collection.prototype.assertUnique_ = function assertUnique_ (elem, opt_except) {\n for (var i = 0, ii = this.array_.length; i < ii; ++i) {\n if (this.array_[i] === elem && i !== opt_except) {\n throw new AssertionError(58);\n }\n }\n };\n\n return Collection;\n}(BaseObject));\n\n\nexport default Collection;\n\n//# sourceMappingURL=Collection.js.map","/**\n * @module ol/asserts\n */\nimport AssertionError from './AssertionError.js';\n\n/**\n * @param {*} assertion Assertion we expected to be truthy.\n * @param {number} errorCode Error code.\n */\nexport function assert(assertion, errorCode) {\n if (!assertion) {\n throw new AssertionError(errorCode);\n }\n}\n\n//# sourceMappingURL=asserts.js.map","/**\n * @module ol/Feature\n */\nimport {assert} from './asserts.js';\nimport {listen, unlisten, unlistenByKey} from './events.js';\nimport EventType from './events/EventType.js';\nimport BaseObject, {getChangeEventType} from './Object.js';\n\n/**\n * @typedef {typeof Feature|typeof import(\"./render/Feature.js\").default} FeatureClass\n */\n\n/**\n * @typedef {Feature|import(\"./render/Feature.js\").default} FeatureLike\n */\n\n/**\n * @classdesc\n * A vector object for geographic features with a geometry and other\n * attribute properties, similar to the features in vector file formats like\n * GeoJSON.\n *\n * Features can be styled individually with `setStyle`; otherwise they use the\n * style of their vector layer.\n *\n * Note that attribute properties are set as {@link module:ol/Object} properties on\n * the feature object, so they are observable, and have get/set accessors.\n *\n * Typically, a feature has a single geometry property. You can set the\n * geometry using the `setGeometry` method and get it with `getGeometry`.\n * It is possible to store more than one geometry on a feature using attribute\n * properties. By default, the geometry used for rendering is identified by\n * the property name `geometry`. If you want to use another geometry property\n * for rendering, use the `setGeometryName` method to change the attribute\n * property associated with the geometry for the feature. For example:\n *\n * ```js\n *\n * import Feature from 'ol/Feature';\n * import Polygon from 'ol/geom/Polygon';\n * import Point from 'ol/geom/Point';\n *\n * var feature = new Feature({\n * geometry: new Polygon(polyCoords),\n * labelPoint: new Point(labelCoords),\n * name: 'My Polygon'\n * });\n *\n * // get the polygon geometry\n * var poly = feature.getGeometry();\n *\n * // Render the feature as a point using the coordinates from labelPoint\n * feature.setGeometryName('labelPoint');\n *\n * // get the point geometry\n * var point = feature.getGeometry();\n * ```\n *\n * @api\n */\nvar Feature = /*@__PURE__*/(function (BaseObject) {\n function Feature(opt_geometryOrProperties) {\n\n BaseObject.call(this);\n\n /**\n * @private\n * @type {number|string|undefined}\n */\n this.id_ = undefined;\n\n /**\n * @type {string}\n * @private\n */\n this.geometryName_ = 'geometry';\n\n /**\n * User provided style.\n * @private\n * @type {import(\"./style/Style.js\").StyleLike}\n */\n this.style_ = null;\n\n /**\n * @private\n * @type {import(\"./style/Style.js\").StyleFunction|undefined}\n */\n this.styleFunction_ = undefined;\n\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.geometryChangeKey_ = null;\n\n listen(\n this, getChangeEventType(this.geometryName_),\n this.handleGeometryChanged_, this);\n\n if (opt_geometryOrProperties) {\n if (typeof /** @type {?} */ (opt_geometryOrProperties).getSimplifiedGeometry === 'function') {\n var geometry = /** @type {import(\"./geom/Geometry.js\").default} */ (opt_geometryOrProperties);\n this.setGeometry(geometry);\n } else {\n /** @type {Object} */\n var properties = opt_geometryOrProperties;\n this.setProperties(properties);\n }\n }\n }\n\n if ( BaseObject ) Feature.__proto__ = BaseObject;\n Feature.prototype = Object.create( BaseObject && BaseObject.prototype );\n Feature.prototype.constructor = Feature;\n\n /**\n * Clone this feature. If the original feature has a geometry it\n * is also cloned. The feature id is not set in the clone.\n * @return {Feature} The clone.\n * @api\n */\n Feature.prototype.clone = function clone () {\n var clone = new Feature(this.getProperties());\n clone.setGeometryName(this.getGeometryName());\n var geometry = this.getGeometry();\n if (geometry) {\n clone.setGeometry(geometry.clone());\n }\n var style = this.getStyle();\n if (style) {\n clone.setStyle(style);\n }\n return clone;\n };\n\n /**\n * Get the feature's default geometry. A feature may have any number of named\n * geometries. The \"default\" geometry (the one that is rendered by default) is\n * set when calling {@link module:ol/Feature~Feature#setGeometry}.\n * @return {import(\"./geom/Geometry.js\").default|undefined} The default geometry for the feature.\n * @api\n * @observable\n */\n Feature.prototype.getGeometry = function getGeometry () {\n return (\n /** @type {import(\"./geom/Geometry.js\").default|undefined} */ (this.get(this.geometryName_))\n );\n };\n\n /**\n * Get the feature identifier. This is a stable identifier for the feature and\n * is either set when reading data from a remote source or set explicitly by\n * calling {@link module:ol/Feature~Feature#setId}.\n * @return {number|string|undefined} Id.\n * @api\n */\n Feature.prototype.getId = function getId () {\n return this.id_;\n };\n\n /**\n * Get the name of the feature's default geometry. By default, the default\n * geometry is named `geometry`.\n * @return {string} Get the property name associated with the default geometry\n * for this feature.\n * @api\n */\n Feature.prototype.getGeometryName = function getGeometryName () {\n return this.geometryName_;\n };\n\n /**\n * Get the feature's style. Will return what was provided to the\n * {@link module:ol/Feature~Feature#setStyle} method.\n * @return {import(\"./style/Style.js\").StyleLike} The feature style.\n * @api\n */\n Feature.prototype.getStyle = function getStyle () {\n return this.style_;\n };\n\n /**\n * Get the feature's style function.\n * @return {import(\"./style/Style.js\").StyleFunction|undefined} Return a function\n * representing the current style of this feature.\n * @api\n */\n Feature.prototype.getStyleFunction = function getStyleFunction () {\n return this.styleFunction_;\n };\n\n /**\n * @private\n */\n Feature.prototype.handleGeometryChange_ = function handleGeometryChange_ () {\n this.changed();\n };\n\n /**\n * @private\n */\n Feature.prototype.handleGeometryChanged_ = function handleGeometryChanged_ () {\n if (this.geometryChangeKey_) {\n unlistenByKey(this.geometryChangeKey_);\n this.geometryChangeKey_ = null;\n }\n var geometry = this.getGeometry();\n if (geometry) {\n this.geometryChangeKey_ = listen(geometry,\n EventType.CHANGE, this.handleGeometryChange_, this);\n }\n this.changed();\n };\n\n /**\n * Set the default geometry for the feature. This will update the property\n * with the name returned by {@link module:ol/Feature~Feature#getGeometryName}.\n * @param {import(\"./geom/Geometry.js\").default|undefined} geometry The new geometry.\n * @api\n * @observable\n */\n Feature.prototype.setGeometry = function setGeometry (geometry) {\n this.set(this.geometryName_, geometry);\n };\n\n /**\n * Set the style for the feature. This can be a single style object, an array\n * of styles, or a function that takes a resolution and returns an array of\n * styles. If it is `null` the feature has no style (a `null` style).\n * @param {import(\"./style/Style.js\").StyleLike} style Style for this feature.\n * @api\n * @fires module:ol/events/Event~Event#event:change\n */\n Feature.prototype.setStyle = function setStyle (style) {\n this.style_ = style;\n this.styleFunction_ = !style ? undefined : createStyleFunction(style);\n this.changed();\n };\n\n /**\n * Set the feature id. The feature id is considered stable and may be used when\n * requesting features or comparing identifiers returned from a remote source.\n * The feature id can be used with the\n * {@link module:ol/source/Vector~VectorSource#getFeatureById} method.\n * @param {number|string|undefined} id The feature id.\n * @api\n * @fires module:ol/events/Event~Event#event:change\n */\n Feature.prototype.setId = function setId (id) {\n this.id_ = id;\n this.changed();\n };\n\n /**\n * Set the property name to be used when getting the feature's default geometry.\n * When calling {@link module:ol/Feature~Feature#getGeometry}, the value of the property with\n * this name will be returned.\n * @param {string} name The property name of the default geometry.\n * @api\n */\n Feature.prototype.setGeometryName = function setGeometryName (name) {\n unlisten(\n this, getChangeEventType(this.geometryName_),\n this.handleGeometryChanged_, this);\n this.geometryName_ = name;\n listen(\n this, getChangeEventType(this.geometryName_),\n this.handleGeometryChanged_, this);\n this.handleGeometryChanged_();\n };\n\n return Feature;\n}(BaseObject));\n\n\n/**\n * Convert the provided object into a feature style function. Functions passed\n * through unchanged. Arrays of Style or single style objects wrapped\n * in a new feature style function.\n * @param {!import(\"./style/Style.js\").StyleFunction|!Array|!import(\"./style/Style.js\").default} obj\n * A feature style function, a single style, or an array of styles.\n * @return {import(\"./style/Style.js\").StyleFunction} A style function.\n */\nexport function createStyleFunction(obj) {\n if (typeof obj === 'function') {\n return obj;\n } else {\n /**\n * @type {Array}\n */\n var styles;\n if (Array.isArray(obj)) {\n styles = obj;\n } else {\n assert(typeof /** @type {?} */ (obj).getZIndex === 'function',\n 41); // Expected an `import(\"./style/Style.js\").Style` or an array of `import(\"./style/Style.js\").Style`\n var style = /** @type {import(\"./style/Style.js\").default} */ (obj);\n styles = [style];\n }\n return function() {\n return styles;\n };\n }\n}\nexport default Feature;\n\n//# sourceMappingURL=Feature.js.map","/**\n * @module ol/array\n */\n\n\n/**\n * Performs a binary search on the provided sorted list and returns the index of the item if found. If it can't be found it'll return -1.\n * https://github.com/darkskyapp/binary-search\n *\n * @param {Array<*>} haystack Items to search through.\n * @param {*} needle The item to look for.\n * @param {Function=} opt_comparator Comparator function.\n * @return {number} The index of the item if found, -1 if not.\n */\nexport function binarySearch(haystack, needle, opt_comparator) {\n var mid, cmp;\n var comparator = opt_comparator || numberSafeCompareFunction;\n var low = 0;\n var high = haystack.length;\n var found = false;\n\n while (low < high) {\n /* Note that \"(low + high) >>> 1\" may overflow, and results in a typecast\n * to double (which gives the wrong results). */\n mid = low + (high - low >> 1);\n cmp = +comparator(haystack[mid], needle);\n\n if (cmp < 0.0) { /* Too low. */\n low = mid + 1;\n\n } else { /* Key found or too high */\n high = mid;\n found = !cmp;\n }\n }\n\n /* Key not found. */\n return found ? low : ~low;\n}\n\n\n/**\n * Compare function for array sort that is safe for numbers.\n * @param {*} a The first object to be compared.\n * @param {*} b The second object to be compared.\n * @return {number} A negative number, zero, or a positive number as the first\n * argument is less than, equal to, or greater than the second.\n */\nexport function numberSafeCompareFunction(a, b) {\n return a > b ? 1 : a < b ? -1 : 0;\n}\n\n\n/**\n * Whether the array contains the given object.\n * @param {Array<*>} arr The array to test for the presence of the element.\n * @param {*} obj The object for which to test.\n * @return {boolean} The object is in the array.\n */\nexport function includes(arr, obj) {\n return arr.indexOf(obj) >= 0;\n}\n\n\n/**\n * @param {Array} arr Array.\n * @param {number} target Target.\n * @param {number} direction 0 means return the nearest, > 0\n * means return the largest nearest, < 0 means return the\n * smallest nearest.\n * @return {number} Index.\n */\nexport function linearFindNearest(arr, target, direction) {\n var n = arr.length;\n if (arr[0] <= target) {\n return 0;\n } else if (target <= arr[n - 1]) {\n return n - 1;\n } else {\n var i;\n if (direction > 0) {\n for (i = 1; i < n; ++i) {\n if (arr[i] < target) {\n return i - 1;\n }\n }\n } else if (direction < 0) {\n for (i = 1; i < n; ++i) {\n if (arr[i] <= target) {\n return i;\n }\n }\n } else {\n for (i = 1; i < n; ++i) {\n if (arr[i] == target) {\n return i;\n } else if (arr[i] < target) {\n if (arr[i - 1] - target < target - arr[i]) {\n return i - 1;\n } else {\n return i;\n }\n }\n }\n }\n return n - 1;\n }\n}\n\n\n/**\n * @param {Array<*>} arr Array.\n * @param {number} begin Begin index.\n * @param {number} end End index.\n */\nexport function reverseSubArray(arr, begin, end) {\n while (begin < end) {\n var tmp = arr[begin];\n arr[begin] = arr[end];\n arr[end] = tmp;\n ++begin;\n --end;\n }\n}\n\n\n/**\n * @param {Array} arr The array to modify.\n * @param {!Array|VALUE} data The elements or arrays of elements to add to arr.\n * @template VALUE\n */\nexport function extend(arr, data) {\n var extension = Array.isArray(data) ? data : [data];\n var length = extension.length;\n for (var i = 0; i < length; i++) {\n arr[arr.length] = extension[i];\n }\n}\n\n\n/**\n * @param {Array} arr The array to modify.\n * @param {VALUE} obj The element to remove.\n * @template VALUE\n * @return {boolean} If the element was removed.\n */\nexport function remove(arr, obj) {\n var i = arr.indexOf(obj);\n var found = i > -1;\n if (found) {\n arr.splice(i, 1);\n }\n return found;\n}\n\n\n/**\n * @param {Array} arr The array to search in.\n * @param {function(VALUE, number, ?) : boolean} func The function to compare.\n * @template VALUE\n * @return {VALUE|null} The element found or null.\n */\nexport function find(arr, func) {\n var length = arr.length >>> 0;\n var value;\n\n for (var i = 0; i < length; i++) {\n value = arr[i];\n if (func(value, i, arr)) {\n return value;\n }\n }\n return null;\n}\n\n\n/**\n * @param {Array|Uint8ClampedArray} arr1 The first array to compare.\n * @param {Array|Uint8ClampedArray} arr2 The second array to compare.\n * @return {boolean} Whether the two arrays are equal.\n */\nexport function equals(arr1, arr2) {\n var len1 = arr1.length;\n if (len1 !== arr2.length) {\n return false;\n }\n for (var i = 0; i < len1; i++) {\n if (arr1[i] !== arr2[i]) {\n return false;\n }\n }\n return true;\n}\n\n\n/**\n * Sort the passed array such that the relative order of equal elements is preverved.\n * See https://en.wikipedia.org/wiki/Sorting_algorithm#Stability for details.\n * @param {Array<*>} arr The array to sort (modifies original).\n * @param {!function(*, *): number} compareFnc Comparison function.\n * @api\n */\nexport function stableSort(arr, compareFnc) {\n var length = arr.length;\n var tmp = Array(arr.length);\n var i;\n for (i = 0; i < length; i++) {\n tmp[i] = {index: i, value: arr[i]};\n }\n tmp.sort(function(a, b) {\n return compareFnc(a.value, b.value) || a.index - b.index;\n });\n for (i = 0; i < arr.length; i++) {\n arr[i] = tmp[i].value;\n }\n}\n\n\n/**\n * @param {Array<*>} arr The array to search in.\n * @param {Function} func Comparison function.\n * @return {number} Return index.\n */\nexport function findIndex(arr, func) {\n var index;\n var found = !arr.every(function(el, idx) {\n index = idx;\n return !func(el, idx, arr);\n });\n return found ? index : -1;\n}\n\n\n/**\n * @param {Array<*>} arr The array to test.\n * @param {Function=} opt_func Comparison function.\n * @param {boolean=} opt_strict Strictly sorted (default false).\n * @return {boolean} Return index.\n */\nexport function isSorted(arr, opt_func, opt_strict) {\n var compare = opt_func || numberSafeCompareFunction;\n return arr.every(function(currentVal, index) {\n if (index === 0) {\n return true;\n }\n var res = compare(arr[index - 1], currentVal);\n return !(res > 0 || opt_strict && res === 0);\n });\n}\n\n//# sourceMappingURL=array.js.map","/**\n * @module ol/extent/Corner\n */\n\n/**\n * Extent corner.\n * @enum {string}\n */\nexport default {\n BOTTOM_LEFT: 'bottom-left',\n BOTTOM_RIGHT: 'bottom-right',\n TOP_LEFT: 'top-left',\n TOP_RIGHT: 'top-right'\n};\n\n//# sourceMappingURL=Corner.js.map","/**\n * @module ol/extent/Relationship\n */\n\n/**\n * Relationship to an extent.\n * @enum {number}\n */\nexport default {\n UNKNOWN: 0,\n INTERSECTING: 1,\n ABOVE: 2,\n RIGHT: 4,\n BELOW: 8,\n LEFT: 16\n};\n\n//# sourceMappingURL=Relationship.js.map","/**\n * @module ol/extent\n */\nimport {assert} from './asserts.js';\nimport Corner from './extent/Corner.js';\nimport Relationship from './extent/Relationship.js';\n\n\n/**\n * An array of numbers representing an extent: `[minx, miny, maxx, maxy]`.\n * @typedef {Array} Extent\n * @api\n */\n\n/**\n * Build an extent that includes all given coordinates.\n *\n * @param {Array} coordinates Coordinates.\n * @return {Extent} Bounding extent.\n * @api\n */\nexport function boundingExtent(coordinates) {\n var extent = createEmpty();\n for (var i = 0, ii = coordinates.length; i < ii; ++i) {\n extendCoordinate(extent, coordinates[i]);\n }\n return extent;\n}\n\n\n/**\n * @param {Array} xs Xs.\n * @param {Array} ys Ys.\n * @param {Extent=} opt_extent Destination extent.\n * @private\n * @return {Extent} Extent.\n */\nfunction _boundingExtentXYs(xs, ys, opt_extent) {\n var minX = Math.min.apply(null, xs);\n var minY = Math.min.apply(null, ys);\n var maxX = Math.max.apply(null, xs);\n var maxY = Math.max.apply(null, ys);\n return createOrUpdate(minX, minY, maxX, maxY, opt_extent);\n}\n\n\n/**\n * Return extent increased by the provided value.\n * @param {Extent} extent Extent.\n * @param {number} value The amount by which the extent should be buffered.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n * @api\n */\nexport function buffer(extent, value, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = extent[0] - value;\n opt_extent[1] = extent[1] - value;\n opt_extent[2] = extent[2] + value;\n opt_extent[3] = extent[3] + value;\n return opt_extent;\n } else {\n return [\n extent[0] - value,\n extent[1] - value,\n extent[2] + value,\n extent[3] + value\n ];\n }\n}\n\n\n/**\n * Creates a clone of an extent.\n *\n * @param {Extent} extent Extent to clone.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} The clone.\n */\nexport function clone(extent, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = extent[0];\n opt_extent[1] = extent[1];\n opt_extent[2] = extent[2];\n opt_extent[3] = extent[3];\n return opt_extent;\n } else {\n return extent.slice();\n }\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {number} Closest squared distance.\n */\nexport function closestSquaredDistanceXY(extent, x, y) {\n var dx, dy;\n if (x < extent[0]) {\n dx = extent[0] - x;\n } else if (extent[2] < x) {\n dx = x - extent[2];\n } else {\n dx = 0;\n }\n if (y < extent[1]) {\n dy = extent[1] - y;\n } else if (extent[3] < y) {\n dy = y - extent[3];\n } else {\n dy = 0;\n }\n return dx * dx + dy * dy;\n}\n\n\n/**\n * Check if the passed coordinate is contained or on the edge of the extent.\n *\n * @param {Extent} extent Extent.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} The coordinate is contained in the extent.\n * @api\n */\nexport function containsCoordinate(extent, coordinate) {\n return containsXY(extent, coordinate[0], coordinate[1]);\n}\n\n\n/**\n * Check if one extent contains another.\n *\n * An extent is deemed contained if it lies completely within the other extent,\n * including if they share one or more edges.\n *\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {boolean} The second extent is contained by or on the edge of the\n * first.\n * @api\n */\nexport function containsExtent(extent1, extent2) {\n return extent1[0] <= extent2[0] && extent2[2] <= extent1[2] &&\n extent1[1] <= extent2[1] && extent2[3] <= extent1[3];\n}\n\n\n/**\n * Check if the passed coordinate is contained or on the edge of the extent.\n *\n * @param {Extent} extent Extent.\n * @param {number} x X coordinate.\n * @param {number} y Y coordinate.\n * @return {boolean} The x, y values are contained in the extent.\n * @api\n */\nexport function containsXY(extent, x, y) {\n return extent[0] <= x && x <= extent[2] && extent[1] <= y && y <= extent[3];\n}\n\n\n/**\n * Get the relationship between a coordinate and extent.\n * @param {Extent} extent The extent.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate The coordinate.\n * @return {Relationship} The relationship (bitwise compare with\n * import(\"./extent/Relationship.js\").Relationship).\n */\nexport function coordinateRelationship(extent, coordinate) {\n var minX = extent[0];\n var minY = extent[1];\n var maxX = extent[2];\n var maxY = extent[3];\n var x = coordinate[0];\n var y = coordinate[1];\n var relationship = Relationship.UNKNOWN;\n if (x < minX) {\n relationship = relationship | Relationship.LEFT;\n } else if (x > maxX) {\n relationship = relationship | Relationship.RIGHT;\n }\n if (y < minY) {\n relationship = relationship | Relationship.BELOW;\n } else if (y > maxY) {\n relationship = relationship | Relationship.ABOVE;\n }\n if (relationship === Relationship.UNKNOWN) {\n relationship = Relationship.INTERSECTING;\n }\n return relationship;\n}\n\n\n/**\n * Create an empty extent.\n * @return {Extent} Empty extent.\n * @api\n */\nexport function createEmpty() {\n return [Infinity, Infinity, -Infinity, -Infinity];\n}\n\n\n/**\n * Create a new extent or update the provided extent.\n * @param {number} minX Minimum X.\n * @param {number} minY Minimum Y.\n * @param {number} maxX Maximum X.\n * @param {number} maxY Maximum Y.\n * @param {Extent=} opt_extent Destination extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdate(minX, minY, maxX, maxY, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = minX;\n opt_extent[1] = minY;\n opt_extent[2] = maxX;\n opt_extent[3] = maxY;\n return opt_extent;\n } else {\n return [minX, minY, maxX, maxY];\n }\n}\n\n\n/**\n * Create a new empty extent or make the provided one empty.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateEmpty(opt_extent) {\n return createOrUpdate(\n Infinity, Infinity, -Infinity, -Infinity, opt_extent);\n}\n\n\n/**\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromCoordinate(coordinate, opt_extent) {\n var x = coordinate[0];\n var y = coordinate[1];\n return createOrUpdate(x, y, x, y, opt_extent);\n}\n\n\n/**\n * @param {Array} coordinates Coordinates.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromCoordinates(coordinates, opt_extent) {\n var extent = createOrUpdateEmpty(opt_extent);\n return extendCoordinates(extent, coordinates);\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromFlatCoordinates(flatCoordinates, offset, end, stride, opt_extent) {\n var extent = createOrUpdateEmpty(opt_extent);\n return extendFlatCoordinates(extent, flatCoordinates, offset, end, stride);\n}\n\n/**\n * @param {Array>} rings Rings.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function createOrUpdateFromRings(rings, opt_extent) {\n var extent = createOrUpdateEmpty(opt_extent);\n return extendRings(extent, rings);\n}\n\n\n/**\n * Determine if two extents are equivalent.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {boolean} The two extents are equivalent.\n * @api\n */\nexport function equals(extent1, extent2) {\n return extent1[0] == extent2[0] && extent1[2] == extent2[2] &&\n extent1[1] == extent2[1] && extent1[3] == extent2[3];\n}\n\n\n/**\n * Modify an extent to include another extent.\n * @param {Extent} extent1 The extent to be modified.\n * @param {Extent} extent2 The extent that will be included in the first.\n * @return {Extent} A reference to the first (extended) extent.\n * @api\n */\nexport function extend(extent1, extent2) {\n if (extent2[0] < extent1[0]) {\n extent1[0] = extent2[0];\n }\n if (extent2[2] > extent1[2]) {\n extent1[2] = extent2[2];\n }\n if (extent2[1] < extent1[1]) {\n extent1[1] = extent2[1];\n }\n if (extent2[3] > extent1[3]) {\n extent1[3] = extent2[3];\n }\n return extent1;\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n */\nexport function extendCoordinate(extent, coordinate) {\n if (coordinate[0] < extent[0]) {\n extent[0] = coordinate[0];\n }\n if (coordinate[0] > extent[2]) {\n extent[2] = coordinate[0];\n }\n if (coordinate[1] < extent[1]) {\n extent[1] = coordinate[1];\n }\n if (coordinate[1] > extent[3]) {\n extent[3] = coordinate[1];\n }\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {Array} coordinates Coordinates.\n * @return {Extent} Extent.\n */\nexport function extendCoordinates(extent, coordinates) {\n for (var i = 0, ii = coordinates.length; i < ii; ++i) {\n extendCoordinate(extent, coordinates[i]);\n }\n return extent;\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {Extent} Extent.\n */\nexport function extendFlatCoordinates(extent, flatCoordinates, offset, end, stride) {\n for (; offset < end; offset += stride) {\n extendXY(extent, flatCoordinates[offset], flatCoordinates[offset + 1]);\n }\n return extent;\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {Array>} rings Rings.\n * @return {Extent} Extent.\n */\nexport function extendRings(extent, rings) {\n for (var i = 0, ii = rings.length; i < ii; ++i) {\n extendCoordinates(extent, rings[i]);\n }\n return extent;\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {number} x X.\n * @param {number} y Y.\n */\nexport function extendXY(extent, x, y) {\n extent[0] = Math.min(extent[0], x);\n extent[1] = Math.min(extent[1], y);\n extent[2] = Math.max(extent[2], x);\n extent[3] = Math.max(extent[3], y);\n}\n\n\n/**\n * This function calls `callback` for each corner of the extent. If the\n * callback returns a truthy value the function returns that value\n * immediately. Otherwise the function returns `false`.\n * @param {Extent} extent Extent.\n * @param {function(this:T, import(\"./coordinate.js\").Coordinate): S} callback Callback.\n * @param {T=} opt_this Value to use as `this` when executing `callback`.\n * @return {S|boolean} Value.\n * @template S, T\n */\nexport function forEachCorner(extent, callback, opt_this) {\n var val;\n val = callback.call(opt_this, getBottomLeft(extent));\n if (val) {\n return val;\n }\n val = callback.call(opt_this, getBottomRight(extent));\n if (val) {\n return val;\n }\n val = callback.call(opt_this, getTopRight(extent));\n if (val) {\n return val;\n }\n val = callback.call(opt_this, getTopLeft(extent));\n if (val) {\n return val;\n }\n return false;\n}\n\n\n/**\n * Get the size of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Area.\n * @api\n */\nexport function getArea(extent) {\n var area = 0;\n if (!isEmpty(extent)) {\n area = getWidth(extent) * getHeight(extent);\n }\n return area;\n}\n\n\n/**\n * Get the bottom left coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Bottom left coordinate.\n * @api\n */\nexport function getBottomLeft(extent) {\n return [extent[0], extent[1]];\n}\n\n\n/**\n * Get the bottom right coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Bottom right coordinate.\n * @api\n */\nexport function getBottomRight(extent) {\n return [extent[2], extent[1]];\n}\n\n\n/**\n * Get the center coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Center.\n * @api\n */\nexport function getCenter(extent) {\n return [(extent[0] + extent[2]) / 2, (extent[1] + extent[3]) / 2];\n}\n\n\n/**\n * Get a corner coordinate of an extent.\n * @param {Extent} extent Extent.\n * @param {Corner} corner Corner.\n * @return {import(\"./coordinate.js\").Coordinate} Corner coordinate.\n */\nexport function getCorner(extent, corner) {\n var coordinate;\n if (corner === Corner.BOTTOM_LEFT) {\n coordinate = getBottomLeft(extent);\n } else if (corner === Corner.BOTTOM_RIGHT) {\n coordinate = getBottomRight(extent);\n } else if (corner === Corner.TOP_LEFT) {\n coordinate = getTopLeft(extent);\n } else if (corner === Corner.TOP_RIGHT) {\n coordinate = getTopRight(extent);\n } else {\n assert(false, 13); // Invalid corner\n }\n return coordinate;\n}\n\n\n/**\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {number} Enlarged area.\n */\nexport function getEnlargedArea(extent1, extent2) {\n var minX = Math.min(extent1[0], extent2[0]);\n var minY = Math.min(extent1[1], extent2[1]);\n var maxX = Math.max(extent1[2], extent2[2]);\n var maxY = Math.max(extent1[3], extent2[3]);\n return (maxX - minX) * (maxY - minY);\n}\n\n\n/**\n * @param {import(\"./coordinate.js\").Coordinate} center Center.\n * @param {number} resolution Resolution.\n * @param {number} rotation Rotation.\n * @param {import(\"./size.js\").Size} size Size.\n * @param {Extent=} opt_extent Destination extent.\n * @return {Extent} Extent.\n */\nexport function getForViewAndSize(center, resolution, rotation, size, opt_extent) {\n var dx = resolution * size[0] / 2;\n var dy = resolution * size[1] / 2;\n var cosRotation = Math.cos(rotation);\n var sinRotation = Math.sin(rotation);\n var xCos = dx * cosRotation;\n var xSin = dx * sinRotation;\n var yCos = dy * cosRotation;\n var ySin = dy * sinRotation;\n var x = center[0];\n var y = center[1];\n var x0 = x - xCos + ySin;\n var x1 = x - xCos - ySin;\n var x2 = x + xCos - ySin;\n var x3 = x + xCos + ySin;\n var y0 = y - xSin - yCos;\n var y1 = y - xSin + yCos;\n var y2 = y + xSin + yCos;\n var y3 = y + xSin - yCos;\n return createOrUpdate(\n Math.min(x0, x1, x2, x3), Math.min(y0, y1, y2, y3),\n Math.max(x0, x1, x2, x3), Math.max(y0, y1, y2, y3),\n opt_extent);\n}\n\n\n/**\n * Get the height of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Height.\n * @api\n */\nexport function getHeight(extent) {\n return extent[3] - extent[1];\n}\n\n\n/**\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @return {number} Intersection area.\n */\nexport function getIntersectionArea(extent1, extent2) {\n var intersection = getIntersection(extent1, extent2);\n return getArea(intersection);\n}\n\n\n/**\n * Get the intersection of two extents.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent 2.\n * @param {Extent=} opt_extent Optional extent to populate with intersection.\n * @return {Extent} Intersecting extent.\n * @api\n */\nexport function getIntersection(extent1, extent2, opt_extent) {\n var intersection = opt_extent ? opt_extent : createEmpty();\n if (intersects(extent1, extent2)) {\n if (extent1[0] > extent2[0]) {\n intersection[0] = extent1[0];\n } else {\n intersection[0] = extent2[0];\n }\n if (extent1[1] > extent2[1]) {\n intersection[1] = extent1[1];\n } else {\n intersection[1] = extent2[1];\n }\n if (extent1[2] < extent2[2]) {\n intersection[2] = extent1[2];\n } else {\n intersection[2] = extent2[2];\n }\n if (extent1[3] < extent2[3]) {\n intersection[3] = extent1[3];\n } else {\n intersection[3] = extent2[3];\n }\n } else {\n createOrUpdateEmpty(intersection);\n }\n return intersection;\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @return {number} Margin.\n */\nexport function getMargin(extent) {\n return getWidth(extent) + getHeight(extent);\n}\n\n\n/**\n * Get the size (width, height) of an extent.\n * @param {Extent} extent The extent.\n * @return {import(\"./size.js\").Size} The extent size.\n * @api\n */\nexport function getSize(extent) {\n return [extent[2] - extent[0], extent[3] - extent[1]];\n}\n\n\n/**\n * Get the top left coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Top left coordinate.\n * @api\n */\nexport function getTopLeft(extent) {\n return [extent[0], extent[3]];\n}\n\n\n/**\n * Get the top right coordinate of an extent.\n * @param {Extent} extent Extent.\n * @return {import(\"./coordinate.js\").Coordinate} Top right coordinate.\n * @api\n */\nexport function getTopRight(extent) {\n return [extent[2], extent[3]];\n}\n\n\n/**\n * Get the width of an extent.\n * @param {Extent} extent Extent.\n * @return {number} Width.\n * @api\n */\nexport function getWidth(extent) {\n return extent[2] - extent[0];\n}\n\n\n/**\n * Determine if one extent intersects another.\n * @param {Extent} extent1 Extent 1.\n * @param {Extent} extent2 Extent.\n * @return {boolean} The two extents intersect.\n * @api\n */\nexport function intersects(extent1, extent2) {\n return extent1[0] <= extent2[2] &&\n extent1[2] >= extent2[0] &&\n extent1[1] <= extent2[3] &&\n extent1[3] >= extent2[1];\n}\n\n\n/**\n * Determine if an extent is empty.\n * @param {Extent} extent Extent.\n * @return {boolean} Is empty.\n * @api\n */\nexport function isEmpty(extent) {\n return extent[2] < extent[0] || extent[3] < extent[1];\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {Extent=} opt_extent Extent.\n * @return {Extent} Extent.\n */\nexport function returnOrUpdate(extent, opt_extent) {\n if (opt_extent) {\n opt_extent[0] = extent[0];\n opt_extent[1] = extent[1];\n opt_extent[2] = extent[2];\n opt_extent[3] = extent[3];\n return opt_extent;\n } else {\n return extent;\n }\n}\n\n\n/**\n * @param {Extent} extent Extent.\n * @param {number} value Value.\n */\nexport function scaleFromCenter(extent, value) {\n var deltaX = ((extent[2] - extent[0]) / 2) * (value - 1);\n var deltaY = ((extent[3] - extent[1]) / 2) * (value - 1);\n extent[0] -= deltaX;\n extent[2] += deltaX;\n extent[1] -= deltaY;\n extent[3] += deltaY;\n}\n\n\n/**\n * Determine if the segment between two coordinates intersects (crosses,\n * touches, or is contained by) the provided extent.\n * @param {Extent} extent The extent.\n * @param {import(\"./coordinate.js\").Coordinate} start Segment start coordinate.\n * @param {import(\"./coordinate.js\").Coordinate} end Segment end coordinate.\n * @return {boolean} The segment intersects the extent.\n */\nexport function intersectsSegment(extent, start, end) {\n var intersects = false;\n var startRel = coordinateRelationship(extent, start);\n var endRel = coordinateRelationship(extent, end);\n if (startRel === Relationship.INTERSECTING ||\n endRel === Relationship.INTERSECTING) {\n intersects = true;\n } else {\n var minX = extent[0];\n var minY = extent[1];\n var maxX = extent[2];\n var maxY = extent[3];\n var startX = start[0];\n var startY = start[1];\n var endX = end[0];\n var endY = end[1];\n var slope = (endY - startY) / (endX - startX);\n var x, y;\n if (!!(endRel & Relationship.ABOVE) &&\n !(startRel & Relationship.ABOVE)) {\n // potentially intersects top\n x = endX - ((endY - maxY) / slope);\n intersects = x >= minX && x <= maxX;\n }\n if (!intersects && !!(endRel & Relationship.RIGHT) &&\n !(startRel & Relationship.RIGHT)) {\n // potentially intersects right\n y = endY - ((endX - maxX) * slope);\n intersects = y >= minY && y <= maxY;\n }\n if (!intersects && !!(endRel & Relationship.BELOW) &&\n !(startRel & Relationship.BELOW)) {\n // potentially intersects bottom\n x = endX - ((endY - minY) / slope);\n intersects = x >= minX && x <= maxX;\n }\n if (!intersects && !!(endRel & Relationship.LEFT) &&\n !(startRel & Relationship.LEFT)) {\n // potentially intersects left\n y = endY - ((endX - minX) * slope);\n intersects = y >= minY && y <= maxY;\n }\n\n }\n return intersects;\n}\n\n\n/**\n * Apply a transform function to the extent.\n * @param {Extent} extent Extent.\n * @param {import(\"./proj.js\").TransformFunction} transformFn Transform function.\n * Called with `[minX, minY, maxX, maxY]` extent coordinates.\n * @param {Extent=} opt_extent Destination extent.\n * @return {Extent} Extent.\n * @api\n */\nexport function applyTransform(extent, transformFn, opt_extent) {\n var coordinates = [\n extent[0], extent[1],\n extent[0], extent[3],\n extent[2], extent[1],\n extent[2], extent[3]\n ];\n transformFn(coordinates, coordinates, 2);\n var xs = [coordinates[0], coordinates[2], coordinates[4], coordinates[6]];\n var ys = [coordinates[1], coordinates[3], coordinates[5], coordinates[7]];\n return _boundingExtentXYs(xs, ys, opt_extent);\n}\n\n//# sourceMappingURL=extent.js.map","/**\n * @module ol/geom/GeometryLayout\n */\n\n/**\n * The coordinate layout for geometries, indicating whether a 3rd or 4th z ('Z')\n * or measure ('M') coordinate is available. Supported values are `'XY'`,\n * `'XYZ'`, `'XYM'`, `'XYZM'`.\n * @enum {string}\n */\nexport default {\n XY: 'XY',\n XYZ: 'XYZ',\n XYM: 'XYM',\n XYZM: 'XYZM'\n};\n\n//# sourceMappingURL=GeometryLayout.js.map","/**\n * @module ol/geom/GeometryType\n */\n\n/**\n * The geometry type. One of `'Point'`, `'LineString'`, `'LinearRing'`,\n * `'Polygon'`, `'MultiPoint'`, `'MultiLineString'`, `'MultiPolygon'`,\n * `'GeometryCollection'`, `'Circle'`.\n * @enum {string}\n */\nexport default {\n POINT: 'Point',\n LINE_STRING: 'LineString',\n LINEAR_RING: 'LinearRing',\n POLYGON: 'Polygon',\n MULTI_POINT: 'MultiPoint',\n MULTI_LINE_STRING: 'MultiLineString',\n MULTI_POLYGON: 'MultiPolygon',\n GEOMETRY_COLLECTION: 'GeometryCollection',\n CIRCLE: 'Circle'\n};\n\n//# sourceMappingURL=GeometryType.js.map","/**\n * @module ol/geom/flat/transform\n */\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../transform.js\").Transform} transform Transform.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function transform2D(flatCoordinates, offset, end, stride, transform, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n var x = flatCoordinates[j];\n var y = flatCoordinates[j + 1];\n dest[i++] = transform[0] * x + transform[2] * y + transform[4];\n dest[i++] = transform[1] * x + transform[3] * y + transform[5];\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} angle Angle.\n * @param {Array} anchor Rotation anchor point.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function rotate(flatCoordinates, offset, end, stride, angle, anchor, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var cos = Math.cos(angle);\n var sin = Math.sin(angle);\n var anchorX = anchor[0];\n var anchorY = anchor[1];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n var deltaX = flatCoordinates[j] - anchorX;\n var deltaY = flatCoordinates[j + 1] - anchorY;\n dest[i++] = anchorX + deltaX * cos - deltaY * sin;\n dest[i++] = anchorY + deltaX * sin + deltaY * cos;\n for (var k = j + 2; k < j + stride; ++k) {\n dest[i++] = flatCoordinates[k];\n }\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n\n/**\n * Scale the coordinates.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} sx Scale factor in the x-direction.\n * @param {number} sy Scale factor in the y-direction.\n * @param {Array} anchor Scale anchor point.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function scale(flatCoordinates, offset, end, stride, sx, sy, anchor, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var anchorX = anchor[0];\n var anchorY = anchor[1];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n var deltaX = flatCoordinates[j] - anchorX;\n var deltaY = flatCoordinates[j + 1] - anchorY;\n dest[i++] = anchorX + sx * deltaX;\n dest[i++] = anchorY + sy * deltaY;\n for (var k = j + 2; k < j + stride; ++k) {\n dest[i++] = flatCoordinates[k];\n }\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} deltaX Delta X.\n * @param {number} deltaY Delta Y.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed coordinates.\n */\nexport function translate(flatCoordinates, offset, end, stride, deltaX, deltaY, opt_dest) {\n var dest = opt_dest ? opt_dest : [];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n dest[i++] = flatCoordinates[j] + deltaX;\n dest[i++] = flatCoordinates[j + 1] + deltaY;\n for (var k = j + 2; k < j + stride; ++k) {\n dest[i++] = flatCoordinates[k];\n }\n }\n if (opt_dest && dest.length != i) {\n dest.length = i;\n }\n return dest;\n}\n\n//# sourceMappingURL=transform.js.map","/**\n * @module ol/math\n */\nimport {assert} from './asserts.js';\n\n/**\n * Takes a number and clamps it to within the provided bounds.\n * @param {number} value The input number.\n * @param {number} min The minimum value to return.\n * @param {number} max The maximum value to return.\n * @return {number} The input number if it is within bounds, or the nearest\n * number within the bounds.\n */\nexport function clamp(value, min, max) {\n return Math.min(Math.max(value, min), max);\n}\n\n\n/**\n * Return the hyperbolic cosine of a given number. The method will use the\n * native `Math.cosh` function if it is available, otherwise the hyperbolic\n * cosine will be calculated via the reference implementation of the Mozilla\n * developer network.\n *\n * @param {number} x X.\n * @return {number} Hyperbolic cosine of x.\n */\nexport var cosh = (function() {\n // Wrapped in a iife, to save the overhead of checking for the native\n // implementation on every invocation.\n var cosh;\n if ('cosh' in Math) {\n // The environment supports the native Math.cosh function, use it…\n cosh = Math.cosh;\n } else {\n // … else, use the reference implementation of MDN:\n cosh = function(x) {\n var y = /** @type {Math} */ (Math).exp(x);\n return (y + 1 / y) / 2;\n };\n }\n return cosh;\n}());\n\n\n/**\n * @param {number} x X.\n * @return {number} The smallest power of two greater than or equal to x.\n */\nexport function roundUpToPowerOfTwo(x) {\n assert(0 < x, 29); // `x` must be greater than `0`\n return Math.pow(2, Math.ceil(Math.log(x) / Math.LN2));\n}\n\n\n/**\n * Returns the square of the closest distance between the point (x, y) and the\n * line segment (x1, y1) to (x2, y2).\n * @param {number} x X.\n * @param {number} y Y.\n * @param {number} x1 X1.\n * @param {number} y1 Y1.\n * @param {number} x2 X2.\n * @param {number} y2 Y2.\n * @return {number} Squared distance.\n */\nexport function squaredSegmentDistance(x, y, x1, y1, x2, y2) {\n var dx = x2 - x1;\n var dy = y2 - y1;\n if (dx !== 0 || dy !== 0) {\n var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);\n if (t > 1) {\n x1 = x2;\n y1 = y2;\n } else if (t > 0) {\n x1 += dx * t;\n y1 += dy * t;\n }\n }\n return squaredDistance(x, y, x1, y1);\n}\n\n\n/**\n * Returns the square of the distance between the points (x1, y1) and (x2, y2).\n * @param {number} x1 X1.\n * @param {number} y1 Y1.\n * @param {number} x2 X2.\n * @param {number} y2 Y2.\n * @return {number} Squared distance.\n */\nexport function squaredDistance(x1, y1, x2, y2) {\n var dx = x2 - x1;\n var dy = y2 - y1;\n return dx * dx + dy * dy;\n}\n\n\n/**\n * Solves system of linear equations using Gaussian elimination method.\n *\n * @param {Array>} mat Augmented matrix (n x n + 1 column)\n * in row-major order.\n * @return {Array} The resulting vector.\n */\nexport function solveLinearSystem(mat) {\n var n = mat.length;\n\n for (var i = 0; i < n; i++) {\n // Find max in the i-th column (ignoring i - 1 first rows)\n var maxRow = i;\n var maxEl = Math.abs(mat[i][i]);\n for (var r = i + 1; r < n; r++) {\n var absValue = Math.abs(mat[r][i]);\n if (absValue > maxEl) {\n maxEl = absValue;\n maxRow = r;\n }\n }\n\n if (maxEl === 0) {\n return null; // matrix is singular\n }\n\n // Swap max row with i-th (current) row\n var tmp = mat[maxRow];\n mat[maxRow] = mat[i];\n mat[i] = tmp;\n\n // Subtract the i-th row to make all the remaining rows 0 in the i-th column\n for (var j = i + 1; j < n; j++) {\n var coef = -mat[j][i] / mat[i][i];\n for (var k = i; k < n + 1; k++) {\n if (i == k) {\n mat[j][k] = 0;\n } else {\n mat[j][k] += coef * mat[i][k];\n }\n }\n }\n }\n\n // Solve Ax=b for upper triangular matrix A (mat)\n var x = new Array(n);\n for (var l = n - 1; l >= 0; l--) {\n x[l] = mat[l][n] / mat[l][l];\n for (var m = l - 1; m >= 0; m--) {\n mat[m][n] -= mat[m][l] * x[l];\n }\n }\n return x;\n}\n\n\n/**\n * Converts radians to to degrees.\n *\n * @param {number} angleInRadians Angle in radians.\n * @return {number} Angle in degrees.\n */\nexport function toDegrees(angleInRadians) {\n return angleInRadians * 180 / Math.PI;\n}\n\n\n/**\n * Converts degrees to radians.\n *\n * @param {number} angleInDegrees Angle in degrees.\n * @return {number} Angle in radians.\n */\nexport function toRadians(angleInDegrees) {\n return angleInDegrees * Math.PI / 180;\n}\n\n/**\n * Returns the modulo of a / b, depending on the sign of b.\n *\n * @param {number} a Dividend.\n * @param {number} b Divisor.\n * @return {number} Modulo.\n */\nexport function modulo(a, b) {\n var r = a % b;\n return r * b < 0 ? r + b : r;\n}\n\n/**\n * Calculates the linearly interpolated value of x between a and b.\n *\n * @param {number} a Number\n * @param {number} b Number\n * @param {number} x Value to be interpolated.\n * @return {number} Interpolated value.\n */\nexport function lerp(a, b, x) {\n return a + x * (b - a);\n}\n\n//# sourceMappingURL=math.js.map","/**\n * @license\n * Latitude/longitude spherical geodesy formulae taken from\n * http://www.movable-type.co.uk/scripts/latlong.html\n * Licensed under CC-BY-3.0.\n */\n\n/**\n * @module ol/sphere\n */\nimport {toRadians, toDegrees} from './math.js';\nimport GeometryType from './geom/GeometryType.js';\n\n\n/**\n * Object literal with options for the {@link getLength} or {@link getArea}\n * functions.\n * @typedef {Object} SphereMetricOptions\n * @property {import(\"./proj.js\").ProjectionLike} [projection='EPSG:3857']\n * Projection of the geometry. By default, the geometry is assumed to be in\n * Web Mercator.\n * @property {number} [radius=6371008.8] Sphere radius. By default, the radius of the\n * earth is used (Clarke 1866 Authalic Sphere).\n */\n\n\n/**\n * The mean Earth radius (1/3 * (2a + b)) for the WGS84 ellipsoid.\n * https://en.wikipedia.org/wiki/Earth_radius#Mean_radius\n * @type {number}\n */\nexport var DEFAULT_RADIUS = 6371008.8;\n\n\n/**\n * Get the great circle distance (in meters) between two geographic coordinates.\n * @param {Array} c1 Starting coordinate.\n * @param {Array} c2 Ending coordinate.\n * @param {number=} opt_radius The sphere radius to use. Defaults to the Earth's\n * mean radius using the WGS84 ellipsoid.\n * @return {number} The great circle distance between the points (in meters).\n * @api\n */\nexport function getDistance(c1, c2, opt_radius) {\n var radius = opt_radius || DEFAULT_RADIUS;\n var lat1 = toRadians(c1[1]);\n var lat2 = toRadians(c2[1]);\n var deltaLatBy2 = (lat2 - lat1) / 2;\n var deltaLonBy2 = toRadians(c2[0] - c1[0]) / 2;\n var a = Math.sin(deltaLatBy2) * Math.sin(deltaLatBy2) +\n Math.sin(deltaLonBy2) * Math.sin(deltaLonBy2) *\n Math.cos(lat1) * Math.cos(lat2);\n return 2 * radius * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));\n}\n\n\n/**\n * Get the cumulative great circle length of linestring coordinates (geographic).\n * @param {Array} coordinates Linestring coordinates.\n * @param {number} radius The sphere radius to use.\n * @return {number} The length (in meters).\n */\nfunction getLengthInternal(coordinates, radius) {\n var length = 0;\n for (var i = 0, ii = coordinates.length; i < ii - 1; ++i) {\n length += getDistance(coordinates[i], coordinates[i + 1], radius);\n }\n return length;\n}\n\n\n/**\n * Get the spherical length of a geometry. This length is the sum of the\n * great circle distances between coordinates. For polygons, the length is\n * the sum of all rings. For points, the length is zero. For multi-part\n * geometries, the length is the sum of the length of each part.\n * @param {import(\"./geom/Geometry.js\").default} geometry A geometry.\n * @param {SphereMetricOptions=} opt_options Options for the\n * length calculation. By default, geometries are assumed to be in 'EPSG:3857'.\n * You can change this by providing a `projection` option.\n * @return {number} The spherical length (in meters).\n * @api\n */\nexport function getLength(geometry, opt_options) {\n var options = opt_options || {};\n var radius = options.radius || DEFAULT_RADIUS;\n var projection = options.projection || 'EPSG:3857';\n var type = geometry.getType();\n if (type !== GeometryType.GEOMETRY_COLLECTION) {\n geometry = geometry.clone().transform(projection, 'EPSG:4326');\n }\n var length = 0;\n var coordinates, coords, i, ii, j, jj;\n switch (type) {\n case GeometryType.POINT:\n case GeometryType.MULTI_POINT: {\n break;\n }\n case GeometryType.LINE_STRING:\n case GeometryType.LINEAR_RING: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n length = getLengthInternal(coordinates, radius);\n break;\n }\n case GeometryType.MULTI_LINE_STRING:\n case GeometryType.POLYGON: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n for (i = 0, ii = coordinates.length; i < ii; ++i) {\n length += getLengthInternal(coordinates[i], radius);\n }\n break;\n }\n case GeometryType.MULTI_POLYGON: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n for (i = 0, ii = coordinates.length; i < ii; ++i) {\n coords = coordinates[i];\n for (j = 0, jj = coords.length; j < jj; ++j) {\n length += getLengthInternal(coords[j], radius);\n }\n }\n break;\n }\n case GeometryType.GEOMETRY_COLLECTION: {\n var geometries = /** @type {import(\"./geom/GeometryCollection.js\").default} */ (geometry).getGeometries();\n for (i = 0, ii = geometries.length; i < ii; ++i) {\n length += getLength(geometries[i], opt_options);\n }\n break;\n }\n default: {\n throw new Error('Unsupported geometry type: ' + type);\n }\n }\n return length;\n}\n\n\n/**\n * Returns the spherical area for a list of coordinates.\n *\n * [Reference](https://trs-new.jpl.nasa.gov/handle/2014/40409)\n * Robert. G. Chamberlain and William H. Duquette, \"Some Algorithms for\n * Polygons on a Sphere\", JPL Publication 07-03, Jet Propulsion\n * Laboratory, Pasadena, CA, June 2007\n *\n * @param {Array} coordinates List of coordinates of a linear\n * ring. If the ring is oriented clockwise, the area will be positive,\n * otherwise it will be negative.\n * @param {number} radius The sphere radius.\n * @return {number} Area (in square meters).\n */\nfunction getAreaInternal(coordinates, radius) {\n var area = 0;\n var len = coordinates.length;\n var x1 = coordinates[len - 1][0];\n var y1 = coordinates[len - 1][1];\n for (var i = 0; i < len; i++) {\n var x2 = coordinates[i][0];\n var y2 = coordinates[i][1];\n area += toRadians(x2 - x1) *\n (2 + Math.sin(toRadians(y1)) +\n Math.sin(toRadians(y2)));\n x1 = x2;\n y1 = y2;\n }\n return area * radius * radius / 2.0;\n}\n\n\n/**\n * Get the spherical area of a geometry. This is the area (in meters) assuming\n * that polygon edges are segments of great circles on a sphere.\n * @param {import(\"./geom/Geometry.js\").default} geometry A geometry.\n * @param {SphereMetricOptions=} opt_options Options for the area\n * calculation. By default, geometries are assumed to be in 'EPSG:3857'.\n * You can change this by providing a `projection` option.\n * @return {number} The spherical area (in square meters).\n * @api\n */\nexport function getArea(geometry, opt_options) {\n var options = opt_options || {};\n var radius = options.radius || DEFAULT_RADIUS;\n var projection = options.projection || 'EPSG:3857';\n var type = geometry.getType();\n if (type !== GeometryType.GEOMETRY_COLLECTION) {\n geometry = geometry.clone().transform(projection, 'EPSG:4326');\n }\n var area = 0;\n var coordinates, coords, i, ii, j, jj;\n switch (type) {\n case GeometryType.POINT:\n case GeometryType.MULTI_POINT:\n case GeometryType.LINE_STRING:\n case GeometryType.MULTI_LINE_STRING:\n case GeometryType.LINEAR_RING: {\n break;\n }\n case GeometryType.POLYGON: {\n coordinates = /** @type {import(\"./geom/Polygon.js\").default} */ (geometry).getCoordinates();\n area = Math.abs(getAreaInternal(coordinates[0], radius));\n for (i = 1, ii = coordinates.length; i < ii; ++i) {\n area -= Math.abs(getAreaInternal(coordinates[i], radius));\n }\n break;\n }\n case GeometryType.MULTI_POLYGON: {\n coordinates = /** @type {import(\"./geom/SimpleGeometry.js\").default} */ (geometry).getCoordinates();\n for (i = 0, ii = coordinates.length; i < ii; ++i) {\n coords = coordinates[i];\n area += Math.abs(getAreaInternal(coords[0], radius));\n for (j = 1, jj = coords.length; j < jj; ++j) {\n area -= Math.abs(getAreaInternal(coords[j], radius));\n }\n }\n break;\n }\n case GeometryType.GEOMETRY_COLLECTION: {\n var geometries = /** @type {import(\"./geom/GeometryCollection.js\").default} */ (geometry).getGeometries();\n for (i = 0, ii = geometries.length; i < ii; ++i) {\n area += getArea(geometries[i], opt_options);\n }\n break;\n }\n default: {\n throw new Error('Unsupported geometry type: ' + type);\n }\n }\n return area;\n}\n\n\n/**\n * Returns the coordinate at the given distance and bearing from `c1`.\n *\n * @param {import(\"./coordinate.js\").Coordinate} c1 The origin point (`[lon, lat]` in degrees).\n * @param {number} distance The great-circle distance between the origin\n * point and the target point.\n * @param {number} bearing The bearing (in radians).\n * @param {number=} opt_radius The sphere radius to use. Defaults to the Earth's\n * mean radius using the WGS84 ellipsoid.\n * @return {import(\"./coordinate.js\").Coordinate} The target point.\n */\nexport function offset(c1, distance, bearing, opt_radius) {\n var radius = opt_radius || DEFAULT_RADIUS;\n var lat1 = toRadians(c1[1]);\n var lon1 = toRadians(c1[0]);\n var dByR = distance / radius;\n var lat = Math.asin(\n Math.sin(lat1) * Math.cos(dByR) +\n Math.cos(lat1) * Math.sin(dByR) * Math.cos(bearing));\n var lon = lon1 + Math.atan2(\n Math.sin(bearing) * Math.sin(dByR) * Math.cos(lat1),\n Math.cos(dByR) - Math.sin(lat1) * Math.sin(lat));\n return [toDegrees(lon), toDegrees(lat)];\n}\n\n//# sourceMappingURL=sphere.js.map","/**\n * @module ol/proj/Units\n */\n\n/**\n * Projection units: `'degrees'`, `'ft'`, `'m'`, `'pixels'`, `'tile-pixels'` or\n * `'us-ft'`.\n * @enum {string}\n */\nvar Units = {\n DEGREES: 'degrees',\n FEET: 'ft',\n METERS: 'm',\n PIXELS: 'pixels',\n TILE_PIXELS: 'tile-pixels',\n USFEET: 'us-ft'\n};\n\n\n/**\n * Meters per unit lookup table.\n * @const\n * @type {Object}\n * @api\n */\nexport var METERS_PER_UNIT = {};\n// use the radius of the Normal sphere\nMETERS_PER_UNIT[Units.DEGREES] = 2 * Math.PI * 6370997 / 360;\nMETERS_PER_UNIT[Units.FEET] = 0.3048;\nMETERS_PER_UNIT[Units.METERS] = 1;\nMETERS_PER_UNIT[Units.USFEET] = 1200 / 3937;\n\nexport default Units;\n\n//# sourceMappingURL=Units.js.map","/**\n * @module ol/proj/Projection\n */\nimport {METERS_PER_UNIT} from './Units.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {string} code The SRS identifier code, e.g. `EPSG:4326`.\n * @property {import(\"./Units.js\").default|string} [units] Units. Required unless a\n * proj4 projection is defined for `code`.\n * @property {import(\"../extent.js\").Extent} [extent] The validity extent for the SRS.\n * @property {string} [axisOrientation='enu'] The axis orientation as specified in Proj4.\n * @property {boolean} [global=false] Whether the projection is valid for the whole globe.\n * @property {number} [metersPerUnit] The meters per unit for the SRS.\n * If not provided, the `units` are used to get the meters per unit from the {@link module:ol/proj/Units~METERS_PER_UNIT}\n * lookup table.\n * @property {import(\"../extent.js\").Extent} [worldExtent] The world extent for the SRS.\n * @property {function(number, import(\"../coordinate.js\").Coordinate):number} [getPointResolution]\n * Function to determine resolution at a point. The function is called with a\n * `{number}` view resolution and an `{import(\"../coordinate.js\").Coordinate}` as arguments, and returns\n * the `{number}` resolution at the passed coordinate. If this is `undefined`,\n * the default {@link module:ol/proj#getPointResolution} function will be used.\n */\n\n\n/**\n * @classdesc\n * Projection definition class. One of these is created for each projection\n * supported in the application and stored in the {@link module:ol/proj} namespace.\n * You can use these in applications, but this is not required, as API params\n * and options use {@link module:ol/proj~ProjectionLike} which means the simple string\n * code will suffice.\n *\n * You can use {@link module:ol/proj~get} to retrieve the object for a particular\n * projection.\n *\n * The library includes definitions for `EPSG:4326` and `EPSG:3857`, together\n * with the following aliases:\n * * `EPSG:4326`: CRS:84, urn:ogc:def:crs:EPSG:6.6:4326,\n * urn:ogc:def:crs:OGC:1.3:CRS84, urn:ogc:def:crs:OGC:2:84,\n * http://www.opengis.net/gml/srs/epsg.xml#4326,\n * urn:x-ogc:def:crs:EPSG:4326\n * * `EPSG:3857`: EPSG:102100, EPSG:102113, EPSG:900913,\n * urn:ogc:def:crs:EPSG:6.18:3:3857,\n * http://www.opengis.net/gml/srs/epsg.xml#3857\n *\n * If you use [proj4js](https://github.com/proj4js/proj4js), aliases can\n * be added using `proj4.defs()`. After all required projection definitions are\n * added, call the {@link module:ol/proj/proj4~register} function.\n *\n * @api\n */\nvar Projection = function Projection(options) {\n /**\n * @private\n * @type {string}\n */\n this.code_ = options.code;\n\n /**\n * Units of projected coordinates. When set to `TILE_PIXELS`, a\n * `this.extent_` and `this.worldExtent_` must be configured properly for each\n * tile.\n * @private\n * @type {import(\"./Units.js\").default}\n */\n this.units_ = /** @type {import(\"./Units.js\").default} */ (options.units);\n\n /**\n * Validity extent of the projection in projected coordinates. For projections\n * with `TILE_PIXELS` units, this is the extent of the tile in\n * tile pixel space.\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.extent_ = options.extent !== undefined ? options.extent : null;\n\n /**\n * Extent of the world in EPSG:4326. For projections with\n * `TILE_PIXELS` units, this is the extent of the tile in\n * projected coordinate space.\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.worldExtent_ = options.worldExtent !== undefined ?\n options.worldExtent : null;\n\n /**\n * @private\n * @type {string}\n */\n this.axisOrientation_ = options.axisOrientation !== undefined ?\n options.axisOrientation : 'enu';\n\n /**\n * @private\n * @type {boolean}\n */\n this.global_ = options.global !== undefined ? options.global : false;\n\n /**\n * @private\n * @type {boolean}\n */\n this.canWrapX_ = !!(this.global_ && this.extent_);\n\n /**\n * @private\n * @type {function(number, import(\"../coordinate.js\").Coordinate):number|undefined}\n */\n this.getPointResolutionFunc_ = options.getPointResolution;\n\n /**\n * @private\n * @type {import(\"../tilegrid/TileGrid.js\").default}\n */\n this.defaultTileGrid_ = null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.metersPerUnit_ = options.metersPerUnit;\n};\n\n/**\n * @return {boolean} The projection is suitable for wrapping the x-axis\n */\nProjection.prototype.canWrapX = function canWrapX () {\n return this.canWrapX_;\n};\n\n/**\n * Get the code for this projection, e.g. 'EPSG:4326'.\n * @return {string} Code.\n * @api\n */\nProjection.prototype.getCode = function getCode () {\n return this.code_;\n};\n\n/**\n * Get the validity extent for this projection.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\nProjection.prototype.getExtent = function getExtent () {\n return this.extent_;\n};\n\n/**\n * Get the units of this projection.\n * @return {import(\"./Units.js\").default} Units.\n * @api\n */\nProjection.prototype.getUnits = function getUnits () {\n return this.units_;\n};\n\n/**\n * Get the amount of meters per unit of this projection.If the projection is\n * not configured with `metersPerUnit` or a units identifier, the return is\n * `undefined`.\n * @return {number|undefined} Meters.\n * @api\n */\nProjection.prototype.getMetersPerUnit = function getMetersPerUnit () {\n return this.metersPerUnit_ || METERS_PER_UNIT[this.units_];\n};\n\n/**\n * Get the world extent for this projection.\n * @return {import(\"../extent.js\").Extent} Extent.\n * @api\n */\nProjection.prototype.getWorldExtent = function getWorldExtent () {\n return this.worldExtent_;\n};\n\n/**\n * Get the axis orientation of this projection.\n * Example values are:\n * enu - the default easting, northing, elevation.\n * neu - northing, easting, up - useful for \"lat/long\" geographic coordinates,\n * or south orientated transverse mercator.\n * wnu - westing, northing, up - some planetary coordinate systems have\n * \"west positive\" coordinate systems\n * @return {string} Axis orientation.\n * @api\n */\nProjection.prototype.getAxisOrientation = function getAxisOrientation () {\n return this.axisOrientation_;\n};\n\n/**\n * Is this projection a global projection which spans the whole world?\n * @return {boolean} Whether the projection is global.\n * @api\n */\nProjection.prototype.isGlobal = function isGlobal () {\n return this.global_;\n};\n\n/**\n * Set if the projection is a global projection which spans the whole world\n * @param {boolean} global Whether the projection is global.\n * @api\n */\nProjection.prototype.setGlobal = function setGlobal (global) {\n this.global_ = global;\n this.canWrapX_ = !!(global && this.extent_);\n};\n\n/**\n * @return {import(\"../tilegrid/TileGrid.js\").default} The default tile grid.\n */\nProjection.prototype.getDefaultTileGrid = function getDefaultTileGrid () {\n return this.defaultTileGrid_;\n};\n\n/**\n * @param {import(\"../tilegrid/TileGrid.js\").default} tileGrid The default tile grid.\n */\nProjection.prototype.setDefaultTileGrid = function setDefaultTileGrid (tileGrid) {\n this.defaultTileGrid_ = tileGrid;\n};\n\n/**\n * Set the validity extent for this projection.\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @api\n */\nProjection.prototype.setExtent = function setExtent (extent) {\n this.extent_ = extent;\n this.canWrapX_ = !!(this.global_ && extent);\n};\n\n/**\n * Set the world extent for this projection.\n * @param {import(\"../extent.js\").Extent} worldExtent World extent\n * [minlon, minlat, maxlon, maxlat].\n * @api\n */\nProjection.prototype.setWorldExtent = function setWorldExtent (worldExtent) {\n this.worldExtent_ = worldExtent;\n};\n\n/**\n * Set the getPointResolution function (see {@link module:ol/proj~getPointResolution}\n * for this projection.\n * @param {function(number, import(\"../coordinate.js\").Coordinate):number} func Function\n * @api\n */\nProjection.prototype.setGetPointResolution = function setGetPointResolution (func) {\n this.getPointResolutionFunc_ = func;\n};\n\n/**\n * Get the custom point resolution function for this projection (if set).\n * @return {function(number, import(\"../coordinate.js\").Coordinate):number|undefined} The custom point\n * resolution function (if set).\n */\nProjection.prototype.getPointResolutionFunc = function getPointResolutionFunc () {\n return this.getPointResolutionFunc_;\n};\n\nexport default Projection;\n\n//# sourceMappingURL=Projection.js.map","/**\n * @module ol/proj/epsg3857\n */\nimport {cosh} from '../math.js';\nimport Projection from './Projection.js';\nimport Units from './Units.js';\n\n\n/**\n * Radius of WGS84 sphere\n *\n * @const\n * @type {number}\n */\nexport var RADIUS = 6378137;\n\n\n/**\n * @const\n * @type {number}\n */\nexport var HALF_SIZE = Math.PI * RADIUS;\n\n\n/**\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport var EXTENT = [\n -HALF_SIZE, -HALF_SIZE,\n HALF_SIZE, HALF_SIZE\n];\n\n\n/**\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport var WORLD_EXTENT = [-180, -85, 180, 85];\n\n\n/**\n * @classdesc\n * Projection object for web/spherical Mercator (EPSG:3857).\n */\nvar EPSG3857Projection = /*@__PURE__*/(function (Projection) {\n function EPSG3857Projection(code) {\n Projection.call(this, {\n code: code,\n units: Units.METERS,\n extent: EXTENT,\n global: true,\n worldExtent: WORLD_EXTENT,\n getPointResolution: function(resolution, point) {\n return resolution / cosh(point[1] / RADIUS);\n }\n });\n\n }\n\n if ( Projection ) EPSG3857Projection.__proto__ = Projection;\n EPSG3857Projection.prototype = Object.create( Projection && Projection.prototype );\n EPSG3857Projection.prototype.constructor = EPSG3857Projection;\n\n return EPSG3857Projection;\n}(Projection));\n\n\n/**\n * Projections equal to EPSG:3857.\n *\n * @const\n * @type {Array}\n */\nexport var PROJECTIONS = [\n new EPSG3857Projection('EPSG:3857'),\n new EPSG3857Projection('EPSG:102100'),\n new EPSG3857Projection('EPSG:102113'),\n new EPSG3857Projection('EPSG:900913'),\n new EPSG3857Projection('urn:ogc:def:crs:EPSG:6.18:3:3857'),\n new EPSG3857Projection('urn:ogc:def:crs:EPSG::3857'),\n new EPSG3857Projection('http://www.opengis.net/gml/srs/epsg.xml#3857')\n];\n\n\n/**\n * Transformation from EPSG:4326 to EPSG:3857.\n *\n * @param {Array} input Input array of coordinate values.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension (default is `2`).\n * @return {Array} Output array of coordinate values.\n */\nexport function fromEPSG4326(input, opt_output, opt_dimension) {\n var length = input.length;\n var dimension = opt_dimension > 1 ? opt_dimension : 2;\n var output = opt_output;\n if (output === undefined) {\n if (dimension > 2) {\n // preserve values beyond second dimension\n output = input.slice();\n } else {\n output = new Array(length);\n }\n }\n var halfSize = HALF_SIZE;\n for (var i = 0; i < length; i += dimension) {\n output[i] = halfSize * input[i] / 180;\n var y = RADIUS *\n Math.log(Math.tan(Math.PI * (input[i + 1] + 90) / 360));\n if (y > halfSize) {\n y = halfSize;\n } else if (y < -halfSize) {\n y = -halfSize;\n }\n output[i + 1] = y;\n }\n return output;\n}\n\n\n/**\n * Transformation from EPSG:3857 to EPSG:4326.\n *\n * @param {Array} input Input array of coordinate values.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension (default is `2`).\n * @return {Array} Output array of coordinate values.\n */\nexport function toEPSG4326(input, opt_output, opt_dimension) {\n var length = input.length;\n var dimension = opt_dimension > 1 ? opt_dimension : 2;\n var output = opt_output;\n if (output === undefined) {\n if (dimension > 2) {\n // preserve values beyond second dimension\n output = input.slice();\n } else {\n output = new Array(length);\n }\n }\n for (var i = 0; i < length; i += dimension) {\n output[i] = 180 * input[i] / HALF_SIZE;\n output[i + 1] = 360 * Math.atan(\n Math.exp(input[i + 1] / RADIUS)) / Math.PI - 90;\n }\n return output;\n}\n\n//# sourceMappingURL=epsg3857.js.map","/**\n * @module ol/proj/epsg4326\n */\nimport Projection from './Projection.js';\nimport Units from './Units.js';\n\n\n/**\n * Semi-major radius of the WGS84 ellipsoid.\n *\n * @const\n * @type {number}\n */\nexport var RADIUS = 6378137;\n\n\n/**\n * Extent of the EPSG:4326 projection which is the whole world.\n *\n * @const\n * @type {import(\"../extent.js\").Extent}\n */\nexport var EXTENT = [-180, -90, 180, 90];\n\n\n/**\n * @const\n * @type {number}\n */\nexport var METERS_PER_UNIT = Math.PI * RADIUS / 180;\n\n\n/**\n * @classdesc\n * Projection object for WGS84 geographic coordinates (EPSG:4326).\n *\n * Note that OpenLayers does not strictly comply with the EPSG definition.\n * The EPSG registry defines 4326 as a CRS for Latitude,Longitude (y,x).\n * OpenLayers treats EPSG:4326 as a pseudo-projection, with x,y coordinates.\n */\nvar EPSG4326Projection = /*@__PURE__*/(function (Projection) {\n function EPSG4326Projection(code, opt_axisOrientation) {\n Projection.call(this, {\n code: code,\n units: Units.DEGREES,\n extent: EXTENT,\n axisOrientation: opt_axisOrientation,\n global: true,\n metersPerUnit: METERS_PER_UNIT,\n worldExtent: EXTENT\n });\n\n }\n\n if ( Projection ) EPSG4326Projection.__proto__ = Projection;\n EPSG4326Projection.prototype = Object.create( Projection && Projection.prototype );\n EPSG4326Projection.prototype.constructor = EPSG4326Projection;\n\n return EPSG4326Projection;\n}(Projection));\n\n\n/**\n * Projections equal to EPSG:4326.\n *\n * @const\n * @type {Array}\n */\nexport var PROJECTIONS = [\n new EPSG4326Projection('CRS:84'),\n new EPSG4326Projection('EPSG:4326', 'neu'),\n new EPSG4326Projection('urn:ogc:def:crs:EPSG::4326', 'neu'),\n new EPSG4326Projection('urn:ogc:def:crs:EPSG:6.6:4326', 'neu'),\n new EPSG4326Projection('urn:ogc:def:crs:OGC:1.3:CRS84'),\n new EPSG4326Projection('urn:ogc:def:crs:OGC:2:84'),\n new EPSG4326Projection('http://www.opengis.net/gml/srs/epsg.xml#4326', 'neu'),\n new EPSG4326Projection('urn:x-ogc:def:crs:EPSG:4326', 'neu')\n];\n\n//# sourceMappingURL=epsg4326.js.map","/**\n * @module ol/proj/projections\n */\n\n\n/**\n * @type {Object}\n */\nvar cache = {};\n\n\n/**\n * Clear the projections cache.\n */\nexport function clear() {\n cache = {};\n}\n\n\n/**\n * Get a cached projection by code.\n * @param {string} code The code for the projection.\n * @return {import(\"./Projection.js\").default} The projection (if cached).\n */\nexport function get(code) {\n return cache[code] || null;\n}\n\n\n/**\n * Add a projection to the cache.\n * @param {string} code The projection code.\n * @param {import(\"./Projection.js\").default} projection The projection to cache.\n */\nexport function add(code, projection) {\n cache[code] = projection;\n}\n\n//# sourceMappingURL=projections.js.map","/**\n * @module ol/proj/transforms\n */\nimport {isEmpty} from '../obj.js';\n\n\n/**\n * @private\n * @type {!Object>}\n */\nvar transforms = {};\n\n\n/**\n * Clear the transform cache.\n */\nexport function clear() {\n transforms = {};\n}\n\n\n/**\n * Registers a conversion function to convert coordinates from the source\n * projection to the destination projection.\n *\n * @param {import(\"./Projection.js\").default} source Source.\n * @param {import(\"./Projection.js\").default} destination Destination.\n * @param {import(\"../proj.js\").TransformFunction} transformFn Transform.\n */\nexport function add(source, destination, transformFn) {\n var sourceCode = source.getCode();\n var destinationCode = destination.getCode();\n if (!(sourceCode in transforms)) {\n transforms[sourceCode] = {};\n }\n transforms[sourceCode][destinationCode] = transformFn;\n}\n\n\n/**\n * Unregisters the conversion function to convert coordinates from the source\n * projection to the destination projection. This method is used to clean up\n * cached transforms during testing.\n *\n * @param {import(\"./Projection.js\").default} source Source projection.\n * @param {import(\"./Projection.js\").default} destination Destination projection.\n * @return {import(\"../proj.js\").TransformFunction} transformFn The unregistered transform.\n */\nexport function remove(source, destination) {\n var sourceCode = source.getCode();\n var destinationCode = destination.getCode();\n var transform = transforms[sourceCode][destinationCode];\n delete transforms[sourceCode][destinationCode];\n if (isEmpty(transforms[sourceCode])) {\n delete transforms[sourceCode];\n }\n return transform;\n}\n\n\n/**\n * Get a transform given a source code and a destination code.\n * @param {string} sourceCode The code for the source projection.\n * @param {string} destinationCode The code for the destination projection.\n * @return {import(\"../proj.js\").TransformFunction|undefined} The transform function (if found).\n */\nexport function get(sourceCode, destinationCode) {\n var transform;\n if (sourceCode in transforms && destinationCode in transforms[sourceCode]) {\n transform = transforms[sourceCode][destinationCode];\n }\n return transform;\n}\n\n//# sourceMappingURL=transforms.js.map","/**\n * @module ol/proj\n */\n\n/**\n * The ol/proj module stores:\n * * a list of {@link module:ol/proj/Projection}\n * objects, one for each projection supported by the application\n * * a list of transform functions needed to convert coordinates in one projection\n * into another.\n *\n * The static functions are the methods used to maintain these.\n * Each transform function can handle not only simple coordinate pairs, but also\n * large arrays of coordinates such as vector geometries.\n *\n * When loaded, the library adds projection objects for EPSG:4326 (WGS84\n * geographic coordinates) and EPSG:3857 (Web or Spherical Mercator, as used\n * for example by Bing Maps or OpenStreetMap), together with the relevant\n * transform functions.\n *\n * Additional transforms may be added by using the http://proj4js.org/\n * library (version 2.2 or later). You can use the full build supplied by\n * Proj4js, or create a custom build to support those projections you need; see\n * the Proj4js website for how to do this. You also need the Proj4js definitions\n * for the required projections. These definitions can be obtained from\n * https://epsg.io/, and are a JS function, so can be loaded in a script\n * tag (as in the examples) or pasted into your application.\n *\n * After all required projection definitions are added to proj4's registry (by\n * using `proj4.defs()`), simply call `register(proj4)` from the `ol/proj/proj4`\n * package. Existing transforms are not changed by this function. See\n * examples/wms-image-custom-proj for an example of this.\n *\n * Additional projection definitions can be registered with `proj4.defs()` any\n * time. Just make sure to call `register(proj4)` again; for example, with user-supplied data where you don't\n * know in advance what projections are needed, you can initially load minimal\n * support and then load whichever are requested.\n *\n * Note that Proj4js does not support projection extents. If you want to add\n * one for creating default tile grids, you can add it after the Projection\n * object has been created with `setExtent`, for example,\n * `get('EPSG:1234').setExtent(extent)`.\n *\n * In addition to Proj4js support, any transform functions can be added with\n * {@link module:ol/proj~addCoordinateTransforms}. To use this, you must first create\n * a {@link module:ol/proj/Projection} object for the new projection and add it with\n * {@link module:ol/proj~addProjection}. You can then add the forward and inverse\n * functions with {@link module:ol/proj~addCoordinateTransforms}. See\n * examples/wms-custom-proj for an example of this.\n *\n * Note that if no transforms are needed and you only need to define the\n * projection, just add a {@link module:ol/proj/Projection} with\n * {@link module:ol/proj~addProjection}. See examples/wms-no-proj for an example of\n * this.\n */\nimport {getDistance} from './sphere.js';\nimport {applyTransform} from './extent.js';\nimport {modulo} from './math.js';\nimport {toEPSG4326, fromEPSG4326, PROJECTIONS as EPSG3857_PROJECTIONS} from './proj/epsg3857.js';\nimport {PROJECTIONS as EPSG4326_PROJECTIONS} from './proj/epsg4326.js';\nimport Projection from './proj/Projection.js';\nimport Units, {METERS_PER_UNIT} from './proj/Units.js';\nimport * as projections from './proj/projections.js';\nimport {add as addTransformFunc, clear as clearTransformFuncs, get as getTransformFunc} from './proj/transforms.js';\n\n\n/**\n * A projection as {@link module:ol/proj/Projection}, SRS identifier\n * string or undefined.\n * @typedef {Projection|string|undefined} ProjectionLike\n * @api\n */\n\n\n/**\n * A transform function accepts an array of input coordinate values, an optional\n * output array, and an optional dimension (default should be 2). The function\n * transforms the input coordinate values, populates the output array, and\n * returns the output array.\n *\n * @typedef {function(Array, Array=, number=): Array} TransformFunction\n * @api\n */\n\n\nexport {METERS_PER_UNIT};\n\nexport {Projection};\n\n/**\n * @param {Array} input Input coordinate array.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension.\n * @return {Array} Output coordinate array (new array, same coordinate\n * values).\n */\nexport function cloneTransform(input, opt_output, opt_dimension) {\n var output;\n if (opt_output !== undefined) {\n for (var i = 0, ii = input.length; i < ii; ++i) {\n opt_output[i] = input[i];\n }\n output = opt_output;\n } else {\n output = input.slice();\n }\n return output;\n}\n\n\n/**\n * @param {Array} input Input coordinate array.\n * @param {Array=} opt_output Output array of coordinate values.\n * @param {number=} opt_dimension Dimension.\n * @return {Array} Input coordinate array (same array as input).\n */\nexport function identityTransform(input, opt_output, opt_dimension) {\n if (opt_output !== undefined && input !== opt_output) {\n for (var i = 0, ii = input.length; i < ii; ++i) {\n opt_output[i] = input[i];\n }\n input = opt_output;\n }\n return input;\n}\n\n\n/**\n * Add a Projection object to the list of supported projections that can be\n * looked up by their code.\n *\n * @param {Projection} projection Projection instance.\n * @api\n */\nexport function addProjection(projection) {\n projections.add(projection.getCode(), projection);\n addTransformFunc(projection, projection, cloneTransform);\n}\n\n\n/**\n * @param {Array} projections Projections.\n */\nexport function addProjections(projections) {\n projections.forEach(addProjection);\n}\n\n\n/**\n * Fetches a Projection object for the code specified.\n *\n * @param {ProjectionLike} projectionLike Either a code string which is\n * a combination of authority and identifier such as \"EPSG:4326\", or an\n * existing projection object, or undefined.\n * @return {Projection} Projection object, or null if not in list.\n * @api\n */\nexport function get(projectionLike) {\n return typeof projectionLike === 'string' ?\n projections.get(/** @type {string} */ (projectionLike)) :\n (/** @type {Projection} */ (projectionLike) || null);\n}\n\n\n/**\n * Get the resolution of the point in degrees or distance units.\n * For projections with degrees as the unit this will simply return the\n * provided resolution. For other projections the point resolution is\n * by default estimated by transforming the 'point' pixel to EPSG:4326,\n * measuring its width and height on the normal sphere,\n * and taking the average of the width and height.\n * A custom function can be provided for a specific projection, either\n * by setting the `getPointResolution` option in the\n * {@link module:ol/proj/Projection~Projection} constructor or by using\n * {@link module:ol/proj/Projection~Projection#setGetPointResolution} to change an existing\n * projection object.\n * @param {ProjectionLike} projection The projection.\n * @param {number} resolution Nominal resolution in projection units.\n * @param {import(\"./coordinate.js\").Coordinate} point Point to find adjusted resolution at.\n * @param {Units=} opt_units Units to get the point resolution in.\n * Default is the projection's units.\n * @return {number} Point resolution.\n * @api\n */\nexport function getPointResolution(projection, resolution, point, opt_units) {\n projection = get(projection);\n var pointResolution;\n var getter = projection.getPointResolutionFunc();\n if (getter) {\n pointResolution = getter(resolution, point);\n } else {\n var units = projection.getUnits();\n if (units == Units.DEGREES && !opt_units || opt_units == Units.DEGREES) {\n pointResolution = resolution;\n } else {\n // Estimate point resolution by transforming the center pixel to EPSG:4326,\n // measuring its width and height on the normal sphere, and taking the\n // average of the width and height.\n var toEPSG4326 = getTransformFromProjections(projection, get('EPSG:4326'));\n var vertices = [\n point[0] - resolution / 2, point[1],\n point[0] + resolution / 2, point[1],\n point[0], point[1] - resolution / 2,\n point[0], point[1] + resolution / 2\n ];\n vertices = toEPSG4326(vertices, vertices, 2);\n var width = getDistance(vertices.slice(0, 2), vertices.slice(2, 4));\n var height = getDistance(vertices.slice(4, 6), vertices.slice(6, 8));\n pointResolution = (width + height) / 2;\n var metersPerUnit = opt_units ?\n METERS_PER_UNIT[opt_units] :\n projection.getMetersPerUnit();\n if (metersPerUnit !== undefined) {\n pointResolution /= metersPerUnit;\n }\n }\n }\n return pointResolution;\n}\n\n\n/**\n * Registers transformation functions that don't alter coordinates. Those allow\n * to transform between projections with equal meaning.\n *\n * @param {Array} projections Projections.\n * @api\n */\nexport function addEquivalentProjections(projections) {\n addProjections(projections);\n projections.forEach(function(source) {\n projections.forEach(function(destination) {\n if (source !== destination) {\n addTransformFunc(source, destination, cloneTransform);\n }\n });\n });\n}\n\n\n/**\n * Registers transformation functions to convert coordinates in any projection\n * in projection1 to any projection in projection2.\n *\n * @param {Array} projections1 Projections with equal\n * meaning.\n * @param {Array} projections2 Projections with equal\n * meaning.\n * @param {TransformFunction} forwardTransform Transformation from any\n * projection in projection1 to any projection in projection2.\n * @param {TransformFunction} inverseTransform Transform from any projection\n * in projection2 to any projection in projection1..\n */\nexport function addEquivalentTransforms(projections1, projections2, forwardTransform, inverseTransform) {\n projections1.forEach(function(projection1) {\n projections2.forEach(function(projection2) {\n addTransformFunc(projection1, projection2, forwardTransform);\n addTransformFunc(projection2, projection1, inverseTransform);\n });\n });\n}\n\n\n/**\n * Clear all cached projections and transforms.\n */\nexport function clearAllProjections() {\n projections.clear();\n clearTransformFuncs();\n}\n\n\n/**\n * @param {Projection|string|undefined} projection Projection.\n * @param {string} defaultCode Default code.\n * @return {Projection} Projection.\n */\nexport function createProjection(projection, defaultCode) {\n if (!projection) {\n return get(defaultCode);\n } else if (typeof projection === 'string') {\n return get(projection);\n } else {\n return (\n /** @type {Projection} */ (projection)\n );\n }\n}\n\n\n/**\n * Creates a {@link module:ol/proj~TransformFunction} from a simple 2D coordinate transform\n * function.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} coordTransform Coordinate\n * transform.\n * @return {TransformFunction} Transform function.\n */\nexport function createTransformFromCoordinateTransform(coordTransform) {\n return (\n /**\n * @param {Array} input Input.\n * @param {Array=} opt_output Output.\n * @param {number=} opt_dimension Dimension.\n * @return {Array} Output.\n */\n function(input, opt_output, opt_dimension) {\n var length = input.length;\n var dimension = opt_dimension !== undefined ? opt_dimension : 2;\n var output = opt_output !== undefined ? opt_output : new Array(length);\n for (var i = 0; i < length; i += dimension) {\n var point = coordTransform([input[i], input[i + 1]]);\n output[i] = point[0];\n output[i + 1] = point[1];\n for (var j = dimension - 1; j >= 2; --j) {\n output[i + j] = input[i + j];\n }\n }\n return output;\n });\n}\n\n\n/**\n * Registers coordinate transform functions to convert coordinates between the\n * source projection and the destination projection.\n * The forward and inverse functions convert coordinate pairs; this function\n * converts these into the functions used internally which also handle\n * extents and coordinate arrays.\n *\n * @param {ProjectionLike} source Source projection.\n * @param {ProjectionLike} destination Destination projection.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} forward The forward transform\n * function (that is, from the source projection to the destination\n * projection) that takes a {@link module:ol/coordinate~Coordinate} as argument and returns\n * the transformed {@link module:ol/coordinate~Coordinate}.\n * @param {function(import(\"./coordinate.js\").Coordinate): import(\"./coordinate.js\").Coordinate} inverse The inverse transform\n * function (that is, from the destination projection to the source\n * projection) that takes a {@link module:ol/coordinate~Coordinate} as argument and returns\n * the transformed {@link module:ol/coordinate~Coordinate}.\n * @api\n */\nexport function addCoordinateTransforms(source, destination, forward, inverse) {\n var sourceProj = get(source);\n var destProj = get(destination);\n addTransformFunc(sourceProj, destProj, createTransformFromCoordinateTransform(forward));\n addTransformFunc(destProj, sourceProj, createTransformFromCoordinateTransform(inverse));\n}\n\n\n/**\n * Transforms a coordinate from longitude/latitude to a different projection.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate as longitude and latitude, i.e.\n * an array with longitude as 1st and latitude as 2nd element.\n * @param {ProjectionLike=} opt_projection Target projection. The\n * default is Web Mercator, i.e. 'EPSG:3857'.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate projected to the target projection.\n * @api\n */\nexport function fromLonLat(coordinate, opt_projection) {\n return transform(coordinate, 'EPSG:4326',\n opt_projection !== undefined ? opt_projection : 'EPSG:3857');\n}\n\n\n/**\n * Transforms a coordinate to longitude/latitude.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Projected coordinate.\n * @param {ProjectionLike=} opt_projection Projection of the coordinate.\n * The default is Web Mercator, i.e. 'EPSG:3857'.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate as longitude and latitude, i.e. an array\n * with longitude as 1st and latitude as 2nd element.\n * @api\n */\nexport function toLonLat(coordinate, opt_projection) {\n var lonLat = transform(coordinate,\n opt_projection !== undefined ? opt_projection : 'EPSG:3857', 'EPSG:4326');\n var lon = lonLat[0];\n if (lon < -180 || lon > 180) {\n lonLat[0] = modulo(lon + 180, 360) - 180;\n }\n return lonLat;\n}\n\n\n/**\n * Checks if two projections are the same, that is every coordinate in one\n * projection does represent the same geographic point as the same coordinate in\n * the other projection.\n *\n * @param {Projection} projection1 Projection 1.\n * @param {Projection} projection2 Projection 2.\n * @return {boolean} Equivalent.\n * @api\n */\nexport function equivalent(projection1, projection2) {\n if (projection1 === projection2) {\n return true;\n }\n var equalUnits = projection1.getUnits() === projection2.getUnits();\n if (projection1.getCode() === projection2.getCode()) {\n return equalUnits;\n } else {\n var transformFunc = getTransformFromProjections(projection1, projection2);\n return transformFunc === cloneTransform && equalUnits;\n }\n}\n\n\n/**\n * Searches in the list of transform functions for the function for converting\n * coordinates from the source projection to the destination projection.\n *\n * @param {Projection} sourceProjection Source Projection object.\n * @param {Projection} destinationProjection Destination Projection\n * object.\n * @return {TransformFunction} Transform function.\n */\nexport function getTransformFromProjections(sourceProjection, destinationProjection) {\n var sourceCode = sourceProjection.getCode();\n var destinationCode = destinationProjection.getCode();\n var transformFunc = getTransformFunc(sourceCode, destinationCode);\n if (!transformFunc) {\n transformFunc = identityTransform;\n }\n return transformFunc;\n}\n\n\n/**\n * Given the projection-like objects, searches for a transformation\n * function to convert a coordinates array from the source projection to the\n * destination projection.\n *\n * @param {ProjectionLike} source Source.\n * @param {ProjectionLike} destination Destination.\n * @return {TransformFunction} Transform function.\n * @api\n */\nexport function getTransform(source, destination) {\n var sourceProjection = get(source);\n var destinationProjection = get(destination);\n return getTransformFromProjections(sourceProjection, destinationProjection);\n}\n\n\n/**\n * Transforms a coordinate from source projection to destination projection.\n * This returns a new coordinate (and does not modify the original).\n *\n * See {@link module:ol/proj~transformExtent} for extent transformation.\n * See the transform method of {@link module:ol/geom/Geometry~Geometry} and its\n * subclasses for geometry transforms.\n *\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {ProjectionLike} source Source projection-like.\n * @param {ProjectionLike} destination Destination projection-like.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n * @api\n */\nexport function transform(coordinate, source, destination) {\n var transformFunc = getTransform(source, destination);\n return transformFunc(coordinate, undefined, coordinate.length);\n}\n\n\n/**\n * Transforms an extent from source projection to destination projection. This\n * returns a new extent (and does not modify the original).\n *\n * @param {import(\"./extent.js\").Extent} extent The extent to transform.\n * @param {ProjectionLike} source Source projection-like.\n * @param {ProjectionLike} destination Destination projection-like.\n * @return {import(\"./extent.js\").Extent} The transformed extent.\n * @api\n */\nexport function transformExtent(extent, source, destination) {\n var transformFunc = getTransform(source, destination);\n return applyTransform(extent, transformFunc);\n}\n\n\n/**\n * Transforms the given point to the destination projection.\n *\n * @param {import(\"./coordinate.js\").Coordinate} point Point.\n * @param {Projection} sourceProjection Source projection.\n * @param {Projection} destinationProjection Destination projection.\n * @return {import(\"./coordinate.js\").Coordinate} Point.\n */\nexport function transformWithProjections(point, sourceProjection, destinationProjection) {\n var transformFunc = getTransformFromProjections(sourceProjection, destinationProjection);\n return transformFunc(point);\n}\n\n/**\n * Add transforms to and from EPSG:4326 and EPSG:3857. This function is called\n * by when this module is executed and should only need to be called again after\n * `clearAllProjections()` is called (e.g. in tests).\n */\nexport function addCommon() {\n // Add transformations that don't alter coordinates to convert within set of\n // projections with equal meaning.\n addEquivalentProjections(EPSG3857_PROJECTIONS);\n addEquivalentProjections(EPSG4326_PROJECTIONS);\n // Add transformations to convert EPSG:4326 like coordinates to EPSG:3857 like\n // coordinates and back.\n addEquivalentTransforms(EPSG4326_PROJECTIONS, EPSG3857_PROJECTIONS, fromEPSG4326, toEPSG4326);\n}\n\naddCommon();\n\n//# sourceMappingURL=proj.js.map","/**\n * @module ol/transform\n */\nimport {assert} from './asserts.js';\n\n\n/**\n * An array representing an affine 2d transformation for use with\n * {@link module:ol/transform} functions. The array has 6 elements.\n * @typedef {!Array} Transform\n */\n\n\n/**\n * Collection of affine 2d transformation functions. The functions work on an\n * array of 6 elements. The element order is compatible with the [SVGMatrix\n * interface](https://developer.mozilla.org/en-US/docs/Web/API/SVGMatrix) and is\n * a subset (elements a to f) of a 3×3 matrix:\n * ```\n * [ a c e ]\n * [ b d f ]\n * [ 0 0 1 ]\n * ```\n */\n\n\n/**\n * @private\n * @type {Transform}\n */\nvar tmp_ = new Array(6);\n\n\n/**\n * Create an identity transform.\n * @return {!Transform} Identity transform.\n */\nexport function create() {\n return [1, 0, 0, 1, 0, 0];\n}\n\n\n/**\n * Resets the given transform to an identity transform.\n * @param {!Transform} transform Transform.\n * @return {!Transform} Transform.\n */\nexport function reset(transform) {\n return set(transform, 1, 0, 0, 1, 0, 0);\n}\n\n\n/**\n * Multiply the underlying matrices of two transforms and return the result in\n * the first transform.\n * @param {!Transform} transform1 Transform parameters of matrix 1.\n * @param {!Transform} transform2 Transform parameters of matrix 2.\n * @return {!Transform} transform1 multiplied with transform2.\n */\nexport function multiply(transform1, transform2) {\n var a1 = transform1[0];\n var b1 = transform1[1];\n var c1 = transform1[2];\n var d1 = transform1[3];\n var e1 = transform1[4];\n var f1 = transform1[5];\n var a2 = transform2[0];\n var b2 = transform2[1];\n var c2 = transform2[2];\n var d2 = transform2[3];\n var e2 = transform2[4];\n var f2 = transform2[5];\n\n transform1[0] = a1 * a2 + c1 * b2;\n transform1[1] = b1 * a2 + d1 * b2;\n transform1[2] = a1 * c2 + c1 * d2;\n transform1[3] = b1 * c2 + d1 * d2;\n transform1[4] = a1 * e2 + c1 * f2 + e1;\n transform1[5] = b1 * e2 + d1 * f2 + f1;\n\n return transform1;\n}\n\n/**\n * Set the transform components a-f on a given transform.\n * @param {!Transform} transform Transform.\n * @param {number} a The a component of the transform.\n * @param {number} b The b component of the transform.\n * @param {number} c The c component of the transform.\n * @param {number} d The d component of the transform.\n * @param {number} e The e component of the transform.\n * @param {number} f The f component of the transform.\n * @return {!Transform} Matrix with transform applied.\n */\nexport function set(transform, a, b, c, d, e, f) {\n transform[0] = a;\n transform[1] = b;\n transform[2] = c;\n transform[3] = d;\n transform[4] = e;\n transform[5] = f;\n return transform;\n}\n\n\n/**\n * Set transform on one matrix from another matrix.\n * @param {!Transform} transform1 Matrix to set transform to.\n * @param {!Transform} transform2 Matrix to set transform from.\n * @return {!Transform} transform1 with transform from transform2 applied.\n */\nexport function setFromArray(transform1, transform2) {\n transform1[0] = transform2[0];\n transform1[1] = transform2[1];\n transform1[2] = transform2[2];\n transform1[3] = transform2[3];\n transform1[4] = transform2[4];\n transform1[5] = transform2[5];\n return transform1;\n}\n\n\n/**\n * Transforms the given coordinate with the given transform returning the\n * resulting, transformed coordinate. The coordinate will be modified in-place.\n *\n * @param {Transform} transform The transformation.\n * @param {import(\"./coordinate.js\").Coordinate|import(\"./pixel.js\").Pixel} coordinate The coordinate to transform.\n * @return {import(\"./coordinate.js\").Coordinate|import(\"./pixel.js\").Pixel} return coordinate so that operations can be\n * chained together.\n */\nexport function apply(transform, coordinate) {\n var x = coordinate[0];\n var y = coordinate[1];\n coordinate[0] = transform[0] * x + transform[2] * y + transform[4];\n coordinate[1] = transform[1] * x + transform[3] * y + transform[5];\n return coordinate;\n}\n\n\n/**\n * Applies rotation to the given transform.\n * @param {!Transform} transform Transform.\n * @param {number} angle Angle in radians.\n * @return {!Transform} The rotated transform.\n */\nexport function rotate(transform, angle) {\n var cos = Math.cos(angle);\n var sin = Math.sin(angle);\n return multiply(transform, set(tmp_, cos, sin, -sin, cos, 0, 0));\n}\n\n\n/**\n * Applies scale to a given transform.\n * @param {!Transform} transform Transform.\n * @param {number} x Scale factor x.\n * @param {number} y Scale factor y.\n * @return {!Transform} The scaled transform.\n */\nexport function scale(transform, x, y) {\n return multiply(transform, set(tmp_, x, 0, 0, y, 0, 0));\n}\n\n\n/**\n * Applies translation to the given transform.\n * @param {!Transform} transform Transform.\n * @param {number} dx Translation x.\n * @param {number} dy Translation y.\n * @return {!Transform} The translated transform.\n */\nexport function translate(transform, dx, dy) {\n return multiply(transform, set(tmp_, 1, 0, 0, 1, dx, dy));\n}\n\n\n/**\n * Creates a composite transform given an initial translation, scale, rotation, and\n * final translation (in that order only, not commutative).\n * @param {!Transform} transform The transform (will be modified in place).\n * @param {number} dx1 Initial translation x.\n * @param {number} dy1 Initial translation y.\n * @param {number} sx Scale factor x.\n * @param {number} sy Scale factor y.\n * @param {number} angle Rotation (in counter-clockwise radians).\n * @param {number} dx2 Final translation x.\n * @param {number} dy2 Final translation y.\n * @return {!Transform} The composite transform.\n */\nexport function compose(transform, dx1, dy1, sx, sy, angle, dx2, dy2) {\n var sin = Math.sin(angle);\n var cos = Math.cos(angle);\n transform[0] = sx * cos;\n transform[1] = sy * sin;\n transform[2] = -sx * sin;\n transform[3] = sy * cos;\n transform[4] = dx2 * sx * cos - dy2 * sx * sin + dx1;\n transform[5] = dx2 * sy * sin + dy2 * sy * cos + dy1;\n return transform;\n}\n\n\n/**\n * Invert the given transform.\n * @param {!Transform} transform Transform.\n * @return {!Transform} Inverse of the transform.\n */\nexport function invert(transform) {\n var det = determinant(transform);\n assert(det !== 0, 32); // Transformation matrix cannot be inverted\n\n var a = transform[0];\n var b = transform[1];\n var c = transform[2];\n var d = transform[3];\n var e = transform[4];\n var f = transform[5];\n\n transform[0] = d / det;\n transform[1] = -b / det;\n transform[2] = -c / det;\n transform[3] = a / det;\n transform[4] = (c * f - d * e) / det;\n transform[5] = -(a * f - b * e) / det;\n\n return transform;\n}\n\n\n/**\n * Returns the determinant of the given matrix.\n * @param {!Transform} mat Matrix.\n * @return {number} Determinant.\n */\nexport function determinant(mat) {\n return mat[0] * mat[3] - mat[1] * mat[2];\n}\n\n//# sourceMappingURL=transform.js.map","/**\n * @module ol/geom/Geometry\n */\nimport {abstract} from '../util.js';\nimport BaseObject from '../Object.js';\nimport {createEmpty, getHeight, returnOrUpdate} from '../extent.js';\nimport {transform2D} from './flat/transform.js';\nimport {get as getProjection, getTransform} from '../proj.js';\nimport Units from '../proj/Units.js';\nimport {create as createTransform, compose as composeTransform} from '../transform.js';\n\n\n/**\n * @type {import(\"../transform.js\").Transform}\n */\nvar tmpTransform = createTransform();\n\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Base class for vector geometries.\n *\n * To get notified of changes to the geometry, register a listener for the\n * generic `change` event on your geometry instance.\n *\n * @abstract\n * @api\n */\nvar Geometry = /*@__PURE__*/(function (BaseObject) {\n function Geometry() {\n\n BaseObject.call(this);\n\n /**\n * @private\n * @type {import(\"../extent.js\").Extent}\n */\n this.extent_ = createEmpty();\n\n /**\n * @private\n * @type {number}\n */\n this.extentRevision_ = -1;\n\n /**\n * @protected\n * @type {Object}\n */\n this.simplifiedGeometryCache = {};\n\n /**\n * @protected\n * @type {number}\n */\n this.simplifiedGeometryMaxMinSquaredTolerance = 0;\n\n /**\n * @protected\n * @type {number}\n */\n this.simplifiedGeometryRevision = 0;\n\n }\n\n if ( BaseObject ) Geometry.__proto__ = BaseObject;\n Geometry.prototype = Object.create( BaseObject && BaseObject.prototype );\n Geometry.prototype.constructor = Geometry;\n\n /**\n * Make a complete copy of the geometry.\n * @abstract\n * @return {!Geometry} Clone.\n */\n Geometry.prototype.clone = function clone () {\n return abstract();\n };\n\n /**\n * @abstract\n * @param {number} x X.\n * @param {number} y Y.\n * @param {import(\"../coordinate.js\").Coordinate} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @return {number} Minimum squared distance.\n */\n Geometry.prototype.closestPointXY = function closestPointXY (x, y, closestPoint, minSquaredDistance) {\n return abstract();\n };\n\n /**\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\n Geometry.prototype.containsXY = function containsXY (x, y) {\n return false;\n };\n\n /**\n * Return the closest point of the geometry to the passed point as\n * {@link module:ol/coordinate~Coordinate coordinate}.\n * @param {import(\"../coordinate.js\").Coordinate} point Point.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_closestPoint Closest point.\n * @return {import(\"../coordinate.js\").Coordinate} Closest point.\n * @api\n */\n Geometry.prototype.getClosestPoint = function getClosestPoint (point, opt_closestPoint) {\n var closestPoint = opt_closestPoint ? opt_closestPoint : [NaN, NaN];\n this.closestPointXY(point[0], point[1], closestPoint, Infinity);\n return closestPoint;\n };\n\n /**\n * Returns true if this geometry includes the specified coordinate. If the\n * coordinate is on the boundary of the geometry, returns false.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} Contains coordinate.\n * @api\n */\n Geometry.prototype.intersectsCoordinate = function intersectsCoordinate (coordinate) {\n return this.containsXY(coordinate[0], coordinate[1]);\n };\n\n /**\n * @abstract\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @protected\n * @return {import(\"../extent.js\").Extent} extent Extent.\n */\n Geometry.prototype.computeExtent = function computeExtent (extent) {\n return abstract();\n };\n\n /**\n * Get the extent of the geometry.\n * @param {import(\"../extent.js\").Extent=} opt_extent Extent.\n * @return {import(\"../extent.js\").Extent} extent Extent.\n * @api\n */\n Geometry.prototype.getExtent = function getExtent (opt_extent) {\n if (this.extentRevision_ != this.getRevision()) {\n this.extent_ = this.computeExtent(this.extent_);\n this.extentRevision_ = this.getRevision();\n }\n return returnOrUpdate(this.extent_, opt_extent);\n };\n\n /**\n * Rotate the geometry around a given coordinate. This modifies the geometry\n * coordinates in place.\n * @abstract\n * @param {number} angle Rotation angle in radians.\n * @param {import(\"../coordinate.js\").Coordinate} anchor The rotation center.\n * @api\n */\n Geometry.prototype.rotate = function rotate (angle, anchor) {\n abstract();\n };\n\n /**\n * Scale the geometry (with an optional origin). This modifies the geometry\n * coordinates in place.\n * @abstract\n * @param {number} sx The scaling factor in the x-direction.\n * @param {number=} opt_sy The scaling factor in the y-direction (defaults to\n * sx).\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor The scale origin (defaults to the center\n * of the geometry extent).\n * @api\n */\n Geometry.prototype.scale = function scale (sx, opt_sy, opt_anchor) {\n abstract();\n };\n\n /**\n * Create a simplified version of this geometry. For linestrings, this uses\n * the the {@link\n * https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm\n * Douglas Peucker} algorithm. For polygons, a quantization-based\n * simplification is used to preserve topology.\n * @param {number} tolerance The tolerance distance for simplification.\n * @return {Geometry} A new, simplified version of the original geometry.\n * @api\n */\n Geometry.prototype.simplify = function simplify (tolerance) {\n return this.getSimplifiedGeometry(tolerance * tolerance);\n };\n\n /**\n * Create a simplified version of this geometry using the Douglas Peucker\n * algorithm.\n * See https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm.\n * @abstract\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Geometry} Simplified geometry.\n */\n Geometry.prototype.getSimplifiedGeometry = function getSimplifiedGeometry (squaredTolerance) {\n return abstract();\n };\n\n /**\n * Get the type of this geometry.\n * @abstract\n * @return {import(\"./GeometryType.js\").default} Geometry type.\n */\n Geometry.prototype.getType = function getType () {\n return abstract();\n };\n\n /**\n * Apply a transform function to each coordinate of the geometry.\n * The geometry is modified in place.\n * If you do not want the geometry modified in place, first `clone()` it and\n * then use this function on the clone.\n * @abstract\n * @param {import(\"../proj.js\").TransformFunction} transformFn Transform.\n */\n Geometry.prototype.applyTransform = function applyTransform (transformFn) {\n abstract();\n };\n\n /**\n * Test if the geometry and the passed extent intersect.\n * @abstract\n * @param {import(\"../extent.js\").Extent} extent Extent.\n * @return {boolean} `true` if the geometry and the extent intersect.\n */\n Geometry.prototype.intersectsExtent = function intersectsExtent (extent) {\n return abstract();\n };\n\n /**\n * Translate the geometry. This modifies the geometry coordinates in place. If\n * instead you want a new geometry, first `clone()` this geometry.\n * @abstract\n * @param {number} deltaX Delta X.\n * @param {number} deltaY Delta Y.\n * @api\n */\n Geometry.prototype.translate = function translate (deltaX, deltaY) {\n abstract();\n };\n\n /**\n * Transform each coordinate of the geometry from one coordinate reference\n * system to another. The geometry is modified in place.\n * For example, a line will be transformed to a line and a circle to a circle.\n * If you do not want the geometry modified in place, first `clone()` it and\n * then use this function on the clone.\n *\n * @param {import(\"../proj.js\").ProjectionLike} source The current projection. Can be a\n * string identifier or a {@link module:ol/proj/Projection~Projection} object.\n * @param {import(\"../proj.js\").ProjectionLike} destination The desired projection. Can be a\n * string identifier or a {@link module:ol/proj/Projection~Projection} object.\n * @return {Geometry} This geometry. Note that original geometry is\n * modified in place.\n * @api\n */\n Geometry.prototype.transform = function transform (source, destination) {\n /** @type {import(\"../proj/Projection.js\").default} */\n var sourceProj = getProjection(source);\n var transformFn = sourceProj.getUnits() == Units.TILE_PIXELS ?\n function(inCoordinates, outCoordinates, stride) {\n var pixelExtent = sourceProj.getExtent();\n var projectedExtent = sourceProj.getWorldExtent();\n var scale = getHeight(projectedExtent) / getHeight(pixelExtent);\n composeTransform(tmpTransform,\n projectedExtent[0], projectedExtent[3],\n scale, -scale, 0,\n 0, 0);\n transform2D(inCoordinates, 0, inCoordinates.length, stride,\n tmpTransform, outCoordinates);\n return getTransform(sourceProj, destination)(inCoordinates, outCoordinates, stride);\n } :\n getTransform(sourceProj, destination);\n this.applyTransform(transformFn);\n return this;\n };\n\n return Geometry;\n}(BaseObject));\n\n\nexport default Geometry;\n\n//# sourceMappingURL=Geometry.js.map","/**\n * @module ol/geom/SimpleGeometry\n */\nimport {abstract} from '../util.js';\nimport {createOrUpdateFromFlatCoordinates, getCenter} from '../extent.js';\nimport Geometry from './Geometry.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport {rotate, scale, translate, transform2D} from './flat/transform.js';\nimport {clear} from '../obj.js';\n\n/**\n * @classdesc\n * Abstract base class; only used for creating subclasses; do not instantiate\n * in apps, as cannot be rendered.\n *\n * @abstract\n * @api\n */\nvar SimpleGeometry = /*@__PURE__*/(function (Geometry) {\n function SimpleGeometry() {\n\n Geometry.call(this);\n\n /**\n * @protected\n * @type {GeometryLayout}\n */\n this.layout = GeometryLayout.XY;\n\n /**\n * @protected\n * @type {number}\n */\n this.stride = 2;\n\n /**\n * @protected\n * @type {Array}\n */\n this.flatCoordinates = null;\n\n }\n\n if ( Geometry ) SimpleGeometry.__proto__ = Geometry;\n SimpleGeometry.prototype = Object.create( Geometry && Geometry.prototype );\n SimpleGeometry.prototype.constructor = SimpleGeometry;\n\n /**\n * @inheritDoc\n */\n SimpleGeometry.prototype.computeExtent = function computeExtent (extent) {\n return createOrUpdateFromFlatCoordinates(this.flatCoordinates,\n 0, this.flatCoordinates.length, this.stride, extent);\n };\n\n /**\n * @abstract\n * @return {Array} Coordinates.\n */\n SimpleGeometry.prototype.getCoordinates = function getCoordinates () {\n return abstract();\n };\n\n /**\n * Return the first coordinate of the geometry.\n * @return {import(\"../coordinate.js\").Coordinate} First coordinate.\n * @api\n */\n SimpleGeometry.prototype.getFirstCoordinate = function getFirstCoordinate () {\n return this.flatCoordinates.slice(0, this.stride);\n };\n\n /**\n * @return {Array} Flat coordinates.\n */\n SimpleGeometry.prototype.getFlatCoordinates = function getFlatCoordinates () {\n return this.flatCoordinates;\n };\n\n /**\n * Return the last coordinate of the geometry.\n * @return {import(\"../coordinate.js\").Coordinate} Last point.\n * @api\n */\n SimpleGeometry.prototype.getLastCoordinate = function getLastCoordinate () {\n return this.flatCoordinates.slice(this.flatCoordinates.length - this.stride);\n };\n\n /**\n * Return the {@link module:ol/geom/GeometryLayout layout} of the geometry.\n * @return {GeometryLayout} Layout.\n * @api\n */\n SimpleGeometry.prototype.getLayout = function getLayout () {\n return this.layout;\n };\n\n /**\n * @inheritDoc\n */\n SimpleGeometry.prototype.getSimplifiedGeometry = function getSimplifiedGeometry (squaredTolerance) {\n if (this.simplifiedGeometryRevision != this.getRevision()) {\n clear(this.simplifiedGeometryCache);\n this.simplifiedGeometryMaxMinSquaredTolerance = 0;\n this.simplifiedGeometryRevision = this.getRevision();\n }\n // If squaredTolerance is negative or if we know that simplification will not\n // have any effect then just return this.\n if (squaredTolerance < 0 ||\n (this.simplifiedGeometryMaxMinSquaredTolerance !== 0 &&\n squaredTolerance <= this.simplifiedGeometryMaxMinSquaredTolerance)) {\n return this;\n }\n var key = squaredTolerance.toString();\n if (this.simplifiedGeometryCache.hasOwnProperty(key)) {\n return this.simplifiedGeometryCache[key];\n } else {\n var simplifiedGeometry =\n this.getSimplifiedGeometryInternal(squaredTolerance);\n var simplifiedFlatCoordinates = simplifiedGeometry.getFlatCoordinates();\n if (simplifiedFlatCoordinates.length < this.flatCoordinates.length) {\n this.simplifiedGeometryCache[key] = simplifiedGeometry;\n return simplifiedGeometry;\n } else {\n // Simplification did not actually remove any coordinates. We now know\n // that any calls to getSimplifiedGeometry with a squaredTolerance less\n // than or equal to the current squaredTolerance will also not have any\n // effect. This allows us to short circuit simplification (saving CPU\n // cycles) and prevents the cache of simplified geometries from filling\n // up with useless identical copies of this geometry (saving memory).\n this.simplifiedGeometryMaxMinSquaredTolerance = squaredTolerance;\n return this;\n }\n }\n };\n\n /**\n * @param {number} squaredTolerance Squared tolerance.\n * @return {SimpleGeometry} Simplified geometry.\n * @protected\n */\n SimpleGeometry.prototype.getSimplifiedGeometryInternal = function getSimplifiedGeometryInternal (squaredTolerance) {\n return this;\n };\n\n /**\n * @return {number} Stride.\n */\n SimpleGeometry.prototype.getStride = function getStride () {\n return this.stride;\n };\n\n /**\n * @param {GeometryLayout} layout Layout.\n * @param {Array} flatCoordinates Flat coordinates.\n */\n SimpleGeometry.prototype.setFlatCoordinates = function setFlatCoordinates (layout, flatCoordinates) {\n this.stride = getStrideForLayout(layout);\n this.layout = layout;\n this.flatCoordinates = flatCoordinates;\n };\n\n /**\n * @abstract\n * @param {!Array} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n */\n SimpleGeometry.prototype.setCoordinates = function setCoordinates (coordinates, opt_layout) {\n abstract();\n };\n\n /**\n * @param {GeometryLayout|undefined} layout Layout.\n * @param {Array} coordinates Coordinates.\n * @param {number} nesting Nesting.\n * @protected\n */\n SimpleGeometry.prototype.setLayout = function setLayout (layout, coordinates, nesting) {\n /** @type {number} */\n var stride;\n if (layout) {\n stride = getStrideForLayout(layout);\n } else {\n for (var i = 0; i < nesting; ++i) {\n if (coordinates.length === 0) {\n this.layout = GeometryLayout.XY;\n this.stride = 2;\n return;\n } else {\n coordinates = /** @type {Array} */ (coordinates[0]);\n }\n }\n stride = coordinates.length;\n layout = getLayoutForStride(stride);\n }\n this.layout = layout;\n this.stride = stride;\n };\n\n /**\n * @inheritDoc\n * @api\n */\n SimpleGeometry.prototype.applyTransform = function applyTransform (transformFn) {\n if (this.flatCoordinates) {\n transformFn(this.flatCoordinates, this.flatCoordinates, this.stride);\n this.changed();\n }\n };\n\n /**\n * @inheritDoc\n * @api\n */\n SimpleGeometry.prototype.rotate = function rotate$1 (angle, anchor) {\n var flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n var stride = this.getStride();\n rotate(\n flatCoordinates, 0, flatCoordinates.length,\n stride, angle, anchor, flatCoordinates);\n this.changed();\n }\n };\n\n /**\n * @inheritDoc\n * @api\n */\n SimpleGeometry.prototype.scale = function scale$1 (sx, opt_sy, opt_anchor) {\n var sy = opt_sy;\n if (sy === undefined) {\n sy = sx;\n }\n var anchor = opt_anchor;\n if (!anchor) {\n anchor = getCenter(this.getExtent());\n }\n var flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n var stride = this.getStride();\n scale(\n flatCoordinates, 0, flatCoordinates.length,\n stride, sx, sy, anchor, flatCoordinates);\n this.changed();\n }\n };\n\n /**\n * @inheritDoc\n * @api\n */\n SimpleGeometry.prototype.translate = function translate$1 (deltaX, deltaY) {\n var flatCoordinates = this.getFlatCoordinates();\n if (flatCoordinates) {\n var stride = this.getStride();\n translate(\n flatCoordinates, 0, flatCoordinates.length, stride,\n deltaX, deltaY, flatCoordinates);\n this.changed();\n }\n };\n\n return SimpleGeometry;\n}(Geometry));\n\n\n/**\n * @param {number} stride Stride.\n * @return {GeometryLayout} layout Layout.\n */\nfunction getLayoutForStride(stride) {\n var layout;\n if (stride == 2) {\n layout = GeometryLayout.XY;\n } else if (stride == 3) {\n layout = GeometryLayout.XYZ;\n } else if (stride == 4) {\n layout = GeometryLayout.XYZM;\n }\n return (\n /** @type {GeometryLayout} */ (layout)\n );\n}\n\n\n/**\n * @param {GeometryLayout} layout Layout.\n * @return {number} Stride.\n */\nexport function getStrideForLayout(layout) {\n var stride;\n if (layout == GeometryLayout.XY) {\n stride = 2;\n } else if (layout == GeometryLayout.XYZ || layout == GeometryLayout.XYM) {\n stride = 3;\n } else if (layout == GeometryLayout.XYZM) {\n stride = 4;\n }\n return /** @type {number} */ (stride);\n}\n\n\n/**\n * @param {SimpleGeometry} simpleGeometry Simple geometry.\n * @param {import(\"../transform.js\").Transform} transform Transform.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Transformed flat coordinates.\n */\nexport function transformGeom2D(simpleGeometry, transform, opt_dest) {\n var flatCoordinates = simpleGeometry.getFlatCoordinates();\n if (!flatCoordinates) {\n return null;\n } else {\n var stride = simpleGeometry.getStride();\n return transform2D(\n flatCoordinates, 0, flatCoordinates.length, stride,\n transform, opt_dest);\n }\n}\n\nexport default SimpleGeometry;\n\n//# sourceMappingURL=SimpleGeometry.js.map","/**\n * @module ol/geom/flat/area\n */\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRing(flatCoordinates, offset, end, stride) {\n var twiceArea = 0;\n var x1 = flatCoordinates[end - stride];\n var y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n twiceArea += y1 * x2 - x1 * y2;\n x1 = x2;\n y1 = y2;\n }\n return twiceArea / 2;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRings(flatCoordinates, offset, ends, stride) {\n var area = 0;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n area += linearRing(flatCoordinates, offset, end, stride);\n offset = end;\n }\n return area;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @return {number} Area.\n */\nexport function linearRingss(flatCoordinates, offset, endss, stride) {\n var area = 0;\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n area += linearRings(flatCoordinates, offset, ends, stride);\n offset = ends[ends.length - 1];\n }\n return area;\n}\n\n//# sourceMappingURL=area.js.map","/**\n * @module ol/geom/flat/closest\n */\nimport {lerp, squaredDistance as squaredDx} from '../../math.js';\n\n\n/**\n * Returns the point on the 2D line segment flatCoordinates[offset1] to\n * flatCoordinates[offset2] that is closest to the point (x, y). Extra\n * dimensions are linearly interpolated.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset1 Offset 1.\n * @param {number} offset2 Offset 2.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array} closestPoint Closest point.\n */\nfunction assignClosest(flatCoordinates, offset1, offset2, stride, x, y, closestPoint) {\n var x1 = flatCoordinates[offset1];\n var y1 = flatCoordinates[offset1 + 1];\n var dx = flatCoordinates[offset2] - x1;\n var dy = flatCoordinates[offset2 + 1] - y1;\n var offset;\n if (dx === 0 && dy === 0) {\n offset = offset1;\n } else {\n var t = ((x - x1) * dx + (y - y1) * dy) / (dx * dx + dy * dy);\n if (t > 1) {\n offset = offset2;\n } else if (t > 0) {\n for (var i = 0; i < stride; ++i) {\n closestPoint[i] = lerp(flatCoordinates[offset1 + i],\n flatCoordinates[offset2 + i], t);\n }\n closestPoint.length = stride;\n return;\n } else {\n offset = offset1;\n }\n }\n for (var i$1 = 0; i$1 < stride; ++i$1) {\n closestPoint[i$1] = flatCoordinates[offset + i$1];\n }\n closestPoint.length = stride;\n}\n\n\n/**\n * Return the squared of the largest distance between any pair of consecutive\n * coordinates.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function maxSquaredDelta(flatCoordinates, offset, end, stride, max) {\n var x1 = flatCoordinates[offset];\n var y1 = flatCoordinates[offset + 1];\n for (offset += stride; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n var squaredDelta = squaredDx(x1, y1, x2, y2);\n if (squaredDelta > max) {\n max = squaredDelta;\n }\n x1 = x2;\n y1 = y2;\n }\n return max;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function arrayMaxSquaredDelta(flatCoordinates, offset, ends, stride, max) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n max = maxSquaredDelta(\n flatCoordinates, offset, end, stride, max);\n offset = end;\n }\n return max;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} max Max squared delta.\n * @return {number} Max squared delta.\n */\nexport function multiArrayMaxSquaredDelta(flatCoordinates, offset, endss, stride, max) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n max = arrayMaxSquaredDelta(\n flatCoordinates, offset, ends, stride, max);\n offset = ends[ends.length - 1];\n }\n return max;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} maxDelta Max delta.\n * @param {boolean} isRing Is ring.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestPoint(flatCoordinates, offset, end,\n stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance,\n opt_tmpPoint) {\n if (offset == end) {\n return minSquaredDistance;\n }\n var i, squaredDistance;\n if (maxDelta === 0) {\n // All points are identical, so just test the first point.\n squaredDistance = squaredDx(\n x, y, flatCoordinates[offset], flatCoordinates[offset + 1]);\n if (squaredDistance < minSquaredDistance) {\n for (i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[offset + i];\n }\n closestPoint.length = stride;\n return squaredDistance;\n } else {\n return minSquaredDistance;\n }\n }\n var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n var index = offset + stride;\n while (index < end) {\n assignClosest(\n flatCoordinates, index - stride, index, stride, x, y, tmpPoint);\n squaredDistance = squaredDx(x, y, tmpPoint[0], tmpPoint[1]);\n if (squaredDistance < minSquaredDistance) {\n minSquaredDistance = squaredDistance;\n for (i = 0; i < stride; ++i) {\n closestPoint[i] = tmpPoint[i];\n }\n closestPoint.length = stride;\n index += stride;\n } else {\n // Skip ahead multiple points, because we know that all the skipped\n // points cannot be any closer than the closest point we have found so\n // far. We know this because we know how close the current point is, how\n // close the closest point we have found so far is, and the maximum\n // distance between consecutive points. For example, if we're currently\n // at distance 10, the best we've found so far is 3, and that the maximum\n // distance between consecutive points is 2, then we'll need to skip at\n // least (10 - 3) / 2 == 3 (rounded down) points to have any chance of\n // finding a closer point. We use Math.max(..., 1) to ensure that we\n // always advance at least one point, to avoid an infinite loop.\n index += stride * Math.max(\n ((Math.sqrt(squaredDistance) -\n Math.sqrt(minSquaredDistance)) / maxDelta) | 0, 1);\n }\n }\n if (isRing) {\n // Check the closing segment.\n assignClosest(\n flatCoordinates, end - stride, offset, stride, x, y, tmpPoint);\n squaredDistance = squaredDx(x, y, tmpPoint[0], tmpPoint[1]);\n if (squaredDistance < minSquaredDistance) {\n minSquaredDistance = squaredDistance;\n for (i = 0; i < stride; ++i) {\n closestPoint[i] = tmpPoint[i];\n }\n closestPoint.length = stride;\n }\n }\n return minSquaredDistance;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} maxDelta Max delta.\n * @param {boolean} isRing Is ring.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestArrayPoint(flatCoordinates, offset, ends,\n stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance,\n opt_tmpPoint) {\n var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n minSquaredDistance = assignClosestPoint(\n flatCoordinates, offset, end, stride,\n maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint);\n offset = end;\n }\n return minSquaredDistance;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} maxDelta Max delta.\n * @param {boolean} isRing Is ring.\n * @param {number} x X.\n * @param {number} y Y.\n * @param {Array} closestPoint Closest point.\n * @param {number} minSquaredDistance Minimum squared distance.\n * @param {Array=} opt_tmpPoint Temporary point object.\n * @return {number} Minimum squared distance.\n */\nexport function assignClosestMultiArrayPoint(flatCoordinates, offset,\n endss, stride, maxDelta, isRing, x, y, closestPoint, minSquaredDistance,\n opt_tmpPoint) {\n var tmpPoint = opt_tmpPoint ? opt_tmpPoint : [NaN, NaN];\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n minSquaredDistance = assignClosestArrayPoint(\n flatCoordinates, offset, ends, stride,\n maxDelta, isRing, x, y, closestPoint, minSquaredDistance, tmpPoint);\n offset = ends[ends.length - 1];\n }\n return minSquaredDistance;\n}\n\n//# sourceMappingURL=closest.js.map","/**\n * @module ol/geom/flat/deflate\n */\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {number} stride Stride.\n * @return {number} offset Offset.\n */\nexport function deflateCoordinate(flatCoordinates, offset, coordinate, stride) {\n for (var i = 0, ii = coordinate.length; i < ii; ++i) {\n flatCoordinates[offset++] = coordinate[i];\n }\n return offset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} coordinates Coordinates.\n * @param {number} stride Stride.\n * @return {number} offset Offset.\n */\nexport function deflateCoordinates(flatCoordinates, offset, coordinates, stride) {\n for (var i = 0, ii = coordinates.length; i < ii; ++i) {\n var coordinate = coordinates[i];\n for (var j = 0; j < stride; ++j) {\n flatCoordinates[offset++] = coordinate[j];\n }\n }\n return offset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} coordinatess Coordinatess.\n * @param {number} stride Stride.\n * @param {Array=} opt_ends Ends.\n * @return {Array} Ends.\n */\nexport function deflateCoordinatesArray(flatCoordinates, offset, coordinatess, stride, opt_ends) {\n var ends = opt_ends ? opt_ends : [];\n var i = 0;\n for (var j = 0, jj = coordinatess.length; j < jj; ++j) {\n var end = deflateCoordinates(\n flatCoordinates, offset, coordinatess[j], stride);\n ends[i++] = end;\n offset = end;\n }\n ends.length = i;\n return ends;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>>} coordinatesss Coordinatesss.\n * @param {number} stride Stride.\n * @param {Array>=} opt_endss Endss.\n * @return {Array>} Endss.\n */\nexport function deflateMultiCoordinatesArray(flatCoordinates, offset, coordinatesss, stride, opt_endss) {\n var endss = opt_endss ? opt_endss : [];\n var i = 0;\n for (var j = 0, jj = coordinatesss.length; j < jj; ++j) {\n var ends = deflateCoordinatesArray(\n flatCoordinates, offset, coordinatesss[j], stride, endss[i]);\n endss[i++] = ends;\n offset = ends[ends.length - 1];\n }\n endss.length = i;\n return endss;\n}\n\n//# sourceMappingURL=deflate.js.map","/**\n * @module ol/geom/flat/inflate\n */\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {Array=} opt_coordinates Coordinates.\n * @return {Array} Coordinates.\n */\nexport function inflateCoordinates(flatCoordinates, offset, end, stride, opt_coordinates) {\n var coordinates = opt_coordinates !== undefined ? opt_coordinates : [];\n var i = 0;\n for (var j = offset; j < end; j += stride) {\n coordinates[i++] = flatCoordinates.slice(j, j + stride);\n }\n coordinates.length = i;\n return coordinates;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {Array>=} opt_coordinatess Coordinatess.\n * @return {Array>} Coordinatess.\n */\nexport function inflateCoordinatesArray(flatCoordinates, offset, ends, stride, opt_coordinatess) {\n var coordinatess = opt_coordinatess !== undefined ? opt_coordinatess : [];\n var i = 0;\n for (var j = 0, jj = ends.length; j < jj; ++j) {\n var end = ends[j];\n coordinatess[i++] = inflateCoordinates(\n flatCoordinates, offset, end, stride, coordinatess[i]);\n offset = end;\n }\n coordinatess.length = i;\n return coordinatess;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {Array>>=} opt_coordinatesss\n * Coordinatesss.\n * @return {Array>>} Coordinatesss.\n */\nexport function inflateMultiCoordinatesArray(flatCoordinates, offset, endss, stride, opt_coordinatesss) {\n var coordinatesss = opt_coordinatesss !== undefined ? opt_coordinatesss : [];\n var i = 0;\n for (var j = 0, jj = endss.length; j < jj; ++j) {\n var ends = endss[j];\n coordinatesss[i++] = inflateCoordinatesArray(\n flatCoordinates, offset, ends, stride, coordinatesss[i]);\n offset = ends[ends.length - 1];\n }\n coordinatesss.length = i;\n return coordinatesss;\n}\n\n//# sourceMappingURL=inflate.js.map","/**\n * @module ol/geom/flat/simplify\n */\n// Based on simplify-js https://github.com/mourner/simplify-js\n// Copyright (c) 2012, Vladimir Agafonkin\n// All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are met:\n//\n// 1. Redistributions of source code must retain the above copyright notice,\n// this list of conditions and the following disclaimer.\n//\n// 2. Redistributions in binary form must reproduce the above copyright\n// notice, this list of conditions and the following disclaimer in the\n// documentation and/or other materials provided with the distribution.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\n// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\n// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\n// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n// POSSIBILITY OF SUCH DAMAGE.\n\nimport {squaredSegmentDistance, squaredDistance} from '../../math.js';\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {boolean} highQuality Highest quality.\n * @param {Array=} opt_simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @return {Array} Simplified line string.\n */\nexport function simplifyLineString(flatCoordinates, offset, end,\n stride, squaredTolerance, highQuality, opt_simplifiedFlatCoordinates) {\n var simplifiedFlatCoordinates = opt_simplifiedFlatCoordinates !== undefined ?\n opt_simplifiedFlatCoordinates : [];\n if (!highQuality) {\n end = radialDistance(flatCoordinates, offset, end,\n stride, squaredTolerance,\n simplifiedFlatCoordinates, 0);\n flatCoordinates = simplifiedFlatCoordinates;\n offset = 0;\n stride = 2;\n }\n simplifiedFlatCoordinates.length = douglasPeucker(\n flatCoordinates, offset, end, stride, squaredTolerance,\n simplifiedFlatCoordinates, 0);\n return simplifiedFlatCoordinates;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function douglasPeucker(flatCoordinates, offset, end,\n stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset) {\n var n = (end - offset) / stride;\n if (n < 3) {\n for (; offset < end; offset += stride) {\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + 1];\n }\n return simplifiedOffset;\n }\n /** @type {Array} */\n var markers = new Array(n);\n markers[0] = 1;\n markers[n - 1] = 1;\n /** @type {Array} */\n var stack = [offset, end - stride];\n var index = 0;\n while (stack.length > 0) {\n var last = stack.pop();\n var first = stack.pop();\n var maxSquaredDistance = 0;\n var x1 = flatCoordinates[first];\n var y1 = flatCoordinates[first + 1];\n var x2 = flatCoordinates[last];\n var y2 = flatCoordinates[last + 1];\n for (var i = first + stride; i < last; i += stride) {\n var x = flatCoordinates[i];\n var y = flatCoordinates[i + 1];\n var squaredDistance = squaredSegmentDistance(\n x, y, x1, y1, x2, y2);\n if (squaredDistance > maxSquaredDistance) {\n index = i;\n maxSquaredDistance = squaredDistance;\n }\n }\n if (maxSquaredDistance > squaredTolerance) {\n markers[(index - offset) / stride] = 1;\n if (first + stride < index) {\n stack.push(first, index);\n }\n if (index + stride < last) {\n stack.push(index, last);\n }\n }\n }\n for (var i$1 = 0; i$1 < n; ++i$1) {\n if (markers[i$1]) {\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + i$1 * stride];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + i$1 * stride + 1];\n }\n }\n return simplifiedOffset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array} simplifiedEnds Simplified ends.\n * @return {number} Simplified offset.\n */\nexport function douglasPeuckerArray(flatCoordinates, offset,\n ends, stride, squaredTolerance, simplifiedFlatCoordinates,\n simplifiedOffset, simplifiedEnds) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n simplifiedOffset = douglasPeucker(\n flatCoordinates, offset, end, stride, squaredTolerance,\n simplifiedFlatCoordinates, simplifiedOffset);\n simplifiedEnds.push(simplifiedOffset);\n offset = end;\n }\n return simplifiedOffset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array>} simplifiedEndss Simplified endss.\n * @return {number} Simplified offset.\n */\nexport function douglasPeuckerMultiArray(\n flatCoordinates, offset, endss, stride, squaredTolerance,\n simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n var simplifiedEnds = [];\n simplifiedOffset = douglasPeuckerArray(\n flatCoordinates, offset, ends, stride, squaredTolerance,\n simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);\n simplifiedEndss.push(simplifiedEnds);\n offset = ends[ends.length - 1];\n }\n return simplifiedOffset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function radialDistance(flatCoordinates, offset, end,\n stride, squaredTolerance, simplifiedFlatCoordinates, simplifiedOffset) {\n if (end <= offset + stride) {\n // zero or one point, no simplification possible, so copy and return\n for (; offset < end; offset += stride) {\n simplifiedFlatCoordinates[simplifiedOffset++] = flatCoordinates[offset];\n simplifiedFlatCoordinates[simplifiedOffset++] =\n flatCoordinates[offset + 1];\n }\n return simplifiedOffset;\n }\n var x1 = flatCoordinates[offset];\n var y1 = flatCoordinates[offset + 1];\n // copy first point\n simplifiedFlatCoordinates[simplifiedOffset++] = x1;\n simplifiedFlatCoordinates[simplifiedOffset++] = y1;\n var x2 = x1;\n var y2 = y1;\n for (offset += stride; offset < end; offset += stride) {\n x2 = flatCoordinates[offset];\n y2 = flatCoordinates[offset + 1];\n if (squaredDistance(x1, y1, x2, y2) > squaredTolerance) {\n // copy point at offset\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n x1 = x2;\n y1 = y2;\n }\n }\n if (x2 != x1 || y2 != y1) {\n // copy last point\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n }\n return simplifiedOffset;\n}\n\n\n/**\n * @param {number} value Value.\n * @param {number} tolerance Tolerance.\n * @return {number} Rounded value.\n */\nexport function snap(value, tolerance) {\n return tolerance * Math.round(value / tolerance);\n}\n\n\n/**\n * Simplifies a line string using an algorithm designed by Tim Schaub.\n * Coordinates are snapped to the nearest value in a virtual grid and\n * consecutive duplicate coordinates are discarded. This effectively preserves\n * topology as the simplification of any subsection of a line string is\n * independent of the rest of the line string. This means that, for examples,\n * the common edge between two polygons will be simplified to the same line\n * string independently in both polygons. This implementation uses a single\n * pass over the coordinates and eliminates intermediate collinear points.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @return {number} Simplified offset.\n */\nexport function quantize(flatCoordinates, offset, end, stride,\n tolerance, simplifiedFlatCoordinates, simplifiedOffset) {\n // do nothing if the line is empty\n if (offset == end) {\n return simplifiedOffset;\n }\n // snap the first coordinate (P1)\n var x1 = snap(flatCoordinates[offset], tolerance);\n var y1 = snap(flatCoordinates[offset + 1], tolerance);\n offset += stride;\n // add the first coordinate to the output\n simplifiedFlatCoordinates[simplifiedOffset++] = x1;\n simplifiedFlatCoordinates[simplifiedOffset++] = y1;\n // find the next coordinate that does not snap to the same value as the first\n // coordinate (P2)\n var x2, y2;\n do {\n x2 = snap(flatCoordinates[offset], tolerance);\n y2 = snap(flatCoordinates[offset + 1], tolerance);\n offset += stride;\n if (offset == end) {\n // all coordinates snap to the same value, the line collapses to a point\n // push the last snapped value anyway to ensure that the output contains\n // at least two points\n // FIXME should we really return at least two points anyway?\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n return simplifiedOffset;\n }\n } while (x2 == x1 && y2 == y1);\n while (offset < end) {\n // snap the next coordinate (P3)\n var x3 = snap(flatCoordinates[offset], tolerance);\n var y3 = snap(flatCoordinates[offset + 1], tolerance);\n offset += stride;\n // skip P3 if it is equal to P2\n if (x3 == x2 && y3 == y2) {\n continue;\n }\n // calculate the delta between P1 and P2\n var dx1 = x2 - x1;\n var dy1 = y2 - y1;\n // calculate the delta between P3 and P1\n var dx2 = x3 - x1;\n var dy2 = y3 - y1;\n // if P1, P2, and P3 are colinear and P3 is further from P1 than P2 is from\n // P1 in the same direction then P2 is on the straight line between P1 and\n // P3\n if ((dx1 * dy2 == dy1 * dx2) &&\n ((dx1 < 0 && dx2 < dx1) || dx1 == dx2 || (dx1 > 0 && dx2 > dx1)) &&\n ((dy1 < 0 && dy2 < dy1) || dy1 == dy2 || (dy1 > 0 && dy2 > dy1))) {\n // discard P2 and set P2 = P3\n x2 = x3;\n y2 = y3;\n continue;\n }\n // either P1, P2, and P3 are not colinear, or they are colinear but P3 is\n // between P3 and P1 or on the opposite half of the line to P2. add P2,\n // and continue with P1 = P2 and P2 = P3\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n x1 = x2;\n y1 = y2;\n x2 = x3;\n y2 = y3;\n }\n // add the last point (P2)\n simplifiedFlatCoordinates[simplifiedOffset++] = x2;\n simplifiedFlatCoordinates[simplifiedOffset++] = y2;\n return simplifiedOffset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array} simplifiedEnds Simplified ends.\n * @return {number} Simplified offset.\n */\nexport function quantizeArray(\n flatCoordinates, offset, ends, stride,\n tolerance,\n simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n simplifiedOffset = quantize(\n flatCoordinates, offset, end, stride,\n tolerance,\n simplifiedFlatCoordinates, simplifiedOffset);\n simplifiedEnds.push(simplifiedOffset);\n offset = end;\n }\n return simplifiedOffset;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} tolerance Tolerance.\n * @param {Array} simplifiedFlatCoordinates Simplified flat\n * coordinates.\n * @param {number} simplifiedOffset Simplified offset.\n * @param {Array>} simplifiedEndss Simplified endss.\n * @return {number} Simplified offset.\n */\nexport function quantizeMultiArray(\n flatCoordinates, offset, endss, stride,\n tolerance,\n simplifiedFlatCoordinates, simplifiedOffset, simplifiedEndss) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n var simplifiedEnds = [];\n simplifiedOffset = quantizeArray(\n flatCoordinates, offset, ends, stride,\n tolerance,\n simplifiedFlatCoordinates, simplifiedOffset, simplifiedEnds);\n simplifiedEndss.push(simplifiedEnds);\n offset = ends[ends.length - 1];\n }\n return simplifiedOffset;\n}\n\n//# sourceMappingURL=simplify.js.map","/**\n * @module ol/geom/LinearRing\n */\nimport {closestSquaredDistanceXY} from '../extent.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {linearRing as linearRingArea} from './flat/area.js';\nimport {assignClosestPoint, maxSquaredDelta} from './flat/closest.js';\nimport {deflateCoordinates} from './flat/deflate.js';\nimport {inflateCoordinates} from './flat/inflate.js';\nimport {douglasPeucker} from './flat/simplify.js';\n\n/**\n * @classdesc\n * Linear ring geometry. Only used as part of polygon; cannot be rendered\n * on its own.\n *\n * @api\n */\nvar LinearRing = /*@__PURE__*/(function (SimpleGeometry) {\n function LinearRing(coordinates, opt_layout) {\n\n SimpleGeometry.call(this);\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {\n this.setFlatCoordinates(opt_layout, /** @type {Array} */ (coordinates));\n } else {\n this.setCoordinates(/** @type {Array} */ (coordinates), opt_layout);\n }\n\n }\n\n if ( SimpleGeometry ) LinearRing.__proto__ = SimpleGeometry;\n LinearRing.prototype = Object.create( SimpleGeometry && SimpleGeometry.prototype );\n LinearRing.prototype.constructor = LinearRing;\n\n /**\n * Make a complete copy of the geometry.\n * @return {!LinearRing} Clone.\n * @override\n * @api\n */\n LinearRing.prototype.clone = function clone () {\n return new LinearRing(this.flatCoordinates.slice(), this.layout);\n };\n\n /**\n * @inheritDoc\n */\n LinearRing.prototype.closestPointXY = function closestPointXY (x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(maxSquaredDelta(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, 0));\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestPoint(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,\n this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);\n };\n\n /**\n * Return the area of the linear ring on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n LinearRing.prototype.getArea = function getArea () {\n return linearRingArea(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);\n };\n\n /**\n * Return the coordinates of the linear ring.\n * @return {Array} Coordinates.\n * @override\n * @api\n */\n LinearRing.prototype.getCoordinates = function getCoordinates () {\n return inflateCoordinates(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);\n };\n\n /**\n * @inheritDoc\n */\n LinearRing.prototype.getSimplifiedGeometryInternal = function getSimplifiedGeometryInternal (squaredTolerance) {\n var simplifiedFlatCoordinates = [];\n simplifiedFlatCoordinates.length = douglasPeucker(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,\n squaredTolerance, simplifiedFlatCoordinates, 0);\n return new LinearRing(simplifiedFlatCoordinates, GeometryLayout.XY);\n };\n\n /**\n * @inheritDoc\n * @api\n */\n LinearRing.prototype.getType = function getType () {\n return GeometryType.LINEAR_RING;\n };\n\n /**\n * @inheritDoc\n */\n LinearRing.prototype.intersectsExtent = function intersectsExtent (extent) {\n return false;\n };\n\n /**\n * Set the coordinates of the linear ring.\n * @param {!Array} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n * @override\n * @api\n */\n LinearRing.prototype.setCoordinates = function setCoordinates (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 1);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinates(\n this.flatCoordinates, 0, coordinates, this.stride);\n this.changed();\n };\n\n return LinearRing;\n}(SimpleGeometry));\n\n\nexport default LinearRing;\n\n//# sourceMappingURL=LinearRing.js.map","/**\n * @module ol/geom/Point\n */\nimport {createOrUpdateFromCoordinate, containsXY} from '../extent.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {deflateCoordinate} from './flat/deflate.js';\nimport {squaredDistance as squaredDx} from '../math.js';\n\n/**\n * @classdesc\n * Point geometry.\n *\n * @api\n */\nvar Point = /*@__PURE__*/(function (SimpleGeometry) {\n function Point(coordinates, opt_layout) {\n SimpleGeometry.call(this);\n this.setCoordinates(coordinates, opt_layout);\n }\n\n if ( SimpleGeometry ) Point.__proto__ = SimpleGeometry;\n Point.prototype = Object.create( SimpleGeometry && SimpleGeometry.prototype );\n Point.prototype.constructor = Point;\n\n /**\n * Make a complete copy of the geometry.\n * @return {!Point} Clone.\n * @override\n * @api\n */\n Point.prototype.clone = function clone () {\n var point = new Point(this.flatCoordinates.slice(), this.layout);\n return point;\n };\n\n /**\n * @inheritDoc\n */\n Point.prototype.closestPointXY = function closestPointXY (x, y, closestPoint, minSquaredDistance) {\n var flatCoordinates = this.flatCoordinates;\n var squaredDistance = squaredDx(x, y, flatCoordinates[0], flatCoordinates[1]);\n if (squaredDistance < minSquaredDistance) {\n var stride = this.stride;\n for (var i = 0; i < stride; ++i) {\n closestPoint[i] = flatCoordinates[i];\n }\n closestPoint.length = stride;\n return squaredDistance;\n } else {\n return minSquaredDistance;\n }\n };\n\n /**\n * Return the coordinate of the point.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinates.\n * @override\n * @api\n */\n Point.prototype.getCoordinates = function getCoordinates () {\n return !this.flatCoordinates ? [] : this.flatCoordinates.slice();\n };\n\n /**\n * @inheritDoc\n */\n Point.prototype.computeExtent = function computeExtent (extent) {\n return createOrUpdateFromCoordinate(this.flatCoordinates, extent);\n };\n\n /**\n * @inheritDoc\n * @api\n */\n Point.prototype.getType = function getType () {\n return GeometryType.POINT;\n };\n\n /**\n * @inheritDoc\n * @api\n */\n Point.prototype.intersectsExtent = function intersectsExtent (extent) {\n return containsXY(extent, this.flatCoordinates[0], this.flatCoordinates[1]);\n };\n\n /**\n * @inheritDoc\n * @api\n */\n Point.prototype.setCoordinates = function setCoordinates (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 0);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinate(\n this.flatCoordinates, 0, coordinates, this.stride);\n this.changed();\n };\n\n return Point;\n}(SimpleGeometry));\n\n\nexport default Point;\n\n//# sourceMappingURL=Point.js.map","/**\n * @module ol/geom/flat/contains\n */\nimport {forEachCorner} from '../../extent.js';\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} Contains extent.\n */\nexport function linearRingContainsExtent(flatCoordinates, offset, end, stride, extent) {\n var outside = forEachCorner(extent,\n /**\n * @param {import(\"../../coordinate.js\").Coordinate} coordinate Coordinate.\n * @return {boolean} Contains (x, y).\n */\n function(coordinate) {\n return !linearRingContainsXY(flatCoordinates, offset, end, stride, coordinate[0], coordinate[1]);\n });\n return !outside;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\nexport function linearRingContainsXY(flatCoordinates, offset, end, stride, x, y) {\n // http://geomalgorithms.com/a03-_inclusion.html\n // Copyright 2000 softSurfer, 2012 Dan Sunday\n // This code may be freely used and modified for any purpose\n // providing that this copyright notice is included with it.\n // SoftSurfer makes no warranty for this code, and cannot be held\n // liable for any real or imagined damage resulting from its use.\n // Users of this code must verify correctness for their application.\n var wn = 0;\n var x1 = flatCoordinates[end - stride];\n var y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n if (y1 <= y) {\n if (y2 > y && ((x2 - x1) * (y - y1)) - ((x - x1) * (y2 - y1)) > 0) {\n wn++;\n }\n } else if (y2 <= y && ((x2 - x1) * (y - y1)) - ((x - x1) * (y2 - y1)) < 0) {\n wn--;\n }\n x1 = x2;\n y1 = y2;\n }\n return wn !== 0;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\nexport function linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y) {\n if (ends.length === 0) {\n return false;\n }\n if (!linearRingContainsXY(flatCoordinates, offset, ends[0], stride, x, y)) {\n return false;\n }\n for (var i = 1, ii = ends.length; i < ii; ++i) {\n if (linearRingContainsXY(flatCoordinates, ends[i - 1], ends[i], stride, x, y)) {\n return false;\n }\n }\n return true;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {number} x X.\n * @param {number} y Y.\n * @return {boolean} Contains (x, y).\n */\nexport function linearRingssContainsXY(flatCoordinates, offset, endss, stride, x, y) {\n if (endss.length === 0) {\n return false;\n }\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n if (linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y)) {\n return true;\n }\n offset = ends[ends.length - 1];\n }\n return false;\n}\n\n//# sourceMappingURL=contains.js.map","/**\n * @module ol/geom/flat/interiorpoint\n */\nimport {numberSafeCompareFunction} from '../../array.js';\nimport {linearRingsContainsXY} from './contains.js';\n\n\n/**\n * Calculates a point that is likely to lie in the interior of the linear rings.\n * Inspired by JTS's com.vividsolutions.jts.geom.Geometry#getInteriorPoint.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {Array} flatCenters Flat centers.\n * @param {number} flatCentersOffset Flat center offset.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Destination point as XYM coordinate, where M is the\n * length of the horizontal intersection that the point belongs to.\n */\nexport function getInteriorPointOfArray(flatCoordinates, offset,\n ends, stride, flatCenters, flatCentersOffset, opt_dest) {\n var i, ii, x, x1, x2, y1, y2;\n var y = flatCenters[flatCentersOffset + 1];\n /** @type {Array} */\n var intersections = [];\n // Calculate intersections with the horizontal line\n for (var r = 0, rr = ends.length; r < rr; ++r) {\n var end = ends[r];\n x1 = flatCoordinates[end - stride];\n y1 = flatCoordinates[end - stride + 1];\n for (i = offset; i < end; i += stride) {\n x2 = flatCoordinates[i];\n y2 = flatCoordinates[i + 1];\n if ((y <= y1 && y2 <= y) || (y1 <= y && y <= y2)) {\n x = (y - y1) / (y2 - y1) * (x2 - x1) + x1;\n intersections.push(x);\n }\n x1 = x2;\n y1 = y2;\n }\n }\n // Find the longest segment of the horizontal line that has its center point\n // inside the linear ring.\n var pointX = NaN;\n var maxSegmentLength = -Infinity;\n intersections.sort(numberSafeCompareFunction);\n x1 = intersections[0];\n for (i = 1, ii = intersections.length; i < ii; ++i) {\n x2 = intersections[i];\n var segmentLength = Math.abs(x2 - x1);\n if (segmentLength > maxSegmentLength) {\n x = (x1 + x2) / 2;\n if (linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y)) {\n pointX = x;\n maxSegmentLength = segmentLength;\n }\n }\n x1 = x2;\n }\n if (isNaN(pointX)) {\n // There is no horizontal line that has its center point inside the linear\n // ring. Use the center of the the linear ring's extent.\n pointX = flatCenters[flatCentersOffset];\n }\n if (opt_dest) {\n opt_dest.push(pointX, y, maxSegmentLength);\n return opt_dest;\n } else {\n return [pointX, y, maxSegmentLength];\n }\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {Array} flatCenters Flat centers.\n * @return {Array} Interior points as XYM coordinates, where M is the\n * length of the horizontal intersection that the point belongs to.\n */\nexport function getInteriorPointsOfMultiArray(flatCoordinates, offset, endss, stride, flatCenters) {\n var interiorPoints = [];\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n interiorPoints = getInteriorPointOfArray(flatCoordinates,\n offset, ends, stride, flatCenters, 2 * i, interiorPoints);\n offset = ends[ends.length - 1];\n }\n return interiorPoints;\n}\n\n//# sourceMappingURL=interiorpoint.js.map","/**\n * @module ol/geom/flat/segments\n */\n\n\n/**\n * This function calls `callback` for each segment of the flat coordinates\n * array. If the callback returns a truthy value the function returns that\n * value immediately. Otherwise the function returns `false`.\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {function(this: S, import(\"../../coordinate.js\").Coordinate, import(\"../../coordinate.js\").Coordinate): T} callback Function\n * called for each segment.\n * @param {S=} opt_this The object to be used as the value of 'this'\n * within callback.\n * @return {T|boolean} Value.\n * @template T,S\n */\nexport function forEach(flatCoordinates, offset, end, stride, callback, opt_this) {\n var point1 = [flatCoordinates[offset], flatCoordinates[offset + 1]];\n var point2 = [];\n var ret;\n for (; (offset + stride) < end; offset += stride) {\n point2[0] = flatCoordinates[offset + stride];\n point2[1] = flatCoordinates[offset + stride + 1];\n ret = callback.call(opt_this, point1, point2);\n if (ret) {\n return ret;\n }\n point1[0] = point2[0];\n point1[1] = point2[1];\n }\n return false;\n}\n\n//# sourceMappingURL=segments.js.map","/**\n * @module ol/geom/flat/intersectsextent\n */\nimport {containsExtent, createEmpty, extendFlatCoordinates, intersects, intersectsSegment} from '../../extent.js';\nimport {linearRingContainsXY, linearRingContainsExtent} from './contains.js';\nimport {forEach as forEachSegment} from './segments.js';\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLineString(flatCoordinates, offset, end, stride, extent) {\n var coordinatesExtent = extendFlatCoordinates(\n createEmpty(), flatCoordinates, offset, end, stride);\n if (!intersects(extent, coordinatesExtent)) {\n return false;\n }\n if (containsExtent(extent, coordinatesExtent)) {\n return true;\n }\n if (coordinatesExtent[0] >= extent[0] &&\n coordinatesExtent[2] <= extent[2]) {\n return true;\n }\n if (coordinatesExtent[1] >= extent[1] &&\n coordinatesExtent[3] <= extent[3]) {\n return true;\n }\n return forEachSegment(flatCoordinates, offset, end, stride,\n /**\n * @param {import(\"../../coordinate.js\").Coordinate} point1 Start point.\n * @param {import(\"../../coordinate.js\").Coordinate} point2 End point.\n * @return {boolean} `true` if the segment and the extent intersect,\n * `false` otherwise.\n */\n function(point1, point2) {\n return intersectsSegment(extent, point1, point2);\n });\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLineStringArray(flatCoordinates, offset, ends, stride, extent) {\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n if (intersectsLineString(\n flatCoordinates, offset, ends[i], stride, extent)) {\n return true;\n }\n offset = ends[i];\n }\n return false;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLinearRing(flatCoordinates, offset, end, stride, extent) {\n if (intersectsLineString(\n flatCoordinates, offset, end, stride, extent)) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[0], extent[1])) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[0], extent[3])) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[2], extent[1])) {\n return true;\n }\n if (linearRingContainsXY(flatCoordinates, offset, end, stride, extent[2], extent[3])) {\n return true;\n }\n return false;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent) {\n if (!intersectsLinearRing(\n flatCoordinates, offset, ends[0], stride, extent)) {\n return false;\n }\n if (ends.length === 1) {\n return true;\n }\n for (var i = 1, ii = ends.length; i < ii; ++i) {\n if (linearRingContainsExtent(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {\n if (!intersectsLineString(flatCoordinates, ends[i - 1], ends[i], stride, extent)) {\n return false;\n }\n }\n }\n return true;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Endss.\n * @param {number} stride Stride.\n * @param {import(\"../../extent.js\").Extent} extent Extent.\n * @return {boolean} True if the geometry and the extent intersect.\n */\nexport function intersectsLinearRingMultiArray(flatCoordinates, offset, endss, stride, extent) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n var ends = endss[i];\n if (intersectsLinearRingArray(\n flatCoordinates, offset, ends, stride, extent)) {\n return true;\n }\n offset = ends[ends.length - 1];\n }\n return false;\n}\n\n//# sourceMappingURL=intersectsextent.js.map","/**\n * @module ol/geom/flat/reverse\n */\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n */\nexport function coordinates(flatCoordinates, offset, end, stride) {\n while (offset < end - stride) {\n for (var i = 0; i < stride; ++i) {\n var tmp = flatCoordinates[offset + i];\n flatCoordinates[offset + i] = flatCoordinates[end - stride + i];\n flatCoordinates[end - stride + i] = tmp;\n }\n offset += stride;\n end -= stride;\n }\n}\n\n//# sourceMappingURL=reverse.js.map","/**\n * @module ol/geom/flat/orient\n */\nimport {coordinates as reverseCoordinates} from './reverse.js';\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {boolean} Is clockwise.\n */\nexport function linearRingIsClockwise(flatCoordinates, offset, end, stride) {\n // http://tinyurl.com/clockwise-method\n // https://github.com/OSGeo/gdal/blob/trunk/gdal/ogr/ogrlinearring.cpp\n var edge = 0;\n var x1 = flatCoordinates[end - stride];\n var y1 = flatCoordinates[end - stride + 1];\n for (; offset < end; offset += stride) {\n var x2 = flatCoordinates[offset];\n var y2 = flatCoordinates[offset + 1];\n edge += (x2 - x1) * (y2 + y1);\n x1 = x2;\n y1 = y2;\n }\n return edge > 0;\n}\n\n\n/**\n * Determines if linear rings are oriented. By default, left-hand orientation\n * is tested (first ring must be clockwise, remaining rings counter-clockwise).\n * To test for right-hand orientation, use the `opt_right` argument.\n *\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Array of end indexes.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Test for right-hand orientation\n * (counter-clockwise exterior ring and clockwise interior rings).\n * @return {boolean} Rings are correctly oriented.\n */\nexport function linearRingIsOriented(flatCoordinates, offset, ends, stride, opt_right) {\n var right = opt_right !== undefined ? opt_right : false;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n var isClockwise = linearRingIsClockwise(\n flatCoordinates, offset, end, stride);\n if (i === 0) {\n if ((right && isClockwise) || (!right && !isClockwise)) {\n return false;\n }\n } else {\n if ((right && !isClockwise) || (!right && isClockwise)) {\n return false;\n }\n }\n offset = end;\n }\n return true;\n}\n\n\n/**\n * Determines if linear rings are oriented. By default, left-hand orientation\n * is tested (first ring must be clockwise, remaining rings counter-clockwise).\n * To test for right-hand orientation, use the `opt_right` argument.\n *\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Array of array of end indexes.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Test for right-hand orientation\n * (counter-clockwise exterior ring and clockwise interior rings).\n * @return {boolean} Rings are correctly oriented.\n */\nexport function linearRingsAreOriented(flatCoordinates, offset, endss, stride, opt_right) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n if (!linearRingIsOriented(\n flatCoordinates, offset, endss[i], stride, opt_right)) {\n return false;\n }\n }\n return true;\n}\n\n\n/**\n * Orient coordinates in a flat array of linear rings. By default, rings\n * are oriented following the left-hand rule (clockwise for exterior and\n * counter-clockwise for interior rings). To orient according to the\n * right-hand rule, use the `opt_right` argument.\n *\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Follow the right-hand rule for orientation.\n * @return {number} End.\n */\nexport function orientLinearRings(flatCoordinates, offset, ends, stride, opt_right) {\n var right = opt_right !== undefined ? opt_right : false;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n var isClockwise = linearRingIsClockwise(\n flatCoordinates, offset, end, stride);\n var reverse = i === 0 ?\n (right && isClockwise) || (!right && !isClockwise) :\n (right && !isClockwise) || (!right && isClockwise);\n if (reverse) {\n reverseCoordinates(flatCoordinates, offset, end, stride);\n }\n offset = end;\n }\n return offset;\n}\n\n\n/**\n * Orient coordinates in a flat array of linear rings. By default, rings\n * are oriented following the left-hand rule (clockwise for exterior and\n * counter-clockwise for interior rings). To orient according to the\n * right-hand rule, use the `opt_right` argument.\n *\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array>} endss Array of array of end indexes.\n * @param {number} stride Stride.\n * @param {boolean=} opt_right Follow the right-hand rule for orientation.\n * @return {number} End.\n */\nexport function orientLinearRingsArray(flatCoordinates, offset, endss, stride, opt_right) {\n for (var i = 0, ii = endss.length; i < ii; ++i) {\n offset = orientLinearRings(\n flatCoordinates, offset, endss[i], stride, opt_right);\n }\n return offset;\n}\n\n//# sourceMappingURL=orient.js.map","/**\n * @module ol/geom/Polygon\n */\nimport {extend} from '../array.js';\nimport {closestSquaredDistanceXY, getCenter} from '../extent.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport LinearRing from './LinearRing.js';\nimport Point from './Point.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {offset as sphereOffset} from '../sphere.js';\nimport {linearRings as linearRingsArea} from './flat/area.js';\nimport {assignClosestArrayPoint, arrayMaxSquaredDelta} from './flat/closest.js';\nimport {linearRingsContainsXY} from './flat/contains.js';\nimport {deflateCoordinatesArray} from './flat/deflate.js';\nimport {inflateCoordinatesArray} from './flat/inflate.js';\nimport {getInteriorPointOfArray} from './flat/interiorpoint.js';\nimport {intersectsLinearRingArray} from './flat/intersectsextent.js';\nimport {linearRingIsOriented, orientLinearRings} from './flat/orient.js';\nimport {quantizeArray} from './flat/simplify.js';\nimport {modulo} from '../math.js';\n\n/**\n * @classdesc\n * Polygon geometry.\n *\n * @api\n */\nvar Polygon = /*@__PURE__*/(function (SimpleGeometry) {\n function Polygon(coordinates, opt_layout, opt_ends) {\n\n SimpleGeometry.call(this);\n\n /**\n * @type {Array}\n * @private\n */\n this.ends_ = [];\n\n /**\n * @private\n * @type {number}\n */\n this.flatInteriorPointRevision_ = -1;\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.flatInteriorPoint_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.orientedRevision_ = -1;\n\n /**\n * @private\n * @type {Array}\n */\n this.orientedFlatCoordinates_ = null;\n\n if (opt_layout !== undefined && opt_ends) {\n this.setFlatCoordinates(opt_layout, /** @type {Array} */ (coordinates));\n this.ends_ = opt_ends;\n } else {\n this.setCoordinates(/** @type {Array>} */ (coordinates), opt_layout);\n }\n\n }\n\n if ( SimpleGeometry ) Polygon.__proto__ = SimpleGeometry;\n Polygon.prototype = Object.create( SimpleGeometry && SimpleGeometry.prototype );\n Polygon.prototype.constructor = Polygon;\n\n /**\n * Append the passed linear ring to this polygon.\n * @param {LinearRing} linearRing Linear ring.\n * @api\n */\n Polygon.prototype.appendLinearRing = function appendLinearRing (linearRing) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = linearRing.getFlatCoordinates().slice();\n } else {\n extend(this.flatCoordinates, linearRing.getFlatCoordinates());\n }\n this.ends_.push(this.flatCoordinates.length);\n this.changed();\n };\n\n /**\n * Make a complete copy of the geometry.\n * @return {!Polygon} Clone.\n * @override\n * @api\n */\n Polygon.prototype.clone = function clone () {\n return new Polygon(this.flatCoordinates.slice(), this.layout, this.ends_.slice());\n };\n\n /**\n * @inheritDoc\n */\n Polygon.prototype.closestPointXY = function closestPointXY (x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(arrayMaxSquaredDelta(\n this.flatCoordinates, 0, this.ends_, this.stride, 0));\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestArrayPoint(\n this.flatCoordinates, 0, this.ends_, this.stride,\n this.maxDelta_, true, x, y, closestPoint, minSquaredDistance);\n };\n\n /**\n * @inheritDoc\n */\n Polygon.prototype.containsXY = function containsXY (x, y) {\n return linearRingsContainsXY(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, x, y);\n };\n\n /**\n * Return the area of the polygon on projected plane.\n * @return {number} Area (on projected plane).\n * @api\n */\n Polygon.prototype.getArea = function getArea () {\n return linearRingsArea(this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride);\n };\n\n /**\n * Get the coordinate array for this geometry. This array has the structure\n * of a GeoJSON coordinate array for polygons.\n *\n * @param {boolean=} opt_right Orient coordinates according to the right-hand\n * rule (counter-clockwise for exterior and clockwise for interior rings).\n * If `false`, coordinates will be oriented according to the left-hand rule\n * (clockwise for exterior and counter-clockwise for interior rings).\n * By default, coordinate orientation will depend on how the geometry was\n * constructed.\n * @return {Array>} Coordinates.\n * @override\n * @api\n */\n Polygon.prototype.getCoordinates = function getCoordinates (opt_right) {\n var flatCoordinates;\n if (opt_right !== undefined) {\n flatCoordinates = this.getOrientedFlatCoordinates().slice();\n orientLinearRings(\n flatCoordinates, 0, this.ends_, this.stride, opt_right);\n } else {\n flatCoordinates = this.flatCoordinates;\n }\n\n return inflateCoordinatesArray(\n flatCoordinates, 0, this.ends_, this.stride);\n };\n\n /**\n * @return {Array} Ends.\n */\n Polygon.prototype.getEnds = function getEnds () {\n return this.ends_;\n };\n\n /**\n * @return {Array} Interior point.\n */\n Polygon.prototype.getFlatInteriorPoint = function getFlatInteriorPoint () {\n if (this.flatInteriorPointRevision_ != this.getRevision()) {\n var flatCenter = getCenter(this.getExtent());\n this.flatInteriorPoint_ = getInteriorPointOfArray(\n this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride,\n flatCenter, 0);\n this.flatInteriorPointRevision_ = this.getRevision();\n }\n return this.flatInteriorPoint_;\n };\n\n /**\n * Return an interior point of the polygon.\n * @return {Point} Interior point as XYM coordinate, where M is the\n * length of the horizontal intersection that the point belongs to.\n * @api\n */\n Polygon.prototype.getInteriorPoint = function getInteriorPoint () {\n return new Point(this.getFlatInteriorPoint(), GeometryLayout.XYM);\n };\n\n /**\n * Return the number of rings of the polygon, this includes the exterior\n * ring and any interior rings.\n *\n * @return {number} Number of rings.\n * @api\n */\n Polygon.prototype.getLinearRingCount = function getLinearRingCount () {\n return this.ends_.length;\n };\n\n /**\n * Return the Nth linear ring of the polygon geometry. Return `null` if the\n * given index is out of range.\n * The exterior linear ring is available at index `0` and the interior rings\n * at index `1` and beyond.\n *\n * @param {number} index Index.\n * @return {LinearRing} Linear ring.\n * @api\n */\n Polygon.prototype.getLinearRing = function getLinearRing (index) {\n if (index < 0 || this.ends_.length <= index) {\n return null;\n }\n return new LinearRing(this.flatCoordinates.slice(\n index === 0 ? 0 : this.ends_[index - 1], this.ends_[index]), this.layout);\n };\n\n /**\n * Return the linear rings of the polygon.\n * @return {Array} Linear rings.\n * @api\n */\n Polygon.prototype.getLinearRings = function getLinearRings () {\n var layout = this.layout;\n var flatCoordinates = this.flatCoordinates;\n var ends = this.ends_;\n var linearRings = [];\n var offset = 0;\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n var linearRing = new LinearRing(flatCoordinates.slice(offset, end), layout);\n linearRings.push(linearRing);\n offset = end;\n }\n return linearRings;\n };\n\n /**\n * @return {Array} Oriented flat coordinates.\n */\n Polygon.prototype.getOrientedFlatCoordinates = function getOrientedFlatCoordinates () {\n if (this.orientedRevision_ != this.getRevision()) {\n var flatCoordinates = this.flatCoordinates;\n if (linearRingIsOriented(\n flatCoordinates, 0, this.ends_, this.stride)) {\n this.orientedFlatCoordinates_ = flatCoordinates;\n } else {\n this.orientedFlatCoordinates_ = flatCoordinates.slice();\n this.orientedFlatCoordinates_.length =\n orientLinearRings(\n this.orientedFlatCoordinates_, 0, this.ends_, this.stride);\n }\n this.orientedRevision_ = this.getRevision();\n }\n return this.orientedFlatCoordinates_;\n };\n\n /**\n * @inheritDoc\n */\n Polygon.prototype.getSimplifiedGeometryInternal = function getSimplifiedGeometryInternal (squaredTolerance) {\n var simplifiedFlatCoordinates = [];\n var simplifiedEnds = [];\n simplifiedFlatCoordinates.length = quantizeArray(\n this.flatCoordinates, 0, this.ends_, this.stride,\n Math.sqrt(squaredTolerance),\n simplifiedFlatCoordinates, 0, simplifiedEnds);\n return new Polygon(simplifiedFlatCoordinates, GeometryLayout.XY, simplifiedEnds);\n };\n\n /**\n * @inheritDoc\n * @api\n */\n Polygon.prototype.getType = function getType () {\n return GeometryType.POLYGON;\n };\n\n /**\n * @inheritDoc\n * @api\n */\n Polygon.prototype.intersectsExtent = function intersectsExtent (extent) {\n return intersectsLinearRingArray(\n this.getOrientedFlatCoordinates(), 0, this.ends_, this.stride, extent);\n };\n\n /**\n * Set the coordinates of the polygon.\n * @param {!Array>} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n * @override\n * @api\n */\n Polygon.prototype.setCoordinates = function setCoordinates (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 2);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n var ends = deflateCoordinatesArray(\n this.flatCoordinates, 0, coordinates, this.stride, this.ends_);\n this.flatCoordinates.length = ends.length === 0 ? 0 : ends[ends.length - 1];\n this.changed();\n };\n\n return Polygon;\n}(SimpleGeometry));\n\n\nexport default Polygon;\n\n\n/**\n * Create an approximation of a circle on the surface of a sphere.\n * @param {import(\"../coordinate.js\").Coordinate} center Center (`[lon, lat]` in degrees).\n * @param {number} radius The great-circle distance from the center to\n * the polygon vertices.\n * @param {number=} opt_n Optional number of vertices for the resulting\n * polygon. Default is `32`.\n * @param {number=} opt_sphereRadius Optional radius for the sphere (defaults to\n * the Earth's mean radius using the WGS84 ellipsoid).\n * @return {Polygon} The \"circular\" polygon.\n * @api\n */\nexport function circular(center, radius, opt_n, opt_sphereRadius) {\n var n = opt_n ? opt_n : 32;\n /** @type {Array} */\n var flatCoordinates = [];\n for (var i = 0; i < n; ++i) {\n extend(flatCoordinates, sphereOffset(center, radius, 2 * Math.PI * i / n, opt_sphereRadius));\n }\n flatCoordinates.push(flatCoordinates[0], flatCoordinates[1]);\n return new Polygon(flatCoordinates, GeometryLayout.XY, [flatCoordinates.length]);\n}\n\n\n/**\n * Create a polygon from an extent. The layout used is `XY`.\n * @param {import(\"../extent.js\").Extent} extent The extent.\n * @return {Polygon} The polygon.\n * @api\n */\nexport function fromExtent(extent) {\n var minX = extent[0];\n var minY = extent[1];\n var maxX = extent[2];\n var maxY = extent[3];\n var flatCoordinates =\n [minX, minY, minX, maxY, maxX, maxY, maxX, minY, minX, minY];\n return new Polygon(flatCoordinates, GeometryLayout.XY, [flatCoordinates.length]);\n}\n\n\n/**\n * Create a regular polygon from a circle.\n * @param {import(\"./Circle.js\").default} circle Circle geometry.\n * @param {number=} opt_sides Number of sides of the polygon. Default is 32.\n * @param {number=} opt_angle Start angle for the first vertex of the polygon in\n * radians. Default is 0.\n * @return {Polygon} Polygon geometry.\n * @api\n */\nexport function fromCircle(circle, opt_sides, opt_angle) {\n var sides = opt_sides ? opt_sides : 32;\n var stride = circle.getStride();\n var layout = circle.getLayout();\n var center = circle.getCenter();\n var arrayLength = stride * (sides + 1);\n var flatCoordinates = new Array(arrayLength);\n for (var i = 0; i < arrayLength; i += stride) {\n flatCoordinates[i] = 0;\n flatCoordinates[i + 1] = 0;\n for (var j = 2; j < stride; j++) {\n flatCoordinates[i + j] = center[j];\n }\n }\n var ends = [flatCoordinates.length];\n var polygon = new Polygon(flatCoordinates, layout, ends);\n makeRegular(polygon, center, circle.getRadius(), opt_angle);\n return polygon;\n}\n\n\n/**\n * Modify the coordinates of a polygon to make it a regular polygon.\n * @param {Polygon} polygon Polygon geometry.\n * @param {import(\"../coordinate.js\").Coordinate} center Center of the regular polygon.\n * @param {number} radius Radius of the regular polygon.\n * @param {number=} opt_angle Start angle for the first vertex of the polygon in\n * radians. Default is 0.\n */\nexport function makeRegular(polygon, center, radius, opt_angle) {\n var flatCoordinates = polygon.getFlatCoordinates();\n var stride = polygon.getStride();\n var sides = flatCoordinates.length / stride - 1;\n var startAngle = opt_angle ? opt_angle : 0;\n for (var i = 0; i <= sides; ++i) {\n var offset = i * stride;\n var angle = startAngle + (modulo(i, sides) * 2 * Math.PI / sides);\n flatCoordinates[offset] = center[0] + (radius * Math.cos(angle));\n flatCoordinates[offset + 1] = center[1] + (radius * Math.sin(angle));\n }\n polygon.changed();\n}\n\n//# sourceMappingURL=Polygon.js.map","/**\n * @module ol/has\n */\n\nvar ua = typeof navigator !== 'undefined' ?\n navigator.userAgent.toLowerCase() : '';\n\n/**\n * User agent string says we are dealing with Firefox as browser.\n * @type {boolean}\n */\nexport var FIREFOX = ua.indexOf('firefox') !== -1;\n\n/**\n * User agent string says we are dealing with Safari as browser.\n * @type {boolean}\n */\nexport var SAFARI = ua.indexOf('safari') !== -1 && ua.indexOf('chrom') == -1;\n\n/**\n * User agent string says we are dealing with a WebKit engine.\n * @type {boolean}\n */\nexport var WEBKIT = ua.indexOf('webkit') !== -1 && ua.indexOf('edge') == -1;\n\n/**\n * User agent string says we are dealing with a Mac as platform.\n * @type {boolean}\n */\nexport var MAC = ua.indexOf('macintosh') !== -1;\n\n\n/**\n * The ratio between physical pixels and device-independent pixels\n * (dips) on the device (`window.devicePixelRatio`).\n * @const\n * @type {number}\n * @api\n */\nexport var DEVICE_PIXEL_RATIO = window.devicePixelRatio || 1;\n\n\n/**\n * True if the browser's Canvas implementation implements {get,set}LineDash.\n * @type {boolean}\n */\nexport var CANVAS_LINE_DASH = function() {\n var has = false;\n try {\n has = !!document.createElement('canvas').getContext('2d').setLineDash;\n } catch (e) {\n // pass\n }\n return has;\n}();\n\n\n/**\n * Is HTML5 geolocation supported in the current browser?\n * @const\n * @type {boolean}\n * @api\n */\nexport var GEOLOCATION = 'geolocation' in navigator;\n\n\n/**\n * True if browser supports touch events.\n * @const\n * @type {boolean}\n * @api\n */\nexport var TOUCH = 'ontouchstart' in window;\n\n\n/**\n * True if browser supports pointer events.\n * @const\n * @type {boolean}\n */\nexport var POINTER = 'PointerEvent' in window;\n\n\n/**\n * True if browser supports ms pointer events (IE 10).\n * @const\n * @type {boolean}\n */\nexport var MSPOINTER = !!(navigator.msPointerEnabled);\n\n\nexport {HAS as WEBGL} from './webgl.js';\n\n//# sourceMappingURL=has.js.map","/**\n * @module ol/Geolocation\n */\nimport BaseObject, {getChangeEventType} from './Object.js';\nimport {listen} from './events.js';\nimport Event from './events/Event.js';\nimport EventType from './events/EventType.js';\nimport {circular as circularPolygon} from './geom/Polygon.js';\nimport {GEOLOCATION} from './has.js';\nimport {toRadians} from './math.js';\nimport {get as getProjection, getTransformFromProjections, identityTransform} from './proj.js';\n\n\n/**\n * @enum {string}\n */\nvar Property = {\n ACCURACY: 'accuracy',\n ACCURACY_GEOMETRY: 'accuracyGeometry',\n ALTITUDE: 'altitude',\n ALTITUDE_ACCURACY: 'altitudeAccuracy',\n HEADING: 'heading',\n POSITION: 'position',\n PROJECTION: 'projection',\n SPEED: 'speed',\n TRACKING: 'tracking',\n TRACKING_OPTIONS: 'trackingOptions'\n};\n\n\n/**\n * @classdesc\n * Events emitted on Geolocation error.\n */\nvar GeolocationError = /*@__PURE__*/(function (Event) {\n function GeolocationError(error) {\n Event.call(this, EventType.ERROR);\n\n /**\n * @type {number}\n */\n this.code = error.code;\n\n /**\n * @type {string}\n */\n this.message = error.message;\n }\n\n if ( Event ) GeolocationError.__proto__ = Event;\n GeolocationError.prototype = Object.create( Event && Event.prototype );\n GeolocationError.prototype.constructor = GeolocationError;\n\n return GeolocationError;\n}(Event));\n\n\n/**\n * @typedef {Object} Options\n * @property {boolean} [tracking=false] Start Tracking right after\n * instantiation.\n * @property {PositionOptions} [trackingOptions] Tracking options.\n * See http://www.w3.org/TR/geolocation-API/#position_options_interface.\n * @property {import(\"./proj.js\").ProjectionLike} [projection] The projection the position\n * is reported in.\n */\n\n\n/**\n * @classdesc\n * Helper class for providing HTML5 Geolocation capabilities.\n * The [Geolocation API](http://www.w3.org/TR/geolocation-API/)\n * is used to locate a user's position.\n *\n * To get notified of position changes, register a listener for the generic\n * `change` event on your instance of {@link module:ol/Geolocation~Geolocation}.\n *\n * Example:\n *\n * var geolocation = new Geolocation({\n * // take the projection to use from the map's view\n * projection: view.getProjection()\n * });\n * // listen to changes in position\n * geolocation.on('change', function(evt) {\n * window.console.log(geolocation.getPosition());\n * });\n *\n * @fires error\n * @api\n */\nvar Geolocation = /*@__PURE__*/(function (BaseObject) {\n function Geolocation(opt_options) {\n\n BaseObject.call(this);\n\n var options = opt_options || {};\n\n /**\n * The unprojected (EPSG:4326) device position.\n * @private\n * @type {import(\"./coordinate.js\").Coordinate}\n */\n this.position_ = null;\n\n /**\n * @private\n * @type {import(\"./proj.js\").TransformFunction}\n */\n this.transform_ = identityTransform;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.watchId_ = undefined;\n\n listen(\n this, getChangeEventType(Property.PROJECTION),\n this.handleProjectionChanged_, this);\n listen(\n this, getChangeEventType(Property.TRACKING),\n this.handleTrackingChanged_, this);\n\n if (options.projection !== undefined) {\n this.setProjection(options.projection);\n }\n if (options.trackingOptions !== undefined) {\n this.setTrackingOptions(options.trackingOptions);\n }\n\n this.setTracking(options.tracking !== undefined ? options.tracking : false);\n\n }\n\n if ( BaseObject ) Geolocation.__proto__ = BaseObject;\n Geolocation.prototype = Object.create( BaseObject && BaseObject.prototype );\n Geolocation.prototype.constructor = Geolocation;\n\n /**\n * @inheritDoc\n */\n Geolocation.prototype.disposeInternal = function disposeInternal () {\n this.setTracking(false);\n BaseObject.prototype.disposeInternal.call(this);\n };\n\n /**\n * @private\n */\n Geolocation.prototype.handleProjectionChanged_ = function handleProjectionChanged_ () {\n var projection = this.getProjection();\n if (projection) {\n this.transform_ = getTransformFromProjections(\n getProjection('EPSG:4326'), projection);\n if (this.position_) {\n this.set(Property.POSITION, this.transform_(this.position_));\n }\n }\n };\n\n /**\n * @private\n */\n Geolocation.prototype.handleTrackingChanged_ = function handleTrackingChanged_ () {\n if (GEOLOCATION) {\n var tracking = this.getTracking();\n if (tracking && this.watchId_ === undefined) {\n this.watchId_ = navigator.geolocation.watchPosition(\n this.positionChange_.bind(this),\n this.positionError_.bind(this),\n this.getTrackingOptions());\n } else if (!tracking && this.watchId_ !== undefined) {\n navigator.geolocation.clearWatch(this.watchId_);\n this.watchId_ = undefined;\n }\n }\n };\n\n /**\n * @private\n * @param {Position} position position event.\n */\n Geolocation.prototype.positionChange_ = function positionChange_ (position) {\n var coords = position.coords;\n this.set(Property.ACCURACY, coords.accuracy);\n this.set(Property.ALTITUDE,\n coords.altitude === null ? undefined : coords.altitude);\n this.set(Property.ALTITUDE_ACCURACY,\n coords.altitudeAccuracy === null ?\n undefined : coords.altitudeAccuracy);\n this.set(Property.HEADING, coords.heading === null ?\n undefined : toRadians(coords.heading));\n if (!this.position_) {\n this.position_ = [coords.longitude, coords.latitude];\n } else {\n this.position_[0] = coords.longitude;\n this.position_[1] = coords.latitude;\n }\n var projectedPosition = this.transform_(this.position_);\n this.set(Property.POSITION, projectedPosition);\n this.set(Property.SPEED,\n coords.speed === null ? undefined : coords.speed);\n var geometry = circularPolygon(this.position_, coords.accuracy);\n geometry.applyTransform(this.transform_);\n this.set(Property.ACCURACY_GEOMETRY, geometry);\n this.changed();\n };\n\n /**\n * Triggered when the Geolocation returns an error.\n * @event error\n * @api\n */\n\n /**\n * @private\n * @param {PositionError} error error object.\n */\n Geolocation.prototype.positionError_ = function positionError_ (error) {\n this.setTracking(false);\n this.dispatchEvent(new GeolocationError(error));\n };\n\n /**\n * Get the accuracy of the position in meters.\n * @return {number|undefined} The accuracy of the position measurement in\n * meters.\n * @observable\n * @api\n */\n Geolocation.prototype.getAccuracy = function getAccuracy () {\n return /** @type {number|undefined} */ (this.get(Property.ACCURACY));\n };\n\n /**\n * Get a geometry of the position accuracy.\n * @return {?import(\"./geom/Polygon.js\").default} A geometry of the position accuracy.\n * @observable\n * @api\n */\n Geolocation.prototype.getAccuracyGeometry = function getAccuracyGeometry () {\n return (\n /** @type {?import(\"./geom/Polygon.js\").default} */ (this.get(Property.ACCURACY_GEOMETRY) || null)\n );\n };\n\n /**\n * Get the altitude associated with the position.\n * @return {number|undefined} The altitude of the position in meters above mean\n * sea level.\n * @observable\n * @api\n */\n Geolocation.prototype.getAltitude = function getAltitude () {\n return /** @type {number|undefined} */ (this.get(Property.ALTITUDE));\n };\n\n /**\n * Get the altitude accuracy of the position.\n * @return {number|undefined} The accuracy of the altitude measurement in\n * meters.\n * @observable\n * @api\n */\n Geolocation.prototype.getAltitudeAccuracy = function getAltitudeAccuracy () {\n return /** @type {number|undefined} */ (this.get(Property.ALTITUDE_ACCURACY));\n };\n\n /**\n * Get the heading as radians clockwise from North.\n * Note: depending on the browser, the heading is only defined if the `enableHighAccuracy`\n * is set to `true` in the tracking options.\n * @return {number|undefined} The heading of the device in radians from north.\n * @observable\n * @api\n */\n Geolocation.prototype.getHeading = function getHeading () {\n return /** @type {number|undefined} */ (this.get(Property.HEADING));\n };\n\n /**\n * Get the position of the device.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} The current position of the device reported\n * in the current projection.\n * @observable\n * @api\n */\n Geolocation.prototype.getPosition = function getPosition () {\n return (\n /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(Property.POSITION))\n );\n };\n\n /**\n * Get the projection associated with the position.\n * @return {import(\"./proj/Projection.js\").default|undefined} The projection the position is\n * reported in.\n * @observable\n * @api\n */\n Geolocation.prototype.getProjection = function getProjection () {\n return (\n /** @type {import(\"./proj/Projection.js\").default|undefined} */ (this.get(Property.PROJECTION))\n );\n };\n\n /**\n * Get the speed in meters per second.\n * @return {number|undefined} The instantaneous speed of the device in meters\n * per second.\n * @observable\n * @api\n */\n Geolocation.prototype.getSpeed = function getSpeed () {\n return /** @type {number|undefined} */ (this.get(Property.SPEED));\n };\n\n /**\n * Determine if the device location is being tracked.\n * @return {boolean} The device location is being tracked.\n * @observable\n * @api\n */\n Geolocation.prototype.getTracking = function getTracking () {\n return /** @type {boolean} */ (this.get(Property.TRACKING));\n };\n\n /**\n * Get the tracking options.\n * See http://www.w3.org/TR/geolocation-API/#position-options.\n * @return {PositionOptions|undefined} PositionOptions as defined by\n * the [HTML5 Geolocation spec\n * ](http://www.w3.org/TR/geolocation-API/#position_options_interface).\n * @observable\n * @api\n */\n Geolocation.prototype.getTrackingOptions = function getTrackingOptions () {\n return /** @type {PositionOptions|undefined} */ (this.get(Property.TRACKING_OPTIONS));\n };\n\n /**\n * Set the projection to use for transforming the coordinates.\n * @param {import(\"./proj.js\").ProjectionLike} projection The projection the position is\n * reported in.\n * @observable\n * @api\n */\n Geolocation.prototype.setProjection = function setProjection (projection) {\n this.set(Property.PROJECTION, getProjection(projection));\n };\n\n /**\n * Enable or disable tracking.\n * @param {boolean} tracking Enable tracking.\n * @observable\n * @api\n */\n Geolocation.prototype.setTracking = function setTracking (tracking) {\n this.set(Property.TRACKING, tracking);\n };\n\n /**\n * Set the tracking options.\n * See http://www.w3.org/TR/geolocation-API/#position-options.\n * @param {PositionOptions} options PositionOptions as defined by the\n * [HTML5 Geolocation spec\n * ](http://www.w3.org/TR/geolocation-API/#position_options_interface).\n * @observable\n * @api\n */\n Geolocation.prototype.setTrackingOptions = function setTrackingOptions (options) {\n this.set(Property.TRACKING_OPTIONS, options);\n };\n\n return Geolocation;\n}(BaseObject));\n\n\nexport default Geolocation;\n\n//# sourceMappingURL=Geolocation.js.map","/**\n * @module ol/string\n */\n\n/**\n * @param {number} number Number to be formatted\n * @param {number} width The desired width\n * @param {number=} opt_precision Precision of the output string (i.e. number of decimal places)\n * @returns {string} Formatted string\n */\nexport function padNumber(number, width, opt_precision) {\n var numberString = opt_precision !== undefined ? number.toFixed(opt_precision) : '' + number;\n var decimal = numberString.indexOf('.');\n decimal = decimal === -1 ? numberString.length : decimal;\n return decimal > width ? numberString : new Array(1 + width - decimal).join('0') + numberString;\n}\n\n\n/**\n * Adapted from https://github.com/omichelsen/compare-versions/blob/master/index.js\n * @param {string|number} v1 First version\n * @param {string|number} v2 Second version\n * @returns {number} Value\n */\nexport function compareVersions(v1, v2) {\n var s1 = ('' + v1).split('.');\n var s2 = ('' + v2).split('.');\n\n for (var i = 0; i < Math.max(s1.length, s2.length); i++) {\n var n1 = parseInt(s1[i] || '0', 10);\n var n2 = parseInt(s2[i] || '0', 10);\n\n if (n1 > n2) {\n return 1;\n }\n if (n2 > n1) {\n return -1;\n }\n }\n\n return 0;\n}\n\n//# sourceMappingURL=string.js.map","/**\n * @module ol/coordinate\n */\nimport {modulo} from './math.js';\nimport {padNumber} from './string.js';\n\n\n/**\n * An array of numbers representing an xy coordinate. Example: `[16, 48]`.\n * @typedef {Array} Coordinate\n * @api\n */\n\n\n/**\n * A function that takes a {@link module:ol/coordinate~Coordinate} and\n * transforms it into a `{string}`.\n *\n * @typedef {function((Coordinate|undefined)): string} CoordinateFormat\n * @api\n */\n\n\n/**\n * Add `delta` to `coordinate`. `coordinate` is modified in place and returned\n * by the function.\n *\n * Example:\n *\n * import {add} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * add(coord, [-2, 4]);\n * // coord is now [5.85, 51.983333]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {Coordinate} delta Delta.\n * @return {Coordinate} The input coordinate adjusted by\n * the given delta.\n * @api\n */\nexport function add(coordinate, delta) {\n coordinate[0] += delta[0];\n coordinate[1] += delta[1];\n return coordinate;\n}\n\n\n/**\n * Calculates the point closest to the passed coordinate on the passed circle.\n *\n * @param {Coordinate} coordinate The coordinate.\n * @param {import(\"./geom/Circle.js\").default} circle The circle.\n * @return {Coordinate} Closest point on the circumference.\n */\nexport function closestOnCircle(coordinate, circle) {\n var r = circle.getRadius();\n var center = circle.getCenter();\n var x0 = center[0];\n var y0 = center[1];\n var x1 = coordinate[0];\n var y1 = coordinate[1];\n\n var dx = x1 - x0;\n var dy = y1 - y0;\n if (dx === 0 && dy === 0) {\n dx = 1;\n }\n var d = Math.sqrt(dx * dx + dy * dy);\n\n var x = x0 + r * dx / d;\n var y = y0 + r * dy / d;\n\n return [x, y];\n}\n\n\n/**\n * Calculates the point closest to the passed coordinate on the passed segment.\n * This is the foot of the perpendicular of the coordinate to the segment when\n * the foot is on the segment, or the closest segment coordinate when the foot\n * is outside the segment.\n *\n * @param {Coordinate} coordinate The coordinate.\n * @param {Array} segment The two coordinates\n * of the segment.\n * @return {Coordinate} The foot of the perpendicular of\n * the coordinate to the segment.\n */\nexport function closestOnSegment(coordinate, segment) {\n var x0 = coordinate[0];\n var y0 = coordinate[1];\n var start = segment[0];\n var end = segment[1];\n var x1 = start[0];\n var y1 = start[1];\n var x2 = end[0];\n var y2 = end[1];\n var dx = x2 - x1;\n var dy = y2 - y1;\n var along = (dx === 0 && dy === 0) ? 0 :\n ((dx * (x0 - x1)) + (dy * (y0 - y1))) / ((dx * dx + dy * dy) || 0);\n var x, y;\n if (along <= 0) {\n x = x1;\n y = y1;\n } else if (along >= 1) {\n x = x2;\n y = y2;\n } else {\n x = x1 + along * dx;\n y = y1 + along * dy;\n }\n return [x, y];\n}\n\n\n/**\n * Returns a {@link module:ol/coordinate~CoordinateFormat} function that can be\n * used to format\n * a {Coordinate} to a string.\n *\n * Example without specifying the fractional digits:\n *\n * import {createStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var stringifyFunc = createStringXY();\n * var out = stringifyFunc(coord);\n * // out is now '8, 48'\n *\n * Example with explicitly specifying 2 fractional digits:\n *\n * import {createStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var stringifyFunc = createStringXY(2);\n * var out = stringifyFunc(coord);\n * // out is now '7.85, 47.98'\n *\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {CoordinateFormat} Coordinate format.\n * @api\n */\nexport function createStringXY(opt_fractionDigits) {\n return (\n /**\n * @param {Coordinate} coordinate Coordinate.\n * @return {string} String XY.\n */\n function(coordinate) {\n return toStringXY(coordinate, opt_fractionDigits);\n }\n );\n}\n\n\n/**\n * @param {string} hemispheres Hemispheres.\n * @param {number} degrees Degrees.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} String.\n */\nexport function degreesToStringHDMS(hemispheres, degrees, opt_fractionDigits) {\n var normalizedDegrees = modulo(degrees + 180, 360) - 180;\n var x = Math.abs(3600 * normalizedDegrees);\n var dflPrecision = opt_fractionDigits || 0;\n var precision = Math.pow(10, dflPrecision);\n\n var deg = Math.floor(x / 3600);\n var min = Math.floor((x - deg * 3600) / 60);\n var sec = x - (deg * 3600) - (min * 60);\n sec = Math.ceil(sec * precision) / precision;\n\n if (sec >= 60) {\n sec = 0;\n min += 1;\n }\n\n if (min >= 60) {\n min = 0;\n deg += 1;\n }\n\n return deg + '\\u00b0 ' + padNumber(min, 2) + '\\u2032 ' +\n padNumber(sec, 2, dflPrecision) + '\\u2033' +\n (normalizedDegrees == 0 ? '' : ' ' + hemispheres.charAt(normalizedDegrees < 0 ? 1 : 0));\n}\n\n\n/**\n * Transforms the given {@link module:ol/coordinate~Coordinate} to a string\n * using the given string template. The strings `{x}` and `{y}` in the template\n * will be replaced with the first and second coordinate values respectively.\n *\n * Example without specifying the fractional digits:\n *\n * import {format} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var template = 'Coordinate is ({x}|{y}).';\n * var out = format(coord, template);\n * // out is now 'Coordinate is (8|48).'\n *\n * Example explicitly specifying the fractional digits:\n *\n * import {format} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var template = 'Coordinate is ({x}|{y}).';\n * var out = format(coord, template, 2);\n * // out is now 'Coordinate is (7.85|47.98).'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {string} template A template string with `{x}` and `{y}` placeholders\n * that will be replaced by first and second coordinate values.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} Formatted coordinate.\n * @api\n */\nexport function format(coordinate, template, opt_fractionDigits) {\n if (coordinate) {\n return template\n .replace('{x}', coordinate[0].toFixed(opt_fractionDigits))\n .replace('{y}', coordinate[1].toFixed(opt_fractionDigits));\n } else {\n return '';\n }\n}\n\n\n/**\n * @param {Coordinate} coordinate1 First coordinate.\n * @param {Coordinate} coordinate2 Second coordinate.\n * @return {boolean} The two coordinates are equal.\n */\nexport function equals(coordinate1, coordinate2) {\n var equals = true;\n for (var i = coordinate1.length - 1; i >= 0; --i) {\n if (coordinate1[i] != coordinate2[i]) {\n equals = false;\n break;\n }\n }\n return equals;\n}\n\n\n/**\n * Rotate `coordinate` by `angle`. `coordinate` is modified in place and\n * returned by the function.\n *\n * Example:\n *\n * import {rotate} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var rotateRadians = Math.PI / 2; // 90 degrees\n * rotate(coord, rotateRadians);\n * // coord is now [-47.983333, 7.85]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} angle Angle in radian.\n * @return {Coordinate} Coordinate.\n * @api\n */\nexport function rotate(coordinate, angle) {\n var cosAngle = Math.cos(angle);\n var sinAngle = Math.sin(angle);\n var x = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n var y = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n coordinate[0] = x;\n coordinate[1] = y;\n return coordinate;\n}\n\n\n/**\n * Scale `coordinate` by `scale`. `coordinate` is modified in place and returned\n * by the function.\n *\n * Example:\n *\n * import {scale as scaleCoordinate} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var scale = 1.2;\n * scaleCoordinate(coord, scale);\n * // coord is now [9.42, 57.5799996]\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number} scale Scale factor.\n * @return {Coordinate} Coordinate.\n */\nexport function scale(coordinate, scale) {\n coordinate[0] *= scale;\n coordinate[1] *= scale;\n return coordinate;\n}\n\n\n/**\n * @param {Coordinate} coord1 First coordinate.\n * @param {Coordinate} coord2 Second coordinate.\n * @return {number} Squared distance between coord1 and coord2.\n */\nexport function squaredDistance(coord1, coord2) {\n var dx = coord1[0] - coord2[0];\n var dy = coord1[1] - coord2[1];\n return dx * dx + dy * dy;\n}\n\n\n/**\n * @param {Coordinate} coord1 First coordinate.\n * @param {Coordinate} coord2 Second coordinate.\n * @return {number} Distance between coord1 and coord2.\n */\nexport function distance(coord1, coord2) {\n return Math.sqrt(squaredDistance(coord1, coord2));\n}\n\n\n/**\n * Calculate the squared distance from a coordinate to a line segment.\n *\n * @param {Coordinate} coordinate Coordinate of the point.\n * @param {Array} segment Line segment (2\n * coordinates).\n * @return {number} Squared distance from the point to the line segment.\n */\nexport function squaredDistanceToSegment(coordinate, segment) {\n return squaredDistance(coordinate,\n closestOnSegment(coordinate, segment));\n}\n\n\n/**\n * Format a geographic coordinate with the hemisphere, degrees, minutes, and\n * seconds.\n *\n * Example without specifying fractional digits:\n *\n * import {toStringHDMS} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringHDMS(coord);\n * // out is now '47° 58′ 60″ N 7° 50′ 60″ E'\n *\n * Example explicitly specifying 1 fractional digit:\n *\n * import {toStringHDMS} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringHDMS(coord, 1);\n * // out is now '47° 58′ 60.0″ N 7° 50′ 60.0″ E'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} Hemisphere, degrees, minutes and seconds.\n * @api\n */\nexport function toStringHDMS(coordinate, opt_fractionDigits) {\n if (coordinate) {\n return degreesToStringHDMS('NS', coordinate[1], opt_fractionDigits) + ' ' +\n degreesToStringHDMS('EW', coordinate[0], opt_fractionDigits);\n } else {\n return '';\n }\n}\n\n\n/**\n * Format a coordinate as a comma delimited string.\n *\n * Example without specifying fractional digits:\n *\n * import {toStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringXY(coord);\n * // out is now '8, 48'\n *\n * Example explicitly specifying 1 fractional digit:\n *\n * import {toStringXY} from 'ol/coordinate';\n *\n * var coord = [7.85, 47.983333];\n * var out = toStringXY(coord, 1);\n * // out is now '7.8, 48.0'\n *\n * @param {Coordinate} coordinate Coordinate.\n * @param {number=} opt_fractionDigits The number of digits to include\n * after the decimal point. Default is `0`.\n * @return {string} XY.\n * @api\n */\nexport function toStringXY(coordinate, opt_fractionDigits) {\n return format(coordinate, '{x}, {y}', opt_fractionDigits);\n}\n\n//# sourceMappingURL=coordinate.js.map","/**\n * @module ol/geom/flat/interpolate\n */\nimport {binarySearch} from '../../array.js';\nimport {lerp} from '../../math.js';\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} fraction Fraction.\n * @param {Array=} opt_dest Destination.\n * @return {Array} Destination.\n */\nexport function interpolatePoint(flatCoordinates, offset, end, stride, fraction, opt_dest) {\n var pointX = NaN;\n var pointY = NaN;\n var n = (end - offset) / stride;\n if (n === 1) {\n pointX = flatCoordinates[offset];\n pointY = flatCoordinates[offset + 1];\n } else if (n == 2) {\n pointX = (1 - fraction) * flatCoordinates[offset] +\n fraction * flatCoordinates[offset + stride];\n pointY = (1 - fraction) * flatCoordinates[offset + 1] +\n fraction * flatCoordinates[offset + stride + 1];\n } else if (n !== 0) {\n var x1 = flatCoordinates[offset];\n var y1 = flatCoordinates[offset + 1];\n var length = 0;\n var cumulativeLengths = [0];\n for (var i = offset + stride; i < end; i += stride) {\n var x2 = flatCoordinates[i];\n var y2 = flatCoordinates[i + 1];\n length += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));\n cumulativeLengths.push(length);\n x1 = x2;\n y1 = y2;\n }\n var target = fraction * length;\n var index = binarySearch(cumulativeLengths, target);\n if (index < 0) {\n var t = (target - cumulativeLengths[-index - 2]) /\n (cumulativeLengths[-index - 1] - cumulativeLengths[-index - 2]);\n var o = offset + (-index - 2) * stride;\n pointX = lerp(\n flatCoordinates[o], flatCoordinates[o + stride], t);\n pointY = lerp(\n flatCoordinates[o + 1], flatCoordinates[o + stride + 1], t);\n } else {\n pointX = flatCoordinates[offset + index * stride];\n pointY = flatCoordinates[offset + index * stride + 1];\n }\n }\n if (opt_dest) {\n opt_dest[0] = pointX;\n opt_dest[1] = pointY;\n return opt_dest;\n } else {\n return [pointX, pointY];\n }\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @param {number} m M.\n * @param {boolean} extrapolate Extrapolate.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\nexport function lineStringCoordinateAtM(flatCoordinates, offset, end, stride, m, extrapolate) {\n if (end == offset) {\n return null;\n }\n var coordinate;\n if (m < flatCoordinates[offset + stride - 1]) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(offset, offset + stride);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n } else if (flatCoordinates[end - 1] < m) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(end - stride, end);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n }\n // FIXME use O(1) search\n if (m == flatCoordinates[offset + stride - 1]) {\n return flatCoordinates.slice(offset, offset + stride);\n }\n var lo = offset / stride;\n var hi = end / stride;\n while (lo < hi) {\n var mid = (lo + hi) >> 1;\n if (m < flatCoordinates[(mid + 1) * stride - 1]) {\n hi = mid;\n } else {\n lo = mid + 1;\n }\n }\n var m0 = flatCoordinates[lo * stride - 1];\n if (m == m0) {\n return flatCoordinates.slice((lo - 1) * stride, (lo - 1) * stride + stride);\n }\n var m1 = flatCoordinates[(lo + 1) * stride - 1];\n var t = (m - m0) / (m1 - m0);\n coordinate = [];\n for (var i = 0; i < stride - 1; ++i) {\n coordinate.push(lerp(flatCoordinates[(lo - 1) * stride + i],\n flatCoordinates[lo * stride + i], t));\n }\n coordinate.push(m);\n return coordinate;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {Array} ends Ends.\n * @param {number} stride Stride.\n * @param {number} m M.\n * @param {boolean} extrapolate Extrapolate.\n * @param {boolean} interpolate Interpolate.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\nexport function lineStringsCoordinateAtM(\n flatCoordinates, offset, ends, stride, m, extrapolate, interpolate) {\n if (interpolate) {\n return lineStringCoordinateAtM(\n flatCoordinates, offset, ends[ends.length - 1], stride, m, extrapolate);\n }\n var coordinate;\n if (m < flatCoordinates[stride - 1]) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(0, stride);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n }\n if (flatCoordinates[flatCoordinates.length - 1] < m) {\n if (extrapolate) {\n coordinate = flatCoordinates.slice(flatCoordinates.length - stride);\n coordinate[stride - 1] = m;\n return coordinate;\n } else {\n return null;\n }\n }\n for (var i = 0, ii = ends.length; i < ii; ++i) {\n var end = ends[i];\n if (offset == end) {\n continue;\n }\n if (m < flatCoordinates[offset + stride - 1]) {\n return null;\n } else if (m <= flatCoordinates[end - 1]) {\n return lineStringCoordinateAtM(\n flatCoordinates, offset, end, stride, m, false);\n }\n offset = end;\n }\n return null;\n}\n\n//# sourceMappingURL=interpolate.js.map","/**\n * @module ol/geom/flat/length\n */\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {number} Length.\n */\nexport function lineStringLength(flatCoordinates, offset, end, stride) {\n var x1 = flatCoordinates[offset];\n var y1 = flatCoordinates[offset + 1];\n var length = 0;\n for (var i = offset + stride; i < end; i += stride) {\n var x2 = flatCoordinates[i];\n var y2 = flatCoordinates[i + 1];\n length += Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));\n x1 = x2;\n y1 = y2;\n }\n return length;\n}\n\n\n/**\n * @param {Array} flatCoordinates Flat coordinates.\n * @param {number} offset Offset.\n * @param {number} end End.\n * @param {number} stride Stride.\n * @return {number} Perimeter.\n */\nexport function linearRingLength(flatCoordinates, offset, end, stride) {\n var perimeter = lineStringLength(flatCoordinates, offset, end, stride);\n var dx = flatCoordinates[end - stride] - flatCoordinates[offset];\n var dy = flatCoordinates[end - stride + 1] - flatCoordinates[offset + 1];\n perimeter += Math.sqrt(dx * dx + dy * dy);\n return perimeter;\n}\n\n//# sourceMappingURL=length.js.map","/**\n * @module ol/geom/LineString\n */\nimport {extend} from '../array.js';\nimport {closestSquaredDistanceXY} from '../extent.js';\nimport GeometryLayout from './GeometryLayout.js';\nimport GeometryType from './GeometryType.js';\nimport SimpleGeometry from './SimpleGeometry.js';\nimport {assignClosestPoint, maxSquaredDelta} from './flat/closest.js';\nimport {deflateCoordinates} from './flat/deflate.js';\nimport {inflateCoordinates} from './flat/inflate.js';\nimport {interpolatePoint, lineStringCoordinateAtM} from './flat/interpolate.js';\nimport {intersectsLineString} from './flat/intersectsextent.js';\nimport {lineStringLength} from './flat/length.js';\nimport {forEach as forEachSegment} from './flat/segments.js';\nimport {douglasPeucker} from './flat/simplify.js';\n\n/**\n * @classdesc\n * Linestring geometry.\n *\n * @api\n */\nvar LineString = /*@__PURE__*/(function (SimpleGeometry) {\n function LineString(coordinates, opt_layout) {\n\n SimpleGeometry.call(this);\n\n /**\n * @private\n * @type {import(\"../coordinate.js\").Coordinate}\n */\n this.flatMidpoint_ = null;\n\n /**\n * @private\n * @type {number}\n */\n this.flatMidpointRevision_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDelta_ = -1;\n\n /**\n * @private\n * @type {number}\n */\n this.maxDeltaRevision_ = -1;\n\n if (opt_layout !== undefined && !Array.isArray(coordinates[0])) {\n this.setFlatCoordinates(opt_layout, /** @type {Array} */ (coordinates));\n } else {\n this.setCoordinates(/** @type {Array} */ (coordinates), opt_layout);\n }\n\n }\n\n if ( SimpleGeometry ) LineString.__proto__ = SimpleGeometry;\n LineString.prototype = Object.create( SimpleGeometry && SimpleGeometry.prototype );\n LineString.prototype.constructor = LineString;\n\n /**\n * Append the passed coordinate to the coordinates of the linestring.\n * @param {import(\"../coordinate.js\").Coordinate} coordinate Coordinate.\n * @api\n */\n LineString.prototype.appendCoordinate = function appendCoordinate (coordinate) {\n if (!this.flatCoordinates) {\n this.flatCoordinates = coordinate.slice();\n } else {\n extend(this.flatCoordinates, coordinate);\n }\n this.changed();\n };\n\n /**\n * Make a complete copy of the geometry.\n * @return {!LineString} Clone.\n * @override\n * @api\n */\n LineString.prototype.clone = function clone () {\n return new LineString(this.flatCoordinates.slice(), this.layout);\n };\n\n /**\n * @inheritDoc\n */\n LineString.prototype.closestPointXY = function closestPointXY (x, y, closestPoint, minSquaredDistance) {\n if (minSquaredDistance < closestSquaredDistanceXY(this.getExtent(), x, y)) {\n return minSquaredDistance;\n }\n if (this.maxDeltaRevision_ != this.getRevision()) {\n this.maxDelta_ = Math.sqrt(maxSquaredDelta(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, 0));\n this.maxDeltaRevision_ = this.getRevision();\n }\n return assignClosestPoint(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,\n this.maxDelta_, false, x, y, closestPoint, minSquaredDistance);\n };\n\n /**\n * Iterate over each segment, calling the provided callback.\n * If the callback returns a truthy value the function returns that\n * value immediately. Otherwise the function returns `false`.\n *\n * @param {function(this: S, import(\"../coordinate.js\").Coordinate, import(\"../coordinate.js\").Coordinate): T} callback Function\n * called for each segment.\n * @return {T|boolean} Value.\n * @template T,S\n * @api\n */\n LineString.prototype.forEachSegment = function forEachSegment$1 (callback) {\n return forEachSegment(this.flatCoordinates, 0, this.flatCoordinates.length, this.stride, callback);\n };\n\n /**\n * Returns the coordinate at `m` using linear interpolation, or `null` if no\n * such coordinate exists.\n *\n * `opt_extrapolate` controls extrapolation beyond the range of Ms in the\n * MultiLineString. If `opt_extrapolate` is `true` then Ms less than the first\n * M will return the first coordinate and Ms greater than the last M will\n * return the last coordinate.\n *\n * @param {number} m M.\n * @param {boolean=} opt_extrapolate Extrapolate. Default is `false`.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinate.\n * @api\n */\n LineString.prototype.getCoordinateAtM = function getCoordinateAtM (m, opt_extrapolate) {\n if (this.layout != GeometryLayout.XYM &&\n this.layout != GeometryLayout.XYZM) {\n return null;\n }\n var extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;\n return lineStringCoordinateAtM(this.flatCoordinates, 0,\n this.flatCoordinates.length, this.stride, m, extrapolate);\n };\n\n /**\n * Return the coordinates of the linestring.\n * @return {Array} Coordinates.\n * @override\n * @api\n */\n LineString.prototype.getCoordinates = function getCoordinates () {\n return inflateCoordinates(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);\n };\n\n /**\n * Return the coordinate at the provided fraction along the linestring.\n * The `fraction` is a number between 0 and 1, where 0 is the start of the\n * linestring and 1 is the end.\n * @param {number} fraction Fraction.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_dest Optional coordinate whose values will\n * be modified. If not provided, a new coordinate will be returned.\n * @return {import(\"../coordinate.js\").Coordinate} Coordinate of the interpolated point.\n * @api\n */\n LineString.prototype.getCoordinateAt = function getCoordinateAt (fraction, opt_dest) {\n return interpolatePoint(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,\n fraction, opt_dest);\n };\n\n /**\n * Return the length of the linestring on projected plane.\n * @return {number} Length (on projected plane).\n * @api\n */\n LineString.prototype.getLength = function getLength () {\n return lineStringLength(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride);\n };\n\n /**\n * @return {Array} Flat midpoint.\n */\n LineString.prototype.getFlatMidpoint = function getFlatMidpoint () {\n if (this.flatMidpointRevision_ != this.getRevision()) {\n this.flatMidpoint_ = this.getCoordinateAt(0.5, this.flatMidpoint_);\n this.flatMidpointRevision_ = this.getRevision();\n }\n return this.flatMidpoint_;\n };\n\n /**\n * @inheritDoc\n */\n LineString.prototype.getSimplifiedGeometryInternal = function getSimplifiedGeometryInternal (squaredTolerance) {\n var simplifiedFlatCoordinates = [];\n simplifiedFlatCoordinates.length = douglasPeucker(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,\n squaredTolerance, simplifiedFlatCoordinates, 0);\n return new LineString(simplifiedFlatCoordinates, GeometryLayout.XY);\n };\n\n /**\n * @inheritDoc\n * @api\n */\n LineString.prototype.getType = function getType () {\n return GeometryType.LINE_STRING;\n };\n\n /**\n * @inheritDoc\n * @api\n */\n LineString.prototype.intersectsExtent = function intersectsExtent (extent) {\n return intersectsLineString(\n this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,\n extent);\n };\n\n /**\n * Set the coordinates of the linestring.\n * @param {!Array} coordinates Coordinates.\n * @param {GeometryLayout=} opt_layout Layout.\n * @override\n * @api\n */\n LineString.prototype.setCoordinates = function setCoordinates (coordinates, opt_layout) {\n this.setLayout(opt_layout, coordinates, 1);\n if (!this.flatCoordinates) {\n this.flatCoordinates = [];\n }\n this.flatCoordinates.length = deflateCoordinates(\n this.flatCoordinates, 0, coordinates, this.stride);\n this.changed();\n };\n\n return LineString;\n}(SimpleGeometry));\n\n\nexport default LineString;\n\n//# sourceMappingURL=LineString.js.map","/**\n * @module ol/geom/flat/geodesic\n */\nimport {squaredSegmentDistance, toRadians, toDegrees} from '../../math.js';\nimport {get as getProjection, getTransform} from '../../proj.js';\n\n\n/**\n * @param {function(number): import(\"../../coordinate.js\").Coordinate} interpolate Interpolate function.\n * @param {import(\"../../proj.js\").TransformFunction} transform Transform from longitude/latitude to\n * projected coordinates.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array} Flat coordinates.\n */\nfunction line(interpolate, transform, squaredTolerance) {\n // FIXME reduce garbage generation\n // FIXME optimize stack operations\n\n /** @type {Array} */\n var flatCoordinates = [];\n\n var geoA = interpolate(0);\n var geoB = interpolate(1);\n\n var a = transform(geoA);\n var b = transform(geoB);\n\n /** @type {Array} */\n var geoStack = [geoB, geoA];\n /** @type {Array} */\n var stack = [b, a];\n /** @type {Array} */\n var fractionStack = [1, 0];\n\n /** @type {!Object} */\n var fractions = {};\n\n var maxIterations = 1e5;\n var geoM, m, fracA, fracB, fracM, key;\n\n while (--maxIterations > 0 && fractionStack.length > 0) {\n // Pop the a coordinate off the stack\n fracA = fractionStack.pop();\n geoA = geoStack.pop();\n a = stack.pop();\n // Add the a coordinate if it has not been added yet\n key = fracA.toString();\n if (!(key in fractions)) {\n flatCoordinates.push(a[0], a[1]);\n fractions[key] = true;\n }\n // Pop the b coordinate off the stack\n fracB = fractionStack.pop();\n geoB = geoStack.pop();\n b = stack.pop();\n // Find the m point between the a and b coordinates\n fracM = (fracA + fracB) / 2;\n geoM = interpolate(fracM);\n m = transform(geoM);\n if (squaredSegmentDistance(m[0], m[1], a[0], a[1],\n b[0], b[1]) < squaredTolerance) {\n // If the m point is sufficiently close to the straight line, then we\n // discard it. Just use the b coordinate and move on to the next line\n // segment.\n flatCoordinates.push(b[0], b[1]);\n key = fracB.toString();\n fractions[key] = true;\n } else {\n // Otherwise, we need to subdivide the current line segment. Split it\n // into two and push the two line segments onto the stack.\n fractionStack.push(fracB, fracM, fracM, fracA);\n stack.push(b, m, m, a);\n geoStack.push(geoB, geoM, geoM, geoA);\n }\n }\n\n return flatCoordinates;\n}\n\n\n/**\n * Generate a great-circle arcs between two lat/lon points.\n * @param {number} lon1 Longitude 1 in degrees.\n * @param {number} lat1 Latitude 1 in degrees.\n * @param {number} lon2 Longitude 2 in degrees.\n * @param {number} lat2 Latitude 2 in degrees.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array} Flat coordinates.\n */\nexport function greatCircleArc(lon1, lat1, lon2, lat2, projection, squaredTolerance) {\n var geoProjection = getProjection('EPSG:4326');\n\n var cosLat1 = Math.cos(toRadians(lat1));\n var sinLat1 = Math.sin(toRadians(lat1));\n var cosLat2 = Math.cos(toRadians(lat2));\n var sinLat2 = Math.sin(toRadians(lat2));\n var cosDeltaLon = Math.cos(toRadians(lon2 - lon1));\n var sinDeltaLon = Math.sin(toRadians(lon2 - lon1));\n var d = sinLat1 * sinLat2 + cosLat1 * cosLat2 * cosDeltaLon;\n\n return line(\n /**\n * @param {number} frac Fraction.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\n function(frac) {\n if (1 <= d) {\n return [lon2, lat2];\n }\n var D = frac * Math.acos(d);\n var cosD = Math.cos(D);\n var sinD = Math.sin(D);\n var y = sinDeltaLon * cosLat2;\n var x = cosLat1 * sinLat2 - sinLat1 * cosLat2 * cosDeltaLon;\n var theta = Math.atan2(y, x);\n var lat = Math.asin(sinLat1 * cosD + cosLat1 * sinD * Math.cos(theta));\n var lon = toRadians(lon1) +\n Math.atan2(Math.sin(theta) * sinD * cosLat1,\n cosD - sinLat1 * Math.sin(lat));\n return [toDegrees(lon), toDegrees(lat)];\n }, getTransform(geoProjection, projection), squaredTolerance);\n}\n\n\n/**\n * Generate a meridian (line at constant longitude).\n * @param {number} lon Longitude.\n * @param {number} lat1 Latitude 1.\n * @param {number} lat2 Latitude 2.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array} Flat coordinates.\n */\nexport function meridian(lon, lat1, lat2, projection, squaredTolerance) {\n var epsg4326Projection = getProjection('EPSG:4326');\n return line(\n /**\n * @param {number} frac Fraction.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\n function(frac) {\n return [lon, lat1 + ((lat2 - lat1) * frac)];\n },\n getTransform(epsg4326Projection, projection), squaredTolerance);\n}\n\n\n/**\n * Generate a parallel (line at constant latitude).\n * @param {number} lat Latitude.\n * @param {number} lon1 Longitude 1.\n * @param {number} lon2 Longitude 2.\n * @param {import(\"../../proj/Projection.js\").default} projection Projection.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {Array} Flat coordinates.\n */\nexport function parallel(lat, lon1, lon2, projection, squaredTolerance) {\n var epsg4326Projection = getProjection('EPSG:4326');\n return line(\n /**\n * @param {number} frac Fraction.\n * @return {import(\"../../coordinate.js\").Coordinate} Coordinate.\n */\n function(frac) {\n return [lon1 + ((lon2 - lon1) * frac), lat];\n },\n getTransform(epsg4326Projection, projection), squaredTolerance);\n}\n\n//# sourceMappingURL=geodesic.js.map","/**\n * @module ol/render/EventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n /**\n * @event module:ol/render/Event~RenderEvent#postcompose\n * @api\n */\n POSTCOMPOSE: 'postcompose',\n /**\n * @event module:ol/render/Event~RenderEvent#precompose\n * @api\n */\n PRECOMPOSE: 'precompose',\n /**\n * @event module:ol/render/Event~RenderEvent#render\n * @api\n */\n RENDER: 'render',\n /**\n * Triggered when rendering is complete, i.e. all sources and tiles have\n * finished loading for the current viewport, and all tiles are faded in.\n * @event module:ol/render/Event~RenderEvent#rendercomplete\n * @api\n */\n RENDERCOMPLETE: 'rendercomplete'\n};\n\n//# sourceMappingURL=EventType.js.map","/**\n * @module ol/color\n */\nimport {assert} from './asserts.js';\nimport {clamp} from './math.js';\n\n\n/**\n * A color represented as a short array [red, green, blue, alpha].\n * red, green, and blue should be integers in the range 0..255 inclusive.\n * alpha should be a float in the range 0..1 inclusive. If no alpha value is\n * given then `1` will be used.\n * @typedef {Array} Color\n * @api\n */\n\n\n/**\n * This RegExp matches # followed by 3, 4, 6, or 8 hex digits.\n * @const\n * @type {RegExp}\n * @private\n */\nvar HEX_COLOR_RE_ = /^#([a-f0-9]{3}|[a-f0-9]{4}(?:[a-f0-9]{2}){0,2})$/i;\n\n\n/**\n * Regular expression for matching potential named color style strings.\n * @const\n * @type {RegExp}\n * @private\n */\nvar NAMED_COLOR_RE_ = /^([a-z]*)$/i;\n\n\n/**\n * Return the color as an rgba string.\n * @param {Color|string} color Color.\n * @return {string} Rgba string.\n * @api\n */\nexport function asString(color) {\n if (typeof color === 'string') {\n return color;\n } else {\n return toString(color);\n }\n}\n\n/**\n * Return named color as an rgba string.\n * @param {string} color Named color.\n * @return {string} Rgb string.\n */\nfunction fromNamed(color) {\n var el = document.createElement('div');\n el.style.color = color;\n if (el.style.color !== '') {\n document.body.appendChild(el);\n var rgb = getComputedStyle(el).color;\n document.body.removeChild(el);\n return rgb;\n } else {\n return '';\n }\n}\n\n\n/**\n * @param {string} s String.\n * @return {Color} Color.\n */\nexport var fromString = (\n function() {\n\n // We maintain a small cache of parsed strings. To provide cheap LRU-like\n // semantics, whenever the cache grows too large we simply delete an\n // arbitrary 25% of the entries.\n\n /**\n * @const\n * @type {number}\n */\n var MAX_CACHE_SIZE = 1024;\n\n /**\n * @type {Object}\n */\n var cache = {};\n\n /**\n * @type {number}\n */\n var cacheSize = 0;\n\n return (\n /**\n * @param {string} s String.\n * @return {Color} Color.\n */\n function(s) {\n var color;\n if (cache.hasOwnProperty(s)) {\n color = cache[s];\n } else {\n if (cacheSize >= MAX_CACHE_SIZE) {\n var i = 0;\n for (var key in cache) {\n if ((i++ & 3) === 0) {\n delete cache[key];\n --cacheSize;\n }\n }\n }\n color = fromStringInternal_(s);\n cache[s] = color;\n ++cacheSize;\n }\n return color;\n }\n );\n\n })();\n\n/**\n * Return the color as an array. This function maintains a cache of calculated\n * arrays which means the result should not be modified.\n * @param {Color|string} color Color.\n * @return {Color} Color.\n * @api\n */\nexport function asArray(color) {\n if (Array.isArray(color)) {\n return color;\n } else {\n return fromString(color);\n }\n}\n\n/**\n * @param {string} s String.\n * @private\n * @return {Color} Color.\n */\nfunction fromStringInternal_(s) {\n var r, g, b, a, color;\n\n if (NAMED_COLOR_RE_.exec(s)) {\n s = fromNamed(s);\n }\n\n if (HEX_COLOR_RE_.exec(s)) { // hex\n var n = s.length - 1; // number of hex digits\n var d; // number of digits per channel\n if (n <= 4) {\n d = 1;\n } else {\n d = 2;\n }\n var hasAlpha = n === 4 || n === 8;\n r = parseInt(s.substr(1 + 0 * d, d), 16);\n g = parseInt(s.substr(1 + 1 * d, d), 16);\n b = parseInt(s.substr(1 + 2 * d, d), 16);\n if (hasAlpha) {\n a = parseInt(s.substr(1 + 3 * d, d), 16);\n } else {\n a = 255;\n }\n if (d == 1) {\n r = (r << 4) + r;\n g = (g << 4) + g;\n b = (b << 4) + b;\n if (hasAlpha) {\n a = (a << 4) + a;\n }\n }\n color = [r, g, b, a / 255];\n } else if (s.indexOf('rgba(') == 0) { // rgba()\n color = s.slice(5, -1).split(',').map(Number);\n normalize(color);\n } else if (s.indexOf('rgb(') == 0) { // rgb()\n color = s.slice(4, -1).split(',').map(Number);\n color.push(1);\n normalize(color);\n } else {\n assert(false, 14); // Invalid color\n }\n return color;\n}\n\n\n/**\n * TODO this function is only used in the test, we probably shouldn't export it\n * @param {Color} color Color.\n * @return {Color} Clamped color.\n */\nexport function normalize(color) {\n color[0] = clamp((color[0] + 0.5) | 0, 0, 255);\n color[1] = clamp((color[1] + 0.5) | 0, 0, 255);\n color[2] = clamp((color[2] + 0.5) | 0, 0, 255);\n color[3] = clamp(color[3], 0, 1);\n return color;\n}\n\n\n/**\n * @param {Color} color Color.\n * @return {string} String.\n */\nexport function toString(color) {\n var r = color[0];\n if (r != (r | 0)) {\n r = (r + 0.5) | 0;\n }\n var g = color[1];\n if (g != (g | 0)) {\n g = (g + 0.5) | 0;\n }\n var b = color[2];\n if (b != (b | 0)) {\n b = (b + 0.5) | 0;\n }\n var a = color[3] === undefined ? 1 : color[3];\n return 'rgba(' + r + ',' + g + ',' + b + ',' + a + ')';\n}\n\n//# sourceMappingURL=color.js.map","/**\n * @module ol/style/Fill\n */\nimport {getUid} from '../util.js';\nimport {asString} from '../color.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} [color] A color, gradient or pattern.\n * See {@link module:ol/color~Color} and {@link module:ol/colorlike~ColorLike} for possible formats.\n * Default null; if null, the Canvas/renderer default black will be used.\n */\n\n\n/**\n * @classdesc\n * Set fill style for vector features.\n * @api\n */\nvar Fill = function Fill(opt_options) {\n\n var options = opt_options || {};\n\n /**\n * @private\n * @type {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike}\n */\n this.color_ = options.color !== undefined ? options.color : null;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.checksum_ = undefined;\n};\n\n/**\n * Clones the style. The color is not cloned if it is an {@link module:ol/colorlike~ColorLike}.\n * @return {Fill} The cloned style.\n * @api\n */\nFill.prototype.clone = function clone () {\n var color = this.getColor();\n return new Fill({\n color: Array.isArray(color) ? color.slice() : color || undefined\n });\n};\n\n/**\n * Get the fill color.\n * @return {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} Color.\n * @api\n */\nFill.prototype.getColor = function getColor () {\n return this.color_;\n};\n\n/**\n * Set the color.\n *\n * @param {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} color Color.\n * @api\n */\nFill.prototype.setColor = function setColor (color) {\n this.color_ = color;\n this.checksum_ = undefined;\n};\n\n/**\n * @return {string} The checksum.\n */\nFill.prototype.getChecksum = function getChecksum () {\n if (this.checksum_ === undefined) {\n var color = this.color_;\n if (color) {\n if (Array.isArray(color) || typeof color == 'string') {\n this.checksum_ = 'f' + asString(/** @type {import(\"../color.js\").Color|string} */ (color));\n } else {\n this.checksum_ = getUid(this.color_);\n }\n } else {\n this.checksum_ = 'f-';\n }\n }\n\n return this.checksum_;\n};\n\nexport default Fill;\n\n//# sourceMappingURL=Fill.js.map","/**\n * @module ol/style/Stroke\n */\nimport {getUid} from '../util.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} [color] A color, gradient or pattern.\n * See {@link module:ol/color~Color} and {@link module:ol/colorlike~ColorLike} for possible formats.\n * Default null; if null, the Canvas/renderer default black will be used.\n * @property {string} [lineCap='round'] Line cap style: `butt`, `round`, or `square`.\n * @property {string} [lineJoin='round'] Line join style: `bevel`, `round`, or `miter`.\n * @property {Array} [lineDash] Line dash pattern. Default is `undefined` (no dash).\n * Please note that Internet Explorer 10 and lower do not support the `setLineDash` method on\n * the `CanvasRenderingContext2D` and therefore this option will have no visual effect in these browsers.\n * @property {number} [lineDashOffset=0] Line dash offset.\n * @property {number} [miterLimit=10] Miter limit.\n * @property {number} [width] Width.\n */\n\n\n/**\n * @classdesc\n * Set stroke style for vector features.\n * Note that the defaults given are the Canvas defaults, which will be used if\n * option is not defined. The `get` functions return whatever was entered in\n * the options; they will not return the default.\n * @api\n */\nvar Stroke = function Stroke(opt_options) {\n\n var options = opt_options || {};\n\n /**\n * @private\n * @type {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike}\n */\n this.color_ = options.color !== undefined ? options.color : null;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.lineCap_ = options.lineCap;\n\n /**\n * @private\n * @type {Array}\n */\n this.lineDash_ = options.lineDash !== undefined ? options.lineDash : null;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.lineDashOffset_ = options.lineDashOffset;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.lineJoin_ = options.lineJoin;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.miterLimit_ = options.miterLimit;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.width_ = options.width;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.checksum_ = undefined;\n};\n\n/**\n * Clones the style.\n * @return {Stroke} The cloned style.\n * @api\n */\nStroke.prototype.clone = function clone () {\n var color = this.getColor();\n return new Stroke({\n color: Array.isArray(color) ? color.slice() : color || undefined,\n lineCap: this.getLineCap(),\n lineDash: this.getLineDash() ? this.getLineDash().slice() : undefined,\n lineDashOffset: this.getLineDashOffset(),\n lineJoin: this.getLineJoin(),\n miterLimit: this.getMiterLimit(),\n width: this.getWidth()\n });\n};\n\n/**\n * Get the stroke color.\n * @return {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} Color.\n * @api\n */\nStroke.prototype.getColor = function getColor () {\n return this.color_;\n};\n\n/**\n * Get the line cap type for the stroke.\n * @return {string|undefined} Line cap.\n * @api\n */\nStroke.prototype.getLineCap = function getLineCap () {\n return this.lineCap_;\n};\n\n/**\n * Get the line dash style for the stroke.\n * @return {Array} Line dash.\n * @api\n */\nStroke.prototype.getLineDash = function getLineDash () {\n return this.lineDash_;\n};\n\n/**\n * Get the line dash offset for the stroke.\n * @return {number|undefined} Line dash offset.\n * @api\n */\nStroke.prototype.getLineDashOffset = function getLineDashOffset () {\n return this.lineDashOffset_;\n};\n\n/**\n * Get the line join type for the stroke.\n * @return {string|undefined} Line join.\n * @api\n */\nStroke.prototype.getLineJoin = function getLineJoin () {\n return this.lineJoin_;\n};\n\n/**\n * Get the miter limit for the stroke.\n * @return {number|undefined} Miter limit.\n * @api\n */\nStroke.prototype.getMiterLimit = function getMiterLimit () {\n return this.miterLimit_;\n};\n\n/**\n * Get the stroke width.\n * @return {number|undefined} Width.\n * @api\n */\nStroke.prototype.getWidth = function getWidth () {\n return this.width_;\n};\n\n/**\n * Set the color.\n *\n * @param {import(\"../color.js\").Color|import(\"../colorlike.js\").ColorLike} color Color.\n * @api\n */\nStroke.prototype.setColor = function setColor (color) {\n this.color_ = color;\n this.checksum_ = undefined;\n};\n\n/**\n * Set the line cap.\n *\n * @param {string|undefined} lineCap Line cap.\n * @api\n */\nStroke.prototype.setLineCap = function setLineCap (lineCap) {\n this.lineCap_ = lineCap;\n this.checksum_ = undefined;\n};\n\n/**\n * Set the line dash.\n *\n * Please note that Internet Explorer 10 and lower [do not support][mdn] the\n * `setLineDash` method on the `CanvasRenderingContext2D` and therefore this\n * property will have no visual effect in these browsers.\n *\n * [mdn]: https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility\n *\n * @param {Array} lineDash Line dash.\n * @api\n */\nStroke.prototype.setLineDash = function setLineDash (lineDash) {\n this.lineDash_ = lineDash;\n this.checksum_ = undefined;\n};\n\n/**\n * Set the line dash offset.\n *\n * @param {number|undefined} lineDashOffset Line dash offset.\n * @api\n */\nStroke.prototype.setLineDashOffset = function setLineDashOffset (lineDashOffset) {\n this.lineDashOffset_ = lineDashOffset;\n this.checksum_ = undefined;\n};\n\n/**\n * Set the line join.\n *\n * @param {string|undefined} lineJoin Line join.\n * @api\n */\nStroke.prototype.setLineJoin = function setLineJoin (lineJoin) {\n this.lineJoin_ = lineJoin;\n this.checksum_ = undefined;\n};\n\n/**\n * Set the miter limit.\n *\n * @param {number|undefined} miterLimit Miter limit.\n * @api\n */\nStroke.prototype.setMiterLimit = function setMiterLimit (miterLimit) {\n this.miterLimit_ = miterLimit;\n this.checksum_ = undefined;\n};\n\n/**\n * Set the width.\n *\n * @param {number|undefined} width Width.\n * @api\n */\nStroke.prototype.setWidth = function setWidth (width) {\n this.width_ = width;\n this.checksum_ = undefined;\n};\n\n/**\n * @return {string} The checksum.\n */\nStroke.prototype.getChecksum = function getChecksum () {\n if (this.checksum_ === undefined) {\n this.checksum_ = 's';\n if (this.color_) {\n if (typeof this.color_ === 'string') {\n this.checksum_ += this.color_;\n } else {\n this.checksum_ += getUid(this.color_);\n }\n } else {\n this.checksum_ += '-';\n }\n this.checksum_ += ',' +\n (this.lineCap_ !== undefined ?\n this.lineCap_.toString() : '-') + ',' +\n (this.lineDash_ ?\n this.lineDash_.toString() : '-') + ',' +\n (this.lineDashOffset_ !== undefined ?\n this.lineDashOffset_ : '-') + ',' +\n (this.lineJoin_ !== undefined ?\n this.lineJoin_ : '-') + ',' +\n (this.miterLimit_ !== undefined ?\n this.miterLimit_.toString() : '-') + ',' +\n (this.width_ !== undefined ?\n this.width_.toString() : '-');\n }\n\n return this.checksum_;\n};\n\nexport default Stroke;\n\n//# sourceMappingURL=Stroke.js.map","/**\n * @module ol/style/TextPlacement\n */\n\n/**\n * Text placement. One of `'point'`, `'line'`. Default is `'point'`. Note that\n * `'line'` requires the underlying geometry to be a {@link module:ol/geom/LineString~LineString},\n * {@link module:ol/geom/Polygon~Polygon}, {@link module:ol/geom/MultiLineString~MultiLineString} or\n * {@link module:ol/geom/MultiPolygon~MultiPolygon}.\n * @enum {string}\n */\nexport default {\n POINT: 'point',\n LINE: 'line'\n};\n\n//# sourceMappingURL=TextPlacement.js.map","/**\n * @module ol/style/Text\n */\nimport Fill from './Fill.js';\nimport TextPlacement from './TextPlacement.js';\n\n\n/**\n * The default fill color to use if no fill was set at construction time; a\n * blackish `#333`.\n *\n * @const {string}\n */\nvar DEFAULT_FILL_COLOR = '#333';\n\n\n/**\n * @typedef {Object} Options\n * @property {string} [font] Font style as CSS 'font' value, see:\n * https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/font. Default is '10px sans-serif'\n * @property {number} [maxAngle] When `placement` is set to `'line'`, allow a maximum angle between adjacent characters.\n * The expected value is in radians, and the default is 45° (`Math.PI / 4`).\n * @property {number} [offsetX=0] Horizontal text offset in pixels. A positive will shift the text right.\n * @property {number} [offsetY=0] Vertical text offset in pixels. A positive will shift the text down.\n * @property {boolean} [overflow=false] For polygon labels or when `placement` is set to `'line'`, allow text to exceed\n * the width of the polygon at the label position or the length of the path that it follows.\n * @property {import(\"./TextPlacement.js\").default|string} [placement] Text placement.\n * @property {number} [scale] Scale.\n * @property {boolean} [rotateWithView=false] Whether to rotate the text with the view.\n * @property {number} [rotation=0] Rotation in radians (positive rotation clockwise).\n * @property {string} [text] Text content.\n * @property {string} [textAlign] Text alignment. Possible values: 'left', 'right', 'center', 'end' or 'start'.\n * Default is 'center' for `placement: 'point'`. For `placement: 'line'`, the default is to let the renderer choose a\n * placement where `maxAngle` is not exceeded.\n * @property {string} [textBaseline='middle'] Text base line. Possible values: 'bottom', 'top', 'middle', 'alphabetic',\n * 'hanging', 'ideographic'.\n * @property {import(\"./Fill.js\").default} [fill] Fill style. If none is provided, we'll use a dark fill-style (#333).\n * @property {import(\"./Stroke.js\").default} [stroke] Stroke style.\n * @property {import(\"./Fill.js\").default} [backgroundFill] Fill style for the text background when `placement` is\n * `'point'`. Default is no fill.\n * @property {import(\"./Stroke.js\").default} [backgroundStroke] Stroke style for the text background when `placement`\n * is `'point'`. Default is no stroke.\n * @property {Array} [padding=[0, 0, 0, 0]] Padding in pixels around the text for decluttering and background. The order of\n * values in the array is `[top, right, bottom, left]`.\n */\n\n\n/**\n * @classdesc\n * Set text style for vector features.\n * @api\n */\nvar Text = function Text(opt_options) {\n\n var options = opt_options || {};\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.font_ = options.font;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.rotation_ = options.rotation;\n\n /**\n * @private\n * @type {boolean|undefined}\n */\n this.rotateWithView_ = options.rotateWithView;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.scale_ = options.scale;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.text_ = options.text;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.textAlign_ = options.textAlign;\n\n /**\n * @private\n * @type {string|undefined}\n */\n this.textBaseline_ = options.textBaseline;\n\n /**\n * @private\n * @type {import(\"./Fill.js\").default}\n */\n this.fill_ = options.fill !== undefined ? options.fill :\n new Fill({color: DEFAULT_FILL_COLOR});\n\n /**\n * @private\n * @type {number}\n */\n this.maxAngle_ = options.maxAngle !== undefined ? options.maxAngle : Math.PI / 4;\n\n /**\n * @private\n * @type {import(\"./TextPlacement.js\").default|string}\n */\n this.placement_ = options.placement !== undefined ? options.placement : TextPlacement.POINT;\n\n /**\n * @private\n * @type {boolean}\n */\n this.overflow_ = !!options.overflow;\n\n /**\n * @private\n * @type {import(\"./Stroke.js\").default}\n */\n this.stroke_ = options.stroke !== undefined ? options.stroke : null;\n\n /**\n * @private\n * @type {number}\n */\n this.offsetX_ = options.offsetX !== undefined ? options.offsetX : 0;\n\n /**\n * @private\n * @type {number}\n */\n this.offsetY_ = options.offsetY !== undefined ? options.offsetY : 0;\n\n /**\n * @private\n * @type {import(\"./Fill.js\").default}\n */\n this.backgroundFill_ = options.backgroundFill ? options.backgroundFill : null;\n\n /**\n * @private\n * @type {import(\"./Stroke.js\").default}\n */\n this.backgroundStroke_ = options.backgroundStroke ? options.backgroundStroke : null;\n\n /**\n * @private\n * @type {Array}\n */\n this.padding_ = options.padding === undefined ? null : options.padding;\n};\n\n/**\n* Clones the style.\n* @return {Text} The cloned style.\n* @api\n*/\nText.prototype.clone = function clone () {\n return new Text({\n font: this.getFont(),\n placement: this.getPlacement(),\n maxAngle: this.getMaxAngle(),\n overflow: this.getOverflow(),\n rotation: this.getRotation(),\n rotateWithView: this.getRotateWithView(),\n scale: this.getScale(),\n text: this.getText(),\n textAlign: this.getTextAlign(),\n textBaseline: this.getTextBaseline(),\n fill: this.getFill() ? this.getFill().clone() : undefined,\n stroke: this.getStroke() ? this.getStroke().clone() : undefined,\n offsetX: this.getOffsetX(),\n offsetY: this.getOffsetY(),\n backgroundFill: this.getBackgroundFill() ? this.getBackgroundFill().clone() : undefined,\n backgroundStroke: this.getBackgroundStroke() ? this.getBackgroundStroke().clone() : undefined\n });\n};\n\n/**\n* Get the `overflow` configuration.\n* @return {boolean} Let text overflow the length of the path they follow.\n* @api\n*/\nText.prototype.getOverflow = function getOverflow () {\n return this.overflow_;\n};\n\n/**\n* Get the font name.\n* @return {string|undefined} Font.\n* @api\n*/\nText.prototype.getFont = function getFont () {\n return this.font_;\n};\n\n/**\n* Get the maximum angle between adjacent characters.\n* @return {number} Angle in radians.\n* @api\n*/\nText.prototype.getMaxAngle = function getMaxAngle () {\n return this.maxAngle_;\n};\n\n/**\n* Get the label placement.\n* @return {import(\"./TextPlacement.js\").default|string} Text placement.\n* @api\n*/\nText.prototype.getPlacement = function getPlacement () {\n return this.placement_;\n};\n\n/**\n* Get the x-offset for the text.\n* @return {number} Horizontal text offset.\n* @api\n*/\nText.prototype.getOffsetX = function getOffsetX () {\n return this.offsetX_;\n};\n\n/**\n* Get the y-offset for the text.\n* @return {number} Vertical text offset.\n* @api\n*/\nText.prototype.getOffsetY = function getOffsetY () {\n return this.offsetY_;\n};\n\n/**\n* Get the fill style for the text.\n* @return {import(\"./Fill.js\").default} Fill style.\n* @api\n*/\nText.prototype.getFill = function getFill () {\n return this.fill_;\n};\n\n/**\n* Determine whether the text rotates with the map.\n* @return {boolean|undefined} Rotate with map.\n* @api\n*/\nText.prototype.getRotateWithView = function getRotateWithView () {\n return this.rotateWithView_;\n};\n\n/**\n* Get the text rotation.\n* @return {number|undefined} Rotation.\n* @api\n*/\nText.prototype.getRotation = function getRotation () {\n return this.rotation_;\n};\n\n/**\n* Get the text scale.\n* @return {number|undefined} Scale.\n* @api\n*/\nText.prototype.getScale = function getScale () {\n return this.scale_;\n};\n\n/**\n* Get the stroke style for the text.\n* @return {import(\"./Stroke.js\").default} Stroke style.\n* @api\n*/\nText.prototype.getStroke = function getStroke () {\n return this.stroke_;\n};\n\n/**\n* Get the text to be rendered.\n* @return {string|undefined} Text.\n* @api\n*/\nText.prototype.getText = function getText () {\n return this.text_;\n};\n\n/**\n* Get the text alignment.\n* @return {string|undefined} Text align.\n* @api\n*/\nText.prototype.getTextAlign = function getTextAlign () {\n return this.textAlign_;\n};\n\n/**\n* Get the text baseline.\n* @return {string|undefined} Text baseline.\n* @api\n*/\nText.prototype.getTextBaseline = function getTextBaseline () {\n return this.textBaseline_;\n};\n\n/**\n* Get the background fill style for the text.\n* @return {import(\"./Fill.js\").default} Fill style.\n* @api\n*/\nText.prototype.getBackgroundFill = function getBackgroundFill () {\n return this.backgroundFill_;\n};\n\n/**\n* Get the background stroke style for the text.\n* @return {import(\"./Stroke.js\").default} Stroke style.\n* @api\n*/\nText.prototype.getBackgroundStroke = function getBackgroundStroke () {\n return this.backgroundStroke_;\n};\n\n/**\n* Get the padding for the text.\n* @return {Array} Padding.\n* @api\n*/\nText.prototype.getPadding = function getPadding () {\n return this.padding_;\n};\n\n/**\n* Set the `overflow` property.\n*\n* @param {boolean} overflow Let text overflow the path that it follows.\n* @api\n*/\nText.prototype.setOverflow = function setOverflow (overflow) {\n this.overflow_ = overflow;\n};\n\n/**\n* Set the font.\n*\n* @param {string|undefined} font Font.\n* @api\n*/\nText.prototype.setFont = function setFont (font) {\n this.font_ = font;\n};\n\n/**\n* Set the maximum angle between adjacent characters.\n*\n* @param {number} maxAngle Angle in radians.\n* @api\n*/\nText.prototype.setMaxAngle = function setMaxAngle (maxAngle) {\n this.maxAngle_ = maxAngle;\n};\n\n/**\n* Set the x offset.\n*\n* @param {number} offsetX Horizontal text offset.\n* @api\n*/\nText.prototype.setOffsetX = function setOffsetX (offsetX) {\n this.offsetX_ = offsetX;\n};\n\n/**\n* Set the y offset.\n*\n* @param {number} offsetY Vertical text offset.\n* @api\n*/\nText.prototype.setOffsetY = function setOffsetY (offsetY) {\n this.offsetY_ = offsetY;\n};\n\n/**\n* Set the text placement.\n*\n* @param {import(\"./TextPlacement.js\").default|string} placement Placement.\n* @api\n*/\nText.prototype.setPlacement = function setPlacement (placement) {\n this.placement_ = placement;\n};\n\n/**\n* Set the fill.\n*\n* @param {import(\"./Fill.js\").default} fill Fill style.\n* @api\n*/\nText.prototype.setFill = function setFill (fill) {\n this.fill_ = fill;\n};\n\n/**\n* Set the rotation.\n*\n* @param {number|undefined} rotation Rotation.\n* @api\n*/\nText.prototype.setRotation = function setRotation (rotation) {\n this.rotation_ = rotation;\n};\n\n/**\n* Set the scale.\n*\n* @param {number|undefined} scale Scale.\n* @api\n*/\nText.prototype.setScale = function setScale (scale) {\n this.scale_ = scale;\n};\n\n/**\n* Set the stroke.\n*\n* @param {import(\"./Stroke.js\").default} stroke Stroke style.\n* @api\n*/\nText.prototype.setStroke = function setStroke (stroke) {\n this.stroke_ = stroke;\n};\n\n/**\n* Set the text.\n*\n* @param {string|undefined} text Text.\n* @api\n*/\nText.prototype.setText = function setText (text) {\n this.text_ = text;\n};\n\n/**\n* Set the text alignment.\n*\n* @param {string|undefined} textAlign Text align.\n* @api\n*/\nText.prototype.setTextAlign = function setTextAlign (textAlign) {\n this.textAlign_ = textAlign;\n};\n\n/**\n* Set the text baseline.\n*\n* @param {string|undefined} textBaseline Text baseline.\n* @api\n*/\nText.prototype.setTextBaseline = function setTextBaseline (textBaseline) {\n this.textBaseline_ = textBaseline;\n};\n\n/**\n* Set the background fill.\n*\n* @param {import(\"./Fill.js\").default} fill Fill style.\n* @api\n*/\nText.prototype.setBackgroundFill = function setBackgroundFill (fill) {\n this.backgroundFill_ = fill;\n};\n\n/**\n* Set the background stroke.\n*\n* @param {import(\"./Stroke.js\").default} stroke Stroke style.\n* @api\n*/\nText.prototype.setBackgroundStroke = function setBackgroundStroke (stroke) {\n this.backgroundStroke_ = stroke;\n};\n\n/**\n* Set the padding (`[top, right, bottom, left]`).\n*\n* @param {!Array} padding Padding.\n* @api\n*/\nText.prototype.setPadding = function setPadding (padding) {\n this.padding_ = padding;\n};\n\nexport default Text;\n\n//# sourceMappingURL=Text.js.map","/**\n * @module ol/Graticule\n */\nimport {degreesToStringHDMS} from './coordinate.js';\nimport {listen, unlistenByKey} from './events.js';\nimport {intersects, getCenter} from './extent.js';\nimport GeometryLayout from './geom/GeometryLayout.js';\nimport LineString from './geom/LineString.js';\nimport Point from './geom/Point.js';\nimport {meridian, parallel} from './geom/flat/geodesic.js';\nimport {clamp} from './math.js';\nimport {get as getProjection, equivalent as equivalentProjection, getTransform, transformExtent} from './proj.js';\nimport RenderEventType from './render/EventType.js';\nimport Fill from './style/Fill.js';\nimport Stroke from './style/Stroke.js';\nimport Text from './style/Text.js';\n\n\n/**\n * @type {Stroke}\n * @private\n * @const\n */\nvar DEFAULT_STROKE_STYLE = new Stroke({\n color: 'rgba(0,0,0,0.2)'\n});\n\n/**\n * @type {Array}\n * @private\n */\nvar INTERVALS = [\n 90, 45, 30, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001\n];\n\n/**\n * @typedef {Object} GraticuleLabelDataType\n * @property {Point} geom\n * @property {string} text\n */\n\n/**\n * @typedef {Object} Options\n * @property {import(\"./PluggableMap.js\").default} [map] Reference to an\n * {@link module:ol/Map~Map} object.\n * @property {number} [maxLines=100] The maximum number of meridians and\n * parallels from the center of the map. The default value of 100 means that at\n * most 200 meridians and 200 parallels will be displayed. The default value is\n * appropriate for conformal projections like Spherical Mercator. If you\n * increase the value, more lines will be drawn and the drawing performance will\n * decrease.\n * @property {Stroke} [strokeStyle='rgba(0,0,0,0.2)'] The\n * stroke style to use for drawing the graticule. If not provided, a not fully\n * opaque black will be used.\n * @property {number} [targetSize=100] The target size of the graticule cells,\n * in pixels.\n * @property {boolean} [showLabels=false] Render a label with the respective\n * latitude/longitude for each graticule line.\n * @property {function(number):string} [lonLabelFormatter] Label formatter for\n * longitudes. This function is called with the longitude as argument, and\n * should return a formatted string representing the longitude. By default,\n * labels are formatted as degrees, minutes, seconds and hemisphere.\n * @property {function(number):string} [latLabelFormatter] Label formatter for\n * latitudes. This function is called with the latitude as argument, and\n * should return a formatted string representing the latitude. By default,\n * labels are formatted as degrees, minutes, seconds and hemisphere.\n * @property {number} [lonLabelPosition=0] Longitude label position in fractions\n * (0..1) of view extent. 0 means at the bottom of the viewport, 1 means at the\n * top.\n * @property {number} [latLabelPosition=1] Latitude label position in fractions\n * (0..1) of view extent. 0 means at the left of the viewport, 1 means at the\n * right.\n * @property {Text} [lonLabelStyle] Longitude label text\n * style. If not provided, the following style will be used:\n * ```js\n * new Text({\n * font: '12px Calibri,sans-serif',\n * textBaseline: 'bottom',\n * fill: new Fill({\n * color: 'rgba(0,0,0,1)'\n * }),\n * stroke: new Stroke({\n * color: 'rgba(255,255,255,1)',\n * width: 3\n * })\n * });\n * ```\n * Note that the default's `textBaseline` configuration will not work well for\n * `lonLabelPosition` configurations that position labels close to the top of\n * the viewport.\n * @property {Text} [latLabelStyle] Latitude label text style.\n * If not provided, the following style will be used:\n * ```js\n * new Text({\n * font: '12px Calibri,sans-serif',\n * textAlign: 'end',\n * fill: new Fill({\n * color: 'rgba(0,0,0,1)'\n * }),\n * stroke: Stroke({\n * color: 'rgba(255,255,255,1)',\n * width: 3\n * })\n * });\n * ```\n * Note that the default's `textAlign` configuration will not work well for\n * `latLabelPosition` configurations that position labels close to the left of\n * the viewport.\n * @property {Array} [intervals=[90, 45, 30, 20, 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05, 0.01, 0.005, 0.002, 0.001]]\n * Intervals (in degrees) for the graticule. Example to limit graticules to 30 and 10 degrees intervals:\n * ```js\n * [30, 10]\n * ```\n */\n\n\n/**\n * Render a grid for a coordinate system on a map.\n * @api\n */\nvar Graticule = function Graticule(opt_options) {\n var options = opt_options || {};\n\n /**\n * @type {import(\"./PluggableMap.js\").default}\n * @private\n */\n this.map_ = null;\n\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n this.postcomposeListenerKey_ = null;\n\n /**\n * @type {import(\"./proj/Projection.js\").default}\n */\n this.projection_ = null;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLat_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLon_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minLat_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minLon_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLatP_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLonP_ = Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minLatP_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.minLonP_ = -Infinity;\n\n /**\n * @type {number}\n * @private\n */\n this.targetSize_ = options.targetSize !== undefined ? options.targetSize : 100;\n\n /**\n * @type {number}\n * @private\n */\n this.maxLines_ = options.maxLines !== undefined ? options.maxLines : 100;\n\n /**\n * @type {Array}\n * @private\n */\n this.meridians_ = [];\n\n /**\n * @type {Array}\n * @private\n */\n this.parallels_ = [];\n\n /**\n * @type {Stroke}\n * @private\n */\n this.strokeStyle_ = options.strokeStyle !== undefined ? options.strokeStyle : DEFAULT_STROKE_STYLE;\n\n /**\n * @type {import(\"./proj.js\").TransformFunction|undefined}\n * @private\n */\n this.fromLonLatTransform_ = undefined;\n\n /**\n * @type {import(\"./proj.js\").TransformFunction|undefined}\n * @private\n */\n this.toLonLatTransform_ = undefined;\n\n /**\n * @type {import(\"./coordinate.js\").Coordinate}\n * @private\n */\n this.projectionCenterLonLat_ = null;\n\n /**\n * @type {Array}\n * @private\n */\n this.meridiansLabels_ = null;\n\n /**\n * @type {Array}\n * @private\n */\n this.parallelsLabels_ = null;\n\n if (options.showLabels == true) {\n\n /**\n * @type {null|function(number):string}\n * @private\n */\n this.lonLabelFormatter_ = options.lonLabelFormatter == undefined ?\n degreesToStringHDMS.bind(this, 'EW') : options.lonLabelFormatter;\n\n /**\n * @type {function(number):string}\n * @private\n */\n this.latLabelFormatter_ = options.latLabelFormatter == undefined ?\n degreesToStringHDMS.bind(this, 'NS') : options.latLabelFormatter;\n\n /**\n * Longitude label position in fractions (0..1) of view extent. 0 means\n * bottom, 1 means top.\n * @type {number}\n * @private\n */\n this.lonLabelPosition_ = options.lonLabelPosition == undefined ? 0 :\n options.lonLabelPosition;\n\n /**\n * Latitude Label position in fractions (0..1) of view extent. 0 means left, 1\n * means right.\n * @type {number}\n * @private\n */\n this.latLabelPosition_ = options.latLabelPosition == undefined ? 1 :\n options.latLabelPosition;\n\n /**\n * @type {Text}\n * @private\n */\n this.lonLabelStyle_ = options.lonLabelStyle !== undefined ? options.lonLabelStyle :\n new Text({\n font: '12px Calibri,sans-serif',\n textBaseline: 'bottom',\n fill: new Fill({\n color: 'rgba(0,0,0,1)'\n }),\n stroke: new Stroke({\n color: 'rgba(255,255,255,1)',\n width: 3\n })\n });\n\n /**\n * @type {Text}\n * @private\n */\n this.latLabelStyle_ = options.latLabelStyle !== undefined ? options.latLabelStyle :\n new Text({\n font: '12px Calibri,sans-serif',\n textAlign: 'end',\n fill: new Fill({\n color: 'rgba(0,0,0,1)'\n }),\n stroke: new Stroke({\n color: 'rgba(255,255,255,1)',\n width: 3\n })\n });\n\n this.meridiansLabels_ = [];\n this.parallelsLabels_ = [];\n }\n\n /**\n * @type {Array}\n * @private\n */\n this.intervals_ = options.intervals !== undefined ? options.intervals : INTERVALS;\n\n this.setMap(options.map !== undefined ? options.map : null);\n};\n\n/**\n * @param {number} lon Longitude.\n * @param {number} minLat Minimal latitude.\n * @param {number} maxLat Maximal latitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {number} Index.\n * @private\n */\nGraticule.prototype.addMeridian_ = function addMeridian_ (lon, minLat, maxLat, squaredTolerance, extent, index) {\n var lineString = this.getMeridian_(lon, minLat, maxLat, squaredTolerance, index);\n if (intersects(lineString.getExtent(), extent)) {\n if (this.meridiansLabels_) {\n var textPoint = this.getMeridianPoint_(lineString, extent, index);\n this.meridiansLabels_[index] = {\n geom: textPoint,\n text: this.lonLabelFormatter_(lon)\n };\n }\n this.meridians_[index++] = lineString;\n }\n return index;\n};\n\n/**\n * @param {LineString} lineString Meridian\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {Point} Meridian point.\n * @private\n */\nGraticule.prototype.getMeridianPoint_ = function getMeridianPoint_ (lineString, extent, index) {\n var flatCoordinates = lineString.getFlatCoordinates();\n var clampedBottom = Math.max(extent[1], flatCoordinates[1]);\n var clampedTop = Math.min(extent[3], flatCoordinates[flatCoordinates.length - 1]);\n var lat = clamp(\n extent[1] + Math.abs(extent[1] - extent[3]) * this.lonLabelPosition_,\n clampedBottom, clampedTop);\n var coordinate = [flatCoordinates[0], lat];\n var point;\n if (index in this.meridiansLabels_) {\n point = this.meridiansLabels_[index].geom;\n point.setCoordinates(coordinate);\n } else {\n point = new Point(coordinate);\n }\n return point;\n};\n\n/**\n * @param {number} lat Latitude.\n * @param {number} minLon Minimal longitude.\n * @param {number} maxLon Maximal longitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {number} Index.\n * @private\n */\nGraticule.prototype.addParallel_ = function addParallel_ (lat, minLon, maxLon, squaredTolerance, extent, index) {\n var lineString = this.getParallel_(lat, minLon, maxLon, squaredTolerance, index);\n if (intersects(lineString.getExtent(), extent)) {\n if (this.parallelsLabels_) {\n var textPoint = this.getParallelPoint_(lineString, extent, index);\n this.parallelsLabels_[index] = {\n geom: textPoint,\n text: this.latLabelFormatter_(lat)\n };\n }\n this.parallels_[index++] = lineString;\n }\n return index;\n};\n\n/**\n * @param {LineString} lineString Parallels.\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {number} index Index.\n * @return {Point} Parallel point.\n * @private\n */\nGraticule.prototype.getParallelPoint_ = function getParallelPoint_ (lineString, extent, index) {\n var flatCoordinates = lineString.getFlatCoordinates();\n var clampedLeft = Math.max(extent[0], flatCoordinates[0]);\n var clampedRight = Math.min(extent[2], flatCoordinates[flatCoordinates.length - 2]);\n var lon = clamp(\n extent[0] + Math.abs(extent[0] - extent[2]) * this.latLabelPosition_,\n clampedLeft, clampedRight);\n var coordinate = [lon, flatCoordinates[1]];\n var point;\n if (index in this.parallelsLabels_) {\n point = this.parallelsLabels_[index].geom;\n point.setCoordinates(coordinate);\n } else {\n point = new Point(coordinate);\n }\n return point;\n};\n\n/**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {import(\"./coordinate.js\").Coordinate} center Center.\n * @param {number} resolution Resolution.\n * @param {number} squaredTolerance Squared tolerance.\n * @private\n */\nGraticule.prototype.createGraticule_ = function createGraticule_ (extent, center, resolution, squaredTolerance) {\n\n var interval = this.getInterval_(resolution);\n if (interval == -1) {\n this.meridians_.length = this.parallels_.length = 0;\n if (this.meridiansLabels_) {\n this.meridiansLabels_.length = 0;\n }\n if (this.parallelsLabels_) {\n this.parallelsLabels_.length = 0;\n }\n return;\n }\n\n var centerLonLat = this.toLonLatTransform_(center);\n var centerLon = centerLonLat[0];\n var centerLat = centerLonLat[1];\n var maxLines = this.maxLines_;\n var cnt, idx, lat, lon;\n\n var validExtent = [\n Math.max(extent[0], this.minLonP_),\n Math.max(extent[1], this.minLatP_),\n Math.min(extent[2], this.maxLonP_),\n Math.min(extent[3], this.maxLatP_)\n ];\n\n validExtent = transformExtent(validExtent, this.projection_, 'EPSG:4326');\n var maxLat = validExtent[3];\n var maxLon = validExtent[2];\n var minLat = validExtent[1];\n var minLon = validExtent[0];\n\n // Create meridians\n\n centerLon = Math.floor(centerLon / interval) * interval;\n lon = clamp(centerLon, this.minLon_, this.maxLon_);\n\n idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, 0);\n\n cnt = 0;\n while (lon != this.minLon_ && cnt++ < maxLines) {\n lon = Math.max(lon - interval, this.minLon_);\n idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx);\n }\n\n lon = clamp(centerLon, this.minLon_, this.maxLon_);\n\n cnt = 0;\n while (lon != this.maxLon_ && cnt++ < maxLines) {\n lon = Math.min(lon + interval, this.maxLon_);\n idx = this.addMeridian_(lon, minLat, maxLat, squaredTolerance, extent, idx);\n }\n\n this.meridians_.length = idx;\n if (this.meridiansLabels_) {\n this.meridiansLabels_.length = idx;\n }\n\n // Create parallels\n\n centerLat = Math.floor(centerLat / interval) * interval;\n lat = clamp(centerLat, this.minLat_, this.maxLat_);\n\n idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, 0);\n\n cnt = 0;\n while (lat != this.minLat_ && cnt++ < maxLines) {\n lat = Math.max(lat - interval, this.minLat_);\n idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, idx);\n }\n\n lat = clamp(centerLat, this.minLat_, this.maxLat_);\n\n cnt = 0;\n while (lat != this.maxLat_ && cnt++ < maxLines) {\n lat = Math.min(lat + interval, this.maxLat_);\n idx = this.addParallel_(lat, minLon, maxLon, squaredTolerance, extent, idx);\n }\n\n this.parallels_.length = idx;\n if (this.parallelsLabels_) {\n this.parallelsLabels_.length = idx;\n }\n\n};\n\n/**\n * @param {number} resolution Resolution.\n * @return {number} The interval in degrees.\n * @private\n */\nGraticule.prototype.getInterval_ = function getInterval_ (resolution) {\n var centerLon = this.projectionCenterLonLat_[0];\n var centerLat = this.projectionCenterLonLat_[1];\n var interval = -1;\n var target = Math.pow(this.targetSize_ * resolution, 2);\n /** @type {Array} **/\n var p1 = [];\n /** @type {Array} **/\n var p2 = [];\n for (var i = 0, ii = this.intervals_.length; i < ii; ++i) {\n var delta = this.intervals_[i] / 2;\n p1[0] = centerLon - delta;\n p1[1] = centerLat - delta;\n p2[0] = centerLon + delta;\n p2[1] = centerLat + delta;\n this.fromLonLatTransform_(p1, p1);\n this.fromLonLatTransform_(p2, p2);\n var dist = Math.pow(p2[0] - p1[0], 2) + Math.pow(p2[1] - p1[1], 2);\n if (dist <= target) {\n break;\n }\n interval = this.intervals_[i];\n }\n return interval;\n};\n\n/**\n * Get the map associated with this graticule.\n * @return {import(\"./PluggableMap.js\").default} The map.\n * @api\n */\nGraticule.prototype.getMap = function getMap () {\n return this.map_;\n};\n\n/**\n * @param {number} lon Longitude.\n * @param {number} minLat Minimal latitude.\n * @param {number} maxLat Maximal latitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {LineString} The meridian line string.\n * @param {number} index Index.\n * @private\n */\nGraticule.prototype.getMeridian_ = function getMeridian_ (lon, minLat, maxLat, squaredTolerance, index) {\n var flatCoordinates = meridian(lon, minLat, maxLat, this.projection_, squaredTolerance);\n var lineString = this.meridians_[index];\n if (!lineString) {\n lineString = this.meridians_[index] = new LineString(flatCoordinates, GeometryLayout.XY);\n } else {\n lineString.setFlatCoordinates(GeometryLayout.XY, flatCoordinates);\n lineString.changed();\n }\n return lineString;\n};\n\n/**\n * Get the list of meridians.Meridians are lines of equal longitude.\n * @return {Array} The meridians.\n * @api\n */\nGraticule.prototype.getMeridians = function getMeridians () {\n return this.meridians_;\n};\n\n/**\n * @param {number} lat Latitude.\n * @param {number} minLon Minimal longitude.\n * @param {number} maxLon Maximal longitude.\n * @param {number} squaredTolerance Squared tolerance.\n * @return {LineString} The parallel line string.\n * @param {number} index Index.\n * @private\n */\nGraticule.prototype.getParallel_ = function getParallel_ (lat, minLon, maxLon, squaredTolerance, index) {\n var flatCoordinates = parallel(lat, minLon, maxLon, this.projection_, squaredTolerance);\n var lineString = this.parallels_[index];\n if (!lineString) {\n lineString = new LineString(flatCoordinates, GeometryLayout.XY);\n } else {\n lineString.setFlatCoordinates(GeometryLayout.XY, flatCoordinates);\n lineString.changed();\n }\n return lineString;\n};\n\n/**\n * Get the list of parallels.Parallels are lines of equal latitude.\n * @return {Array} The parallels.\n * @api\n */\nGraticule.prototype.getParallels = function getParallels () {\n return this.parallels_;\n};\n\n/**\n * @param {import(\"./render/Event.js\").default} e Event.\n * @private\n */\nGraticule.prototype.handlePostCompose_ = function handlePostCompose_ (e) {\n var vectorContext = e.vectorContext;\n var frameState = e.frameState;\n var extent = frameState.extent;\n var viewState = frameState.viewState;\n var center = viewState.center;\n var projection = viewState.projection;\n var resolution = viewState.resolution;\n var pixelRatio = frameState.pixelRatio;\n var squaredTolerance =\n resolution * resolution / (4 * pixelRatio * pixelRatio);\n\n var updateProjectionInfo = !this.projection_ ||\n !equivalentProjection(this.projection_, projection);\n\n if (updateProjectionInfo) {\n this.updateProjectionInfo_(projection);\n }\n\n this.createGraticule_(extent, center, resolution, squaredTolerance);\n\n // Draw the lines\n vectorContext.setFillStrokeStyle(null, this.strokeStyle_);\n var i, l, line;\n for (i = 0, l = this.meridians_.length; i < l; ++i) {\n line = this.meridians_[i];\n vectorContext.drawGeometry(line);\n }\n for (i = 0, l = this.parallels_.length; i < l; ++i) {\n line = this.parallels_[i];\n vectorContext.drawGeometry(line);\n }\n var labelData;\n if (this.meridiansLabels_) {\n for (i = 0, l = this.meridiansLabels_.length; i < l; ++i) {\n labelData = this.meridiansLabels_[i];\n this.lonLabelStyle_.setText(labelData.text);\n vectorContext.setTextStyle(this.lonLabelStyle_);\n vectorContext.drawGeometry(labelData.geom);\n }\n }\n if (this.parallelsLabels_) {\n for (i = 0, l = this.parallelsLabels_.length; i < l; ++i) {\n labelData = this.parallelsLabels_[i];\n this.latLabelStyle_.setText(labelData.text);\n vectorContext.setTextStyle(this.latLabelStyle_);\n vectorContext.drawGeometry(labelData.geom);\n }\n }\n};\n\n/**\n * @param {import(\"./proj/Projection.js\").default} projection Projection.\n * @private\n */\nGraticule.prototype.updateProjectionInfo_ = function updateProjectionInfo_ (projection) {\n var epsg4326Projection = getProjection('EPSG:4326');\n\n var worldExtent = projection.getWorldExtent();\n var worldExtentP = transformExtent(worldExtent, epsg4326Projection, projection);\n\n this.maxLat_ = worldExtent[3];\n this.maxLon_ = worldExtent[2];\n this.minLat_ = worldExtent[1];\n this.minLon_ = worldExtent[0];\n\n this.maxLatP_ = worldExtentP[3];\n this.maxLonP_ = worldExtentP[2];\n this.minLatP_ = worldExtentP[1];\n this.minLonP_ = worldExtentP[0];\n\n this.fromLonLatTransform_ = getTransform(epsg4326Projection, projection);\n\n this.toLonLatTransform_ = getTransform(projection, epsg4326Projection);\n\n this.projectionCenterLonLat_ = this.toLonLatTransform_(getCenter(projection.getExtent()));\n\n this.projection_ = projection;\n};\n\n/**\n * Set the map for this graticule.The graticule will be rendered on the\n * provided map.\n * @param {import(\"./PluggableMap.js\").default} map Map.\n * @api\n */\nGraticule.prototype.setMap = function setMap (map) {\n if (this.map_) {\n unlistenByKey(this.postcomposeListenerKey_);\n this.postcomposeListenerKey_ = null;\n this.map_.render();\n }\n if (map) {\n this.postcomposeListenerKey_ = listen(map, RenderEventType.POSTCOMPOSE, this.handlePostCompose_, this);\n map.render();\n }\n this.map_ = map;\n};\n\nexport default Graticule;\n\n//# sourceMappingURL=Graticule.js.map","/**\n * @module ol/Kinetic\n */\n\n/**\n * @classdesc\n * Implementation of inertial deceleration for map movement.\n *\n * @api\n */\nvar Kinetic = function Kinetic(decay, minVelocity, delay) {\n\n /**\n * @private\n * @type {number}\n */\n this.decay_ = decay;\n\n /**\n * @private\n * @type {number}\n */\n this.minVelocity_ = minVelocity;\n\n /**\n * @private\n * @type {number}\n */\n this.delay_ = delay;\n\n /**\n * @private\n * @type {Array}\n */\n this.points_ = [];\n\n /**\n * @private\n * @type {number}\n */\n this.angle_ = 0;\n\n /**\n * @private\n * @type {number}\n */\n this.initialVelocity_ = 0;\n};\n\n/**\n * FIXME empty description for jsdoc\n */\nKinetic.prototype.begin = function begin () {\n this.points_.length = 0;\n this.angle_ = 0;\n this.initialVelocity_ = 0;\n};\n\n/**\n * @param {number} x X.\n * @param {number} y Y.\n */\nKinetic.prototype.update = function update (x, y) {\n this.points_.push(x, y, Date.now());\n};\n\n/**\n * @return {boolean} Whether we should do kinetic animation.\n */\nKinetic.prototype.end = function end () {\n if (this.points_.length < 6) {\n // at least 2 points are required (i.e. there must be at least 6 elements\n // in the array)\n return false;\n }\n var delay = Date.now() - this.delay_;\n var lastIndex = this.points_.length - 3;\n if (this.points_[lastIndex + 2] < delay) {\n // the last tracked point is too old, which means that the user stopped\n // panning before releasing the map\n return false;\n }\n\n // get the first point which still falls into the delay time\n var firstIndex = lastIndex - 3;\n while (firstIndex > 0 && this.points_[firstIndex + 2] > delay) {\n firstIndex -= 3;\n }\n\n var duration = this.points_[lastIndex + 2] - this.points_[firstIndex + 2];\n // we don't want a duration of 0 (divide by zero)\n // we also make sure the user panned for a duration of at least one frame\n // (1/60s) to compute sane displacement values\n if (duration < 1000 / 60) {\n return false;\n }\n\n var dx = this.points_[lastIndex] - this.points_[firstIndex];\n var dy = this.points_[lastIndex + 1] - this.points_[firstIndex + 1];\n this.angle_ = Math.atan2(dy, dx);\n this.initialVelocity_ = Math.sqrt(dx * dx + dy * dy) / duration;\n return this.initialVelocity_ > this.minVelocity_;\n};\n\n/**\n * @return {number} Total distance travelled (pixels).\n */\nKinetic.prototype.getDistance = function getDistance () {\n return (this.minVelocity_ - this.initialVelocity_) / this.decay_;\n};\n\n/**\n * @return {number} Angle of the kinetic panning animation (radians).\n */\nKinetic.prototype.getAngle = function getAngle () {\n return this.angle_;\n};\n\nexport default Kinetic;\n\n//# sourceMappingURL=Kinetic.js.map","/**\n * @module ol/MapEvent\n */\nimport Event from './events/Event.js';\n\n/**\n * @classdesc\n * Events emitted as map events are instances of this type.\n * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map event.\n */\nvar MapEvent = /*@__PURE__*/(function (Event) {\n function MapEvent(type, map, opt_frameState) {\n\n Event.call(this, type);\n\n /**\n * The map where the event occurred.\n * @type {import(\"./PluggableMap.js\").default}\n * @api\n */\n this.map = map;\n\n /**\n * The frame state at the time of the event.\n * @type {?import(\"./PluggableMap.js\").FrameState}\n * @api\n */\n this.frameState = opt_frameState !== undefined ? opt_frameState : null;\n\n }\n\n if ( Event ) MapEvent.__proto__ = Event;\n MapEvent.prototype = Object.create( Event && Event.prototype );\n MapEvent.prototype.constructor = MapEvent;\n\n return MapEvent;\n}(Event));\n\nexport default MapEvent;\n\n//# sourceMappingURL=MapEvent.js.map","/**\n * @module ol/MapBrowserEvent\n */\nimport MapEvent from './MapEvent.js';\n\n/**\n * @classdesc\n * Events emitted as map browser events are instances of this type.\n * See {@link module:ol/PluggableMap~PluggableMap} for which events trigger a map browser event.\n */\nvar MapBrowserEvent = /*@__PURE__*/(function (MapEvent) {\n function MapBrowserEvent(type, map, browserEvent, opt_dragging, opt_frameState) {\n\n MapEvent.call(this, type, map, opt_frameState);\n\n /**\n * The original browser event.\n * @const\n * @type {Event}\n * @api\n */\n this.originalEvent = browserEvent;\n\n /**\n * The map pixel relative to the viewport corresponding to the original browser event.\n * @type {import(\"./pixel.js\").Pixel}\n * @api\n */\n this.pixel = map.getEventPixel(browserEvent);\n\n /**\n * The coordinate in view projection corresponding to the original browser event.\n * @type {import(\"./coordinate.js\").Coordinate}\n * @api\n */\n this.coordinate = map.getCoordinateFromPixel(this.pixel);\n\n /**\n * Indicates if the map is currently being dragged. Only set for\n * `POINTERDRAG` and `POINTERMOVE` events. Default is `false`.\n *\n * @type {boolean}\n * @api\n */\n this.dragging = opt_dragging !== undefined ? opt_dragging : false;\n\n }\n\n if ( MapEvent ) MapBrowserEvent.__proto__ = MapEvent;\n MapBrowserEvent.prototype = Object.create( MapEvent && MapEvent.prototype );\n MapBrowserEvent.prototype.constructor = MapBrowserEvent;\n\n /**\n * Prevents the default browser action.\n * See https://developer.mozilla.org/en-US/docs/Web/API/event.preventDefault.\n * @override\n * @api\n */\n MapBrowserEvent.prototype.preventDefault = function preventDefault () {\n MapEvent.prototype.preventDefault.call(this);\n this.originalEvent.preventDefault();\n };\n\n /**\n * Prevents further propagation of the current event.\n * See https://developer.mozilla.org/en-US/docs/Web/API/event.stopPropagation.\n * @override\n * @api\n */\n MapBrowserEvent.prototype.stopPropagation = function stopPropagation () {\n MapEvent.prototype.stopPropagation.call(this);\n this.originalEvent.stopPropagation();\n };\n\n return MapBrowserEvent;\n}(MapEvent));\n\n\nexport default MapBrowserEvent;\n\n//# sourceMappingURL=MapBrowserEvent.js.map","/**\n * @module ol/MapBrowserEventType\n */\nimport EventType from './events/EventType.js';\n\n/**\n * Constants for event names.\n * @enum {string}\n */\nexport default {\n\n /**\n * A true single click with no dragging and no double click. Note that this\n * event is delayed by 250 ms to ensure that it is not a double click.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#singleclick\n * @api\n */\n SINGLECLICK: 'singleclick',\n\n /**\n * A click with no dragging. A double click will fire two of this.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#click\n * @api\n */\n CLICK: EventType.CLICK,\n\n /**\n * A true double click, with no dragging.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#dblclick\n * @api\n */\n DBLCLICK: EventType.DBLCLICK,\n\n /**\n * Triggered when a pointer is dragged.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointerdrag\n * @api\n */\n POINTERDRAG: 'pointerdrag',\n\n /**\n * Triggered when a pointer is moved. Note that on touch devices this is\n * triggered when the map is panned, so is not the same as mousemove.\n * @event module:ol/MapBrowserEvent~MapBrowserEvent#pointermove\n * @api\n */\n POINTERMOVE: 'pointermove',\n\n POINTERDOWN: 'pointerdown',\n POINTERUP: 'pointerup',\n POINTEROVER: 'pointerover',\n POINTEROUT: 'pointerout',\n POINTERENTER: 'pointerenter',\n POINTERLEAVE: 'pointerleave',\n POINTERCANCEL: 'pointercancel'\n};\n\n//# sourceMappingURL=MapBrowserEventType.js.map","/**\n * @module ol/MapBrowserPointerEvent\n */\nimport MapBrowserEvent from './MapBrowserEvent.js';\n\nvar MapBrowserPointerEvent = /*@__PURE__*/(function (MapBrowserEvent) {\n function MapBrowserPointerEvent(type, map, pointerEvent, opt_dragging, opt_frameState) {\n\n MapBrowserEvent.call(this, type, map, pointerEvent.originalEvent, opt_dragging, opt_frameState);\n\n /**\n * @const\n * @type {import(\"./pointer/PointerEvent.js\").default}\n */\n this.pointerEvent = pointerEvent;\n\n }\n\n if ( MapBrowserEvent ) MapBrowserPointerEvent.__proto__ = MapBrowserEvent;\n MapBrowserPointerEvent.prototype = Object.create( MapBrowserEvent && MapBrowserEvent.prototype );\n MapBrowserPointerEvent.prototype.constructor = MapBrowserPointerEvent;\n\n return MapBrowserPointerEvent;\n}(MapBrowserEvent));\n\nexport default MapBrowserPointerEvent;\n\n//# sourceMappingURL=MapBrowserPointerEvent.js.map","/**\n * @module ol/pointer/EventType\n */\n\n/**\n * Constants for event names.\n * @enum {string}\n */\nexport default {\n POINTERMOVE: 'pointermove',\n POINTERDOWN: 'pointerdown',\n POINTERUP: 'pointerup',\n POINTEROVER: 'pointerover',\n POINTEROUT: 'pointerout',\n POINTERENTER: 'pointerenter',\n POINTERLEAVE: 'pointerleave',\n POINTERCANCEL: 'pointercancel'\n};\n\n//# sourceMappingURL=EventType.js.map","/**\n * @module ol/pointer/EventSource\n */\n\nvar EventSource = function EventSource(dispatcher, mapping) {\n\n /**\n * @type {import(\"./PointerEventHandler.js\").default}\n */\n this.dispatcher = dispatcher;\n\n /**\n * @private\n * @const\n * @type {!Object}\n */\n this.mapping_ = mapping;\n};\n\n/**\n * List of events supported by this source.\n * @return {Array} Event names\n */\nEventSource.prototype.getEvents = function getEvents () {\n return Object.keys(this.mapping_);\n};\n\n/**\n * Returns the handler that should handle a given event type.\n * @param {string} eventType The event type.\n * @return {function(Event)} Handler\n */\nEventSource.prototype.getHandlerForEvent = function getHandlerForEvent (eventType) {\n return this.mapping_[eventType];\n};\n\nexport default EventSource;\n\n//# sourceMappingURL=EventSource.js.map","/**\n * @module ol/pointer/MouseSource\n */\n\n// Based on https://github.com/Polymer/PointerEvents\n\n// Copyright (c) 2013 The Polymer Authors. All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n//\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport EventSource from './EventSource.js';\n\n\n/**\n * @type {number}\n */\nexport var POINTER_ID = 1;\n\n\n/**\n * @type {string}\n */\nexport var POINTER_TYPE = 'mouse';\n\n\n/**\n * Radius around touchend that swallows mouse events.\n *\n * @type {number}\n */\nvar DEDUP_DIST = 25;\n\n/**\n * Handler for `mousedown`.\n *\n * @this {MouseSource}\n * @param {MouseEvent} inEvent The in event.\n */\nfunction mousedown(inEvent) {\n if (!this.isEventSimulatedFromTouch_(inEvent)) {\n // TODO(dfreedman) workaround for some elements not sending mouseup\n // http://crbug/149091\n if (POINTER_ID.toString() in this.pointerMap) {\n this.cancel(inEvent);\n }\n var e = prepareEvent(inEvent, this.dispatcher);\n this.pointerMap[POINTER_ID.toString()] = inEvent;\n this.dispatcher.down(e, inEvent);\n }\n}\n\n/**\n * Handler for `mousemove`.\n *\n * @this {MouseSource}\n * @param {MouseEvent} inEvent The in event.\n */\nfunction mousemove(inEvent) {\n if (!this.isEventSimulatedFromTouch_(inEvent)) {\n var e = prepareEvent(inEvent, this.dispatcher);\n this.dispatcher.move(e, inEvent);\n }\n}\n\n/**\n * Handler for `mouseup`.\n *\n * @this {MouseSource}\n * @param {MouseEvent} inEvent The in event.\n */\nfunction mouseup(inEvent) {\n if (!this.isEventSimulatedFromTouch_(inEvent)) {\n var p = this.pointerMap[POINTER_ID.toString()];\n\n if (p && p.button === inEvent.button) {\n var e = prepareEvent(inEvent, this.dispatcher);\n this.dispatcher.up(e, inEvent);\n this.cleanupMouse();\n }\n }\n}\n\n/**\n * Handler for `mouseover`.\n *\n * @this {MouseSource}\n * @param {MouseEvent} inEvent The in event.\n */\nfunction mouseover(inEvent) {\n if (!this.isEventSimulatedFromTouch_(inEvent)) {\n var e = prepareEvent(inEvent, this.dispatcher);\n this.dispatcher.enterOver(e, inEvent);\n }\n}\n\n/**\n * Handler for `mouseout`.\n *\n * @this {MouseSource}\n * @param {MouseEvent} inEvent The in event.\n */\nfunction mouseout(inEvent) {\n if (!this.isEventSimulatedFromTouch_(inEvent)) {\n var e = prepareEvent(inEvent, this.dispatcher);\n this.dispatcher.leaveOut(e, inEvent);\n }\n}\n\n\nvar MouseSource = /*@__PURE__*/(function (EventSource) {\n function MouseSource(dispatcher) {\n var mapping = {\n 'mousedown': mousedown,\n 'mousemove': mousemove,\n 'mouseup': mouseup,\n 'mouseover': mouseover,\n 'mouseout': mouseout\n };\n EventSource.call(this, dispatcher, mapping);\n\n /**\n * @const\n * @type {!Object}\n */\n this.pointerMap = dispatcher.pointerMap;\n\n /**\n * @const\n * @type {Array}\n */\n this.lastTouches = [];\n }\n\n if ( EventSource ) MouseSource.__proto__ = EventSource;\n MouseSource.prototype = Object.create( EventSource && EventSource.prototype );\n MouseSource.prototype.constructor = MouseSource;\n\n /**\n * Detect if a mouse event was simulated from a touch by\n * checking if previously there was a touch event at the\n * same position.\n *\n * FIXME - Known problem with the native Android browser on\n * Samsung GT-I9100 (Android 4.1.2):\n * In case the page is scrolled, this function does not work\n * correctly when a canvas is used (WebGL or canvas renderer).\n * Mouse listeners on canvas elements (for this browser), create\n * two mouse events: One 'good' and one 'bad' one (on other browsers or\n * when a div is used, there is only one event). For the 'bad' one,\n * clientX/clientY and also pageX/pageY are wrong when the page\n * is scrolled. Because of that, this function can not detect if\n * the events were simulated from a touch event. As result, a\n * pointer event at a wrong position is dispatched, which confuses\n * the map interactions.\n * It is unclear, how one can get the correct position for the event\n * or detect that the positions are invalid.\n *\n * @private\n * @param {MouseEvent} inEvent The in event.\n * @return {boolean} True, if the event was generated by a touch.\n */\n MouseSource.prototype.isEventSimulatedFromTouch_ = function isEventSimulatedFromTouch_ (inEvent) {\n var lts = this.lastTouches;\n var x = inEvent.clientX;\n var y = inEvent.clientY;\n for (var i = 0, l = lts.length, t = (void 0); i < l && (t = lts[i]); i++) {\n // simulated mouse events will be swallowed near a primary touchend\n var dx = Math.abs(x - t[0]);\n var dy = Math.abs(y - t[1]);\n if (dx <= DEDUP_DIST && dy <= DEDUP_DIST) {\n return true;\n }\n }\n return false;\n };\n\n /**\n * Dispatches a `pointercancel` event.\n *\n * @param {Event} inEvent The in event.\n */\n MouseSource.prototype.cancel = function cancel (inEvent) {\n var e = prepareEvent(inEvent, this.dispatcher);\n this.dispatcher.cancel(e, inEvent);\n this.cleanupMouse();\n };\n\n /**\n * Remove the mouse from the list of active pointers.\n */\n MouseSource.prototype.cleanupMouse = function cleanupMouse () {\n delete this.pointerMap[POINTER_ID.toString()];\n };\n\n return MouseSource;\n}(EventSource));\n\n\n/**\n * Creates a copy of the original event that will be used\n * for the fake pointer event.\n *\n * @param {Event} inEvent The in event.\n * @param {import(\"./PointerEventHandler.js\").default} dispatcher Event handler.\n * @return {Object} The copied event.\n */\nexport function prepareEvent(inEvent, dispatcher) {\n var e = dispatcher.cloneEvent(inEvent, inEvent);\n\n // forward mouse preventDefault\n var pd = e.preventDefault;\n e.preventDefault = function() {\n inEvent.preventDefault();\n pd();\n };\n\n e.pointerId = POINTER_ID;\n e.isPrimary = true;\n e.pointerType = POINTER_TYPE;\n\n return e;\n}\n\n\nexport default MouseSource;\n\n//# sourceMappingURL=MouseSource.js.map","/**\n * @module ol/pointer/MsSource\n */\n// Based on https://github.com/Polymer/PointerEvents\n\n// Copyright (c) 2013 The Polymer Authors. All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n//\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport EventSource from './EventSource.js';\n\n\n/**\n * @const\n * @type {Array}\n */\nvar POINTER_TYPES = [\n '',\n 'unavailable',\n 'touch',\n 'pen',\n 'mouse'\n];\n\n/**\n * Handler for `msPointerDown`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msPointerDown(inEvent) {\n this.pointerMap[inEvent.pointerId.toString()] = inEvent;\n var e = this.prepareEvent_(inEvent);\n this.dispatcher.down(e, inEvent);\n}\n\n/**\n * Handler for `msPointerMove`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msPointerMove(inEvent) {\n var e = this.prepareEvent_(inEvent);\n this.dispatcher.move(e, inEvent);\n}\n\n/**\n * Handler for `msPointerUp`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msPointerUp(inEvent) {\n var e = this.prepareEvent_(inEvent);\n this.dispatcher.up(e, inEvent);\n this.cleanup(inEvent.pointerId);\n}\n\n/**\n * Handler for `msPointerOut`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msPointerOut(inEvent) {\n var e = this.prepareEvent_(inEvent);\n this.dispatcher.leaveOut(e, inEvent);\n}\n\n/**\n * Handler for `msPointerOver`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msPointerOver(inEvent) {\n var e = this.prepareEvent_(inEvent);\n this.dispatcher.enterOver(e, inEvent);\n}\n\n/**\n * Handler for `msPointerCancel`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msPointerCancel(inEvent) {\n var e = this.prepareEvent_(inEvent);\n this.dispatcher.cancel(e, inEvent);\n this.cleanup(inEvent.pointerId);\n}\n\n/**\n * Handler for `msLostPointerCapture`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msLostPointerCapture(inEvent) {\n var e = this.dispatcher.makeEvent('lostpointercapture', inEvent, inEvent);\n this.dispatcher.dispatchEvent(e);\n}\n\n/**\n * Handler for `msGotPointerCapture`.\n *\n * @this {MsSource}\n * @param {MSPointerEvent} inEvent The in event.\n */\nfunction msGotPointerCapture(inEvent) {\n var e = this.dispatcher.makeEvent('gotpointercapture', inEvent, inEvent);\n this.dispatcher.dispatchEvent(e);\n}\n\nvar MsSource = /*@__PURE__*/(function (EventSource) {\n function MsSource(dispatcher) {\n var mapping = {\n 'MSPointerDown': msPointerDown,\n 'MSPointerMove': msPointerMove,\n 'MSPointerUp': msPointerUp,\n 'MSPointerOut': msPointerOut,\n 'MSPointerOver': msPointerOver,\n 'MSPointerCancel': msPointerCancel,\n 'MSGotPointerCapture': msGotPointerCapture,\n 'MSLostPointerCapture': msLostPointerCapture\n };\n EventSource.call(this, dispatcher, mapping);\n\n /**\n * @const\n * @type {!Object}\n */\n this.pointerMap = dispatcher.pointerMap;\n }\n\n if ( EventSource ) MsSource.__proto__ = EventSource;\n MsSource.prototype = Object.create( EventSource && EventSource.prototype );\n MsSource.prototype.constructor = MsSource;\n\n /**\n * Creates a copy of the original event that will be used\n * for the fake pointer event.\n *\n * @private\n * @param {MSPointerEvent} inEvent The in event.\n * @return {Object} The copied event.\n */\n MsSource.prototype.prepareEvent_ = function prepareEvent_ (inEvent) {\n /** @type {MSPointerEvent|Object} */\n var e = inEvent;\n if (typeof inEvent.pointerType === 'number') {\n e = this.dispatcher.cloneEvent(inEvent, inEvent);\n e.pointerType = POINTER_TYPES[inEvent.pointerType];\n }\n\n return e;\n };\n\n /**\n * Remove this pointer from the list of active pointers.\n * @param {number} pointerId Pointer identifier.\n */\n MsSource.prototype.cleanup = function cleanup (pointerId) {\n delete this.pointerMap[pointerId.toString()];\n };\n\n return MsSource;\n}(EventSource));\n\nexport default MsSource;\n\n//# sourceMappingURL=MsSource.js.map","/**\n * @module ol/pointer/NativeSource\n */\n\n// Based on https://github.com/Polymer/PointerEvents\n\n// Copyright (c) 2013 The Polymer Authors. All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n//\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport EventSource from './EventSource.js';\n\n/**\n * Handler for `pointerdown`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction pointerDown(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `pointermove`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction pointerMove(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `pointerup`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction pointerUp(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `pointerout`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction pointerOut(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `pointerover`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction pointerOver(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `pointercancel`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction pointerCancel(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `lostpointercapture`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction lostPointerCapture(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\n/**\n * Handler for `gotpointercapture`.\n *\n * @this {NativeSource}\n * @param {Event} inEvent The in event.\n */\nfunction gotPointerCapture(inEvent) {\n this.dispatcher.fireNativeEvent(inEvent);\n}\n\nvar NativeSource = /*@__PURE__*/(function (EventSource) {\n function NativeSource(dispatcher) {\n var mapping = {\n 'pointerdown': pointerDown,\n 'pointermove': pointerMove,\n 'pointerup': pointerUp,\n 'pointerout': pointerOut,\n 'pointerover': pointerOver,\n 'pointercancel': pointerCancel,\n 'gotpointercapture': gotPointerCapture,\n 'lostpointercapture': lostPointerCapture\n };\n EventSource.call(this, dispatcher, mapping);\n }\n\n if ( EventSource ) NativeSource.__proto__ = EventSource;\n NativeSource.prototype = Object.create( EventSource && EventSource.prototype );\n NativeSource.prototype.constructor = NativeSource;\n\n return NativeSource;\n}(EventSource));\n\nexport default NativeSource;\n\n//# sourceMappingURL=NativeSource.js.map","/**\n * @module ol/pointer/PointerEvent\n */\n\n// Based on https://github.com/Polymer/PointerEvents\n\n// Copyright (c) 2013 The Polymer Authors. All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n//\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport _Event from '../events/Event.js';\n\n\n/**\n * Is the `buttons` property supported?\n * @type {boolean}\n */\nvar HAS_BUTTONS = false;\n\n\nvar PointerEvent = /*@__PURE__*/(function (_Event) {\n function PointerEvent(type, originalEvent, opt_eventDict) {\n _Event.call(this, type);\n\n /**\n * @const\n * @type {Event}\n */\n this.originalEvent = originalEvent;\n\n var eventDict = opt_eventDict ? opt_eventDict : {};\n\n /**\n * @type {number}\n */\n this.buttons = getButtons(eventDict);\n\n /**\n * @type {number}\n */\n this.pressure = getPressure(eventDict, this.buttons);\n\n // MouseEvent related properties\n\n /**\n * @type {boolean}\n */\n this.bubbles = 'bubbles' in eventDict ? eventDict['bubbles'] : false;\n\n /**\n * @type {boolean}\n */\n this.cancelable = 'cancelable' in eventDict ? eventDict['cancelable'] : false;\n\n /**\n * @type {Object}\n */\n this.view = 'view' in eventDict ? eventDict['view'] : null;\n\n /**\n * @type {number}\n */\n this.detail = 'detail' in eventDict ? eventDict['detail'] : null;\n\n /**\n * @type {number}\n */\n this.screenX = 'screenX' in eventDict ? eventDict['screenX'] : 0;\n\n /**\n * @type {number}\n */\n this.screenY = 'screenY' in eventDict ? eventDict['screenY'] : 0;\n\n /**\n * @type {number}\n */\n this.clientX = 'clientX' in eventDict ? eventDict['clientX'] : 0;\n\n /**\n * @type {number}\n */\n this.clientY = 'clientY' in eventDict ? eventDict['clientY'] : 0;\n\n /**\n * @type {boolean}\n */\n this.ctrlKey = 'ctrlKey' in eventDict ? eventDict['ctrlKey'] : false;\n\n /**\n * @type {boolean}\n */\n this.altKey = 'altKey' in eventDict ? eventDict['altKey'] : false;\n\n /**\n * @type {boolean}\n */\n this.shiftKey = 'shiftKey' in eventDict ? eventDict['shiftKey'] : false;\n\n /**\n * @type {boolean}\n */\n this.metaKey = 'metaKey' in eventDict ? eventDict['metaKey'] : false;\n\n /**\n * @type {number}\n */\n this.button = 'button' in eventDict ? eventDict['button'] : 0;\n\n /**\n * @type {Node}\n */\n this.relatedTarget = 'relatedTarget' in eventDict ?\n eventDict['relatedTarget'] : null;\n\n // PointerEvent related properties\n\n /**\n * @const\n * @type {number}\n */\n this.pointerId = 'pointerId' in eventDict ? eventDict['pointerId'] : 0;\n\n /**\n * @type {number}\n */\n this.width = 'width' in eventDict ? eventDict['width'] : 0;\n\n /**\n * @type {number}\n */\n this.height = 'height' in eventDict ? eventDict['height'] : 0;\n\n /**\n * @type {number}\n */\n this.tiltX = 'tiltX' in eventDict ? eventDict['tiltX'] : 0;\n\n /**\n * @type {number}\n */\n this.tiltY = 'tiltY' in eventDict ? eventDict['tiltY'] : 0;\n\n /**\n * @type {string}\n */\n this.pointerType = 'pointerType' in eventDict ? eventDict['pointerType'] : '';\n\n /**\n * @type {number}\n */\n this.hwTimestamp = 'hwTimestamp' in eventDict ? eventDict['hwTimestamp'] : 0;\n\n /**\n * @type {boolean}\n */\n this.isPrimary = 'isPrimary' in eventDict ? eventDict['isPrimary'] : false;\n\n // keep the semantics of preventDefault\n if (originalEvent.preventDefault) {\n this.preventDefault = function() {\n originalEvent.preventDefault();\n };\n }\n }\n\n if ( _Event ) PointerEvent.__proto__ = _Event;\n PointerEvent.prototype = Object.create( _Event && _Event.prototype );\n PointerEvent.prototype.constructor = PointerEvent;\n\n return PointerEvent;\n}(_Event));\n\n\n/**\n * @param {Object} eventDict The event dictionary.\n * @return {number} Button indicator.\n */\nfunction getButtons(eventDict) {\n // According to the w3c spec,\n // http://www.w3.org/TR/DOM-Level-3-Events/#events-MouseEvent-button\n // MouseEvent.button == 0 can mean either no mouse button depressed, or the\n // left mouse button depressed.\n //\n // As of now, the only way to distinguish between the two states of\n // MouseEvent.button is by using the deprecated MouseEvent.which property, as\n // this maps mouse buttons to positive integers > 0, and uses 0 to mean that\n // no mouse button is held.\n //\n // MouseEvent.which is derived from MouseEvent.button at MouseEvent creation,\n // but initMouseEvent does not expose an argument with which to set\n // MouseEvent.which. Calling initMouseEvent with a buttonArg of 0 will set\n // MouseEvent.button == 0 and MouseEvent.which == 1, breaking the expectations\n // of app developers.\n //\n // The only way to propagate the correct state of MouseEvent.which and\n // MouseEvent.button to a new MouseEvent.button == 0 and MouseEvent.which == 0\n // is to call initMouseEvent with a buttonArg value of -1.\n //\n // This is fixed with DOM Level 4's use of buttons\n var buttons;\n if (eventDict.buttons || HAS_BUTTONS) {\n buttons = eventDict.buttons;\n } else {\n switch (eventDict.which) {\n case 1: buttons = 1; break;\n case 2: buttons = 4; break;\n case 3: buttons = 2; break;\n default: buttons = 0;\n }\n }\n return buttons;\n}\n\n\n/**\n * @param {Object} eventDict The event dictionary.\n * @param {number} buttons Button indicator.\n * @return {number} The pressure.\n */\nfunction getPressure(eventDict, buttons) {\n // Spec requires that pointers without pressure specified use 0.5 for down\n // state and 0 for up state.\n var pressure = 0;\n if (eventDict.pressure) {\n pressure = eventDict.pressure;\n } else {\n pressure = buttons ? 0.5 : 0;\n }\n return pressure;\n}\n\n\n/**\n * Checks if the `buttons` property is supported.\n */\n(function() {\n try {\n var ev = new MouseEvent('click', {buttons: 1});\n HAS_BUTTONS = ev.buttons === 1;\n } catch (e) {\n // pass\n }\n})();\n\nexport default PointerEvent;\n\n//# sourceMappingURL=PointerEvent.js.map","/**\n * @module ol/pointer/TouchSource\n */\n\n// Based on https://github.com/Polymer/PointerEvents\n\n// Copyright (c) 2013 The Polymer Authors. All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n//\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport {remove} from '../array.js';\nimport EventSource from './EventSource.js';\nimport {POINTER_ID} from './MouseSource.js';\n\n\n/**\n * @type {number}\n */\nvar CLICK_COUNT_TIMEOUT = 200;\n\n/**\n * @type {string}\n */\nvar POINTER_TYPE = 'touch';\n\n/**\n * Handler for `touchstart`, triggers `pointerover`,\n * `pointerenter` and `pointerdown` events.\n *\n * @this {TouchSource}\n * @param {TouchEvent} inEvent The in event.\n */\nfunction touchstart(inEvent) {\n this.vacuumTouches_(inEvent);\n this.setPrimaryTouch_(inEvent.changedTouches[0]);\n this.dedupSynthMouse_(inEvent);\n this.clickCount_++;\n this.processTouches_(inEvent, this.overDown_);\n}\n\n/**\n * Handler for `touchmove`.\n *\n * @this {TouchSource}\n * @param {TouchEvent} inEvent The in event.\n */\nfunction touchmove(inEvent) {\n this.processTouches_(inEvent, this.moveOverOut_);\n}\n\n/**\n * Handler for `touchend`, triggers `pointerup`,\n * `pointerout` and `pointerleave` events.\n *\n * @this {TouchSource}\n * @param {TouchEvent} inEvent The event.\n */\nfunction touchend(inEvent) {\n this.dedupSynthMouse_(inEvent);\n this.processTouches_(inEvent, this.upOut_);\n}\n\n/**\n * Handler for `touchcancel`, triggers `pointercancel`,\n * `pointerout` and `pointerleave` events.\n *\n * @this {TouchSource}\n * @param {TouchEvent} inEvent The in event.\n */\nfunction touchcancel(inEvent) {\n this.processTouches_(inEvent, this.cancelOut_);\n}\n\n\nvar TouchSource = /*@__PURE__*/(function (EventSource) {\n function TouchSource(dispatcher, mouseSource) {\n var mapping = {\n 'touchstart': touchstart,\n 'touchmove': touchmove,\n 'touchend': touchend,\n 'touchcancel': touchcancel\n };\n EventSource.call(this, dispatcher, mapping);\n\n /**\n * @const\n * @type {!Object}\n */\n this.pointerMap = dispatcher.pointerMap;\n\n /**\n * @const\n * @type {import(\"./MouseSource.js\").default}\n */\n this.mouseSource = mouseSource;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.firstTouchId_ = undefined;\n\n /**\n * @private\n * @type {number}\n */\n this.clickCount_ = 0;\n\n /**\n * @private\n * @type {?}\n */\n this.resetId_;\n\n /**\n * Mouse event timeout: This should be long enough to\n * ignore compat mouse events made by touch.\n * @private\n * @type {number}\n */\n this.dedupTimeout_ = 2500;\n }\n\n if ( EventSource ) TouchSource.__proto__ = EventSource;\n TouchSource.prototype = Object.create( EventSource && EventSource.prototype );\n TouchSource.prototype.constructor = TouchSource;\n\n /**\n * @private\n * @param {Touch} inTouch The in touch.\n * @return {boolean} True, if this is the primary touch.\n */\n TouchSource.prototype.isPrimaryTouch_ = function isPrimaryTouch_ (inTouch) {\n return this.firstTouchId_ === inTouch.identifier;\n };\n\n /**\n * Set primary touch if there are no pointers, or the only pointer is the mouse.\n * @param {Touch} inTouch The in touch.\n * @private\n */\n TouchSource.prototype.setPrimaryTouch_ = function setPrimaryTouch_ (inTouch) {\n var count = Object.keys(this.pointerMap).length;\n if (count === 0 || (count === 1 && POINTER_ID.toString() in this.pointerMap)) {\n this.firstTouchId_ = inTouch.identifier;\n this.cancelResetClickCount_();\n }\n };\n\n /**\n * @private\n * @param {PointerEvent} inPointer The in pointer object.\n */\n TouchSource.prototype.removePrimaryPointer_ = function removePrimaryPointer_ (inPointer) {\n if (inPointer.isPrimary) {\n this.firstTouchId_ = undefined;\n this.resetClickCount_();\n }\n };\n\n /**\n * @private\n */\n TouchSource.prototype.resetClickCount_ = function resetClickCount_ () {\n this.resetId_ = setTimeout(\n this.resetClickCountHandler_.bind(this),\n CLICK_COUNT_TIMEOUT);\n };\n\n /**\n * @private\n */\n TouchSource.prototype.resetClickCountHandler_ = function resetClickCountHandler_ () {\n this.clickCount_ = 0;\n this.resetId_ = undefined;\n };\n\n /**\n * @private\n */\n TouchSource.prototype.cancelResetClickCount_ = function cancelResetClickCount_ () {\n if (this.resetId_ !== undefined) {\n clearTimeout(this.resetId_);\n }\n };\n\n /**\n * @private\n * @param {TouchEvent} browserEvent Browser event\n * @param {Touch} inTouch Touch event\n * @return {PointerEvent} A pointer object.\n */\n TouchSource.prototype.touchToPointer_ = function touchToPointer_ (browserEvent, inTouch) {\n var e = this.dispatcher.cloneEvent(browserEvent, inTouch);\n // Spec specifies that pointerId 1 is reserved for Mouse.\n // Touch identifiers can start at 0.\n // Add 2 to the touch identifier for compatibility.\n e.pointerId = inTouch.identifier + 2;\n // TODO: check if this is necessary?\n //e.target = findTarget(e);\n e.bubbles = true;\n e.cancelable = true;\n e.detail = this.clickCount_;\n e.button = 0;\n e.buttons = 1;\n e.width = inTouch.radiusX || 0;\n e.height = inTouch.radiusY || 0;\n e.pressure = inTouch.force || 0.5;\n e.isPrimary = this.isPrimaryTouch_(inTouch);\n e.pointerType = POINTER_TYPE;\n\n // make sure that the properties that are different for\n // each `Touch` object are not copied from the BrowserEvent object\n e.clientX = inTouch.clientX;\n e.clientY = inTouch.clientY;\n e.screenX = inTouch.screenX;\n e.screenY = inTouch.screenY;\n\n return e;\n };\n\n /**\n * @private\n * @param {TouchEvent} inEvent Touch event\n * @param {function(TouchEvent, PointerEvent)} inFunction In function.\n */\n TouchSource.prototype.processTouches_ = function processTouches_ (inEvent, inFunction) {\n var touches = Array.prototype.slice.call(inEvent.changedTouches);\n var count = touches.length;\n function preventDefault() {\n inEvent.preventDefault();\n }\n for (var i = 0; i < count; ++i) {\n var pointer = this.touchToPointer_(inEvent, touches[i]);\n // forward touch preventDefaults\n pointer.preventDefault = preventDefault;\n inFunction.call(this, inEvent, pointer);\n }\n };\n\n /**\n * @private\n * @param {TouchList} touchList The touch list.\n * @param {number} searchId Search identifier.\n * @return {boolean} True, if the `Touch` with the given id is in the list.\n */\n TouchSource.prototype.findTouch_ = function findTouch_ (touchList, searchId) {\n var l = touchList.length;\n for (var i = 0; i < l; i++) {\n var touch = touchList[i];\n if (touch.identifier === searchId) {\n return true;\n }\n }\n return false;\n };\n\n /**\n * In some instances, a touchstart can happen without a touchend. This\n * leaves the pointermap in a broken state.\n * Therefore, on every touchstart, we remove the touches that did not fire a\n * touchend event.\n * To keep state globally consistent, we fire a pointercancel for\n * this \"abandoned\" touch\n *\n * @private\n * @param {TouchEvent} inEvent The in event.\n */\n TouchSource.prototype.vacuumTouches_ = function vacuumTouches_ (inEvent) {\n var touchList = inEvent.touches;\n // pointerMap.getCount() should be < touchList.length here,\n // as the touchstart has not been processed yet.\n var keys = Object.keys(this.pointerMap);\n var count = keys.length;\n if (count >= touchList.length) {\n var d = [];\n for (var i = 0; i < count; ++i) {\n var key = Number(keys[i]);\n var value = this.pointerMap[key];\n // Never remove pointerId == 1, which is mouse.\n // Touch identifiers are 2 smaller than their pointerId, which is the\n // index in pointermap.\n if (key != POINTER_ID && !this.findTouch_(touchList, key - 2)) {\n d.push(value.out);\n }\n }\n for (var i$1 = 0; i$1 < d.length; ++i$1) {\n this.cancelOut_(inEvent, d[i$1]);\n }\n }\n };\n\n /**\n * @private\n * @param {TouchEvent} browserEvent The event.\n * @param {PointerEvent} inPointer The in pointer object.\n */\n TouchSource.prototype.overDown_ = function overDown_ (browserEvent, inPointer) {\n this.pointerMap[inPointer.pointerId] = {\n target: inPointer.target,\n out: inPointer,\n outTarget: inPointer.target\n };\n this.dispatcher.over(inPointer, browserEvent);\n this.dispatcher.enter(inPointer, browserEvent);\n this.dispatcher.down(inPointer, browserEvent);\n };\n\n /**\n * @private\n * @param {TouchEvent} browserEvent The event.\n * @param {PointerEvent} inPointer The in pointer.\n */\n TouchSource.prototype.moveOverOut_ = function moveOverOut_ (browserEvent, inPointer) {\n var event = inPointer;\n var pointer = this.pointerMap[event.pointerId];\n // a finger drifted off the screen, ignore it\n if (!pointer) {\n return;\n }\n var outEvent = pointer.out;\n var outTarget = pointer.outTarget;\n this.dispatcher.move(event, browserEvent);\n if (outEvent && outTarget !== event.target) {\n outEvent.relatedTarget = event.target;\n /** @type {Object} */ (event).relatedTarget = outTarget;\n // recover from retargeting by shadow\n outEvent.target = outTarget;\n if (event.target) {\n this.dispatcher.leaveOut(outEvent, browserEvent);\n this.dispatcher.enterOver(event, browserEvent);\n } else {\n // clean up case when finger leaves the screen\n /** @type {Object} */ (event).target = outTarget;\n /** @type {Object} */ (event).relatedTarget = null;\n this.cancelOut_(browserEvent, event);\n }\n }\n pointer.out = event;\n pointer.outTarget = event.target;\n };\n\n /**\n * @private\n * @param {TouchEvent} browserEvent An event.\n * @param {PointerEvent} inPointer The inPointer object.\n */\n TouchSource.prototype.upOut_ = function upOut_ (browserEvent, inPointer) {\n this.dispatcher.up(inPointer, browserEvent);\n this.dispatcher.out(inPointer, browserEvent);\n this.dispatcher.leave(inPointer, browserEvent);\n this.cleanUpPointer_(inPointer);\n };\n\n /**\n * @private\n * @param {TouchEvent} browserEvent The event.\n * @param {PointerEvent} inPointer The in pointer.\n */\n TouchSource.prototype.cancelOut_ = function cancelOut_ (browserEvent, inPointer) {\n this.dispatcher.cancel(inPointer, browserEvent);\n this.dispatcher.out(inPointer, browserEvent);\n this.dispatcher.leave(inPointer, browserEvent);\n this.cleanUpPointer_(inPointer);\n };\n\n /**\n * @private\n * @param {PointerEvent} inPointer The inPointer object.\n */\n TouchSource.prototype.cleanUpPointer_ = function cleanUpPointer_ (inPointer) {\n delete this.pointerMap[inPointer.pointerId];\n this.removePrimaryPointer_(inPointer);\n };\n\n /**\n * Prevent synth mouse events from creating pointer events.\n *\n * @private\n * @param {TouchEvent} inEvent The in event.\n */\n TouchSource.prototype.dedupSynthMouse_ = function dedupSynthMouse_ (inEvent) {\n var lts = this.mouseSource.lastTouches;\n var t = inEvent.changedTouches[0];\n // only the primary finger will synth mouse events\n if (this.isPrimaryTouch_(t)) {\n // remember x/y of last touch\n var lt = [t.clientX, t.clientY];\n lts.push(lt);\n\n setTimeout(function() {\n // remove touch after timeout\n remove(lts, lt);\n }, this.dedupTimeout_);\n }\n };\n\n return TouchSource;\n}(EventSource));\n\nexport default TouchSource;\n\n//# sourceMappingURL=TouchSource.js.map","/**\n * @module ol/pointer/PointerEventHandler\n */\n\n// Based on https://github.com/Polymer/PointerEvents\n\n// Copyright (c) 2013 The Polymer Authors. All rights reserved.\n//\n// Redistribution and use in source and binary forms, with or without\n// modification, are permitted provided that the following conditions are\n// met:\n//\n// * Redistributions of source code must retain the above copyright\n// notice, this list of conditions and the following disclaimer.\n// * Redistributions in binary form must reproduce the above\n// copyright notice, this list of conditions and the following disclaimer\n// in the documentation and/or other materials provided with the\n// distribution.\n// * Neither the name of Google Inc. nor the names of its\n// contributors may be used to endorse or promote products derived from\n// this software without specific prior written permission.\n//\n// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n// \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n\nimport {listen, unlisten} from '../events.js';\nimport EventTarget from '../events/Target.js';\nimport {POINTER, MSPOINTER, TOUCH} from '../has.js';\nimport PointerEventType from './EventType.js';\nimport MouseSource, {prepareEvent as prepareMouseEvent} from './MouseSource.js';\nimport MsSource from './MsSource.js';\nimport NativeSource from './NativeSource.js';\nimport PointerEvent from './PointerEvent.js';\nimport TouchSource from './TouchSource.js';\n\n\n/**\n * Properties to copy when cloning an event, with default values.\n * @type {Array}\n */\nvar CLONE_PROPS = [\n // MouseEvent\n ['bubbles', false],\n ['cancelable', false],\n ['view', null],\n ['detail', null],\n ['screenX', 0],\n ['screenY', 0],\n ['clientX', 0],\n ['clientY', 0],\n ['ctrlKey', false],\n ['altKey', false],\n ['shiftKey', false],\n ['metaKey', false],\n ['button', 0],\n ['relatedTarget', null],\n // DOM Level 3\n ['buttons', 0],\n // PointerEvent\n ['pointerId', 0],\n ['width', 0],\n ['height', 0],\n ['pressure', 0],\n ['tiltX', 0],\n ['tiltY', 0],\n ['pointerType', ''],\n ['hwTimestamp', 0],\n ['isPrimary', false],\n // event instance\n ['type', ''],\n ['target', null],\n ['currentTarget', null],\n ['which', 0]\n];\n\n\nvar PointerEventHandler = /*@__PURE__*/(function (EventTarget) {\n function PointerEventHandler(element) {\n EventTarget.call(this);\n\n /**\n * @const\n * @private\n * @type {Element|HTMLDocument}\n */\n this.element_ = element;\n\n /**\n * @const\n * @type {!Object}\n */\n this.pointerMap = {};\n\n /**\n * @type {Object}\n * @private\n */\n this.eventMap_ = {};\n\n /**\n * @type {Array}\n * @private\n */\n this.eventSourceList_ = [];\n\n this.registerSources();\n }\n\n if ( EventTarget ) PointerEventHandler.__proto__ = EventTarget;\n PointerEventHandler.prototype = Object.create( EventTarget && EventTarget.prototype );\n PointerEventHandler.prototype.constructor = PointerEventHandler;\n\n /**\n * Set up the event sources (mouse, touch and native pointers)\n * that generate pointer events.\n */\n PointerEventHandler.prototype.registerSources = function registerSources () {\n if (POINTER) {\n this.registerSource('native', new NativeSource(this));\n } else if (MSPOINTER) {\n this.registerSource('ms', new MsSource(this));\n } else {\n var mouseSource = new MouseSource(this);\n this.registerSource('mouse', mouseSource);\n\n if (TOUCH) {\n this.registerSource('touch', new TouchSource(this, mouseSource));\n }\n }\n\n // register events on the viewport element\n this.register_();\n };\n\n /**\n * Add a new event source that will generate pointer events.\n *\n * @param {string} name A name for the event source\n * @param {import(\"./EventSource.js\").default} source The source event.\n */\n PointerEventHandler.prototype.registerSource = function registerSource (name, source) {\n var s = source;\n var newEvents = s.getEvents();\n\n if (newEvents) {\n newEvents.forEach(function(e) {\n var handler = s.getHandlerForEvent(e);\n\n if (handler) {\n this.eventMap_[e] = handler.bind(s);\n }\n }.bind(this));\n this.eventSourceList_.push(s);\n }\n };\n\n /**\n * Set up the events for all registered event sources.\n * @private\n */\n PointerEventHandler.prototype.register_ = function register_ () {\n var l = this.eventSourceList_.length;\n for (var i = 0; i < l; i++) {\n var eventSource = this.eventSourceList_[i];\n this.addEvents_(eventSource.getEvents());\n }\n };\n\n /**\n * Remove all registered events.\n * @private\n */\n PointerEventHandler.prototype.unregister_ = function unregister_ () {\n var l = this.eventSourceList_.length;\n for (var i = 0; i < l; i++) {\n var eventSource = this.eventSourceList_[i];\n this.removeEvents_(eventSource.getEvents());\n }\n };\n\n /**\n * Calls the right handler for a new event.\n * @private\n * @param {Event} inEvent Browser event.\n */\n PointerEventHandler.prototype.eventHandler_ = function eventHandler_ (inEvent) {\n var type = inEvent.type;\n var handler = this.eventMap_[type];\n if (handler) {\n handler(inEvent);\n }\n };\n\n /**\n * Setup listeners for the given events.\n * @private\n * @param {Array} events List of events.\n */\n PointerEventHandler.prototype.addEvents_ = function addEvents_ (events) {\n events.forEach(function(eventName) {\n listen(this.element_, eventName, this.eventHandler_, this);\n }.bind(this));\n };\n\n /**\n * Unregister listeners for the given events.\n * @private\n * @param {Array} events List of events.\n */\n PointerEventHandler.prototype.removeEvents_ = function removeEvents_ (events) {\n events.forEach(function(e) {\n unlisten(this.element_, e, this.eventHandler_, this);\n }.bind(this));\n };\n\n /**\n * Returns a snapshot of inEvent, with writable properties.\n *\n * @param {Event} event Browser event.\n * @param {Event|Touch} inEvent An event that contains\n * properties to copy.\n * @return {Object} An object containing shallow copies of\n * `inEvent`'s properties.\n */\n PointerEventHandler.prototype.cloneEvent = function cloneEvent (event, inEvent) {\n var eventCopy = {};\n for (var i = 0, ii = CLONE_PROPS.length; i < ii; i++) {\n var p = CLONE_PROPS[i][0];\n eventCopy[p] = event[p] || inEvent[p] || CLONE_PROPS[i][1];\n }\n\n return eventCopy;\n };\n\n // EVENTS\n\n\n /**\n * Triggers a 'pointerdown' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.down = function down (data, event) {\n this.fireEvent(PointerEventType.POINTERDOWN, data, event);\n };\n\n /**\n * Triggers a 'pointermove' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.move = function move (data, event) {\n this.fireEvent(PointerEventType.POINTERMOVE, data, event);\n };\n\n /**\n * Triggers a 'pointerup' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.up = function up (data, event) {\n this.fireEvent(PointerEventType.POINTERUP, data, event);\n };\n\n /**\n * Triggers a 'pointerenter' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.enter = function enter (data, event) {\n data.bubbles = false;\n this.fireEvent(PointerEventType.POINTERENTER, data, event);\n };\n\n /**\n * Triggers a 'pointerleave' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.leave = function leave (data, event) {\n data.bubbles = false;\n this.fireEvent(PointerEventType.POINTERLEAVE, data, event);\n };\n\n /**\n * Triggers a 'pointerover' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.over = function over (data, event) {\n data.bubbles = true;\n this.fireEvent(PointerEventType.POINTEROVER, data, event);\n };\n\n /**\n * Triggers a 'pointerout' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.out = function out (data, event) {\n data.bubbles = true;\n this.fireEvent(PointerEventType.POINTEROUT, data, event);\n };\n\n /**\n * Triggers a 'pointercancel' event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.cancel = function cancel (data, event) {\n this.fireEvent(PointerEventType.POINTERCANCEL, data, event);\n };\n\n /**\n * Triggers a combination of 'pointerout' and 'pointerleave' events.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.leaveOut = function leaveOut (data, event) {\n this.out(data, event);\n if (!this.contains_(data.target, data.relatedTarget)) {\n this.leave(data, event);\n }\n };\n\n /**\n * Triggers a combination of 'pointerover' and 'pointerevents' events.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.enterOver = function enterOver (data, event) {\n this.over(data, event);\n if (!this.contains_(data.target, data.relatedTarget)) {\n this.enter(data, event);\n }\n };\n\n /**\n * @private\n * @param {Element} container The container element.\n * @param {Element} contained The contained element.\n * @return {boolean} Returns true if the container element\n * contains the other element.\n */\n PointerEventHandler.prototype.contains_ = function contains_ (container, contained) {\n if (!container || !contained) {\n return false;\n }\n return container.contains(contained);\n };\n\n // EVENT CREATION AND TRACKING\n /**\n * Creates a new Event of type `inType`, based on the information in\n * `data`.\n *\n * @param {string} inType A string representing the type of event to create.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n * @return {PointerEvent} A PointerEvent of type `inType`.\n */\n PointerEventHandler.prototype.makeEvent = function makeEvent (inType, data, event) {\n return new PointerEvent(inType, event, data);\n };\n\n /**\n * Make and dispatch an event in one call.\n * @param {string} inType A string representing the type of event.\n * @param {Object} data Pointer event data.\n * @param {Event} event The event.\n */\n PointerEventHandler.prototype.fireEvent = function fireEvent (inType, data, event) {\n var e = this.makeEvent(inType, data, event);\n this.dispatchEvent(e);\n };\n\n /**\n * Creates a pointer event from a native pointer event\n * and dispatches this event.\n * @param {Event} event A platform event with a target.\n */\n PointerEventHandler.prototype.fireNativeEvent = function fireNativeEvent (event) {\n var e = this.makeEvent(event.type, event, event);\n this.dispatchEvent(e);\n };\n\n /**\n * Wrap a native mouse event into a pointer event.\n * This proxy method is required for the legacy IE support.\n * @param {string} eventType The pointer event type.\n * @param {Event} event The event.\n * @return {PointerEvent} The wrapped event.\n */\n PointerEventHandler.prototype.wrapMouseEvent = function wrapMouseEvent (eventType, event) {\n var pointerEvent = this.makeEvent(\n eventType, prepareMouseEvent(event, this), event);\n return pointerEvent;\n };\n\n /**\n * @inheritDoc\n */\n PointerEventHandler.prototype.disposeInternal = function disposeInternal () {\n this.unregister_();\n EventTarget.prototype.disposeInternal.call(this);\n };\n\n return PointerEventHandler;\n}(EventTarget));\n\nexport default PointerEventHandler;\n\n//# sourceMappingURL=PointerEventHandler.js.map","/**\n * @module ol/MapBrowserEventHandler\n */\nimport {DEVICE_PIXEL_RATIO} from './has.js';\nimport MapBrowserEventType from './MapBrowserEventType.js';\nimport MapBrowserPointerEvent from './MapBrowserPointerEvent.js';\nimport {listen, unlistenByKey} from './events.js';\nimport EventTarget from './events/Target.js';\nimport PointerEventType from './pointer/EventType.js';\nimport PointerEventHandler from './pointer/PointerEventHandler.js';\n\nvar MapBrowserEventHandler = /*@__PURE__*/(function (EventTarget) {\n function MapBrowserEventHandler(map, moveTolerance) {\n\n EventTarget.call(this);\n\n /**\n * This is the element that we will listen to the real events on.\n * @type {import(\"./PluggableMap.js\").default}\n * @private\n */\n this.map_ = map;\n\n /**\n * @type {any}\n * @private\n */\n this.clickTimeoutId_;\n\n /**\n * @type {boolean}\n * @private\n */\n this.dragging_ = false;\n\n /**\n * @type {!Array}\n * @private\n */\n this.dragListenerKeys_ = [];\n\n /**\n * @type {number}\n * @private\n */\n this.moveTolerance_ = moveTolerance ?\n moveTolerance * DEVICE_PIXEL_RATIO : DEVICE_PIXEL_RATIO;\n\n /**\n * The most recent \"down\" type event (or null if none have occurred).\n * Set on pointerdown.\n * @type {import(\"./pointer/PointerEvent.js\").default}\n * @private\n */\n this.down_ = null;\n\n var element = this.map_.getViewport();\n\n /**\n * @type {number}\n * @private\n */\n this.activePointers_ = 0;\n\n /**\n * @type {!Object}\n * @private\n */\n this.trackedTouches_ = {};\n\n /**\n * Event handler which generates pointer events for\n * the viewport element.\n *\n * @type {PointerEventHandler}\n * @private\n */\n this.pointerEventHandler_ = new PointerEventHandler(element);\n\n /**\n * Event handler which generates pointer events for\n * the document (used when dragging).\n *\n * @type {PointerEventHandler}\n * @private\n */\n this.documentPointerEventHandler_ = null;\n\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n this.pointerdownListenerKey_ = listen(this.pointerEventHandler_,\n PointerEventType.POINTERDOWN,\n this.handlePointerDown_, this);\n\n /**\n * @type {?import(\"./events.js\").EventsKey}\n * @private\n */\n this.relayedListenerKey_ = listen(this.pointerEventHandler_,\n PointerEventType.POINTERMOVE,\n this.relayEvent_, this);\n\n }\n\n if ( EventTarget ) MapBrowserEventHandler.__proto__ = EventTarget;\n MapBrowserEventHandler.prototype = Object.create( EventTarget && EventTarget.prototype );\n MapBrowserEventHandler.prototype.constructor = MapBrowserEventHandler;\n\n /**\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.emulateClick_ = function emulateClick_ (pointerEvent) {\n var newEvent = new MapBrowserPointerEvent(\n MapBrowserEventType.CLICK, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n if (this.clickTimeoutId_ !== undefined) {\n // double-click\n clearTimeout(this.clickTimeoutId_);\n this.clickTimeoutId_ = undefined;\n newEvent = new MapBrowserPointerEvent(\n MapBrowserEventType.DBLCLICK, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n } else {\n // click\n this.clickTimeoutId_ = setTimeout(function() {\n this.clickTimeoutId_ = undefined;\n var newEvent = new MapBrowserPointerEvent(\n MapBrowserEventType.SINGLECLICK, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n }.bind(this), 250);\n }\n };\n\n /**\n * Keeps track on how many pointers are currently active.\n *\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.updateActivePointers_ = function updateActivePointers_ (pointerEvent) {\n var event = pointerEvent;\n\n if (event.type == MapBrowserEventType.POINTERUP ||\n event.type == MapBrowserEventType.POINTERCANCEL) {\n delete this.trackedTouches_[event.pointerId];\n } else if (event.type == MapBrowserEventType.POINTERDOWN) {\n this.trackedTouches_[event.pointerId] = true;\n }\n this.activePointers_ = Object.keys(this.trackedTouches_).length;\n };\n\n /**\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.handlePointerUp_ = function handlePointerUp_ (pointerEvent) {\n this.updateActivePointers_(pointerEvent);\n var newEvent = new MapBrowserPointerEvent(\n MapBrowserEventType.POINTERUP, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n\n // We emulate click events on left mouse button click, touch contact, and pen\n // contact. isMouseActionButton returns true in these cases (evt.button is set\n // to 0).\n // See http://www.w3.org/TR/pointerevents/#button-states\n // We only fire click, singleclick, and doubleclick if nobody has called\n // event.stopPropagation() or event.preventDefault().\n if (!newEvent.propagationStopped && !this.dragging_ && this.isMouseActionButton_(pointerEvent)) {\n this.emulateClick_(this.down_);\n }\n\n if (this.activePointers_ === 0) {\n this.dragListenerKeys_.forEach(unlistenByKey);\n this.dragListenerKeys_.length = 0;\n this.dragging_ = false;\n this.down_ = null;\n this.documentPointerEventHandler_.dispose();\n this.documentPointerEventHandler_ = null;\n }\n };\n\n /**\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @return {boolean} If the left mouse button was pressed.\n * @private\n */\n MapBrowserEventHandler.prototype.isMouseActionButton_ = function isMouseActionButton_ (pointerEvent) {\n return pointerEvent.button === 0;\n };\n\n /**\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.handlePointerDown_ = function handlePointerDown_ (pointerEvent) {\n this.updateActivePointers_(pointerEvent);\n var newEvent = new MapBrowserPointerEvent(\n MapBrowserEventType.POINTERDOWN, this.map_, pointerEvent);\n this.dispatchEvent(newEvent);\n\n this.down_ = pointerEvent;\n\n if (this.dragListenerKeys_.length === 0) {\n /* Set up a pointer event handler on the `document`,\n * which is required when the pointer is moved outside\n * the viewport when dragging.\n */\n this.documentPointerEventHandler_ =\n new PointerEventHandler(document);\n\n this.dragListenerKeys_.push(\n listen(this.documentPointerEventHandler_,\n MapBrowserEventType.POINTERMOVE,\n this.handlePointerMove_, this),\n listen(this.documentPointerEventHandler_,\n MapBrowserEventType.POINTERUP,\n this.handlePointerUp_, this),\n /* Note that the listener for `pointercancel is set up on\n * `pointerEventHandler_` and not `documentPointerEventHandler_` like\n * the `pointerup` and `pointermove` listeners.\n *\n * The reason for this is the following: `TouchSource.vacuumTouches_()`\n * issues `pointercancel` events, when there was no `touchend` for a\n * `touchstart`. Now, let's say a first `touchstart` is registered on\n * `pointerEventHandler_`. The `documentPointerEventHandler_` is set up.\n * But `documentPointerEventHandler_` doesn't know about the first\n * `touchstart`. If there is no `touchend` for the `touchstart`, we can\n * only receive a `touchcancel` from `pointerEventHandler_`, because it is\n * only registered there.\n */\n listen(this.pointerEventHandler_,\n MapBrowserEventType.POINTERCANCEL,\n this.handlePointerUp_, this)\n );\n }\n };\n\n /**\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.handlePointerMove_ = function handlePointerMove_ (pointerEvent) {\n // Between pointerdown and pointerup, pointermove events are triggered.\n // To avoid a 'false' touchmove event to be dispatched, we test if the pointer\n // moved a significant distance.\n if (this.isMoving_(pointerEvent)) {\n this.dragging_ = true;\n var newEvent = new MapBrowserPointerEvent(\n MapBrowserEventType.POINTERDRAG, this.map_, pointerEvent,\n this.dragging_);\n this.dispatchEvent(newEvent);\n }\n\n // Some native android browser triggers mousemove events during small period\n // of time. See: https://code.google.com/p/android/issues/detail?id=5491 or\n // https://code.google.com/p/android/issues/detail?id=19827\n // ex: Galaxy Tab P3110 + Android 4.1.1\n pointerEvent.preventDefault();\n };\n\n /**\n * Wrap and relay a pointer event. Note that this requires that the type\n * string for the MapBrowserPointerEvent matches the PointerEvent type.\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @private\n */\n MapBrowserEventHandler.prototype.relayEvent_ = function relayEvent_ (pointerEvent) {\n var dragging = !!(this.down_ && this.isMoving_(pointerEvent));\n this.dispatchEvent(new MapBrowserPointerEvent(\n pointerEvent.type, this.map_, pointerEvent, dragging));\n };\n\n /**\n * @param {import(\"./pointer/PointerEvent.js\").default} pointerEvent Pointer\n * event.\n * @return {boolean} Is moving.\n * @private\n */\n MapBrowserEventHandler.prototype.isMoving_ = function isMoving_ (pointerEvent) {\n return this.dragging_ ||\n Math.abs(pointerEvent.clientX - this.down_.clientX) > this.moveTolerance_ ||\n Math.abs(pointerEvent.clientY - this.down_.clientY) > this.moveTolerance_;\n };\n\n /**\n * @inheritDoc\n */\n MapBrowserEventHandler.prototype.disposeInternal = function disposeInternal () {\n if (this.relayedListenerKey_) {\n unlistenByKey(this.relayedListenerKey_);\n this.relayedListenerKey_ = null;\n }\n if (this.pointerdownListenerKey_) {\n unlistenByKey(this.pointerdownListenerKey_);\n this.pointerdownListenerKey_ = null;\n }\n\n this.dragListenerKeys_.forEach(unlistenByKey);\n this.dragListenerKeys_.length = 0;\n\n if (this.documentPointerEventHandler_) {\n this.documentPointerEventHandler_.dispose();\n this.documentPointerEventHandler_ = null;\n }\n if (this.pointerEventHandler_) {\n this.pointerEventHandler_.dispose();\n this.pointerEventHandler_ = null;\n }\n EventTarget.prototype.disposeInternal.call(this);\n };\n\n return MapBrowserEventHandler;\n}(EventTarget));\n\n\nexport default MapBrowserEventHandler;\n\n//# sourceMappingURL=MapBrowserEventHandler.js.map","/**\n * @module ol/MapEventType\n */\n\n/**\n * @enum {string}\n */\nexport default {\n\n /**\n * Triggered after a map frame is rendered.\n * @event module:ol/MapEvent~MapEvent#postrender\n * @api\n */\n POSTRENDER: 'postrender',\n\n /**\n * Triggered when the map starts moving.\n * @event module:ol/MapEvent~MapEvent#movestart\n * @api\n */\n MOVESTART: 'movestart',\n\n /**\n * Triggered after the map is moved.\n * @event module:ol/MapEvent~MapEvent#moveend\n * @api\n */\n MOVEEND: 'moveend'\n\n};\n\n//# sourceMappingURL=MapEventType.js.map","/**\n * @module ol/MapProperty\n */\n\n/**\n * @enum {string}\n */\nexport default {\n LAYERGROUP: 'layergroup',\n SIZE: 'size',\n TARGET: 'target',\n VIEW: 'view'\n};\n\n//# sourceMappingURL=MapProperty.js.map","/**\n * @module ol/TileState\n */\n\n/**\n * @enum {number}\n */\nexport default {\n IDLE: 0,\n LOADING: 1,\n LOADED: 2,\n /**\n * Indicates that tile loading failed\n * @type {number}\n */\n ERROR: 3,\n EMPTY: 4,\n ABORT: 5\n};\n\n//# sourceMappingURL=TileState.js.map","/**\n * @module ol/structs/PriorityQueue\n */\nimport {assert} from '../asserts.js';\nimport {clear} from '../obj.js';\n\n\n/**\n * @type {number}\n */\nexport var DROP = Infinity;\n\n\n/**\n * @classdesc\n * Priority queue.\n *\n * The implementation is inspired from the Closure Library's Heap class and\n * Python's heapq module.\n *\n * See http://closure-library.googlecode.com/svn/docs/closure_goog_structs_heap.js.source.html\n * and http://hg.python.org/cpython/file/2.7/Lib/heapq.py.\n *\n * @template T\n */\nvar PriorityQueue = function PriorityQueue(priorityFunction, keyFunction) {\n\n /**\n * @type {function(T): number}\n * @private\n */\n this.priorityFunction_ = priorityFunction;\n\n /**\n * @type {function(T): string}\n * @private\n */\n this.keyFunction_ = keyFunction;\n\n /**\n * @type {Array}\n * @private\n */\n this.elements_ = [];\n\n /**\n * @type {Array}\n * @private\n */\n this.priorities_ = [];\n\n /**\n * @type {!Object}\n * @private\n */\n this.queuedElements_ = {};\n\n};\n\n/**\n * FIXME empty description for jsdoc\n */\nPriorityQueue.prototype.clear = function clear$1 () {\n this.elements_.length = 0;\n this.priorities_.length = 0;\n clear(this.queuedElements_);\n};\n\n\n/**\n * Remove and return the highest-priority element. O(log N).\n * @return {T} Element.\n */\nPriorityQueue.prototype.dequeue = function dequeue () {\n var elements = this.elements_;\n var priorities = this.priorities_;\n var element = elements[0];\n if (elements.length == 1) {\n elements.length = 0;\n priorities.length = 0;\n } else {\n elements[0] = elements.pop();\n priorities[0] = priorities.pop();\n this.siftUp_(0);\n }\n var elementKey = this.keyFunction_(element);\n delete this.queuedElements_[elementKey];\n return element;\n};\n\n\n/**\n * Enqueue an element. O(log N).\n * @param {T} element Element.\n * @return {boolean} The element was added to the queue.\n */\nPriorityQueue.prototype.enqueue = function enqueue (element) {\n assert(!(this.keyFunction_(element) in this.queuedElements_),\n 31); // Tried to enqueue an `element` that was already added to the queue\n var priority = this.priorityFunction_(element);\n if (priority != DROP) {\n this.elements_.push(element);\n this.priorities_.push(priority);\n this.queuedElements_[this.keyFunction_(element)] = true;\n this.siftDown_(0, this.elements_.length - 1);\n return true;\n }\n return false;\n};\n\n\n/**\n * @return {number} Count.\n */\nPriorityQueue.prototype.getCount = function getCount () {\n return this.elements_.length;\n};\n\n\n/**\n * Gets the index of the left child of the node at the given index.\n * @param {number} index The index of the node to get the left child for.\n * @return {number} The index of the left child.\n * @private\n */\nPriorityQueue.prototype.getLeftChildIndex_ = function getLeftChildIndex_ (index) {\n return index * 2 + 1;\n};\n\n\n/**\n * Gets the index of the right child of the node at the given index.\n * @param {number} index The index of the node to get the right child for.\n * @return {number} The index of the right child.\n * @private\n */\nPriorityQueue.prototype.getRightChildIndex_ = function getRightChildIndex_ (index) {\n return index * 2 + 2;\n};\n\n\n/**\n * Gets the index of the parent of the node at the given index.\n * @param {number} index The index of the node to get the parent for.\n * @return {number} The index of the parent.\n * @private\n */\nPriorityQueue.prototype.getParentIndex_ = function getParentIndex_ (index) {\n return (index - 1) >> 1;\n};\n\n\n/**\n * Make this a heap. O(N).\n * @private\n */\nPriorityQueue.prototype.heapify_ = function heapify_ () {\n var i;\n for (i = (this.elements_.length >> 1) - 1; i >= 0; i--) {\n this.siftUp_(i);\n }\n};\n\n\n/**\n * @return {boolean} Is empty.\n */\nPriorityQueue.prototype.isEmpty = function isEmpty () {\n return this.elements_.length === 0;\n};\n\n\n/**\n * @param {string} key Key.\n * @return {boolean} Is key queued.\n */\nPriorityQueue.prototype.isKeyQueued = function isKeyQueued (key) {\n return key in this.queuedElements_;\n};\n\n\n/**\n * @param {T} element Element.\n * @return {boolean} Is queued.\n */\nPriorityQueue.prototype.isQueued = function isQueued (element) {\n return this.isKeyQueued(this.keyFunction_(element));\n};\n\n\n/**\n * @param {number} index The index of the node to move down.\n * @private\n */\nPriorityQueue.prototype.siftUp_ = function siftUp_ (index) {\n var elements = this.elements_;\n var priorities = this.priorities_;\n var count = elements.length;\n var element = elements[index];\n var priority = priorities[index];\n var startIndex = index;\n\n while (index < (count >> 1)) {\n var lIndex = this.getLeftChildIndex_(index);\n var rIndex = this.getRightChildIndex_(index);\n\n var smallerChildIndex = rIndex < count &&\n priorities[rIndex] < priorities[lIndex] ?\n rIndex : lIndex;\n\n elements[index] = elements[smallerChildIndex];\n priorities[index] = priorities[smallerChildIndex];\n index = smallerChildIndex;\n }\n\n elements[index] = element;\n priorities[index] = priority;\n this.siftDown_(startIndex, index);\n};\n\n\n/**\n * @param {number} startIndex The index of the root.\n * @param {number} index The index of the node to move up.\n * @private\n */\nPriorityQueue.prototype.siftDown_ = function siftDown_ (startIndex, index) {\n var elements = this.elements_;\n var priorities = this.priorities_;\n var element = elements[index];\n var priority = priorities[index];\n\n while (index > startIndex) {\n var parentIndex = this.getParentIndex_(index);\n if (priorities[parentIndex] > priority) {\n elements[index] = elements[parentIndex];\n priorities[index] = priorities[parentIndex];\n index = parentIndex;\n } else {\n break;\n }\n }\n elements[index] = element;\n priorities[index] = priority;\n};\n\n\n/**\n * FIXME empty description for jsdoc\n */\nPriorityQueue.prototype.reprioritize = function reprioritize () {\n var priorityFunction = this.priorityFunction_;\n var elements = this.elements_;\n var priorities = this.priorities_;\n var index = 0;\n var n = elements.length;\n var element, i, priority;\n for (i = 0; i < n; ++i) {\n element = elements[i];\n priority = priorityFunction(element);\n if (priority == DROP) {\n delete this.queuedElements_[this.keyFunction_(element)];\n } else {\n priorities[index] = priority;\n elements[index++] = element;\n }\n }\n elements.length = index;\n priorities.length = index;\n this.heapify_();\n};\n\n\nexport default PriorityQueue;\n\n//# sourceMappingURL=PriorityQueue.js.map","/**\n * @module ol/TileQueue\n */\nimport TileState from './TileState.js';\nimport {listen, unlisten} from './events.js';\nimport EventType from './events/EventType.js';\nimport PriorityQueue from './structs/PriorityQueue.js';\n\n\n/**\n * @typedef {function(import(\"./Tile.js\").default, string, import(\"./coordinate.js\").Coordinate, number): number} PriorityFunction\n */\n\n\nvar TileQueue = /*@__PURE__*/(function (PriorityQueue) {\n function TileQueue(tilePriorityFunction, tileChangeCallback) {\n\n PriorityQueue.call(\n /**\n * @param {Array} element Element.\n * @return {number} Priority.\n */\n this, function(element) {\n return tilePriorityFunction.apply(null, element);\n },\n /**\n * @param {Array} element Element.\n * @return {string} Key.\n */\n function(element) {\n return (/** @type {import(\"./Tile.js\").default} */ (element[0]).getKey());\n });\n\n /**\n * @private\n * @type {function(): ?}\n */\n this.tileChangeCallback_ = tileChangeCallback;\n\n /**\n * @private\n * @type {number}\n */\n this.tilesLoading_ = 0;\n\n /**\n * @private\n * @type {!Object}\n */\n this.tilesLoadingKeys_ = {};\n\n }\n\n if ( PriorityQueue ) TileQueue.__proto__ = PriorityQueue;\n TileQueue.prototype = Object.create( PriorityQueue && PriorityQueue.prototype );\n TileQueue.prototype.constructor = TileQueue;\n\n /**\n * @inheritDoc\n */\n TileQueue.prototype.enqueue = function enqueue (element) {\n var added = PriorityQueue.prototype.enqueue.call(this, element);\n if (added) {\n var tile = element[0];\n listen(tile, EventType.CHANGE, this.handleTileChange, this);\n }\n return added;\n };\n\n /**\n * @return {number} Number of tiles loading.\n */\n TileQueue.prototype.getTilesLoading = function getTilesLoading () {\n return this.tilesLoading_;\n };\n\n /**\n * @param {import(\"./events/Event.js\").default} event Event.\n * @protected\n */\n TileQueue.prototype.handleTileChange = function handleTileChange (event) {\n var tile = /** @type {import(\"./Tile.js\").default} */ (event.target);\n var state = tile.getState();\n if (state === TileState.LOADED || state === TileState.ERROR ||\n state === TileState.EMPTY || state === TileState.ABORT) {\n unlisten(tile, EventType.CHANGE, this.handleTileChange, this);\n var tileKey = tile.getKey();\n if (tileKey in this.tilesLoadingKeys_) {\n delete this.tilesLoadingKeys_[tileKey];\n --this.tilesLoading_;\n }\n this.tileChangeCallback_();\n }\n };\n\n /**\n * @param {number} maxTotalLoading Maximum number tiles to load simultaneously.\n * @param {number} maxNewLoads Maximum number of new tiles to load.\n */\n TileQueue.prototype.loadMoreTiles = function loadMoreTiles (maxTotalLoading, maxNewLoads) {\n var newLoads = 0;\n var abortedTiles = false;\n var state, tile, tileKey;\n while (this.tilesLoading_ < maxTotalLoading && newLoads < maxNewLoads &&\n this.getCount() > 0) {\n tile = /** @type {import(\"./Tile.js\").default} */ (this.dequeue()[0]);\n tileKey = tile.getKey();\n state = tile.getState();\n if (state === TileState.ABORT) {\n abortedTiles = true;\n } else if (state === TileState.IDLE && !(tileKey in this.tilesLoadingKeys_)) {\n this.tilesLoadingKeys_[tileKey] = true;\n ++this.tilesLoading_;\n ++newLoads;\n tile.load();\n }\n }\n if (newLoads === 0 && abortedTiles) {\n // Do not stop the render loop when all wanted tiles were aborted due to\n // a small, saturated tile cache.\n this.tileChangeCallback_();\n }\n };\n\n return TileQueue;\n}(PriorityQueue));\n\n\nexport default TileQueue;\n\n//# sourceMappingURL=TileQueue.js.map","/**\n * @module ol/tilegrid/common\n */\n\n/**\n * Default maximum zoom for default tile grids.\n * @type {number}\n */\nexport var DEFAULT_MAX_ZOOM = 42;\n\n/**\n * Default tile size.\n * @type {number}\n */\nexport var DEFAULT_TILE_SIZE = 256;\n\n//# sourceMappingURL=common.js.map","/**\n * @module ol/centerconstraint\n */\nimport {clamp} from './math.js';\n\n\n/**\n * @typedef {function((import(\"./coordinate.js\").Coordinate|undefined)): (import(\"./coordinate.js\").Coordinate|undefined)} Type\n */\n\n\n/**\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @return {Type} The constraint.\n */\nexport function createExtent(extent) {\n return (\n /**\n * @param {import(\"./coordinate.js\").Coordinate=} center Center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center.\n */\n function(center) {\n if (center) {\n return [\n clamp(center[0], extent[0], extent[2]),\n clamp(center[1], extent[1], extent[3])\n ];\n } else {\n return undefined;\n }\n }\n );\n}\n\n\n/**\n * @param {import(\"./coordinate.js\").Coordinate=} center Center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center.\n */\nexport function none(center) {\n return center;\n}\n\n//# sourceMappingURL=centerconstraint.js.map","/**\n * @module ol/rotationconstraint\n */\nimport {toRadians} from './math.js';\n\n\n/**\n * @typedef {function((number|undefined), number): (number|undefined)} Type\n */\n\n\n/**\n * @param {number|undefined} rotation Rotation.\n * @param {number} delta Delta.\n * @return {number|undefined} Rotation.\n */\nexport function disable(rotation, delta) {\n if (rotation !== undefined) {\n return 0;\n } else {\n return undefined;\n }\n}\n\n\n/**\n * @param {number|undefined} rotation Rotation.\n * @param {number} delta Delta.\n * @return {number|undefined} Rotation.\n */\nexport function none(rotation, delta) {\n if (rotation !== undefined) {\n return rotation + delta;\n } else {\n return undefined;\n }\n}\n\n\n/**\n * @param {number} n N.\n * @return {Type} Rotation constraint.\n */\nexport function createSnapToN(n) {\n var theta = 2 * Math.PI / n;\n return (\n /**\n * @param {number|undefined} rotation Rotation.\n * @param {number} delta Delta.\n * @return {number|undefined} Rotation.\n */\n function(rotation, delta) {\n if (rotation !== undefined) {\n rotation = Math.floor((rotation + delta) / theta + 0.5) * theta;\n return rotation;\n } else {\n return undefined;\n }\n });\n}\n\n\n/**\n * @param {number=} opt_tolerance Tolerance.\n * @return {Type} Rotation constraint.\n */\nexport function createSnapToZero(opt_tolerance) {\n var tolerance = opt_tolerance || toRadians(5);\n return (\n /**\n * @param {number|undefined} rotation Rotation.\n * @param {number} delta Delta.\n * @return {number|undefined} Rotation.\n */\n function(rotation, delta) {\n if (rotation !== undefined) {\n if (Math.abs(rotation + delta) <= tolerance) {\n return 0;\n } else {\n return rotation + delta;\n }\n } else {\n return undefined;\n }\n });\n}\n\n//# sourceMappingURL=rotationconstraint.js.map","/**\n * @module ol/ViewHint\n */\n\n/**\n * @enum {number}\n */\nexport default {\n ANIMATING: 0,\n INTERACTING: 1\n};\n\n//# sourceMappingURL=ViewHint.js.map","/**\n * @module ol/ViewProperty\n */\n\n/**\n * @enum {string}\n */\nexport default {\n CENTER: 'center',\n RESOLUTION: 'resolution',\n ROTATION: 'rotation'\n};\n\n//# sourceMappingURL=ViewProperty.js.map","/**\n * @module ol/easing\n */\n\n\n/**\n * Start slow and speed up.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function easeIn(t) {\n return Math.pow(t, 3);\n}\n\n\n/**\n * Start fast and slow down.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function easeOut(t) {\n return 1 - easeIn(1 - t);\n}\n\n\n/**\n * Start slow, speed up, and then slow down again.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function inAndOut(t) {\n return 3 * t * t - 2 * t * t * t;\n}\n\n\n/**\n * Maintain a constant speed over time.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function linear(t) {\n return t;\n}\n\n\n/**\n * Start slow, speed up, and at the very end slow down again. This has the\n * same general behavior as {@link module:ol/easing~inAndOut}, but the final\n * slowdown is delayed.\n * @param {number} t Input between 0 and 1.\n * @return {number} Output between 0 and 1.\n * @api\n */\nexport function upAndDown(t) {\n if (t < 0.5) {\n return inAndOut(2 * t);\n } else {\n return 1 - inAndOut(2 * (t - 0.5));\n }\n}\n\n//# sourceMappingURL=easing.js.map","/**\n * @module ol/View\n */\nimport {DEFAULT_TILE_SIZE} from './tilegrid/common.js';\nimport {getUid} from './util.js';\nimport {VOID} from './functions.js';\nimport {createExtent, none as centerNone} from './centerconstraint.js';\nimport BaseObject from './Object.js';\nimport {createSnapToResolutions, createSnapToPower} from './resolutionconstraint.js';\nimport {createSnapToZero, createSnapToN, none as rotationNone, disable} from './rotationconstraint.js';\nimport ViewHint from './ViewHint.js';\nimport ViewProperty from './ViewProperty.js';\nimport {linearFindNearest} from './array.js';\nimport {assert} from './asserts.js';\nimport {add as addCoordinate, rotate as rotateCoordinate, equals as coordinatesEqual} from './coordinate.js';\nimport {inAndOut} from './easing.js';\nimport {getForViewAndSize, getCenter, getHeight, getWidth, isEmpty} from './extent.js';\nimport GeometryType from './geom/GeometryType.js';\nimport {fromExtent as polygonFromExtent} from './geom/Polygon.js';\nimport {clamp, modulo} from './math.js';\nimport {assign} from './obj.js';\nimport {createProjection, METERS_PER_UNIT} from './proj.js';\nimport Units from './proj/Units.js';\n\n\n/**\n * An animation configuration\n *\n * @typedef {Object} Animation\n * @property {import(\"./coordinate.js\").Coordinate} [sourceCenter]\n * @property {import(\"./coordinate.js\").Coordinate} [targetCenter]\n * @property {number} [sourceResolution]\n * @property {number} [targetResolution]\n * @property {number} [sourceRotation]\n * @property {number} [targetRotation]\n * @property {import(\"./coordinate.js\").Coordinate} [anchor]\n * @property {number} start\n * @property {number} duration\n * @property {boolean} complete\n * @property {function(number):number} easing\n * @property {function(boolean)} callback\n */\n\n\n/**\n * @typedef {Object} Constraints\n * @property {import(\"./centerconstraint.js\").Type} center\n * @property {import(\"./resolutionconstraint.js\").Type} resolution\n * @property {import(\"./rotationconstraint.js\").Type} rotation\n */\n\n\n/**\n * @typedef {Object} FitOptions\n * @property {import(\"./size.js\").Size} [size] The size in pixels of the box to fit\n * the extent into. Default is the current size of the first map in the DOM that\n * uses this view, or `[100, 100]` if no such map is found.\n * @property {!Array} [padding=[0, 0, 0, 0]] Padding (in pixels) to be\n * cleared inside the view. Values in the array are top, right, bottom and left\n * padding.\n * @property {boolean} [constrainResolution=true] Constrain the resolution.\n * @property {boolean} [nearest=false] If `constrainResolution` is `true`, get\n * the nearest extent instead of the closest that actually fits the view.\n * @property {number} [minResolution=0] Minimum resolution that we zoom to.\n * @property {number} [maxZoom] Maximum zoom level that we zoom to. If\n * `minResolution` is given, this property is ignored.\n * @property {number} [duration] The duration of the animation in milliseconds.\n * By default, there is no animation to the target extent.\n * @property {function(number):number} [easing] The easing function used during\n * the animation (defaults to {@link module:ol/easing~inAndOut}).\n * The function will be called for each frame with a number representing a\n * fraction of the animation's duration. The function should return a number\n * between 0 and 1 representing the progress toward the destination state.\n * @property {function(boolean)} [callback] Function called when the view is in\n * its final position. The callback will be called with `true` if the animation\n * series completed on its own or `false` if it was cancelled.\n */\n\n\n/**\n * @typedef {Object} ViewOptions\n * @property {import(\"./coordinate.js\").Coordinate} [center] The initial center for\n * the view. The coordinate system for the center is specified with the\n * `projection` option. Layer sources will not be fetched if this is not set,\n * but the center can be set later with {@link #setCenter}.\n * @property {boolean|number} [constrainRotation=true] Rotation constraint.\n * `false` means no constraint. `true` means no constraint, but snap to zero\n * near zero. A number constrains the rotation to that number of values. For\n * example, `4` will constrain the rotation to 0, 90, 180, and 270 degrees.\n * @property {boolean} [enableRotation=true] Enable rotation.\n * If `false`, a rotation constraint that always sets the rotation to zero is\n * used. The `constrainRotation` option has no effect if `enableRotation` is\n * `false`.\n * @property {import(\"./extent.js\").Extent} [extent] The extent that constrains the\n * center, in other words, center cannot be set outside this extent.\n * @property {number} [maxResolution] The maximum resolution used to determine\n * the resolution constraint. It is used together with `minResolution` (or\n * `maxZoom`) and `zoomFactor`. If unspecified it is calculated in such a way\n * that the projection's validity extent fits in a 256x256 px tile. If the\n * projection is Spherical Mercator (the default) then `maxResolution` defaults\n * to `40075016.68557849 / 256 = 156543.03392804097`.\n * @property {number} [minResolution] The minimum resolution used to determine\n * the resolution constraint. It is used together with `maxResolution` (or\n * `minZoom`) and `zoomFactor`. If unspecified it is calculated assuming 29\n * zoom levels (with a factor of 2). If the projection is Spherical Mercator\n * (the default) then `minResolution` defaults to\n * `40075016.68557849 / 256 / Math.pow(2, 28) = 0.0005831682455839253`.\n * @property {number} [maxZoom=28] The maximum zoom level used to determine the\n * resolution constraint. It is used together with `minZoom` (or\n * `maxResolution`) and `zoomFactor`. Note that if `minResolution` is also\n * provided, it is given precedence over `maxZoom`.\n * @property {number} [minZoom=0] The minimum zoom level used to determine the\n * resolution constraint. It is used together with `maxZoom` (or\n * `minResolution`) and `zoomFactor`. Note that if `maxResolution` is also\n * provided, it is given precedence over `minZoom`.\n * @property {import(\"./proj.js\").ProjectionLike} [projection='EPSG:3857'] The\n * projection. The default is Spherical Mercator.\n * @property {number} [resolution] The initial resolution for the view. The\n * units are `projection` units per pixel (e.g. meters per pixel). An\n * alternative to setting this is to set `zoom`. Layer sources will not be\n * fetched if neither this nor `zoom` are defined, but they can be set later\n * with {@link #setZoom} or {@link #setResolution}.\n * @property {Array} [resolutions] Resolutions to determine the\n * resolution constraint. If set the `maxResolution`, `minResolution`,\n * `minZoom`, `maxZoom`, and `zoomFactor` options are ignored.\n * @property {number} [rotation=0] The initial rotation for the view in radians\n * (positive rotation clockwise, 0 means North).\n * @property {number} [zoom] Only used if `resolution` is not defined. Zoom\n * level used to calculate the initial resolution for the view. The initial\n * resolution is determined using the {@link #constrainResolution} method.\n * @property {number} [zoomFactor=2] The zoom factor used to determine the\n * resolution constraint.\n */\n\n\n/**\n * @typedef {Object} AnimationOptions\n * @property {import(\"./coordinate.js\").Coordinate} [center] The center of the view at the end of\n * the animation.\n * @property {number} [zoom] The zoom level of the view at the end of the\n * animation. This takes precedence over `resolution`.\n * @property {number} [resolution] The resolution of the view at the end\n * of the animation. If `zoom` is also provided, this option will be ignored.\n * @property {number} [rotation] The rotation of the view at the end of\n * the animation.\n * @property {import(\"./coordinate.js\").Coordinate} [anchor] Optional anchor to remained fixed\n * during a rotation or resolution animation.\n * @property {number} [duration=1000] The duration of the animation in milliseconds.\n * @property {function(number):number} [easing] The easing function used\n * during the animation (defaults to {@link module:ol/easing~inAndOut}).\n * The function will be called for each frame with a number representing a\n * fraction of the animation's duration. The function should return a number\n * between 0 and 1 representing the progress toward the destination state.\n */\n\n\n/**\n * @typedef {Object} State\n * @property {import(\"./coordinate.js\").Coordinate} center\n * @property {import(\"./proj/Projection.js\").default} projection\n * @property {number} resolution\n * @property {number} rotation\n * @property {number} zoom\n */\n\n\n/**\n * Default min zoom level for the map view.\n * @type {number}\n */\nvar DEFAULT_MIN_ZOOM = 0;\n\n\n/**\n * @classdesc\n * A View object represents a simple 2D view of the map.\n *\n * This is the object to act upon to change the center, resolution,\n * and rotation of the map.\n *\n * ### The view states\n *\n * An View is determined by three states: `center`, `resolution`,\n * and `rotation`. Each state has a corresponding getter and setter, e.g.\n * `getCenter` and `setCenter` for the `center` state.\n *\n * An View has a `projection`. The projection determines the\n * coordinate system of the center, and its units determine the units of the\n * resolution (projection units per pixel). The default projection is\n * Spherical Mercator (EPSG:3857).\n *\n * ### The constraints\n *\n * `setCenter`, `setResolution` and `setRotation` can be used to change the\n * states of the view. Any value can be passed to the setters. And the value\n * that is passed to a setter will effectively be the value set in the view,\n * and returned by the corresponding getter.\n *\n * But a View object also has a *resolution constraint*, a\n * *rotation constraint* and a *center constraint*.\n *\n * As said above, no constraints are applied when the setters are used to set\n * new states for the view. Applying constraints is done explicitly through\n * the use of the `constrain*` functions (`constrainResolution` and\n * `constrainRotation` and `constrainCenter`).\n *\n * The main users of the constraints are the interactions and the\n * controls. For example, double-clicking on the map changes the view to\n * the \"next\" resolution. And releasing the fingers after pinch-zooming\n * snaps to the closest resolution (with an animation).\n *\n * The *resolution constraint* snaps to specific resolutions. It is\n * determined by the following options: `resolutions`, `maxResolution`,\n * `maxZoom`, and `zoomFactor`. If `resolutions` is set, the other three\n * options are ignored. See documentation for each option for more\n * information.\n *\n * The *rotation constraint* snaps to specific angles. It is determined\n * by the following options: `enableRotation` and `constrainRotation`.\n * By default the rotation value is snapped to zero when approaching the\n * horizontal.\n *\n * The *center constraint* is determined by the `extent` option. By\n * default the center is not constrained at all.\n *\n * @api\n */\nvar View = /*@__PURE__*/(function (BaseObject) {\n function View(opt_options) {\n BaseObject.call(this);\n\n var options = assign({}, opt_options);\n\n /**\n * @private\n * @type {Array}\n */\n this.hints_ = [0, 0];\n\n /**\n * @private\n * @type {Array>}\n */\n this.animations_ = [];\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.updateAnimationKey_;\n\n this.updateAnimations_ = this.updateAnimations_.bind(this);\n\n /**\n * @private\n * @const\n * @type {import(\"./proj/Projection.js\").default}\n */\n this.projection_ = createProjection(options.projection, 'EPSG:3857');\n\n this.applyOptions_(options);\n }\n\n if ( BaseObject ) View.__proto__ = BaseObject;\n View.prototype = Object.create( BaseObject && BaseObject.prototype );\n View.prototype.constructor = View;\n\n /**\n * Set up the view with the given options.\n * @param {ViewOptions} options View options.\n */\n View.prototype.applyOptions_ = function applyOptions_ (options) {\n\n /**\n * @type {Object}\n */\n var properties = {};\n properties[ViewProperty.CENTER] = options.center !== undefined ?\n options.center : null;\n\n var resolutionConstraintInfo = createResolutionConstraint(options);\n\n /**\n * @private\n * @type {number}\n */\n this.maxResolution_ = resolutionConstraintInfo.maxResolution;\n\n /**\n * @private\n * @type {number}\n */\n this.minResolution_ = resolutionConstraintInfo.minResolution;\n\n /**\n * @private\n * @type {number}\n */\n this.zoomFactor_ = resolutionConstraintInfo.zoomFactor;\n\n /**\n * @private\n * @type {Array|undefined}\n */\n this.resolutions_ = options.resolutions;\n\n /**\n * @private\n * @type {number}\n */\n this.minZoom_ = resolutionConstraintInfo.minZoom;\n\n var centerConstraint = createCenterConstraint(options);\n var resolutionConstraint = resolutionConstraintInfo.constraint;\n var rotationConstraint = createRotationConstraint(options);\n\n /**\n * @private\n * @type {Constraints}\n */\n this.constraints_ = {\n center: centerConstraint,\n resolution: resolutionConstraint,\n rotation: rotationConstraint\n };\n\n if (options.resolution !== undefined) {\n properties[ViewProperty.RESOLUTION] = options.resolution;\n } else if (options.zoom !== undefined) {\n properties[ViewProperty.RESOLUTION] = this.constrainResolution(\n this.maxResolution_, options.zoom - this.minZoom_);\n\n if (this.resolutions_) { // in case map zoom is out of min/max zoom range\n properties[ViewProperty.RESOLUTION] = clamp(\n Number(this.getResolution() || properties[ViewProperty.RESOLUTION]),\n this.minResolution_, this.maxResolution_);\n }\n }\n properties[ViewProperty.ROTATION] = options.rotation !== undefined ? options.rotation : 0;\n this.setProperties(properties);\n\n /**\n * @private\n * @type {ViewOptions}\n */\n this.options_ = options;\n\n };\n\n /**\n * Get an updated version of the view options used to construct the view. The\n * current resolution (or zoom), center, and rotation are applied to any stored\n * options. The provided options can be used to apply new min/max zoom or\n * resolution limits.\n * @param {ViewOptions} newOptions New options to be applied.\n * @return {ViewOptions} New options updated with the current view state.\n */\n View.prototype.getUpdatedOptions_ = function getUpdatedOptions_ (newOptions) {\n var options = assign({}, this.options_);\n\n // preserve resolution (or zoom)\n if (options.resolution !== undefined) {\n options.resolution = this.getResolution();\n } else {\n options.zoom = this.getZoom();\n }\n\n // preserve center\n options.center = this.getCenter();\n\n // preserve rotation\n options.rotation = this.getRotation();\n\n return assign({}, options, newOptions);\n };\n\n /**\n * Animate the view. The view's center, zoom (or resolution), and rotation\n * can be animated for smooth transitions between view states. For example,\n * to animate the view to a new zoom level:\n *\n * view.animate({zoom: view.getZoom() + 1});\n *\n * By default, the animation lasts one second and uses in-and-out easing. You\n * can customize this behavior by including `duration` (in milliseconds) and\n * `easing` options (see {@link module:ol/easing}).\n *\n * To chain together multiple animations, call the method with multiple\n * animation objects. For example, to first zoom and then pan:\n *\n * view.animate({zoom: 10}, {center: [0, 0]});\n *\n * If you provide a function as the last argument to the animate method, it\n * will get called at the end of an animation series. The callback will be\n * called with `true` if the animation series completed on its own or `false`\n * if it was cancelled.\n *\n * Animations are cancelled by user interactions (e.g. dragging the map) or by\n * calling `view.setCenter()`, `view.setResolution()`, or `view.setRotation()`\n * (or another method that calls one of these).\n *\n * @param {...(AnimationOptions|function(boolean))} var_args Animation\n * options. Multiple animations can be run in series by passing multiple\n * options objects. To run multiple animations in parallel, call the method\n * multiple times. An optional callback can be provided as a final\n * argument. The callback will be called with a boolean indicating whether\n * the animation completed without being cancelled.\n * @api\n */\n View.prototype.animate = function animate (var_args) {\n var arguments$1 = arguments;\n\n var animationCount = arguments.length;\n var callback;\n if (animationCount > 1 && typeof arguments[animationCount - 1] === 'function') {\n callback = arguments[animationCount - 1];\n --animationCount;\n }\n if (!this.isDef()) {\n // if view properties are not yet set, shortcut to the final state\n var state = arguments[animationCount - 1];\n if (state.center) {\n this.setCenter(state.center);\n }\n if (state.zoom !== undefined) {\n this.setZoom(state.zoom);\n }\n if (state.rotation !== undefined) {\n this.setRotation(state.rotation);\n }\n if (callback) {\n animationCallback(callback, true);\n }\n return;\n }\n var start = Date.now();\n var center = this.getCenter().slice();\n var resolution = this.getResolution();\n var rotation = this.getRotation();\n var series = [];\n for (var i = 0; i < animationCount; ++i) {\n var options = /** @type {AnimationOptions} */ (arguments$1[i]);\n\n var animation = /** @type {Animation} */ ({\n start: start,\n complete: false,\n anchor: options.anchor,\n duration: options.duration !== undefined ? options.duration : 1000,\n easing: options.easing || inAndOut\n });\n\n if (options.center) {\n animation.sourceCenter = center;\n animation.targetCenter = options.center;\n center = animation.targetCenter;\n }\n\n if (options.zoom !== undefined) {\n animation.sourceResolution = resolution;\n animation.targetResolution = this.constrainResolution(\n this.maxResolution_, options.zoom - this.minZoom_, 0);\n resolution = animation.targetResolution;\n } else if (options.resolution) {\n animation.sourceResolution = resolution;\n animation.targetResolution = options.resolution;\n resolution = animation.targetResolution;\n }\n\n if (options.rotation !== undefined) {\n animation.sourceRotation = rotation;\n var delta = modulo(options.rotation - rotation + Math.PI, 2 * Math.PI) - Math.PI;\n animation.targetRotation = rotation + delta;\n rotation = animation.targetRotation;\n }\n\n animation.callback = callback;\n\n // check if animation is a no-op\n if (isNoopAnimation(animation)) {\n animation.complete = true;\n // we still push it onto the series for callback handling\n } else {\n start += animation.duration;\n }\n series.push(animation);\n }\n this.animations_.push(series);\n this.setHint(ViewHint.ANIMATING, 1);\n this.updateAnimations_();\n };\n\n /**\n * Determine if the view is being animated.\n * @return {boolean} The view is being animated.\n * @api\n */\n View.prototype.getAnimating = function getAnimating () {\n return this.hints_[ViewHint.ANIMATING] > 0;\n };\n\n /**\n * Determine if the user is interacting with the view, such as panning or zooming.\n * @return {boolean} The view is being interacted with.\n * @api\n */\n View.prototype.getInteracting = function getInteracting () {\n return this.hints_[ViewHint.INTERACTING] > 0;\n };\n\n /**\n * Cancel any ongoing animations.\n * @api\n */\n View.prototype.cancelAnimations = function cancelAnimations () {\n this.setHint(ViewHint.ANIMATING, -this.hints_[ViewHint.ANIMATING]);\n for (var i = 0, ii = this.animations_.length; i < ii; ++i) {\n var series = this.animations_[i];\n if (series[0].callback) {\n animationCallback(series[0].callback, false);\n }\n }\n this.animations_.length = 0;\n };\n\n /**\n * Update all animations.\n */\n View.prototype.updateAnimations_ = function updateAnimations_ () {\n if (this.updateAnimationKey_ !== undefined) {\n cancelAnimationFrame(this.updateAnimationKey_);\n this.updateAnimationKey_ = undefined;\n }\n if (!this.getAnimating()) {\n return;\n }\n var now = Date.now();\n var more = false;\n for (var i = this.animations_.length - 1; i >= 0; --i) {\n var series = this.animations_[i];\n var seriesComplete = true;\n for (var j = 0, jj = series.length; j < jj; ++j) {\n var animation = series[j];\n if (animation.complete) {\n continue;\n }\n var elapsed = now - animation.start;\n var fraction = animation.duration > 0 ? elapsed / animation.duration : 1;\n if (fraction >= 1) {\n animation.complete = true;\n fraction = 1;\n } else {\n seriesComplete = false;\n }\n var progress = animation.easing(fraction);\n if (animation.sourceCenter) {\n var x0 = animation.sourceCenter[0];\n var y0 = animation.sourceCenter[1];\n var x1 = animation.targetCenter[0];\n var y1 = animation.targetCenter[1];\n var x = x0 + progress * (x1 - x0);\n var y = y0 + progress * (y1 - y0);\n this.set(ViewProperty.CENTER, [x, y]);\n }\n if (animation.sourceResolution && animation.targetResolution) {\n var resolution = progress === 1 ?\n animation.targetResolution :\n animation.sourceResolution + progress * (animation.targetResolution - animation.sourceResolution);\n if (animation.anchor) {\n this.set(ViewProperty.CENTER,\n this.calculateCenterZoom(resolution, animation.anchor));\n }\n this.set(ViewProperty.RESOLUTION, resolution);\n }\n if (animation.sourceRotation !== undefined && animation.targetRotation !== undefined) {\n var rotation = progress === 1 ?\n modulo(animation.targetRotation + Math.PI, 2 * Math.PI) - Math.PI :\n animation.sourceRotation + progress * (animation.targetRotation - animation.sourceRotation);\n if (animation.anchor) {\n this.set(ViewProperty.CENTER,\n this.calculateCenterRotate(rotation, animation.anchor));\n }\n this.set(ViewProperty.ROTATION, rotation);\n }\n more = true;\n if (!animation.complete) {\n break;\n }\n }\n if (seriesComplete) {\n this.animations_[i] = null;\n this.setHint(ViewHint.ANIMATING, -1);\n var callback = series[0].callback;\n if (callback) {\n animationCallback(callback, true);\n }\n }\n }\n // prune completed series\n this.animations_ = this.animations_.filter(Boolean);\n if (more && this.updateAnimationKey_ === undefined) {\n this.updateAnimationKey_ = requestAnimationFrame(this.updateAnimations_);\n }\n };\n\n /**\n * @param {number} rotation Target rotation.\n * @param {import(\"./coordinate.js\").Coordinate} anchor Rotation anchor.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center for rotation and anchor.\n */\n View.prototype.calculateCenterRotate = function calculateCenterRotate (rotation, anchor) {\n var center;\n var currentCenter = this.getCenter();\n if (currentCenter !== undefined) {\n center = [currentCenter[0] - anchor[0], currentCenter[1] - anchor[1]];\n rotateCoordinate(center, rotation - this.getRotation());\n addCoordinate(center, anchor);\n }\n return center;\n };\n\n /**\n * @param {number} resolution Target resolution.\n * @param {import(\"./coordinate.js\").Coordinate} anchor Zoom anchor.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Center for resolution and anchor.\n */\n View.prototype.calculateCenterZoom = function calculateCenterZoom (resolution, anchor) {\n var center;\n var currentCenter = this.getCenter();\n var currentResolution = this.getResolution();\n if (currentCenter !== undefined && currentResolution !== undefined) {\n var x = anchor[0] - resolution * (anchor[0] - currentCenter[0]) / currentResolution;\n var y = anchor[1] - resolution * (anchor[1] - currentCenter[1]) / currentResolution;\n center = [x, y];\n }\n return center;\n };\n\n /**\n * @private\n * @return {import(\"./size.js\").Size} Viewport size or `[100, 100]` when no viewport is found.\n */\n View.prototype.getSizeFromViewport_ = function getSizeFromViewport_ () {\n var size = [100, 100];\n var selector = '.ol-viewport[data-view=\"' + getUid(this) + '\"]';\n var element = document.querySelector(selector);\n if (element) {\n var metrics = getComputedStyle(element);\n size[0] = parseInt(metrics.width, 10);\n size[1] = parseInt(metrics.height, 10);\n }\n return size;\n };\n\n /**\n * Get the constrained center of this view.\n * @param {import(\"./coordinate.js\").Coordinate|undefined} center Center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} Constrained center.\n * @api\n */\n View.prototype.constrainCenter = function constrainCenter (center) {\n return this.constraints_.center(center);\n };\n\n /**\n * Get the constrained resolution of this view.\n * @param {number|undefined} resolution Resolution.\n * @param {number=} opt_delta Delta. Default is `0`.\n * @param {number=} opt_direction Direction. Default is `0`.\n * @return {number|undefined} Constrained resolution.\n * @api\n */\n View.prototype.constrainResolution = function constrainResolution (resolution, opt_delta, opt_direction) {\n var delta = opt_delta || 0;\n var direction = opt_direction || 0;\n return this.constraints_.resolution(resolution, delta, direction);\n };\n\n /**\n * Get the constrained rotation of this view.\n * @param {number|undefined} rotation Rotation.\n * @param {number=} opt_delta Delta. Default is `0`.\n * @return {number|undefined} Constrained rotation.\n * @api\n */\n View.prototype.constrainRotation = function constrainRotation (rotation, opt_delta) {\n var delta = opt_delta || 0;\n return this.constraints_.rotation(rotation, delta);\n };\n\n /**\n * Get the view center.\n * @return {import(\"./coordinate.js\").Coordinate|undefined} The center of the view.\n * @observable\n * @api\n */\n View.prototype.getCenter = function getCenter () {\n return (\n /** @type {import(\"./coordinate.js\").Coordinate|undefined} */ (this.get(ViewProperty.CENTER))\n );\n };\n\n /**\n * @return {Constraints} Constraints.\n */\n View.prototype.getConstraints = function getConstraints () {\n return this.constraints_;\n };\n\n /**\n * @param {Array=} opt_hints Destination array.\n * @return {Array} Hint.\n */\n View.prototype.getHints = function getHints (opt_hints) {\n if (opt_hints !== undefined) {\n opt_hints[0] = this.hints_[0];\n opt_hints[1] = this.hints_[1];\n return opt_hints;\n } else {\n return this.hints_.slice();\n }\n };\n\n /**\n * Calculate the extent for the current view state and the passed size.\n * The size is the pixel dimensions of the box into which the calculated extent\n * should fit. In most cases you want to get the extent of the entire map,\n * that is `map.getSize()`.\n * @param {import(\"./size.js\").Size=} opt_size Box pixel size. If not provided, the size of the\n * first map that uses this view will be used.\n * @return {import(\"./extent.js\").Extent} Extent.\n * @api\n */\n View.prototype.calculateExtent = function calculateExtent (opt_size) {\n var size = opt_size || this.getSizeFromViewport_();\n var center = /** @type {!import(\"./coordinate.js\").Coordinate} */ (this.getCenter());\n assert(center, 1); // The view center is not defined\n var resolution = /** @type {!number} */ (this.getResolution());\n assert(resolution !== undefined, 2); // The view resolution is not defined\n var rotation = /** @type {!number} */ (this.getRotation());\n assert(rotation !== undefined, 3); // The view rotation is not defined\n\n return getForViewAndSize(center, resolution, rotation, size);\n };\n\n /**\n * Get the maximum resolution of the view.\n * @return {number} The maximum resolution of the view.\n * @api\n */\n View.prototype.getMaxResolution = function getMaxResolution () {\n return this.maxResolution_;\n };\n\n /**\n * Get the minimum resolution of the view.\n * @return {number} The minimum resolution of the view.\n * @api\n */\n View.prototype.getMinResolution = function getMinResolution () {\n return this.minResolution_;\n };\n\n /**\n * Get the maximum zoom level for the view.\n * @return {number} The maximum zoom level.\n * @api\n */\n View.prototype.getMaxZoom = function getMaxZoom () {\n return /** @type {number} */ (this.getZoomForResolution(this.minResolution_));\n };\n\n /**\n * Set a new maximum zoom level for the view.\n * @param {number} zoom The maximum zoom level.\n * @api\n */\n View.prototype.setMaxZoom = function setMaxZoom (zoom) {\n this.applyOptions_(this.getUpdatedOptions_({maxZoom: zoom}));\n };\n\n /**\n * Get the minimum zoom level for the view.\n * @return {number} The minimum zoom level.\n * @api\n */\n View.prototype.getMinZoom = function getMinZoom () {\n return /** @type {number} */ (this.getZoomForResolution(this.maxResolution_));\n };\n\n /**\n * Set a new minimum zoom level for the view.\n * @param {number} zoom The minimum zoom level.\n * @api\n */\n View.prototype.setMinZoom = function setMinZoom (zoom) {\n this.applyOptions_(this.getUpdatedOptions_({minZoom: zoom}));\n };\n\n /**\n * Get the view projection.\n * @return {import(\"./proj/Projection.js\").default} The projection of the view.\n * @api\n */\n View.prototype.getProjection = function getProjection () {\n return this.projection_;\n };\n\n /**\n * Get the view resolution.\n * @return {number|undefined} The resolution of the view.\n * @observable\n * @api\n */\n View.prototype.getResolution = function getResolution () {\n return /** @type {number|undefined} */ (this.get(ViewProperty.RESOLUTION));\n };\n\n /**\n * Get the resolutions for the view. This returns the array of resolutions\n * passed to the constructor of the View, or undefined if none were given.\n * @return {Array|undefined} The resolutions of the view.\n * @api\n */\n View.prototype.getResolutions = function getResolutions () {\n return this.resolutions_;\n };\n\n /**\n * Get the resolution for a provided extent (in map units) and size (in pixels).\n * @param {import(\"./extent.js\").Extent} extent Extent.\n * @param {import(\"./size.js\").Size=} opt_size Box pixel size.\n * @return {number} The resolution at which the provided extent will render at\n * the given size.\n * @api\n */\n View.prototype.getResolutionForExtent = function getResolutionForExtent (extent, opt_size) {\n var size = opt_size || this.getSizeFromViewport_();\n var xResolution = getWidth(extent) / size[0];\n var yResolution = getHeight(extent) / size[1];\n return Math.max(xResolution, yResolution);\n };\n\n /**\n * Return a function that returns a value between 0 and 1 for a\n * resolution. Exponential scaling is assumed.\n * @param {number=} opt_power Power.\n * @return {function(number): number} Resolution for value function.\n */\n View.prototype.getResolutionForValueFunction = function getResolutionForValueFunction (opt_power) {\n var power = opt_power || 2;\n var maxResolution = this.maxResolution_;\n var minResolution = this.minResolution_;\n var max = Math.log(maxResolution / minResolution) / Math.log(power);\n return (\n /**\n * @param {number} value Value.\n * @return {number} Resolution.\n */\n function(value) {\n var resolution = maxResolution / Math.pow(power, value * max);\n return resolution;\n });\n };\n\n /**\n * Get the view rotation.\n * @return {number} The rotation of the view in radians.\n * @observable\n * @api\n */\n View.prototype.getRotation = function getRotation () {\n return /** @type {number} */ (this.get(ViewProperty.ROTATION));\n };\n\n /**\n * Return a function that returns a resolution for a value between\n * 0 and 1. Exponential scaling is assumed.\n * @param {number=} opt_power Power.\n * @return {function(number): number} Value for resolution function.\n */\n View.prototype.getValueForResolutionFunction = function getValueForResolutionFunction (opt_power) {\n var power = opt_power || 2;\n var maxResolution = this.maxResolution_;\n var minResolution = this.minResolution_;\n var max = Math.log(maxResolution / minResolution) / Math.log(power);\n return (\n /**\n * @param {number} resolution Resolution.\n * @return {number} Value.\n */\n function(resolution) {\n var value = (Math.log(maxResolution / resolution) / Math.log(power)) / max;\n return value;\n });\n };\n\n /**\n * @param {number} pixelRatio Pixel ratio for center rounding.\n * @return {State} View state.\n */\n View.prototype.getState = function getState (pixelRatio) {\n var center = /** @type {import(\"./coordinate.js\").Coordinate} */ (this.getCenter());\n var projection = this.getProjection();\n var resolution = /** @type {number} */ (this.getResolution());\n var pixelResolution = resolution / pixelRatio;\n var rotation = this.getRotation();\n return (\n /** @type {State} */ ({\n center: [\n Math.round(center[0] / pixelResolution) * pixelResolution,\n Math.round(center[1] / pixelResolution) * pixelResolution\n ],\n projection: projection !== undefined ? projection : null,\n resolution: resolution,\n rotation: rotation,\n zoom: this.getZoom()\n })\n );\n };\n\n /**\n * Get the current zoom level. If you configured your view with a resolutions\n * array (this is rare), this method may return non-integer zoom levels (so\n * the zoom level is not safe to use as an index into a resolutions array).\n * @return {number|undefined} Zoom.\n * @api\n */\n View.prototype.getZoom = function getZoom () {\n var zoom;\n var resolution = this.getResolution();\n if (resolution !== undefined) {\n zoom = this.getZoomForResolution(resolution);\n }\n return zoom;\n };\n\n /**\n * Get the zoom level for a resolution.\n * @param {number} resolution The resolution.\n * @return {number|undefined} The zoom level for the provided resolution.\n * @api\n */\n View.prototype.getZoomForResolution = function getZoomForResolution (resolution) {\n var offset = this.minZoom_ || 0;\n var max, zoomFactor;\n if (this.resolutions_) {\n var nearest = linearFindNearest(this.resolutions_, resolution, 1);\n offset = nearest;\n max = this.resolutions_[nearest];\n if (nearest == this.resolutions_.length - 1) {\n zoomFactor = 2;\n } else {\n zoomFactor = max / this.resolutions_[nearest + 1];\n }\n } else {\n max = this.maxResolution_;\n zoomFactor = this.zoomFactor_;\n }\n return offset + Math.log(max / resolution) / Math.log(zoomFactor);\n };\n\n /**\n * Get the resolution for a zoom level.\n * @param {number} zoom Zoom level.\n * @return {number} The view resolution for the provided zoom level.\n * @api\n */\n View.prototype.getResolutionForZoom = function getResolutionForZoom (zoom) {\n return /** @type {number} */ (this.constrainResolution(\n this.maxResolution_, zoom - this.minZoom_, 0));\n };\n\n /**\n * Fit the given geometry or extent based on the given map size and border.\n * The size is pixel dimensions of the box to fit the extent into.\n * In most cases you will want to use the map size, that is `map.getSize()`.\n * Takes care of the map angle.\n * @param {import(\"./geom/SimpleGeometry.js\").default|import(\"./extent.js\").Extent} geometryOrExtent The geometry or\n * extent to fit the view to.\n * @param {FitOptions=} opt_options Options.\n * @api\n */\n View.prototype.fit = function fit (geometryOrExtent, opt_options) {\n var options = opt_options || {};\n var size = options.size;\n if (!size) {\n size = this.getSizeFromViewport_();\n }\n /** @type {import(\"./geom/SimpleGeometry.js\").default} */\n var geometry;\n assert(Array.isArray(geometryOrExtent) || typeof /** @type {?} */ (geometryOrExtent).getSimplifiedGeometry === 'function',\n 24); // Invalid extent or geometry provided as `geometry`\n if (Array.isArray(geometryOrExtent)) {\n assert(!isEmpty(geometryOrExtent),\n 25); // Cannot fit empty extent provided as `geometry`\n geometry = polygonFromExtent(geometryOrExtent);\n } else if (geometryOrExtent.getType() === GeometryType.CIRCLE) {\n geometryOrExtent = geometryOrExtent.getExtent();\n geometry = polygonFromExtent(geometryOrExtent);\n geometry.rotate(this.getRotation(), getCenter(geometryOrExtent));\n } else {\n geometry = geometryOrExtent;\n }\n\n var padding = options.padding !== undefined ? options.padding : [0, 0, 0, 0];\n var constrainResolution = options.constrainResolution !== undefined ?\n options.constrainResolution : true;\n var nearest = options.nearest !== undefined ? options.nearest : false;\n var minResolution;\n if (options.minResolution !== undefined) {\n minResolution = options.minResolution;\n } else if (options.maxZoom !== undefined) {\n minResolution = this.constrainResolution(\n this.maxResolution_, options.maxZoom - this.minZoom_, 0);\n } else {\n minResolution = 0;\n }\n var coords = geometry.getFlatCoordinates();\n\n // calculate rotated extent\n var rotation = this.getRotation();\n var cosAngle = Math.cos(-rotation);\n var sinAngle = Math.sin(-rotation);\n var minRotX = +Infinity;\n var minRotY = +Infinity;\n var maxRotX = -Infinity;\n var maxRotY = -Infinity;\n var stride = geometry.getStride();\n for (var i = 0, ii = coords.length; i < ii; i += stride) {\n var rotX = coords[i] * cosAngle - coords[i + 1] * sinAngle;\n var rotY = coords[i] * sinAngle + coords[i + 1] * cosAngle;\n minRotX = Math.min(minRotX, rotX);\n minRotY = Math.min(minRotY, rotY);\n maxRotX = Math.max(maxRotX, rotX);\n maxRotY = Math.max(maxRotY, rotY);\n }\n\n // calculate resolution\n var resolution = this.getResolutionForExtent(\n [minRotX, minRotY, maxRotX, maxRotY],\n [size[0] - padding[1] - padding[3], size[1] - padding[0] - padding[2]]);\n resolution = isNaN(resolution) ? minResolution :\n Math.max(resolution, minResolution);\n if (constrainResolution) {\n var constrainedResolution = this.constrainResolution(resolution, 0, 0);\n if (!nearest && constrainedResolution < resolution) {\n constrainedResolution = this.constrainResolution(\n constrainedResolution, -1, 0);\n }\n resolution = constrainedResolution;\n }\n\n // calculate center\n sinAngle = -sinAngle; // go back to original rotation\n var centerRotX = (minRotX + maxRotX) / 2;\n var centerRotY = (minRotY + maxRotY) / 2;\n centerRotX += (padding[1] - padding[3]) / 2 * resolution;\n centerRotY += (padding[0] - padding[2]) / 2 * resolution;\n var centerX = centerRotX * cosAngle - centerRotY * sinAngle;\n var centerY = centerRotY * cosAngle + centerRotX * sinAngle;\n var center = [centerX, centerY];\n var callback = options.callback ? options.callback : VOID;\n\n if (options.duration !== undefined) {\n this.animate({\n resolution: resolution,\n center: center,\n duration: options.duration,\n easing: options.easing\n }, callback);\n } else {\n this.setResolution(resolution);\n this.setCenter(center);\n animationCallback(callback, true);\n }\n };\n\n /**\n * Center on coordinate and view position.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate Coordinate.\n * @param {import(\"./size.js\").Size} size Box pixel size.\n * @param {import(\"./pixel.js\").Pixel} position Position on the view to center on.\n * @api\n */\n View.prototype.centerOn = function centerOn (coordinate, size, position) {\n // calculate rotated position\n var rotation = this.getRotation();\n var cosAngle = Math.cos(-rotation);\n var sinAngle = Math.sin(-rotation);\n var rotX = coordinate[0] * cosAngle - coordinate[1] * sinAngle;\n var rotY = coordinate[1] * cosAngle + coordinate[0] * sinAngle;\n var resolution = this.getResolution();\n rotX += (size[0] / 2 - position[0]) * resolution;\n rotY += (position[1] - size[1] / 2) * resolution;\n\n // go back to original angle\n sinAngle = -sinAngle; // go back to original rotation\n var centerX = rotX * cosAngle - rotY * sinAngle;\n var centerY = rotY * cosAngle + rotX * sinAngle;\n\n this.setCenter([centerX, centerY]);\n };\n\n /**\n * @return {boolean} Is defined.\n */\n View.prototype.isDef = function isDef () {\n return !!this.getCenter() && this.getResolution() !== undefined;\n };\n\n /**\n * Rotate the view around a given coordinate.\n * @param {number} rotation New rotation value for the view.\n * @param {import(\"./coordinate.js\").Coordinate=} opt_anchor The rotation center.\n * @api\n */\n View.prototype.rotate = function rotate (rotation, opt_anchor) {\n if (opt_anchor !== undefined) {\n var center = this.calculateCenterRotate(rotation, opt_anchor);\n this.setCenter(center);\n }\n this.setRotation(rotation);\n };\n\n /**\n * Set the center of the current view.\n * @param {import(\"./coordinate.js\").Coordinate|undefined} center The center of the view.\n * @observable\n * @api\n */\n View.prototype.setCenter = function setCenter (center) {\n this.set(ViewProperty.CENTER, center);\n if (this.getAnimating()) {\n this.cancelAnimations();\n }\n };\n\n /**\n * @param {ViewHint} hint Hint.\n * @param {number} delta Delta.\n * @return {number} New value.\n */\n View.prototype.setHint = function setHint (hint, delta) {\n this.hints_[hint] += delta;\n this.changed();\n return this.hints_[hint];\n };\n\n /**\n * Set the resolution for this view.\n * @param {number|undefined} resolution The resolution of the view.\n * @observable\n * @api\n */\n View.prototype.setResolution = function setResolution (resolution) {\n this.set(ViewProperty.RESOLUTION, resolution);\n if (this.getAnimating()) {\n this.cancelAnimations();\n }\n };\n\n /**\n * Set the rotation for this view.\n * @param {number} rotation The rotation of the view in radians.\n * @observable\n * @api\n */\n View.prototype.setRotation = function setRotation (rotation) {\n this.set(ViewProperty.ROTATION, rotation);\n if (this.getAnimating()) {\n this.cancelAnimations();\n }\n };\n\n /**\n * Zoom to a specific zoom level.\n * @param {number} zoom Zoom level.\n * @api\n */\n View.prototype.setZoom = function setZoom (zoom) {\n this.setResolution(this.getResolutionForZoom(zoom));\n };\n\n return View;\n}(BaseObject));\n\n\n/**\n * @param {Function} callback Callback.\n * @param {*} returnValue Return value.\n */\nfunction animationCallback(callback, returnValue) {\n setTimeout(function() {\n callback(returnValue);\n }, 0);\n}\n\n\n/**\n * @param {ViewOptions} options View options.\n * @return {import(\"./centerconstraint.js\").Type} The constraint.\n */\nexport function createCenterConstraint(options) {\n if (options.extent !== undefined) {\n return createExtent(options.extent);\n } else {\n return centerNone;\n }\n}\n\n\n/**\n * @param {ViewOptions} options View options.\n * @return {{constraint: import(\"./resolutionconstraint.js\").Type, maxResolution: number,\n * minResolution: number, minZoom: number, zoomFactor: number}} The constraint.\n */\nexport function createResolutionConstraint(options) {\n var resolutionConstraint;\n var maxResolution;\n var minResolution;\n\n // TODO: move these to be ol constants\n // see https://github.com/openlayers/openlayers/issues/2076\n var defaultMaxZoom = 28;\n var defaultZoomFactor = 2;\n\n var minZoom = options.minZoom !== undefined ?\n options.minZoom : DEFAULT_MIN_ZOOM;\n\n var maxZoom = options.maxZoom !== undefined ?\n options.maxZoom : defaultMaxZoom;\n\n var zoomFactor = options.zoomFactor !== undefined ?\n options.zoomFactor : defaultZoomFactor;\n\n if (options.resolutions !== undefined) {\n var resolutions = options.resolutions;\n maxResolution = resolutions[minZoom];\n minResolution = resolutions[maxZoom] !== undefined ?\n resolutions[maxZoom] : resolutions[resolutions.length - 1];\n resolutionConstraint = createSnapToResolutions(\n resolutions);\n } else {\n // calculate the default min and max resolution\n var projection = createProjection(options.projection, 'EPSG:3857');\n var extent = projection.getExtent();\n var size = !extent ?\n // use an extent that can fit the whole world if need be\n 360 * METERS_PER_UNIT[Units.DEGREES] /\n projection.getMetersPerUnit() :\n Math.max(getWidth(extent), getHeight(extent));\n\n var defaultMaxResolution = size / DEFAULT_TILE_SIZE / Math.pow(\n defaultZoomFactor, DEFAULT_MIN_ZOOM);\n\n var defaultMinResolution = defaultMaxResolution / Math.pow(\n defaultZoomFactor, defaultMaxZoom - DEFAULT_MIN_ZOOM);\n\n // user provided maxResolution takes precedence\n maxResolution = options.maxResolution;\n if (maxResolution !== undefined) {\n minZoom = 0;\n } else {\n maxResolution = defaultMaxResolution / Math.pow(zoomFactor, minZoom);\n }\n\n // user provided minResolution takes precedence\n minResolution = options.minResolution;\n if (minResolution === undefined) {\n if (options.maxZoom !== undefined) {\n if (options.maxResolution !== undefined) {\n minResolution = maxResolution / Math.pow(zoomFactor, maxZoom);\n } else {\n minResolution = defaultMaxResolution / Math.pow(zoomFactor, maxZoom);\n }\n } else {\n minResolution = defaultMinResolution;\n }\n }\n\n // given discrete zoom levels, minResolution may be different than provided\n maxZoom = minZoom + Math.floor(\n Math.log(maxResolution / minResolution) / Math.log(zoomFactor));\n minResolution = maxResolution / Math.pow(zoomFactor, maxZoom - minZoom);\n\n resolutionConstraint = createSnapToPower(\n zoomFactor, maxResolution, maxZoom - minZoom);\n }\n return {constraint: resolutionConstraint, maxResolution: maxResolution,\n minResolution: minResolution, minZoom: minZoom, zoomFactor: zoomFactor};\n}\n\n\n/**\n * @param {ViewOptions} options View options.\n * @return {import(\"./rotationconstraint.js\").Type} Rotation constraint.\n */\nexport function createRotationConstraint(options) {\n var enableRotation = options.enableRotation !== undefined ?\n options.enableRotation : true;\n if (enableRotation) {\n var constrainRotation = options.constrainRotation;\n if (constrainRotation === undefined || constrainRotation === true) {\n return createSnapToZero();\n } else if (constrainRotation === false) {\n return rotationNone;\n } else if (typeof constrainRotation === 'number') {\n return createSnapToN(constrainRotation);\n } else {\n return rotationNone;\n }\n } else {\n return disable;\n }\n}\n\n\n/**\n * Determine if an animation involves no view change.\n * @param {Animation} animation The animation.\n * @return {boolean} The animation involves no view change.\n */\nexport function isNoopAnimation(animation) {\n if (animation.sourceCenter && animation.targetCenter) {\n if (!coordinatesEqual(animation.sourceCenter, animation.targetCenter)) {\n return false;\n }\n }\n if (animation.sourceResolution !== animation.targetResolution) {\n return false;\n }\n if (animation.sourceRotation !== animation.targetRotation) {\n return false;\n }\n return true;\n}\n\nexport default View;\n\n//# sourceMappingURL=View.js.map","/**\n * @module ol/resolutionconstraint\n */\nimport {linearFindNearest} from './array.js';\nimport {clamp} from './math.js';\n\n\n/**\n * @typedef {function((number|undefined), number, number): (number|undefined)} Type\n */\n\n\n/**\n * @param {Array} resolutions Resolutions.\n * @return {Type} Zoom function.\n */\nexport function createSnapToResolutions(resolutions) {\n return (\n /**\n * @param {number|undefined} resolution Resolution.\n * @param {number} delta Delta.\n * @param {number} direction Direction.\n * @return {number|undefined} Resolution.\n */\n function(resolution, delta, direction) {\n if (resolution !== undefined) {\n var z = linearFindNearest(resolutions, resolution, direction);\n z = clamp(z + delta, 0, resolutions.length - 1);\n var index = Math.floor(z);\n if (z != index && index < resolutions.length - 1) {\n var power = resolutions[index] / resolutions[index + 1];\n return resolutions[index] / Math.pow(power, z - index);\n } else {\n return resolutions[index];\n }\n } else {\n return undefined;\n }\n }\n );\n}\n\n\n/**\n * @param {number} power Power.\n * @param {number} maxResolution Maximum resolution.\n * @param {number=} opt_maxLevel Maximum level.\n * @return {Type} Zoom function.\n */\nexport function createSnapToPower(power, maxResolution, opt_maxLevel) {\n return (\n /**\n * @param {number|undefined} resolution Resolution.\n * @param {number} delta Delta.\n * @param {number} direction Direction.\n * @return {number|undefined} Resolution.\n */\n function(resolution, delta, direction) {\n if (resolution !== undefined) {\n var offset = -direction / 2 + 0.5;\n var oldLevel = Math.floor(\n Math.log(maxResolution / resolution) / Math.log(power) + offset);\n var newLevel = Math.max(oldLevel + delta, 0);\n if (opt_maxLevel !== undefined) {\n newLevel = Math.min(newLevel, opt_maxLevel);\n }\n return maxResolution / Math.pow(power, newLevel);\n } else {\n return undefined;\n }\n });\n}\n\n//# sourceMappingURL=resolutionconstraint.js.map","/**\n * @module ol/dom\n */\n\n\n/**\n * Create an html canvas element and returns its 2d context.\n * @param {number=} opt_width Canvas width.\n * @param {number=} opt_height Canvas height.\n * @return {CanvasRenderingContext2D} The context.\n */\nexport function createCanvasContext2D(opt_width, opt_height) {\n var canvas = /** @type {HTMLCanvasElement} */ (document.createElement('canvas'));\n if (opt_width) {\n canvas.width = opt_width;\n }\n if (opt_height) {\n canvas.height = opt_height;\n }\n return /** @type {CanvasRenderingContext2D} */ (canvas.getContext('2d'));\n}\n\n\n/**\n * Get the current computed width for the given element including margin,\n * padding and border.\n * Equivalent to jQuery's `$(el).outerWidth(true)`.\n * @param {!HTMLElement} element Element.\n * @return {number} The width.\n */\nexport function outerWidth(element) {\n var width = element.offsetWidth;\n var style = getComputedStyle(element);\n width += parseInt(style.marginLeft, 10) + parseInt(style.marginRight, 10);\n\n return width;\n}\n\n\n/**\n * Get the current computed height for the given element including margin,\n * padding and border.\n * Equivalent to jQuery's `$(el).outerHeight(true)`.\n * @param {!HTMLElement} element Element.\n * @return {number} The height.\n */\nexport function outerHeight(element) {\n var height = element.offsetHeight;\n var style = getComputedStyle(element);\n height += parseInt(style.marginTop, 10) + parseInt(style.marginBottom, 10);\n\n return height;\n}\n\n/**\n * @param {Node} newNode Node to replace old node\n * @param {Node} oldNode The node to be replaced\n */\nexport function replaceNode(newNode, oldNode) {\n var parent = oldNode.parentNode;\n if (parent) {\n parent.replaceChild(newNode, oldNode);\n }\n}\n\n/**\n * @param {Node} node The node to remove.\n * @returns {Node} The node that was removed or null.\n */\nexport function removeNode(node) {\n return node && node.parentNode ? node.parentNode.removeChild(node) : null;\n}\n\n/**\n * @param {Node} node The node to remove the children from.\n */\nexport function removeChildren(node) {\n while (node.lastChild) {\n node.removeChild(node.lastChild);\n }\n}\n\n//# sourceMappingURL=dom.js.map","/**\n * @module ol/layer/Property\n */\n\n/**\n * @enum {string}\n */\nexport default {\n OPACITY: 'opacity',\n VISIBLE: 'visible',\n EXTENT: 'extent',\n Z_INDEX: 'zIndex',\n MAX_RESOLUTION: 'maxResolution',\n MIN_RESOLUTION: 'minResolution',\n SOURCE: 'source'\n};\n\n//# sourceMappingURL=Property.js.map","/**\n * @module ol/layer/Base\n */\nimport {abstract} from '../util.js';\nimport BaseObject from '../Object.js';\nimport LayerProperty from './Property.js';\nimport {clamp} from '../math.js';\nimport {assign} from '../obj.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n */\n\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * Note that with {@link module:ol/layer/Base} and all its subclasses, any property set in\n * the options is set as a {@link module:ol/Object} property on the layer object, so\n * is observable, and has get/set accessors.\n *\n * @api\n */\nvar BaseLayer = /*@__PURE__*/(function (BaseObject) {\n function BaseLayer(options) {\n\n BaseObject.call(this);\n\n /**\n * @type {Object}\n */\n var properties = assign({}, options);\n properties[LayerProperty.OPACITY] =\n options.opacity !== undefined ? options.opacity : 1;\n properties[LayerProperty.VISIBLE] =\n options.visible !== undefined ? options.visible : true;\n properties[LayerProperty.Z_INDEX] = options.zIndex;\n properties[LayerProperty.MAX_RESOLUTION] =\n options.maxResolution !== undefined ? options.maxResolution : Infinity;\n properties[LayerProperty.MIN_RESOLUTION] =\n options.minResolution !== undefined ? options.minResolution : 0;\n\n this.setProperties(properties);\n\n /**\n * @type {import(\"./Layer.js\").State}\n * @private\n */\n this.state_ = null;\n\n /**\n * The layer type.\n * @type {import(\"../LayerType.js\").default}\n * @protected;\n */\n this.type;\n\n }\n\n if ( BaseObject ) BaseLayer.__proto__ = BaseObject;\n BaseLayer.prototype = Object.create( BaseObject && BaseObject.prototype );\n BaseLayer.prototype.constructor = BaseLayer;\n\n /**\n * Get the layer type (used when creating a layer renderer).\n * @return {import(\"../LayerType.js\").default} The layer type.\n */\n BaseLayer.prototype.getType = function getType () {\n return this.type;\n };\n\n /**\n * @return {import(\"./Layer.js\").State} Layer state.\n */\n BaseLayer.prototype.getLayerState = function getLayerState () {\n /** @type {import(\"./Layer.js\").State} */\n var state = this.state_ || /** @type {?} */ ({\n layer: this,\n managed: true\n });\n state.opacity = clamp(this.getOpacity(), 0, 1);\n state.sourceState = this.getSourceState();\n state.visible = this.getVisible();\n state.extent = this.getExtent();\n state.zIndex = this.getZIndex() || 0;\n state.maxResolution = this.getMaxResolution();\n state.minResolution = Math.max(this.getMinResolution(), 0);\n this.state_ = state;\n\n return state;\n };\n\n /**\n * @abstract\n * @param {Array=} opt_array Array of layers (to be\n * modified in place).\n * @return {Array} Array of layers.\n */\n BaseLayer.prototype.getLayersArray = function getLayersArray (opt_array) {\n return abstract();\n };\n\n /**\n * @abstract\n * @param {Array=} opt_states Optional list of layer\n * states (to be modified in place).\n * @return {Array} List of layer states.\n */\n BaseLayer.prototype.getLayerStatesArray = function getLayerStatesArray (opt_states) {\n return abstract();\n };\n\n /**\n * Return the {@link module:ol/extent~Extent extent} of the layer or `undefined` if it\n * will be visible regardless of extent.\n * @return {import(\"../extent.js\").Extent|undefined} The layer extent.\n * @observable\n * @api\n */\n BaseLayer.prototype.getExtent = function getExtent () {\n return (\n /** @type {import(\"../extent.js\").Extent|undefined} */ (this.get(LayerProperty.EXTENT))\n );\n };\n\n /**\n * Return the maximum resolution of the layer.\n * @return {number} The maximum resolution of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.getMaxResolution = function getMaxResolution () {\n return /** @type {number} */ (this.get(LayerProperty.MAX_RESOLUTION));\n };\n\n /**\n * Return the minimum resolution of the layer.\n * @return {number} The minimum resolution of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.getMinResolution = function getMinResolution () {\n return /** @type {number} */ (this.get(LayerProperty.MIN_RESOLUTION));\n };\n\n /**\n * Return the opacity of the layer (between 0 and 1).\n * @return {number} The opacity of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.getOpacity = function getOpacity () {\n return /** @type {number} */ (this.get(LayerProperty.OPACITY));\n };\n\n /**\n * @abstract\n * @return {import(\"../source/State.js\").default} Source state.\n */\n BaseLayer.prototype.getSourceState = function getSourceState () {\n return abstract();\n };\n\n /**\n * Return the visibility of the layer (`true` or `false`).\n * @return {boolean} The visibility of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.getVisible = function getVisible () {\n return /** @type {boolean} */ (this.get(LayerProperty.VISIBLE));\n };\n\n /**\n * Return the Z-index of the layer, which is used to order layers before\n * rendering. The default Z-index is 0.\n * @return {number} The Z-index of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.getZIndex = function getZIndex () {\n return /** @type {number} */ (this.get(LayerProperty.Z_INDEX));\n };\n\n /**\n * Set the extent at which the layer is visible. If `undefined`, the layer\n * will be visible at all extents.\n * @param {import(\"../extent.js\").Extent|undefined} extent The extent of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.setExtent = function setExtent (extent) {\n this.set(LayerProperty.EXTENT, extent);\n };\n\n /**\n * Set the maximum resolution at which the layer is visible.\n * @param {number} maxResolution The maximum resolution of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.setMaxResolution = function setMaxResolution (maxResolution) {\n this.set(LayerProperty.MAX_RESOLUTION, maxResolution);\n };\n\n /**\n * Set the minimum resolution at which the layer is visible.\n * @param {number} minResolution The minimum resolution of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.setMinResolution = function setMinResolution (minResolution) {\n this.set(LayerProperty.MIN_RESOLUTION, minResolution);\n };\n\n /**\n * Set the opacity of the layer, allowed values range from 0 to 1.\n * @param {number} opacity The opacity of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.setOpacity = function setOpacity (opacity) {\n this.set(LayerProperty.OPACITY, opacity);\n };\n\n /**\n * Set the visibility of the layer (`true` or `false`).\n * @param {boolean} visible The visibility of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.setVisible = function setVisible (visible) {\n this.set(LayerProperty.VISIBLE, visible);\n };\n\n /**\n * Set Z-index of the layer, which is used to order layers before rendering.\n * The default Z-index is 0.\n * @param {number} zindex The z-index of the layer.\n * @observable\n * @api\n */\n BaseLayer.prototype.setZIndex = function setZIndex (zindex) {\n this.set(LayerProperty.Z_INDEX, zindex);\n };\n\n return BaseLayer;\n}(BaseObject));\n\n\nexport default BaseLayer;\n\n//# sourceMappingURL=Base.js.map","/**\n * @module ol/source/State\n */\n\n/**\n * @enum {string}\n * State of the source, one of 'undefined', 'loading', 'ready' or 'error'.\n */\nexport default {\n UNDEFINED: 'undefined',\n LOADING: 'loading',\n READY: 'ready',\n ERROR: 'error'\n};\n\n//# sourceMappingURL=State.js.map","/**\n * @module ol/layer/Group\n */\nimport {getUid} from '../util.js';\nimport Collection from '../Collection.js';\nimport CollectionEventType from '../CollectionEventType.js';\nimport {getChangeEventType} from '../Object.js';\nimport ObjectEventType from '../ObjectEventType.js';\nimport {assert} from '../asserts.js';\nimport {listen, unlistenByKey} from '../events.js';\nimport EventType from '../events/EventType.js';\nimport {getIntersection} from '../extent.js';\nimport BaseLayer from './Base.js';\nimport {assign, clear} from '../obj.js';\nimport SourceState from '../source/State.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {Array|import(\"../Collection.js\").default} [layers] Child layers.\n */\n\n\n/**\n * @enum {string}\n * @private\n */\nvar Property = {\n LAYERS: 'layers'\n};\n\n\n/**\n * @classdesc\n * A {@link module:ol/Collection~Collection} of layers that are handled together.\n *\n * A generic `change` event is triggered when the group/Collection changes.\n *\n * @api\n */\nvar LayerGroup = /*@__PURE__*/(function (BaseLayer) {\n function LayerGroup(opt_options) {\n\n var options = opt_options || {};\n var baseOptions = /** @type {Options} */ (assign({}, options));\n delete baseOptions.layers;\n\n var layers = options.layers;\n\n BaseLayer.call(this, baseOptions);\n\n /**\n * @private\n * @type {Array}\n */\n this.layersListenerKeys_ = [];\n\n /**\n * @private\n * @type {Object>}\n */\n this.listenerKeys_ = {};\n\n listen(this,\n getChangeEventType(Property.LAYERS),\n this.handleLayersChanged_, this);\n\n if (layers) {\n if (Array.isArray(layers)) {\n layers = new Collection(layers.slice(), {unique: true});\n } else {\n assert(typeof /** @type {?} */ (layers).getArray === 'function',\n 43); // Expected `layers` to be an array or a `Collection`\n }\n } else {\n layers = new Collection(undefined, {unique: true});\n }\n\n this.setLayers(layers);\n\n }\n\n if ( BaseLayer ) LayerGroup.__proto__ = BaseLayer;\n LayerGroup.prototype = Object.create( BaseLayer && BaseLayer.prototype );\n LayerGroup.prototype.constructor = LayerGroup;\n\n /**\n * @private\n */\n LayerGroup.prototype.handleLayerChange_ = function handleLayerChange_ () {\n this.changed();\n };\n\n /**\n * @private\n */\n LayerGroup.prototype.handleLayersChanged_ = function handleLayersChanged_ () {\n this.layersListenerKeys_.forEach(unlistenByKey);\n this.layersListenerKeys_.length = 0;\n\n var layers = this.getLayers();\n this.layersListenerKeys_.push(\n listen(layers, CollectionEventType.ADD, this.handleLayersAdd_, this),\n listen(layers, CollectionEventType.REMOVE, this.handleLayersRemove_, this)\n );\n\n for (var id in this.listenerKeys_) {\n this.listenerKeys_[id].forEach(unlistenByKey);\n }\n clear(this.listenerKeys_);\n\n var layersArray = layers.getArray();\n for (var i = 0, ii = layersArray.length; i < ii; i++) {\n var layer = layersArray[i];\n this.listenerKeys_[getUid(layer)] = [\n listen(layer, ObjectEventType.PROPERTYCHANGE, this.handleLayerChange_, this),\n listen(layer, EventType.CHANGE, this.handleLayerChange_, this)\n ];\n }\n\n this.changed();\n };\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} collectionEvent CollectionEvent.\n * @private\n */\n LayerGroup.prototype.handleLayersAdd_ = function handleLayersAdd_ (collectionEvent) {\n var layer = /** @type {import(\"./Base.js\").default} */ (collectionEvent.element);\n this.listenerKeys_[getUid(layer)] = [\n listen(layer, ObjectEventType.PROPERTYCHANGE, this.handleLayerChange_, this),\n listen(layer, EventType.CHANGE, this.handleLayerChange_, this)\n ];\n this.changed();\n };\n\n /**\n * @param {import(\"../Collection.js\").CollectionEvent} collectionEvent CollectionEvent.\n * @private\n */\n LayerGroup.prototype.handleLayersRemove_ = function handleLayersRemove_ (collectionEvent) {\n var layer = /** @type {import(\"./Base.js\").default} */ (collectionEvent.element);\n var key = getUid(layer);\n this.listenerKeys_[key].forEach(unlistenByKey);\n delete this.listenerKeys_[key];\n this.changed();\n };\n\n /**\n * Returns the {@link module:ol/Collection collection} of {@link module:ol/layer/Layer~Layer layers}\n * in this group.\n * @return {!import(\"../Collection.js\").default} Collection of\n * {@link module:ol/layer/Base layers} that are part of this group.\n * @observable\n * @api\n */\n LayerGroup.prototype.getLayers = function getLayers () {\n return (\n /** @type {!import(\"../Collection.js\").default} */ (this.get(Property.LAYERS))\n );\n };\n\n /**\n * Set the {@link module:ol/Collection collection} of {@link module:ol/layer/Layer~Layer layers}\n * in this group.\n * @param {!import(\"../Collection.js\").default} layers Collection of\n * {@link module:ol/layer/Base layers} that are part of this group.\n * @observable\n * @api\n */\n LayerGroup.prototype.setLayers = function setLayers (layers) {\n this.set(Property.LAYERS, layers);\n };\n\n /**\n * @inheritDoc\n */\n LayerGroup.prototype.getLayersArray = function getLayersArray (opt_array) {\n var array = opt_array !== undefined ? opt_array : [];\n this.getLayers().forEach(function(layer) {\n layer.getLayersArray(array);\n });\n return array;\n };\n\n /**\n * @inheritDoc\n */\n LayerGroup.prototype.getLayerStatesArray = function getLayerStatesArray (opt_states) {\n var states = opt_states !== undefined ? opt_states : [];\n\n var pos = states.length;\n\n this.getLayers().forEach(function(layer) {\n layer.getLayerStatesArray(states);\n });\n\n var ownLayerState = this.getLayerState();\n for (var i = pos, ii = states.length; i < ii; i++) {\n var layerState = states[i];\n layerState.opacity *= ownLayerState.opacity;\n layerState.visible = layerState.visible && ownLayerState.visible;\n layerState.maxResolution = Math.min(\n layerState.maxResolution, ownLayerState.maxResolution);\n layerState.minResolution = Math.max(\n layerState.minResolution, ownLayerState.minResolution);\n if (ownLayerState.extent !== undefined) {\n if (layerState.extent !== undefined) {\n layerState.extent = getIntersection(layerState.extent, ownLayerState.extent);\n } else {\n layerState.extent = ownLayerState.extent;\n }\n }\n }\n\n return states;\n };\n\n /**\n * @inheritDoc\n */\n LayerGroup.prototype.getSourceState = function getSourceState () {\n return SourceState.READY;\n };\n\n return LayerGroup;\n}(BaseLayer));\n\n\nexport default LayerGroup;\n\n//# sourceMappingURL=Group.js.map","/**\n * @module ol/size\n */\n\n\n/**\n * An array of numbers representing a size: `[width, height]`.\n * @typedef {Array} Size\n * @api\n */\n\n\n/**\n * Returns a buffered size.\n * @param {Size} size Size.\n * @param {number} num The amount by which to buffer.\n * @param {Size=} opt_size Optional reusable size array.\n * @return {Size} The buffered size.\n */\nexport function buffer(size, num, opt_size) {\n if (opt_size === undefined) {\n opt_size = [0, 0];\n }\n opt_size[0] = size[0] + 2 * num;\n opt_size[1] = size[1] + 2 * num;\n return opt_size;\n}\n\n\n/**\n * Determines if a size has a positive area.\n * @param {Size} size The size to test.\n * @return {boolean} The size has a positive area.\n */\nexport function hasArea(size) {\n return size[0] > 0 && size[1] > 0;\n}\n\n\n/**\n * Returns a size scaled by a ratio. The result will be an array of integers.\n * @param {Size} size Size.\n * @param {number} ratio Ratio.\n * @param {Size=} opt_size Optional reusable size array.\n * @return {Size} The scaled size.\n */\nexport function scale(size, ratio, opt_size) {\n if (opt_size === undefined) {\n opt_size = [0, 0];\n }\n opt_size[0] = (size[0] * ratio + 0.5) | 0;\n opt_size[1] = (size[1] * ratio + 0.5) | 0;\n return opt_size;\n}\n\n\n/**\n * Returns an `Size` array for the passed in number (meaning: square) or\n * `Size` array.\n * (meaning: non-square),\n * @param {number|Size} size Width and height.\n * @param {Size=} opt_size Optional reusable size array.\n * @return {Size} Size.\n * @api\n */\nexport function toSize(size, opt_size) {\n if (Array.isArray(size)) {\n return size;\n } else {\n if (opt_size === undefined) {\n opt_size = [size, size];\n } else {\n opt_size[0] = opt_size[1] = /** @type {number} */ (size);\n }\n return opt_size;\n }\n}\n\n//# sourceMappingURL=size.js.map","/**\n * @module ol/PluggableMap\n */\nimport {getUid} from './util.js';\nimport Collection from './Collection.js';\nimport CollectionEventType from './CollectionEventType.js';\nimport MapBrowserEvent from './MapBrowserEvent.js';\nimport MapBrowserEventHandler from './MapBrowserEventHandler.js';\nimport MapBrowserEventType from './MapBrowserEventType.js';\nimport MapEvent from './MapEvent.js';\nimport MapEventType from './MapEventType.js';\nimport MapProperty from './MapProperty.js';\nimport RenderEventType from './render/EventType.js';\nimport BaseObject, {getChangeEventType} from './Object.js';\nimport ObjectEventType from './ObjectEventType.js';\nimport TileQueue from './TileQueue.js';\nimport View from './View.js';\nimport ViewHint from './ViewHint.js';\nimport {assert} from './asserts.js';\nimport {removeNode} from './dom.js';\nimport {listen, unlistenByKey, unlisten} from './events.js';\nimport {stopPropagation} from './events/Event.js';\nimport EventType from './events/EventType.js';\nimport {createEmpty, clone, createOrUpdateEmpty, equals, getForViewAndSize, isEmpty} from './extent.js';\nimport {TRUE} from './functions.js';\nimport {DEVICE_PIXEL_RATIO, TOUCH} from './has.js';\nimport LayerGroup from './layer/Group.js';\nimport {hasArea} from './size.js';\nimport {DROP} from './structs/PriorityQueue.js';\nimport {create as createTransform, apply as applyTransform} from './transform.js';\n\n\n/**\n * State of the current frame. Only `pixelRatio`, `time` and `viewState` should\n * be used in applications.\n * @typedef {Object} FrameState\n * @property {number} pixelRatio The pixel ratio of the frame.\n * @property {number} time The time when rendering of the frame was requested.\n * @property {import(\"./View.js\").State} viewState The state of the current view.\n * @property {boolean} animate\n * @property {import(\"./transform.js\").Transform} coordinateToPixelTransform\n * @property {null|import(\"./extent.js\").Extent} extent\n * @property {import(\"./coordinate.js\").Coordinate} focus\n * @property {number} index\n * @property {Object} layerStates\n * @property {Array} layerStatesArray\n * @property {import(\"./transform.js\").Transform} pixelToCoordinateTransform\n * @property {Array} postRenderFunctions\n * @property {import(\"./size.js\").Size} size\n * @property {!Object} skippedFeatureUids\n * @property {TileQueue} tileQueue\n * @property {Object>} usedTiles\n * @property {Array} viewHints\n * @property {!Object>} wantedTiles\n */\n\n\n/**\n * @typedef {function(PluggableMap, ?FrameState): boolean} PostRenderFunction\n */\n\n\n/**\n * @typedef {Object} AtPixelOptions\n * @property {undefined|function(import(\"./layer/Layer.js\").default): boolean} layerFilter Layer filter\n * function. The filter function will receive one argument, the\n * {@link module:ol/layer/Layer layer-candidate} and it should return a boolean value.\n * Only layers which are visible and for which this function returns `true`\n * will be tested for features. By default, all visible layers will be tested.\n * @property {number} [hitTolerance=0] Hit-detection tolerance in pixels. Pixels\n * inside the radius around the given position will be checked for features. This only\n * works for the canvas renderer and not for WebGL.\n */\n\n\n/**\n * @typedef {Object} MapOptionsInternal\n * @property {Collection} [controls]\n * @property {Collection} [interactions]\n * @property {HTMLElement|Document} keyboardEventTarget\n * @property {Collection} overlays\n * @property {Object} values\n */\n\n\n/**\n * Object literal with config options for the map.\n * @typedef {Object} MapOptions\n * @property {Collection|Array} [controls]\n * Controls initially added to the map. If not specified,\n * {@link module:ol/control~defaults} is used.\n * @property {number} [pixelRatio=window.devicePixelRatio] The ratio between\n * physical pixels and device-independent pixels (dips) on the device.\n * @property {Collection|Array} [interactions]\n * Interactions that are initially added to the map. If not specified,\n * {@link module:ol/interaction~defaults} is used.\n * @property {HTMLElement|Document|string} [keyboardEventTarget] The element to\n * listen to keyboard events on. This determines when the `KeyboardPan` and\n * `KeyboardZoom` interactions trigger. For example, if this option is set to\n * `document` the keyboard interactions will always trigger. If this option is\n * not specified, the element the library listens to keyboard events on is the\n * map target (i.e. the user-provided div for the map). If this is not\n * `document`, the target element needs to be focused for key events to be\n * emitted, requiring that the target element has a `tabindex` attribute.\n * @property {Array|Collection|LayerGroup} [layers]\n * Layers. If this is not defined, a map with no layers will be rendered. Note\n * that layers are rendered in the order supplied, so if you want, for example,\n * a vector layer to appear on top of a tile layer, it must come after the tile\n * layer.\n * @property {number} [maxTilesLoading=16] Maximum number tiles to load\n * simultaneously.\n * @property {boolean} [loadTilesWhileAnimating=false] When set to `true`, tiles\n * will be loaded during animations. This may improve the user experience, but\n * can also make animations stutter on devices with slow memory.\n * @property {boolean} [loadTilesWhileInteracting=false] When set to `true`,\n * tiles will be loaded while interacting with the map. This may improve the\n * user experience, but can also make map panning and zooming choppy on devices\n * with slow memory.\n * @property {number} [moveTolerance=1] The minimum distance in pixels the\n * cursor must move to be detected as a map move event instead of a click.\n * Increasing this value can make it easier to click on the map.\n * @property {Collection|Array} [overlays]\n * Overlays initially added to the map. By default, no overlays are added.\n * @property {HTMLElement|string} [target] The container for the map, either the\n * element itself or the `id` of the element. If not specified at construction\n * time, {@link module:ol/Map~Map#setTarget} must be called for the map to be\n * rendered.\n * @property {View} [view] The map's view. No layer sources will be\n * fetched unless this is specified at construction time or through\n * {@link module:ol/Map~Map#setView}.\n */\n\n\n/**\n * @fires import(\"./MapBrowserEvent.js\").MapBrowserEvent\n * @fires import(\"./MapEvent.js\").MapEvent\n * @fires module:ol/render/Event~RenderEvent#postcompose\n * @fires module:ol/render/Event~RenderEvent#precompose\n * @fires module:ol/render/Event~RenderEvent#rendercomplete\n * @api\n */\nvar PluggableMap = /*@__PURE__*/(function (BaseObject) {\n function PluggableMap(options) {\n\n BaseObject.call(this);\n\n var optionsInternal = createOptionsInternal(options);\n\n /**\n * @type {number}\n * @private\n */\n this.maxTilesLoading_ = options.maxTilesLoading !== undefined ? options.maxTilesLoading : 16;\n\n /**\n * @type {boolean}\n * @private\n */\n this.loadTilesWhileAnimating_ =\n options.loadTilesWhileAnimating !== undefined ?\n options.loadTilesWhileAnimating : false;\n\n /**\n * @type {boolean}\n * @private\n */\n this.loadTilesWhileInteracting_ =\n options.loadTilesWhileInteracting !== undefined ?\n options.loadTilesWhileInteracting : false;\n\n /**\n * @private\n * @type {number}\n */\n this.pixelRatio_ = options.pixelRatio !== undefined ?\n options.pixelRatio : DEVICE_PIXEL_RATIO;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.animationDelayKey_;\n\n /**\n * @private\n */\n this.animationDelay_ = function() {\n this.animationDelayKey_ = undefined;\n this.renderFrame_.call(this, Date.now());\n }.bind(this);\n\n /**\n * @private\n * @type {import(\"./transform.js\").Transform}\n */\n this.coordinateToPixelTransform_ = createTransform();\n\n /**\n * @private\n * @type {import(\"./transform.js\").Transform}\n */\n this.pixelToCoordinateTransform_ = createTransform();\n\n /**\n * @private\n * @type {number}\n */\n this.frameIndex_ = 0;\n\n /**\n * @private\n * @type {?FrameState}\n */\n this.frameState_ = null;\n\n /**\n * The extent at the previous 'moveend' event.\n * @private\n * @type {import(\"./extent.js\").Extent}\n */\n this.previousExtent_ = null;\n\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.viewPropertyListenerKey_ = null;\n\n /**\n * @private\n * @type {?import(\"./events.js\").EventsKey}\n */\n this.viewChangeListenerKey_ = null;\n\n /**\n * @private\n * @type {Array}\n */\n this.layerGroupPropertyListenerKeys_ = null;\n\n /**\n * @private\n * @type {!HTMLElement}\n */\n this.viewport_ = document.createElement('div');\n this.viewport_.className = 'ol-viewport' + (TOUCH ? ' ol-touch' : '');\n this.viewport_.style.position = 'relative';\n this.viewport_.style.overflow = 'hidden';\n this.viewport_.style.width = '100%';\n this.viewport_.style.height = '100%';\n // prevent page zoom on IE >= 10 browsers\n this.viewport_.style.msTouchAction = 'none';\n this.viewport_.style.touchAction = 'none';\n\n /**\n * @private\n * @type {!HTMLElement}\n */\n this.overlayContainer_ = document.createElement('div');\n this.overlayContainer_.className = 'ol-overlaycontainer';\n this.viewport_.appendChild(this.overlayContainer_);\n\n /**\n * @private\n * @type {!HTMLElement}\n */\n this.overlayContainerStopEvent_ = document.createElement('div');\n this.overlayContainerStopEvent_.className = 'ol-overlaycontainer-stopevent';\n var overlayEvents = [\n EventType.CLICK,\n EventType.DBLCLICK,\n EventType.MOUSEDOWN,\n EventType.TOUCHSTART,\n EventType.MSPOINTERDOWN,\n MapBrowserEventType.POINTERDOWN,\n EventType.MOUSEWHEEL,\n EventType.WHEEL\n ];\n for (var i = 0, ii = overlayEvents.length; i < ii; ++i) {\n listen(this.overlayContainerStopEvent_, overlayEvents[i], stopPropagation);\n }\n this.viewport_.appendChild(this.overlayContainerStopEvent_);\n\n /**\n * @private\n * @type {MapBrowserEventHandler}\n */\n this.mapBrowserEventHandler_ = new MapBrowserEventHandler(this, options.moveTolerance);\n for (var key in MapBrowserEventType) {\n listen(this.mapBrowserEventHandler_, MapBrowserEventType[key],\n this.handleMapBrowserEvent, this);\n }\n\n /**\n * @private\n * @type {HTMLElement|Document}\n */\n this.keyboardEventTarget_ = optionsInternal.keyboardEventTarget;\n\n /**\n * @private\n * @type {Array}\n */\n this.keyHandlerKeys_ = null;\n\n listen(this.viewport_, EventType.CONTEXTMENU, this.handleBrowserEvent, this);\n listen(this.viewport_, EventType.WHEEL, this.handleBrowserEvent, this);\n listen(this.viewport_, EventType.MOUSEWHEEL, this.handleBrowserEvent, this);\n\n /**\n * @type {Collection}\n * @protected\n */\n this.controls = optionsInternal.controls || new Collection();\n\n /**\n * @type {Collection}\n * @protected\n */\n this.interactions = optionsInternal.interactions || new Collection();\n\n /**\n * @type {Collection}\n * @private\n */\n this.overlays_ = optionsInternal.overlays;\n\n /**\n * A lookup of overlays by id.\n * @private\n * @type {Object}\n */\n this.overlayIdIndex_ = {};\n\n /**\n * @type {import(\"./renderer/Map.js\").default}\n * @private\n */\n this.renderer_ = this.createRenderer();\n\n /**\n * @type {function(Event)|undefined}\n * @private\n */\n this.handleResize_;\n\n /**\n * @private\n * @type {import(\"./coordinate.js\").Coordinate}\n */\n this.focus_ = null;\n\n /**\n * @private\n * @type {!Array}\n */\n this.postRenderFunctions_ = [];\n\n /**\n * @private\n * @type {TileQueue}\n */\n this.tileQueue_ = new TileQueue(\n this.getTilePriority.bind(this),\n this.handleTileChange_.bind(this));\n\n /**\n * Uids of features to skip at rendering time.\n * @type {Object}\n * @private\n */\n this.skippedFeatureUids_ = {};\n\n listen(\n this, getChangeEventType(MapProperty.LAYERGROUP),\n this.handleLayerGroupChanged_, this);\n listen(this, getChangeEventType(MapProperty.VIEW),\n this.handleViewChanged_, this);\n listen(this, getChangeEventType(MapProperty.SIZE),\n this.handleSizeChanged_, this);\n listen(this, getChangeEventType(MapProperty.TARGET),\n this.handleTargetChanged_, this);\n\n // setProperties will trigger the rendering of the map if the map\n // is \"defined\" already.\n this.setProperties(optionsInternal.values);\n\n this.controls.forEach(\n /**\n * @param {import(\"./control/Control.js\").default} control Control.\n * @this {PluggableMap}\n */\n (function(control) {\n control.setMap(this);\n }).bind(this));\n\n listen(this.controls, CollectionEventType.ADD,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function(event) {\n event.element.setMap(this);\n }, this);\n\n listen(this.controls, CollectionEventType.REMOVE,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function(event) {\n event.element.setMap(null);\n }, this);\n\n this.interactions.forEach(\n /**\n * @param {import(\"./interaction/Interaction.js\").default} interaction Interaction.\n * @this {PluggableMap}\n */\n (function(interaction) {\n interaction.setMap(this);\n }).bind(this));\n\n listen(this.interactions, CollectionEventType.ADD,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function(event) {\n event.element.setMap(this);\n }, this);\n\n listen(this.interactions, CollectionEventType.REMOVE,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function(event) {\n event.element.setMap(null);\n }, this);\n\n this.overlays_.forEach(this.addOverlayInternal_.bind(this));\n\n listen(this.overlays_, CollectionEventType.ADD,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function(event) {\n this.addOverlayInternal_(/** @type {import(\"./Overlay.js\").default} */ (event.element));\n }, this);\n\n listen(this.overlays_, CollectionEventType.REMOVE,\n /**\n * @param {import(\"./Collection.js\").CollectionEvent} event CollectionEvent.\n */\n function(event) {\n var overlay = /** @type {import(\"./Overlay.js\").default} */ (event.element);\n var id = overlay.getId();\n if (id !== undefined) {\n delete this.overlayIdIndex_[id.toString()];\n }\n event.element.setMap(null);\n }, this);\n\n }\n\n if ( BaseObject ) PluggableMap.__proto__ = BaseObject;\n PluggableMap.prototype = Object.create( BaseObject && BaseObject.prototype );\n PluggableMap.prototype.constructor = PluggableMap;\n\n /**\n * @abstract\n * @return {import(\"./renderer/Map.js\").default} The map renderer\n */\n PluggableMap.prototype.createRenderer = function createRenderer () {\n throw new Error('Use a map type that has a createRenderer method');\n };\n\n /**\n * Add the given control to the map.\n * @param {import(\"./control/Control.js\").default} control Control.\n * @api\n */\n PluggableMap.prototype.addControl = function addControl (control) {\n this.getControls().push(control);\n };\n\n /**\n * Add the given interaction to the map.\n * @param {import(\"./interaction/Interaction.js\").default} interaction Interaction to add.\n * @api\n */\n PluggableMap.prototype.addInteraction = function addInteraction (interaction) {\n this.getInteractions().push(interaction);\n };\n\n /**\n * Adds the given layer to the top of this map. If you want to add a layer\n * elsewhere in the stack, use `getLayers()` and the methods available on\n * {@link module:ol/Collection~Collection}.\n * @param {import(\"./layer/Base.js\").default} layer Layer.\n * @api\n */\n PluggableMap.prototype.addLayer = function addLayer (layer) {\n var layers = this.getLayerGroup().getLayers();\n layers.push(layer);\n };\n\n /**\n * Add the given overlay to the map.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @api\n */\n PluggableMap.prototype.addOverlay = function addOverlay (overlay) {\n this.getOverlays().push(overlay);\n };\n\n /**\n * This deals with map's overlay collection changes.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @private\n */\n PluggableMap.prototype.addOverlayInternal_ = function addOverlayInternal_ (overlay) {\n var id = overlay.getId();\n if (id !== undefined) {\n this.overlayIdIndex_[id.toString()] = overlay;\n }\n overlay.setMap(this);\n };\n\n /**\n *\n * @inheritDoc\n */\n PluggableMap.prototype.disposeInternal = function disposeInternal () {\n this.mapBrowserEventHandler_.dispose();\n unlisten(this.viewport_, EventType.CONTEXTMENU, this.handleBrowserEvent, this);\n unlisten(this.viewport_, EventType.WHEEL, this.handleBrowserEvent, this);\n unlisten(this.viewport_, EventType.MOUSEWHEEL, this.handleBrowserEvent, this);\n if (this.handleResize_ !== undefined) {\n removeEventListener(EventType.RESIZE, this.handleResize_, false);\n this.handleResize_ = undefined;\n }\n if (this.animationDelayKey_) {\n cancelAnimationFrame(this.animationDelayKey_);\n this.animationDelayKey_ = undefined;\n }\n this.setTarget(null);\n BaseObject.prototype.disposeInternal.call(this);\n };\n\n /**\n * Detect features that intersect a pixel on the viewport, and execute a\n * callback with each intersecting feature. Layers included in the detection can\n * be configured through the `layerFilter` option in `opt_options`.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {function(this: S, import(\"./Feature.js\").FeatureLike,\n * import(\"./layer/Layer.js\").default): T} callback Feature callback. The callback will be\n * called with two arguments. The first argument is one\n * {@link module:ol/Feature feature} or\n * {@link module:ol/render/Feature render feature} at the pixel, the second is\n * the {@link module:ol/layer/Layer layer} of the feature and will be null for\n * unmanaged layers. To stop detection, callback functions can return a\n * truthy value.\n * @param {AtPixelOptions=} opt_options Optional options.\n * @return {T|undefined} Callback result, i.e. the return value of last\n * callback execution, or the first truthy callback return value.\n * @template S,T\n * @api\n */\n PluggableMap.prototype.forEachFeatureAtPixel = function forEachFeatureAtPixel (pixel, callback, opt_options) {\n if (!this.frameState_) {\n return;\n }\n var coordinate = this.getCoordinateFromPixel(pixel);\n opt_options = opt_options !== undefined ? opt_options :\n /** @type {AtPixelOptions} */ ({});\n var hitTolerance = opt_options.hitTolerance !== undefined ?\n opt_options.hitTolerance * this.frameState_.pixelRatio : 0;\n var layerFilter = opt_options.layerFilter !== undefined ?\n opt_options.layerFilter : TRUE;\n return this.renderer_.forEachFeatureAtCoordinate(\n coordinate, this.frameState_, hitTolerance, callback, null,\n layerFilter, null);\n };\n\n /**\n * Get all features that intersect a pixel on the viewport.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {AtPixelOptions=} opt_options Optional options.\n * @return {Array} The detected features or\n * `null` if none were found.\n * @api\n */\n PluggableMap.prototype.getFeaturesAtPixel = function getFeaturesAtPixel (pixel, opt_options) {\n var features = null;\n this.forEachFeatureAtPixel(pixel, function(feature) {\n if (!features) {\n features = [];\n }\n features.push(feature);\n }, opt_options);\n return features;\n };\n\n /**\n * Detect layers that have a color value at a pixel on the viewport, and\n * execute a callback with each matching layer. Layers included in the\n * detection can be configured through `opt_layerFilter`.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {function(this: S, import(\"./layer/Layer.js\").default, (Uint8ClampedArray|Uint8Array)): T} callback\n * Layer callback. This callback will receive two arguments: first is the\n * {@link module:ol/layer/Layer layer}, second argument is an array representing\n * [R, G, B, A] pixel values (0 - 255) and will be `null` for layer types\n * that do not currently support this argument. To stop detection, callback\n * functions can return a truthy value.\n * @param {AtPixelOptions=} opt_options Configuration options.\n * @return {T|undefined} Callback result, i.e. the return value of last\n * callback execution, or the first truthy callback return value.\n * @template S,T\n * @api\n */\n PluggableMap.prototype.forEachLayerAtPixel = function forEachLayerAtPixel (pixel, callback, opt_options) {\n if (!this.frameState_) {\n return;\n }\n var options = opt_options || /** @type {AtPixelOptions} */ ({});\n var hitTolerance = options.hitTolerance !== undefined ?\n opt_options.hitTolerance * this.frameState_.pixelRatio : 0;\n var layerFilter = options.layerFilter || TRUE;\n return this.renderer_.forEachLayerAtPixel(\n pixel, this.frameState_, hitTolerance, callback, null, layerFilter, null);\n };\n\n /**\n * Detect if features intersect a pixel on the viewport. Layers included in the\n * detection can be configured through `opt_layerFilter`.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel.\n * @param {AtPixelOptions=} opt_options Optional options.\n * @return {boolean} Is there a feature at the given pixel?\n * @template U\n * @api\n */\n PluggableMap.prototype.hasFeatureAtPixel = function hasFeatureAtPixel (pixel, opt_options) {\n if (!this.frameState_) {\n return false;\n }\n var coordinate = this.getCoordinateFromPixel(pixel);\n opt_options = opt_options !== undefined ? opt_options :\n /** @type {AtPixelOptions} */ ({});\n var layerFilter = opt_options.layerFilter !== undefined ? opt_options.layerFilter : TRUE;\n var hitTolerance = opt_options.hitTolerance !== undefined ?\n opt_options.hitTolerance * this.frameState_.pixelRatio : 0;\n return this.renderer_.hasFeatureAtCoordinate(\n coordinate, this.frameState_, hitTolerance, layerFilter, null);\n };\n\n /**\n * Returns the coordinate in view projection for a browser event.\n * @param {Event} event Event.\n * @return {import(\"./coordinate.js\").Coordinate} Coordinate.\n * @api\n */\n PluggableMap.prototype.getEventCoordinate = function getEventCoordinate (event) {\n return this.getCoordinateFromPixel(this.getEventPixel(event));\n };\n\n /**\n * Returns the map pixel position for a browser event relative to the viewport.\n * @param {Event|TouchEvent} event Event.\n * @return {import(\"./pixel.js\").Pixel} Pixel.\n * @api\n */\n PluggableMap.prototype.getEventPixel = function getEventPixel (event) {\n var viewportPosition = this.viewport_.getBoundingClientRect();\n var eventPosition = 'changedTouches' in event ?\n /** @type {TouchEvent} */ (event).changedTouches[0] :\n /** @type {MouseEvent} */ (event);\n\n return [\n eventPosition.clientX - viewportPosition.left,\n eventPosition.clientY - viewportPosition.top\n ];\n };\n\n /**\n * Get the target in which this map is rendered.\n * Note that this returns what is entered as an option or in setTarget:\n * if that was an element, it returns an element; if a string, it returns that.\n * @return {HTMLElement|string|undefined} The Element or id of the Element that the\n * map is rendered in.\n * @observable\n * @api\n */\n PluggableMap.prototype.getTarget = function getTarget () {\n return /** @type {HTMLElement|string|undefined} */ (this.get(MapProperty.TARGET));\n };\n\n /**\n * Get the DOM element into which this map is rendered. In contrast to\n * `getTarget` this method always return an `Element`, or `null` if the\n * map has no target.\n * @return {HTMLElement} The element that the map is rendered in.\n * @api\n */\n PluggableMap.prototype.getTargetElement = function getTargetElement () {\n var target = this.getTarget();\n if (target !== undefined) {\n return typeof target === 'string' ? document.getElementById(target) : target;\n } else {\n return null;\n }\n };\n\n /**\n * Get the coordinate for a given pixel. This returns a coordinate in the\n * map view projection.\n * @param {import(\"./pixel.js\").Pixel} pixel Pixel position in the map viewport.\n * @return {import(\"./coordinate.js\").Coordinate} The coordinate for the pixel position.\n * @api\n */\n PluggableMap.prototype.getCoordinateFromPixel = function getCoordinateFromPixel (pixel) {\n var frameState = this.frameState_;\n if (!frameState) {\n return null;\n } else {\n return applyTransform(frameState.pixelToCoordinateTransform, pixel.slice());\n }\n };\n\n /**\n * Get the map controls. Modifying this collection changes the controls\n * associated with the map.\n * @return {Collection} Controls.\n * @api\n */\n PluggableMap.prototype.getControls = function getControls () {\n return this.controls;\n };\n\n /**\n * Get the map overlays. Modifying this collection changes the overlays\n * associated with the map.\n * @return {Collection} Overlays.\n * @api\n */\n PluggableMap.prototype.getOverlays = function getOverlays () {\n return this.overlays_;\n };\n\n /**\n * Get an overlay by its identifier (the value returned by overlay.getId()).\n * Note that the index treats string and numeric identifiers as the same. So\n * `map.getOverlayById(2)` will return an overlay with id `'2'` or `2`.\n * @param {string|number} id Overlay identifier.\n * @return {import(\"./Overlay.js\").default} Overlay.\n * @api\n */\n PluggableMap.prototype.getOverlayById = function getOverlayById (id) {\n var overlay = this.overlayIdIndex_[id.toString()];\n return overlay !== undefined ? overlay : null;\n };\n\n /**\n * Get the map interactions. Modifying this collection changes the interactions\n * associated with the map.\n *\n * Interactions are used for e.g. pan, zoom and rotate.\n * @return {Collection} Interactions.\n * @api\n */\n PluggableMap.prototype.getInteractions = function getInteractions () {\n return this.interactions;\n };\n\n /**\n * Get the layergroup associated with this map.\n * @return {LayerGroup} A layer group containing the layers in this map.\n * @observable\n * @api\n */\n PluggableMap.prototype.getLayerGroup = function getLayerGroup () {\n return (\n /** @type {LayerGroup} */ (this.get(MapProperty.LAYERGROUP))\n );\n };\n\n /**\n * Get the collection of layers associated with this map.\n * @return {!Collection} Layers.\n * @api\n */\n PluggableMap.prototype.getLayers = function getLayers () {\n var layers = this.getLayerGroup().getLayers();\n return layers;\n };\n\n /**\n * Get the pixel for a coordinate. This takes a coordinate in the map view\n * projection and returns the corresponding pixel.\n * @param {import(\"./coordinate.js\").Coordinate} coordinate A map coordinate.\n * @return {import(\"./pixel.js\").Pixel} A pixel position in the map viewport.\n * @api\n */\n PluggableMap.prototype.getPixelFromCoordinate = function getPixelFromCoordinate (coordinate) {\n var frameState = this.frameState_;\n if (!frameState) {\n return null;\n } else {\n return applyTransform(frameState.coordinateToPixelTransform, coordinate.slice(0, 2));\n }\n };\n\n /**\n * Get the map renderer.\n * @return {import(\"./renderer/Map.js\").default} Renderer\n */\n PluggableMap.prototype.getRenderer = function getRenderer () {\n return this.renderer_;\n };\n\n /**\n * Get the size of this map.\n * @return {import(\"./size.js\").Size|undefined} The size in pixels of the map in the DOM.\n * @observable\n * @api\n */\n PluggableMap.prototype.getSize = function getSize () {\n return (\n /** @type {import(\"./size.js\").Size|undefined} */ (this.get(MapProperty.SIZE))\n );\n };\n\n /**\n * Get the view associated with this map. A view manages properties such as\n * center and resolution.\n * @return {View} The view that controls this map.\n * @observable\n * @api\n */\n PluggableMap.prototype.getView = function getView () {\n return (\n /** @type {View} */ (this.get(MapProperty.VIEW))\n );\n };\n\n /**\n * Get the element that serves as the map viewport.\n * @return {HTMLElement} Viewport.\n * @api\n */\n PluggableMap.prototype.getViewport = function getViewport () {\n return this.viewport_;\n };\n\n /**\n * Get the element that serves as the container for overlays. Elements added to\n * this container will let mousedown and touchstart events through to the map,\n * so clicks and gestures on an overlay will trigger {@link module:ol/MapBrowserEvent~MapBrowserEvent}\n * events.\n * @return {!HTMLElement} The map's overlay container.\n */\n PluggableMap.prototype.getOverlayContainer = function getOverlayContainer () {\n return this.overlayContainer_;\n };\n\n /**\n * Get the element that serves as a container for overlays that don't allow\n * event propagation. Elements added to this container won't let mousedown and\n * touchstart events through to the map, so clicks and gestures on an overlay\n * don't trigger any {@link module:ol/MapBrowserEvent~MapBrowserEvent}.\n * @return {!HTMLElement} The map's overlay container that stops events.\n */\n PluggableMap.prototype.getOverlayContainerStopEvent = function getOverlayContainerStopEvent () {\n return this.overlayContainerStopEvent_;\n };\n\n /**\n * @param {import(\"./Tile.js\").default} tile Tile.\n * @param {string} tileSourceKey Tile source key.\n * @param {import(\"./coordinate.js\").Coordinate} tileCenter Tile center.\n * @param {number} tileResolution Tile resolution.\n * @return {number} Tile priority.\n */\n PluggableMap.prototype.getTilePriority = function getTilePriority (tile, tileSourceKey, tileCenter, tileResolution) {\n // Filter out tiles at higher zoom levels than the current zoom level, or that\n // are outside the visible extent.\n var frameState = this.frameState_;\n if (!frameState || !(tileSourceKey in frameState.wantedTiles)) {\n return DROP;\n }\n if (!frameState.wantedTiles[tileSourceKey][tile.getKey()]) {\n return DROP;\n }\n // Prioritize the highest zoom level tiles closest to the focus.\n // Tiles at higher zoom levels are prioritized using Math.log(tileResolution).\n // Within a zoom level, tiles are prioritized by the distance in pixels\n // between the center of the tile and the focus. The factor of 65536 means\n // that the prioritization should behave as desired for tiles up to\n // 65536 * Math.log(2) = 45426 pixels from the focus.\n var deltaX = tileCenter[0] - frameState.focus[0];\n var deltaY = tileCenter[1] - frameState.focus[1];\n return 65536 * Math.log(tileResolution) +\n Math.sqrt(deltaX * deltaX + deltaY * deltaY) / tileResolution;\n };\n\n /**\n * @param {Event} browserEvent Browser event.\n * @param {string=} opt_type Type.\n */\n PluggableMap.prototype.handleBrowserEvent = function handleBrowserEvent (browserEvent, opt_type) {\n var type = opt_type || browserEvent.type;\n var mapBrowserEvent = new MapBrowserEvent(type, this, browserEvent);\n this.handleMapBrowserEvent(mapBrowserEvent);\n };\n\n /**\n * @param {MapBrowserEvent} mapBrowserEvent The event to handle.\n */\n PluggableMap.prototype.handleMapBrowserEvent = function handleMapBrowserEvent (mapBrowserEvent) {\n if (!this.frameState_) {\n // With no view defined, we cannot translate pixels into geographical\n // coordinates so interactions cannot be used.\n return;\n }\n this.focus_ = mapBrowserEvent.coordinate;\n mapBrowserEvent.frameState = this.frameState_;\n var interactionsArray = this.getInteractions().getArray();\n if (this.dispatchEvent(mapBrowserEvent) !== false) {\n for (var i = interactionsArray.length - 1; i >= 0; i--) {\n var interaction = interactionsArray[i];\n if (!interaction.getActive()) {\n continue;\n }\n var cont = interaction.handleEvent(mapBrowserEvent);\n if (!cont) {\n break;\n }\n }\n }\n };\n\n /**\n * @protected\n */\n PluggableMap.prototype.handlePostRender = function handlePostRender () {\n\n var frameState = this.frameState_;\n\n // Manage the tile queue\n // Image loads are expensive and a limited resource, so try to use them\n // efficiently:\n // * When the view is static we allow a large number of parallel tile loads\n // to complete the frame as quickly as possible.\n // * When animating or interacting, image loads can cause janks, so we reduce\n // the maximum number of loads per frame and limit the number of parallel\n // tile loads to remain reactive to view changes and to reduce the chance of\n // loading tiles that will quickly disappear from view.\n var tileQueue = this.tileQueue_;\n if (!tileQueue.isEmpty()) {\n var maxTotalLoading = this.maxTilesLoading_;\n var maxNewLoads = maxTotalLoading;\n if (frameState) {\n var hints = frameState.viewHints;\n if (hints[ViewHint.ANIMATING]) {\n maxTotalLoading = this.loadTilesWhileAnimating_ ? 8 : 0;\n maxNewLoads = 2;\n }\n if (hints[ViewHint.INTERACTING]) {\n maxTotalLoading = this.loadTilesWhileInteracting_ ? 8 : 0;\n maxNewLoads = 2;\n }\n }\n if (tileQueue.getTilesLoading() < maxTotalLoading) {\n tileQueue.reprioritize(); // FIXME only call if view has changed\n tileQueue.loadMoreTiles(maxTotalLoading, maxNewLoads);\n }\n }\n if (frameState && this.hasListener(RenderEventType.RENDERCOMPLETE) && !frameState.animate &&\n !this.tileQueue_.getTilesLoading() && !getLoading(this.getLayers().getArray())) {\n this.renderer_.dispatchRenderEvent(RenderEventType.RENDERCOMPLETE, frameState);\n }\n\n var postRenderFunctions = this.postRenderFunctions_;\n for (var i = 0, ii = postRenderFunctions.length; i < ii; ++i) {\n postRenderFunctions[i](this, frameState);\n }\n postRenderFunctions.length = 0;\n };\n\n /**\n * @private\n */\n PluggableMap.prototype.handleSizeChanged_ = function handleSizeChanged_ () {\n this.render();\n };\n\n /**\n * @private\n */\n PluggableMap.prototype.handleTargetChanged_ = function handleTargetChanged_ () {\n // target may be undefined, null, a string or an Element.\n // If it's a string we convert it to an Element before proceeding.\n // If it's not now an Element we remove the viewport from the DOM.\n // If it's an Element we append the viewport element to it.\n\n var targetElement;\n if (this.getTarget()) {\n targetElement = this.getTargetElement();\n }\n\n if (this.keyHandlerKeys_) {\n for (var i = 0, ii = this.keyHandlerKeys_.length; i < ii; ++i) {\n unlistenByKey(this.keyHandlerKeys_[i]);\n }\n this.keyHandlerKeys_ = null;\n }\n\n if (!targetElement) {\n this.renderer_.removeLayerRenderers();\n removeNode(this.viewport_);\n if (this.handleResize_ !== undefined) {\n removeEventListener(EventType.RESIZE, this.handleResize_, false);\n this.handleResize_ = undefined;\n }\n } else {\n targetElement.appendChild(this.viewport_);\n\n var keyboardEventTarget = !this.keyboardEventTarget_ ?\n targetElement : this.keyboardEventTarget_;\n this.keyHandlerKeys_ = [\n listen(keyboardEventTarget, EventType.KEYDOWN, this.handleBrowserEvent, this),\n listen(keyboardEventTarget, EventType.KEYPRESS, this.handleBrowserEvent, this)\n ];\n\n if (!this.handleResize_) {\n this.handleResize_ = this.updateSize.bind(this);\n window.addEventListener(EventType.RESIZE, this.handleResize_, false);\n }\n }\n\n this.updateSize();\n // updateSize calls setSize, so no need to call this.render\n // ourselves here.\n };\n\n /**\n * @private\n */\n PluggableMap.prototype.handleTileChange_ = function handleTileChange_ () {\n this.render();\n };\n\n /**\n * @private\n */\n PluggableMap.prototype.handleViewPropertyChanged_ = function handleViewPropertyChanged_ () {\n this.render();\n };\n\n /**\n * @private\n */\n PluggableMap.prototype.handleViewChanged_ = function handleViewChanged_ () {\n if (this.viewPropertyListenerKey_) {\n unlistenByKey(this.viewPropertyListenerKey_);\n this.viewPropertyListenerKey_ = null;\n }\n if (this.viewChangeListenerKey_) {\n unlistenByKey(this.viewChangeListenerKey_);\n this.viewChangeListenerKey_ = null;\n }\n var view = this.getView();\n if (view) {\n this.viewport_.setAttribute('data-view', getUid(view));\n this.viewPropertyListenerKey_ = listen(\n view, ObjectEventType.PROPERTYCHANGE,\n this.handleViewPropertyChanged_, this);\n this.viewChangeListenerKey_ = listen(\n view, EventType.CHANGE,\n this.handleViewPropertyChanged_, this);\n }\n this.render();\n };\n\n /**\n * @private\n */\n PluggableMap.prototype.handleLayerGroupChanged_ = function handleLayerGroupChanged_ () {\n if (this.layerGroupPropertyListenerKeys_) {\n this.layerGroupPropertyListenerKeys_.forEach(unlistenByKey);\n this.layerGroupPropertyListenerKeys_ = null;\n }\n var layerGroup = this.getLayerGroup();\n if (layerGroup) {\n this.layerGroupPropertyListenerKeys_ = [\n listen(\n layerGroup, ObjectEventType.PROPERTYCHANGE,\n this.render, this),\n listen(\n layerGroup, EventType.CHANGE,\n this.render, this)\n ];\n }\n this.render();\n };\n\n /**\n * @return {boolean} Is rendered.\n */\n PluggableMap.prototype.isRendered = function isRendered () {\n return !!this.frameState_;\n };\n\n /**\n * Requests an immediate render in a synchronous manner.\n * @api\n */\n PluggableMap.prototype.renderSync = function renderSync () {\n if (this.animationDelayKey_) {\n cancelAnimationFrame(this.animationDelayKey_);\n }\n this.animationDelay_();\n };\n\n /**\n * Request a map rendering (at the next animation frame).\n * @api\n */\n PluggableMap.prototype.render = function render () {\n if (this.animationDelayKey_ === undefined) {\n this.animationDelayKey_ = requestAnimationFrame(this.animationDelay_);\n }\n };\n\n /**\n * Remove the given control from the map.\n * @param {import(\"./control/Control.js\").default} control Control.\n * @return {import(\"./control/Control.js\").default|undefined} The removed control (or undefined\n * if the control was not found).\n * @api\n */\n PluggableMap.prototype.removeControl = function removeControl (control) {\n return this.getControls().remove(control);\n };\n\n /**\n * Remove the given interaction from the map.\n * @param {import(\"./interaction/Interaction.js\").default} interaction Interaction to remove.\n * @return {import(\"./interaction/Interaction.js\").default|undefined} The removed interaction (or\n * undefined if the interaction was not found).\n * @api\n */\n PluggableMap.prototype.removeInteraction = function removeInteraction (interaction) {\n return this.getInteractions().remove(interaction);\n };\n\n /**\n * Removes the given layer from the map.\n * @param {import(\"./layer/Base.js\").default} layer Layer.\n * @return {import(\"./layer/Base.js\").default|undefined} The removed layer (or undefined if the\n * layer was not found).\n * @api\n */\n PluggableMap.prototype.removeLayer = function removeLayer (layer) {\n var layers = this.getLayerGroup().getLayers();\n return layers.remove(layer);\n };\n\n /**\n * Remove the given overlay from the map.\n * @param {import(\"./Overlay.js\").default} overlay Overlay.\n * @return {import(\"./Overlay.js\").default|undefined} The removed overlay (or undefined\n * if the overlay was not found).\n * @api\n */\n PluggableMap.prototype.removeOverlay = function removeOverlay (overlay) {\n return this.getOverlays().remove(overlay);\n };\n\n /**\n * @param {number} time Time.\n * @private\n */\n PluggableMap.prototype.renderFrame_ = function renderFrame_ (time) {\n var viewState;\n\n var size = this.getSize();\n var view = this.getView();\n var extent = createEmpty();\n var previousFrameState = this.frameState_;\n /** @type {?FrameState} */\n var frameState = null;\n if (size !== undefined && hasArea(size) && view && view.isDef()) {\n var viewHints = view.getHints(this.frameState_ ? this.frameState_.viewHints : undefined);\n var layerStatesArray = this.getLayerGroup().getLayerStatesArray();\n var layerStates = {};\n for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n layerStates[getUid(layerStatesArray[i].layer)] = layerStatesArray[i];\n }\n viewState = view.getState(this.pixelRatio_);\n frameState = /** @type {FrameState} */ ({\n animate: false,\n coordinateToPixelTransform: this.coordinateToPixelTransform_,\n extent: extent,\n focus: this.focus_ ? this.focus_ : viewState.center,\n index: this.frameIndex_++,\n layerStates: layerStates,\n layerStatesArray: layerStatesArray,\n pixelRatio: this.pixelRatio_,\n pixelToCoordinateTransform: this.pixelToCoordinateTransform_,\n postRenderFunctions: [],\n size: size,\n skippedFeatureUids: this.skippedFeatureUids_,\n tileQueue: this.tileQueue_,\n time: time,\n usedTiles: {},\n viewState: viewState,\n viewHints: viewHints,\n wantedTiles: {}\n });\n }\n\n if (frameState) {\n frameState.extent = getForViewAndSize(viewState.center,\n viewState.resolution, viewState.rotation, frameState.size, extent);\n }\n\n this.frameState_ = frameState;\n this.renderer_.renderFrame(frameState);\n\n if (frameState) {\n if (frameState.animate) {\n this.render();\n }\n Array.prototype.push.apply(this.postRenderFunctions_, frameState.postRenderFunctions);\n\n if (previousFrameState) {\n var moveStart = !this.previousExtent_ ||\n (!isEmpty(this.previousExtent_) &&\n !equals(frameState.extent, this.previousExtent_));\n if (moveStart) {\n this.dispatchEvent(\n new MapEvent(MapEventType.MOVESTART, this, previousFrameState));\n this.previousExtent_ = createOrUpdateEmpty(this.previousExtent_);\n }\n }\n\n var idle = this.previousExtent_ &&\n !frameState.viewHints[ViewHint.ANIMATING] &&\n !frameState.viewHints[ViewHint.INTERACTING] &&\n !equals(frameState.extent, this.previousExtent_);\n\n if (idle) {\n this.dispatchEvent(new MapEvent(MapEventType.MOVEEND, this, frameState));\n clone(frameState.extent, this.previousExtent_);\n }\n }\n\n this.dispatchEvent(new MapEvent(MapEventType.POSTRENDER, this, frameState));\n\n setTimeout(this.handlePostRender.bind(this), 0);\n\n };\n\n /**\n * Sets the layergroup of this map.\n * @param {LayerGroup} layerGroup A layer group containing the layers in this map.\n * @observable\n * @api\n */\n PluggableMap.prototype.setLayerGroup = function setLayerGroup (layerGroup) {\n this.set(MapProperty.LAYERGROUP, layerGroup);\n };\n\n /**\n * Set the size of this map.\n * @param {import(\"./size.js\").Size|undefined} size The size in pixels of the map in the DOM.\n * @observable\n * @api\n */\n PluggableMap.prototype.setSize = function setSize (size) {\n this.set(MapProperty.SIZE, size);\n };\n\n /**\n * Set the target element to render this map into.\n * @param {HTMLElement|string|undefined} target The Element or id of the Element\n * that the map is rendered in.\n * @observable\n * @api\n */\n PluggableMap.prototype.setTarget = function setTarget (target) {\n this.set(MapProperty.TARGET, target);\n };\n\n /**\n * Set the view for this map.\n * @param {View} view The view that controls this map.\n * @observable\n * @api\n */\n PluggableMap.prototype.setView = function setView (view) {\n this.set(MapProperty.VIEW, view);\n };\n\n /**\n * @param {import(\"./Feature.js\").default} feature Feature.\n */\n PluggableMap.prototype.skipFeature = function skipFeature (feature) {\n this.skippedFeatureUids_[getUid(feature)] = true;\n this.render();\n };\n\n /**\n * Force a recalculation of the map viewport size. This should be called when\n * third-party code changes the size of the map viewport.\n * @api\n */\n PluggableMap.prototype.updateSize = function updateSize () {\n var targetElement = this.getTargetElement();\n\n if (!targetElement) {\n this.setSize(undefined);\n } else {\n var computedStyle = getComputedStyle(targetElement);\n this.setSize([\n targetElement.offsetWidth -\n parseFloat(computedStyle['borderLeftWidth']) -\n parseFloat(computedStyle['paddingLeft']) -\n parseFloat(computedStyle['paddingRight']) -\n parseFloat(computedStyle['borderRightWidth']),\n targetElement.offsetHeight -\n parseFloat(computedStyle['borderTopWidth']) -\n parseFloat(computedStyle['paddingTop']) -\n parseFloat(computedStyle['paddingBottom']) -\n parseFloat(computedStyle['borderBottomWidth'])\n ]);\n }\n };\n\n /**\n * @param {import(\"./Feature.js\").default} feature Feature.\n */\n PluggableMap.prototype.unskipFeature = function unskipFeature (feature) {\n delete this.skippedFeatureUids_[getUid(feature)];\n this.render();\n };\n\n return PluggableMap;\n}(BaseObject));\n\n\n/**\n * @param {MapOptions} options Map options.\n * @return {MapOptionsInternal} Internal map options.\n */\nfunction createOptionsInternal(options) {\n\n /**\n * @type {HTMLElement|Document}\n */\n var keyboardEventTarget = null;\n if (options.keyboardEventTarget !== undefined) {\n keyboardEventTarget = typeof options.keyboardEventTarget === 'string' ?\n document.getElementById(options.keyboardEventTarget) :\n options.keyboardEventTarget;\n }\n\n /**\n * @type {Object}\n */\n var values = {};\n\n var layerGroup = options.layers && typeof /** @type {?} */ (options.layers).getLayers === 'function' ?\n /** @type {LayerGroup} */ (options.layers) : new LayerGroup({layers: /** @type {Collection} */ (options.layers)});\n values[MapProperty.LAYERGROUP] = layerGroup;\n\n values[MapProperty.TARGET] = options.target;\n\n values[MapProperty.VIEW] = options.view !== undefined ?\n options.view : new View();\n\n var controls;\n if (options.controls !== undefined) {\n if (Array.isArray(options.controls)) {\n controls = new Collection(options.controls.slice());\n } else {\n assert(typeof /** @type {?} */ (options.controls).getArray === 'function',\n 47); // Expected `controls` to be an array or an `import(\"./Collection.js\").Collection`\n controls = /** @type {Collection} */ (options.controls);\n }\n }\n\n var interactions;\n if (options.interactions !== undefined) {\n if (Array.isArray(options.interactions)) {\n interactions = new Collection(options.interactions.slice());\n } else {\n assert(typeof /** @type {?} */ (options.interactions).getArray === 'function',\n 48); // Expected `interactions` to be an array or an `import(\"./Collection.js\").Collection`\n interactions = /** @type {Collection} */ (options.interactions);\n }\n }\n\n var overlays;\n if (options.overlays !== undefined) {\n if (Array.isArray(options.overlays)) {\n overlays = new Collection(options.overlays.slice());\n } else {\n assert(typeof /** @type {?} */ (options.overlays).getArray === 'function',\n 49); // Expected `overlays` to be an array or an `import(\"./Collection.js\").Collection`\n overlays = options.overlays;\n }\n } else {\n overlays = new Collection();\n }\n\n return {\n controls: controls,\n interactions: interactions,\n keyboardEventTarget: keyboardEventTarget,\n overlays: overlays,\n values: values\n };\n\n}\nexport default PluggableMap;\n\n/**\n * @param {Array} layers Layers.\n * @return {boolean} Layers have sources that are still loading.\n */\nfunction getLoading(layers) {\n for (var i = 0, ii = layers.length; i < ii; ++i) {\n var layer = layers[i];\n if (typeof /** @type {?} */ (layer).getLayers === 'function') {\n return getLoading(/** @type {LayerGroup} */ (layer).getLayers().getArray());\n } else {\n var source = /** @type {import(\"./layer/Layer.js\").default} */ (\n layer).getSource();\n if (source && source.loading) {\n return true;\n }\n }\n }\n return false;\n}\n\n//# sourceMappingURL=PluggableMap.js.map","/**\n * @module ol/control/Control\n */\nimport {VOID} from '../functions.js';\nimport MapEventType from '../MapEventType.js';\nimport BaseObject from '../Object.js';\nimport {removeNode} from '../dom.js';\nimport {listen, unlistenByKey} from '../events.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {HTMLElement} [element] The element is the control's\n * container element. This only needs to be specified if you're developing\n * a custom control.\n * @property {function(import(\"../MapEvent.js\").default)} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n * @property {HTMLElement|string} [target] Specify a target if you want\n * the control to be rendered outside of the map's viewport.\n */\n\n\n/**\n * @classdesc\n * A control is a visible widget with a DOM element in a fixed position on the\n * screen. They can involve user input (buttons), or be informational only;\n * the position is determined using CSS. By default these are placed in the\n * container with CSS class name `ol-overlaycontainer-stopevent`, but can use\n * any outside DOM element.\n *\n * This is the base class for controls. You can use it for simple custom\n * controls by creating the element with listeners, creating an instance:\n * ```js\n * var myControl = new Control({element: myElement});\n * ```\n * and then adding this to the map.\n *\n * The main advantage of having this as a control rather than a simple separate\n * DOM element is that preventing propagation is handled for you. Controls\n * will also be objects in a {@link module:ol/Collection~Collection}, so you can use their methods.\n *\n * You can also extend this base for your own control class. See\n * examples/custom-controls for an example of how to do this.\n *\n * @api\n */\nvar Control = /*@__PURE__*/(function (BaseObject) {\n function Control(options) {\n\n BaseObject.call(this);\n\n /**\n * @protected\n * @type {HTMLElement}\n */\n this.element = options.element ? options.element : null;\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.target_ = null;\n\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n this.map_ = null;\n\n /**\n * @protected\n * @type {!Array}\n */\n this.listenerKeys = [];\n\n /**\n * @type {function(import(\"../MapEvent.js\").default)}\n */\n this.render = options.render ? options.render : VOID;\n\n if (options.target) {\n this.setTarget(options.target);\n }\n\n }\n\n if ( BaseObject ) Control.__proto__ = BaseObject;\n Control.prototype = Object.create( BaseObject && BaseObject.prototype );\n Control.prototype.constructor = Control;\n\n /**\n * @inheritDoc\n */\n Control.prototype.disposeInternal = function disposeInternal () {\n removeNode(this.element);\n BaseObject.prototype.disposeInternal.call(this);\n };\n\n /**\n * Get the map associated with this control.\n * @return {import(\"../PluggableMap.js\").default} Map.\n * @api\n */\n Control.prototype.getMap = function getMap () {\n return this.map_;\n };\n\n /**\n * Remove the control from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n Control.prototype.setMap = function setMap (map) {\n if (this.map_) {\n removeNode(this.element);\n }\n for (var i = 0, ii = this.listenerKeys.length; i < ii; ++i) {\n unlistenByKey(this.listenerKeys[i]);\n }\n this.listenerKeys.length = 0;\n this.map_ = map;\n if (this.map_) {\n var target = this.target_ ?\n this.target_ : map.getOverlayContainerStopEvent();\n target.appendChild(this.element);\n if (this.render !== VOID) {\n this.listenerKeys.push(listen(map,\n MapEventType.POSTRENDER, this.render, this));\n }\n map.render();\n }\n };\n\n /**\n * This function is used to set a target element for the control. It has no\n * effect if it is called after the control has been added to the map (i.e.\n * after `setMap` is called on the control). If no `target` is set in the\n * options passed to the control constructor and if `setTarget` is not called\n * then the control is added to the map's overlay container.\n * @param {HTMLElement|string} target Target.\n * @api\n */\n Control.prototype.setTarget = function setTarget (target) {\n this.target_ = typeof target === 'string' ?\n document.getElementById(target) :\n target;\n };\n\n return Control;\n}(BaseObject));\n\n\nexport default Control;\n\n//# sourceMappingURL=Control.js.map","/**\n * @module ol/css\n */\n\n\n/**\n * The CSS class for hidden feature.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_HIDDEN = 'ol-hidden';\n\n\n/**\n * The CSS class that we'll give the DOM elements to have them selectable.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_SELECTABLE = 'ol-selectable';\n\n\n/**\n * The CSS class that we'll give the DOM elements to have them unselectable.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_UNSELECTABLE = 'ol-unselectable';\n\n\n/**\n * The CSS class for unsupported feature.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_UNSUPPORTED = 'ol-unsupported';\n\n\n/**\n * The CSS class for controls.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_CONTROL = 'ol-control';\n\n\n/**\n * The CSS class that we'll give the DOM elements that are collapsed, i.e.\n * to those elements which usually can be expanded.\n *\n * @const\n * @type {string}\n */\nexport var CLASS_COLLAPSED = 'ol-collapsed';\n\n\n/**\n * Get the list of font families from a font spec. Note that this doesn't work\n * for font families that have commas in them.\n * @param {string} The CSS font property.\n * @return {Object} The font families (or null if the input spec is invalid).\n */\nexport var getFontFamilies = (function() {\n var style;\n var cache = {};\n return function(font) {\n if (!style) {\n style = document.createElement('div').style;\n }\n if (!(font in cache)) {\n style.font = font;\n var family = style.fontFamily;\n style.font = '';\n if (!family) {\n return null;\n }\n cache[font] = family.split(/,\\s?/);\n }\n return cache[font];\n };\n})();\n\n//# sourceMappingURL=css.js.map","/**\n * @module ol/layer/Layer\n */\nimport {listen, unlistenByKey} from '../events.js';\nimport EventType from '../events/EventType.js';\nimport {getUid} from '../util.js';\nimport {getChangeEventType} from '../Object.js';\nimport BaseLayer from './Base.js';\nimport LayerProperty from './Property.js';\nimport {assign} from '../obj.js';\nimport RenderEventType from '../render/EventType.js';\nimport SourceState from '../source/State.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {number} [opacity=1] Opacity (0, 1).\n * @property {boolean} [visible=true] Visibility.\n * @property {import(\"../extent.js\").Extent} [extent] The bounding extent for layer rendering. The layer will not be\n * rendered outside of this extent.\n * @property {number} [zIndex] The z-index for layer rendering. At rendering time, the layers\n * will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed\n * for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()`\n * method was used.\n * @property {number} [minResolution] The minimum resolution (inclusive) at which this layer will be\n * visible.\n * @property {number} [maxResolution] The maximum resolution (exclusive) below which this layer will\n * be visible.\n * @property {import(\"../source/Source.js\").default} [source] Source for this layer. If not provided to the constructor,\n * the source can be set by calling {@link module:ol/layer/Layer#setSource layer.setSource(source)} after\n * construction.\n * @property {import(\"../PluggableMap.js\").default} [map] Map.\n */\n\n\n/**\n * @typedef {Object} State\n * @property {import(\"./Base.js\").default} layer\n * @property {number} opacity\n * @property {SourceState} sourceState\n * @property {boolean} visible\n * @property {boolean} managed\n * @property {import(\"../extent.js\").Extent} [extent]\n * @property {number} zIndex\n * @property {number} maxResolution\n * @property {number} minResolution\n */\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * A visual representation of raster or vector map data.\n * Layers group together those properties that pertain to how the data is to be\n * displayed, irrespective of the source of that data.\n *\n * Layers are usually added to a map with {@link module:ol/Map#addLayer}. Components\n * like {@link module:ol/interaction/Select~Select} use unmanaged layers\n * internally. These unmanaged layers are associated with the map using\n * {@link module:ol/layer/Layer~Layer#setMap} instead.\n *\n * A generic `change` event is fired when the state of the source changes.\n *\n * @fires import(\"../render/Event.js\").RenderEvent\n */\nvar Layer = /*@__PURE__*/(function (BaseLayer) {\n function Layer(options) {\n\n var baseOptions = assign({}, options);\n delete baseOptions.source;\n\n BaseLayer.call(this, baseOptions);\n\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n this.mapPrecomposeKey_ = null;\n\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n this.mapRenderKey_ = null;\n\n /**\n * @private\n * @type {?import(\"../events.js\").EventsKey}\n */\n this.sourceChangeKey_ = null;\n\n if (options.map) {\n this.setMap(options.map);\n }\n\n listen(this,\n getChangeEventType(LayerProperty.SOURCE),\n this.handleSourcePropertyChange_, this);\n\n var source = options.source ? options.source : null;\n this.setSource(source);\n }\n\n if ( BaseLayer ) Layer.__proto__ = BaseLayer;\n Layer.prototype = Object.create( BaseLayer && BaseLayer.prototype );\n Layer.prototype.constructor = Layer;\n\n /**\n * @inheritDoc\n */\n Layer.prototype.getLayersArray = function getLayersArray (opt_array) {\n var array = opt_array ? opt_array : [];\n array.push(this);\n return array;\n };\n\n /**\n * @inheritDoc\n */\n Layer.prototype.getLayerStatesArray = function getLayerStatesArray (opt_states) {\n var states = opt_states ? opt_states : [];\n states.push(this.getLayerState());\n return states;\n };\n\n /**\n * Get the layer source.\n * @return {import(\"../source/Source.js\").default} The layer source (or `null` if not yet set).\n * @observable\n * @api\n */\n Layer.prototype.getSource = function getSource () {\n var source = this.get(LayerProperty.SOURCE);\n return (\n /** @type {import(\"../source/Source.js\").default} */ (source) || null\n );\n };\n\n /**\n * @inheritDoc\n */\n Layer.prototype.getSourceState = function getSourceState () {\n var source = this.getSource();\n return !source ? SourceState.UNDEFINED : source.getState();\n };\n\n /**\n * @private\n */\n Layer.prototype.handleSourceChange_ = function handleSourceChange_ () {\n this.changed();\n };\n\n /**\n * @private\n */\n Layer.prototype.handleSourcePropertyChange_ = function handleSourcePropertyChange_ () {\n if (this.sourceChangeKey_) {\n unlistenByKey(this.sourceChangeKey_);\n this.sourceChangeKey_ = null;\n }\n var source = this.getSource();\n if (source) {\n this.sourceChangeKey_ = listen(source,\n EventType.CHANGE, this.handleSourceChange_, this);\n }\n this.changed();\n };\n\n /**\n * Sets the layer to be rendered on top of other layers on a map. The map will\n * not manage this layer in its layers collection, and the callback in\n * {@link module:ol/Map#forEachLayerAtPixel} will receive `null` as layer. This\n * is useful for temporary layers. To remove an unmanaged layer from the map,\n * use `#setMap(null)`.\n *\n * To add the layer to a map and have it managed by the map, use\n * {@link module:ol/Map#addLayer} instead.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n * @api\n */\n Layer.prototype.setMap = function setMap (map) {\n if (this.mapPrecomposeKey_) {\n unlistenByKey(this.mapPrecomposeKey_);\n this.mapPrecomposeKey_ = null;\n }\n if (!map) {\n this.changed();\n }\n if (this.mapRenderKey_) {\n unlistenByKey(this.mapRenderKey_);\n this.mapRenderKey_ = null;\n }\n if (map) {\n this.mapPrecomposeKey_ = listen(map, RenderEventType.PRECOMPOSE, function(evt) {\n var renderEvent = /** @type {import(\"../render/Event.js\").default} */ (evt);\n var layerState = this.getLayerState();\n layerState.managed = false;\n if (this.getZIndex() === undefined) {\n layerState.zIndex = Infinity;\n }\n renderEvent.frameState.layerStatesArray.push(layerState);\n renderEvent.frameState.layerStates[getUid(this)] = layerState;\n }, this);\n this.mapRenderKey_ = listen(this, EventType.CHANGE, map.render, map);\n this.changed();\n }\n };\n\n /**\n * Set the layer source.\n * @param {import(\"../source/Source.js\").default} source The layer source.\n * @observable\n * @api\n */\n Layer.prototype.setSource = function setSource (source) {\n this.set(LayerProperty.SOURCE, source);\n };\n\n return Layer;\n}(BaseLayer));\n\n\n/**\n * Return `true` if the layer is visible, and if the passed resolution is\n * between the layer's minResolution and maxResolution. The comparison is\n * inclusive for `minResolution` and exclusive for `maxResolution`.\n * @param {State} layerState Layer state.\n * @param {number} resolution Resolution.\n * @return {boolean} The layer is visible at the given resolution.\n */\nexport function visibleAtResolution(layerState, resolution) {\n return layerState.visible && resolution >= layerState.minResolution &&\n resolution < layerState.maxResolution;\n}\n\n\nexport default Layer;\n\n//# sourceMappingURL=Layer.js.map","/**\n * @module ol/control/Attribution\n */\nimport {equals} from '../array.js';\nimport Control from './Control.js';\nimport {CLASS_CONTROL, CLASS_UNSELECTABLE, CLASS_COLLAPSED} from '../css.js';\nimport {removeChildren, replaceNode} from '../dom.js';\nimport {listen} from '../events.js';\nimport EventType from '../events/EventType.js';\nimport {visibleAtResolution} from '../layer/Layer.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-attribution'] CSS class name.\n * @property {HTMLElement|string} [target] Specify a target if you\n * want the control to be rendered outside of the map's\n * viewport.\n * @property {boolean} [collapsible] Specify if attributions can\n * be collapsed. If not specified, sources control this behavior with their\n * `attributionsCollapsible` setting.\n * @property {boolean} [collapsed=true] Specify if attributions should\n * be collapsed at startup.\n * @property {string} [tipLabel='Attributions'] Text label to use for the button tip.\n * @property {string} [label='i'] Text label to use for the\n * collapsed attributions button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|HTMLElement} [collapseLabel='»'] Text label to use\n * for the expanded attributions button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {function(import(\"../MapEvent.js\").default)} [render] Function called when\n * the control should be re-rendered. This is called in a `requestAnimationFrame`\n * callback.\n */\n\n\n/**\n * @classdesc\n * Control to show all the attributions associated with the layer sources\n * in the map. This control is one of the default controls included in maps.\n * By default it will show in the bottom right portion of the map, but this can\n * be changed by using a css selector for `.ol-attribution`.\n *\n * @api\n */\nvar Attribution = /*@__PURE__*/(function (Control) {\n function Attribution(opt_options) {\n\n var options = opt_options ? opt_options : {};\n\n Control.call(this, {\n element: document.createElement('div'),\n render: options.render || render,\n target: options.target\n });\n\n /**\n * @private\n * @type {HTMLElement}\n */\n this.ulElement_ = document.createElement('ul');\n\n /**\n * @private\n * @type {boolean}\n */\n this.collapsed_ = options.collapsed !== undefined ? options.collapsed : true;\n\n /**\n * @private\n * @type {boolean}\n */\n this.overrideCollapsible_ = options.collapsible !== undefined;\n\n /**\n * @private\n * @type {boolean}\n */\n this.collapsible_ = options.collapsible !== undefined ?\n options.collapsible : true;\n\n if (!this.collapsible_) {\n this.collapsed_ = false;\n }\n\n var className = options.className !== undefined ? options.className : 'ol-attribution';\n\n var tipLabel = options.tipLabel !== undefined ? options.tipLabel : 'Attributions';\n\n var collapseLabel = options.collapseLabel !== undefined ? options.collapseLabel : '\\u00BB';\n\n if (typeof collapseLabel === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n this.collapseLabel_ = document.createElement('span');\n this.collapseLabel_.textContent = collapseLabel;\n } else {\n this.collapseLabel_ = collapseLabel;\n }\n\n var label = options.label !== undefined ? options.label : 'i';\n\n if (typeof label === 'string') {\n /**\n * @private\n * @type {HTMLElement}\n */\n this.label_ = document.createElement('span');\n this.label_.textContent = label;\n } else {\n this.label_ = label;\n }\n\n\n var activeLabel = (this.collapsible_ && !this.collapsed_) ?\n this.collapseLabel_ : this.label_;\n var button = document.createElement('button');\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(activeLabel);\n\n listen(button, EventType.CLICK, this.handleClick_, this);\n\n var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL +\n (this.collapsed_ && this.collapsible_ ? ' ' + CLASS_COLLAPSED : '') +\n (this.collapsible_ ? '' : ' ol-uncollapsible');\n var element = this.element;\n element.className = cssClasses;\n element.appendChild(this.ulElement_);\n element.appendChild(button);\n\n /**\n * A list of currently rendered resolutions.\n * @type {Array}\n * @private\n */\n this.renderedAttributions_ = [];\n\n /**\n * @private\n * @type {boolean}\n */\n this.renderedVisible_ = true;\n\n }\n\n if ( Control ) Attribution.__proto__ = Control;\n Attribution.prototype = Object.create( Control && Control.prototype );\n Attribution.prototype.constructor = Attribution;\n\n /**\n * Collect a list of visible attributions and set the collapsible state.\n * @param {import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n * @return {Array} Attributions.\n * @private\n */\n Attribution.prototype.collectSourceAttributions_ = function collectSourceAttributions_ (frameState) {\n /**\n * Used to determine if an attribution already exists.\n * @type {!Object}\n */\n var lookup = {};\n\n /**\n * A list of visible attributions.\n * @type {Array}\n */\n var visibleAttributions = [];\n\n var layerStatesArray = frameState.layerStatesArray;\n var resolution = frameState.viewState.resolution;\n for (var i = 0, ii = layerStatesArray.length; i < ii; ++i) {\n var layerState = layerStatesArray[i];\n if (!visibleAtResolution(layerState, resolution)) {\n continue;\n }\n\n var source = /** @type {import(\"../layer/Layer.js\").default} */ (layerState.layer).getSource();\n if (!source) {\n continue;\n }\n\n var attributionGetter = source.getAttributions();\n if (!attributionGetter) {\n continue;\n }\n\n var attributions = attributionGetter(frameState);\n if (!attributions) {\n continue;\n }\n\n if (!this.overrideCollapsible_ && source.getAttributionsCollapsible() === false) {\n this.setCollapsible(false);\n }\n\n if (Array.isArray(attributions)) {\n for (var j = 0, jj = attributions.length; j < jj; ++j) {\n if (!(attributions[j] in lookup)) {\n visibleAttributions.push(attributions[j]);\n lookup[attributions[j]] = true;\n }\n }\n } else {\n if (!(attributions in lookup)) {\n visibleAttributions.push(attributions);\n lookup[attributions] = true;\n }\n }\n }\n return visibleAttributions;\n };\n\n /**\n * @private\n * @param {?import(\"../PluggableMap.js\").FrameState} frameState Frame state.\n */\n Attribution.prototype.updateElement_ = function updateElement_ (frameState) {\n if (!frameState) {\n if (this.renderedVisible_) {\n this.element.style.display = 'none';\n this.renderedVisible_ = false;\n }\n return;\n }\n\n var attributions = this.collectSourceAttributions_(frameState);\n\n var visible = attributions.length > 0;\n if (this.renderedVisible_ != visible) {\n this.element.style.display = visible ? '' : 'none';\n this.renderedVisible_ = visible;\n }\n\n if (equals(attributions, this.renderedAttributions_)) {\n return;\n }\n\n removeChildren(this.ulElement_);\n\n // append the attributions\n for (var i = 0, ii = attributions.length; i < ii; ++i) {\n var element = document.createElement('li');\n element.innerHTML = attributions[i];\n this.ulElement_.appendChild(element);\n }\n\n this.renderedAttributions_ = attributions;\n };\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n Attribution.prototype.handleClick_ = function handleClick_ (event) {\n event.preventDefault();\n this.handleToggle_();\n };\n\n /**\n * @private\n */\n Attribution.prototype.handleToggle_ = function handleToggle_ () {\n this.element.classList.toggle(CLASS_COLLAPSED);\n if (this.collapsed_) {\n replaceNode(this.collapseLabel_, this.label_);\n } else {\n replaceNode(this.label_, this.collapseLabel_);\n }\n this.collapsed_ = !this.collapsed_;\n };\n\n /**\n * Return `true` if the attribution is collapsible, `false` otherwise.\n * @return {boolean} True if the widget is collapsible.\n * @api\n */\n Attribution.prototype.getCollapsible = function getCollapsible () {\n return this.collapsible_;\n };\n\n /**\n * Set whether the attribution should be collapsible.\n * @param {boolean} collapsible True if the widget is collapsible.\n * @api\n */\n Attribution.prototype.setCollapsible = function setCollapsible (collapsible) {\n if (this.collapsible_ === collapsible) {\n return;\n }\n this.collapsible_ = collapsible;\n this.element.classList.toggle('ol-uncollapsible');\n if (!collapsible && this.collapsed_) {\n this.handleToggle_();\n }\n };\n\n /**\n * Collapse or expand the attribution according to the passed parameter. Will\n * not do anything if the attribution isn't collapsible or if the current\n * collapsed state is already the one requested.\n * @param {boolean} collapsed True if the widget is collapsed.\n * @api\n */\n Attribution.prototype.setCollapsed = function setCollapsed (collapsed) {\n if (!this.collapsible_ || this.collapsed_ === collapsed) {\n return;\n }\n this.handleToggle_();\n };\n\n /**\n * Return `true` when the attribution is currently collapsed or `false`\n * otherwise.\n * @return {boolean} True if the widget is collapsed.\n * @api\n */\n Attribution.prototype.getCollapsed = function getCollapsed () {\n return this.collapsed_;\n };\n\n return Attribution;\n}(Control));\n\n\n/**\n * Update the attribution element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @this {Attribution}\n * @api\n */\nexport function render(mapEvent) {\n this.updateElement_(mapEvent.frameState);\n}\n\n\nexport default Attribution;\n\n//# sourceMappingURL=Attribution.js.map","/**\n * @module ol/control/Rotate\n */\nimport Control from './Control.js';\nimport {CLASS_CONTROL, CLASS_HIDDEN, CLASS_UNSELECTABLE} from '../css.js';\nimport {easeOut} from '../easing.js';\nimport {listen} from '../events.js';\nimport EventType from '../events/EventType.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {string} [className='ol-rotate'] CSS class name.\n * @property {string|HTMLElement} [label='⇧'] Text label to use for the rotate button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [tipLabel='Reset rotation'] Text label to use for the rotate tip.\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {boolean} [autoHide=true] Hide the control when rotation is 0.\n * @property {function(import(\"../MapEvent.js\").default)} [render] Function called when the control should\n * be re-rendered. This is called in a `requestAnimationFrame` callback.\n * @property {function()} [resetNorth] Function called when the control is clicked.\n * This will override the default `resetNorth`.\n * @property {HTMLElement|string} [target] Specify a target if you want the control to be\n * rendered outside of the map's viewport.\n */\n\n\n/**\n * @classdesc\n * A button control to reset rotation to 0.\n * To style this control use css selector `.ol-rotate`. A `.ol-hidden` css\n * selector is added to the button when the rotation is 0.\n *\n * @api\n */\nvar Rotate = /*@__PURE__*/(function (Control) {\n function Rotate(opt_options) {\n\n var options = opt_options ? opt_options : {};\n\n Control.call(this, {\n element: document.createElement('div'),\n render: options.render || render,\n target: options.target\n });\n\n var className = options.className !== undefined ? options.className : 'ol-rotate';\n\n var label = options.label !== undefined ? options.label : '\\u21E7';\n\n /**\n * @type {HTMLElement}\n * @private\n */\n this.label_ = null;\n\n if (typeof label === 'string') {\n this.label_ = document.createElement('span');\n this.label_.className = 'ol-compass';\n this.label_.textContent = label;\n } else {\n this.label_ = label;\n this.label_.classList.add('ol-compass');\n }\n\n var tipLabel = options.tipLabel ? options.tipLabel : 'Reset rotation';\n\n var button = document.createElement('button');\n button.className = className + '-reset';\n button.setAttribute('type', 'button');\n button.title = tipLabel;\n button.appendChild(this.label_);\n\n listen(button, EventType.CLICK, this.handleClick_, this);\n\n var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n var element = this.element;\n element.className = cssClasses;\n element.appendChild(button);\n\n this.callResetNorth_ = options.resetNorth ? options.resetNorth : undefined;\n\n /**\n * @type {number}\n * @private\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n\n /**\n * @type {boolean}\n * @private\n */\n this.autoHide_ = options.autoHide !== undefined ? options.autoHide : true;\n\n /**\n * @private\n * @type {number|undefined}\n */\n this.rotation_ = undefined;\n\n if (this.autoHide_) {\n this.element.classList.add(CLASS_HIDDEN);\n }\n\n }\n\n if ( Control ) Rotate.__proto__ = Control;\n Rotate.prototype = Object.create( Control && Control.prototype );\n Rotate.prototype.constructor = Rotate;\n\n /**\n * @param {MouseEvent} event The event to handle\n * @private\n */\n Rotate.prototype.handleClick_ = function handleClick_ (event) {\n event.preventDefault();\n if (this.callResetNorth_ !== undefined) {\n this.callResetNorth_();\n } else {\n this.resetNorth_();\n }\n };\n\n /**\n * @private\n */\n Rotate.prototype.resetNorth_ = function resetNorth_ () {\n var map = this.getMap();\n var view = map.getView();\n if (!view) {\n // the map does not have a view, so we can't act\n // upon it\n return;\n }\n if (view.getRotation() !== undefined) {\n if (this.duration_ > 0) {\n view.animate({\n rotation: 0,\n duration: this.duration_,\n easing: easeOut\n });\n } else {\n view.setRotation(0);\n }\n }\n };\n\n return Rotate;\n}(Control));\n\n\n/**\n * Update the rotate control element.\n * @param {import(\"../MapEvent.js\").default} mapEvent Map event.\n * @this {Rotate}\n * @api\n */\nexport function render(mapEvent) {\n var frameState = mapEvent.frameState;\n if (!frameState) {\n return;\n }\n var rotation = frameState.viewState.rotation;\n if (rotation != this.rotation_) {\n var transform = 'rotate(' + rotation + 'rad)';\n if (this.autoHide_) {\n var contains = this.element.classList.contains(CLASS_HIDDEN);\n if (!contains && rotation === 0) {\n this.element.classList.add(CLASS_HIDDEN);\n } else if (contains && rotation !== 0) {\n this.element.classList.remove(CLASS_HIDDEN);\n }\n }\n this.label_.style.msTransform = transform;\n this.label_.style.webkitTransform = transform;\n this.label_.style.transform = transform;\n }\n this.rotation_ = rotation;\n}\n\nexport default Rotate;\n\n//# sourceMappingURL=Rotate.js.map","/**\n * @module ol/control/Zoom\n */\nimport {listen} from '../events.js';\nimport EventType from '../events/EventType.js';\nimport Control from './Control.js';\nimport {CLASS_CONTROL, CLASS_UNSELECTABLE} from '../css.js';\nimport {easeOut} from '../easing.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {string} [className='ol-zoom'] CSS class name.\n * @property {string|HTMLElement} [zoomInLabel='+'] Text label to use for the zoom-in\n * button. Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string|HTMLElement} [zoomOutLabel='-'] Text label to use for the zoom-out button.\n * Instead of text, also an element (e.g. a `span` element) can be used.\n * @property {string} [zoomInTipLabel='Zoom in'] Text label to use for the button tip.\n * @property {string} [zoomOutTipLabel='Zoom out'] Text label to use for the button tip.\n * @property {number} [delta=1] The zoom delta applied on each click.\n * @property {HTMLElement|string} [target] Specify a target if you want the control to be\n * rendered outside of the map's viewport.\n */\n\n\n/**\n * @classdesc\n * A control with 2 buttons, one for zoom in and one for zoom out.\n * This control is one of the default controls of a map. To style this control\n * use css selectors `.ol-zoom-in` and `.ol-zoom-out`.\n *\n * @api\n */\nvar Zoom = /*@__PURE__*/(function (Control) {\n function Zoom(opt_options) {\n\n var options = opt_options ? opt_options : {};\n\n Control.call(this, {\n element: document.createElement('div'),\n target: options.target\n });\n\n var className = options.className !== undefined ? options.className : 'ol-zoom';\n\n var delta = options.delta !== undefined ? options.delta : 1;\n\n var zoomInLabel = options.zoomInLabel !== undefined ? options.zoomInLabel : '+';\n var zoomOutLabel = options.zoomOutLabel !== undefined ? options.zoomOutLabel : '\\u2212';\n\n var zoomInTipLabel = options.zoomInTipLabel !== undefined ?\n options.zoomInTipLabel : 'Zoom in';\n var zoomOutTipLabel = options.zoomOutTipLabel !== undefined ?\n options.zoomOutTipLabel : 'Zoom out';\n\n var inElement = document.createElement('button');\n inElement.className = className + '-in';\n inElement.setAttribute('type', 'button');\n inElement.title = zoomInTipLabel;\n inElement.appendChild(\n typeof zoomInLabel === 'string' ? document.createTextNode(zoomInLabel) : zoomInLabel\n );\n\n listen(inElement, EventType.CLICK, this.handleClick_.bind(this, delta));\n\n var outElement = document.createElement('button');\n outElement.className = className + '-out';\n outElement.setAttribute('type', 'button');\n outElement.title = zoomOutTipLabel;\n outElement.appendChild(\n typeof zoomOutLabel === 'string' ? document.createTextNode(zoomOutLabel) : zoomOutLabel\n );\n\n listen(outElement, EventType.CLICK, this.handleClick_.bind(this, -delta));\n\n var cssClasses = className + ' ' + CLASS_UNSELECTABLE + ' ' + CLASS_CONTROL;\n var element = this.element;\n element.className = cssClasses;\n element.appendChild(inElement);\n element.appendChild(outElement);\n\n /**\n * @type {number}\n * @private\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n\n }\n\n if ( Control ) Zoom.__proto__ = Control;\n Zoom.prototype = Object.create( Control && Control.prototype );\n Zoom.prototype.constructor = Zoom;\n\n /**\n * @param {number} delta Zoom delta.\n * @param {MouseEvent} event The event to handle\n * @private\n */\n Zoom.prototype.handleClick_ = function handleClick_ (delta, event) {\n event.preventDefault();\n this.zoomByDelta_(delta);\n };\n\n /**\n * @param {number} delta Zoom delta.\n * @private\n */\n Zoom.prototype.zoomByDelta_ = function zoomByDelta_ (delta) {\n var map = this.getMap();\n var view = map.getView();\n if (!view) {\n // the map does not have a view, so we can't act\n // upon it\n return;\n }\n var currentResolution = view.getResolution();\n if (currentResolution) {\n var newResolution = view.constrainResolution(currentResolution, delta);\n if (this.duration_ > 0) {\n if (view.getAnimating()) {\n view.cancelAnimations();\n }\n view.animate({\n resolution: newResolution,\n duration: this.duration_,\n easing: easeOut\n });\n } else {\n view.setResolution(newResolution);\n }\n }\n };\n\n return Zoom;\n}(Control));\n\n\nexport default Zoom;\n\n//# sourceMappingURL=Zoom.js.map","/**\n * @module ol/control/util\n */\nimport Collection from '../Collection.js';\nimport Attribution from './Attribution.js';\nimport Rotate from './Rotate.js';\nimport Zoom from './Zoom.js';\n\n\n/**\n * @typedef {Object} DefaultsOptions\n * @property {boolean} [attribution=true] Include\n * {@link module:ol/control/Attribution~Attribution}.\n * @property {import(\"./Attribution.js\").Options} [attributionOptions]\n * Options for {@link module:ol/control/Attribution~Attribution}.\n * @property {boolean} [rotate=true] Include\n * {@link module:ol/control/Rotate~Rotate}.\n * @property {import(\"./Rotate.js\").Options} [rotateOptions] Options\n * for {@link module:ol/control/Rotate~Rotate}.\n * @property {boolean} [zoom] Include {@link module:ol/control/Zoom~Zoom}.\n * @property {import(\"./Zoom.js\").Options} [zoomOptions] Options for\n * {@link module:ol/control/Zoom~Zoom}.\n * @api\n */\n\n\n/**\n * Set of controls included in maps by default. Unless configured otherwise,\n * this returns a collection containing an instance of each of the following\n * controls:\n * * {@link module:ol/control/Zoom~Zoom}\n * * {@link module:ol/control/Rotate~Rotate}\n * * {@link module:ol/control/Attribution~Attribution}\n *\n * @param {DefaultsOptions=} opt_options\n * Defaults options.\n * @return {Collection}\n * Controls.\n * @function module:ol/control.defaults\n * @api\n */\nexport function defaults(opt_options) {\n\n var options = opt_options ? opt_options : {};\n\n var controls = new Collection();\n\n var zoomControl = options.zoom !== undefined ? options.zoom : true;\n if (zoomControl) {\n controls.push(new Zoom(options.zoomOptions));\n }\n\n var rotateControl = options.rotate !== undefined ? options.rotate : true;\n if (rotateControl) {\n controls.push(new Rotate(options.rotateOptions));\n }\n\n var attributionControl = options.attribution !== undefined ?\n options.attribution : true;\n if (attributionControl) {\n controls.push(new Attribution(options.attributionOptions));\n }\n\n return controls;\n}\n\n//# sourceMappingURL=util.js.map","/**\n * @module ol/interaction/Property\n */\n\n/**\n * @enum {string}\n */\nexport default {\n ACTIVE: 'active'\n};\n\n//# sourceMappingURL=Property.js.map","/**\n * @module ol/interaction/Interaction\n */\nimport BaseObject from '../Object.js';\nimport {easeOut, linear} from '../easing.js';\nimport InteractionProperty from './Property.js';\nimport {clamp} from '../math.js';\n\n\n/**\n * Object literal with config options for interactions.\n * @typedef {Object} InteractionOptions\n * @property {function(import(\"../MapBrowserEvent.js\").default):boolean} handleEvent\n * Method called by the map to notify the interaction that a browser event was\n * dispatched to the map. If the function returns a falsy value, propagation of\n * the event to other interactions in the map's interactions chain will be\n * prevented (this includes functions with no explicit return).\n */\n\n\n/**\n * @classdesc\n * Abstract base class; normally only used for creating subclasses and not\n * instantiated in apps.\n * User actions that change the state of the map. Some are similar to controls,\n * but are not associated with a DOM element.\n * For example, {@link module:ol/interaction/KeyboardZoom~KeyboardZoom} is\n * functionally the same as {@link module:ol/control/Zoom~Zoom}, but triggered\n * by a keyboard event not a button element event.\n * Although interactions do not have a DOM element, some of them do render\n * vectors and so are visible on the screen.\n * @api\n */\nvar Interaction = /*@__PURE__*/(function (BaseObject) {\n function Interaction(options) {\n BaseObject.call(this);\n\n if (options.handleEvent) {\n this.handleEvent = options.handleEvent;\n }\n\n /**\n * @private\n * @type {import(\"../PluggableMap.js\").default}\n */\n this.map_ = null;\n\n this.setActive(true);\n }\n\n if ( BaseObject ) Interaction.__proto__ = BaseObject;\n Interaction.prototype = Object.create( BaseObject && BaseObject.prototype );\n Interaction.prototype.constructor = Interaction;\n\n /**\n * Return whether the interaction is currently active.\n * @return {boolean} `true` if the interaction is active, `false` otherwise.\n * @observable\n * @api\n */\n Interaction.prototype.getActive = function getActive () {\n return /** @type {boolean} */ (this.get(InteractionProperty.ACTIVE));\n };\n\n /**\n * Get the map associated with this interaction.\n * @return {import(\"../PluggableMap.js\").default} Map.\n * @api\n */\n Interaction.prototype.getMap = function getMap () {\n return this.map_;\n };\n\n /**\n * Handles the {@link module:ol/MapBrowserEvent map browser event}.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @api\n */\n Interaction.prototype.handleEvent = function handleEvent (mapBrowserEvent) {\n return true;\n };\n\n /**\n * Activate or deactivate the interaction.\n * @param {boolean} active Active.\n * @observable\n * @api\n */\n Interaction.prototype.setActive = function setActive (active) {\n this.set(InteractionProperty.ACTIVE, active);\n };\n\n /**\n * Remove the interaction from its current map and attach it to the new map.\n * Subclasses may set up event handlers to get notified about changes to\n * the map here.\n * @param {import(\"../PluggableMap.js\").default} map Map.\n */\n Interaction.prototype.setMap = function setMap (map) {\n this.map_ = map;\n };\n\n return Interaction;\n}(BaseObject));\n\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {import(\"../coordinate.js\").Coordinate} delta Delta.\n * @param {number=} opt_duration Duration.\n */\nexport function pan(view, delta, opt_duration) {\n var currentCenter = view.getCenter();\n if (currentCenter) {\n var center = view.constrainCenter(\n [currentCenter[0] + delta[0], currentCenter[1] + delta[1]]);\n if (opt_duration) {\n view.animate({\n duration: opt_duration,\n easing: linear,\n center: center\n });\n } else {\n view.setCenter(center);\n }\n }\n}\n\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {number|undefined} rotation Rotation.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor Anchor coordinate.\n * @param {number=} opt_duration Duration.\n */\nexport function rotate(view, rotation, opt_anchor, opt_duration) {\n rotation = view.constrainRotation(rotation, 0);\n rotateWithoutConstraints(view, rotation, opt_anchor, opt_duration);\n}\n\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {number|undefined} rotation Rotation.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor Anchor coordinate.\n * @param {number=} opt_duration Duration.\n */\nexport function rotateWithoutConstraints(view, rotation, opt_anchor, opt_duration) {\n if (rotation !== undefined) {\n var currentRotation = view.getRotation();\n var currentCenter = view.getCenter();\n if (currentRotation !== undefined && currentCenter && opt_duration > 0) {\n view.animate({\n rotation: rotation,\n anchor: opt_anchor,\n duration: opt_duration,\n easing: easeOut\n });\n } else {\n view.rotate(rotation, opt_anchor);\n }\n }\n}\n\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {number|undefined} resolution Resolution to go to.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor Anchor coordinate.\n * @param {number=} opt_duration Duration.\n * @param {number=} opt_direction Zooming direction; > 0 indicates\n * zooming out, in which case the constraints system will select\n * the largest nearest resolution; < 0 indicates zooming in, in\n * which case the constraints system will select the smallest\n * nearest resolution; == 0 indicates that the zooming direction\n * is unknown/not relevant, in which case the constraints system\n * will select the nearest resolution. If not defined 0 is\n * assumed.\n */\nexport function zoom(view, resolution, opt_anchor, opt_duration, opt_direction) {\n resolution = view.constrainResolution(resolution, 0, opt_direction);\n zoomWithoutConstraints(view, resolution, opt_anchor, opt_duration);\n}\n\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {number} delta Delta from previous zoom level.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor Anchor coordinate.\n * @param {number=} opt_duration Duration.\n */\nexport function zoomByDelta(view, delta, opt_anchor, opt_duration) {\n var currentResolution = view.getResolution();\n var resolution = view.constrainResolution(currentResolution, delta, 0);\n\n if (resolution !== undefined) {\n var resolutions = view.getResolutions();\n resolution = clamp(\n resolution,\n view.getMinResolution() || resolutions[resolutions.length - 1],\n view.getMaxResolution() || resolutions[0]);\n }\n\n // If we have a constraint on center, we need to change the anchor so that the\n // new center is within the extent. We first calculate the new center, apply\n // the constraint to it, and then calculate back the anchor\n if (opt_anchor && resolution !== undefined && resolution !== currentResolution) {\n var currentCenter = view.getCenter();\n var center = view.calculateCenterZoom(resolution, opt_anchor);\n center = view.constrainCenter(center);\n\n opt_anchor = [\n (resolution * currentCenter[0] - currentResolution * center[0]) /\n (resolution - currentResolution),\n (resolution * currentCenter[1] - currentResolution * center[1]) /\n (resolution - currentResolution)\n ];\n }\n\n zoomWithoutConstraints(view, resolution, opt_anchor, opt_duration);\n}\n\n\n/**\n * @param {import(\"../View.js\").default} view View.\n * @param {number|undefined} resolution Resolution to go to.\n * @param {import(\"../coordinate.js\").Coordinate=} opt_anchor Anchor coordinate.\n * @param {number=} opt_duration Duration.\n */\nexport function zoomWithoutConstraints(view, resolution, opt_anchor, opt_duration) {\n if (resolution) {\n var currentResolution = view.getResolution();\n var currentCenter = view.getCenter();\n if (currentResolution !== undefined && currentCenter &&\n resolution !== currentResolution && opt_duration) {\n view.animate({\n resolution: resolution,\n anchor: opt_anchor,\n duration: opt_duration,\n easing: easeOut\n });\n } else {\n if (opt_anchor) {\n var center = view.calculateCenterZoom(resolution, opt_anchor);\n view.setCenter(center);\n }\n view.setResolution(resolution);\n }\n }\n}\n\nexport default Interaction;\n\n//# sourceMappingURL=Interaction.js.map","/**\n * @module ol/interaction/DoubleClickZoom\n */\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport Interaction, {zoomByDelta} from './Interaction.js';\n\n\n/**\n * @typedef {Object} Options\n * @property {number} [duration=250] Animation duration in milliseconds.\n * @property {number} [delta=1] The zoom delta applied on each double click.\n */\n\n\n/**\n * @classdesc\n * Allows the user to zoom by double-clicking on the map.\n * @api\n */\nvar DoubleClickZoom = /*@__PURE__*/(function (Interaction) {\n function DoubleClickZoom(opt_options) {\n Interaction.call(this, {\n handleEvent: handleEvent\n });\n\n var options = opt_options ? opt_options : {};\n\n /**\n * @private\n * @type {number}\n */\n this.delta_ = options.delta ? options.delta : 1;\n\n /**\n * @private\n * @type {number}\n */\n this.duration_ = options.duration !== undefined ? options.duration : 250;\n\n }\n\n if ( Interaction ) DoubleClickZoom.__proto__ = Interaction;\n DoubleClickZoom.prototype = Object.create( Interaction && Interaction.prototype );\n DoubleClickZoom.prototype.constructor = DoubleClickZoom;\n\n return DoubleClickZoom;\n}(Interaction));\n\n\n/**\n * Handles the {@link module:ol/MapBrowserEvent map browser event} (if it was a\n * doubleclick) and eventually zooms the map.\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} `false` to stop event propagation.\n * @this {DoubleClickZoom}\n */\nfunction handleEvent(mapBrowserEvent) {\n var stopEvent = false;\n if (mapBrowserEvent.type == MapBrowserEventType.DBLCLICK) {\n var browserEvent = /** @type {MouseEvent} */ (mapBrowserEvent.originalEvent);\n var map = mapBrowserEvent.map;\n var anchor = mapBrowserEvent.coordinate;\n var delta = browserEvent.shiftKey ? -this.delta_ : this.delta_;\n var view = map.getView();\n zoomByDelta(view, delta, anchor, this.duration_);\n mapBrowserEvent.preventDefault();\n stopEvent = true;\n }\n return !stopEvent;\n}\n\nexport default DoubleClickZoom;\n\n//# sourceMappingURL=DoubleClickZoom.js.map","/**\n * @module ol/events/condition\n */\nimport MapBrowserEventType from '../MapBrowserEventType.js';\nimport {assert} from '../asserts.js';\nimport {TRUE, FALSE} from '../functions.js';\nimport {WEBKIT, MAC} from '../has.js';\n\n\n/**\n * A function that takes an {@link module:ol/MapBrowserEvent} and returns a\n * `{boolean}`. If the condition is met, true should be returned.\n *\n * @typedef {function(this: ?, import(\"../MapBrowserEvent.js\").default): boolean} Condition\n */\n\n\n/**\n * Return `true` if only the alt-key is pressed, `false` otherwise (e.g. when\n * additionally the shift-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the alt key is pressed.\n * @api\n */\nexport var altKeyOnly = function(mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n !originalEvent.shiftKey);\n};\n\n\n/**\n * Return `true` if only the alt-key and shift-key is pressed, `false` otherwise\n * (e.g. when additionally the platform-modifier-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the alt and shift keys are pressed.\n * @api\n */\nexport var altShiftKeysOnly = function(mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n originalEvent.shiftKey);\n};\n\n\n/**\n * Return `true` if the map has the focus. This condition requires a map target\n * element with a `tabindex` attribute, e.g. `
`.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} event Map browser event.\n * @return {boolean} The map has the focus.\n * @api\n */\nexport var focus = function(event) {\n return event.target.getTargetElement() === document.activeElement;\n};\n\n\n/**\n * Return always true.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True.\n * @api\n */\nexport var always = TRUE;\n\n\n/**\n * Return `true` if the event is a `click` event, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event is a map `click` event.\n * @api\n */\nexport var click = function(mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.CLICK;\n};\n\n\n/**\n * Return `true` if the event has an \"action\"-producing mouse button.\n *\n * By definition, this includes left-click on windows/linux, and left-click\n * without the ctrl key on Macs.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} The result.\n */\nexport var mouseActionButton = function(mapBrowserEvent) {\n var originalEvent = /** @type {MouseEvent} */ (mapBrowserEvent.originalEvent);\n return originalEvent.button == 0 &&\n !(WEBKIT && MAC && originalEvent.ctrlKey);\n};\n\n\n/**\n * Return always false.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} False.\n * @api\n */\nexport var never = FALSE;\n\n\n/**\n * Return `true` if the browser event is a `pointermove` event, `false`\n * otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the browser event is a `pointermove` event.\n * @api\n */\nexport var pointerMove = function(mapBrowserEvent) {\n return mapBrowserEvent.type == 'pointermove';\n};\n\n\n/**\n * Return `true` if the event is a map `singleclick` event, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event is a map `singleclick` event.\n * @api\n */\nexport var singleClick = function(mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.SINGLECLICK;\n};\n\n\n/**\n * Return `true` if the event is a map `dblclick` event, `false` otherwise.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if the event is a map `dblclick` event.\n * @api\n */\nexport var doubleClick = function(mapBrowserEvent) {\n return mapBrowserEvent.type == MapBrowserEventType.DBLCLICK;\n};\n\n\n/**\n * Return `true` if no modifier key (alt-, shift- or platform-modifier-key) is\n * pressed.\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True only if there no modifier keys are pressed.\n * @api\n */\nexport var noModifierKeys = function(mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n !originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n !originalEvent.shiftKey);\n};\n\n\n/**\n * Return `true` if only the platform-modifier-key (the meta-key on Mac,\n * ctrl-key otherwise) is pressed, `false` otherwise (e.g. when additionally\n * the shift-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the platform modifier key is pressed.\n * @api\n */\nexport var platformModifierKeyOnly = function(mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return !originalEvent.altKey &&\n (MAC ? originalEvent.metaKey : originalEvent.ctrlKey) &&\n !originalEvent.shiftKey;\n};\n\n\n/**\n * Return `true` if only the shift-key is pressed, `false` otherwise (e.g. when\n * additionally the alt-key is pressed).\n *\n * @param {import(\"../MapBrowserEvent.js\").default} mapBrowserEvent Map browser event.\n * @return {boolean} True if only the shift key is pressed.\n * @api\n */\nexport var shiftKeyOnly = function(mapBrowserEvent) {\n var originalEvent = /** @type {KeyboardEvent|MouseEvent|TouchEvent} */ (mapBrowserEvent.originalEvent);\n return (\n !originalEvent.altKey &&\n !(originalEvent.metaKey || originalEvent.ctrlKey) &&\n originalEvent.shiftKey);\n};\n\n\n/**\n * Return `true` if the target element is not editable, i.e. not a ``-,\n * `