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mapx.html
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<!DOCTYPE html>
<html>
<head>
<title>
mapx STAR json test
</title>
<style type="text/css">
html, body, #basicMap {
margin: 0;
width: 100%;
height: 100%;
}
</style>
<script src="js/OpenLayers.js"
type="text/javascript">
</script>
<script src="js/geodesic.js"
type="text/javascript">
</script>
<script src="js/xml2json.js"
type="text/javascript">
</script>
<script type="text/javascript">
var startTime = new Date();
var map, mapnik, position, fromProjection, toProjection, markersLayer, lineLayer, circleLayer;
var labelsLayer, lowAirways, highAirways;
var star_mod4 = 'STAR/mod.mod4.json';
var star_pye6 = 'STAR/pye.goldn6.json';
var star_bsr2 = 'STAR/bsr.bsr2.json';
var star_had2 = 'STAR/bsr.hadly2.json';
var ssxml_KSFO = 'SIDSTAR/KSFO.xml';
var ssjson_KSFO = 'SIDSTAR/KSFO.json';
var xp_airways = 'data2/xp-awy.csv';
var airways = [];
var awy_found = [];
// vor and fixes painted
var vorlist = [];
var vornames = [];
var fixlist = [];
var fixnames = [];
var def_lat = 37.78756; //38.7;
var def_lon = -122.0;
//var def_lat = 37.627375;
//var def_lon = -120.95786667;
var def_zoom = 8; //11; // hard to choose then best init zoom
var curr_lat1,curr_lon1,curr_lat2,curr_lon2;
// ==============================================================================
function init(lat,lon,zoom) {
map = new OpenLayers.Map("basicMap", {
projection: new OpenLayers.Projection("EPSG:3857"),
// this sets wgs84/4326 as default for display coords
displayProjection: new OpenLayers.Projection("EPSG:4326")
});
mapnik = new OpenLayers.Layer.OSM();
fromProjection = new OpenLayers.Projection("EPSG:4326"); // Transform from WGS 1984
toProjection = new OpenLayers.Projection("EPSG:900913"); // to Spherical Mercator Projection
position = new OpenLayers.LonLat(lon,lat).transform( fromProjection, toProjection);
map.addLayer(mapnik);
// map.addControl(new OpenLayers.Control.Permalink('permalink'));
map.addControl(new OpenLayers.Control.MousePosition());
map.addControl(new OpenLayers.Control.ScaleLine());
map.addControl(new OpenLayers.Control.LayerSwitcher());
var labelStyle = new OpenLayers.Style({
externalGraphic: "images/background_trans.png",
//externalGraphic: "images/label_background.gif",
graphicWidth: "${labelWidth}",
graphicHeight: "13",
graphicOpacity: 0.99,
graphicXOffset: "${labelOffset}",
graphicYOffset: 14,
fillColor: "#000000",
fillOpacity: 0.0,
strokeWidth: 0.0,
label : "${icao}",
//fontColor: "#CCCCCC",
fontColor: "#000000",
fontSize: "11px",
fontFamily: "\"DejaVuSansMonoBold\",monospace",
fontWeight: "normal",
labelAlign: "center",
labelXOffset: "0",
labelYOffset: "-22"
});
labelsLayer = new OpenLayers.Layer.Vector("Labels Layer", {styleMap: labelStyle});
map.addLayer(labelsLayer);
markersLayer = new OpenLayers.Layer.Markers( "Marker Layer" );
map.addLayer(markersLayer);
lineLayer = new OpenLayers.Layer.Vector("Line Layer");
map.addLayer(lineLayer);
circleLayer = new OpenLayers.Layer.Vector("Circle Layer");
map.addLayer(circleLayer);
lowAirways = new OpenLayers.Layer.Vector("Low Airways");
map.addLayer(lowAirways);
highAirways = new OpenLayers.Layer.Vector("High Airways");
map.addLayer(highAirways);
markersLayer.addMarker(new OpenLayers.Marker(position));
map.setCenter(position, zoom );
setGlobalBounds();
map.events.register('zoomend', undefined, zoomChanged);
map.events.register('moveend', undefined, moveEnded);
}
function addLabel2Layer(icao, lon, lat, layer) {
var point = new OpenLayers.Geometry.Point(lon,lat).transform( fromProjection, toProjection);
var labelFeature = new OpenLayers.Feature.Vector(point);
labelFeature.id = "label"+icao;
labelFeature.attributes.icao = icao;
// This calculates label background width and offset
labelWidth = 8 * icao.length;
labelOffset = labelWidth / 2 * -1.0;
labelFeature.attributes.labelWidth = labelWidth;
labelFeature.attributes.labelOffset = labelOffset;
layer.addFeatures([labelFeature]);
return labelFeature;
}
/**
* function addLabel(icao, lon, lat);
* @param (string) ICAO to paint
* @param (number) Degree of longitude
* @param (number) Degree of latitude
* Add a label for an airport contianing ICAO
*/
function addLabel(icao, lon, lat) {
return addLabel2Layer(icao, lon, lat, labelsLayer);
}
function addFixatPos( pos ) {
var icon = new OpenLayers.Icon('images/FIX-30x30.png');
var mark = new OpenLayers.Marker(pos, icon);
markersLayer.addMarker(mark);
}
function addVoratPos( pos ) {
var icon = new OpenLayers.Icon('img/VOR-DME-50x43.gif');
var mark = new OpenLayers.Marker(pos, icon);
markersLayer.addMarker(mark);
}
function ss_paintLine( lat1, lon1, lat2, lon2, style ) {
var points = new Array(
new OpenLayers.Geometry.Point(lon1,lat1).transform( fromProjection, toProjection ),
new OpenLayers.Geometry.Point(lon2,lat2).transform( fromProjection, toProjection )
);
var line = new OpenLayers.Geometry.LineString(points);
var lineFeat = new OpenLayers.Feature.Vector(line, null, style);
lineLayer.addFeatures([lineFeat]);
}
function ss_putLine4( lat1, lon1, lat2, lon2 ) {
var blk_style = {
strokeColor: '#000000',
strokeOpacity: 0.5,
strokeWidth: 4,
fill: false
};
ss_paintLine( lat1, lon1, lat2, lon2, blk_style );
}
function ss_putLine2( lat1, lon1, lat2, lon2 ) {
var blk_style = {
strokeColor: '#000000',
strokeOpacity: 0.5,
strokeWidth: 2,
fill: false
};
ss_paintLine( lat1, lon1, lat2, lon2, blk_style );
}
function ss_putLine1( lat1, lon1, lat2, lon2 ) {
var blk_style = {
strokeColor: '#000000',
strokeOpacity: 0.5,
strokeWidth: 1,
fill: false
};
ss_paintLine( lat1, lon1, lat2, lon2, blk_style );
}
function paintSTAR( lat1, lon1, lat2, lon2 ) {
var dist = 2.0;
ss_putLine2( lat1, lon1, lat2, lon2 );
//console.log("Line2: "+lat1+","+lon1+" to "+lat2+","+lon2 );
var brng = getBearing(lat1,lon1,lat2,lon2);
//console.log("Bearing "+brng+" from "+lat1+','+lon1+" to "+lat2+','+lon2);
var b1, p1, p2;
b1 = brng - 90.0;
if (b1 < 0) b1 += 360.0;
p1 = getDirect(lat1,lon1,b1,dist);
p2 = getDirect(lat2,lon2,b1,dist);
ss_putLine1( p1._lat, p1._lon, p2._lat, p2._lon );
//console.log("Line1: "+p1._lat+","+p1._lon+" to "+p2._lat+","+p2._lon );
b1 -= 180.0;
if (b1 < 0) b1 += 360.0;
p1 = getDirect(lat1,lon1,b1,dist);
p2 = getDirect(lat2,lon2,b1,dist);
ss_putLine1( p1._lat, p1._lon, p2._lat, p2._lon );
//console.log("Line1: "+p1._lat+","+p1._lon+" to "+p2._lat+","+p2._lon );
}
function paintSTARs( pos ) {
var len = pos.length;
var i, lat1, lon1, lat2, lon2;
if (len < 2)
return;
for (i = 1; i < len; i++) {
lat1 = pos[i-1]._lat;
lon1 = pos[i-1]._lon;
lat2 = pos[i]._lat;
lon2 = pos[i]._lon;
paintSTAR( lat1, lon1, lat2, lon2 );
}
}
function valInArray(s,a ) {
var i, t;
var max = a.length;
for (i = 0; i < max; i++) {
t = a[i];
if ( s == t )
return true;
}
return false;
}
function paintFixes(fixlist,fixnames) {
var max = fixlist.length;
var i,ll,name,pos,point,circle,feat;
var fix_style = {
strokeColor: '#004000',
strokeOpacity: 0.5,
strokeWidth: 2,
fill: false };
for (i = 0; i < max; i++) {
ll = fixlist[i];
pos = new OpenLayers.LonLat(ll._lon,ll._lat).transform( fromProjection, toProjection);
// put a green circle
point = new OpenLayers.Geometry.Point(pos.lon, pos.lat);
circle = OpenLayers.Geometry.Polygon.createRegularPolygon(point,6000,20,0 );
feat = new OpenLayers.Feature.Vector(circle, null, fix_style);
circleLayer.addFeatures([feat]);
name = fixnames[i];
addLabel(name, ll._lon, ll._lat);
addFixatPos(pos); // FIX
}
}
function paintVors(vorlist,vornames) {
var max = vorlist.length;
var i,ll,name,pos;
for (i = 0; i < max; i++) {
ll = vorlist[i];
name = vornames[i];
addLabel(name, ll._lon, ll._lat);
pos = new OpenLayers.LonLat(ll._lon,ll._lat).transform( fromProjection, toProjection);
addVoratPos(pos); // VOR
}
}
function callbackSTAR() {
if ((this.readyState == 4) && (this.status == "200")) {
var text,data;
var ok = false;
text = this.responseText;
data = JSON.parse(text);
//console.log(text);
var compos;
if (data.transitions && data.VORS && data.FIXES && data.common) {
var i,j,k,lat,lon,com,cnod,cll,ll,nod,typ,vor,fix,clat,clon,i2;
var vora = data.VORS;
var voral = vora.length;
var fixa = data.FIXES;
var fixal = fixa.length;
var coma = data.common;
var comal = coma.length;
if (comal) {
ok = true;
com = coma[0]; // get first common
cnod = com.N;
typ = com.T;
if (typ == 'vor') {
for (k = 0; k < voral; k++) {
vor = vora[k];
if (vor.N == cnod) {
clat = vor.lat;
clon = vor.lon;
cll = new LatLon(clat,clon);
//cpos = new OpenLayers.LonLat(clon,clat).transform( fromProjection, toProjection );
//console.log("com1: "+typ+" "+cnod+" "+clat+","+clon+" pos: "+cpos.lat+','+cpos.lon);
console.log("com1: "+typ+" "+cnod+" "+clat+","+clon);
vornames.push(cnod);
vorlist.push(cll);
break;
}
}
if (k >= voral) {
ok = false;
console.log("Failed to find 'vor' "+nod);
}
} else if (typ == 'fix') {
for (k = 0; k < fixal; k++) {
fix = fixa[k];
if (fix.N == cnod) {
clat = fix.lat;
clon = fix.lon;
cll = new LatLon(clat,clon);
console.log("com1: "+typ+" "+cnod+" "+clat+","+clon);
fixnames.push(cnod);
fixlist.push(cll);
break;
}
}
if (k >= fixal) {
ok = false;
console.log("Failed to find 'fix' "+nod);
}
} else {
console.log("First 'common' no 'vor nor 'fix'");
ok = false;
}
} else {
console.log("No 'common' array");
return;
}
if (!ok)
return;
// array of transition, usually a VOR
var tras = data.transitions;
var trl = tras.length;
console.log("Got "+trl+" transition arrays");
var positions = [];
for (i = 0; i < trl; i++) {
var trao = tras[i];
var tra = trao.TRANS;
var tral = tra.length;
console.log("Got "+tral+" transitions");
for (j = 0; j < tral; j++) {
var tr = tra[j];
nod = tr.N;
typ = tr.T;
if (typ == 'vor') {
// getVORPos(vor,pos); // get VOR location
for (k = 0; k < voral; k++) {
vor = vora[k];
if (vor.N == nod) {
lat = vor.lat;
lon = vor.lon;
ll = new LatLon(lat,lon);
console.log("VOR: "+nod+" "+lat+","+lon);
if (!valInArray(nod,vornames)) {
vornames.push(nod);
vorlist.push(ll);
}
break;
}
}
if (k < voral) {
positions.push(ll);
} else {
ok = false;
console.log("Failed to find 'vor' "+nod);
}
} else if (typ == 'fix') {
// get FIX location
for (k = 0; k < fixal; k++) {
var fix = fixa[k];
if (fix.N == nod) {
lat = fix.lat;
lon = fix.lon;
ll = new LatLon(lat,lon);
console.log("FIX: "+nod+" "+lat+","+lon);
if (!valInArray(nod,fixnames)) {
fixnames.push(nod);
fixlist.push(ll);
}
break;
}
}
if (k < fixal) {
positions.push(ll);
} else {
ok = false;
console.log("Failed to find 'fix' "+nod);
}
} else if (typ == 'com') {
positions.push(cll);
console.log("COM: "+nod+" "+clat+","+clon);
}
if (!ok) break;
}
if (!ok) break;
// paint track in positions
paintSTARs( positions );
positions = [];
}
if (!ok) return;
// finally paint 'common'
console.log("Paint final "+comal+" common paths, from "+clat+','+clon);
positions = [];
for (i = 0; i < comal; i++) {
i2 = i + 1;
com = coma[i]; // get next common
nod = com.N;
typ = com.T;
if (typ == 'vor') {
for (k = 0; k < voral; k++) {
vor = vora[k];
if (vor.N == nod) {
lat = vor.lat;
lon = vor.lon;
ll = new LatLon(lat,lon);
console.log("#"+i2+" VOR: "+nod+" "+lat+","+lon);
if (!valInArray(nod,vornames)) {
vornames.push(nod);
vorlist.push(ll);
}
break;
}
}
if (k >= voral) {
ok = false;
console.log("Failed to find 'vor' "+nod);
}
} else if (typ == 'fix') {
for (k = 0; k < fixal; k++) {
fix = fixa[k];
if (fix.N == nod) {
lat = fix.lat;
lon = fix.lon;
ll = new LatLon(lat,lon);
console.log("#"+i2+" FIX: "+nod+" "+lat+","+lon);
if (!valInArray(nod,fixnames)) {
fixnames.push(nod);
fixlist.push(ll);
}
break;
}
}
if (k >= fixal) {
ok = false;
console.log("Failed to find 'fix' "+nod);
}
} else {
console.log("'common' NOT 'vor nor 'fix'");
ok = false;
}
if (!ok) break;
positions.push(ll);
}
if (!ok) return;
paintSTARs( positions );
// add the navaids
paintFixes(fixlist,fixnames);
paintVors(vorlist,vornames);
console.log("Successful end of paint");
} else {
console.log("STAR failed - object missing items");
}
}
}
function isArray(o) {
return Object.prototype.toString.apply(o) === '[object Array]';
}
function parseNode(xmlNode, result) {
if(xmlNode.nodeName == "#text" && xmlNode.nodeValue.trim() == "") {
return;
}
var i;
var jsonNode = {};
var existing = result[xmlNode.nodeName];
if(existing) {
if(!isArray(existing)) {
result[xmlNode.nodeName] = [existing, jsonNode];
} else {
result[xmlNode.nodeName].push(jsonNode);
}
} else {
if(xmlNode.arrayTags && (xmlNode.arrayTags.indexOf(xmlNode.nodeName) != -1)) {
result[xmlNode.nodeName] = [jsonNode];
} else {
result[xmlNode.nodeName] = jsonNode;
}
}
if(xmlNode.attributes) {
var length = xmlNode.attributes.length;
for(i = 0; i < length; i++) {
var attribute = xmlNode.attributes[i];
jsonNode[attribute.nodeName] = attribute.nodeValue;
}
}
var length = xmlNode.childNodes.length;
for(i = 0; i < length; i++) {
parseNode(xmlNode.childNodes[i], jsonNode);
}
}
function callbackSSXML() {
if ((this.readyState == 4) && (this.status == "200")) {
var result = {};
var text,xmlDoc,xml,json,data;
var ok = false;
text = this.responseText;
if (this.responseXML) {
xml = this.responseXML;
if (xml.childNodes && xml.childNodes.length) {
console.log("Have xml.childNodes.length = "+xml.childNodes.length);
//parseNode(xml.childNodes[0], result);
try {
json = xml2json(xml);
// json.replace("undefined","");
try {
data = JSON.parse(json);
console.log("Done ICAO xml2json");
} catch(err) {
console.log("JSON.parse failed: "+err.message);
console.log(json);
}
} catch(err) {
console.log("ICAO xml2json failed: "+err.message);
}
}
}
if (window.DOMParser) {
var parser = new DOMParser();
xmlDoc = parser.parseFromString(text,"text/xml");
} else {
// Internet Explorer
xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async=false;
xmlDoc.loadXML(text);
}
if(xmlDoc.childNodes.length) {
console.log("Got childNodes len " + xmlDoc.childNodes.length);
/* xml2json FAILS to give valid JSON!!!
try {
json = xml2json(xmlDoc);
json.replace("undefined","");
try {
data = JSON.parse(json);
console.log("Done ICAO xml2json");
} catch(err) {
console.log("JSON.parse failed: "+err.message);
console.log(json);
}
} catch(err) {
console.log("ICAO xml2json failed: "+err.message);
}
========================================= */
/* all this FAILED as well
parseNode(xmlDoc.childNodes[0], result);
if (result && result.ProceduresDB) {
if (isArray(result.ProceduresDB)) {
console.log("Got result ProceduresDB array");
} else {
var sido,appa,stara;
console.log("Got result ProceduresDB object");
var proco = result.ProceduresDB;
if (proco.build) {
console.log("build: "+proco.build);
}
if (proco.Airport) {
var i, j, wpo, wpl, lato, lono, wpa, tmp;
var apo = proco.Airport;
if (apo.Sid) {
sido = apo.Sid;
}
if (apo.Approach) {
appa = apo.Approach;
}
if (apo.Star) {
stara = apo.Star;
if (stara.length) {
var len = stara.length;
for (i = 0; i < len; i++) {
var staro = stara[i];
if (staro.Star_Waypoint && staro.Star_Waypoint.length) {
wpl = staro.Star_Waypoint.length;
wpa = staro.Star_Waypoint;
for (j = 0; j < wpl; j++) {
wpo = wpa[j];
//var ID = wpo.ID;
lato = wpo.Latitude;
//tmp = lato.toString(); // [object object]
//tmp = lato.get(); // fails
tmp = lato.valueOf();
lono = wpo.Longitude;
}
}
}
}
}
}
}
} else {
console.log("No result.ProceduresDB");
}
========================================= */
console.log("Done XML doc");
} else {
console.log("No xmlDoc.childNodes.length");
}
}
}
function paintAFix(name,lat,lon) {
var pos,point,circle,feat;
var fix_style = {
strokeColor: '#004000',
strokeOpacity: 0.5,
strokeWidth: 2,
fill: false };
pos = new OpenLayers.LonLat(lon,lat).transform( fromProjection, toProjection);
// put a green circle
point = new OpenLayers.Geometry.Point(pos.lon, pos.lat);
circle = OpenLayers.Geometry.Polygon.createRegularPolygon(point,6000,20,0 );
feat = new OpenLayers.Feature.Vector(circle, null, fix_style);
circleLayer.addFeatures([feat]);
addLabel(name, lon, lat);
addFixatPos(pos); // FIX
}
function paintICAOStar(sobj) {
var i,wpa,wpl,msg,wp,nm,lat,lon,typ,pos,lat1,lon1;
var done = [];
for (i in sobj) {
wpa = sobj[i];
wpl = wpa.length;
msg = i+' -> ';
for (j = 0; j < wpl; j++) {
wp = wpa[j];
// 0 1 2 3 4 5
//wp.push( [nm,typ,alt,lat,lon,spd] );
nm = wp[0];
typ = wp[1];
lat = wp[3];
lon = wp[4];
msg += nm+' ';
if (j) {
paintSTAR( lat1, lon1, lat, lon );
}
if (!valInArray(nm,done)) {
done.push(nm);
pos = new OpenLayers.LonLat(lon,lat).transform( fromProjection, toProjection);
if (nm.length == 3) {
addLabel(nm, lon, lat);
addVoratPos(pos); // VOR
} else {
paintAFix(nm,lat,lon);
//addFixatPos(pos); // FIX
}
}
lat1 = lat;
lon1 = lon;
}
console.log(msg);
}
}
function callbackSSJSON() {
if ((this.readyState == 4) && (this.status == "200")) {
var text,data,proo,airo,appa,sido,stara,alen,i,name,staro,wpa,wpl,j,wpo;
var alt,nm,lat,lon,spd,msg,wp;
var chcnt = 0;
var dmecnt = 0;
var holdcnt = 0;
var intcnt = 0;
var normcnt = 0;
var veccnt = 0;
var othcnt = 0;
var ok = false;
var cnt = 0;
var names = '';
var wpoints = '';
var starsobj = {};
text = this.responseText;
data = JSON.parse(text);
if (data.ProceduresDB) {
proo = data.ProceduresDB;
if (proo.build) {
console.log("build: "+proo.build);
}
if (proo.Airport) {
airo = proo.Airport;
if (airo.Approach) {
appa = airo.Approach;
cnt++;
}
if (airo.Sid) {
sido = airo.Sid;
cnt++;
}
if (airo.Star) {
stara = airo.Star;
alen = stara.length;
for (i = 0; i < alen; i++) {
staro = stara[i];
name = staro.Name;
names += name+' ';
wpa = staro.Star_Waypoint;
wpl = wpa.length;
var waypoints = [];
for (j = 0; j < wpl; j++) {
wpo = wpa[j];
typ = wpo.Type;
nm = wpo.Name;
wpoints += nm+' ';
alt = parseInt(wpo.Altitude);
lat = parseFloat(wpo.Latitude);
lon = parseFloat(wpo.Longitude);
spd = parseInt(wpo.Speed);
waypoints.push( [nm,typ,alt,lat,lon,spd] );
if (typ == 'ConstHdgtoAlt') {
chcnt++;
} else if (typ == 'DmeIntc') {
dmecnt++;
} else if (typ == 'Hold') {
holdcnt++;
} else if (typ == 'Intc') {
intcnt++;
} else if (typ == 'Normal') {
normcnt++;
} else if (typ == 'Vectors') {
veccnt++;
} else {
othcnt++;
}
}
starsobj[name] = waypoints;
}
cnt++;
}
}
}
if (cnt == 3) {
msg = "Got sid/star json";
msg += " ch="+chcnt;
msg += " dme="+dmecnt;
msg += " hold="+holdcnt;
msg += " int="+intcnt;
msg += " norm="+normcnt;
msg += " vec="+veccnt;
msg += " oth="+othcnt;
console.log(msg);
console.log(names);
console.log(wpoints);
paintICAOStar(starsobj);
}
}
}
function searchAirways( lat1, lon1, lat2, lon2 ) {
var max = airways.length;
// 0 1 2 3 4 5 6 7 8
var Name,BgnInt,blat,blon,EndInt,elat,elon,HL,Base,Top;
var i,awy;
// R464,00MKK,22.528056,-156.170961,BITTA,23.528031,-155.478836,1,012,460
for (i = 0; i < max; i++) {
awy = airways[i];
blat = parseFloat(awy[2]);
blon = parseFloat(awy[3]);
if ((blat <= lat1)&&(blat >= lat2)&&
(blon >= lon1)&&(blon <= lon2)) {
awy_found.push(awy);
} else {
elat = parseFloat(awy[5]);
elon = parseFloat(awy[6]);
if ((elat <= lat1)&&(elat >= lat2)&&
(elon >= lon1)&&(elon <= lon2)) {
awy_found.push(awy);
}
}
}
return awy_found;
}
function awy_putLine( lat1, lon1, lat2, lon2, HL ) {
var points = new Array(
new OpenLayers.Geometry.Point(lon1,lat1).transform( fromProjection, toProjection ),
new OpenLayers.Geometry.Point(lon2,lat2).transform( fromProjection, toProjection )
);
var line = new OpenLayers.Geometry.LineString(points);
if (HL == 2) {
var high_style = {
strokeColor: '#ff00ff',
strokeOpacity: 0.3,
strokeWidth: 1,
fill: false
};
var lineFeat = new OpenLayers.Feature.Vector(line, null, high_style);
highAirways.addFeatures([lineFeat]);
} else {
var low_style = {
strokeColor: '#ff8000',
strokeOpacity: 0.3,
strokeWidth: 1,
fill: false
};
var lineFeat = new OpenLayers.Feature.Vector(line, null, low_style);
lowAirways.addFeatures([lineFeat]);
}
}
function awy_putLines( lat1, lon1, lat2, lon2, HL ) {
var dist = 4.0;
var brng = getBearing(lat1,lon1,lat2,lon2);
//console.log("Bearing "+brng+" from "+lat1+','+lon1+" to "+lat2+','+lon2);
var b1, p1, p2;
b1 = brng - 90.0;
if (b1 < 0) b1 += 360.0;
p1 = getDirect(lat1,lon1,b1,dist);
p2 = getDirect(lat2,lon2,b1,dist);
awy_putLine( p1._lat, p1._lon, p2._lat, p2._lon, HL );
//console.log("Line1: "+p1._lat+","+p1._lon+" to "+p2._lat+","+p2._lon );
b1 -= 180.0;
if (b1 < 0) b1 += 360.0;
p1 = getDirect(lat1,lon1,b1,dist);
p2 = getDirect(lat2,lon2,b1,dist);
awy_putLine( p1._lat, p1._lon, p2._lat, p2._lon, HL );
//console.log("Line1: "+p1._lat+","+p1._lon+" to "+p2._lat+","+p2._lon );
}
function paintAirways() {
var max = awy_found.length;
// 0 1 2 3 4 5 6 7 8
var Name,BgnInt,blat,blon,EndInt,elat,elon,HL,Base,Top;
var i,awy;
for (i = 0; i < max; i++) {
awy = awy_found[i];
blat = parseFloat(awy[2]);
blon = parseFloat(awy[3]);
elat = parseFloat(awy[5]);
elon = parseFloat(awy[6]);
HL = parseInt(awy[7]);
awy_putLines( blat, blon, elat, elon, HL );
}
}
function callbackXPCSV() {
if ((this.readyState == 4) && (this.status == "200")) {
var text = this.responseText;
var dataLines = text.split(/\r\n|\n/);
var max = dataLines.length;
var separator = ',';
for ( var i = 1; i < max; i++ ) {
airways.push( dataLines[i].split( separator ) );
}
max = airways.length;
var awya = searchAirways( curr_lat1, curr_lon1, curr_lat2, curr_lon2 );
paintAirways();
var d = new Date();
var ms = d.valueOf() - startTime.valueOf();
console.log( 'Loaded airways '+max+', found '+awya.length+' in '+ms+' ms');
requestFile( ssjson_KSFO, callbackSSJSON );
}
}
function getSTARS() {
//requestFile( star_mod4, callbackSTAR );
//requestFile( star_pye6, callbackSTAR );
//requestFile( star_bsr2, callbackSTAR );
//requestFile( star_had2, callbackSTAR );
//requestFile( ssxml_KSFO, callbackSSXML );
//requestFile( ssjson_KSFO, callbackSSJSON );
requestFile( xp_airways, callbackXPCSV );
}
/**
* function requestFile( fname, callback );
* @param (string) File name to load
* @param (function) Callback funtion on state change
* ========== load data files ========
*/
function requestFile( fname, callback ) {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open( 'GET', fname, true );
xmlhttp.onreadystatechange = callback;
xmlhttp.send( null );
}
// =======================================================
// EVENTS
/**
* function setGlobalBounds()
* Get current 'extent' of the map
*/
function setGlobalBounds() {
curr_zoom = map.getZoom();
var ext = map.getExtent();
//var stg = ext.toBBOX();
var mlat,mlon,width,height,uwid,uht;
var left = ext.left;
var top = ext.top;
var right = ext.right;
var bott = ext.bottom;
uwid = right - left;
uht = bott - top;
var tl = new OpenLayers.LonLat(left,top).transform( toProjection, fromProjection );
var br = new OpenLayers.LonLat(right,bott).transform( toProjection, fromProjection );
var lat1 = tl.lat;
var lon1 = tl.lon;
var lat2 = br.lat;
var lon2 = br.lon;
// set GLOBAL screen bounds - as EPSG:4326, WGS-84 (World Geodetic System)
curr_lat1 = lat1;
curr_lon1 = lon1;
curr_lat2 = lat2;
curr_lon2 = lon2;
mlat = (lat1 + lat2) / 2;
mlon = (lon1 + lon2) / 2;
width = getDistance( mlat, lon1, mlat, lon2 );
height = getDistance( lat1, mlon, lat2, mlon );
console.log("Bounds: TL="+lat1.toFixed(2)+","+lon1.toFixed(2)+
" BR="+lat2.toFixed(2)+","+lon2.toFixed(2)+
" w="+width.toFixed(1)+" h="+height.toFixed(1)+
" km u "+uwid.toFixed(1)+","+uht.toFixed(1)+
" z="+curr_zoom);
}
function processChange(evt) {
setGlobalBounds(); // establish BOUND of current map
}
function zoomChanged() {
processChange(1);
}
// sometimes can have 2 or more of these...
function moveEnded() {
processChange(2);
}
</script>
</head>
<body>
<div id="basicMap">
</div>
<script type="text/javascript"
defer="defer">
function gup2( name, def ) {
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return def;
return results[1];
}
var lat = gup2('lat',def_lat);
var lon = gup2('lon',def_lon);
var zoom = gup2('zoom',def_zoom);
init(lat,lon,zoom);
getSTARS();
</script>
</body>
</html>