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metagraphdx.cpp
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// SPDX-FileCopyrightText: 2000-2010 University College London, Alasdair Turner
// SPDX-FileCopyrightText: 2011-2012 Tasos Varoudis
// SPDX-FileCopyrightText: 2024 Petros Koutsolampros
//
// SPDX-License-Identifier: GPL-3.0-or-later
// The meta graph
#include "metagraphdx.h"
#include "salalib/agents/agentanalysis.h"
#include "salalib/alllinemap.h"
#include "salalib/axialmodules/axialintegration.h"
#include "salalib/axialmodules/axiallocal.h"
#include "salalib/axialmodules/axialstepdepth.h"
#include "salalib/importutils.h"
#include "salalib/isovist.h"
#include "salalib/isovistutils.h"
#include "salalib/mapconverter.h"
#include "salalib/metagraphreadwrite.h"
#include "salalib/segmmodules/segmangular.h"
#include "salalib/segmmodules/segmmetric.h"
#include "salalib/segmmodules/segmmetricpd.h"
#include "salalib/segmmodules/segmtopological.h"
#include "salalib/segmmodules/segmtopologicalpd.h"
#include "salalib/segmmodules/segmtulip.h"
#include "salalib/segmmodules/segmtulipdepth.h"
#include "salalib/vgamodules/vgaangular.h"
#include "salalib/vgamodules/vgaangulardepth.h"
#include "salalib/vgamodules/vgaisovist.h"
#include "salalib/vgamodules/vgametric.h"
#include "salalib/vgamodules/vgametricdepth.h"
#include "salalib/vgamodules/vgametricdepthlinkcost.h"
#include "salalib/vgamodules/vgathroughvision.h"
#include "salalib/vgamodules/vgavisualglobal.h"
#include "salalib/vgamodules/vgavisualglobaldepth.h"
#include "salalib/vgamodules/vgavisuallocal.h"
#include "salalib/genlib/comm.h"
#include <sstream>
#include <tuple>
MetaGraphDX::MetaGraphDX(std::string name)
: m_state(0), m_viewClass(DX_VIEWNONE), m_showGrid(false), m_showText(false) {
m_metaGraph.name = name;
m_metaGraph.version = -1; // <- if unsaved, file version is -1
// whether or not showing text / grid saved with file:
// bsp tree for making isovists:
m_bspNodeTree = BSPNodeTree();
}
bool MetaGraphDX::setViewClass(int command) {
if (command < 0x10) {
throw("Use with a show command, not a view class type");
}
if ((command & (DX_SHOWHIDEVGA | DX_SHOWVGATOP)) && (~m_state & DX_POINTMAPS))
return false;
if ((command & (DX_SHOWHIDEAXIAL | DX_SHOWAXIALTOP)) && (~m_state & DX_SHAPEGRAPHS))
return false;
if ((command & (DX_SHOWHIDESHAPE | DX_SHOWSHAPETOP)) && (~m_state & DX_DATAMAPS))
return false;
switch (command) {
case DX_SHOWHIDEVGA:
if (m_viewClass & (DX_VIEWVGA | DX_VIEWBACKVGA)) {
m_viewClass &= ~(DX_VIEWVGA | DX_VIEWBACKVGA);
if (m_viewClass & DX_VIEWBACKAXIAL) {
m_viewClass ^= (DX_VIEWAXIAL | DX_VIEWBACKAXIAL);
} else if (m_viewClass & DX_VIEWBACKDATA) {
m_viewClass ^= (DX_VIEWDATA | DX_VIEWBACKDATA);
}
} else if (m_viewClass & (DX_VIEWAXIAL | DX_VIEWDATA)) {
m_viewClass &= ~(DX_VIEWBACKAXIAL | DX_VIEWBACKDATA);
m_viewClass |= DX_VIEWBACKVGA;
} else {
m_viewClass |= DX_VIEWVGA;
}
break;
case DX_SHOWHIDEAXIAL:
if (m_viewClass & (DX_VIEWAXIAL | DX_VIEWBACKAXIAL)) {
m_viewClass &= ~(DX_VIEWAXIAL | DX_VIEWBACKAXIAL);
if (m_viewClass & DX_VIEWBACKVGA) {
m_viewClass ^= (DX_VIEWVGA | DX_VIEWBACKVGA);
} else if (m_viewClass & DX_VIEWBACKDATA) {
m_viewClass ^= (DX_VIEWDATA | DX_VIEWBACKDATA);
}
} else if (m_viewClass & (DX_VIEWVGA | DX_VIEWDATA)) {
m_viewClass &= ~(DX_VIEWBACKVGA | DX_VIEWBACKDATA);
m_viewClass |= DX_VIEWBACKAXIAL;
} else {
m_viewClass |= DX_VIEWAXIAL;
}
break;
case DX_SHOWHIDESHAPE:
if (m_viewClass & (DX_VIEWDATA | DX_VIEWBACKDATA)) {
m_viewClass &= ~(DX_VIEWDATA | DX_VIEWBACKDATA);
if (m_viewClass & DX_VIEWBACKVGA) {
m_viewClass ^= (DX_VIEWVGA | DX_VIEWBACKVGA);
} else if (m_viewClass & DX_VIEWBACKAXIAL) {
m_viewClass ^= (DX_VIEWAXIAL | DX_VIEWBACKAXIAL);
}
} else if (m_viewClass & (DX_VIEWVGA | DX_VIEWAXIAL)) {
m_viewClass &= ~(DX_VIEWBACKVGA | DX_VIEWBACKAXIAL);
m_viewClass |= DX_VIEWBACKDATA;
} else {
m_viewClass |= DX_VIEWDATA;
}
break;
case DX_SHOWVGATOP:
if (m_viewClass & DX_VIEWAXIAL) {
m_viewClass = DX_VIEWBACKAXIAL | DX_VIEWVGA;
} else if (m_viewClass & DX_VIEWDATA) {
m_viewClass = DX_VIEWBACKDATA | DX_VIEWVGA;
} else {
m_viewClass = DX_VIEWVGA | (m_viewClass & (DX_VIEWBACKAXIAL | DX_VIEWBACKDATA));
}
break;
case DX_SHOWAXIALTOP:
if (m_viewClass & DX_VIEWVGA) {
m_viewClass = DX_VIEWBACKVGA | DX_VIEWAXIAL;
} else if (m_viewClass & DX_VIEWDATA) {
m_viewClass = DX_VIEWBACKDATA | DX_VIEWAXIAL;
} else {
m_viewClass = DX_VIEWAXIAL | (m_viewClass & (DX_VIEWBACKVGA | DX_VIEWBACKDATA));
}
break;
case DX_SHOWSHAPETOP:
if (m_viewClass & DX_VIEWVGA) {
m_viewClass = DX_VIEWBACKVGA | DX_VIEWDATA;
} else if (m_viewClass & DX_VIEWAXIAL) {
m_viewClass = DX_VIEWBACKAXIAL | DX_VIEWDATA;
} else {
m_viewClass = DX_VIEWDATA | (m_viewClass & (DX_VIEWBACKVGA | DX_VIEWBACKAXIAL));
}
break;
}
return true;
}
double MetaGraphDX::getLocationValue(const Point2f &point) {
// this varies according to whether axial or vga information is displayed on
// top
double val = -2;
if (viewingProcessedPoints()) {
val = getDisplayedPointMap().getLocationValue(point);
} else if (viewingProcessedLines()) {
val = getDisplayedShapeGraph().getLocationValue(point);
} else if (viewingProcessedShapes()) {
val = getDisplayedDataMap().getLocationValue(point);
}
return val;
}
bool MetaGraphDX::setGrid(double spacing, const Point2f &offset) {
m_state &= ~DX_POINTMAPS;
getDisplayedPointMap().getInternalMap().setGrid(spacing, offset);
getDisplayedPointMap().setDisplayedAttribute(-2);
m_state |= DX_POINTMAPS;
// just reassert that we should be viewing this (since set grid is essentially
// a "new point map")
setViewClass(DX_SHOWVGATOP);
return true;
}
// AV TV // semifilled
bool MetaGraphDX::makePoints(const Point2f &p, int fillType, Communicator *communicator) {
// m_state &= ~POINTS;
try {
std::vector<Line4f> lines = getShownDrawingFilesAsLines();
getDisplayedPointMap().getInternalMap().blockLines(lines);
getDisplayedPointMap().getInternalMap().makePoints(p, fillType, communicator);
getDisplayedPointMap().setDisplayedAttribute(-2);
} catch (Communicator::CancelledException) {
// By this stage points almost certainly exist,
// To avoid problems, just say points exist:
m_state |= DX_POINTMAPS;
return false;
}
// m_state |= POINTS;
return true;
}
bool MetaGraphDX::clearPoints() {
bool bReturn = getDisplayedPointMap().clearPoints();
return bReturn;
}
bool MetaGraphDX::hasVisibleDrawingShapes() {
// tries to find at least one visible shape
for (const auto &pixelGroup : m_drawingFiles) {
for (const auto &pixel : pixelGroup.maps) {
if (pixel.isShown() && !pixel.getAllShapes().empty()) {
return true;
}
}
}
return false;
}
std::vector<std::pair<std::reference_wrapper<const ShapeMapDX>, int>>
MetaGraphDX::getShownDrawingMaps() {
std::vector<std::pair<std::reference_wrapper<const ShapeMapDX>, int>> maps;
for (const auto &pixelGroup : m_drawingFiles) {
int j = 0;
for (const auto &pixel : pixelGroup.maps) {
// chooses the first editable layer it can find:
if (pixel.isShown()) {
maps.push_back(std::make_pair(std::ref(pixel), j));
}
j++;
}
}
return maps;
}
std::vector<std::pair<std::reference_wrapper<const ShapeMap>, int>> MetaGraphDX::getAsInternalMaps(
std::vector<std::pair<std::reference_wrapper<const ShapeMapDX>, int>> maps) {
std::vector<std::pair<std::reference_wrapper<const ShapeMap>, int>> internalMaps;
internalMaps.reserve(maps.size());
std::transform(maps.begin(), maps.end(), std::back_inserter(internalMaps),
[](std::pair<std::reference_wrapper<const ShapeMapDX>, int> &map) {
return std::make_pair(std::ref(map.first.get().getInternalMap()),
map.second);
});
return internalMaps;
}
std::vector<Line4f> MetaGraphDX::getShownDrawingFilesAsLines() {
std::vector<Line4f> lines;
auto shownMaps = getShownDrawingMaps();
for (const auto &map : shownMaps) {
std::vector<SimpleLine> newLines =
map.first.get().getInternalMap().getAllShapesAsSimpleLines();
for (const auto &line : newLines) {
lines.emplace_back(line.start(), line.end());
}
}
return lines;
}
std::vector<SalaShape> MetaGraphDX::getShownDrawingFilesAsShapes() {
std::vector<SalaShape> shapes;
auto shownMaps = getShownDrawingMaps();
for (const auto &map : shownMaps) {
auto refShapes = map.first.get().getInternalMap().getAllShapes();
for (const auto &refShape : refShapes) {
shapes.push_back(refShape.second);
}
}
return shapes;
}
bool MetaGraphDX::makeGraph(Communicator *communicator, int algorithm, double maxdist) {
// this is essentially a version tag, and remains for historical reasons:
m_state |= DX_ANGULARGRAPH;
bool graphMade = false;
try {
std::vector<Line4f> lines = getShownDrawingFilesAsLines();
getDisplayedPointMap().getInternalMap().blockLines(lines);
// algorithm is now used for boundary graph option (as a simple boolean)
graphMade = getDisplayedPointMap().getInternalMap().sparkGraph2(communicator,
(algorithm != 0), maxdist);
getDisplayedPointMap().setDisplayedAttribute(PointMap::Column::CONNECTIVITY);
} catch (Communicator::CancelledException) {
graphMade = false;
}
if (graphMade) {
setViewClass(DX_SHOWVGATOP);
}
return graphMade;
}
bool MetaGraphDX::unmakeGraph(bool removeLinks) {
bool graphUnmade = getDisplayedPointMap().getInternalMap().unmake(removeLinks);
getDisplayedPointMap().setDisplayedAttribute(-2);
if (graphUnmade) {
setViewClass(DX_SHOWVGATOP);
}
return graphUnmade;
}
bool MetaGraphDX::analyseGraph(Communicator *communicator, Options options,
bool simpleVersion) // <- options copied to keep thread safe
{
bool analysisCompleted = false;
if (options.pointDepthSelection) {
if (m_viewClass & DX_VIEWVGA && !getDisplayedPointMap().isSelected()) {
return false;
} else if (m_viewClass & DX_VIEWAXIAL && !getDisplayedShapeGraph().hasSelectedElements()) {
return false;
}
}
try {
analysisCompleted = true;
if (options.pointDepthSelection == 1) {
if (m_viewClass & DX_VIEWVGA) {
auto &map = getDisplayedPointMap();
std::set<PixelRef> origins;
for (auto &sel : map.getSelSet())
origins.insert(sel);
auto analysis = VGAVisualGlobalDepth(map.getInternalMap(), origins);
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
// force redisplay:
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAVisualGlobalDepth::Column::VISUAL_STEP_DEPTH);
} else if (m_viewClass & DX_VIEWAXIAL) {
if (!getDisplayedShapeGraph().getInternalMap().isSegmentMap()) {
auto &map = getDisplayedShapeGraph();
analysisCompleted = AxialStepDepth(map.getSelSet())
.run(communicator, map.getInternalMap(), false)
.completed;
map.setDisplayedAttribute(-1); // <- override if it's already showing
map.setDisplayedAttribute(AxialStepDepth::Column::STEP_DEPTH);
} else {
auto &map = getDisplayedShapeGraph();
analysisCompleted = SegmentTulipDepth(1024, map.getSelSet())
.run(communicator, map.getInternalMap(), false)
.completed;
map.setDisplayedAttribute(-2); // <- override if it's already showing
map.setDisplayedAttribute(SegmentTulipDepth::Column::ANGULAR_STEP_DEPTH);
}
}
// REPLACES:
// Graph::calculate_point_depth_matrix( communicator );
} else if (options.pointDepthSelection == 2) {
if (m_viewClass & DX_VIEWVGA) {
auto &map = getDisplayedPointMap();
std::set<PixelRef> origins;
for (auto &sel : map.getSelSet())
origins.insert(sel);
std::unique_ptr<IVGAMetric> analysis =
map.getAttributeTable().hasColumn(
VGAMetricDepthLinkCost::Column::LINK_METRIC_COST)
? std::unique_ptr<IVGAMetric>(
new VGAMetricDepthLinkCost(map.getInternalMap(), origins))
: std::unique_ptr<IVGAMetric>(
new VGAMetricDepth(map.getInternalMap(), origins));
auto analysisResult = analysis->run(communicator);
analysis->copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAMetricDepth::Column::METRIC_STEP_SHORTEST_PATH_LENGTH);
} else if (m_viewClass & DX_VIEWAXIAL &&
getDisplayedShapeGraph().getInternalMap().isSegmentMap()) {
auto &map = getDisplayedShapeGraph();
analysisCompleted = SegmentMetricPD(map.getSelSet())
.run(communicator, map.getInternalMap(), false)
.completed;
map.setDisplayedAttribute(SegmentMetricPD::Column::METRIC_STEP_DEPTH);
}
} else if (options.pointDepthSelection == 3) {
auto &map = getDisplayedPointMap();
std::set<PixelRef> origins;
for (auto &sel : map.getSelSet()) {
origins.insert(sel);
}
auto analysis = VGAAngularDepth(map.getInternalMap(), origins);
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAAngularDepth::Column::ANGULAR_STEP_DEPTH);
} else if (options.pointDepthSelection == 4) {
if (m_viewClass & DX_VIEWVGA) {
auto &map = getDisplayedPointMap();
map.getInternalMap().binDisplay(communicator, map.getSelSet());
} else if (m_viewClass & DX_VIEWAXIAL &&
getDisplayedShapeGraph().getInternalMap().isSegmentMap()) {
auto &map = getDisplayedShapeGraph();
analysisCompleted = SegmentTopologicalPD(map.getSelSet())
.run(communicator, map.getInternalMap(), false)
.completed;
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(SegmentTopologicalPD::Column::TOPOLOGICAL_STEP_DEPTH);
}
} else if (options.outputType == AnalysisType::ISOVIST) {
auto shapes = getShownDrawingFilesAsShapes();
auto &map = getDisplayedPointMap();
auto analysis = VGAIsovist(map.getInternalMap(), shapes);
analysis.setSimpleVersion(simpleVersion);
AnalysisResult analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAIsovist::Column::ISOVIST_AREA);
} else if (options.outputType == AnalysisType::VISUAL) {
bool localResult = true;
bool globalResult = true;
if (options.local) {
auto &map = getDisplayedPointMap();
auto analysis = VGAVisualLocal(map.getInternalMap(), options.gatesOnly);
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
localResult = analysisResult.completed;
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAVisualLocal::Column::VISUAL_CLUSTERING_COEFFICIENT);
}
if (options.global) {
auto &map = getDisplayedPointMap();
auto analysis =
VGAVisualGlobal(map.getInternalMap(), options.radius, options.gatesOnly);
analysis.setSimpleVersion(simpleVersion);
analysis.setLegacyWriteMiscs(true);
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
globalResult = analysisResult.completed;
map.setDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAVisualGlobal::getColumnWithRadius(
VGAVisualGlobal::Column::VISUAL_INTEGRATION_HH, options.radius));
}
analysisCompleted = globalResult & localResult;
} else if (options.outputType == AnalysisType::METRIC) {
auto &map = getDisplayedPointMap();
auto analysis = VGAMetric(map.getInternalMap(), options.radius, options.gatesOnly);
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
map.overrideDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAMetric::getColumnWithRadius(
VGAMetric::Column::METRIC_MEAN_SHORTEST_PATH_DISTANCE, options.radius,
map.getInternalMap().getRegion()));
} else if (options.outputType == AnalysisType::ANGULAR) {
auto &map = getDisplayedPointMap();
auto analysis = VGAAngular(map.getInternalMap(), options.radius, options.gatesOnly);
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
map.overrideDisplayedAttribute(-2);
map.setDisplayedAttribute(
VGAAngular::getColumnWithRadius(VGAAngular::Column::ANGULAR_MEAN_DEPTH,
options.radius, map.getInternalMap().getRegion()));
} else if (options.outputType == AnalysisType::THRU_VISION) {
auto &map = getDisplayedPointMap();
auto analysis = VGAThroughVision(map.getInternalMap());
auto analysisResult = analysis.run(communicator);
analysis.copyResultToMap(analysisResult.getAttributes(),
analysisResult.getAttributeData(), map.getInternalMap(),
analysisResult.columnStats);
analysisCompleted = analysisResult.completed;
map.overrideDisplayedAttribute(-2);
map.setDisplayedAttribute(VGAThroughVision::Column::THROUGH_VISION);
}
} catch (Communicator::CancelledException) {
analysisCompleted = false;
}
return analysisCompleted;
}
//////////////////////////////////////////////////////////////////
bool MetaGraphDX::isEditableMap() {
if (m_viewClass & DX_VIEWAXIAL) {
return getDisplayedShapeGraph().isEditable();
} else if (m_viewClass & DX_VIEWDATA) {
return getDisplayedDataMap().isEditable();
}
// still to do: allow editing of drawing layers
return false;
}
ShapeMapDX &MetaGraphDX::getEditableMap() {
ShapeMapDX *map = nullptr;
if (m_viewClass & DX_VIEWAXIAL) {
map = &(getDisplayedShapeGraph());
} else if (m_viewClass & DX_VIEWDATA) {
map = &(getDisplayedDataMap());
} else {
// still to do: allow editing of drawing layers
}
if (map == nullptr || !map->isEditable()) {
throw 0;
}
return *map;
}
bool MetaGraphDX::makeShape(const Line4f &line) {
if (!isEditableMap()) {
return false;
}
auto &map = getEditableMap();
return (map.makeLineShape(line, true) != -1);
}
int MetaGraphDX::polyBegin(const Line4f &line) {
if (!isEditableMap()) {
return -1;
}
auto &map = getEditableMap();
return map.polyBegin(line);
}
bool MetaGraphDX::polyAppend(int shapeRef, const Point2f &point) {
if (!isEditableMap()) {
return false;
}
auto &map = getEditableMap();
return map.polyAppend(shapeRef, point);
}
bool MetaGraphDX::polyClose(int shapeRef) {
if (!isEditableMap()) {
return false;
}
auto &map = getEditableMap();
return map.polyClose(shapeRef);
}
bool MetaGraphDX::polyCancel(int shapeRef) {
if (!isEditableMap()) {
return false;
}
auto &map = getEditableMap();
return map.polyCancel(shapeRef);
}
bool MetaGraphDX::moveSelShape(const Line4f &line) {
bool shapeMoved = false;
if (m_viewClass & DX_VIEWAXIAL) {
auto &map = getDisplayedShapeGraph();
if (!map.isEditable()) {
return false;
}
if (map.getSelCount() > 1) {
return false;
}
int rowid = *map.getSelSet().begin();
shapeMoved = map.moveShape(rowid, line);
if (shapeMoved) {
map.clearSel();
}
} else if (m_viewClass & DX_VIEWDATA) {
auto &map = getDisplayedDataMap();
if (!map.isEditable()) {
return false;
}
if (map.getSelCount() > 1) {
return false;
}
int rowid = *map.getSelSet().begin();
shapeMoved = map.moveShape(rowid, line);
if (shapeMoved) {
map.clearSel();
}
}
return shapeMoved;
}
//////////////////////////////////////////////////////////////////
// returns 0: fail, 1: made isovist, 2: made isovist and added new shapemap
// layer
int MetaGraphDX::makeIsovist(Communicator *communicator, const Point2f &p, double startangle,
double endangle, bool, bool closeIsovistPoly) {
int isovistMade = 0;
// first make isovist
Isovist iso;
if (makeBSPtree(m_bspNodeTree, communicator)) {
m_viewClass &= ~DX_VIEWDATA;
isovistMade = 1;
iso.makeit(m_bspNodeTree.getRoot(), p, m_metaGraph.region, startangle, endangle);
size_t shapelayer = 0;
auto mapRef = getMapRef(m_dataMaps, "Isovists");
if (!mapRef.has_value()) {
m_dataMaps.emplace_back("Isovists", ShapeMap::DATAMAP);
setDisplayedDataMapRef(m_dataMaps.size() - 1);
shapelayer = m_dataMaps.size() - 1;
m_state |= DX_DATAMAPS;
isovistMade = 2;
} else {
shapelayer = mapRef.value();
}
auto &map = m_dataMaps[shapelayer];
std::vector<Point2f> polygon = iso.getPolygon();
if (closeIsovistPoly) {
// if the polygon is not closed force it to close
if (polygon.front().x != polygon.back().x || polygon.front().y != polygon.back().y) {
polygon.push_back(polygon.front());
}
}
// false: closed polygon, true: isovist
int polyref = map.getInternalMap().makePolyShape(polygon, false);
map.getInternalMap().getAllShapes()[polyref].setCentroid(p);
map.overrideDisplayedAttribute(-2);
map.setDisplayedAttribute(-1);
setViewClass(DX_SHOWSHAPETOP);
AttributeTable &table = map.getInternalMap().getAttributeTable();
AttributeRow &row = table.getRow(AttributeKey(polyref));
IsovistUtils::setIsovistData(iso, table, row);
}
return isovistMade;
}
static std::pair<double, double> startendangle(Point2f vec, double fov) {
std::pair<double, double> angles;
// n.b. you must normalise this before getting the angle!
vec.normalise();
angles.first = vec.angle() - fov / 2.0;
angles.second = vec.angle() + fov / 2.0;
if (angles.first < 0.0)
angles.first += 2.0 * M_PI;
if (angles.second > 2.0 * M_PI)
angles.second -= 2.0 * M_PI;
return angles;
}
// returns 0: fail, 1: made isovist, 2: made isovist and added new shapemap
// layer
int MetaGraphDX::makeIsovistPath(Communicator *communicator, double fov, bool) {
int pathMade = 0;
// must be showing a suitable map -- that is, one which may have polylines or
// lines
int viewclass = getViewClass() & DX_VIEWFRONT;
if (!(viewclass == DX_VIEWAXIAL || viewclass == DX_VIEWDATA)) {
return 0;
}
size_t isovistmapref = 0;
auto &map = (viewclass == DX_VIEWAXIAL) //
? getDisplayedShapeGraph()
: getDisplayedDataMap();
// must have a selection: the selected shapes will form the set from which to
// create the isovist paths
if (!map.hasSelectedElements()) {
return 0;
}
ShapeMapDX *isovists = nullptr;
bool first = true;
if (makeBSPtree(m_bspNodeTree, communicator)) {
std::set<int> selset = map.getSelSet();
const auto &shapes = map.getAllShapes();
for (auto &shapeRef : selset) {
const SalaShape &path = shapes.at(shapeRef);
if (path.isLine() || path.isPolyLine()) {
if (first) {
pathMade = 1;
auto imrf = getMapRef(m_dataMaps, "Isovists");
if (!imrf.has_value()) {
m_dataMaps.emplace_back(
std::make_unique<ShapeMap>("Isovists", ShapeMap::DATAMAP));
isovistmapref = m_dataMaps.size() - 1;
setDisplayedDataMapRef(isovistmapref);
pathMade = 2;
} else {
isovistmapref = imrf.value();
}
isovists = &m_dataMaps[isovistmapref];
first = false;
}
// now make an isovist:
Isovist iso;
//
std::pair<double, double> angles;
angles.first = 0.0;
angles.second = 0.0;
//
if (path.isLine()) {
Point2f start = path.getLine().t_start();
Point2f vec = path.getLine().vector();
if (fov < 2.0 * M_PI) {
angles = startendangle(vec, fov);
}
iso.makeit(m_bspNodeTree.getRoot(), start, m_metaGraph.region, angles.first,
angles.second);
int polyref = isovists->getInternalMap().makePolyShape(iso.getPolygon(), false);
isovists->getInternalMap().getAllShapes()[polyref].setCentroid(start);
AttributeTable &table = isovists->getInternalMap().getAttributeTable();
AttributeRow &row = table.getRow(AttributeKey(polyref));
IsovistUtils::setIsovistData(iso, table, row);
} else {
for (size_t i = 0; i < path.points.size() - 1; i++) {
Line4f li = Line4f(path.points[i], path.points[i + 1]);
Point2f start = li.t_start();
Point2f vec = li.vector();
if (fov < 2.0 * M_PI) {
angles = startendangle(vec, fov);
}
iso.makeit(m_bspNodeTree.getRoot(), start, m_metaGraph.region, angles.first,
angles.second);
int polyref =
isovists->getInternalMap().makePolyShape(iso.getPolygon(), false);
isovists->getInternalMap().getAllShapes().find(polyref)->second.setCentroid(
start);
AttributeTable &table = isovists->getInternalMap().getAttributeTable();
AttributeRow &row = table.getRow(AttributeKey(polyref));
IsovistUtils::setIsovistData(iso, table, row);
}
}
}
}
if (isovists) {
isovists->overrideDisplayedAttribute(-2);
isovists->setDisplayedAttribute(-1);
setDisplayedDataMapRef(isovistmapref);
}
}
return pathMade;
}
// this version uses your own isovist (and assumes no communicator required for
// BSP tree
bool MetaGraphDX::makeIsovist(const Point2f &p, Isovist &iso) {
if (makeBSPtree(m_bspNodeTree)) {
iso.makeit(m_bspNodeTree.getRoot(), p, m_metaGraph.region);
return true;
}
return false;
}
bool MetaGraphDX::makeBSPtree(BSPNodeTree &bspNodeTree, Communicator *communicator) {
if (bspNodeTree.built()) {
return true;
}
std::vector<Line4f> partitionlines;
auto shownMaps = getShownDrawingMaps();
for (const auto &mapLayer : shownMaps) {
auto refShapes = mapLayer.first.get().getInternalMap().getAllShapes();
for (const auto &refShape : refShapes) {
std::vector<Line4f> newLines = refShape.second.getAsLines();
// must check it is not a zero length line:
for (const Line4f &line : newLines) {
if (line.length() > 0.0) {
partitionlines.push_back(line);
}
}
}
}
if (partitionlines.size()) {
//
// Now we'll try the BSP tree:
//
bspNodeTree.makeNewRoot(/* destroyIfBuilt = */ true);
time_t atime = 0;
if (communicator) {
communicator->CommPostMessage(Communicator::NUM_RECORDS, partitionlines.size());
qtimer(atime, 0);
}
try {
BSPTree::make(communicator, atime, partitionlines, m_bspNodeTree.getRoot());
m_bspNodeTree.setBuilt(true);
} catch (Communicator::CancelledException) {
m_bspNodeTree.setBuilt(false);
// probably best to delete the half made bastard of a tree:
m_bspNodeTree.destroy();
}
}
partitionlines.clear();
return m_bspNodeTree.built();
}
size_t MetaGraphDX::addShapeGraph(ShapeGraphDX &&shapeGraph) {
m_shapeGraphs.emplace_back(std::move(shapeGraph));
auto mapref = m_shapeGraphs.size() - 1;
setDisplayedShapeGraphRef(mapref);
m_state |= DX_SHAPEGRAPHS;
setViewClass(DX_SHOWAXIALTOP);
return mapref;
}
size_t MetaGraphDX::addShapeGraph(ShapeGraph &&shapeGraph) {
return addShapeGraph(ShapeGraphDX(std::make_unique<ShapeGraph>(std::move(shapeGraph))));
}
size_t MetaGraphDX::addShapeGraph(const std::string &name, int type) {
auto mapref = addShapeGraph(ShapeGraphDX(std::make_unique<ShapeGraph>(name, type)));
// add a couple of default columns:
AttributeTable &table = m_shapeGraphs[size_t(mapref)].getInternalMap().getAttributeTable();
auto connIdx = table.insertOrResetLockedColumn(ShapeGraph::Column::CONNECTIVITY);
if ((type & ShapeMap::LINEMAP) != 0) {
table.insertOrResetLockedColumn(ShapeGraph::Column::LINE_LENGTH);
}
m_shapeGraphs[mapref].setDisplayedAttribute(static_cast<int>(connIdx));
return mapref;
}
size_t MetaGraphDX::addShapeMap(const std::string &name) {
m_dataMaps.emplace_back(name, ShapeMap::DATAMAP);
m_state |= DX_DATAMAPS;
setViewClass(DX_SHOWSHAPETOP);
return m_dataMaps.size() - 1;
}
void MetaGraphDX::removeDisplayedMap() {
switch (m_viewClass & DX_VIEWFRONT) {
case DX_VIEWVGA: {
if (!hasDisplayedPointMap())
return;
removePointMap(getDisplayedPointMapRef());
if (m_pointMaps.empty()) {
setViewClass(DX_SHOWHIDEVGA);
m_state &= ~DX_POINTMAPS;
}
break;
}
case DX_VIEWAXIAL: {
if (!hasDisplayedShapeGraph())
return;
removeShapeGraph(getDisplayedShapeGraphRef());
if (m_shapeGraphs.empty()) {
setViewClass(DX_SHOWHIDEAXIAL);
m_state &= ~DX_SHAPEGRAPHS;
}
break;
}
case DX_VIEWDATA:
if (!hasDisplayedDataMap())
return;
removeDataMap(getDisplayedDataMapRef());
if (m_dataMaps.empty()) {
setViewClass(DX_SHOWHIDESHAPE);
m_state &= ~DX_DATAMAPS;
}
break;
}
}
//////////////////////////////////////////////////////////////////
bool MetaGraphDX::convertDrawingToAxial(Communicator *comm, std::string layerName) {
int oldstate = m_state;
m_state &= ~DX_SHAPEGRAPHS;
bool converted = true;
try {
auto shownMaps = getShownDrawingMaps();
auto shownMapsInternal = getAsInternalMaps(shownMaps);
for (auto mapLayer : shownMaps) {
mapLayer.first.get().setShow(false);
}
auto mapref =
addShapeGraph(MapConverter::convertDrawingToAxial(comm, layerName, shownMapsInternal));
m_shapeGraphs[mapref].setDisplayedAttribute(ShapeGraph::Column::CONNECTIVITY);
setDisplayedShapeGraphRef(mapref);
} catch (Communicator::CancelledException) {
converted = false;
}
m_state |= oldstate;
if (converted) {
m_state |= DX_SHAPEGRAPHS;
setViewClass(DX_SHOWAXIALTOP);
}
return converted;
}
bool MetaGraphDX::convertDataToAxial(Communicator *comm, std::string layerName, bool keeporiginal,
bool pushvalues) {
int oldstate = m_state;
m_state &= ~DX_SHAPEGRAPHS;
bool converted = true;
try {
addShapeGraph(MapConverter::convertDataToAxial(
comm, layerName, getDisplayedDataMap().getInternalMap(), pushvalues));
m_shapeGraphs.back().overrideDisplayedAttribute(-2); // <- override if it's already showing
m_shapeGraphs.back().setDisplayedAttribute(
static_cast<int>(m_shapeGraphs.back().getAttributeTable().getColumnIndex(
ShapeGraph::Column::CONNECTIVITY)));
if (m_shapeGraphs.size() > 0)
setDisplayedShapeGraphRef(m_shapeGraphs.size() - 1);
else
unsetDisplayedShapeGraphRef();
} catch (Communicator::CancelledException) {
converted = false;
}
m_state |= oldstate;
if (converted) {
if (!keeporiginal) {
removeDataMap(getDisplayedDataMapRef());
if (m_dataMaps.empty()) {
setViewClass(DX_SHOWHIDESHAPE);
m_state &= ~DX_DATAMAPS;
}
}
m_state |= DX_SHAPEGRAPHS;
setViewClass(DX_SHOWAXIALTOP);
}
return converted;
}
// typeflag: -1 convert drawing to convex, 0 or 1, convert data to convex (1 is
// pushvalues)
bool MetaGraphDX::convertToConvex(Communicator *comm, std::string layerName, bool keeporiginal,
int shapeMapType, bool copydata) {
int oldstate = m_state;
m_state &= ~DX_SHAPEGRAPHS; // and convex maps...
bool converted = false;
try {
if (shapeMapType == ShapeMap::DRAWINGMAP) {
auto shownMaps = getShownDrawingMaps();
auto shownMapsInternal = getAsInternalMaps(shownMaps);
for (auto &pixel : shownMaps) {
pixel.first.get().setShow(false);
}
addShapeGraph(MapConverter::convertDrawingToConvex(comm, layerName, shownMapsInternal));
converted = true;
} else if (shapeMapType == ShapeMap::DATAMAP) {
addShapeGraph(MapConverter::convertDataToConvex(
comm, layerName, getDisplayedDataMap().getInternalMap(), copydata));
converted = true;
}
m_shapeGraphs.back().overrideDisplayedAttribute(-2); // <- override if it's already showing
m_shapeGraphs.back().setDisplayedAttribute(-1);
if (m_shapeGraphs.size() > 0)
setDisplayedShapeGraphRef(m_shapeGraphs.size() - 1);
else
unsetDisplayedShapeGraphRef();
} catch (Communicator::CancelledException) {
converted = false;
}
m_state |= oldstate;
if (converted) {
if (shapeMapType != ShapeMap::DRAWINGMAP && !keeporiginal) {
removeDataMap(getDisplayedDataMapRef());
if (m_dataMaps.empty()) {
setViewClass(DX_SHOWHIDESHAPE);
m_state &= ~DX_DATAMAPS;
}
}
m_state |= DX_SHAPEGRAPHS;
setViewClass(DX_SHOWAXIALTOP);
}