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// [WriteFile Name=SpatialRelationships, Category=Geometry]
// [Legal]
// Copyright 2018 Esri.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]
#ifdef PCH_BUILD
#include "pch.hpp"
#endif // PCH_BUILD
#include "SpatialRelationships.h"
#include "Map.h"
#include "MapQuickView.h"
#include "GraphicsOverlay.h"
#include "Graphic.h"
#include "SimpleFillSymbol.h"
#include "SimpleLineSymbol.h"
#include "SimpleMarkerSymbol.h"
#include "Point.h"
#include "PolylineBuilder.h"
#include "Polyline.h"
#include "PolygonBuilder.h"
#include "Polygon.h"
#include "GeometryEngine.h"
#include "MapTypes.h"
#include "GraphicsOverlayListModel.h"
#include "GraphicListModel.h"
#include "SymbolTypes.h"
#include "SelectionProperties.h"
#include "TaskWatcher.h"
#include "IdentifyGraphicsOverlayResult.h"
#include "SpatialReference.h"
#include <QUuid>
#include <QStringList>
#include <memory>
using namespace Esri::ArcGISRuntime;
SpatialRelationships::SpatialRelationships(QQuickItem* parent /* = nullptr */):
QQuickItem(parent)
{
}
void SpatialRelationships::init()
{
// Register the map view for QML
qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
qmlRegisterType<SpatialRelationships>("Esri.Samples", 1, 0, "SpatialRelationshipsSample");
}
void SpatialRelationships::componentComplete()
{
QQuickItem::componentComplete();
// find QML MapView component
m_mapView = findChild<MapQuickView*>("mapView");
m_mapView->setSelectionProperties(SelectionProperties(QColor(Qt::yellow)));
// Create a map using the topographic basemap
m_map = new Map(BasemapStyle::ArcGISTopographic, this);
// Set map to map view
m_mapView->setMap(m_map);
// Create GraphicsOverlay
m_graphicsOverlay = new GraphicsOverlay(this);
m_mapView->graphicsOverlays()->append(m_graphicsOverlay);
// Add Graphics
addGraphics();
// Set viewpoint
m_mapView->setViewpointCenter(geometry_cast<Point>(m_pointGraphic->geometry()), 200000000);
// connect signals
connectSignals();
}
void SpatialRelationships::addGraphics()
{
addPolygonGraphic();
addPolylineGraphic();
addPointGraphic();
}
void SpatialRelationships::addPolygonGraphic()
{
// create polygon geometry
PolygonBuilder polyBuilder(SpatialReference::webMercator());
polyBuilder.addPoint(-5991501.677830, 5599295.131468);
polyBuilder.addPoint(-6928550.398185, 2087936.739807);
polyBuilder.addPoint(-3149463.800709, 1840803.011362);
polyBuilder.addPoint(-1563689.043184, 3714900.452072);
polyBuilder.addPoint(-3180355.516764, 5619889.608838);
Polygon geom = polyBuilder.toPolygon();
// create symbol
SimpleLineSymbol* outline = new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor("green"), 2.0f /*width*/, this);
SimpleFillSymbol* sfs = new SimpleFillSymbol(SimpleFillSymbolStyle::ForwardDiagonal, QColor("green"), outline, this);
// create graphic
m_polygonGraphic = new Graphic(geom, sfs);
m_graphicsOverlay->graphics()->append(m_polygonGraphic);
}
void SpatialRelationships::addPolylineGraphic()
{
// create poyline geometry
PolylineBuilder polyBuilder(SpatialReference::webMercator());
polyBuilder.addPoint(-4354240.726880, -609939.795721);
polyBuilder.addPoint(-3427489.245210, 2139422.933233);
polyBuilder.addPoint(-2109442.693501, 4301843.057130);
polyBuilder.addPoint(-1810822.771630, 7205664.366363);
Polyline geom = polyBuilder.toPolyline();
// create symbol
SimpleLineSymbol* sls = new SimpleLineSymbol(SimpleLineSymbolStyle::Dash, QColor("red"), 4.0f /*width*/, this);
// create graphic
m_polylineGraphic = new Graphic(geom, sls);
m_graphicsOverlay->graphics()->append(m_polylineGraphic);
}
void SpatialRelationships::addPointGraphic()
{
// Create point geometry
Point geom(-4487263.495911, 3699176.480377, SpatialReference::webMercator());
// create symbol
SimpleMarkerSymbol* sms = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, QColor("blue"), 10.0f /*size*/, this);
// create graphic
m_pointGraphic = new Graphic(geom, sms, this);
m_graphicsOverlay->graphics()->append(m_pointGraphic);
}
void SpatialRelationships::connectSignals()
{
connect(m_mapView, &MapQuickView::mouseClicked, this, [this](QMouseEvent& mouseEvent)
{
// identify graphics
m_mapView->identifyGraphicsOverlay(m_graphicsOverlay, mouseEvent.position().x(), mouseEvent.position().y(), 1.0 /*tolerance*/, false /*returnPopupsOnly*/);
});
connect(m_mapView, &MapQuickView::identifyGraphicsOverlayCompleted, this, [this](const QUuid&, IdentifyGraphicsOverlayResult* rawResult)
{
// Delete rawReslt when we leave scope.
auto result = std::unique_ptr<IdentifyGraphicsOverlayResult>(rawResult);
const QList<Graphic*> identifiedGraphics = result->graphics();
if (identifiedGraphics.isEmpty())
return;
// get the first identified graphic
Graphic* graphic = identifiedGraphics.at(0);
// select the graphic
m_graphicsOverlay->clearSelection();
graphic->setSelected(true);
// get the geometry
const Geometry selectedGeometry = graphic->geometry();
const GeometryType selectedGeometryType = selectedGeometry.geometryType();
// reset the output text
m_pointRelationships = "";
m_polylineRelationships = "";
m_polygonRelationships = "";
// populate the view with the spatial relationships the selected graphic has to the other graphics
// ignore testing relationships between the geometry and itself
if (selectedGeometryType != GeometryType::Point)
{
const QString pointRelationships = getSpatialRelationships(selectedGeometry, m_pointGraphic->geometry()).join(",");
m_pointRelationships = QString("Point: %1").arg(pointRelationships);
}
if (selectedGeometryType != GeometryType::Polyline)
{
const QString polylineRelationships = getSpatialRelationships(selectedGeometry, m_polylineGraphic->geometry()).join(",");
m_polylineRelationships = QString("Polyline: %1").arg(polylineRelationships);
}
if (selectedGeometryType != GeometryType::Polygon)
{
const QString polygonRelationships = getSpatialRelationships(selectedGeometry, m_polygonGraphic->geometry()).join(",");
m_polygonRelationships = QString("Polygon: %1").arg(polygonRelationships);
}
emit relationshipsChanged();
});
}
// function to return list of relaionships
QStringList SpatialRelationships::getSpatialRelationships(const Geometry& geom1, const Geometry& geom2)
{
QStringList relationships;
if (GeometryEngine::crosses(geom1, geom2))
relationships.append("CROSSES");
if (GeometryEngine::contains(geom1, geom2))
relationships.append("CONTAINS");
if (GeometryEngine::disjoint(geom1, geom2))
relationships.append("DISJOINT");
if (GeometryEngine::intersects(geom1, geom2))
relationships.append("INTERSECTS");
if (GeometryEngine::overlaps(geom1, geom2))
relationships.append("OVERLAPS");
if (GeometryEngine::touches(geom1, geom2))
relationships.append("TOUCHES");
if (GeometryEngine::within(geom1, geom2))
relationships.append("WITHIN");
return relationships;
}
