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// [WriteFile Name=DensifyAndGeneralize, 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 "DensifyAndGeneralize.h"
#include "Map.h"
#include "MapQuickView.h"
#include "PointCollection.h"
#include "SpatialReference.h"
#include "Graphic.h"
#include "SimpleMarkerSymbol.h"
#include "SimpleLineSymbol.h"
#include "MultipointBuilder.h"
#include "PolylineBuilder.h"
#include "GeometryEngine.h"
#include "PointCollection.h"
#include "MapTypes.h"
#include "GraphicsOverlayListModel.h"
#include "GraphicListModel.h"
#include "SymbolTypes.h"
#include "TaskWatcher.h"
#include "ImmutablePartCollection.h"
#include "ImmutablePart.h"
#include "ImmutablePointCollection.h"
#include "GraphicsOverlay.h"
#include "Point.h"
#include "Polyline.h"
#include "Envelope.h"
using namespace Esri::ArcGISRuntime;
DensifyAndGeneralize::DensifyAndGeneralize(QQuickItem* parent /* = nullptr */):
QQuickItem(parent)
{
}
void DensifyAndGeneralize::init()
{
// Register the map view for QML
qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
qmlRegisterType<DensifyAndGeneralize>("Esri.Samples", 1, 0, "DensifyAndGeneralizeSample");
}
void DensifyAndGeneralize::componentComplete()
{
QQuickItem::componentComplete();
// find QML MapView component
m_mapView = findChild<MapQuickView*>("mapView");
// Create a map using the streets night vector basemap
m_map = new Map(BasemapStyle::ArcGISStreetsNight, this);
// Add a GraphicsOverlay
m_graphicsOverlay = new GraphicsOverlay(this);
m_mapView->graphicsOverlays()->append(m_graphicsOverlay);
// Get Points along the river
PointCollection* pointCollection = createPointCollection();
// original multipart red graphic
MultipointBuilder multipointBuilder(pointCollection->spatialReference());
multipointBuilder.setPoints(pointCollection);
SimpleMarkerSymbol* originalSms = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, QColor("red"), 7.0f /*size*/, this);
m_originalMultipointGraphic = new Graphic(multipointBuilder.toGeometry(), originalSms, this);
m_originalMultipointGraphic->setZIndex(0);
m_graphicsOverlay->graphics()->append(m_originalMultipointGraphic);
// original red dotted line graphic
PolylineBuilder polylineBuilder(pointCollection->spatialReference());
const int pointCollectionSize = pointCollection->size();
for (int i = 0; i < pointCollectionSize; i++)
{
polylineBuilder.addPoint(pointCollection->point(i));
}
SimpleLineSymbol* originalSls = new SimpleLineSymbol(SimpleLineSymbolStyle::Dot, QColor("red"), 3.0f /*size*/, this);
m_originalLineGraphic = new Graphic(polylineBuilder.toGeometry(), originalSls, this);
m_originalLineGraphic->setZIndex(1);
m_graphicsOverlay->graphics()->append(m_originalLineGraphic);
// resulting (densified and generalized) multipart magenta graphic
SimpleMarkerSymbol* resultSms = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, QColor("magenta"), 7.0f /*size*/, this);
m_resultMultipointGraphic = new Graphic(this);
m_resultMultipointGraphic->setSymbol(resultSms);
m_resultMultipointGraphic->setZIndex(2);
m_graphicsOverlay->graphics()->append(m_resultMultipointGraphic);
// resulting (densified and generalized) multipart magenta graphic
SimpleLineSymbol* resultSls = new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor("magenta"), 3.0f /*size*/, this);
m_resultLineGraphic = new Graphic(this);
m_resultLineGraphic->setSymbol(resultSls);
m_resultLineGraphic->setZIndex(3);
m_graphicsOverlay->graphics()->append(m_resultLineGraphic);
// Set map to map view
m_mapView->setMap(m_map);
// set viewpoint
m_mapView->setViewpointGeometry(m_originalMultipointGraphic->geometry().extent(), 100);
}
void DensifyAndGeneralize::updateGeometry(bool densify, double maxSegmentLength, bool generalize, double maxDeviation)
{
if (!m_originalLineGraphic)
return;
// Get the initial Geometry
Polyline polyline = geometry_cast<Polyline>(m_originalLineGraphic->geometry());
if (polyline.isEmpty())
return;
// Generalize the polyline
if (generalize)
polyline = geometry_cast<Polyline>(GeometryEngine::generalize(polyline, maxDeviation, true));
// Densify the polyline
if (densify)
polyline = geometry_cast<Polyline>(GeometryEngine::densify(polyline, maxSegmentLength));
// Update the line graphic
m_resultLineGraphic->setGeometry(polyline);
// Update the multipoint graphic
if (polyline.parts().size() < 1)
return;
MultipointBuilder multipointBuilder(polyline.spatialReference());
PointCollection* pointCollection = new PointCollection(polyline.spatialReference(), this);
ImmutablePointCollection polylinePoints = polyline.parts().part(0).points();
const int polylinePointsSize = polylinePoints.size();
for (int i = 0; i < polylinePointsSize; i++)
{
pointCollection->addPoint(polylinePoints.point(i));
}
multipointBuilder.setPoints(pointCollection);
m_resultMultipointGraphic->setGeometry(multipointBuilder.toGeometry());
}
PointCollection* DensifyAndGeneralize::createPointCollection()
{
SpatialReference sr(32126);
PointCollection* pointCollection = new PointCollection(sr, this);
pointCollection->addPoint(2330611.130549, 202360.002957, 0.000000);
pointCollection->addPoint(2330583.834672, 202525.984012, 0.000000);
pointCollection->addPoint(2330574.164902, 202691.488009, 0.000000);
pointCollection->addPoint(2330689.292623, 203170.045888, 0.000000);
pointCollection->addPoint(2330696.773344, 203317.495798, 0.000000);
pointCollection->addPoint(2330691.419723, 203380.917080, 0.000000);
pointCollection->addPoint(2330435.065296, 203816.662457, 0.000000);
pointCollection->addPoint(2330369.500800, 204329.861789, 0.000000);
pointCollection->addPoint(2330400.929891, 204712.129673, 0.000000);
pointCollection->addPoint(2330484.300447, 204927.797132, 0.000000);
pointCollection->addPoint(2330514.469919, 205000.792463, 0.000000);
pointCollection->addPoint(2330638.099138, 205271.601116, 0.000000);
pointCollection->addPoint(2330725.315888, 205631.231308, 0.000000);
pointCollection->addPoint(2330755.640702, 206433.354860, 0.000000);
pointCollection->addPoint(2330680.644719, 206660.240923, 0.000000);
pointCollection->addPoint(2330386.957926, 207340.947204, 0.000000);
pointCollection->addPoint(2330485.861737, 207742.298501, 0.000000);
return pointCollection;
}
void DensifyAndGeneralize::showResults(bool show)
{
m_resultMultipointGraphic->setVisible(show);
m_resultLineGraphic->setVisible(show);
}