Extrude graphics

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 // [WriteFile Name=ExtrudeGraphics, Category=Scenes] // [Legal] // Copyright 2016 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  // sample headers #include "ExtrudeGraphics.h"  // ArcGIS Maps SDK headers #include "ArcGISTiledElevationSource.h" #include "AttributeListModel.h" #include "Basemap.h" #include "Camera.h" #include "ElevationSourceListModel.h" #include "Graphic.h" #include "GraphicListModel.h" #include "GraphicsOverlay.h" #include "GraphicsOverlayListModel.h" #include "MapTypes.h" #include "Point.h" #include "Polygon.h" #include "PolygonBuilder.h" #include "RendererSceneProperties.h" #include "Scene.h" #include "SceneQuickView.h" #include "SceneViewTypes.h" #include "SimpleFillSymbol.h" #include "SimpleRenderer.h" #include "SpatialReference.h" #include "Surface.h" #include "SymbolTypes.h"  // STL headers #include <cmath> #include <ctime>  using namespace Esri::ArcGISRuntime;  ExtrudeGraphics::ExtrudeGraphics(QQuickItem* parent) :  QQuickItem(parent) {  srand(time(nullptr)); }  ExtrudeGraphics::~ExtrudeGraphics() = default;  void ExtrudeGraphics::init() {  qmlRegisterType<SceneQuickView>("Esri.Samples", 1, 0, "SceneView");  qmlRegisterType<ExtrudeGraphics>("Esri.Samples", 1, 0, "ExtrudeGraphicsSample"); }  void ExtrudeGraphics::componentComplete() {  QQuickItem::componentComplete();   // find QML SceneView component  m_sceneView = findChild<SceneQuickView*>("sceneView");   // create a new basemap instance  Basemap* basemap = new Basemap(BasemapStyle::ArcGISImageryStandard, this);  // create a new scene instance  m_scene = new Scene(basemap, this);  // set scene on the scene view  m_sceneView->setArcGISScene(m_scene);   // create a new elevation source  ArcGISTiledElevationSource* elevationSource = new ArcGISTiledElevationSource(m_elevationSourceUrl, this);  // add the elevation source to the scene to display elevation  m_scene->baseSurface()->elevationSources()->append(elevationSource);   // create a camera  const double latitude = 28.4;  const double longitude = 83.9;  const double altitude = 10010.0;  const double heading = 10.0;  const double pitch = 80.0;  const double roll = 0.0;  Camera camera(latitude, longitude, altitude, heading, pitch, roll);  // set the viewpoint  m_sceneView->setViewpointCameraAndWait(camera);   // graphics location  double lon = camera.location().x() - 0.03;  double lat = camera.location().y() + 0.2;   GraphicsOverlay* graphicsOverlay = new GraphicsOverlay(this);   // set renderer with extrusion property  SimpleRenderer* renderer = new SimpleRenderer(this);  RendererSceneProperties props = renderer->sceneProperties();  props.setExtrusionMode(ExtrusionMode::BaseHeight);  props.setExtrusionExpression("[height]");  renderer->setSceneProperties(props);  SimpleFillSymbol* sfs = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("red"), this);  renderer->setSymbol(sfs);  graphicsOverlay->setRenderer(renderer);   // setup graphic locations  QList<Point> pointsList;  for (int i = 0; i <= 100; i++)  {  Point point(i / 10 * (m_size * 2) + lon, i % 10 * (m_size * 2) + lat, m_sceneView->spatialReference());  pointsList.append(point);  }   for (const Point& point : pointsList)  {  // create a random z value  const int randNum = rand() % 6 + 1;  const double z = m_maxZ * randNum;   // create a list of points  const QList<Point> points { Point(point.x(), point.y(), z)  , Point(point.x() + m_size, point.y(), z)  , Point(point.x() + m_size, point.y() + m_size, z)  , Point(point.x(), point.y() + m_size, z)  };   // create a new graphic  Graphic* graphic = new Graphic(createPolygonFromPoints(points), this);  // add a height attribute to the graphic using the attribute list model  // the extrusion will be applied to this attribute. See the expression above  graphic->attributes()->insertAttribute("height", z);  // add the graphic to the graphic overlay  graphicsOverlay->graphics()->append(graphic);  }   m_sceneView->graphicsOverlays()->append(graphicsOverlay); }  // helper to create polygon from points Polygon ExtrudeGraphics::createPolygonFromPoints(const QList<Point>& points) {  Polygon polygon;  if (points.length() == 0)  return polygon;   // create a polygon builder  PolygonBuilder* pb = new PolygonBuilder(m_sceneView->spatialReference(), this);  for (const Point& point : points)  {  // add each point to the builder object  pb->addPoint(point);  }  return polygon = pb->toPolygon(); }