Add dynamic entity layer

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 // [WriteFile Name=AddDynamicEntityLayer, Category=Layers] // [Legal] // Copyright 2023 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 "AddDynamicEntityLayer.h"  // ArcGIS Maps SDK headers #include "ArcGISStreamService.h" #include "ArcGISStreamServiceFilter.h" #include "CalloutData.h" #include "DynamicEntity.h" #include "DynamicEntityChangedInfo.h" #include "DynamicEntityDataSourcePurgeOptions.h" #include "DynamicEntityLayer.h" #include "DynamicEntityObservation.h" #include "Envelope.h" #include "Graphic.h" #include "GraphicListModel.h" #include "GraphicsOverlay.h" #include "GraphicsOverlayListModel.h" #include "IdentifyLayerResult.h" #include "LayerListModel.h" #include "Map.h" #include "MapQuickView.h" #include "MapTypes.h" #include "Point.h" #include "RealTimeTypes.h" #include "SimpleLineSymbol.h" #include "SimpleMarkerSymbol.h" #include "SimpleRenderer.h" #include "SpatialReference.h" #include "SymbolTypes.h" #include "TrackDisplayProperties.h" #include "UniqueValue.h" #include "UniqueValueRenderer.h" #include "Viewpoint.h"  // Qt headers #include <QFuture>  using namespace Esri::ArcGISRuntime;  namespace { // This envelope is a limited region around Sandy, Utah. It will be the extent used by the `DynamicEntityFilter`. const Envelope utahSandyEnvelope(  Point(-112.110052, 40.718083, SpatialReference::wgs84()),  Point(-111.814782, 40.535247, SpatialReference::wgs84())); }  AddDynamicEntityLayer::AddDynamicEntityLayer(QObject* parent /* = nullptr */):  QObject(parent),  m_map(new Map(BasemapStyle::ArcGISDarkGray, this)) {  // Create a dynamic entity data source from a given URL  const QUrl streamServiceUrl("https://realtimegis2016.esri.com:6443/arcgis/rest/services/SandyVehicles/StreamServer");  m_dynamicEntityDataSource = new ArcGISStreamService(streamServiceUrl, this);   // Create and set an ArcGISStreamServiceFilter to filter what data is received from the server  ArcGISStreamServiceFilter* streamServiceFilter = new ArcGISStreamServiceFilter(this);  streamServiceFilter->setGeometry(utahSandyEnvelope);  streamServiceFilter->setWhereClause("speed > 0");  m_dynamicEntityDataSource->setFilter(streamServiceFilter);   // Set purge options to manage when entities are removed from the cache  m_dynamicEntityDataSource->purgeOptions()->setMaximumDuration(300.0 /*seconds*/);   // Handle signals emitted when connection status changes to update the UI  connect(m_dynamicEntityDataSource, &ArcGISStreamService::connectionStatusChanged, this, &AddDynamicEntityLayer::connectionStatusChanged);   // Create a dynamic entity layer to display on the map and set the properties  m_dynamicEntityLayer = new DynamicEntityLayer(m_dynamicEntityDataSource, this);   // Set the track display properties to change what is displayed to the user  m_dynamicEntityLayer->trackDisplayProperties()->setShowTrackLine(true);  m_dynamicEntityLayer->trackDisplayProperties()->setShowPreviousObservations(true);   // Create renderers for observations and their tracklines to change how they are styled   // Create a unique value renderer for the latest observations  QList<UniqueValue*> entityValues;  entityValues.append(new UniqueValue("","", {3}, new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, Qt::magenta, 8, this), this));  entityValues.append(new UniqueValue("","", {4}, new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, Qt::green, 8, this), this));   UniqueValueRenderer* entityRenderer = new UniqueValueRenderer("", new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, Qt::blue, 8, this), {"agency"}, entityValues, this);  m_dynamicEntityLayer->setRenderer(entityRenderer);   // Create a unique value renderer for the previous observations  QList<UniqueValue*> previousObservationValues;   previousObservationValues.append(new UniqueValue("","", {3}, new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, Qt::magenta, 3, this), this));  previousObservationValues.append(new UniqueValue("","", {4}, new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, Qt::green, 3, this), this));   UniqueValueRenderer* trackRenderer = new UniqueValueRenderer("", new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Circle, Qt::blue, 3, this), {"agency"}, previousObservationValues);  m_dynamicEntityLayer->trackDisplayProperties()->setPreviousObservationRenderer(trackRenderer);   // Use a simple renderer to change the style of the trackline  m_dynamicEntityLayer->trackDisplayProperties()->setTrackLineRenderer(new SimpleRenderer(new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, Qt::lightGray, 2, this)));   m_map->operationalLayers()->append(m_dynamicEntityLayer); }  AddDynamicEntityLayer::~AddDynamicEntityLayer() = default;  void AddDynamicEntityLayer::init() {  // Register the map view for QML  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");  qmlRegisterType<AddDynamicEntityLayer>("Esri.Samples", 1, 0, "AddDynamicEntityLayerSample"); }  MapQuickView* AddDynamicEntityLayer::mapView() const {  return m_mapView; }  // Set the view (created in QML) void AddDynamicEntityLayer::setMapView(MapQuickView* mapView) {  if (!mapView || mapView == m_mapView)  return;   m_mapView = mapView;  m_mapView->setMap(m_map);   // Create and show a dashed line around the filter area  GraphicsOverlay* borderOverlay = new GraphicsOverlay(this);  borderOverlay->graphics()->append(new Graphic(utahSandyEnvelope, new SimpleLineSymbol(SimpleLineSymbolStyle::Dash, Qt::red, 2, this), this));  m_mapView->graphicsOverlays()->append(borderOverlay);   // Set the initial viewpoint to this area  m_mapView->setViewpointAndWait(Viewpoint(utahSandyEnvelope));   // Create a slot to listen for mouse clicks  connect(m_mapView, &MapQuickView::mouseClicked, this, &AddDynamicEntityLayer::identifyLayerAtMouseClick);   emit mapViewChanged(); }  void AddDynamicEntityLayer::setObservationsPerTrack(int observationsPerTrack) {  // Update the number of entity observations displayed using the value from the UI slider  m_dynamicEntityLayer->trackDisplayProperties()->setMaximumObservations(observationsPerTrack); }  void AddDynamicEntityLayer::showTrackLines(bool showTrackLines) {  // Show or hide the lines that connect previous observations  m_dynamicEntityLayer->trackDisplayProperties()->setShowTrackLine(showTrackLines); }  void AddDynamicEntityLayer::showPreviousObservations(bool showPreviousObservations) {  // Show or hide previous observations (if maximum observations is greater than 1)  m_dynamicEntityLayer->trackDisplayProperties()->setShowPreviousObservations(showPreviousObservations); }  QString AddDynamicEntityLayer::connectionStatus() const {  // Return the current dynamic entity data source connection status as a string to display in the UI  switch (m_dynamicEntityDataSource->connectionStatus())  {  case ConnectionStatus::Disconnected:  return "Disconnected";  case ConnectionStatus::Connecting:  return "Connecting";  case ConnectionStatus::Connected:  return "Connected";  case ConnectionStatus::Failed:  return "Failed";  default:  return "Unknown";  } }  void AddDynamicEntityLayer::enableDisableConnection() {  // Handle the UI connection switch and disable or enable connection  switch (m_dynamicEntityDataSource->connectionStatus())  {  case ConnectionStatus::Disconnected:  {  auto future = m_dynamicEntityDataSource->connectDataSourceAsync();  Q_UNUSED(future)  break;  }  case ConnectionStatus::Connecting:  // Do nothing and allow data source to finish connecting  break;  case ConnectionStatus::Connected:  {  auto future = m_dynamicEntityDataSource->disconnectDataSourceAsync();  Q_UNUSED(future)  break;  }  case ConnectionStatus::Failed:  qWarning() << "Unable to connect to dynamic entity data source";  break;  default:  break;  } }  void AddDynamicEntityLayer::purgeAllObservations() {  // Remove all current observations from the cache  auto future = m_dynamicEntityDataSource->purgeAllAsync();  Q_UNUSED(future) }  void AddDynamicEntityLayer::identifyLayerAtMouseClick(const QMouseEvent& e) {  // Hide the callout (if it is already hidden this will do nothing)  m_mapView->calloutData()->setVisible(false);   m_mapView->identifyLayerAsync(m_dynamicEntityLayer, e.position(), 5, false, this)  .then(this, [this](IdentifyLayerResult* result)  {  if (!result || result->geoElements().empty())  {  return;  }   if (DynamicEntityObservation* observation = dynamic_cast<DynamicEntityObservation*>(result->geoElements().constFirst()); observation)  {  DynamicEntity* dynamicEntity = observation->dynamicEntity();  if (!dynamicEntity)  {  return;  }  m_mapView->calloutData()->setGeoElement(dynamicEntity);  // Create a arcade expression for title to display the dynamic entity's attributes in the callout.  const QString titleExpression = "concatenate($feature.vehiclename, \": \", $feature.speed, \" mph\")";  m_mapView->calloutData()->setTitleExpression(titleExpression);   // Create a arcade expression for detail to display the dynamic entity's attributes in the callout.  const QString detailExpression = "concatenate(Round($feature.point_x,6), \",\", Round($feature.point_y,6),\" Heading: \",$feature.heading,\"°\")";  m_mapView->calloutData()->setDetailExpression(detailExpression);   // Show the callout when the title is available.  connect(m_mapView->calloutData(), &CalloutData::titleChanged, this, [this]()  {  m_mapView->calloutData()->setVisible(true);  }, Qt::SingleShotConnection);  }  }); }