Display feature layers

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 // [WriteFile Name=DisplayFeatureLayers, Category=Layers] // [Legal] // Copyright 2022 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 "DisplayFeatureLayers.h"  // ArcGIS Maps SDK headers #include "Envelope.h" #include "Error.h" #include "FeatureLayer.h" #include "GeoPackage.h" #include "GeoPackageFeatureTable.h" #include "Geodatabase.h" #include "GeodatabaseFeatureTable.h" #include "LayerListModel.h" #include "Map.h" #include "MapQuickView.h" #include "MapTypes.h" #include "Point.h" #include "Portal.h" #include "PortalItem.h" #include "ServiceFeatureTable.h" #include "ShapefileFeatureTable.h" #include "SpatialReference.h" #include "Viewpoint.h"  // Qt headers #include <QFuture> #include <QStandardPaths>  using namespace Esri::ArcGISRuntime;  // helper method to get cross platform data path namespace { QString defaultDataPath() {  QString dataPath;  #ifdef Q_OS_IOS  dataPath = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation); #else  dataPath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation); #endif   return dataPath + "/ArcGIS/Runtime/Data/"; } } // namespace  DisplayFeatureLayers::DisplayFeatureLayers(QObject* parent /* = nullptr */):  QObject(parent),  m_map(new Map(BasemapStyle::ArcGISTopographic, this)) {  // Each of these methods creates and adds a feature layer of the specified type to the map's operationalLayers LayerListModel  addGeodatabaseLayer();  addGeopackageLayer();  addPortalItemLayer();  addServiceFeatureTableLayer();  addShapefileLayer(); }  DisplayFeatureLayers::~DisplayFeatureLayers() = default;  void DisplayFeatureLayers::init() {  // Register the map view for QML  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");  qmlRegisterType<DisplayFeatureLayers>("Esri.Samples", 1, 0, "DisplayFeatureLayersSample"); }  MapQuickView* DisplayFeatureLayers::mapView() const {  return m_mapView; }  // Set the view (created in QML) void DisplayFeatureLayers::setMapView(MapQuickView* mapView) {  if (!mapView || mapView == m_mapView)  return;   m_mapView = mapView;  m_mapView->setMap(m_map);   emit mapViewChanged(); }  void DisplayFeatureLayers::setLayerVisibility(FeatureLayerType featureLayerType) {  if (!m_map || !m_mapView)  return;   // Hide all other layers  for (Layer* layer : *m_map->operationalLayers())  {  layer->setVisible(false);  }   // Make the selected feature layer visible and set the viewpoint to show the layer  switch (featureLayerType) {  case FeatureLayerType::Geodatabase:  m_gdbFeatureLayer->setVisible(true);  m_mapView->setViewpointGeometryAsync(m_gdbFeatureLayer->fullExtent());  break;  case FeatureLayerType::Geopackage:  m_gpkgFeatureLayer->setVisible(true);  m_mapView->setViewpointGeometryAsync(m_gpkgFeatureLayer->fullExtent());  break;  case FeatureLayerType::PortalItem:  m_portalItemFeatureLayer->setVisible(true);  // We can set padding on the viewpoint geometry. A negative value will zoom in.  m_mapView->setViewpointGeometryAsync(m_portalItemFeatureLayer->fullExtent(), -10'000);  break;  case FeatureLayerType::ServiceFeatureTable:  m_serviceFeatureTableFeatureLayer->setVisible(true);  // The extent of this layer is very large so we can set the viewpoint to a specific point  m_mapView->setViewpointAndWait(Viewpoint(Point(-13176752, 4090404, SpatialReference(102100)), 300'000));  break;  case FeatureLayerType::Shapefile:  m_shpFeatureLayer->setVisible(true);  m_mapView->setViewpointGeometryAsync(m_shpFeatureLayer->fullExtent());  break;  default:  break;  } }  void DisplayFeatureLayers::addGeodatabaseLayer() {  Geodatabase* gdb = new Geodatabase(defaultDataPath() + "geodatabase/LA_Trails.geodatabase", this);  connect(gdb, &Geodatabase::doneLoading, this, [gdb, this](const Error& e)  {  if (!e.isEmpty())  {  qDebug() << e.message() << e.additionalMessage();  return;  }   GeodatabaseFeatureTable* gdbFeatureTable = gdb->geodatabaseFeatureTable("Trailheads");  m_gdbFeatureLayer = new FeatureLayer(gdbFeatureTable, this);  m_map->operationalLayers()->append(m_gdbFeatureLayer);   // Because this feature layer is added asynchronously, we may need to set its visibility even after the initial setLayerVisibility() method is called  m_gdbFeatureLayer->setVisible(false);  });   gdb->load(); }  void DisplayFeatureLayers::addGeopackageLayer() {  GeoPackage* gpkg = new GeoPackage(defaultDataPath() + "gpkg/AuroraCO.gpkg", this);   connect(gpkg, &GeoPackage::doneLoading, this, [this, gpkg](const Error& e)  {  if (!e.isEmpty())  {  qDebug() << e.message() << e.additionalMessage();  return;  }   if (!(gpkg->geoPackageFeatureTables().size() > 0))  return;   GeoPackageFeatureTable* gpkgFeatureTable = gpkg->geoPackageFeatureTables().at(0);  m_gpkgFeatureLayer = new FeatureLayer(gpkgFeatureTable, this);  m_map->operationalLayers()->append(m_gpkgFeatureLayer);   // Because this feature layer is added asynchronously, we may need to set its visibility even after the initial setLayerVisibility() method is called  m_gpkgFeatureLayer->setVisible(false);  });   gpkg->load();  // Note that you must call close() on GeoPackage to allow other processes to access it }  void DisplayFeatureLayers::addPortalItemLayer() {  Portal* portal = new Portal(this);  PortalItem* portalItem = new PortalItem(portal, "1759fd3e8a324358a0c58d9a687a8578", this);   // A portal item can be many things from files to web maps.  // We can check its type to ensure we're instantiating a feature layer with the  // correct portal item type, but the portal item must first be loaded explicitly.  // Here, the portal item is automatically loaded when it is used to instantiate a feature layer.   m_portalItemFeatureLayer = new FeatureLayer(portalItem, 0, this);  m_map->operationalLayers()->append(m_portalItemFeatureLayer); }  void DisplayFeatureLayers::addServiceFeatureTableLayer() {  ServiceFeatureTable* serviceFeatureTable = new ServiceFeatureTable(QUrl("https://sampleserver6.arcgisonline.com/arcgis/rest/services/Energy/Geology/FeatureServer/9"), this);  m_serviceFeatureTableFeatureLayer = new FeatureLayer(serviceFeatureTable, this);  m_map->operationalLayers()->append(m_serviceFeatureTableFeatureLayer); }  void DisplayFeatureLayers::addShapefileLayer() {  ShapefileFeatureTable* shpFeatureTable = new ShapefileFeatureTable(defaultDataPath() + "shp/ScottishWildlifeTrust_ReserveBoundaries_20201102.shp", this);  m_shpFeatureLayer = new FeatureLayer(shpFeatureTable, this);  m_map->operationalLayers()->append(m_shpFeatureLayer); }