Spatial relationships

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 /*  * 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.  */  package com.esri.samples.spatial_relationships;  import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.concurrent.ExecutionException;  import javafx.application.Application; import javafx.geometry.Insets; import javafx.geometry.Point2D; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.TreeItem; import javafx.scene.control.TreeView; import javafx.scene.input.MouseButton; import javafx.scene.layout.StackPane; import javafx.scene.paint.Color; import javafx.stage.Stage;  import com.esri.arcgisruntime.ArcGISRuntimeEnvironment; import com.esri.arcgisruntime.concurrent.ListenableFuture; import com.esri.arcgisruntime.geometry.Geometry; import com.esri.arcgisruntime.geometry.GeometryEngine; import com.esri.arcgisruntime.geometry.GeometryType; import com.esri.arcgisruntime.geometry.Point; import com.esri.arcgisruntime.geometry.PointCollection; import com.esri.arcgisruntime.geometry.Polygon; import com.esri.arcgisruntime.geometry.Polyline; import com.esri.arcgisruntime.geometry.SpatialReferences; import com.esri.arcgisruntime.mapping.ArcGISMap; import com.esri.arcgisruntime.mapping.BasemapStyle; import com.esri.arcgisruntime.mapping.view.Graphic; import com.esri.arcgisruntime.mapping.view.GraphicsOverlay; import com.esri.arcgisruntime.mapping.view.IdentifyGraphicsOverlayResult; import com.esri.arcgisruntime.mapping.view.MapView; import com.esri.arcgisruntime.symbology.SimpleFillSymbol; import com.esri.arcgisruntime.symbology.SimpleLineSymbol; import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;  public class SpatialRelationshipsSample extends Application {   private MapView mapView;   private enum SpatialRelationship {  CROSSES, CONTAINS, DISJOINT, INTERSECTS, OVERLAPS, TOUCHES, WITHIN  }   @Override  public void start(Stage stage) {   try {  // create stack pane and application scene  StackPane stackPane = new StackPane();  Scene scene = new Scene(stackPane);   // set title, size, and add scene to stage  stage.setTitle("Spatial Relationships Sample");  stage.setWidth(800);  stage.setHeight(700);  stage.setScene(scene);  stage.show();   // authentication with an API key or named user is required to access basemaps and other location services  String yourAPIKey = System.getProperty("apiKey");  ArcGISRuntimeEnvironment.setApiKey(yourAPIKey);   // create a map with the topographic basemap style  ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);   // create a map view and set the map to it  mapView = new MapView();  mapView.setMap(map);   // create a graphics overlay  GraphicsOverlay graphicsOverlay = new GraphicsOverlay();  mapView.getGraphicsOverlays().add(graphicsOverlay);   // make selection outline yellow  mapView.getSelectionProperties().setColor(Color.YELLOW);   // create a polygon graphic  PointCollection polygonPoints = new PointCollection(SpatialReferences.getWebMercator());  polygonPoints.add(new Point(-5991501.677830, 5599295.131468));  polygonPoints.add(new Point(-6928550.398185, 2087936.739807));  polygonPoints.add(new Point(-3149463.800709, 1840803.011362));  polygonPoints.add(new Point(-1563689.043184, 3714900.452072));  polygonPoints.add(new Point(-3180355.516764, 5619889.608838));  Polygon polygon = new Polygon(polygonPoints);  SimpleFillSymbol polygonSymbol = new SimpleFillSymbol(SimpleFillSymbol.Style.FORWARD_DIAGONAL, Color.LIME,  new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, Color.LIME, 2));  Graphic polygonGraphic = new Graphic(polygon, polygonSymbol);  graphicsOverlay.getGraphics().add(polygonGraphic);   // create a polyline graphic  PointCollection polylinePoints = new PointCollection(SpatialReferences.getWebMercator());  polylinePoints.add(new Point(-4354240.726880, -609939.795721));  polylinePoints.add(new Point(-3427489.245210, 2139422.933233));  polylinePoints.add(new Point(-2109442.693501, 4301843.057130));  polylinePoints.add(new Point(-1810822.771630, 7205664.366363));  Polyline polyline = new Polyline(polylinePoints);  Graphic polylineGraphic = new Graphic(polyline, new SimpleLineSymbol(SimpleLineSymbol.Style.DASH, Color.RED,  4));  graphicsOverlay.getGraphics().add(polylineGraphic);   // create a point graphic  Point point = new Point(-4487263.495911, 3699176.480377, SpatialReferences.getWebMercator());  SimpleMarkerSymbol locationMarker = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, Color.BLUE, 10);  Graphic pointGraphic = new Graphic(point, locationMarker);  graphicsOverlay.getGraphics().add(pointGraphic);   // create a tree view to show the spatial relationships between each graphic and the selected graphic  TreeView<String> relationships = new TreeView<>();  relationships.setMaxSize(200, 300);  TreeItem<String> rootItem = new TreeItem<>("Relationships");  rootItem.setExpanded(true);  relationships.setRoot(rootItem);  TreeItem<String> pointRelationships = new TreeItem<>("Point");  pointRelationships.setExpanded(true);  TreeItem<String> polylineRelationships = new TreeItem<>("Polyline");  polylineRelationships.setExpanded(true);  TreeItem<String> polygonRelationships = new TreeItem<>("Polygon");  polygonRelationships.setExpanded(true);  rootItem.getChildren().addAll(Arrays.asList(pointRelationships, polylineRelationships, polygonRelationships));   // and a mouse click listener to identify the selected graphic  mapView.setOnMouseClicked(e -> {  if (e.isStillSincePress() && e.getButton() == MouseButton.PRIMARY) {  // identify the clicked graphic(s)  Point2D point2D = new Point2D(e.getX(), e.getY());  ListenableFuture<IdentifyGraphicsOverlayResult> identifyGraphics = mapView.identifyGraphicsOverlayAsync(graphicsOverlay,  point2D, 1, false);  identifyGraphics.addDoneListener(() -> {  try {  // get the first identified graphic  IdentifyGraphicsOverlayResult result = identifyGraphics.get();  List<Graphic> identifiedGraphics = result.getGraphics();  if (identifiedGraphics.size() > 0) {  // clear previous results  pointRelationships.getChildren().clear();  polylineRelationships.getChildren().clear();  polygonRelationships.getChildren().clear();   // select the identified graphic  graphicsOverlay.clearSelection();  Graphic identifiedGraphic = identifiedGraphics.get(0);  identifiedGraphic.setSelected(true);  Geometry selectedGeometry = identifiedGraphic.getGeometry();  GeometryType selectedGeometryType = selectedGeometry.getGeometryType();   // populate the tree 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) {  getSpatialRelationships(selectedGeometry, pointGraphic.getGeometry()).forEach(relationship ->  pointRelationships.getChildren().add(new TreeItem<>(relationship.toString())));  }  if (selectedGeometryType != GeometryType.POLYLINE) {  getSpatialRelationships(selectedGeometry, polylineGraphic.getGeometry()).forEach(relationship ->  polylineRelationships.getChildren().add(new TreeItem<>(relationship.toString())));  }  if (selectedGeometryType != GeometryType.POLYGON) {  getSpatialRelationships(selectedGeometry, polygonGraphic.getGeometry()).forEach(relationship ->  polygonRelationships.getChildren().add(new TreeItem<>(relationship.toString())));  }  }  } catch (InterruptedException | ExecutionException ex) {  ex.printStackTrace();  }  });  }  });   // add the map view and label box to the stack pane  stackPane.getChildren().addAll(mapView, relationships);  StackPane.setMargin(relationships, new Insets(10, 0, 0, 10));  StackPane.setAlignment(relationships, Pos.TOP_LEFT);  } catch (Exception e) {  // on any error, display the stack trace.  e.printStackTrace();  }  }   /**  * Gets a list of spatial relationships that the first geometry has to the second geometry.  *  * @param a first geometry  * @param b second geometry  * @return list of relationships a has to b  */  private List<SpatialRelationship> getSpatialRelationships(Geometry a, Geometry b) {  List<SpatialRelationship> relationships = new ArrayList<>();  if (GeometryEngine.crosses(a, b)) relationships.add(SpatialRelationship.CROSSES);  if (GeometryEngine.contains(a, b)) relationships.add(SpatialRelationship.CONTAINS);  if (GeometryEngine.disjoint(a, b)) relationships.add(SpatialRelationship.DISJOINT);  if (GeometryEngine.intersects(a, b)) relationships.add(SpatialRelationship.INTERSECTS);  if (GeometryEngine.overlaps(a, b)) relationships.add(SpatialRelationship.OVERLAPS);  if (GeometryEngine.touches(a, b)) relationships.add(SpatialRelationship.TOUCHES);  if (GeometryEngine.within(a, b)) relationships.add(SpatialRelationship.WITHIN);  return relationships;  }   /**  * Stops and releases all resources used in application.  */  @Override  public void stop() {   if (mapView != null) {  mapView.dispose();  }  }   /**  * Opens and runs application.  *  * @param args arguments passed to this application  */  public static void main(String[] args) {   Application.launch(args);  }  }