Reverse geocode online

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 /*  * Copyright 2017 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.reverse_geocode_online;  import java.util.HashMap; import java.util.List;  import javafx.application.Application; import javafx.application.Platform; import javafx.geometry.Point2D; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Alert; import javafx.scene.control.ProgressIndicator; import javafx.scene.image.Image; import javafx.scene.input.MouseButton; import javafx.scene.layout.StackPane; import javafx.stage.Stage; import javafx.util.Duration;  import com.esri.arcgisruntime.ArcGISRuntimeEnvironment; import com.esri.arcgisruntime.concurrent.ListenableFuture; import com.esri.arcgisruntime.geometry.Point; import com.esri.arcgisruntime.mapping.ArcGISMap; import com.esri.arcgisruntime.mapping.BasemapStyle; import com.esri.arcgisruntime.mapping.Viewpoint; import com.esri.arcgisruntime.mapping.view.Callout; import com.esri.arcgisruntime.mapping.view.Callout.LeaderPosition; import com.esri.arcgisruntime.mapping.view.Graphic; import com.esri.arcgisruntime.mapping.view.GraphicsOverlay; import com.esri.arcgisruntime.mapping.view.MapView; import com.esri.arcgisruntime.symbology.PictureMarkerSymbol; import com.esri.arcgisruntime.tasks.geocode.GeocodeResult; import com.esri.arcgisruntime.tasks.geocode.LocatorTask; import com.esri.arcgisruntime.tasks.geocode.ReverseGeocodeParameters;  public class ReverseGeocodeOnlineSample extends Application {   private MapView mapView;  private LocatorTask locatorTask;  private GraphicsOverlay graphicsOverlay;  private PictureMarkerSymbol pinSymbol;  private ProgressIndicator progressIndicator;   @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("Reverse Geocode Online 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);   // add a progress indicator  progressIndicator = new ProgressIndicator(ProgressIndicator.INDETERMINATE_PROGRESS);  progressIndicator.setMaxSize(40, 40);  progressIndicator.setStyle("-fx-progress-color: white;");  progressIndicator.setVisible(false);   // create a map with the imagery basemap style  ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_IMAGERY);   // create a map view and set the map to it  mapView = new MapView();  mapView.setMap(map);   // set a viewpoint on the map view  mapView.setViewpoint(new Viewpoint(40, -95, 36978595));   // add a graphics overlay  graphicsOverlay = new GraphicsOverlay();  mapView.getGraphicsOverlays().add(graphicsOverlay);   // set the callout's default style  Callout callout = mapView.getCallout();  callout.setLeaderPosition(LeaderPosition.BOTTOM);   // create a locator task  locatorTask = new LocatorTask("https://geocode-api.arcgis.com/arcgis/rest/services/World/GeocodeServer");   // create geocode task parameters  ReverseGeocodeParameters reverseGeocodeParameters = new ReverseGeocodeParameters();  reverseGeocodeParameters.setOutputSpatialReference(mapView.getSpatialReference());   // create a pin graphic  Image img = new Image(getClass().getResourceAsStream("/pin.png"), 0, 80, true, true);  pinSymbol = new PictureMarkerSymbol(img);  pinSymbol.loadAsync();   // get geocode on click  mapView.setOnMouseClicked(evt -> {  // check that the primary mouse button was clicked and user is not  // panning  if (evt.isStillSincePress() && evt.getButton() == MouseButton.PRIMARY) {   // create a point from where the user clicked  Point2D point = new Point2D(evt.getX(), evt.getY());   // create a map point from a point  Point mapPoint = mapView.screenToLocation(point);   // show progress indicator  progressIndicator.setVisible(true);   // run the locator geocode task  ListenableFuture<List<GeocodeResult>> results = locatorTask.reverseGeocodeAsync(mapPoint,  reverseGeocodeParameters);   // add a listener to display the result when loaded  results.addDoneListener(() -> {  try {  List<GeocodeResult> geocodes = results.get();   if (geocodes.size() > 0) {  // get the top result  GeocodeResult geocode = geocodes.get(0);   // set the viewpoint to the marker  Point location = geocode.getDisplayLocation();  mapView.setViewpointCenterAsync(location);   // get attributes from the result for the callout  String address = geocode.getAttributes().get("Match_addr").toString();  HashMap<String, Object> attributes = new HashMap<>();  attributes.put("title", address.split(",")[0]);  attributes.put("detail", address.substring(address.indexOf(", ") + 2));   // create the marker  Graphic marker = new Graphic(geocode.getDisplayLocation(), attributes, pinSymbol);   // update the marker  Platform.runLater(() -> {  // clear out previous results  graphicsOverlay.getGraphics().clear();   // add the marker to the graphics overlay  graphicsOverlay.getGraphics().add(marker);   // stop the progress indicator  progressIndicator.setVisible(false);   // display the callout  callout.setTitle(marker.getAttributes().get("title").toString());  callout.setDetail(marker.getAttributes().get("detail").toString());  callout.showCalloutAt(location, new Point2D(0, -24), Duration.ZERO);  });  }  } catch (Exception e) {  // handle address not found  progressIndicator.setVisible(false);  Platform.runLater(() -> {  Alert alert = new Alert(Alert.AlertType.INFORMATION);  alert.setHeaderText(null);  alert.setContentText("No address found at this location");  alert.showAndWait();  });  }  });  }  });   // add map view and control panel to stack pane  stackPane.getChildren().addAll(mapView, progressIndicator);  StackPane.setAlignment(progressIndicator, Pos.BOTTOM_LEFT);   } catch (Exception e) {  // on any error, print the stack trace  e.printStackTrace();  }  }   /**  * Stops and releases all resources used in application.  */  @Override  public void stop() {   // release resources when the application closes  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);  }  }