Viewshed location

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 /*  * 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.viewshed_location;  import java.util.concurrent.ExecutionException;  import javafx.beans.binding.Bindings; import javafx.event.EventHandler; import javafx.fxml.FXML; import javafx.geometry.Point2D; import javafx.scene.control.Slider; import javafx.scene.control.ToggleButton; import javafx.scene.input.MouseButton; import javafx.scene.input.MouseEvent; import javafx.scene.paint.Color;  import com.esri.arcgisruntime.ArcGISRuntimeEnvironment; import com.esri.arcgisruntime.geoanalysis.LocationViewshed; import com.esri.arcgisruntime.geoanalysis.Viewshed; import com.esri.arcgisruntime.concurrent.ListenableFuture; import com.esri.arcgisruntime.geometry.Point; import com.esri.arcgisruntime.geometry.PointBuilder; import com.esri.arcgisruntime.layers.ArcGISSceneLayer; import com.esri.arcgisruntime.mapping.ArcGISScene; import com.esri.arcgisruntime.mapping.ArcGISTiledElevationSource; import com.esri.arcgisruntime.mapping.BasemapStyle; import com.esri.arcgisruntime.mapping.Surface; import com.esri.arcgisruntime.mapping.view.AnalysisOverlay; import com.esri.arcgisruntime.mapping.view.Camera; import com.esri.arcgisruntime.mapping.view.SceneView;  public class ViewshedLocationController {   @FXML private SceneView sceneView;  @FXML private ToggleButton visibilityToggle;  @FXML private ToggleButton frustumToggle;  @FXML private Slider headingSlider;  @FXML private Slider pitchSlider;  @FXML private Slider horizontalAngleSlider;  @FXML private Slider verticalAngleSlider;  @FXML private Slider minDistanceSlider;  @FXML private Slider maxDistanceSlider;   public void initialize() {   // 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 scene with a basemap style and set it to the scene view  ArcGISScene scene = new ArcGISScene(BasemapStyle.ARCGIS_IMAGERY);  sceneView.setArcGISScene(scene);   // add base surface for elevation data  Surface surface = new Surface();  final String elevationImageService = "https://elevation3d.arcgis.com" +  "/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer";  surface.getElevationSources().add(new ArcGISTiledElevationSource(elevationImageService));  scene.setBaseSurface(surface);   // add a scene layer  final String buildings = "http://tiles.arcgis.com/tiles/P3ePLMYs2RVChkJx/arcgis/rest/services/Buildings_Brest/SceneServer/layers/0";  ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(buildings);  scene.getOperationalLayers().add(sceneLayer);   // create a viewshed from the camera  Point location = new Point(-4.50, 48.4,100.0);  LocationViewshed viewshed = new LocationViewshed(location, headingSlider.getValue(), pitchSlider.getValue(),  horizontalAngleSlider.getValue(), verticalAngleSlider.getValue(), minDistanceSlider.getValue(),  maxDistanceSlider.getValue());  // set the colors of the visible and obstructed areas  Viewshed.setVisibleColor(Color.rgb(0, 255, 0, 0.8));  Viewshed.setObstructedColor(Color.rgb(255, 0, 0, 0.8));  // set the color and show the frustum outline  Viewshed.setFrustumOutlineColor(Color.rgb(0, 0, 255, 0.8));  viewshed.setFrustumOutlineVisible(true);   // set the camera  Camera camera = new Camera(location, 200.0, 20.0, 70.0, 0.0);  sceneView.setViewpointCamera(camera);   // create an analysis overlay to add the viewshed to the scene view  AnalysisOverlay analysisOverlay = new AnalysisOverlay();  analysisOverlay.getAnalyses().add(viewshed);  sceneView.getAnalysisOverlays().add(analysisOverlay);   // create a listener to update the viewshed location when the mouse moves  EventHandler<MouseEvent> mouseMoveEventHandler = new EventHandler<MouseEvent>() {  @Override  public void handle(MouseEvent event) {  Point2D point2D = new Point2D(event.getX(), event.getY());  ListenableFuture<Point> pointFuture = sceneView.screenToLocationAsync(point2D);  pointFuture.addDoneListener(() -> {  try {  Point point = pointFuture.get();  PointBuilder pointBuilder = new PointBuilder(point);  pointBuilder.setZ(point.getZ() + 50.0);  viewshed.setLocation(pointBuilder.toGeometry());  // add listener back  sceneView.setOnMouseMoved(this);  } catch (InterruptedException | ExecutionException e) {  e.printStackTrace();  }  });  // disable listener until location is updated (for performance)  sceneView.setOnMouseMoved(null);  }  };  // remove the default listener for mouse move events  sceneView.setOnMouseMoved(null);   // click to start/stop moving viewshed with mouse  sceneView.setOnMouseClicked(event -> {  if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {  if (sceneView.getOnMouseMoved() == null) {  sceneView.setOnMouseMoved(mouseMoveEventHandler);  } else {  sceneView.setOnMouseMoved(null);  }  }  });   // toggle visibility  visibilityToggle.selectedProperty().addListener(e -> viewshed.setVisible(visibilityToggle.isSelected()));  visibilityToggle.textProperty().bind(Bindings.createStringBinding(() -> visibilityToggle.isSelected() ? "ON" :  "OFF", visibilityToggle.selectedProperty()));  frustumToggle.selectedProperty().addListener(e -> viewshed.setFrustumOutlineVisible(frustumToggle.isSelected()));  frustumToggle.textProperty().bind(Bindings.createStringBinding(() -> frustumToggle.isSelected() ? "ON" :  "OFF", frustumToggle.selectedProperty()));  // heading slider  headingSlider.valueProperty().addListener(e -> viewshed.setHeading(headingSlider.getValue()));  // pitch slider  pitchSlider.valueProperty().addListener(e -> viewshed.setPitch(pitchSlider.getValue()));  // horizontal angle slider  horizontalAngleSlider.valueProperty().addListener(e -> viewshed.setHorizontalAngle(horizontalAngleSlider.getValue()));  // vertical angle slider  verticalAngleSlider.valueProperty().addListener(e -> viewshed.setVerticalAngle(verticalAngleSlider  .getValue()));  // distance sliders  minDistanceSlider.valueProperty().addListener(e -> viewshed.setMinDistance(minDistanceSlider.getValue()));  maxDistanceSlider.valueProperty().addListener(e -> viewshed.setMaxDistance(maxDistanceSlider.getValue()));  }   /**  * Stops the animation and disposes of application resources.  */  void terminate() {   if (sceneView != null) {  sceneView.dispose();  }  } }