Java Surface类代码示例

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {

  try {

    // create stack pane and JavaFX app scene
    StackPane stackPane = new StackPane();
    Scene fxScene = new Scene(stackPane);

    // set title, size, and add JavaFX scene to stage
    stage.setTitle("Display Scene Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(fxScene);
    stage.show();

    // create a scene and add a basemap to it
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());

    // add the SceneView to the stack pane
    sceneView = new SceneView();
    sceneView.setArcGISScene(scene);
    stackPane.getChildren().addAll(sceneView);

    // add base surface for elevation data
    Surface surface = new Surface();
    surface.getElevationSources().add(new ArcGISTiledElevationSource(ELEVATION_IMAGE_SERVICE));
    scene.setBaseSurface(surface);

    // add a camera and initial camera position
    Camera camera = new Camera(28.4, 83.9, 10010.0, 10.0, 80.0, 0.0);
    sceneView.setViewpointCamera(camera);
  } catch (Exception e) {
    // on any error, display the stack trace.
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
public void initialize() {

    try {

      // create a scene and add a basemap to it
      ArcGISScene scene = new ArcGISScene();
      scene.setBasemap(Basemap.createNationalGeographic());

      // add the SceneView to the stack pane
      sceneView.setArcGISScene(scene);

      // add base surface for elevation data
      Surface surface = new Surface();
      final String elevationImageService =
          "http://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer";
      surface.getElevationSources().add(new ArcGISTiledElevationSource(elevationImageService));
      scene.setBaseSurface(surface);

      // set exaggeration of surface to the value the user selected
      exaggerationSlider.valueChangingProperty().addListener(o -> {
        if (!exaggerationSlider.isValueChanging()) {
          surface.setElevationExaggeration((float) exaggerationSlider.getValue());
        }
      });
      // add a camera and initial camera position
      Point initialLocation = new Point(-119.94891542688772, 46.75792111605992, 0, sceneView.getSpatialReference());
      Camera camera = new Camera(initialLocation, 15000.0, 40.0, 60.0, 0.0);
      sceneView.setViewpointCamera(camera);

    } catch (Exception e) {
      // on any exception, print the stack trace
      e.printStackTrace();
    }
  }
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
/**
 * Called after FXML loads. Sets up scene and map and configures property bindings.
 */
public void initialize() {

  try {
    // create a scene and add to view
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());
    sceneView.setArcGISScene(scene);

    // adds elevation to surface
    Surface surface = new Surface();
    surface.getElevationSources().add(new ArcGISTiledElevationSource(ELEVATION_IMAGE_SERVICE));
    scene.setBaseSurface(surface);

    createGraphics();

    // set viewpoint of camera above graphics
    Camera camera = new Camera(39, -101, 10000000, 10.0, 0.0, 0.0);
    sceneView.setViewpointCamera(camera);

    setupAnimation();

    // automatically updates distance between graphics to view
    distance = new SimpleLongProperty();
    txtDistance.textProperty().bind(distance.asString());
    // set beginning distance of two graphics
    distance.set(Math.round(calculateDirectLinearDistance(redPoint, greenPoint)));

  } catch (Exception e) {
    // on any error, display the stack trace.
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  // create a scene and add a basemap to it
  ArcGISScene scene = new ArcGISScene();
  scene.setBasemap(Basemap.createImagery());

  // add the scene to a scene view
  mSceneView = findViewById(R.id.sceneView);
  mSceneView.setScene(scene);

  // set the camera to the scene view
  Camera camera = new Camera(48.3808, -4.49492, 48.2511, 344.488, 74.1212, 0.0);
  mSceneView.setViewpointCamera(camera);

  // add base surface for elevation data to the scene view
  Surface surface = new Surface();
  ArcGISTiledElevationSource brestElevationSource = new ArcGISTiledElevationSource(getString(R.string.brest_dtm));
  surface.getElevationSources().add(brestElevationSource);
  scene.setBaseSurface(surface);

  // add a scene layer to the scene
  ArcGISSceneLayer brestBuildingLayer = new ArcGISSceneLayer(getString(R.string.brest_building_layer));
  scene.getOperationalLayers().add(brestBuildingLayer);

  // create a viewshed from the camera
  LocationViewshed viewshed = new LocationViewshed(camera, 1.0, 500.0);

  // create an analysis overlay to add the viewshed to the scene view
  AnalysisOverlay analysisOverlay = new AnalysisOverlay();
  analysisOverlay.getAnalyses().add(viewshed);
  mSceneView.getAnalysisOverlays().add(analysisOverlay);

  // create a button to update the viewshed with the current camera
  Button cameraButton = findViewById(R.id.updateViewshedButton);
  cameraButton.setOnClickListener(view -> viewshed.updateFromCamera(mSceneView.getCurrentViewpointCamera()));
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {

  try {

    // create stack pane and JavaFX app scene
    StackPane stackPane = new StackPane();
    Scene fxScene = new Scene(stackPane);

    // set title, size, and add JavaFX scene to stage
    stage.setTitle("Symbols Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(fxScene);
    stage.show();

    // create a scene and add a basemap to it
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());

    // add the SceneView to the stack pane
    sceneView = new SceneView();
    sceneView.setArcGISScene(scene);
    stackPane.getChildren().add(sceneView);

    // add a camera and initial camera position
    Camera camera = new Camera(29, 45, 6000, 0, 0, 0);
    sceneView.setViewpointCamera(camera);
    Point cameraLocation = camera.getLocation();

    // add base surface for elevation data
    ArcGISTiledElevationSource elevationSource = new ArcGISTiledElevationSource(ELEVATION_IMAGE_SERVICE);
    Surface surface = new Surface();
    surface.getElevationSources().add(elevationSource);
    scene.setBaseSurface(surface);

    // add graphics overlay(s)
    GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
    graphicsOverlay.getSceneProperties().setSurfacePlacement(LayerSceneProperties.SurfacePlacement.ABSOLUTE);
    sceneView.getGraphicsOverlays().add(graphicsOverlay);

    // create graphics for each type of symbol
    AtomicInteger counter = new AtomicInteger(0);
    double x = 44.975;
    double y = 29;
    double z = 500;
    Stream.of(SimpleMarkerSceneSymbol.Style.values()).map(style -> {
      int color;
      switch (style) {
        case CONE:
          color = 0xFFFF0000; // red
          break;
        case TETRAHEDRON:
          color = 0xFF00FF00; // green
          break;
        case SPHERE:
          color = 0xFF0000FF; // blue
          break;
        case CYLINDER:
          color = 0xFFFF00FF; // purple
          break;
        case DIAMOND:
          color = 0xFF00FFFF; // turquoise
          break;
        case CUBE:
        default:
          color = 0xFFFFFFFF; // white
      }
      SimpleMarkerSceneSymbol symbol = new SimpleMarkerSceneSymbol(style, color, 200, 200, 200,
          SceneSymbol.AnchorPosition.CENTER);
      int position = counter.getAndIncrement();
      return new Graphic(new Point(x + 0.01 * position, y, z, cameraLocation.getSpatialReference()), symbol);
    }).collect(Collectors.toCollection(graphicsOverlay::getGraphics));

  } catch (Exception e) {
    // on any error, display the stack trace
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {

  try {

    // create stack pane and JavaFX app scene
    StackPane stackPane = new StackPane();
    Scene fxScene = new Scene(stackPane);

    // set title, size, and add JavaFX scene to stage
    stage.setTitle("Scene Layer Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(fxScene);
    stage.show();

    // create a scene and add a basemap to it
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());

    // add the SceneView to the stack pane
    sceneView = new SceneView();
    sceneView.setArcGISScene(scene);
    stackPane.getChildren().addAll(sceneView);

    // add base surface for elevation data
    Surface surface = new Surface();
    final String localEvelationImageService = "http://scene.arcgis.com/arcgis/rest/services/BREST_DTM_1M/ImageServer";
    surface.getElevationSources().add(new ArcGISTiledElevationSource(localEvelationImageService));
    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);

    // add a camera and initial camera position (Brest, France)
    Camera camera = new Camera(48.37, -4.50, 1000.0, 10.0, 70, 0.0);
    sceneView.setViewpointCamera(camera);

  } catch (Exception e) {
    // on any error, display the stack trace.
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {

  try {

    // create stack pane and JavaFX app scene
    StackPane stackPane = new StackPane();
    Scene fxScene = new Scene(stackPane);

    // set title, squareSize, and add JavaFX scene to stage
    stage.setTitle("Extrude Graphics Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(fxScene);
    stage.show();

    // create a scene and add a basemap to it
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());

    // add the SceneView to the stack pane
    sceneView = new SceneView();
    sceneView.setArcGISScene(scene);
    stackPane.getChildren().add(sceneView);

    Camera camera = new Camera(28.4, 83, 10000, 10.0, 80.0, 0);
    sceneView.setViewpointCamera(camera);

    // add base surface for elevation data
    Surface surface = new Surface();
    surface.getElevationSources().add(new ArcGISTiledElevationSource(ELEVATION_IMAGE_SERVICE));
    scene.setBaseSurface(surface);

    // add a graphics overlay
    GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
    graphicsOverlay.getSceneProperties().setSurfacePlacement(LayerSceneProperties.SurfacePlacement.DRAPED);

    // set renderer with extrusion property
    SimpleRenderer renderer = new SimpleRenderer();
    SceneProperties renderProperties = renderer.getSceneProperties();
    renderProperties.setExtrusionMode(SceneProperties.ExtrusionMode.BASE_HEIGHT);
    renderProperties.setExtrusionExpression("[HEIGHT]");
    graphicsOverlay.setRenderer(renderer);

    // setup graphic positions
    double squareSize = 0.01;
    double maxHeight = 10000.0;
    double x = camera.getLocation().getX();
    double y = camera.getLocation().getY() + 0.2;
    List<Point> points = IntStream.range(0, 100).mapToObj(i -> new Point(i / 10 * squareSize + x, i % 10 *
        squareSize + y)).collect(Collectors.toList());

    // create and style graphics
    points.forEach(p -> {
      double z = (int) (maxHeight * Math.random());
      int color = ColorUtil.colorToArgb(Color.color(1.0 / maxHeight * z, 0, 0.5, 1));
      Polygon polygon = new Polygon(new PointCollection(Arrays.asList(new Point(p.getX(), p.getY(), z), new Point(p
          .getX() + squareSize, p.getY(), z), new Point(p.getX() + squareSize, p.getY() + squareSize, z), new Point(p
              .getX(), p.getY() + squareSize, z))));
      Graphic graphic = new Graphic(polygon);
      graphic.getAttributes().put("HEIGHT", z);
      graphic.setSymbol(new SimpleFillSymbol(SimpleFillSymbol.Style.SOLID, color, null));
      graphicsOverlay.getGraphics().add(graphic);
    });

    sceneView.getGraphicsOverlays().add(graphicsOverlay);
  } catch (Exception e) {
    // on any error, display the stack trace
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {

  try {

    // create stack pane and JavaFX app scene
    StackPane stackPane = new StackPane();
    Scene fxScene = new Scene(stackPane);

    // set title, size, and add JavaFX scene to stage
    stage.setTitle("Distance Composite Symbol Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(fxScene);
    stage.show();

    // create a scene and add a basemap to it
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());

    // add the SceneView to the stack pane
    sceneView = new SceneView();
    sceneView.setArcGISScene(scene);
    stackPane.getChildren().addAll(sceneView);

    // add base surface for elevation data
    Surface surface = new Surface();
    surface.getElevationSources().add(new ArcGISTiledElevationSource(ELEVATION_IMAGE_SERVICE));
    scene.setBaseSurface(surface);

    // add a graphics overlay
    GraphicsOverlay graphicsOverlay = new GraphicsOverlay();
    graphicsOverlay.getSceneProperties().setSurfacePlacement(LayerSceneProperties.SurfacePlacement.RELATIVE);
    sceneView.getGraphicsOverlays().add(graphicsOverlay);

    // set up the different symbols
    int red = 0xFFFF0000;
    SimpleMarkerSymbol circleSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, red, 10);
    SimpleMarkerSceneSymbol coneSymbol = SimpleMarkerSceneSymbol.createCone(red, 3, 10);
    coneSymbol.setPitch(-90);
    coneSymbol.setAnchorPosition(AnchorPosition.CENTER);
    String modelURI = new File("./samples-data/bristol/Collada/Bristol.dae").getAbsolutePath();
    ModelSceneSymbol modelSymbol = new ModelSceneSymbol(modelURI, 1.0);
    modelSymbol.loadAsync();

    // set up the distance composite symbol
    DistanceCompositeSceneSymbol compositeSymbol = new DistanceCompositeSceneSymbol();
    compositeSymbol.getRangeCollection().add(new DistanceCompositeSceneSymbol.Range(modelSymbol, 0, 100));
    compositeSymbol.getRangeCollection().add(new DistanceCompositeSceneSymbol.Range(coneSymbol, 100, 500));
    compositeSymbol.getRangeCollection().add(new DistanceCompositeSceneSymbol.Range(circleSymbol, 500, 0));

    // create graphic
    Point aircraftPosition = new Point(-2.708471, 56.096575, 5000, SpatialReferences.getWgs84());
    Graphic aircraftGraphic = new Graphic(aircraftPosition, compositeSymbol);
    // add graphic to graphics overlay
    graphicsOverlay.getGraphics().add(aircraftGraphic);

    // add a camera and initial camera position
    Camera camera = new Camera(aircraftPosition, 20, 0, 70.0, 0.0);
    sceneView.setViewpointCamera(camera);
  } catch (Exception e) {
    // on any error, display the stack trace.
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
public void start(Stage stage) throws Exception {

  try {

    // create stack pane and JavaFX app scene
    StackPane stackPane = new StackPane();
    Scene fxScene = new Scene(stackPane);

    // set title, size, and add JavaFX scene to stage
    stage.setTitle("Elevation Mode Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(fxScene);
    stage.show();

    // create a scene and add a basemap to it
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());

    // add the SceneView to the stack pane
    sceneView = new SceneView();
    sceneView.setArcGISScene(scene);
    stackPane.getChildren().add(sceneView);

    // add a camera and initial camera position
    Camera camera = new Camera(53.04, -4.04, 1300, 0, 90.0, 0);
    sceneView.setViewpointCamera(camera);

    // add base surface for elevation data
    Surface surface = new Surface();
    surface.getElevationSources().add(new ArcGISTiledElevationSource(ELEVATION_IMAGE_SERVICE));
    scene.setBaseSurface(surface);

    // create overlays with elevation modes
    GraphicsOverlay drapedOverlay = new GraphicsOverlay();
    drapedOverlay.getSceneProperties().setSurfacePlacement(SurfacePlacement.DRAPED);
    sceneView.getGraphicsOverlays().add(drapedOverlay);
    GraphicsOverlay relativeOverlay = new GraphicsOverlay();
    relativeOverlay.getSceneProperties().setSurfacePlacement(SurfacePlacement.RELATIVE);
    sceneView.getGraphicsOverlays().add(relativeOverlay);
    GraphicsOverlay absoluteOverlay = new GraphicsOverlay();
    absoluteOverlay.getSceneProperties().setSurfacePlacement(SurfacePlacement.ABSOLUTE);
    sceneView.getGraphicsOverlays().add(absoluteOverlay);

    // create point for graphic location
    Point point = new Point(-4.04, 53.06, 1000, camera.getLocation().getSpatialReference());

    // create a red (0xFFFF0000) circle symbol
    SimpleMarkerSymbol circleSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, 0xFFFF0000, 10);

    // create a text symbol for each elevation mode
    TextSymbol drapedText = new TextSymbol(10, "DRAPED", 0xFFFFFFFF, HorizontalAlignment.LEFT,
        VerticalAlignment.MIDDLE);
    TextSymbol relativeText = new TextSymbol(10, "RELATIVE", 0xFFFFFFFF, HorizontalAlignment.LEFT,
        VerticalAlignment.MIDDLE);
    TextSymbol absoluteText = new TextSymbol(10, "ABSOLUTE", 0xFFFFFFFF, HorizontalAlignment.LEFT,
        VerticalAlignment.MIDDLE);

    // add the point graphic and text graphic to the corresponding graphics
    // overlay
    drapedOverlay.getGraphics().add(new Graphic(point, circleSymbol));
    drapedOverlay.getGraphics().add(new Graphic(point, drapedText));

    relativeOverlay.getGraphics().add(new Graphic(point, circleSymbol));
    relativeOverlay.getGraphics().add(new Graphic(point, relativeText));

    absoluteOverlay.getGraphics().add(new Graphic(point, circleSymbol));
    absoluteOverlay.getGraphics().add(new Graphic(point, absoluteText));

  } catch (Exception e) {
    // on any error, display the stack trace
    e.printStackTrace();
  }
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  // set initial values
  mMinDistance = mInitMinDistance;
  mMaxDistance = mInitMaxDistance;

  // create a scene and add an imagery basemap to it
  mSceneView = findViewById(R.id.sceneView);
  ArcGISScene scene = new ArcGISScene();
  scene.setBasemap(Basemap.createImagery());
  mSceneView.setScene(scene);

  // add base surface for elevation data
  Surface surface = new Surface();
  final String localElevationImageService = getString(
      com.esri.arcgisruntime.sample.viewshedlocation.R.string.elevation_service);
  surface.getElevationSources().add(new ArcGISTiledElevationSource(localElevationImageService));
  scene.setBaseSurface(surface);

  // add a scene layer
  final String buildings = getString(com.esri.arcgisruntime.sample.viewshedlocation.R.string.buildings_layer);
  ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(buildings);
  scene.getOperationalLayers().add(sceneLayer);

  // create viewshed from location
  Point location = new Point(-4.50, 48.4, 100.0);
  Viewshed.setFrustumOutlineColor(Color.BLUE);
  mViewshed = new LocationViewshed(location, mInitHeading, mInitPitch, mInitHorizontalAngle, mInitVerticalAngle,
      mInitMinDistance, mInitMaxDistance);
  mViewshed.setFrustumOutlineVisible(true);

  // add a camera and set it to orbit the location point
  Camera camera = new Camera(location, 20000000, 0, 55, 0);
  OrbitLocationCameraController orbitCamera = new OrbitLocationCameraController(location, 5000);
  mSceneView.setCameraController(orbitCamera);
  mSceneView.setViewpointCamera(camera);

  // create an analysis overlay to add the mViewshed to the scene view
  AnalysisOverlay analysisOverlay = new AnalysisOverlay();
  analysisOverlay.getAnalyses().add(mViewshed);
  mSceneView.getAnalysisOverlays().add(analysisOverlay);

  handleUiElements();
}
 

import com.esri.arcgisruntime.mapping.Surface; //导入依赖的package包/类
public void initialize() {

    // create a scene
    ArcGISScene scene = new ArcGISScene();
    scene.setBasemap(Basemap.createImagery());
    sceneView.setArcGISScene(scene);

    // add base surface for elevation data
    String surfaceURL = "http://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer";
    Surface surface = new Surface();
    surface.getElevationSources().add(new ArcGISTiledElevationSource(surfaceURL));
    scene.setBaseSurface(surface);

    // add a camera
    Camera camera = new Camera(33.98, -117.177526, 5000, 0, 70, 0.0);
    sceneView.setViewpointCamera(camera);

    // get features from an online feature layer
    String pointsURL = "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Sync/WildfireSync/FeatureServer/0";
    pointsFeatureTable = new ServiceFeatureTable(pointsURL);
    FeatureLayer pointsFeatureLayer = new FeatureLayer(pointsFeatureTable);
    scene.getOperationalLayers().add(pointsFeatureLayer);

    String polysURL = "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Sync/WildfireSync/FeatureServer/2";
    polysFeatureTable = new ServiceFeatureTable(polysURL);
    FeatureLayer polysFeatureLayer = new FeatureLayer(polysFeatureTable);
    scene.getOperationalLayers().add(polysFeatureLayer);

    // add graphics overlays
    groundGraphicsOverlay = new GraphicsOverlay();
    groundGraphicsOverlay.getSceneProperties().setSurfacePlacement(LayerSceneProperties.SurfacePlacement.DRAPED);
    sceneView.getGraphicsOverlays().add(groundGraphicsOverlay);

    buildingGraphicsOverlay = new GraphicsOverlay();
    SimpleRenderer renderer = new SimpleRenderer();
    Renderer.SceneProperties renderProperties = renderer.getSceneProperties();
    renderProperties.setExtrusionMode(Renderer.SceneProperties.ExtrusionMode.BASE_HEIGHT);
    renderProperties.setExtrusionExpression("height");
    buildingGraphicsOverlay.setRenderer(renderer);
    buildingGraphicsOverlay.getSceneProperties().setSurfacePlacement(LayerSceneProperties.SurfacePlacement.RELATIVE);
    sceneView.getGraphicsOverlays().add(buildingGraphicsOverlay);

    airGraphicsOverlay = new GraphicsOverlay();
    airGraphicsOverlay.getSceneProperties().setSurfacePlacement(LayerSceneProperties.SurfacePlacement.ABSOLUTE);
    sceneView.getGraphicsOverlays().add(airGraphicsOverlay);

    // create an online geolocator task
    String locatorURL = "http://geocode.arcgis.com/arcgis/rest/services/World/GeocodeServer";
    locatorTask = new LocatorTask(locatorURL);
  }