Scene layer selection

View on GitHub
Sample viewer app

Identify features in a scene to select.

Image of scene layer selection

Use case

You can select features to visually distinguish them with a selection color or highlighting. This can be useful to demonstrate the physical extent or associated attributes of a feature, or to initiate another action such as centering that feature in the scene view.

How to use the sample

Click a building in the scene layer to select it. Deselect buildings by clicking away from the buildings.

How it works

  1. Create an ArcGISSceneLayer passing in the URL to a scene layer service.
  2. Use sceneView.setOnMouseClicked to get the screen click location Point2D.
  3. Call sceneView.identifyLayersAsync(sceneLayer, point2D, tolerance, false, 1) to identify features in the scene.
  4. From the resulting IdentifyLayerResult, get the list of identified GeoElements with result.getElements().
  5. Get the first element in the list, checking that it is a feature, and call sceneLayer.selectFeature(feature) to select it.

About the data

The scene shows a buildings layer in Brest, France hosted on ArcGIS Online.

Relevant API

  • ArcGISSceneLayer
  • Scene
  • SceneView

Tags

3D, Berlin, buildings, identify, model, query, search, select

Sample Code

SceneLayerSelectionSample.java
                                                                                                                                                       
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
/*
 * 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.scene_layer_selection;

import java.util.List;
import java.util.concurrent.ExecutionException;

import javafx.application.Application;
import javafx.geometry.Point2D;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.input.MouseButton;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

import com.esri.arcgisruntime.concurrent.ListenableFuture;
import com.esri.arcgisruntime.data.Feature;
import com.esri.arcgisruntime.layers.ArcGISSceneLayer;
import com.esri.arcgisruntime.loadable.LoadStatus;
import com.esri.arcgisruntime.mapping.ArcGISScene;
import com.esri.arcgisruntime.mapping.ArcGISTiledElevationSource;
import com.esri.arcgisruntime.mapping.Basemap;
import com.esri.arcgisruntime.mapping.GeoElement;
import com.esri.arcgisruntime.mapping.Surface;
import com.esri.arcgisruntime.mapping.view.Camera;
import com.esri.arcgisruntime.mapping.view.IdentifyLayerResult;
import com.esri.arcgisruntime.mapping.view.SceneView;

public class SceneLayerSelectionSample extends Application {

  private SceneView sceneView;

  @Override
  public void start(Stage stage) {

    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 Selection 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.createTopographic());

      // set the scene to the scene view
      sceneView = new SceneView();
      sceneView.setArcGISScene(scene);

      // set the initial viewpoint
      Camera camera = new Camera(48.378, -4.494, 200, 345, 65, 0);
      sceneView.setViewpointCamera(camera);

      // add the scene view to the stack pane
      stackPane.getChildren().add(sceneView);

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

      // add a scene layer of buildings in Brest, France
      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);

      // zoom to the layer's extent when loaded
      sceneLayer.addDoneLoadingListener(() -> {
        if (sceneLayer.getLoadStatus() == LoadStatus.LOADED) {

          // when the scene is clicked, identify the clicked feature and select it
          sceneView.setOnMouseClicked(e -> {
            if (e.isStillSincePress() && e.getButton() == MouseButton.PRIMARY) {
              // clear any previous selection
              sceneLayer.clearSelection();
              // identify clicked feature
              Point2D point2D = new Point2D(e.getX(), e.getY());
              ListenableFuture<IdentifyLayerResult> identify = sceneView.identifyLayerAsync(sceneLayer, point2D, 10, false, 1);
              identify.addDoneListener(() -> {
                try {
                  // get the identified result and check that it is a feature
                  IdentifyLayerResult result = identify.get();
                  List<GeoElement> geoElements = result.getElements();
                  if (geoElements.size() > 0) {
                    GeoElement geoElement = geoElements.get(0);
                    if (geoElement instanceof Feature) {
                      // select the feature
                      sceneLayer.selectFeature((Feature) geoElement);
                    }
                  }
                } catch (InterruptedException | ExecutionException ex) {
                  new Alert(Alert.AlertType.ERROR, "Error identifying features").show();
                }
              });
            }
          });
        } else {
          new Alert(Alert.AlertType.ERROR, "Error loading scene layer").show();
        }
      });

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

  /**
   * Stops and releases all resources used in application.
   */
  @Override
  public void stop() {

    if (sceneView != null) {
      sceneView.dispose();
    }
  }

  /**
   * Opens and runs application.
   *
   * @param args arguments passed to this application
   */
  public static void main(String[] args) {

    Application.launch(args);
  }

}

Your browser is no longer supported. Please upgrade your browser for the best experience. See our browser deprecation post for more details.