Create terrain from a local raster

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Set the terrain surface with elevation described by a raster file.

Image of create terrain from a local raster

Use case

In a scene view, the terrain surface is what the basemap, operational layers, and graphics are draped onto. For example, when viewing a scene in a mountainous region, applying a terrain surface to the scene will help in recognizing the slopes, valleys, and elevated areas.

How to use the sample

When loaded, the sample will show a scene with a terrain surface applied. Pan and zoom to explore the scene and observe how the terrain surface allows visualizing elevation differences.

How it works

  1. Create an ArcGISScene and add it to a SceneView.
  2. Create a RasterElevationSource with a list of raster file paths.
  3. Add this source to the scene's base surface: ArcGISScene.getBaseSurface().getElevationSources().add(RasterElevationSource).

Relevant API

  • RasterElevationSource
  • Surface

Additional information

Supported raster formats include:

  • ASRP/USRP
  • CIB1, 5, 10
  • DTED0, 1, 2
  • GeoTIFF
  • HFA
  • HRE
  • IMG
  • JPEG
  • JPEG 2000
  • NITF
  • PNG
  • RPF
  • SRTM1, 2

Tags

3D, elevation, raster, surface, terrain

Sample Code

CreateTerrainSurfaceFromLocalRasterSample.java
                                                                                                            
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/*
 * 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.create_terrain_surface_from_local_raster;

import java.io.File;
import java.util.Collections;
import java.util.List;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

import com.esri.arcgisruntime.mapping.ArcGISScene;
import com.esri.arcgisruntime.mapping.Basemap;
import com.esri.arcgisruntime.mapping.ElevationSource;
import com.esri.arcgisruntime.mapping.RasterElevationSource;
import com.esri.arcgisruntime.mapping.Surface;
import com.esri.arcgisruntime.mapping.view.Camera;
import com.esri.arcgisruntime.mapping.view.SceneView;

public class CreateTerrainSurfaceFromLocalRasterSample 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("Create Terrain Surface from Local Raster 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);

      // list paths to local raster(s)
      List<String> localDataFilePaths = Collections.singletonList(
          new File(System.getProperty("data.dir"), "./samples-data/monterey_elevation/MontereyElevation.dt2").getAbsolutePath()
      );

      // create an elevation source from the raster collection
      ElevationSource elevationSource = new RasterElevationSource(localDataFilePaths);

      // create a surface, adding the elevation source
      Surface surface = new Surface();
      surface.getElevationSources().add(elevationSource);
      // set the surface to the scene
      scene.setBaseSurface(surface);

      // specify the initial camera position
      Camera camera = new Camera(36.51, -121.80 , 300.0, 0, 70.0, 0.0);
      sceneView.setViewpointCamera(camera);
    } 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);
  }

}

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