Terrain exaggeration

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/*
 * 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.terrain_exaggeration;

import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;

import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.geometry.Point;
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.Camera;
import com.esri.arcgisruntime.mapping.view.SceneView;

public class TerrainExaggerationController {

  @FXML private Label exaggerationLabel;
  @FXML private SceneView sceneView;
  @FXML private Slider exaggerationSlider;
  private Surface surface;

  public void initialize() {

    try {

      // 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
      ArcGISScene scene = new ArcGISScene(BasemapStyle.ARCGIS_STREETS_RELIEF);

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

      // add base surface for elevation data
      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 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();
    }
  }

  /**
   * Sets the elevation exaggeration to the float chosen via the JavaFX slider.
   */
  @FXML
  private void changeElevationExaggeration() {
    exaggerationLabel.setText("Exaggeration: " + (double) Math.round(exaggerationSlider.getValue() * 100d) / 100d);
    surface.setElevationExaggeration((float) exaggerationSlider.getValue());
  }

  /**
   * Disposes application resources.
   */
  void terminate() {
    if (sceneView != null) {
      sceneView.dispose();
    }
  }
}