ArcGIS Runtime SDK for Java

Blend Renderer

Demonstrates how to use a blend renderer on a raster layer. Blend renderers can be used to blend elevation data with imagery, creating a 3D effect.

How it works

To apply a BlendRenderer to a RasterLayer:

  1. Create a Raster from a raster file.
  2. Create a RasterLayer from the raster.
  3. Create a Basemap from the raster layer and set it to the map.
  4. Create a Raster for elevation from a grayscale raster file.
  5. Create a BlendRenderer, specifying the elevation raster, color ramp, and other properties.

    • If you specify a non-null color ramp, use the elevation raster as the base raster in addition to the elevation raster parameter. That way the color ramp is used instead of the satellite imagery.
  6. Set the renderer on the raster layer with rasterLayer.setRenderer(renderer).

Code

/*
 * 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.raster.blend_renderer;

import java.io.IOException;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class BlendRendererSample extends Application {

  private static BlendRendererController controller;

  @Override
  public void start(Stage stage) throws IOException {
    // set up the scene
    FXMLLoader loader = new FXMLLoader(getClass().getResource("/fxml/blend_renderer.fxml"));
    Parent root = loader.load();
    controller = loader.getController();
    Scene scene = new Scene(root);

    // set up the stage
    stage.setTitle("Blend Renderer Sample");
    stage.setWidth(800);
    stage.setHeight(700);
    stage.setScene(scene);
    stage.show();
  }

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

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

    Application.launch(args);
  }
}


In this topic
  1. How it works
  2. Code