Create and use a raster layer made from a local raster file.

Use case
Rasters can be digital aerial photographs, imagery from satellites, digital pictures, or even scanned maps. An end-user will frequently need to import raster files acquired through various data-collection methods into their map to view and analyze the data.
How to use the sample
When the sample starts, a raster will be loaded from a file and displayed in the map view.
How it works
- Create a
Rasterfrom a raster file. - Create a
RasterLayerfrom the raster. - Add it as an operational layer with
map.getOperationalLayers().add(rasterLayer).
Relevant API
- Raster
- RasterLayer
Additional information
See the topic What is raster data? in the ArcMap documentation for more information about raster images.
Tags
data, image, import, layer, raster, visualization
Sample Code
/* * Copyright 2022 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. */
module com.esri.samples.raster_layer_file { // require ArcGIS Maps SDK for Java module requires com.esri.arcgisruntime;
// handle SLF4J http://www.slf4j.org/codes.html#StaticLoggerBinder requires org.slf4j.nop;
// require JavaFX modules that the application uses requires javafx.graphics; requires javafx.controls;
exports com.esri.samples.raster_layer_file;}/* * 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_layer_file;
import java.io.File;
import javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.Alert;import javafx.scene.layout.StackPane;import javafx.stage.Stage;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;import com.esri.arcgisruntime.layers.RasterLayer;import com.esri.arcgisruntime.loadable.LoadStatus;import com.esri.arcgisruntime.mapping.ArcGISMap;import com.esri.arcgisruntime.mapping.BasemapStyle;import com.esri.arcgisruntime.mapping.view.MapView;import com.esri.arcgisruntime.raster.Raster;
public class RasterLayerFileSample extends Application {
private MapView mapView;
@Override public void start(Stage stage) {
try { // create stack pane and application scene StackPane stackPane = new StackPane(); Scene scene = new Scene(stackPane);
// set title, size, and add scene to stage stage.setTitle("Raster Layer File"); stage.setWidth(800); stage.setHeight(700); stage.setScene(scene); stage.show();
// 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 raster from a local raster file Raster raster = new Raster(new File(System.getProperty("data.dir"), "./samples-data/raster/Shasta.tif").getAbsolutePath());
// create a raster layer RasterLayer rasterLayer = new RasterLayer(raster);
// create a map with the standard imagery basemap style ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_IMAGERY_STANDARD);
// create a map view and set the map to it mapView = new MapView(); mapView.setMap(map);
// add the raster layer to the map's operational layers map.getOperationalLayers().add(rasterLayer);
// set viewpoint on the raster rasterLayer.addDoneLoadingListener(() -> { if (rasterLayer.getLoadStatus() == LoadStatus.LOADED) { mapView.setViewpointGeometryAsync(rasterLayer.getFullExtent(), 150); } else { Alert alert = new Alert(Alert.AlertType.ERROR, "Raster Layer Failed to Load!"); alert.show(); } });
// add the map view to stack pane stackPane.getChildren().addAll(mapView); } 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 (mapView != null) { mapView.dispose(); } }
/** * Opens and runs application. * * @param args arguments passed to this application */ public static void main(String[] args) {
Application.launch(args); }
}