Display a basemap centered at an initial location and scale.

Use case
You can set a map’s initial location when you want to highlight a particular feature or area to establish the context.
How to use the sample
When the map loads, note the specific location and scale of the initial map view.
How it works
- Create an
ArcGISMap, specifying a basemap style. - Display the map in a map view.
- Set a
Viewpointon the map view, specifying the latitude, longitude and scale.
Relevant API
- ArcGISMap
- BasemapStyle
- MapView
- Viewpoint
About the data
The map opens with a basemap centred over East Scotland.
Tags
basemap, center, envelope, extent, initial, lat, latitude, level of detail, location, LOD, long, longitude, scale, zoom level
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.set_initial_map_location { // 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;
exports com.esri.samples.set_initial_map_location;}/* * 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.set_initial_map_location;
import javafx.application.Application;import javafx.scene.Scene;import javafx.scene.layout.StackPane;import javafx.stage.Stage;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;import com.esri.arcgisruntime.mapping.ArcGISMap;import com.esri.arcgisruntime.mapping.BasemapStyle;import com.esri.arcgisruntime.mapping.Viewpoint;import com.esri.arcgisruntime.mapping.view.MapView;
public class SetInitialMapLocationSample 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("Set Initial Map Location Sample"); 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 map with the navigation basemap style ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_NAVIGATION);
// create a map view and set the map to it mapView = new MapView(); mapView.setMap(map);
// set a viewpoint on the map view specifying latitude, longitude and scale mapView.setViewpoint(new Viewpoint(56.075844, -2.681572, 577790));
// add the map view to stack pane stackPane.getChildren().add(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); }
}