Show a simple marker symbol on a map.

Use case
Customize the appearance of a point suitable for the data. For example, a point on the map styled with a circle could represent a drilled borehole location, whereas a cross could represent the location of an old coal mine shaft.
How to use the sample
The sample loads with a predefined simple marker symbol, set as a red circle.
How it works
- Create a
SimpleMarkerSymbol. - Create a
Graphicpassing in aPointand the simple marker symbol as parameters. - Add the graphic to the graphics overlay with
graphicsOverlay.getGraphics().add(graphic).
Relevant API
- Graphic
- GraphicsOverlay
- Point
- SimpleMarkerSymbol
Tags
symbol, 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.simple_marker_symbol { // 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.simple_marker_symbol;}/* * 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.simple_marker_symbol;
import javafx.application.Application;import javafx.scene.Scene;import javafx.scene.layout.StackPane;import javafx.scene.paint.Color;import javafx.stage.Stage;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;import com.esri.arcgisruntime.geometry.Point;import com.esri.arcgisruntime.geometry.SpatialReferences;import com.esri.arcgisruntime.mapping.ArcGISMap;import com.esri.arcgisruntime.mapping.BasemapStyle;import com.esri.arcgisruntime.mapping.Viewpoint;import com.esri.arcgisruntime.mapping.view.Graphic;import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;import com.esri.arcgisruntime.mapping.view.MapView;import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
public class SimpleMarkerSymbolSample 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);
// size the stage, add a title, and set scene to stage stage.setTitle("Simple Marker Symbol 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 standard imagery basemap style final ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_IMAGERY_STANDARD);
// create a map view and set the map to it mapView = new MapView(); mapView.setMap(map);
// set a viewpoint to the map view centered on a point Point point = new Point(-226773, 6550477, SpatialReferences.getWebMercator()); mapView.setViewpoint(new Viewpoint(point, 7200));
// create new graphics overlay and add it to the map view GraphicsOverlay graphicsOverlay = new GraphicsOverlay(); mapView.getGraphicsOverlays().add(graphicsOverlay);
// create a red simple marker symbol SimpleMarkerSymbol symbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, Color.RED, 12);
// create a new graphic with a our point and symbol Graphic graphic = new Graphic(point, symbol); graphicsOverlay.getGraphics().add(graphic);
// add the map view and control box 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() {
// release resources when the application closes 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); }
}