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Add graphics with symbols

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Use a symbol style to display a graphic on a graphics overlay.

Image of adding graphics with symbols

Use case

Allows you to customize a graphic by assigning a unique symbol. For example, you may wish to display individual graphics for different landmarks across a region, and to style each one with a unique symbol.

How to use the sample

Pan and zoom around the map. Observe the graphics on the map.

How it works

  1. Create a GraphicsOverlay and add it to the MapView.
  2. Create a Symbol such as SimpleMarkerSymbol, SimpleLineSymbol, SimpleFillSymbol or TextSymbol.
  3. Create a Graphic, specifying a Geometry and a symbol.
  4. Add the graphic to the graphics overlay.

Relevant API

  • Geometry
  • Graphic
  • GraphicsOverlay
  • SimpleFillSymbol
  • SimpleLineSymbol
  • SimpleMarkerSymbol
  • TextSymbol

Additional information

To set a symbol style across a number of graphics (e.g. showing trees as graphics sharing a symbol in a park), see the "Add graphics with renderer" sample.

Tags

display, fill, graphics, line, marker, overlay, point, symbol

Sample Code

AddGraphicsWithSymbolsSample.java
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 /*  * 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.add_graphics_with_symbols;  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.PointCollection; import com.esri.arcgisruntime.geometry.Polygon; import com.esri.arcgisruntime.geometry.Polyline; import com.esri.arcgisruntime.geometry.SpatialReference; 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.SimpleFillSymbol; import com.esri.arcgisruntime.symbology.SimpleLineSymbol; import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol; import com.esri.arcgisruntime.symbology.TextSymbol; import com.esri.arcgisruntime.symbology.TextSymbol.HorizontalAlignment; import com.esri.arcgisruntime.symbology.TextSymbol.VerticalAlignment;  public class AddGraphicsWithSymbolsSample extends Application {   private MapView mapView;  private GraphicsOverlay graphicsOverlay;   private static final SpatialReference SPATIAL_REFERENCE = SpatialReferences.getWgs84();   @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("Add Graphics with Symbols 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 oceans basemap style  final ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_OCEANS);   // create a map view and set the map to it  mapView = new MapView();  mapView.setMap(map);   // set a viewpoint on the map view  mapView.setViewpoint(new Viewpoint(56.075844, -2.681572, 72223));   // create the graphics overlay  graphicsOverlay = new GraphicsOverlay();   // add the graphic overlay to the map view  mapView.getGraphicsOverlays().add(graphicsOverlay);   // add some red circled points to the graphics overlay  createPoints();   // add the purple polyline to the graphics overlay  createPolyline();   // add the green polygon mesh to the graphics overlay  createPolygon();   // add the blue text symbols to the graphics overlay  createText();   // add the map view to stack pane  stackPane.getChildren().add(mapView);  } catch (Exception e) {  e.printStackTrace();  }  }   /**  * Creates four Points using a SimpleMarkerSymbol and adds them to a  * GraphicsOverlay.  */  private void createPoints() {   // create a red circle simple marker symbol  SimpleMarkerSymbol redCircleSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CIRCLE, Color.RED, 10);   // create graphics and add to graphics overlay  Graphic graphic;  graphic = new Graphic(new Point(-2.72, 56.065, SPATIAL_REFERENCE), redCircleSymbol);  graphicsOverlay.getGraphics().add(graphic);   graphic = new Graphic(new Point(-2.69, 56.065, SPATIAL_REFERENCE), redCircleSymbol);  graphicsOverlay.getGraphics().add(graphic);   graphic = new Graphic(new Point(-2.66, 56.065, SPATIAL_REFERENCE), redCircleSymbol);  graphicsOverlay.getGraphics().add(graphic);   graphic = new Graphic(new Point(-2.63, 56.065, SPATIAL_REFERENCE), redCircleSymbol);  graphicsOverlay.getGraphics().add(graphic);  }   /**  * Creates a Polyline and adds it to a GraphicsOverlay.  */  private void createPolyline() {   // create a dark blue simple line symbol  SimpleLineSymbol lineSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.DASH, Color.DARKBLUE, 4);   // create a new point collection for polyline  PointCollection points = new PointCollection(SPATIAL_REFERENCE);   // create and add points to the point collection  points.add(new Point(-2.715, 56.061));  points.add(new Point(-2.6438, 56.079));  points.add(new Point(-2.638, 56.079));  points.add(new Point(-2.636, 56.078));  points.add(new Point(-2.636, 56.077));  points.add(new Point(-2.637, 56.076));  points.add(new Point(-2.715, 56.061));   // create the polyline from the point collection  Polyline polyline = new Polyline(points);   // create the graphic with polyline and symbol  Graphic graphic = new Graphic(polyline, lineSymbol);   // add graphic to the graphics overlay  graphicsOverlay.getGraphics().add(graphic);  }   /**  * Creates a Polygon and adds it to a GraphicsOverlay.  */  private void createPolygon() {   // create a green simple line symbol  SimpleLineSymbol outlineSymbol = new SimpleLineSymbol(SimpleLineSymbol.Style.DASH, Color.DARKGREEN, 1);  // create a green mesh simple fill symbol  SimpleFillSymbol fillSymbol = new SimpleFillSymbol(SimpleFillSymbol.Style.DIAGONAL_CROSS, Color.DARKGREEN,  outlineSymbol);   // create a new point collection for polygon  PointCollection points = new PointCollection(SPATIAL_REFERENCE);   // create and add points to the point collection  points.add(new Point(-2.6425, 56.0784));  points.add(new Point(-2.6430, 56.0763));  points.add(new Point(-2.6410, 56.0759));  points.add(new Point(-2.6380, 56.0765));  points.add(new Point(-2.6380, 56.0784));  points.add(new Point(-2.6410, 56.0786));   // create the polyline from the point collection  Polygon polygon = new Polygon(points);   // create the graphic with polyline and symbol  Graphic graphic = new Graphic(polygon, fillSymbol);   // add graphic to the graphics overlay  graphicsOverlay.getGraphics().add(graphic);  }   /**  * Creates two TextSymbols and adds them to a GraphicsOverlay.  */  private void createText() {   // create two text symbols  TextSymbol bassRockTextSymbol = new TextSymbol(10, "Bass Rock", Color.BLUE, HorizontalAlignment.LEFT,  VerticalAlignment.BOTTOM);   TextSymbol craigleithTextSymbol = new TextSymbol(10, "Craigleith", Color.BLUE, HorizontalAlignment.RIGHT,  VerticalAlignment.TOP);   // create two points  Point bassPoint = new Point(-2.64, 56.079, SPATIAL_REFERENCE);  Point craigleithPoint = new Point(-2.72, 56.076, SPATIAL_REFERENCE);   // create two graphics from the points and symbols  Graphic bassRockGraphic = new Graphic(bassPoint, bassRockTextSymbol);  Graphic craigleithGraphic = new Graphic(craigleithPoint, craigleithTextSymbol);   // add graphics to the graphics overlay  graphicsOverlay.getGraphics().add(bassRockGraphic);  graphicsOverlay.getGraphics().add(craigleithGraphic);  }   /**  * 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);  }  }

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