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A renderer allows you to change the style of all graphics in a graphics overlay by referencing a single symbol style. A renderer will only affect graphics that do not specify their own symbol style.

Image of adding graphics with renderer

Use case

A renderer allows you to change the style of all graphics in an overlay by only changing one copy of the symbol. For example, a user may wish to display a number of graphics on a map of parkland which represent trees, all sharing a common symbol.

How to use the sample

Pan and zoom on the map to view graphics for points, lines, and polygons (including polygons with curve segments) which are stylized using renderers.

How it works

  1. Create a GraphicsOverlay and add it to the MapView.
  2. Create a Graphic, specifying only a Geometry.
  3. Create a single Symbol such as a SimpleMarkerSymbol.
  4. Create a renderer with the symbol, such as new SimpleRenderer(symbol).
  5. Set the renderer on the graphics overlay with graphicsOverlay.setRenderer(renderer).

Relevant API

  • CubicBezierSegment
  • EllipticArcSegment
  • GeodesicEllipseParameters
  • Geometry
  • GeometryEngine
  • Graphic
  • GraphicsOverlay
  • Part
  • PolygonBuilder
  • PolylineBuilder
  • SimpleFillSymbol
  • SimpleLineSymbol
  • SimpleMarkerSymbol
  • SimpleRenderer

Additional information

To set unique symbols across a number of graphics (e.g. showing graphics of individual landmarks) see “Add graphics with symbols” sample.

Tags

arc, bezier, curve, display, ellipse, graphics, marker, overlay, renderer, segment, symbol, true curve

Sample Code

module-info.java module-info.java AddGraphicsWithRendererSample.java
/*
* 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.add_graphics_with_renderer {
// 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.add_graphics_with_renderer;
}