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.
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
- Create a
GraphicsOverlay
and add it to theMapView
. - Create a
Graphic
, specifying only aGeometry
. - Create a single
Symbol
such as aSimpleMarkerSymbol
. - Create a renderer with the
Symbol
such as newSimpleRenderer(symbol)
. - Set the renderer on the
GraphicsOverlay
withgraphicsOverlay.Renderer(renderer)
.
Relevant API
- CubicBezierSegment
- EllipticArcSegment
- GeodesicEllipseParameters
- Geometry
- 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
<UserControl x:Class="ArcGISRuntime.WinUI.Samples.AddGraphicsRenderer.AddGraphicsRenderer"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
<Grid>
<esriUI:MapView x:Name="MyMapView" />
</Grid>
</UserControl>