Represents a heat map renderer.
The Heat Map Renderer draws point features as a continuous /// color gradient representing the density of the points. The resulting /// density surface represents the physical proximity between points, /// optionally weighted by a specified attribute value. The displayed /// raster surface is dynamic and morphs according to the zoom level /// and updates if the source point features are edited.
Create a Heatmap Renderer
string colorBrewerSchemesName = "ArcGIS Colors";
StyleProjectItem style = Project.Current.GetItems<StyleProjectItem>().First(s => s.Name == colorBrewerSchemesName);
string colorRampName = "Heat Map 4 - Semitransparent";
IList<ColorRampStyleItem> colorRampList = await QueuedTask.Run(() =>
{
return style.SearchColorRamps(colorRampName);
});
ColorRampStyleItem colorRamp = colorRampList[0];
await QueuedTask.Run(() =>
{
//defining a heatmap renderer that uses values from Population field as the weights
HeatMapRendererDefinition heatMapDef = new HeatMapRendererDefinition()
{
Radius = 20,
WeightField = "Population",
ColorRamp = colorRamp.ColorRamp,
RendereringQuality = 8,
UpperLabel = "High Density",
LowerLabel = "Low Density"
};
FeatureLayer flyr = MapView.Active.Map.Layers[0] as FeatureLayer;
CIMHeatMapRenderer heatMapRndr = flyr.CreateRenderer(heatMapDef) as CIMHeatMapRenderer;
flyr.SetRenderer(heatMapRndr);
});
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3 or higher.