ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping Namespace / ProportionalRendererDefinition Class / ProportionalRendererDefinition Constructor / ProportionalRendererDefinition Constructor(String,esriUnits,CIMSymbolReference,SymbolShapes,ValueRepresentations)
Name of the field used in the renderer.
The units used in the renderer.
The fill to be used in symbol type set by using proportionalSymbolType.
(Optional) The symbol type for a proportional renderer. Only symbol type of circle or square is allowed. (default value = Circle)
(Optional) The value representation used in a proportional renderer. (default value = Radius)
Example Version

ProportionalRendererDefinition Constructor(String,esriUnits,CIMSymbolReference,SymbolShapes,ValueRepresentations)
Creates a ProportionalRendererDefinition.
Syntax

Parameters

field
Name of the field used in the renderer.
units
The units used in the renderer.
symbolFill
The fill to be used in symbol type set by using proportionalSymbolType.
proportionalSymbolType
(Optional) The symbol type for a proportional renderer. Only symbol type of circle or square is allowed. (default value = Circle)
valueRepresentations
(Optional) The value representation used in a proportional renderer. (default value = Radius)
Remarks

Use this constructor only when the map is in a Projected Coordinate System.

When the map is in a projected coordinated system and Units is set, use this constructor to symbolize features where the value of the feature gets used as the radius or the area of the symbol (depending on valueRepresentations).

Example
Create a True Proportion 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(() =>
{
  CIMPointSymbol pointSym = SymbolFactory.Instance.ConstructPointSymbol(ColorFactory.Instance.GreenRGB, 1.0, SimpleMarkerStyle.Circle);
  CIMSymbolReference symbolPointTemplate = pointSym.MakeSymbolReference();

  //Defining proportional renderer where size of symbol will be same as its value in field used in the renderer.
  ProportionalRendererDefinition prDef = new ProportionalRendererDefinition("POPULATION", esriUnits.esriMeters, symbolPointTemplate, SymbolShapes.Square, ValueRepresentations.Radius);

  FeatureLayer flyr = MapView.Active.Map.Layers[0] as FeatureLayer;
  CIMProportionalRenderer propRndr = flyr.CreateRenderer(prDef) as CIMProportionalRenderer;
  flyr.SetRenderer(propRndr);

});
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also