ProportionalRendererDefinition Constructor(String,Double,Nullable<Double>,Boolean)

In This Topic

Creates a ProportionalRendererDefinition.

Syntax

Visual Basic (Declaration)
C#

Public Function New( _
   ByVal field As String, _
   Optional ByVal minimumSymbolSize As Double, _
   Optional ByVal maximumSymbolSize As Nullable(Of Double), _
   Optional ByVal isMaximumSymbolSizeCapped As Boolean _
)

public ProportionalRendererDefinition( 
   string field,
   double minimumSymbolSize,
   Nullable<double> maximumSymbolSize,
   bool isMaximumSymbolSizeCapped
)

Parameters

field: Name of the field used in the renderer.
minimumSymbolSize: (Optional) The minimum symbol size used in the renderer to draw features with lowest value. (default value = 4)
maximumSymbolSize: (Optional) The maximum symbol size used in the renderer to draw features with highest values. When a null value is passed in, a maximum symbol size gets automatically picked based on the layer's shape type. (default value = null)
isMaximumSymbolSizeCapped: (Optional) When false, maximumSymbolSize gets ignored and the size of the symbol is drawn proportional to the value. Otherwise, the largest symbol size is equal to maximumSymbolSize. (default value = true)

Example

Create a Proportion Renderer with max and min symbol size capped

{
    string colorBrewerSchemesName = "ArcGIS Colors";
    //Get the style project item that contains the color ramps
    //Refer to the Initialize region for an example of how to get a style item
    //Note: Run within a QueuedTask
    //Creating a point symbol to be used as a template symbol for the proportional renderer
    CIMPointSymbol pointSym = SymbolFactory.Instance.ConstructPointSymbol(ColorFactory.Instance.GreenRGB, 1.0, SimpleMarkerStyle.Circle);
    CIMSymbolReference symbolPointTemplate = pointSym.MakeSymbolReference();

    //minimum symbol size is capped to 4 point while the maximum symbol size is set to 50 point
    //Creating a proportional renderer definition that uses the "Population" field
    ProportionalRendererDefinition prDef = new ProportionalRendererDefinition("POPULATION", symbolPointTemplate, 4, 50, true)
    {
        //setting upper and lower size stops to stop symbols growing or shrinking beyond those thresholds
        UpperSizeStop = 5000000,  //features with values >= 5,000,000 will be drawn with maximum symbol size
        LowerSizeStop = 50000    //features with values <= 50,000 will be drawn with minimum symbol size
    };
    // Create a proportional renderer using the definition
    CIMProportionalRenderer propRndr = featureLayer.CreateRenderer(prDef) as CIMProportionalRenderer;
    // Set the renderer to the feature layer
    featureLayer.SetRenderer(propRndr);
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.0 or higher.

Reference

ProportionalRendererDefinition Class
ProportionalRendererDefinition Members
Overload List

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