CreateLegendPatchGraphic(PatchShape,Envelope) Method

In This Topic

Create a polygon or line graphic of the specified ArcGIS.Core.CIM.PatchShape using the provided extent. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public CIMGraphic CreateLegendPatchGraphic( 
   PatchShape patchShape,
   Envelope extent
)

Public Overloads Function CreateLegendPatchGraphic( _
   ByVal patchShape As PatchShape, _
   ByVal extent As Envelope _
) As CIMGraphic

Parameters

patchShape: The legend patch shape
extent: The extent of the graphic element

Return Value

A ArcGIS.Core.CIM.CIMGraphic

Exceptions

Exception	Description
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.
System.ArgumentException	empty or null geometry

Example

Create Legend Patch Graphic

//Must be on QueuedTask.Run(() => { ...

//Build geometry
List<Coordinate2D> plyCoords = new List<Coordinate2D>();
plyCoords.Add(new Coordinate2D(1, 1));
plyCoords.Add(new Coordinate2D(1.25, 2));
plyCoords.Add(new Coordinate2D(1.5, 1.1));
plyCoords.Add(new Coordinate2D(1.75, 2));
plyCoords.Add(new Coordinate2D(2, 1.1));
plyCoords.Add(new Coordinate2D(2.25, 2));
plyCoords.Add(new Coordinate2D(2.5, 1.1));
plyCoords.Add(new Coordinate2D(2.75, 2));
plyCoords.Add(new Coordinate2D(3, 1));
Polygon poly = PolygonBuilderEx.CreatePolygon(plyCoords);

//Set symbology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
          ColorFactory.Instance.BlackRGB, 2.0, SimpleLineStyle.Solid);
CIMPolygonSymbol polySym = SymbolFactory.Instance.ConstructPolygonSymbol(
          ColorFactory.Instance.RedRGB, SimpleFillStyle.ForwardDiagonal, outline);

var graphic = GraphicFactory.Instance.CreateLegendPatchGraphic(
            PatchShape.AreaBoundary, poly.Extent, polySym);

//Make an element to add to GraphicsLayer or Layout
//
//var elemInfo = new ElementInfo()
//{
//  CustomProperties = null,
//  Anchor = Anchor.LeftMidPoint
//};
//var ge = ElementFactory.Instance.CreateGraphicElement(container, graphic,
//  "New Legend Patch", true, elemInfo);

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

GraphicFactory Class
GraphicFactory Members
Overload List

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