CreateArrowGraphicElement Method (ElementFactory)

In This Topic

Create an arrow graphic based on the provided geometry and ArrowInfo. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public GraphicElement CreateArrowGraphicElement( 
   IElementContainer elementContainer,
   Polyline arrowLine,
   ArrowInfo arrowInfo,
   string elementName,
   bool select,
   ElementInfo elementInfo
)

Public Function CreateArrowGraphicElement( _
   ByVal elementContainer As IElementContainer, _
   ByVal arrowLine As Polyline, _
   ByVal arrowInfo As ArrowInfo, _
   Optional ByVal elementName As String, _
   Optional ByVal select As Boolean, _
   Optional ByVal elementInfo As ElementInfo _
) As GraphicElement

Parameters

elementContainer: The parent element container
arrowLine: The arrow geometry
arrowInfo: The arrow info or "description"
elementName: An element name (optional)
select: Select after create flag (default is true) (optional)
elementInfo: Additional element properties (optional)

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 Line Arrow Element

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

//Build geometry
List<Coordinate2D> plCoords = new List<Coordinate2D>();
plCoords.Add(new Coordinate2D(1, 8.5));
plCoords.Add(new Coordinate2D(1.66, 9));
plCoords.Add(new Coordinate2D(2.33, 8.1));
plCoords.Add(new Coordinate2D(3, 8.5));
Polyline linePl = PolylineBuilderEx.CreatePolyline(plCoords);

var arrowInfo = new ArrowInfo()
{
  ArrowHeadKey = ArrowInfo.DefaultArrowHeadKeys[8],
  ArrowOnBothEnds = true,
  ArrowSizePoints = 24,
  LineWidthPoints = 12
};

//Create and add element to layout
GraphicElement lineElm = ElementFactory.Instance.CreateArrowGraphicElement(
  container, linePl, arrowInfo, "Arrow Line", true, 
                            new ElementInfo() { Rotation = 15.0 });
//lineElm.SetName("New Line");

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

ElementFactory Class
ElementFactory Members

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