LabelPoint Method (IGeometryEngine)

In This Topic

Performs the LabelPoint operation on the geometry.

Syntax

C#
Visual Basic (Declaration)

MapPoint LabelPoint( 
   Geometry geometry
)

Function LabelPoint( _
   ByVal geometry As Geometry _
) As MapPoint

Parameters

geometry: The polygon or envelope to label.

Return Value

Returns the label point for the geometry.

Exceptions

Exception	Description
System.ArgumentNullException	Geometry is null.
System.NotImplementedException	The method is not implemented for GeometryBag.
System.ArgumentException	Geometry is not a polygon or an envelope.
ArcGIS.Core.Geometry.Exceptions.GeometryObjectException	Geometry is empty.

Example

Determine label point for a Polygon

// create a polygon
List<Coordinate2D> list2D = new List<Coordinate2D>();
list2D.Add(new Coordinate2D(1.0, 1.0));
list2D.Add(new Coordinate2D(1.0, 2.0));
list2D.Add(new Coordinate2D(2.0, 2.0));
list2D.Add(new Coordinate2D(2.0, 1.0));

Polygon polygon = PolygonBuilderEx.CreatePolygon(list2D);
bool isSimple = GeometryEngine.Instance.IsSimpleAsFeature(polygon);
MapPoint pt = GeometryEngine.Instance.LabelPoint(polygon);

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

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