PolygonBuilder Constructor(IEnumerable<MapPoint>)

Initializes a new instance of the PolygonBuilder class. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public PolygonBuilder( 
   IEnumerable<MapPoint> points
)

Public Function New( _
   ByVal points As IEnumerable(Of MapPoint) _
)

Parameters

points: Points for the first ring.

Exceptions

Exception	Description
System.InvalidOperationException	Incompatible spatial references.
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.
System.ArgumentNullException	points is null.

Example

// Use a builder convenience method or use a builder constructor.

MapPoint pt1 = MapPointBuilder.CreateMapPoint(1.0, 1.0);
MapPoint pt2 = MapPointBuilder.CreateMapPoint(1.0, 2.0);
MapPoint pt3 = MapPointBuilder.CreateMapPoint(2.0, 2.0);
MapPoint pt4 = MapPointBuilder.CreateMapPoint(2.0, 1.0);

List<MapPoint> list = new List<MapPoint>() { pt1, pt2, pt3, pt4 };

// Builder convenience methods don't need to run on the MCT.
Polygon polygon = PolygonBuilder.CreatePolygon(list, SpatialReferences.WGS84);

// Builder constructors need to run on the MCT.
ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
  using (PolygonBuilder polygonBuilder = new PolygonBuilder(list))
  {
    polygonBuilder.SpatialReference = SpatialReferences.WGS84;
    polygon = polygonBuilder.ToGeometry();
  }
});

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

Reference

PolygonBuilder Class
PolygonBuilder Members
Overload List