CreatePolyline(IEnumerable<MapPoint>,SpatialReference) Method

Convenience method to create a new instance of the Polyline class.

Syntax

C#
Visual Basic (Declaration)

public static Polyline CreatePolyline( 
   IEnumerable<MapPoint> points,
   SpatialReference spatialReference
)

Public Overloads Shared Function CreatePolyline( _
   ByVal points As IEnumerable(Of MapPoint), _
   Optional ByVal spatialReference As SpatialReference _
) As Polyline

Parameters

points: Coordinates to create the polyline.
spatialReference: (Optional) The SpatialReference. The default value is null. If spatialReference is null, then the spatial reference will be inherited from points.

Return Value

A Polyline.

Exceptions

Exception	Description
System.InvalidOperationException	Incompatible spatial references.
System.ArgumentNullException	points is null.

Example

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

MapPoint startPt = MapPointBuilder.CreateMapPoint(1.0, 1.0);
MapPoint endPt = MapPointBuilder.CreateMapPoint(2.0, 1.0);

List<MapPoint> list = new List<MapPoint>();
list.Add(startPt);
list.Add(endPt);

// Builder convenience methods don't need to run on the MCT.
Polyline polyline = PolylineBuilder.CreatePolyline(list, SpatialReferences.WGS84);

// Builder constructors need to run on the MCT.
ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
  using (PolylineBuilder pb = new PolylineBuilder(list))
  {
    pb.SpatialReference = SpatialReferences.WGS84;
    Polyline polyline2 = pb.ToGeometry();
  }
});

Requirements

Target Platforms: Windows 10, Windows 8.1

Reference

PolylineBuilder Class
PolylineBuilder Members
Overload List