SetCoords Method—ArcGIS Pro

Sets this line's endpoints to be and . This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public void SetCoords( 
   MapPoint startPt,
   MapPoint endPt
)

Public Sub SetCoords( _
   ByVal startPt As MapPoint, _
   ByVal endPt As MapPoint _
)

Parameters

startPt: The start point.
endPt: The end point.

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	startPt or endPt is null.

Remarks

The SetCoords method sets the Start Point and End Point for a line object. If the Start Point and End Point are identical, it creates a zero Length line with the same Start and End point.

Line Segment

Example

// Builder constructors need to run on the MCT.
ArcGIS.Desktop.Framework.Threading.Tasks.QueuedTask.Run(() =>
{
  // use the builder constructor
  using (LineBuilder lb = new LineBuilder(lineSegment))
  {
    // find the existing coordinates
    lb.QueryCoords(out startPt, out endPt);

    // or use 
    //startPt = lb.StartPoint;
    //endPt = lb.EndPoint;

    // update the coordinates
    lb.SetCoords(GeometryEngine.Instance.Move(startPt, 10, 10) as MapPoint, GeometryEngine.Instance.Move(endPt, -10, -10) as MapPoint);

    // or use 
    //lb.StartPoint = GeometryEngine.Instance.Move(startPt, 10, 10) as MapPoint;
    //lb.EndPoint = GeometryEngine.Instance.Move(endPt, -10, -10) as MapPoint;

    LineSegment anotherLineSegment = lb.ToSegment();
  }
});

// builderEx constructors don't need to run on the MCT
LineBuilderEx lbuilderEx = new LineBuilderEx(lineSegment);
// find the existing coordinates
lbuilderEx.QueryCoords(out startPt, out endPt);

// or use 
//startPt = lb.StartPoint;
//endPt = lb.EndPoint;

// update the coordinates
lbuilderEx.SetCoords(GeometryEngine.Instance.Move(startPt, 10, 10) as MapPoint, GeometryEngine.Instance.Move(endPt, -10, -10) as MapPoint);

// or use 
//lb.StartPoint = GeometryEngine.Instance.Move(startPt, 10, 10) as MapPoint;
//lb.EndPoint = GeometryEngine.Instance.Move(endPt, -10, -10) as MapPoint;

LineSegment segment2 = lbuilderEx.ToSegment() as LineSegment;

Requirements

Target Platforms: Windows 10, Windows 8.1

Reference

LineBuilder Class
LineBuilder Members