SetMsAsDistance Method (IGeometryEngine)

In This Topic

Sets the M values to the cumulative length from the start of the multipart.

Syntax

C#
Visual Basic (Declaration)

Multipart SetMsAsDistance( 
   Multipart multipart,
   AsRatioOrLength asRatioOrLength
)

Function SetMsAsDistance( _
   ByVal multipart As Multipart, _
   ByVal asRatioOrLength As AsRatioOrLength _
) As Multipart

Parameters

multipart: The multipart in which to set the M values.
asRatioOrLength: Indicates whether the M-values are set as lengths or ratios along the multipart.

Return Value

Multipart with M-values set. If the input multipart is empty, then it is returned unchanged.

Exceptions

Exception	Description
System.ArgumentNullException	Multipart is null.
System.InvalidOperationException	This geometry is not M-Aware.
System.NotImplementedException	Spatial reference of multipartis an image coordinate system.

Example

Set M values to the cumulative length from the start of the multipart - SetMsAsDistance

string json = "{\"hasM\":true,\"rings\":[[[0,0],[0,3000],[4000,3000],[4000,0],[0,0]]],\"spatialReference\":{\"wkid\":3857}}";
Polygon polygon = PolygonBuilderEx.FromJson(json);

Polygon outPolygon = GeometryEngine.Instance.SetMsAsDistance(polygon, AsRatioOrLength.AsLength) as Polygon;
ReadOnlyPointCollection outPoints = outPolygon.Points;
// outPoints M values are { 0, 3000, 7000, 10000, 14000 };

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

Send feedback