SetAndInterpolateMsBetween Method (IGeometryEngine)

In This Topic

Sets the Ms at the beginning and the end of the geometry and interpolates the M-values between these values.

Syntax

C#
Visual Basic (Declaration)

Multipart SetAndInterpolateMsBetween( 
   Multipart multipart,
   double fromM,
   double toM
)

Function SetAndInterpolateMsBetween( _
   ByVal multipart As Multipart, _
   ByVal fromM As Double, _
   ByVal toM As Double _
) As Multipart

Parameters

multipart: The multipart on which to set the M-values.
fromM: The beginning M-value.
toM: The end M-value.

Return Value

The multipart with new M-values. 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.
ArcGIS.Core.Geometry.Exceptions.InvalidParameterException	The input fromM and toM are invalid and M-values cannot be interpolated.
System.NotImplementedException	Spatial reference of multipartis an image coordinate system.

Example

Set Ms at the beginning and end of the geometry and interpolate M-values between the two values - SetAndInterpolateMsBetween

string json = "{\"hasM\":true,\"paths\":[[[-3000,-2000],[-2000,-2000],[-1000,-2000],[0,-2000],[1000,-2000],[2000,-2000],[3000,-2000],[4000,-2000]]],\"spatialReference\":{\"wkid\":3857}}";
Polyline polyline = PolylineBuilderEx.FromJson(json);

Polyline outPolyline = GeometryEngine.Instance.SetAndInterpolateMsBetween(polyline, 100, 800) as Polyline;
ReadOnlyPointCollection outPoints = outPolyline.Points;
// outPoints M values are { 100, 200, 300, 400, 500, 600, 700, 800 };

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

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