GetMinMaxM Method (IGeometryEngine)

In This Topic

Gets the minimum and maximum M-value.

Syntax

Visual Basic (Declaration)
C#

Sub GetMinMaxM( _
   ByVal multipart As Multipart, _
   ByRef minM As Double, _
   ByRef maxM As Double _
)

void GetMinMaxM( 
   Multipart multipart,
   out double minM,
   out double maxM
)

Parameters

multipart: The multipart from which the M-values are extracted.
minM: The minimum M-value.
maxM: The maximum M-value.

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

Get the minimum and maximum M values - GetMinMaxM

{
  string json = "{\"hasM\":true,\"rings\":[[[-3000,-2000,10],[-2000,-2000,15],[-1000,-2000,20],[0,-2000,0],[1000,-2000,-20],[2000,-2000,-30],[3000,-2000,10],[4000,-2000,5]]],\"spatialReference\":{\"wkid\":3857}}";
  polygon = PolygonBuilderEx.FromJson(json);

  GeometryEngine.Instance.GetMinMaxM(polygon, out double minM, out double maxM);
  // minM = -30 
  // maxM = 20

  json = "{\"hasM\":true,\"paths\":[[[-3000,-2000,10],[-2000,-2000,null],[-1000,-2000,null]]]}";
  polyline = PolylineBuilderEx.FromJson(json);

  GeometryEngine.Instance.GetMinMaxM(polyline, out minM, out maxM);
  // minM = 10
  // maxM = 10

  json = "{\"hasM\":true,\"paths\":[[[-3000,-2000,null],[-2000,-2000,null],[-1000,-2000,null]]]}";
  polyline = PolylineBuilderEx.FromJson(json);

  GeometryEngine.Instance.GetMinMaxM(polyline, out minM, out maxM);
  // minM = double.Nan
  // maxM = double.Nan
}

Requirements

Target Platforms: Windows 11 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.0 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

Send feedback