GetMMonotonicity Method (IGeometryEngine)

In This Topic

Gets a combination of Monotonicity values that describes all trends in the M-values over the length of the multipart.

Syntax

Visual Basic (Declaration)
C#

Function GetMMonotonicity( _
   ByVal multipart As Multipart _
) As Monotonicity

Monotonicity GetMMonotonicity( 
   Multipart multipart
)

Parameters

multipart: The multipart to check for monotonicity.

Return Value

A combination of Monotonicity values.

Exceptions

Exception	Description
System.ArgumentNullException	Multipart is null.
System.InvalidOperationException	The multipart is not M-Aware.

Remarks

The Ms are increasing if the Ms are ordered such that M1 < M2 < M3 < . . . < Mn. The Ms are descreasing if the Ms are ordered such that M1 > M2 > M3 > . . . > Mn

Example

Get a combination of monotonicity values that describes all trends in the M-values over the length of the multipart - GetMMonotonicity

{
  string json = "{\"hasM\":true,\"paths\":[[[-3000,-2000,10],[-2000,-2000,5],[-1000,-2000,0]]]}";
  polyline = PolylineBuilderEx.FromJson(json);
  Monotonicity monotonicity = GeometryEngine.Instance.GetMMonotonicity(polyline);
  // monotonicity = Monotonicity.ValueDecreases

  // Create a polygon from the polyline
  polygon = PolygonBuilderEx.CreatePolygon(polyline);
  monotonicity = GeometryEngine.Instance.GetMMonotonicity(polygon);
  // monotonicity = ValueIncreases | ValueDecreases

  json = "{\"hasM\":true,\"paths\":[[[-3000,-2000,10],[-2000,-2000,10],[-1000,-2000,10]]]}";
  polyline = PolylineBuilderEx.FromJson(json);
  monotonicity = GeometryEngine.Instance.GetMMonotonicity(polygon);
  // monotonicity = Monotonicity.ValueLevel

  json = "{\"hasM\":true,\"paths\":[[[-3000,-2000,null],[-2000,-2000,5],[-1000,-2000,10]]]}";
  polyline = PolylineBuilderEx.FromJson(json);
  monotonicity = GeometryEngine.Instance.GetMMonotonicity(polyline);
  // monotonicity = ValueIncreases | ValueEmpty

  // Create an empty polyline
  Polyline emptyPolyline = PolylineBuilderEx.FromJson("{\"hasM\":true,\"paths\":[]}");
  monotonicity = GeometryEngine.Instance.GetMMonotonicity(emptyPolyline);
  // monotonicity = Monotonicity.None
}

Requirements

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

ArcGIS Pro version: 3.3 or higher.

Reference

IGeometryEngine Interface
IGeometryEngine Members

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