InterpolateZ Method (TinLayer)

In This Topic

Interpolates the z coordinate of the specified xy location from the surface layer. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

C#
Visual Basic (Declaration)

public double InterpolateZ( 
   double x,
   double y,
   SurfaceInterpolationMethod interpolationMethod
)

Public Function InterpolateZ( _
   ByVal x As Double, _
   ByVal y As Double, _
   ByVal interpolationMethod As SurfaceInterpolationMethod _
) As Double

Parameters

x: The x coordinate.
y: The y coordinate.
interpolationMethod: The method of interpolation. The default method of interpolation for TINs is SurfaceInterpolationMethod.Linear./

Return Value

The surface elevation Z value.

Exceptions

Exception	Description
System.ArgumentException	The set of parameters is invalid for this surface. See CanInterpolateShape.
MappingException	An exception occurred within the InterpolateShape calculation.
ArcGIS.Core.CalledOnWrongThreadException	This method or property must be called within the lambda passed to QueuedTask.Run.

Example

Interpolate Z at an x,y location

var tinLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<TinLayer>().FirstOrDefault();
await QueuedTask.Run(() =>
{
  // interpolate values at the specified x,y location
  double z = tinLayer.InterpolateZ(x, y, SurfaceInterpolationMethod.NaturalNeighborZNearest);

  // or use a different interpolation method
  z = tinLayer.InterpolateZ(x, y, SurfaceInterpolationMethod.Linear);
});

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.4 or higher.

Reference

TinLayer Class
TinLayer Members

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