InterpolateZ Method (TinLayer)

In This Topic

Interpolates the z coordinate of the specified (x,y) location from the surface layer. This method requires a 3D Analyst license. This method must be called on the MCT. Use QueuedTask.Run.

Syntax

Visual Basic (Declaration)
C#

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

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

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.
System.ArgumentException	x or y cannot be NaN.
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.
ArcGIS.Core.Licensing.Exceptions.LicenseException	A 3D Analyst license is required.

Example

Interpolate Z at an x,y location

{
  // Note: Needs QueuedTask to run
  // Note: Needs 3d Analyst license to 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 Home, Pro, Enterprise (64 bit)

ArcGIS Pro version: 3.4 or higher.

Reference

TinLayer Class
TinLayer Members

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