ArcGIS Developer Help

IInterpolationOp.Spline Method

Interpolates using splining.

[Visual Basic .NET]
Public Function Spline ( _
    ByVal geoData As IGeoDataset, _
    ByVal splineType As esriGeoAnalysisSplineEnum, _
    [ByRef weight As Object], _
    [ByRef numPoints As Object] _
) As IGeoDataset

[C#]
public IGeoDataset Spline (
    IGeoDataset geoData,
    esriGeoAnalysisSplineEnum splineType,
    ref object weight,
    ref object numPoints
);

[C++]
HRESULT Spline(
  IGeoDataset* geoData,
  esriGeoAnalysisSplineEnum splineType,
  Variant* weight,
  Variant* numPoints
);

[C++]
Parameters
geoData [in]

  geoData is a parameter of type IGeoDataset*
splineType [in]

  splineType is a parameter of type esriGeoAnalysisSplineEnum
weight [in, optional]

  weight is a parameter of type VARIANT*
numPoints [in, optional]

  numPoints is a parameter of type VARIANT*

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Remarks

geoData	an input FeatureClass or FeatureClassDescriptor containing the points with z values to be interpolated onto a surface Raster
splineType	an esriGeoAnalysisSpliceEnum defining the method of Spline to be performed There are two options. esriGeoAnalysisRegularizedSpline yields a smooth surface and smooth first derivatives esriGeoAnalysisTensionSpline tunes the stiffness of the interpolant according to the character of the modeled phenomenon.
[weight]	parameter influencing the character of the surface interpolation When the Regularized option is chosen, it defines the weight of the third derivatives of the surface in the curvature minimization expression. If the Tension method is run, it defines the weight of tension. When no weight is specified the default is 0.1.
[numPoints]	number of points per region used for local approximation When no numPoints is given the Spline method will use 12.

IInterpolationOp.Spline Method

Product Availability

Remarks

See Also