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 );
Optional Values
[C++]
HRESULT Spline(
IGeoDataset* geoData,
esriGeoAnalysisSplineEnum splineType,
VARIANT* weight,
VARIANT* numPoints,
IGeoDataset** interpolatedRaster
);
[C++]Parameters
geoData [in]geoData is a parameter of type IGeoDataset
splineType [in]splineType is a parameter of type esriGeoAnalysisSplineEnum
weight [optional] weight is a parameter of type VARIANTTo indicate this parameter is undefined pass a reference to a VARIANT with type VT_ERROR and scode value of DISP_E_PARAMNOTFOUND.
numPoints [optional] numPoints is a parameter of type VARIANTTo indicate this parameter is undefined pass a reference to a VARIANT with type VT_ERROR and scode value of DISP_E_PARAMNOTFOUND.
interpolatedRaster [out, retval]interpolatedRaster is a parameter of type IGeoDataset
Product Availability
Remarks
geoData |
an input point featureclass 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. |