[vtkusers] bilinear, trilinear interpolation..

[Will Schroeder]

The cells vtkPixel and vtkVoxel do interpolation. There are more general 
forms of these cells that do something similar, although less efficiently: 
vtkQuad and vtkHexahedron. Using EvaluatePosition() and EvaluateLocation 
you can go back and forth between parametric and world space. Also, there 
is a static function InterpolationFunctions that can be used (given a 
parametric coordinate pcoord[3], return the interpolation weights).

Will




William J. Schroeder, Ph.D.
Kitware, Inc.
VTK-Based Visualization Solutions
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will.schroeder at kitware.com
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