vtkDelaunay2D: No cell data output

[Will Schroeder]

Hi Patric-

>It seems that in vtk 2.4 vtkDelaunay2D does not pass the cell data of
>the the input polygons. Is this a correct behavior of the filter? If so,
>why does'nt it work like vtkTriangleFilter, which has no problems with
>incoming cell attributes?

vtkDelaunay2D takes the input points and generates new triangles, there is no cell data to pass (the input cells, if any, are completely ignored). vtkTriangleFilter takes a polygon/triangle strip and tessellates that into triangles, so cell data can be transformed.

If you are using the more advanced feature that uses the second input to define "constraint edges" or "constraint polygons", there is not enough information to guarantee the passing of cell data.

Will

--------------------------------
Dr. William J. Schroeder
Kitware Visualization Solutions / vtk Commercial Support
469 Clifton Corporate Parkway
Clifton Park, NY 12065
will.schroeder at kitware.com
1-518-371-3971 (Phone & Fax)


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