[vtkusers] Filters

[ady roman]

Please,someone tell me how to use filters.

I tried DecimatePro filter, Triangle filter and
Contour filter and
I got the following error and I don't know how
to debug it:

"ERROR: In C:\Hoffman\vtk-com\Common\vtkSource.cxx,
line 414
vtkContourFilter (0x06601C18): At least 1 inputs are
required but only 0 are specified
"

Thanks,

A.Roman

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