[vtkusers] texture mapping

[fabio depascalis]

Hi

I have a polydata object describing my model and a tiff-file to
describe the texture for it;
I want the texture cover only a part of my polydata, and i know that
all the points of the dataset must have TCoords;
so how set the tcoords for the polydata points on which i don't want
map the image?


Thanks