[vtkusers] Contours elevation

[Martin Saturka]

Dear Sirs,
is there a transform filter to use for setting contour lines to their
respective heights?
I have found a similar question on surface reconstruction, but it
produces whole surfaces.
http://public.kitware.com/pipermail/vtkusers/2007-December/093766.html

May be, it is a wrong way to do it through 2d contours, starting with
a user function.

Thanks
Martin