[vtkusers] Isosurface with range

[erik.mejdal at risoe.dk]

Dear VTK users

I have just started using vtk and is playing around with the opputinity of
visualizing grains structures by isosurfaces. All voxels belonging to the
same grain has the same scalar value (label). What I want to do is to assign
an isosurface to each grain and be able to switch the visibility of each
grain on/off.

I have two problems:
1) Is it possible to specify both an upper AND a lower value for an
isosurface. I have tried vtkImageGeometryFilter with a range but then I do
not get access to the handle of each individual isosurface.

2) Is there a way to include the boundaries (sides of my volume) when
producing the isosurfaces?

Kind regards
Erik Lauridsen

##################################################
Erik Mejdal Lauridsen
Center for Fundamental Research 
- Metal Structures in 4 Dimensions
Risø National Laboratory
P.O. Box 49
DK-4000 Roskilde
Phone: +45 4677 5760
Fax: +45 4677 5758
e-mail: erik.mejdal at risoe.dk
##################################################