[vtkusers] extract/select coincident points/cells

[Roman Grothausmann]

Dear mailing list members,


There are many filters in VTK to clean/merge coincident points but I 
could not find a single filter that extracts/selects coincident 
points/cells.
I would need it to extract the sub-mesh of two or more 
vtkPolyData-meshes where these meshes overlap, e.g. when a 
vtkDiscreteMarchingCubes surface is generated of two or more labels that 
directly touch each other in voxel space.
Or is there a way to just generate a mesh of the area where both labels 
touch?

Any help or hints are very much appreciated
Roman

-- 
Roman Grothausmann

Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
Bereich Funktionale Materialien
Institut für angewandte Materialforschung
Hahn-Meitner-Platz 1
D-14109 Berlin	

(früher Hahn-Meitner-Institut und BESSY)


Tel.: +49-(0)30-8062-42816
Fax.: +49-(0)30-8062-43059

Vorsitzender des Aufsichtsrats: Prof. Dr. Dr. h.c. mult. Joachim Treusch
Stellvertretende Vorsitzende: Dr. Beatrix Vierkorn-Rudolph
Geschäftsführer: Prof. Dr. Anke Rita Kaysser-Pyzalla, Dr. Ulrich Breuer
Sitz der Gesellschaft: Berlin
Handelsregister: AG Charlottenburg, 89 HRB 5583