[vtkusers] Overlapping triangles

marf marvin.huber at basf.com
Mon Aug 6 10:59:38 EDT 2018

Hi together, some days back I was working on a custom loader and wanted to
get rid of inner faces in a 3D model. To do so, I simply picked all
duplicate faces and threw them away, but the result was not what I wanted.
By now I fugured out why:

I assumed, that equal faces have the same corners, but there is also the
case, where triangles can overlap to take in the same space, but not be


If these two squares overlap, but I only know the triangles (and they only
party overlap), what would be an efficient way, to find them as being
Or am I orienting them wrong  and this causes the problem?

Greetings, marf

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