[OpenSCAD] Fwd: check validity feature

Martin Kühne mysatyre at gmail.com
Mon Jun 13 13:50:30 EDT 2016


Hello list,

I'm not sure I understood openscad's "check validity" feature
correctly, so I thought I'd be asking about it here.
The output I'm getting for [0] is this:

ERROR:
CGAL error in CGAL_Nef_polyhedron3():
CGAL ERROR: assertion violation!
Expr: e->incident_sface() != SFace_const_handle()
File: /usr/include/CGAL/Nef_S2/SM_const_decorator.h
Line: 326
Valid: no

The main reason I'm asking is that the error message doesn't seem to
have anything to do with whatever form of geometric analysis of the
shape in question is done.

cheers!
mar77i

[0] https://gist.github.com/mar77i/c97245aa3ecc87a0000da569e02988cf




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