CGAL users discussion list

[Bernhard Kornberger <>]

The Minkowski_sum_3 package throws an assertion for a particular
input:

terminate called after throwing an instance of 'CGAL::Assertion_exception'
  what():  CGAL ERROR: assertion violation!
File: /opt/CGAL351/include/CGAL/Convex_decomposition_3/Ray_hit_generator.h
Line: 152
Explanation: ray should hit vertex, edge, or facet
Aborted

I have made a minimal code example, where the error occurs:

http://geom.at/CGAL_mink3demo.zip

I can't guarantee that the input models are correct with respect
to self intersections and so on. However, if they were corrupt,
I assume that an assertion would occur earlier, namely during the
NEF polyhedra creation, not during Minkowski sum computation, right?

Best
Bernhard