CGAL users discussion list

[Olivier Devillers <>]

Le 05/10/15 16:59, Thiago Milanetto Schlittler a écrit :

Hello!

   I'm having a really weird bug when trying to intersect two triangles inside a 3D space while using the `CGAL::Exact_predicates_inexact_constructions_kernel` kernel. Essentially, I have two triangles that should not intersect. The function `CGAL::do_intersect` returns always `false` when testing them, but the function `CGAL::intersection` builds an intersection, depending on the order of the vertices of the triangles. 

   The bug disappears when I use the `CGAL::Exact_predicates_exact_constructions_kernel` kernel, but I can't afford to use it in the real case scenario.

So, it does not look like a bug.
If you use inexact constructions, constructions are inexact....