CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Could you provide an example (you can send it directly to me if you want)?


Sebastien.


On 06/12/2013 02:15 AM, Cody Rose wrote:
> Hello,
>
> I have run into a repeated problem where I have a Polyhedron_3 such that
> is_valid() and is_closed() both return true, but conversion to
> Nef_polyhedron_3 (using the Nef_polyhedron_3 constructor) fails. In
> Debug builds, an assertion is violated, and in Release builds, my
> program just crashes. I see in the documentation that this conversion is
> only possible if the point set is an oriented closed 2-manifold, and the
> function Polyhedron_3::is_closed() tests this, but this is clearly not
> the only failure mode, and the fact that any other failure modes that I
> don't anticipate results in crashes for my users is extremely
> unfortunate. Is there any way to force CGAL to fail this conversion in a
> predictable, catchable way even with NDEBUG defined? (Alternatively, is
> this just a bug? If so I can provide an example polygon that does this.)
>
> Thank you,
> Cody Rose