CGAL users discussion list

[slidertom <>]

Hello,
I use
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Surface_mesh<K::Point_3> Surface_mesh;
from file:
mesh1.off <http://cgal-discuss.949826.n4.nabble.com/file/t376129/mesh1.off>  
mesh1.off is clipped with plane:
K::Point_3 plane_pt(0., 2., 0.);
K::Vector_3 plane_norm(-0.09, 0.09, 0.);
CGAL::Plane_3<K> plane(plane_pt, plane_norm);
CGAL::Polygon_mesh_processing::clip(mesh, plane,
CGAL::Polygon_mesh_processing::parameters::clip_volume(true).use_compact_clipper(true));
result is:
mesh2.off <http://cgal-discuss.949826.n4.nabble.com/file/t376129/mesh2.off>  
and
CGAL::Polygon_mesh_processing::does_self_intersect(mesh);
-> returns true.

I can not understand, why do I get self intersecting mesh.
If mesh2.off is exported to the polygon soup and converted back into the
Surface_mesh -> does_self_intersect returns false in this case -> situation
is fixed.

Expectation: Polygon_mesh_processing::clip should returned closed, non-self
intersecting surface.

Maybe I'm doing something wrong?

Tomas



--
Sent from: http://cgal-discuss.949826.n4.nabble.com/