CGAL users discussion list

["Laurent Rineau (CGAL/GeometryFactory)" <>]

Le Tuesday 07 October 2014 17:12:25 Ruud Vlaming a écrit :
> Hey Guys,
> 
> I get the error:
> 
> Point p[-9.91211 -13.5246 -10.8856], dim=1 and q[-9.9571 -13.5666 -10.9184],
> dim=1 form an edge but do not intersect ! CGAL error: assertion violation!
> Expression : minimal_size_ > 0 || c3t3_.is_valid()
> File       : /opt/local/include/CGAL/Mesh_3/Protect_edges_sizing_field.h
> Line       : 370
> 
> and stumbled on this link:
> 
>  
> http://cgal-discuss.949826.n4.nabble.com/Problem-when-meshing-polyhedron-wi
> th-sharp-features-td4659217.html
> 
> Are those issues solved in CGAL 4.4_0?
> 
> If so, what might be causing this? The stl used
> was checked with MeshLab to be singly connected,
> but has same very sharp features and "tunnels".
> 
> Thank you for any assistance.

There is a bug in the file <CGAL/Mesh_3/Protect_edges_sizing_field.h>, in 
CGAL-4.5-beta1. I assume that you are using that version of CGAL. The bug is 
not present in the previous released version CGAL-4.4, and it will be fixed 
in 
next version CGAL-4.5, coming soon.

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/