CGAL users discussion list

[Pierre Alliez <>]

if you send me your mesh I may tell you what is wrong
with it.

Lyndon Hill a écrit :
> Hello,
>
> I am trying to load a 3D mesh from an OFF file using
> CGAL::scan_OFF(). The mesh has been generated by some
> simplification software.
>
> I get the following error:
>
> CGAL::Polyhedron_incremental_builder_3<HDS>::
> lookup_halfedge(): input error: facet 302 shares a
> halfedge from vertex 214 to vertex 213 with facet 300.
>
> I don't quite understand why two facets sharing a
> halfedge is a bad thing.
>
> I presume that CGAL is enforcing some restriction to
> ensure correct geometrical processing. In that case,
> is there any software that will load in my "broken"
> mesh and fix it for me ?
>
> thanks in advance,
>
> Lyndon Hill