CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Do you have the OFF file? you can sent it privately if you don't
want to share it on the list.

Sebastien.

On 10/27/2014 01:42 PM, deeFisher wrote:
> Hi Sebastien,
>
> here is the code for the model. I've created a polyhedron.isValid() log
> which i've also included (just the beginning and end of the log file) below.
> its saying every other halfedge is a border halfedge even though if i export
> my polyhedron as .off it exports a single shell mesh with no problems...
>
>         void operator()(HDS& hds)
>         {
>                 typedef typename HDS::Vertex   Vertex;
>                 typedef typename Vertex::Point Point;
>
>                 // Postcondition: hds is a valid polyhedral surface.
>                 CGAL::Polyhedron_incremental_builder_3<HDS> B(hds, true);
>                 B.begin_surface(v, f);
>
>                 for (int i = 0; i < (int)coords.size(); i += 3){
>                         B.add_vertex(Point(coords[i + 0], coords[i + 1], 
> coords[i + 2]));
>                 }
>
>
>                 // add the polyhedron triangles
>                 for (static int i = 0; i<(f * 3); i += 3){
>                         B.begin_facet();
>                         B.add_vertex_to_facet(i);
>                         B.add_vertex_to_facet(i+1);
>                         B.add_vertex_to_facet(i+2);
>                         B.end_facet();
>                 }
>
>                 // finish up the surface
>                 B.end_surface();
>
>                 
>         }
>
>
>
> //------------------------------------------
>
> log file:
>
> begin CGAL::Polyhedron_3<...>::is_valid( verb=true, level = 1):
> begin CGAL::HalfedgeDS_const_decorator<HDS>::is_valid( verb=true, level =
> 4):
> halfedge 0
> halfedge 1
>      is border halfedge
> halfedge 2
> halfedge 3
>      is border halfedge
> halfedge 4
> halfedge 5
>      is border halfedge
> halfedge 6
> halfedge 7
>      is border halfedge
>
> ...
>
> halfedge 674288
> halfedge 674289
>      is border halfedge
> halfedge 674290
> halfedge 674291
>      is border halfedge
> summe border halfedges (2*nb) = 674292
> counting border halfedges failed.
> level 4: normalized_border_is_valid( verbose = true)
> end of CGAL::HalfedgeDS_const_decorator<HDS>::is_valid(): structure is NOT
> VALID.
> counting halfedges failed.
> end of CGAL::Polyhedron_3<...>::is_valid(): structure is NOT VALID.
>
>
>
> --
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> http://cgal-discuss.949826.n4.nabble.com/Can-t-convert-polyhedron-3-to-nef-polyehdron-3-tp4660003p4660016.html
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