CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Amir Vaxman wrote:
> That fixed it. However, it seems odd that I have to. AFAIK,
> normalize_border() should just re-arrange the boundary edges, no? 
The number of border halfedges is internally computed (stored in a
member variable) when calling normalized_border.

> Also, the
> same problem occurs when using a subdivision method, when the number of
> border halfedges was not updated until normalize_border() was called.
>
> Amir.
>
> -----Original Message-----
> From: Sebastien Loriot (GeometryFactory) [mailto:] 
> Sent: Thursday, May 27, 2010 9:13 AM
> To: 
>
> Subject: Re: [cgal-discuss] Polyhedron Incremental Builder does not
> Recognize Border Edges
>
>
>  wrote:
> > Hello,
> >
> > I constructed a polyhedron with borders with the incremental builder (the
> > borders are simply defined as edges which does not have an opposite
> counterpart
> > in any other face constructed), and the polyhedron I get does not
> recognize
> > these edges as borders (size_of_border_edges() produces 0). If I subdivide
> this
> > polyhedron (say, using CC subdivision), the border edges are finally
> revealed.
> > Is this a bug, or did I forget to do something?
> >
> > Amir.
> Hello,
>
> Did you call normalize_border() before calling size_of_border_edges?
>
> S.