CGAL users discussion list

[Manuel Caroli <>]

Hi Thomas, hi Christian,

the facet iterators as well as the edge iterators return each facet 
resp. edge exactly ONCE.

Thus if for instance you iterate over all facets, you're not guaranteed 
to get all cells and on the other hand there are cells you will get twice.

best

Manuel

Thomas Zangl wrote:
> Hi!
>
> According to and the figure there 
> http://www.cgal.org/Manual/3.3/doc_html/cgal_manual/TriangulationDS_3/Chapter_main.html#TDS3-sec-intro 
>
> the Facet 0 is shared by the 2 cells. If I use a Facet_Iterator, do I 
> visit Facet 0 twice? E.g. once with cell_handle = 0, vertex_handle = 0, 
> and the next time with cell_handle = 1 and vertex_handle = 0?
>
> TIA!
>
> Thomas