CGAL users discussion list

Hi,
I have a question. What does it means facet in 3D triangulation? For
example, consider the cell (a,b,c,d) of the triangulation. Contains the
triangluation following facets only? :

a,b,c
a,b,d
a,d,c
b,d,c


Or are there two facets for each side of each triangle? :

a,b,c
c,b,a
a,b,d
b,b,a
a,d,c
c,d,a
b,d,c
c,d,d


Which kind will give me following code? :

for (Dh::Facet_iterator it = T.facets_begin(); it != T.facets_end(); ++it)
{
};


I have another question too. How can I determine incident cells of the
facet denoted by thee vertex handels?


Many Thanks.

Michal Jancosek