CGAL users discussion list

[Sylvain Pion <>]

Sylvain Pion wrote:
> cyril Bordreuil wrote:
> > hi everybody
> > I use a constrained triangulation 2 with face_base_info. In my 
> > constructor of info, i initialize a variable at -1.
> > Then, i insert a point in the triangulation. I thought that new face 
> > around the new vertex would be created but my variable
> > in info was not at -1. Any Hints?
> > Must i enforce every new face at -1?
>
> I am afraid that there is currently no easy solution, you have to go over
> all the "new" faces and re-initialize your data.  This is not too hard
> since in this case you only have to walk around the new vertex.

Following up to myself : there is actually a way to cheat, probably with
a small performance impact : define your face_base class in the hard way
(not using the with_info class), and overload its set_neighbor() function
so that it re-initialize your data.

--
Sylvain Pion
INRIA Sophia-Antipolis
Geometrica Project-Team
CGAL, http://cgal.org/