CGAL users discussion list

[Mariette Yvinec <>]

This is not so easy.
You can count the number of connected components of each mesh
and the number of connected components of its boundary.
A necessary condition for the meshes to have the same topology
is that these number match,
but such a  global match might not be sufficient.
In fact to be able to conclude that both meshes have the same topology
you should be able to match connected components with the same
number of boundaries...

yys wrote:
> hi, all
> Could you tell me how to judge two 2D-meshes have the same topology
> structure? Does CGAL have any functions for this?
> Thank you.
>   

--
Mariette Yvinec
Geometrica project team
INRIA  Sophia-Antipolis