CGAL users discussion list

[Stephane Tayeb <>]

Ramin H wrote:
> Hi,
> I save a c3t3 into out.mesh and it reports 35274 tetrahedra.
> I save the same c3t3 using "fileStream << c3t3.triangulation()" and the file
> shows 41444 cells.
>
> Why are these numbers inconsistent?
>
> -Ramin
> PS. The list does not allow me to attach the files (best compression size is
> 1440K). I can email it if needed.


Hi Ramin,

The triangulation file contains all the tetrahedra of the triangulation, 
whereas the .mesh file contains only the tetrahedra of the triangulation 
which belong to the discretization of the input domain.

This explains probably why your two numbers differ. Let me know if it's 
not the case (you could for example check in the triangulation file how 
many tetrahedra have a non-zero subdomain index).

Stephane.

--
Stephane Tayeb
Software engineer - INRIA Sophia Antipolis
Geometrica Project-Team