CGAL users discussion list

[Mihai Pomarlan <>]

Hello,

I was wondering if there is an already implemented way to convert from a 
Nef_polyhedron::Volume object to a Polyhedron object (similar to 
Nef_polyhedron::convert_to_Polyhedron). Alternatively, whether there is a way 
to initialize a Nef_polyhedron B so that it contains only one of the volumes 
from Nef_polyhedron A.

(where
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;
typedef CGAL::Nef_polyhedron_3<Kernel> Nef_polyhedron;
)

What I actually need: from a mesh with several connected components, produce 
several meshes each with one connected component, corresponding to some 
connected component from the original mesh. 

To explain the whole Nef/Polyhedron mix: I can rely on the meshes to all be 
nice closed orientable manifolds, and because I need binary ops, I represent 
the meshes as Nefs. I convert to Polyhedron because it's friendlier to access 
elements such as vertices and faces, and therefore friendlier to I/O 
extensions. I'd rather not add yet another representation (the Mesh type, and 
the Mesh processing package) if I can avoid it.

Thank you!

Best regards,
Mihai Pomarlan