CGAL users discussion list

[Jack77 <>]

Hi;
I am trying to use CSG difference in CGAL using meshes i have in my program;
My program has mesh information as 3d Vertices (x,y,z) and Polygons
(triangles) indices to vertices (3 indices to vertices per triangle); As you
can see, it's a very simple representation;

To use CGAL CSG, i need to convert the "to be substracted mesh" and the
"substractor" mesh each to a Nef_polyhedron_3 object;
Can i do this conversion?, i don't have edge or half edge informations on my
mesh info.
If i can do it, how to get the resulting difference mesh?

I would be very grateful to have a step by step information on how to
accomplish this. 
(convert to Nef_polyhedron_3; Do CSG substract, get the resulting
Nef_polyhedron_3, convert back to my simple mesh as vertices and triangle
indices)
Thank you for your help;

Jack


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