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[ChaoM <>]

Hello Sebastien:
    Today I go on do the experience.  I put the polyhedron directly to
Nef,and use union operate, But the output of .off dose not show me the index
of points.
   The more detail codes :

   std::ifstream off1(D:\\.....); 
   std::ifstream off2(D:\\.....); 

   Nef_polyhedron n1,n2, N1,N2, N; 
//read nef polyhedra from off files 
   CGAL::OFF_to_nef_3(off1,n1); 
   CGAL::OFF_to_nef_3(off2,n2); 

   N1 = n1 + n2; 
   N2 = n1 * n2;
   N = N1 - N2;


//convert the nef polyhedron as a polyhedron 
   Polyhedron p; 
   N.convert_to_polyhedron(p); 

   std::ifstream output(D:\\...\\.off); 
   output << p; 



The .off show
OFF
690,0,0
Poins in 3D coordinates...
But no index ?
So should I do the Delaunay to get the index?


"



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