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[Gilles <>]

Hello,

Everything compiling well in my developpment.
Using CGAL/Polyhedron_incremental_builder_3, I'm creating a new Polyhedron,
it's looks nice at screen.

<http://cgal-discuss.949826.n4.nabble.com/file/n4661258/cgal.png> 

My problem : When trying this :

*if(this->is_closed())
{
        Nef_polyhedron tempo (*this);
}
*

...it crashes miserably, without any message !

The header of my class looks like that :

#include "formvirtual.h"
#include "polygon_ac.h"

#include <CGAL/Polyhedron_3.h>
#include <CGAL/Nef_polyhedron_3.h>
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>

typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel_exact;
typedef CGAL::Polyhedron_3<Kernel_exact>    Polyhedron;
typedef CGAL::Nef_polyhedron_3<Kernel_exact> Nef_polyhedron;
typedef Polyhedron::Halfedge_handle        Halfedge_handle;
typedef Polyhedron::Halfedge_around_facet_const_circulator HF_circulator;
typedef Polyhedron::HalfedgeDS             HalfedgeDS;

class Polyhedron_ac :public FormVirtual,public Polyhedron

Any clue ?



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