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[Omer Ozturk <>]

Hello everyone,

In polyhedron demo, I can't show Scene_c2t3_item in the scene. My code is;

typedef CGAL::Surface_mesh_default_triangulation_3 Tr;
typedef CGAL::Complex_2_in_triangulation_3
 C2t3;
typedef Tr::Geom_traits GT;
typedef GT::Sphere_3 Sphere_3;
typedef GT::Point_3 Point_3;
typedef GT::FT FT;
typedef FT (*Function)(Point_3);

typedef CGAL::Implicit_surface_3<GT, Function> Surface_3;

FT sphere_function (Point_3 p) {
  const FT x2=p.x()*p.x(), y2=p.y()*p.y(), z2=p.z()*p.z();
  return x2+y2+z2-1;
}

void addSphere(){

 Tr tr;       
  C2t3 c2t3 (tr);   

  Surface_3 surface(sphere_function, Sphere_3(CGAL::ORIGIN, 2.));
 
  CGAL::Surface_mesh_default_criteria_3
 criteria(30.,1.,1.);

  CGAL::make_surface_mesh(c2t3, surface, criteria,
CGAL::Non_manifold_tag());

  Scene_item* item = new Scene_c2t3_item(c2t3);
  item->setVisible(true);
  
  scene->addItem(item);
}

It works with no error but the item is not showing when I add it to scene.
Can you help me?

Thanks. 



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