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Hi,

I want to know if there's any possibility to visualize (or export to OFF 
file) 
an object based triangulation data structure. Actuallly, my definitions are:

struct K : CGAL::Exact_predicates_inexact_constructions_kernel {};
typedef CGAL::Triangulation_vertex_base_2<K>             Vbb;
typedef CGAL::Triangulation_hierarchy_vertex_base_2<Vbb> Vb;
typedef CGAL::Triangulation_face_base_2<K>               Fb;
typedef CGAL::Triangulation_data_structure_2<Vb,Fb>      Tds;
typedef CGAL::Delaunay_triangulation_2<K,Tds>            Dt;
typedef CGAL::Triangulation_hierarchy_2<Dt>              Triangulation;

typedef Triangulation::Vertex_handle    Vertex_handle;
typedef Triangulation::Face_handle      Face_handle;




My purpose is to build and then visualize a triangulation by defining each
vertex and each triangle seperately, something like this (considering the
previous definitions):

Triangulation T; 
Vertex_handle v1 = T.insert(Point (0,0));
Vertex_handle v2 = T.insert(Point (1,0));
Vertex_handle v3 = T.insert(Point (0,1));
Face_handle f2 =  T.create_face(v1, v2, v3);

But I dont' know if it is possible to viusalize that (or export the generated
triangulation) ?
I tried the following (using  CGAL/Qt/TriangulationGraphicsItem.h):

CGAL::Qt::TriangulationGraphicsItem<Triangulation> * m_p_tr
        m_p_dgi = new CGAL::Qt::TriangulationGraphicsItem<Triangulation>(& T);

But it doesn't work.

Any suggestion is helpful
Best regards,

Youssef ALJ