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[NMoreau <>]

Thank you for your answer!

Actually I'm kind of confused because I didn't made the normal_cycle.h file,
and it is supposed to work without any modification: it has already been
used before and everything worked well, I was asked to do my own Extended
Polyhedron class in order to be able to use normal_cycle.h, that I wasn't
suppose to edit.

However I changed the std::for_each line and there is no more problem here.
I also made a modification in normal_cycle.h for the "typename" error and I
think this will be okay for now.

But I still don't know what to do about the AreaFacetTriangle problem.

I have:

/template <class _Poly>
class Normal_cycle
{
        typedef _Poly                                        Polyhedron;

  typedef typename Polyhedron::Halfedge_data_structure HDS;
  typedef typename Polyhedron::Vertex                  Vertex;
  typedef typename Polyhedron::Halfedge                Halfedge;
  typedef typename Polyhedron::Facet                   Facet;
  
  typedef typename Polyhedron::Vertex_handle           Vertex_handle;
  typedef typename Polyhedron::Halfedge_handle         Halfedge_handle;
  typedef typename Polyhedron::Facet_handle            Facet_handle;

  typedef typename Polyhedron::Vertex_iterator         Vertex_iterator;
  typedef typename Polyhedron::Halfedge_iterator       Halfedge_iterator;
  typedef typename Polyhedron::Edge_iterator           Edge_iterator;
  typedef typename Polyhedron::Facet_iterator          Facet_iterator;

  typedef typename Polyhedron::Halfedge_around_facet_circulator  
                                           
Halfedge_around_facet_circulator;
  typedef typename Polyhedron::Halfedge_around_vertex_circulator 
                                           
Halfedge_around_vertex_circulator;
  typedef typename Polyhedron::Point_3                 Point;
  typedef typename Polyhedron::FT                           FT;
  typedef typename Polyhedron::Vector                       Vector;

...

void principal_curvature_per_vert(Vertex pVertex,
                                       double ppMatrix_sum[3][3])
{
...
Halfedge_around_vertex_circulator pHalfedge = pVertex.vertex_begin();
  Halfedge_around_vertex_circulator pHalfedgeStart = pHalfedge;
...
area+=AreaFacetTriangle(pHalfedge->facet());
...
}

double AreaFacetTriangle(Facet_handle &f)
        {
Halfedge_around_facet_circulator pHalfedge = f->facet_begin();
...
}/

I tried to change the parameters to pointers (/double
AreaFacetTriangle(Facet_handle* f)/)
Then I had no more conversion problem, but:
/normal_cycle.h:345:63: erreur:
‘Normal_cycle<ExtendedPolyhedron&lt;CGAL::Simple_cartesian&lt;float>,
ExtendedItems> >::Facet_handle’ has no member named ‘facet_begin’/



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