CGAL users discussion list

[Kneuss <>]

Hi All,

I want to iterate in a Polygon-List to finally get the vertices (after that, I
will
draw in OGL).

Unfortunately, I get the following error :

/media/nas_media_for_all/A U T O C A L
C_13_11_09/AC_Moteur/../AC_Polygon/ac_polygon.cpp:202: erreur: conversion from
«std::_List_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> > >» to non-scalar type
«__gnu_cxx::__normal_iterator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >*,
std::vector<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >,
std::allocator<CGAL::Point_2<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> > > > >» requested

My code is here :


void AC_Polygon::drawPartition() const
{

 for (Polygon_iterator poly_it = this->partionsOfPolygon.begin(); poly_it !=
this->partionsOfPolygon.end();poly_it++)
      {

          Vertex_iterator it=(*poly_it).vertices_begin();   // HERE THE ERROR
      }
}

The type Vertex_iterator is defined as following :

typedef  CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef  CGAL::Partition_traits_2<K>                         Traits;
typedef  Traits::Point_2                                     Point_2;
typedef  Traits::Polygon_2                                   Polygon_2;
typedef  Polygon_2::Vertex_iterator                          Vertex_iterator;
typedef  std::list<Polygon_2>                                Polygon_list;
typedef  CGAL::Creator_uniform_2<int, Point_2>               Creator;
typedef  CGAL::Random_points_in_square_2<Point_2, Creator>   Point_generator;
typedef  std::list<Polygon_2>::const_iterator   Polygon_iterator;

Any clue ?

Looking forward for answer !

Gilles