Periodic_2_triangulation_2/p2t2_colored_vertices.cpp

#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 
#include <CGAL/Periodic_2_Delaunay_triangulation_2.h>
#include <CGAL/Periodic_2_Delaunay_triangulation_traits_2.h>
#include <CGAL/Triangulation_vertex_base_with_info_2.h>
#include <CGAL/IO/Color.h>
 
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Periodic_2_Delaunay_triangulation_traits_2<K> GT;
 
typedef CGAL::Periodic_2_triangulation_vertex_base_2<GT>    Vb;
typedef CGAL::Triangulation_vertex_base_with_info_2<CGAL::IO::Color, GT, Vb> VbInfo;
 
typedef CGAL::Periodic_2_triangulation_face_base_2<GT>      Fb;
 
typedef CGAL::Triangulation_data_structure_2<VbInfo, Fb>    Tds;
typedef CGAL::Periodic_2_Delaunay_triangulation_2<GT, Tds>  PDT;
 
typedef PDT::Point   Point;
 
int main()
{
  PDT T;
 
  T.insert(Point(0, 0));
  T.insert(Point(.1, 0));
  T.insert(Point(0, .1));
  T.insert(Point(.2, .2));
  T.insert(Point(.9, 0));
 
  // Set the color of vertices with degree 6 to red.
  PDT::Vertex_iterator vit;
  for (vit = T.vertices_begin(); vit != T.vertices_end(); ++vit)
    if (T.degree(vit) == 6)
      vit->info() = CGAL::IO::red();
 
  return 0;
}