Periodic_3_triangulation_3/colored_vertices.cpp

#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
 
#include <CGAL/Periodic_3_Delaunay_triangulation_traits_3.h>
#include <CGAL/Periodic_3_Delaunay_triangulation_3.h>
#include <CGAL/Triangulation_vertex_base_with_info_3.h>
 
#include <CGAL/IO/Color.h>
 
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Periodic_3_Delaunay_triangulation_traits_3<K> Gt;
 
typedef CGAL::Periodic_3_triangulation_ds_vertex_base_3<> VbDS;
typedef CGAL::Triangulation_vertex_base_3<Gt, VbDS>       Vb;
 
typedef CGAL::Periodic_3_triangulation_ds_cell_base_3<> CbDS;
typedef CGAL::Triangulation_cell_base_3<Gt, CbDS>       Cb;
 
typedef CGAL::Triangulation_vertex_base_with_info_3<CGAL::IO::Color, Gt, Vb> VbInfo;
typedef CGAL::Triangulation_data_structure_3<VbInfo, Cb>                 TDS;
typedef CGAL::Periodic_3_Delaunay_triangulation_3<Gt, TDS>               P3DT3;
 
typedef P3DT3::Point   Point;
 
int main(int, char**)
{
  P3DT3 T;
 
  T.insert(Point(0,0,0));
  T.insert(Point(.1,0,0));
  T.insert(Point(0,.1,0));
  T.insert(Point(0,0,.1));
  T.insert(Point(.2,.2,.2));
  T.insert(Point(.9,0,.1));
 
  // Set the color of finite vertices of degree 6 to red.
  P3DT3::Vertex_iterator vit;
  for (vit = T.vertices_begin(); vit != T.vertices_end(); ++vit) {
    if (T.degree(vit) == 16) {
      vit->info() = CGAL::IO::red();
    }
  }
 
  return 0;
}