CGAL users discussion list

[Youssef ALJ <>]

Hi all,

I'd like to know if there's any possibility for a given triangulation to access to vertices' coordinates once this triangulation is constructed.

Suppose we have the following code (from Geomview demo):

#include <CGAL/Cartesian.h>
#include <CGAL/Triangulation_euclidean_traits_xy_3.h>
#include <CGAL/Delaunay_triangulation_2.h>
#include <fstream>
#include <iostream>

typedef CGAL::Cartesian<double>  K;
typedef CGAL::Triangulation_euclidean_traits_xy_3<K> Gt3;
typedef Gt3::Point Point3;
typedef CGAL::Delaunay_triangulation_2<Gt3> Terrain;

  

int main()
{

Terrain T;

  std::ifstream iFile("data/points3", std::ios::in);
  Point3 p;
  while ( iFile >> p )
  {   
      T.insert( p );
  }

return 0;

}

Then i'd like to access to vertices' coordinates. The purpose is to change the geometry of this triangulation (3D coordinates) without changing its connectivity (how faces rely on each other). I didn't find in Delaunay_triangulation_2 class any accessor to vertices. Could any body tell me how to do it?
Any suggestion is helpful.

Regards,
Youssef ALJ

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