CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Brian Sanjeewa Rupasinghe wrote:
> Hi,
>
> When i run the following to create Delanuay Triangulation and index of 
> the vertices,
> Following error occurs. 
>
> error C2039: 'info' : is not a member of 
> 'CGAL::Triangulation_ds_face_base_2<TDS>'
The error is explicit:

no info is in Triangulation_ds_face_base_2. So you need to use 
Triangulation_ds_face_base_with_info_2.

S.

> I am new to CGAL. Please help
>
> Brian.
>
>
>
> // vertex.cpp : Defines the entry point for the console application.
> //
> #include "stdafx.h"
> #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
> #include <CGAL/Projection_traits_xy_3.h>
> #include <CGAL/Delaunay_triangulation_2.h>
> #include <fstream>
> /////////////////
> #include <CGAL/basic.h> 
> #include <CGAL/Triangulation_face_base_2.h> 
> #include <CGAL/Triangulation_vertex_base_2.h> 
> #include <CGAL/Triangulation_vertex_base_with_info_2.h> 
> #include <CGAL/Triangulation_data_structure_2.h> 
>
> typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
> typedef CGAL::Projection_traits_xy_3<K>  Gt;
> typedef K::Point_3   Point;
> typedef CGAL::Delaunay_triangulation_2<Gt> CDT; 
> typedef CGAL::Triangulation_face_base_2<Gt> Fb;   
> typedef CDT::Finite_faces_iterator Finite_faces_iterator;
> typedef CDT::Vertex_handle Vertex_handle; 
> typedef CDT::Face_handle Face_handle; 
> typedef int Index; 
> typedef CGAL::Triangulation_vertex_base_with_info_2<Index, Gt> Info;  
>
> int _tmain()
> {
> //std::ifstream in("data/terrain.cin");
> std::ifstream in("data/test.cin");
> std::istream_iterator<Point> begin(in);
> std::istream_iterator<Point> end;
> CDT dt;
> dt.insert(begin, end);
> //
> // Loop through faces of triangulation and assign index to vertices 
> int q = 0; 
> Finite_faces_iterator fvi = dt.finite_faces_begin();
> for( ; fvi != dt.finite_faces_end(); ++fvi)
> { 
>                 fvi->info()= q++; 
> } 
> //
> std::cout << dt.number_of_vertices() << std::endl;
> std::cout << dt.number_of_faces() << std::endl;
> std::cout << dt;
> return 0;
> }