CGAL users discussion list

[Camille Wormser <>]

> I want to know the original vertex index of each vertex.
>
> For example, if I gave 100 vertices and a cell is made of vertices
> 30,31,40,49,  I want to know these indices, 30,31,40,49.

This information is not stored in the triangulation. You will have to  
do the conversion from Vertex_handle to original indices yourself.

You have two options for this: either storing the original index in  
the vertex (check the Vertex_with_info class), or building a  
std::map<Vertex_handle, size_t> while you insert the points into the  
triangulation.

Note that if you insert the same point more than once, only one vertex  
is created...
--
Camille