CGAL users discussion list

[Laurent Rineau <>]

On Thursday 14 June 2007 08:16:09 pm 

 wrote:
> Dear List,
>
> I have recently downloaded and installed CGAL and have run into a minor
> problem. When I run the attached code, the finite cells include the point
> (0.5,0.5,0.5), which I have not entered. I only want a delaunay
> triangulation of the points I have entered. I have tried to remove that
> point, which corresponds to vertices_begin(), but that results in an
> exception.

During the code, you do:
  Cell=td.finite_cells_begin();

The type Cell is Triangulation::Cell_iterator, which is the same as 
Triangulation::All_cells_iterator. Thus your code has uncertain behaviour.

You should use the types Finite_cells_iterator, and Finite_vertices_iterator, 
and the corresponding methods finite_cells_begin/end() and 
finite_vertices_begin/end().

-- 
Laurent Rineau
INRIA - Sophia Antipolis
BP 93, 2004 Route des Lucioles
06902 Sophia Antipolis Cedex FRANCE