CGAL users discussion list

[Laurent Rineau <>]

On Friday 13 July 2007 11:37:18 Thomas Zangl - Home wrote:
> Dear List,
>
> I am stuck getting the cell_handle and the index i out of a
> Triangulation_3::Facet_circulator.
>
> I converted some code using a Facet_iterator to a Facet_circulator
> and, even that the circulator and the iterators data_type are supposed
> to be the same, it does not work any longer. (compile error)
>
> The code look like this:
>       Rt_Facet_circulator fCirc,fCircDone = t.incident_facets(*eIt);
>       do {
>         if (t.is_infinite(*fCirc)) continue;
>
>         cout << "---------------------------- Next face
> ----------------------------" << endl; // cell which the facet is part of
>         Rt_Cell_handle cell = fCirc->first;
>         // this is the index of the facet's opposite vertex
>         int faceIndex = fCirc->second;
> }
>
> The errors are of some kind "fCirc" has no member first and no member
> second.

Hi,

Accdording to the documentation, your code should be correct. However, the 
type Facet_circulator of 3D triangulation do not have operator->. That is a 
bug.

For the moment, use "(*fCirc).first" instead of "fCirc->first".

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