CGAL users discussion list

[Laurent Rineau <>]

On Wednesday 07 May 2008 14:57:42 samuel kim wrote:
> Hi Mathieu and Janssens,
>
> Thank you very much for your reply, I think you are right. So I tried it
> but an error coming out.
> When I run as the below,
>
> Halfedge_around_facet_circulator pHalfedge = pFacet->facet_begin();
> pHalfedge = pHalfedge->prev()->opposite();

It seems that you do not want to use pHalfedge as a circulator at all. If I 
remember well, circulators are implicitly castable to handles, so the 
following code should compile and run:

// The type of pHalfedge is Halfedge_handle, 
// even if it is constructed from a circulator
Halfedge_handle pHalfedge = pFacet->facet_begin();
pHalfedge = pHalfedge->prev()->opposite();

Actually, instead of using pFacet->facet_begin(), you should use 
pFacet->haldedge(), which is one arbitrary incident halfedge of the facet.

-- 
Laurent Rineau
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