CGAL users discussion list

[Hanjoerg Seybold <>]

Hello!
Thank you very much for the answer. For a segment this is indeed possible, 
but what is the case if the halfedge is a ray? Even if target()->point() 
would return infinity the direction fo the ray is not well defined anymore,
but the halfedge direction is well defined in the sense  that it is e.g. the 
dual of a delaunay edge.
Thansk hj 

Olivier Devillers writes: 

> > Halfedge_around_vertex_circulator cit,
> > i can check with cit->is_ray() and cit->is_segment() if the halfedge si 
> > finite or infinite, but how can i make a ray out of a infinite halfedge 
> > in the sense that i can intersect it with another ray or segment.
>
> from the manual, it seems that cit->target()->point() and 
> cit->source()->point()
> return the end points of your segment.
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