CGAL users discussion list

[Eric Berberich <>]

Mahmood Naderan wrote:
> > Can you specify "curve" more detailed? 
>
> Hi,
> I mean a "conic arc". I think a conic arc is defined by three point. Am I 
> right?

You have to give src+tgt. And three other points. A third point defined 
only a unique circle. In addition, not every combination of points 
defines a connected arc.

In CGAL, there is Arr_conic_traits_2.h, which also offers an 
intersection predicate. I am not sure, whether it offers line/conic or 
whether it line can be input as "degenerated" conic.

eriC