CGAL users discussion list

hi Thomas,

The 2D Circular Kernel provides intersections of circles and circular arcs.
Note that the coordinates of these points (Circular_arc_point_2) are 
algebraic numbers.

Best
    Monique Teillaud

Thomas Zangl - Home wrote:
>  
> Hi!
>
> I tried to figure out how to calculate the intersection of circles and
> the union of them (specificly: the outer hull). 
>
> E.g. 
>
> I have three circles (with the same radius) laying on a line. Each
> center more left then its neighbour. So it forms more or less some kind
> of a "worm". Well, each circle has 2 vertices where it intersects with
> each of its neighbour circles and the hull is the union of all circles. 
>
> How to calculate this? CGAL::intersection does not work (according to
> the documentation) with circles. 
>
> Thank's for input!
>
> Best regards,