CGAL users discussion list

[Andreas Fabri <>]

Wesley Smith wrote:
> Is there a way to tell what direction half edges of a voronoi diagram
> are pointing that are either rays or unbounded?  I see the
> has_source() and has_target() etc. methods, but for infinte points,
> I'd like to be able to draw something to represent them, so I need
> some kind of slope or point very far away.
>
> thanks,
> wes

Hi Wesley,

Let all rays emanate from a fixed point in the interior of the convex
hull, and draw only from where it starts.
You might take the center of the bounding box or the center of gravity.

andreas