CGAL users discussion list

[Olivier Devillers <>]

Le 4/18/12 1:40 PM, sgdimitris a écrit :
> *Olivier:* What do you mean by dualize? Sorry, but I didn't understand it,
> maybe cause I'm not so experienced in using cgal.

you have a bijection between planes and points
e.g.
plane ax+by+cz = 1 <-->point (a,b,c)
or
point p <-->  plane orthogonal to vector op, through the point p/p^2


Through this bijection, the intersection of halfspaces correspond to 
convex hull of points