CGAL users discussion list

[Olivier Devillers <>]

> As I understand it, GGAL::Random_points_on_sphere_3<CGAL_Point> 
> generates points IN a sphere, rather than only ON the surface of a 
> sphere. 

from the manual

The class Random_points_in_sphere_3<Point_3, Creator> is an input 
iterator creating points uniformly distributed in an open sphere.

The class Random_points_on_sphere_3<Point_3, Creator> is an input 
iterator creating points uniformly distributed on a sphere.


of course with inexact constructions the points are not really on the 
sphere, they are on the sphere
up to rounding errors.