
template<typename Kernel > 
CGAL::Vector_3< Kernel >  CGAL::orthogonal_vector (const CGAL::Plane_3< Kernel > &p) 
 computes an orthogonal vector of the plane p , which is directed to the positive side of this plane.


template<typename Kernel > 
CGAL::Vector_3< Kernel >  CGAL::orthogonal_vector (const CGAL::Point_3< Kernel > &p, const CGAL::Point_3< Kernel > &q, const CGAL::Point_3< Kernel > &r) 
 computes an orthogonal vector of the plane defined by p , q and r , which is directed to the positive side of this plane.

