## CGAL::orthogonal_vector

Vector_3<Kernel> | orthogonal_vector ( Plane_3<Kernel> p)
|  | computes an orthogonal vector of the plane p, which is directed to the positive side of this plane.

Vector_3<Kernel>

orthogonal_vector ( | Point_3<Kernel> p, Point_3<Kernel> q, 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.