CGAL::compare_signed_distance_to_plane

Comparison_result	compare_signed_distance_to_plane ( Plane_3<R> h, Point_3<R> p, Point_3<R> q)
		returns LARGER iff the signed distance of p and h is larger than the signed distance of q and h, SMALLER, iff it is smaller, and EQUAL iff both are equal.
Comparison_result	compare_signed_distance_to_plane ( Point_3<R> p, Point_3<R> q, Point_3<R> r, Point_3<R> s, Point_3<R> t)
		returns LARGER iff the signed distance of s and h is larger than the signed distance of t and h, SMALLER, iff it is smaller, and EQUAL iff both are equal, where h is the oriented plane through p, q and r.

See Also

CGAL::compare_distance_to_point
CGAL::compare_signed_distance_to_line
CGAL::has_larger_distance_to_point
CGAL::has_larger_signed_distance_to_line
CGAL::has_larger_signed_distance_to_plane
CGAL::has_smaller_distance_to_point
CGAL::has_smaller_signed_distance_to_line
CGAL::has_smaller_signed_distance_to_plane