
 
returns true iff the signed distance of p and h is smaller than the signed distance of q and h.  

 
returns true iff the signed distance of p and h is smaller than the signed distance of q and h, where h is the oriented plane through p, q and r. 
CGAL::compare_distance_to_point
CGAL::compare_signed_distance_to_line
CGAL::compare_signed_distance_to_plane
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