See also: CGAL::coplanar_orientation(); CGAL::coplanar_side_of_bounded_circle()

Functions
template<typename Kernel >
bool	CGAL::coplanar (const CGAL::Point_3< Kernel > &p, const CGAL::Point_3< Kernel > &q, const CGAL::Point_3< Kernel > &r, const CGAL::Point_3< Kernel > &s)
	returns `true`, if `p`, `q`, `r`, and `s` are coplanar.

Functions