CGAL 5.3 - 2D and 3D Linear Geometry Kernel
Functions
CGAL::coplanar()
2D and 3D Linear Geometry Kernel Reference » Global Kernel Functions

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.