CGAL 5.6 - 2D and 3D Linear Geometry Kernel

Definition

Operations

A model of this concept must provide:

bool operator() (const Kernel::Point_3 &p, const Kernel::Point_3 &q, const Kernel::Point_3 &r, const Kernel::Point_3 &s)
 returns true, if p, q, r, and s are coplanar.