Kernel::Orientation_2 Concept Reference

Definition

Refines

AdaptableTernaryFunction

See also

CGAL::orientation()

Operations
A model of this concept must provide:
Orientation	operator() (const Kernel::Point_2 &p, const Kernel::Point_2 &q, const Kernel::Point_2 &r)
	returns CGAL::LEFT_TURN, if r lies to the left of the oriented line l defined by p and q, returns CGAL::RIGHT_TURN if r lies to the right of l, and returns CGAL::COLLINEAR if r lies on l.
Orientation	operator() (const Kernel::Vector_2 &u, const Kernel::Vector_2 &v)
	returns CGAL::LEFT_TURN if u and v form a left turn, returns CGAL::RIGHT_TURN if u and v form a right turn, and returns CGAL::COLLINEAR if u and v are collinear.