 CGAL 5.4 - 2D and 3D Linear Geometry Kernel
Kernel::LessRotateCCW_2 Concept Reference

## Definition

Refines:
AdaptableFunctor (with three arguments)

## Operations

A model of this concept must provide:

bool operator() (const Kernel::Point_2 &p, const Kernel::Point_2 &q, const Kernel::Point_2 &r)
returns true iff the three points p, q and r form a left turn or if they are collinear and the distance of q to p is larger than the distance of r to p, where p is the point passed to the object at construction. More...

## ◆ operator()()

 bool Kernel::LessRotateCCW_2::operator() ( const Kernel::Point_2 & p, const Kernel::Point_2 & q, const Kernel::Point_2 & r )

returns true iff the three points p, q and r form a left turn or if they are collinear and the distance of q to p is larger than the distance of r to p, where p is the point passed to the object at construction.

Precondition
p does not lie in the interior of the segment rq, i.e. p is an extreme point with respect to $$\{p,q,r\}$$.