CGAL 5.1 - 2D and 3D Linear Geometry Kernel
Kernel::ConstructOppositeDirection_2 Concept Reference

Definition

Refines:
AdaptableFunctor (with one argument)
See also
CGAL::Direction_2<Kernel>

Operations

A model of this concept must provide:

Kernel::Direction_2 operator() (const Kernel::Direction_2 &d)
 returns the direction opposite to d.