CGAL 5.3 - 2D and 3D Linear Geometry Kernel
Kernel::ConstructOppositeDirection_3 Concept Reference

Definition

Refines:
AdaptableFunctor (with one argument)
See also
CGAL::Direction_3<Kernel>

Operations

A model of this concept must provide:

Kernel::Direction_3 operator() (const Kernel::Direction_3 &d)
 returns the direction opposite to d.