CGAL 5.4 - 2D and 3D Linear Geometry Kernel
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Kernel::ConstructOppositeDirection_3 Concept Reference
2D and 3D Linear Geometry Kernel Reference » Concepts » Kernel Function Object Concepts

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.