CGAL 5.6 - 2D and 3D Linear Geometry Kernel
Kernel::ConstructDirection_3 Concept Reference



A model of this concept must provide:

Kernel::Direction_3 operator() (const Kernel::Vector_3 &v)
 introduces a direction initialized with the direction of vector v.
Kernel::Direction_3 operator() (const Kernel::Line_3 &l)
 introduces the direction of line l.
Kernel::Direction_3 operator() (const Kernel::Ray_3 &r)
 introduces the direction of ray r.
Kernel::Direction_3 operator() (const Kernel::Segment_3 &s)
 introduces the direction of segment s.