## Kernel::ConstructPerpendicularDirection_2

A model for this must provide:

Kernel::Direction_2

fo.operator() ( | Kernel::Direction_2 d, Orientation o)

|  | introduces a direction orthogonal to d. If o is CLOCKWISE, d is rotated clockwise; if o is COUNTERCLOCKWISE, d is rotated counterclockwise. Precondition: o is not COLLINEAR.

### Refines

AdaptableFunctor (with two arguments)

### See Also

CGAL::Direction_2<Kernel>