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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

See Also

CGAL::Direction_2<R>

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www.cgal.org. Aug 13, 2001.