CGAL 4.7 - 2D and 3D Linear Geometry Kernel: Kernel::CounterclockwiseInBetween_2 Concept Reference

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CGAL 4.7 - 2D and 3D Linear Geometry Kernel

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Kernel::CounterclockwiseInBetween_2 Concept Reference
Kernel Function Object Concepts

## Definition

Refines:
  `AdaptableFunctor` (with three arguments)

See Also
  `CGAL::Direction_2<Kernel>`

## Operations

A model of this concept must provide:
bool | operator() (const Kernel::Direction_2 &d, const Kernel::Direction_2 &d1, const Kernel::Direction_2 &d2)
| returns `true` iff `d` is not equal to `d1`, and while rotating counterclockwise starting at `d1`, `d` is reached strictly before `d2` is reached. More...

## Member Function Documentation

bool Kernel::CounterclockwiseInBetween_2::operator() | ( | const Kernel::Direction_2 & | d,
|  | const Kernel::Direction_2 & | d1,
|  | const Kernel::Direction_2 & | d2
| ) |  |

returns `true` iff `d` is not equal to `d1`, and while rotating counterclockwise starting at `d1`, `d` is reached strictly before `d2` is reached.

Note that true is returned if `d1` == `d2`, unless also `d` == `d1`.