CGAL 6.1.2 - 2D and 3D Linear Geometry Kernel

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Kernel::AreOrderedAlongLine_2 Concept Reference
Reference Manual » Concepts » Kernel Function Object Concepts

## Definition

Refines
  `AdaptableTernaryFunction`

See also
  `CGAL::are_ordered_along_line()`

## Operations
A model of this concept must provide:
bool | operator() (const Kernel::Point_2 &p, const Kernel::Point_2 &q, const Kernel::Point_2 &r)
| returns `true`, iff the three points are collinear and `q` lies between `p` and `r`.

## Member Function Documentation

## ◆ operator()()

bool Kernel::AreOrderedAlongLine_2::operator() | ( | const Kernel::Point_2 & | p,
|  | const Kernel::Point_2 & | q,
|  | const Kernel::Point_2 & | r
| ) |  |

returns `true`, iff the three points are collinear and `q` lies between `p` and `r`.

Note that `true` is returned, if `q==p` or `q==r`.