\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.3 - 2D and 3D Linear Geometry Kernel

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Kernel::CollinearHasOn_2 Concept Reference
Kernel Function Object Concepts

## Definition

Refines:
  `AdaptableFunctor` (with two arguments)

See Also
  `CGAL::Ray_2<Kernel>`
  `CGAL::Segment_2<Kernel>`

## Operations
A model of this concept must provide:
bool | operator() (const Kernel::Ray_2 &r, const Kernel::Point_2 &p)
| checks if point `p` is on `r`. More...
bool | operator() (const Kernel::Segment_2 &s, const Kernel::Point_2 &p)
| checks if point `p` is on `s`. More...

## Member Function Documentation

bool Kernel::CollinearHasOn_2::operator() | ( | const Kernel::Ray_2 & | r,
|  | const Kernel::Point_2 & | p
| ) |  |

checks if point `p` is on `r`.

Precondition
  `p` is on the supporting line of `r`.

bool Kernel::CollinearHasOn_2::operator() | ( | const Kernel::Segment_2 & | s,
|  | const Kernel::Point_2 & | p
| ) |  |

checks if point `p` is on `s`.

Precondition
  `p` is on the supporting line of `s`.