CGAL 6.1 - 2D and 3D Linear Geometry Kernel

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Functions
CGAL::unit_normal()
Reference Manual » Global Kernel Functions

##

## Functions
CGAL::Vector_3< Kernel > | CGAL::unit_normal (const CGAL::Point_3< Kernel > &p, const CGAL::Point_3< Kernel > &q, const CGAL::Point_3< Kernel > &r)
| computes the unit normal vector for the vectors `q-p` and `r-p`.

## Function Documentation

## ◆ unit_normal()

CGAL::Vector_3< Kernel > CGAL::unit_normal | ( | const CGAL::Point_3< Kernel > & | p,
|  | const CGAL::Point_3< Kernel > & | q,
|  | const CGAL::Point_3< Kernel > & | r
| ) |  |

`#include <CGAL/Kernel/global_functions.h>`

computes the unit normal vector for the vectors `q-p` and `r-p`.

Precondition
  The points `p`, `q`, and `r` must not be collinear.