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CGAL 4.7 - 2D and 3D Linear Geometry Kernel
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Functions
CGAL::unit_normal()
2D and 3D Linear Geometry Kernel Reference » 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. More...
 

Function Documentation

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.

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