\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 5.0.2 - 2D and 3D Linear Geometry Kernel
Functions
CGAL::approximate_dihedral_angle()
2D and 3D Linear Geometry Kernel Reference » Global Kernel Functions

 



Functions


template<typename Kernel > 


Kernel::FT CGAL::approximate_dihedral_angle (const CGAL::Point_3< Kernel > &p, const CGAL::Point_3< Kernel > &q, const CGAL::Point_3< Kernel > &r, const CGAL::Point_3< Kernel > &s)


 returns an approximation of the signed dihedral angle in the tetrahedron pqrs of edge pq.  More...


 




Function Documentation



◆ approximate_dihedral_angle()








template<typename Kernel > 

      

        

          Kernel::FT CGAL::approximate_dihedral_angle 
          (
          const CGAL::Point_3< Kernel > & 
          p, 
        

        

          
          
          const CGAL::Point_3< Kernel > & 
          q, 
        

        

          
          
          const CGAL::Point_3< Kernel > & 
          r, 
        

        

          
          
          const CGAL::Point_3< Kernel > & 
          s 
        

        

          
          )
          
        

      





#include <CGAL/Kernel/global_functions.h>



returns an approximation of the signed dihedral angle in the tetrahedron pqrs of edge pq. 


The sign is negative if orientation(p,q,r,s) is CGAL::NEGATIVE and positive otherwise. The angle is given in degrees. 
Precondition
p,q,r and p,q,s are not collinear.