Implements an algorithm to compute the sign of a 2x2 determinant for double precision values robustly. More...
#include <RobustDeterminant.h>
Static Public Member Functions | |
| static int | signOfDet2x2 (double x1, double y1, double x2, double y2) |
| Computes the sign of the determinant of the 2x2 matrix with the given entries, in a robust way. | |
Implements an algorithm to compute the sign of a 2x2 determinant for double precision values robustly.
It is a direct translation of code developed by Olivier Devillers.
The original code carries the following copyright notice:
The original code carries the following copyright notice: Author : Olivier Devillers Olivier.Devillers@sophia.inria.fr http:/www.inria.fr:/prisme/personnel/devillers/anglais/determinant.html
Copyright (c) 1995 by INRIA Prisme Project
BP 93 06902 Sophia Antipolis Cedex, France.
All rights reserved| static int geos::algorithm::RobustDeterminant::signOfDet2x2 | ( | double | x1, |
| double | y1, | ||
| double | x2, | ||
| double | y2 | ||
| ) | [static] |
Computes the sign of the determinant of the 2x2 matrix with the given entries, in a robust way.
1.7.2