com.vividsolutions.jts.algorithm

Class RobustDeterminant


public class RobustDeterminant
extends java.lang.Object

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:


 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

 
Version:
1.7

Method Summary

static int
signOfDet2x2(double x1, double y1, double x2, double y2)

Method Details

signOfDet2x2

public static int signOfDet2x2(double x1,
                               double y1,
                               double x2,
                               double y2)