[geos-commits] r3572 - branches/3.3/src/algorithm

[svn_geos at osgeo.org]

Author: pramsey
Date: 2012-02-16 10:19:41 -0800 (Thu, 16 Feb 2012)
New Revision: 3572

Modified:
   branches/3.3/src/algorithm/RobustDeterminant.cpp
Log:
Update provenance for Olivier Devillers.



Modified: branches/3.3/src/algorithm/RobustDeterminant.cpp
===================================================================
--- branches/3.3/src/algorithm/RobustDeterminant.cpp	2012-02-16 18:19:32 UTC (rev 3571)
+++ branches/3.3/src/algorithm/RobustDeterminant.cpp	2012-02-16 18:19:41 UTC (rev 3572)
@@ -4,9 +4,9 @@
  * GEOS - Geometry Engine Open Source
  * http://geos.refractions.net
  *
- * Copyright (c) Olivier Devillers <Olivier.Devillers at sophia.inria.fr>
+ * Copyright (c) 1995 Olivier Devillers <Olivier.Devillers at sophia.inria.fr>
+ * Copyright (C) 2001-2002 Vivid Solutions Inc.
  * Copyright (C) 2006 Refractions Research Inc.
- * Copyright (C) 2001-2002 Vivid Solutions Inc.
  *
  * This is free software; you can redistribute and/or modify it under
  * the terms of the GNU Lesser General Public Licence as published
@@ -15,6 +15,21 @@
  *
  **********************************************************************
  *
+ * RobustDeterminant 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 at sophia.inria.fr
+ * http:/www.inria.fr:/prisme/personnel/devillers/anglais/determinant.html
+ *
+ * Olivier Devillers has allowed the code to be distributed under
+ * the LGPL (2012-02-16) saying "It is ok for LGPL distribution."
+ *
+ **********************************************************************
+ *
  * Last port: algorithm/RobustDeterminant.java 1.15 (JTS-1.10)
  *
  **********************************************************************/