/usr/include/geos/noding/Octant.h is in libgeos-dev 3.2.2-3ubuntu1.
This file is owned by root:root, with mode 0o644.
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* $Id: Octant.h 2757 2009-12-01 15:39:41Z mloskot $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2006 Refractions Research Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************/
#ifndef GEOS_NODING_OCTANT_H
#define GEOS_NODING_OCTANT_H
#include <geos/export.h>
#include <geos/inline.h>
#include <geos/util.h>
// Forward declarations
namespace geos {
namespace geom {
class Coordinate;
}
}
namespace geos {
namespace noding { // geos.noding
/** \brief
* Methods for computing and working with octants of the Cartesian plane.
*
* Octants are numbered as follows:
*
* 2|1
* 3 | 0
* ---+--
* 4 | 7
* 5|6
*
* If line segments lie along a coordinate axis, the octant is the lower of the two
* possible values.
*
* Last port: noding/Octant.java rev. 1.2 (JTS-1.7)
*/
class GEOS_DLL Octant {
private:
Octant() {} // Can't instanciate it
public:
/**
* Returns the octant of a directed line segment (specified
* as x and y displacements, which cannot both be 0).
*/
static int octant(double dx, double dy);
/**
* Returns the octant of a directed line segment from p0 to p1.
*/
static int octant(const geom::Coordinate& p0, const geom::Coordinate& p1);
static int octant(const geom::Coordinate* p0, const geom::Coordinate* p1)
{
::geos::ignore_unused_variable_warning(p0);
return octant(*p0, *p1);
}
};
} // namespace geos.noding
} // namespace geos
//#ifdef GEOS_INLINE
//# include "geos/noding/Octant.inl"
//#endif
#endif
/**********************************************************************
* $Log$
* Revision 1.2 2006/03/24 09:52:41 strk
* USE_INLINE => GEOS_INLINE
*
* Revision 1.1 2006/03/09 16:46:49 strk
* geos::geom namespace definition, first pass at headers split
*
**********************************************************************/
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