/usr/include/geos/noding/OrientedCoordinateArray.h is in libgeos-dev 3.2.2-3ubuntu1.
This file is owned by root:root, with mode 0o644.
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* $Id: OrientedCoordinateArray.h 2809 2009-12-06 01:05:24Z mloskot $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2009 Sandro Santilli <strk@keybit.net>
*
* 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.
*
**********************************************************************
*
* Last port: noding/OrientedCoordinateArray.java rev. 1.1 (JTS-1.9)
*
**********************************************************************/
#ifndef GEOS_NODING_ORIENTEDCOORDINATEARRAY_H
#define GEOS_NODING_ORIENTEDCOORDINATEARRAY_H
#include <geos/export.h>
//#include <vector>
//#include <iostream>
//#include <geos/inline.h>
// Forward declarations
namespace geos {
namespace geom {
class CoordinateSequence;
}
namespace noding {
//class SegmentString;
}
}
namespace geos {
namespace noding { // geos.noding
/** \brief
* Allows comparing {@link geom::CoordinateSequence}s
* in an orientation-independent way.
*/
class GEOS_DLL OrientedCoordinateArray
{
public:
/**
* Creates a new {@link OrientedCoordinateArray}
* for the given {@link geom::CoordinateSequence}.
*
* @param pts the coordinates to orient
*/
OrientedCoordinateArray(const geom::CoordinateSequence& pts)
:
pts(pts),
orientationVar(orientation(pts))
{
}
/** \brief
* Compares two {@link OrientedCoordinateArray}s for their
* relative order
*
* @return -1 this one is smaller
* @return 0 the two objects are equal
* @return 1 this one is greater
*
* In JTS, this is used automatically by ordered lists.
* In C++, operator< would be used instead....
*/
int compareTo(const OrientedCoordinateArray& o1) const;
private:
static int compareOriented(const geom::CoordinateSequence& pts1,
bool orientation1,
const geom::CoordinateSequence& pts2,
bool orientation2);
/**
* Computes the canonical orientation for a coordinate array.
*
* @param pts the array to test
* @return <code>true</code> if the points are oriented forwards
* @return <code>false</code if the points are oriented in reverse
*/
static bool orientation(const geom::CoordinateSequence& pts);
/// Externally owned
const geom::CoordinateSequence& pts;
bool orientationVar;
// Declare type as noncopyable
OrientedCoordinateArray(const OrientedCoordinateArray& other);
OrientedCoordinateArray& operator=(const OrientedCoordinateArray& rhs);
};
} // namespace geos.noding
} // namespace geos
#endif // GEOS_NODING_ORIENTEDCOORDINATEARRAY_H
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