OrientedCoordinateArray.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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

class GEOS_DLL OrientedCoordinateArray
{
public:

        OrientedCoordinateArray(const geom::CoordinateSequence& pts)
                :
                pts(&pts),
                orientationVar(orientation(pts))
        {
        }

        int compareTo(const OrientedCoordinateArray& o1) const;
 
 
private:
 
        static int compareOriented(const geom::CoordinateSequence& pts1,
                                     bool orientation1,
                                     const geom::CoordinateSequence& pts2,
                                     bool orientation2);
 

        static bool orientation(const geom::CoordinateSequence& pts);

        const geom::CoordinateSequence* pts;
 
        bool orientationVar;
 
};

//
inline bool operator< ( const OrientedCoordinateArray& oca1,
                        const OrientedCoordinateArray& oca2 )
{
  return oca1.compareTo(oca2)<0;
}
 
} // namespace geos.noding
} // namespace geos
 
 
#endif // GEOS_NODING_ORIENTEDCOORDINATEARRAY_H