bintree/Key.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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.
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
 
// Forward declarations
namespace geos {
namespace index {
namespace bintree {
class Interval;
}
}
}
 
namespace geos {
namespace index { // geos::index
namespace bintree { // geos::index::bintree
 
class GEOS_DLL Key {
 
public:
 
    static int computeLevel(Interval* newInterval);
 
    Key(Interval* newInterval);
 
    ~Key();
 
    double getPoint();
 
    int getLevel();
 
    Interval* getInterval();
 
    void computeKey(Interval* itemInterval);
 
private:
 
    // the fields which make up the key
    double pt;
    int level;
 
    // auxiliary data which is derived from the key for use in computation
    Interval* interval;
 
    void computeInterval(int level, Interval* itemInterval);
};
 
} // namespace geos::index::bintree
} // namespace geos::index
} // namespace geos