index/bintree/Node.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.
 *
 **********************************************************************/
 
#ifndef GEOS_IDX_BINTREE_NODE_H
#define GEOS_IDX_BINTREE_NODE_H
 
#include <geos/export.h>
#include <geos/index/bintree/NodeBase.h> // for inheritance
 
// Forward declarations
namespace geos {
        namespace index { 
                namespace bintree { 
                        class Interval;
                }
        }
}
 
namespace geos {
namespace index { // geos::index
namespace bintree { // geos::index::bintree

class GEOS_DLL Node: public NodeBase {
 
public:
 
        static Node* createNode(Interval *itemInterval);
 
        static Node* createExpanded(Node *node,Interval *addInterval);
 
        Node(Interval *newInterval,int newLevel);
 
        ~Node();
 
        Interval* getInterval();
 
        Node* getNode(Interval *searchInterval);
 
        NodeBase* find(Interval *searchInterval);
 
        void insert(Node *node);
 
private:
 
        Interval *interval;
 
        double centre;
 
        int level;
 
        Node* getSubnode(int index);
 
        Node* createSubnode(int index);
 
protected:
 
        bool isSearchMatch(Interval *itemInterval);
};
 
} // namespace geos::index::bintree
} // namespace geos::index
} // namespace geos
 
#endif // GEOS_IDX_BINTREE_NODE_H