00001 /********************************************************************** 00002 * $Id: Key.h 1820 2006-09-06 16:54:23Z mloskot $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2006 Refractions Research Inc. 00008 * 00009 * This is free software; you can redistribute and/or modify it under 00010 * the terms of the GNU Lesser General Public Licence as published 00011 * by the Free Software Foundation. 00012 * See the COPYING file for more information. 00013 * 00014 **********************************************************************/ 00015 00016 #ifndef GEOS_IDX_BINTREE_KEY_H 00017 #define GEOS_IDX_BINTREE_KEY_H 00018 00019 // Forward declarations 00020 namespace geos { 00021 namespace index { 00022 namespace bintree { 00023 class Interval; 00024 } 00025 } 00026 } 00027 00028 namespace geos { 00029 namespace index { // geos::index 00030 namespace bintree { // geos::index::bintree 00031 00038 class Key { 00039 00040 public: 00041 00042 static int computeLevel(Interval *newInterval); 00043 00044 Key(Interval *newInterval); 00045 00046 ~Key(); 00047 00048 double getPoint(); 00049 00050 int getLevel(); 00051 00052 Interval* getInterval(); 00053 00054 void computeKey(Interval *itemInterval); 00055 00056 private: 00057 00058 // the fields which make up the key 00059 double pt; 00060 int level; 00061 00062 // auxiliary data which is derived from the key for use in computation 00063 Interval *interval; 00064 00065 void computeInterval(int level, Interval *itemInterval); 00066 }; 00067 00068 } // namespace geos::index::bintree 00069 } // namespace geos::index 00070 } // namespace geos 00071 00072 #endif // GEOS_IDX_BINTREE_KEY_H 00073 00074 /********************************************************************** 00075 * $Log$ 00076 * Revision 1.1 2006/03/22 16:01:33 strk 00077 * indexBintree.h header split, classes renamed to match JTS 00078 * 00079 **********************************************************************/ 00080