Key.h

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 

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