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# Key.h

    00001 /**********************************************************************
    00002  * $Id: Key.h 2556 2009-06-06 22:22:28Z strk $
    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 #include <geos/export.h>
    00020
    00021 // Forward declarations
    00022 namespace geos {
    00023         namespace index {
    00024                 namespace bintree {
    00025                         class Interval;
    00026                 }
    00027         }
    00028 }
    00029
    00030 namespace geos {
    00031 namespace index { // geos::index
    00032 namespace bintree { // geos::index::bintree
    00033
    00040 class GEOS_DLL Key {
    00041
    00042 public:
    00043
    00044         static int computeLevel(Interval *newInterval);
    00045
    00046         Key(Interval *newInterval);
    00047
    00048         ~Key();
    00049
    00050         double getPoint();
    00051
    00052         int getLevel();
    00053
    00054         Interval* getInterval();
    00055
    00056         void computeKey(Interval *itemInterval);
    00057
    00058 private:
    00059
    00060         // the fields which make up the key
    00061         double pt;
    00062         int level;
    00063
    00064         // auxiliary data which is derived from the key for use in computation
    00065         Interval *interval;
    00066
    00067         void computeInterval(int level, Interval *itemInterval);
    00068 };
    00069
    00070 } // namespace geos::index::bintree
    00071 } // namespace geos::index
    00072 } // namespace geos
    00073
    00074 #endif // GEOS_IDX_BINTREE_KEY_H
    00075
    00076 /**********************************************************************
    00077  * $Log$
    00078  * Revision 1.1  2006/03/22 16:01:33  strk
    00079  * indexBintree.h header split, classes renamed to match JTS
    00080  *
    00081  **********************************************************************/
    00082