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MonotoneChainIndexer.h

00001 /**********************************************************************
00002  * $Id: MonotoneChainIndexer.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) 2005-2006 Refractions Research Inc.
00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************/
00016 
00017 #ifndef GEOS_GEOMGRAPH_INDEX_MONOTONECHAININDEXER_H
00018 #define GEOS_GEOMGRAPH_INDEX_MONOTONECHAININDEXER_H
00019 
00020 #include <geos/export.h>
00021 #include <vector>
00022 
00023 // Forward declarations
00024 namespace geos {
00025         namespace geom {
00026                 class CoordinateSequence;
00027         }
00028 }
00029 
00030 namespace geos {
00031 namespace geomgraph { // geos::geomgraph
00032 namespace index { // geos::geomgraph::index
00033 
00034 
00035 class GEOS_DLL MonotoneChainIndexer{
00036 
00037 public:
00038 
00039         MonotoneChainIndexer(){};
00040 
00041         void getChainStartIndices(const geom::CoordinateSequence*, std::vector<int>&);
00042 
00043 private:
00044 
00045         int findChainEnd(const geom::CoordinateSequence* pts, int start);
00046 
00047 };
00048 
00049 } // namespace geos.geomgraph.index
00050 } // namespace geos.geomgraph
00051 } // namespace geos
00052 
00053 #endif // GEOS_GEOMGRAPH_INDEX_MONOTONECHAININDEXER_H
00054 
00055 /**********************************************************************
00056  * $Log$
00057  * Revision 1.1  2006/03/14 12:55:55  strk
00058  * Headers split: geomgraphindex.h, nodingSnapround.h
00059  *
00060  **********************************************************************/
00061 

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