MonotoneChainBuilder.h

00001 /**********************************************************************
00002  * $Id: MonotoneChainBuilder.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) 2001-2002 Vivid Solutions 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_CHAIN_MONOTONECHAINBUILDER_H
00017 #define GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_H
00018 
00019 #include <vector>
00020 
00021 // Forward declarations
00022 namespace geos {
00023         namespace geom {
00024                 class CoordinateSequence;
00025         }
00026         namespace index { 
00027                 namespace chain { 
00028                         class MonotoneChain;
00029                 }
00030         }
00031 }
00032 
00033 namespace geos {
00034 namespace index { // geos::index
00035 namespace chain { // geos::index::chain
00036 
00044 class MonotoneChainBuilder {
00045 
00046 public:
00047 
00048         MonotoneChainBuilder(){}
00049 
00055         static std::vector<MonotoneChain*>* getChains(
00056                         const geom::CoordinateSequence *pts,
00057                         void* context);
00058 
00064         static void getChains(const geom::CoordinateSequence *pts,
00065                         void* context,
00066                         std::vector<MonotoneChain*>& mcList);
00067 
00068         static std::vector<MonotoneChain*>* getChains(const geom::CoordinateSequence *pts)
00069         {
00070                 return getChains(pts, NULL);
00071         }
00072 
00079         static void getChainStartIndices(const geom::CoordinateSequence *pts,
00080                         std::vector<int>& startIndexList);
00081 
00086         static int findChainEnd(const geom::CoordinateSequence *pts, int start);
00087 };
00088 
00089 } // namespace geos::index::chain
00090 } // namespace geos::index
00091 } // namespace geos
00092 
00093 #endif // GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_H
00094 
00095 /**********************************************************************
00096  * $Log$
00097  * Revision 1.1  2006/03/22 18:12:31  strk
00098  * indexChain.h header split.
00099  *
00100  **********************************************************************/
00101 

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