GEOS
3.2.3
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00001 /********************************************************************** 00002 * $Id: MonotoneChainBuilder.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) 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 * Last port: index/chain/MonotoneChainBuilder.java rev 1.12 (JTS-1.10) 00017 * 00018 **********************************************************************/ 00019 00020 #ifndef GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_H 00021 #define GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_H 00022 00023 #include <geos/export.h> 00024 #include <vector> 00025 00026 // Forward declarations 00027 namespace geos { 00028 namespace geom { 00029 class CoordinateSequence; 00030 } 00031 namespace index { 00032 namespace chain { 00033 class MonotoneChain; 00034 } 00035 } 00036 } 00037 00038 namespace geos { 00039 namespace index { // geos::index 00040 namespace chain { // geos::index::chain 00041 00048 class GEOS_DLL MonotoneChainBuilder { 00049 00050 public: 00051 00052 MonotoneChainBuilder(){} 00053 00059 static std::vector<MonotoneChain*>* getChains( 00060 const geom::CoordinateSequence *pts, 00061 void* context); 00062 00068 static void getChains(const geom::CoordinateSequence *pts, 00069 void* context, 00070 std::vector<MonotoneChain*>& mcList); 00071 00072 static std::vector<MonotoneChain*>* getChains(const geom::CoordinateSequence *pts) 00073 { 00074 return getChains(pts, NULL); 00075 } 00076 00084 static void getChainStartIndices(const geom::CoordinateSequence& pts, 00085 std::vector<std::size_t>& startIndexList); 00086 00087 private: 00088 00100 static size_t findChainEnd(const geom::CoordinateSequence& pts, 00101 size_t start); 00102 }; 00103 00104 } // namespace geos::index::chain 00105 } // namespace geos::index 00106 } // namespace geos 00107 00108 #endif // GEOS_IDX_CHAIN_MONOTONECHAINBUILDER_H 00109 00110 /********************************************************************** 00111 * $Log$ 00112 * Revision 1.1 2006/03/22 18:12:31 strk 00113 * indexChain.h header split. 00114 * 00115 **********************************************************************/ 00116