GEOS 3.3.1
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00001 /********************************************************************** 00002 * $Id: MCIndexSnapRounder.h 3368 2011-05-17 17:04:47Z 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 * Last port: noding/snapround/MCIndexSnapRounder.java r320 (JTS-1.12) 00017 * 00018 **********************************************************************/ 00019 00020 #ifndef GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H 00021 #define GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H 00022 00023 #include <geos/export.h> 00024 00025 #include <geos/noding/Noder.h> // for inheritance 00026 #include <geos/noding/NodedSegmentString.h> // for inlines 00027 #include <geos/noding/snapround/MCIndexPointSnapper.h> // for inines 00028 #include <geos/algorithm/LineIntersector.h> // for composition 00029 #include <geos/geom/Coordinate.h> // for use in vector 00030 #include <geos/geom/PrecisionModel.h> // for inlines 00031 00032 #include <vector> 00033 00034 #ifdef _MSC_VER 00035 #pragma warning(push) 00036 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class 00037 #endif 00038 00039 // Forward declarations 00040 namespace geos { 00041 namespace algorithm { 00042 class LineIntersector; 00043 } 00044 namespace noding { 00045 class SegmentString; 00046 class MCIndexNoder; 00047 } 00048 } 00049 00050 namespace geos { 00051 namespace noding { // geos::noding 00052 namespace snapround { // geos::noding::snapround 00053 00054 00075 class GEOS_DLL MCIndexSnapRounder: public Noder { // implments Noder 00076 00077 public: 00078 00079 MCIndexSnapRounder(geom::PrecisionModel& nPm) 00080 : 00081 pm(nPm), 00082 scaleFactor(nPm.getScale()), 00083 pointSnapper(0) 00084 {} 00085 00086 std::vector<SegmentString*>* getNodedSubstrings() const { 00087 return NodedSegmentString::getNodedSubstrings(*nodedSegStrings); 00088 } 00089 00090 void computeNodes(std::vector<SegmentString*>* segStrings); 00091 00100 void computeVertexSnaps(std::vector<SegmentString*>& edges); 00101 00102 private: 00103 00105 geom::PrecisionModel& pm; 00106 00107 algorithm::LineIntersector li; 00108 00109 double scaleFactor; 00110 00111 std::vector<SegmentString*>* nodedSegStrings; 00112 00113 std::auto_ptr<MCIndexPointSnapper> pointSnapper; 00114 00115 void snapRound(MCIndexNoder& noder, std::vector<SegmentString*>* segStrings); 00116 00117 00125 void findInteriorIntersections(MCIndexNoder& noder, 00126 std::vector<SegmentString*>* segStrings, 00127 std::vector<geom::Coordinate>& intersections); 00128 00133 void computeIntersectionSnaps(std::vector<geom::Coordinate>& snapPts); 00134 00139 void computeVertexSnaps(NodedSegmentString* e); 00140 00141 void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings); 00142 00143 // Declare type as noncopyable 00144 MCIndexSnapRounder(const MCIndexSnapRounder& other); 00145 MCIndexSnapRounder& operator=(const MCIndexSnapRounder& rhs); 00146 }; 00147 00148 } // namespace geos::noding::snapround 00149 } // namespace geos::noding 00150 } // namespace geos 00151 00152 #ifdef _MSC_VER 00153 #pragma warning(pop) 00154 #endif 00155 00156 #endif // GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H 00157 00158 /********************************************************************** 00159 * $Log$ 00160 * Revision 1.2 2006/03/24 09:52:41 strk 00161 * USE_INLINE => GEOS_INLINE 00162 * 00163 * Revision 1.1 2006/03/14 12:55:56 strk 00164 * Headers split: geomgraphindex.h, nodingSnapround.h 00165 * 00166 **********************************************************************/ 00167