GEOS
3.3.2
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00001 /********************************************************************** 00002 * $Id: MCIndexSnapRounder.h 3524 2011-11-30 09:49:58Z 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 r480 (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 li.setPrecisionModel(&pm); 00086 } 00087 00088 std::vector<SegmentString*>* getNodedSubstrings() const { 00089 return NodedSegmentString::getNodedSubstrings(*nodedSegStrings); 00090 } 00091 00092 void computeNodes(std::vector<SegmentString*>* segStrings); 00093 00102 void computeVertexSnaps(std::vector<SegmentString*>& edges); 00103 00104 private: 00105 00107 geom::PrecisionModel& pm; 00108 00109 algorithm::LineIntersector li; 00110 00111 double scaleFactor; 00112 00113 std::vector<SegmentString*>* nodedSegStrings; 00114 00115 std::auto_ptr<MCIndexPointSnapper> pointSnapper; 00116 00117 void snapRound(MCIndexNoder& noder, std::vector<SegmentString*>* segStrings); 00118 00119 00127 void findInteriorIntersections(MCIndexNoder& noder, 00128 std::vector<SegmentString*>* segStrings, 00129 std::vector<geom::Coordinate>& intersections); 00130 00135 void computeIntersectionSnaps(std::vector<geom::Coordinate>& snapPts); 00136 00141 void computeVertexSnaps(NodedSegmentString* e); 00142 00143 void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings); 00144 00145 // Declare type as noncopyable 00146 MCIndexSnapRounder(const MCIndexSnapRounder& other); 00147 MCIndexSnapRounder& operator=(const MCIndexSnapRounder& rhs); 00148 }; 00149 00150 } // namespace geos::noding::snapround 00151 } // namespace geos::noding 00152 } // namespace geos 00153 00154 #ifdef _MSC_VER 00155 #pragma warning(pop) 00156 #endif 00157 00158 #endif // GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H 00159 00160 /********************************************************************** 00161 * $Log$ 00162 * Revision 1.2 2006/03/24 09:52:41 strk 00163 * USE_INLINE => GEOS_INLINE 00164 * 00165 * Revision 1.1 2006/03/14 12:55:56 strk 00166 * Headers split: geomgraphindex.h, nodingSnapround.h 00167 * 00168 **********************************************************************/ 00169