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SimpleSnapRounder.h

00001 /**********************************************************************
00002  * $Id: SimpleSnapRounder.h 2777 2009-12-03 19:41:15Z mloskot $
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/SimpleSnapRounder.java rev. 1.4 (JTS-1.9)
00017  *
00018  **********************************************************************/
00019 
00020 #ifndef GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H
00021 #define GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H
00022 
00023 #include <geos/export.h>
00024 
00025 #include <vector>
00026 
00027 #include <geos/inline.h>
00028 
00029 #include <geos/noding/Noder.h> // for inheritance
00030 #include <geos/algorithm/LineIntersector.h> // for composition
00031 #include <geos/geom/Coordinate.h> // for use in vector
00032 #include <geos/geom/PrecisionModel.h> // for inlines (should drop)
00033 
00034 // Forward declarations
00035 namespace geos {
00036         namespace geom {
00037                 //class PrecisionModel;
00038         }
00039         namespace algorithm {
00040                 class LineIntersector;
00041         }
00042         namespace noding {
00043                 class SegmentString;
00044                 class NodedSegmentString;
00045                 namespace snapround {
00046                         class HotPixel;
00047                 }
00048         }
00049 }
00050 
00051 namespace geos {
00052 namespace noding { // geos::noding
00053 namespace snapround { // geos::noding::snapround
00054 
00073 class GEOS_DLL SimpleSnapRounder: public Noder { // implements NoderIface
00074 
00075 public:
00076 
00077         SimpleSnapRounder(const geom::PrecisionModel& newPm);
00078 
00079         std::vector<SegmentString*>* getNodedSubstrings() const;
00080 
00081         void computeNodes(std::vector<SegmentString*>* inputSegmentStrings);
00082 
00083         void add(const SegmentString* segStr);
00084 
00092         void computeVertexSnaps(const std::vector<SegmentString*>& edges);
00093 
00094 private:
00095 
00096         const geom::PrecisionModel& pm;
00097         algorithm::LineIntersector li;
00098         double scaleFactor;
00099         std::vector<SegmentString*>* nodedSegStrings;
00100 
00101         void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings);
00102 
00103         void snapRound(std::vector<SegmentString*>* segStrings,
00104                         algorithm::LineIntersector& li);
00105 
00117         void findInteriorIntersections(std::vector<SegmentString*>& segStrings,
00118                         algorithm::LineIntersector& li, std::vector<geom::Coordinate>& ret);
00119 
00125         void computeSnaps(const std::vector<SegmentString*>& segStrings,
00126                 std::vector<geom::Coordinate>& snapPts);
00127 
00128         void computeSnaps(NodedSegmentString* ss, std::vector<geom::Coordinate>& snapPts);
00129 
00135         void computeVertexSnaps(NodedSegmentString* e0, NodedSegmentString* e1);
00136 
00137     // Declare type as noncopyable
00138     SimpleSnapRounder(const SimpleSnapRounder& other);
00139     SimpleSnapRounder& operator=(const SimpleSnapRounder& rhs);
00140 };
00141 
00142 } // namespace geos::noding::snapround
00143 } // namespace geos::noding
00144 } // namespace geos
00145 
00146 //#ifdef GEOS_INLINE
00147 //# include "geos/noding/snapround/SimpleSnapRounder.inl"
00148 //#endif
00149 
00150 #endif // GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H
00151 
00152 /**********************************************************************
00153  * $Log$
00154  * Revision 1.3  2006/05/03 15:02:49  strk
00155  * moved some implementations from header to .cpp file (taken out of inline)
00156  *
00157  * Revision 1.2  2006/03/24 09:52:41  strk
00158  * USE_INLINE => GEOS_INLINE
00159  *
00160  * Revision 1.1  2006/03/14 12:55:56  strk
00161  * Headers split: geomgraphindex.h, nodingSnapround.h
00162  *
00163  **********************************************************************/
00164 

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