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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