MCIndexSnapRounder.h

/**********************************************************************
 * $Id: MCIndexSnapRounder.h 2556 2009-06-06 22:22:28Z strk $
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.refractions.net
 *
 * Copyright (C) 2006      Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************
 *
 * Last port: noding/snapround/MCIndexSnapRounder.java rev. 1.3 (JTS-1.9)
 *
 **********************************************************************/

#ifndef GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H
#define GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H

#include <geos/export.h>

#include <vector>

#include <geos/inline.h>

#include <geos/noding/Noder.h> // for inheritance
#include <geos/algorithm/LineIntersector.h> // for composition
#include <geos/geom/Coordinate.h> // for use in vector

// Forward declarations
namespace geos {
        namespace geom {
                class PrecisionModel;
        }
        namespace algorithm {
                class LineIntersector;
        }
        namespace noding {
                class SegmentString;
                class NodedSegmentString;
                class MCIndexNoder;
                namespace snapround {
                        //class HotPixel;
                        class MCIndexPointSnapper;
                }
        }
}

namespace geos {
namespace noding { // geos::noding
namespace snapround { // geos::noding::snapround


class GEOS_DLL MCIndexSnapRounder: public Noder { // implments Noder

private:

        geom::PrecisionModel& pm;

        algorithm::LineIntersector li;

        double scaleFactor;

        std::vector<SegmentString*>* nodedSegStrings;

        std::auto_ptr<MCIndexPointSnapper> pointSnapper;

        void snapRound(MCIndexNoder& noder, std::vector<SegmentString*>* segStrings);

        
        void findInteriorIntersections(MCIndexNoder& noder,
                        std::vector<SegmentString*>* segStrings,
                        std::vector<geom::Coordinate>& intersections);

        void computeIntersectionSnaps(std::vector<geom::Coordinate>& snapPts);

        void computeVertexSnaps(NodedSegmentString* e);
        
        void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings);

public:

        MCIndexSnapRounder(geom::PrecisionModel& nPm);

        std::vector<SegmentString*>* getNodedSubstrings() const;

        void computeNodes(std::vector<SegmentString*>* segStrings);
 
        void computeVertexSnaps(std::vector<SegmentString*>& edges);

};


} // namespace geos::noding::snapround
} // namespace geos::noding
} // namespace geos

#ifdef GEOS_INLINE
# include <geos/noding/snapround/MCIndexSnapRounder.inl>
#endif

#endif // GEOS_NODING_SNAPROUND_MCINDEXSNAPROUNDER_H

/**********************************************************************
 * $Log$
 * Revision 1.2  2006/03/24 09:52:41  strk
 * USE_INLINE => GEOS_INLINE
 *
 * Revision 1.1  2006/03/14 12:55:56  strk
 * Headers split: geomgraphindex.h, nodingSnapround.h
 *
 **********************************************************************/

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