SimpleSnapRounder.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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/SimpleSnapRounder.java r320 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H
#define GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_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
#include <geos/geom/PrecisionModel.h> // for inlines (should drop)
 
// Forward declarations
namespace geos {
namespace geom {
//class PrecisionModel;
}
namespace algorithm {
class LineIntersector;
}
namespace noding {
class SegmentString;
class NodedSegmentString;
namespace snapround {
class HotPixel;
}
}
}
 
namespace geos {
namespace noding { // geos::noding
namespace snapround { // geos::noding::snapround
 
class GEOS_DLL SimpleSnapRounder: public Noder { // implements NoderIface
 
public:
 
    SimpleSnapRounder(const geom::PrecisionModel& newPm);
 
    std::vector<SegmentString*>* getNodedSubstrings() const override;
 
    void computeNodes(std::vector<SegmentString*>* inputSegmentStrings) override;
 
    void add(const SegmentString* segStr);
 
    void computeVertexSnaps(const std::vector<SegmentString*>& edges);
 
private:
 
    const geom::PrecisionModel& pm;
    algorithm::LineIntersector li;
    double scaleFactor;
    std::vector<SegmentString*>* nodedSegStrings;
 
    void checkCorrectness(std::vector<SegmentString*>& inputSegmentStrings);
 
    void snapRound(std::vector<SegmentString*>* segStrings,
                   algorithm::LineIntersector& li);
 
    void findInteriorIntersections(std::vector<SegmentString*>& segStrings,
                                   algorithm::LineIntersector& li, std::vector<geom::Coordinate>& ret);
 
    void computeSnaps(const std::vector<SegmentString*>& segStrings,
                      std::vector<geom::Coordinate>& snapPts);
 
    void computeSnaps(NodedSegmentString* ss, std::vector<geom::Coordinate>& snapPts);
 
    void computeVertexSnaps(NodedSegmentString* e0, NodedSegmentString* e1);
 
    // Declare type as noncopyable
    SimpleSnapRounder(const SimpleSnapRounder& other) = delete;
    SimpleSnapRounder& operator=(const SimpleSnapRounder& rhs) = delete;
};
 
} // namespace geos::noding::snapround
} // namespace geos::noding
} // namespace geos
 
#endif // GEOS_NODING_SNAPROUND_SIMPLESNAPROUNDER_H