SnapRoundingIntersectionAdder.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2020 Paul Ramsey <pramsey@cleverelephant.ca>
 *
 * 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.
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
 
#include <vector>
#include <memory>
 
#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/CoordinateSequence.h>
#include <geos/geom/PrecisionModel.h> // for inlines (should drop)
#include <geos/noding/SegmentIntersector.h>
 
 
// Forward declarations
namespace geos {
namespace geom {
class PrecisionModel;
}
namespace noding {
class SegmentString;
class NodedSegmentString;
namespace snapround {
class HotPixel;
}
}
}
 
namespace geos {
namespace noding { // geos::noding
namespace snapround { // geos::noding::snapround
 
class GEOS_DLL SnapRoundingIntersectionAdder: public SegmentIntersector { // implements SegmentIntersector
 
private:
 
    algorithm::LineIntersector li;
    geom::CoordinateSequence intersections;
    // const geom::PrecisionModel* pm;
    double nearnessTol;
 
    void processNearVertex(const geom::CoordinateSequence& seq0,
                           std::size_t ptIndex,
                           const geom::CoordinateSequence& seq1,
                           std::size_t segIndex,
                           SegmentString* edge);
 
    bool isNearSegmentInterior(const geom::CoordinateXY& p, const geom::CoordinateXY& p0, const geom::CoordinateXY& p1) const;
 
public:
 
    SnapRoundingIntersectionAdder(double p_nearnessTol)
        : SegmentIntersector()
        , intersections(geom::CoordinateSequence::XYZM(0))
        , nearnessTol(p_nearnessTol)
    {}
 
    geom::CoordinateSequence getIntersections() { return std::move(intersections); };
 
    void processIntersections(SegmentString* e0, std::size_t segIndex0, SegmentString* e1, std::size_t segIndex1) override;
 
    bool isDone() const override { return false; }
 
 
};
 
} // namespace geos::noding::snapround
} // namespace geos::noding
} // namespace geos