SnapRoundingIntersectionAdder.h

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/**********************************************************************
 *
 * 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/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)
#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:
    static constexpr int NEARNESS_FACTOR = 100;

    algorithm::LineIntersector li;
    std::unique_ptr<std::vector<geom::Coordinate>> intersections;
    // const geom::PrecisionModel* pm;
    double nearnessTol;

    void processNearVertex(const geom::Coordinate& p, SegmentString* edge, size_t segIndex,
                           const geom::Coordinate& p0, const geom::Coordinate& p1);


public:

    SnapRoundingIntersectionAdder(const geom::PrecisionModel* newPm);

    std::unique_ptr<std::vector<geom::Coordinate>> getIntersections() { return std::move(intersections); };

    void processIntersections(SegmentString* e0, size_t segIndex0, SegmentString* e1, size_t segIndex1) override;

    bool isDone() const override { return false; }


};

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