SnappingNoder.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.
 *
 **********************************************************************
 *
 * Last port: noding/snap/SnappingNoder.java
 *
 **********************************************************************/

#pragma once

#include <geos/export.h>

#include <geos/geom/Coordinate.h>
#include <geos/geom/Envelope.h>
#include <geos/noding/Noder.h>
#include <geos/noding/snap/SnappingPointIndex.h>


// Forward declarations
namespace geos {
namespace geom {
class Envelope;
class PrecisionModel;
}
namespace noding {
class NodedSegmentString;
}
}

namespace geos {
namespace noding { // geos::noding
namespace snap {   // geos::noding::snap

class GEOS_DLL SnappingNoder : public Noder {

private:

    // Members
    double snapTolerance;
    SnappingPointIndex snapIndex;
    std::vector<SegmentString*>* nodedResult;

    // Methods
    void snapVertices(std::vector<SegmentString*>& segStrings, std::vector<SegmentString*>& nodedStrings);

    SegmentString* snapVertices(SegmentString* ss);

    std::unique_ptr<std::vector<geom::Coordinate>> snap(geom::CoordinateSequence* cs);

    std::unique_ptr<std::vector<SegmentString*>> snapIntersections(std::vector<SegmentString*>& inputSS);


public:

    SnappingNoder(double p_snapTolerance)
        : snapTolerance(p_snapTolerance)
        , snapIndex(p_snapTolerance)
        {}

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

    void computeNodes(std::vector<SegmentString*>* inputSegStrings) override;


};


} // namespace geos::noding::snap
} // namespace geos::noding
} // namespace geos