PolygonRingSelfNode.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2021 Paul Ramsey <pramsey@cleverelephant.ca>
 * Copyright (C) 2021 Martin Davis
 *
 * 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 <geos/geom/Coordinate.h>
 
 
namespace geos {      // geos.
namespace operation { // geos.operation
namespace valid {     // geos.operation.valid
 
class GEOS_DLL PolygonRingSelfNode {
    using CoordinateXY = geos::geom::CoordinateXY;
 
private:
 
    CoordinateXY nodePt;
    const CoordinateXY* e00;
    const CoordinateXY* e01;
    const CoordinateXY* e10;
    const CoordinateXY* e11;
 
 
public:
 
    PolygonRingSelfNode(
        const CoordinateXY& p_nodePt,
        const CoordinateXY* p_e00,
        const CoordinateXY* p_e01,
        const CoordinateXY* p_e10,
        const CoordinateXY* p_e11)
        : nodePt(p_nodePt)
        , e00(p_e00)
        , e01(p_e01)
        , e10(p_e10)
        , e11(p_e11)
        {}
 
    const CoordinateXY* getCoordinate() const {
        return &nodePt;
    }
 
    bool isExterior(bool isInteriorOnRight) const;
 
};
 
} // namespace geos.operation.valid
} // namespace geos.operation
} // namespace geos