Curve.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2024 ISciences, LLC
 *
 * 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/geom/Geometry.h>
 
namespace geos::geom {
    class LineString;
}
 
namespace geos {
namespace geom {
 
class SimpleCurve;
 
class GEOS_DLL Curve : public Geometry {
 
public:
    using Geometry::apply_ro;
    using Geometry::apply_rw;
 
    void apply_ro(GeometryComponentFilter* filter) const override;
 
    void apply_ro(GeometryFilter* filter) const override;
 
    void apply_rw(GeometryComponentFilter* filter) override;
 
    void apply_rw(GeometryFilter* filter) override;

    int
    getBoundaryDimension() const override
    {
        return isClosed() ? Dimension::False : 0;
    }

    Dimension::DimensionType getDimension() const override
    {
        return Dimension::L; // line
    }
 
    virtual const CoordinateXY& getEndCoordinate() const = 0;

    virtual std::unique_ptr<Point> getEndPoint() const = 0;

    virtual std::unique_ptr<Point> getPointN(std::size_t n) const = 0;
 
    virtual const CoordinateXY& getStartCoordinate() const = 0;

    virtual std::unique_ptr<Point> getStartPoint() const = 0;
 
    std::unique_ptr<LineString> getLinearized(const algorithm::CurveToLineParams&) const;
 
    std::unique_ptr<Curve> getCurved(const algorithm::LineToCurveParams&) const;

    virtual bool isClosed() const = 0;

    bool isRing() const;
 
    virtual std::size_t getNumCurves() const = 0;
 
    virtual const SimpleCurve* getCurveN(std::size_t) const = 0;
 
    std::unique_ptr<Curve> clone() const;
 
    std::unique_ptr<Curve> reverse() const;
 
protected:
    Curve(const GeometryFactory& factory) : Geometry(&factory) {}
 
    Curve* getCurvedImpl(const algorithm::LineToCurveParams&) const override = 0;
};
 
}
}