CompoundCurve.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/LineString.h>
#include <geos/geom/SimpleCurve.h>
#include <geos/util.h>
#include <vector>
 
namespace geos {
namespace geom {
 
class GEOS_DLL CompoundCurve : public Curve {
    friend class GeometryFactory;
 
public:
    using Curve::apply_ro;
    using Curve::apply_rw;
 
    void apply_ro(CoordinateFilter* filter) const override;
 
    void apply_ro(CoordinateSequenceFilter& filter) const override;
 
    void apply_rw(CoordinateSequenceFilter& filter) override;
 
    void apply_rw(const CoordinateFilter* filter) override;
 
    int compareToSameClass(const Geometry* geom) const override;
 
    std::unique_ptr<CompoundCurve> clone() const;
 
    bool equalsExact(const Geometry* other, double tolerance = 0)
    const override;
 
    bool equalsIdentical(const Geometry* other) const override;
 
    std::unique_ptr<Geometry> getBoundary() const override;
 
    const CoordinateXY* getCoordinate() const override;
 
    uint8_t getCoordinateDimension() const override;
 
    std::unique_ptr<CoordinateSequence> getCoordinates() const override;

    const SimpleCurve* getCurveN(std::size_t) const override;
 
    const CoordinateXY& getEndCoordinate() const override;
 
    std::unique_ptr<Point> getEndPoint() const override;
 
    const Envelope* getEnvelopeInternal() const override
    {
        return &envelope;
    }
 
    std::string getGeometryType() const override;
 
    GeometryTypeId getGeometryTypeId() const override;
 
    double getLength() const override;

    std::size_t getNumCurves() const override;
 
    std::size_t getNumPoints() const override;
 
    std::unique_ptr<Point> getPointN(std::size_t n) const override;
 
    const CoordinateXY& getStartCoordinate() const override;
 
    std::unique_ptr<Point> getStartPoint() const override;
 
    bool hasCurvedComponents() const override;
 
    bool hasM() const override;
 
    bool hasZ() const override;
 
    bool isClosed() const override;
 
    bool isEmpty() const override;
 
    void normalize() override;
 
    std::unique_ptr<CompoundCurve> reverse() const;
 
    void validateConstruction() const;
 
protected:
    CompoundCurve(std::vector<std::unique_ptr<SimpleCurve>>&&,
                  const GeometryFactory&);
 
    CompoundCurve(const CompoundCurve&);
 
    CompoundCurve& operator=(const CompoundCurve&);
 
    CompoundCurve* cloneImpl() const override;
 
    Envelope computeEnvelopeInternal() const;
 
    void geometryChangedAction() override
    {
        envelope = computeEnvelopeInternal();
    }
 
    LineString* getLinearizedImpl(const algorithm::CurveToLineParams&) const override;
 
    CompoundCurve* getCurvedImpl(const algorithm::LineToCurveParams&) const override { return cloneImpl(); }
 
    int getSortIndex() const override
    {
        return SORTINDEX_COMPOUNDCURVE;
    }
 
    CompoundCurve* reverseImpl() const override;
 
private:
    void normalizeClosed();
 
    void reverseInPlace();
 
    std::vector<std::unique_ptr<SimpleCurve>> curves;
    Envelope envelope;
};
 
}
}