LineString.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@kbt.io>
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 * Copyright (C) 2005 2006 Refractions Research Inc.
 *
 * 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: geom/LineString.java r320 (JTS-1.12)
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
#include <geos/geom/Geometry.h> // for inheritance
#include <geos/geom/CoordinateSequence.h> // for proper use of unique_ptr<>
#include <geos/geom/Envelope.h> // for proper use of unique_ptr<>
#include <geos/geom/Dimension.h> // for Dimension::DimensionType
 
#include <string>
#include <vector>
#include <memory> // for unique_ptr
 
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
namespace geos {
namespace geom {
class Coordinate;
class CoordinateSequenceFilter;
}
}
 
namespace geos {
namespace geom { // geos::geom
 
class GEOS_DLL LineString: public Geometry {
 
public:
 
    friend class GeometryFactory;
 
    typedef std::vector<const LineString*> ConstVect;
 
    ~LineString() override;
 
    std::unique_ptr<LineString> clone() const
    {
        return std::unique_ptr<LineString>(cloneImpl());
    }
 
    std::unique_ptr<CoordinateSequence> getCoordinates() const override;
 
    const CoordinateSequence* getCoordinatesRO() const;
 
    virtual const Coordinate& getCoordinateN(std::size_t n) const;
 
    std::unique_ptr<CoordinateSequence> releaseCoordinates();
 
    Dimension::DimensionType getDimension() const override;
 
    int getBoundaryDimension() const override;
 
    uint8_t getCoordinateDimension() const override;
 
    bool hasM() const override;
 
    bool hasZ() const override;
 
    std::unique_ptr<Geometry> getBoundary() const override;
 
    bool isEmpty() const override;
 
    std::size_t getNumPoints() const override;
 
    virtual std::unique_ptr<Point> getPointN(std::size_t n) const;
 
    virtual std::unique_ptr<Point> getStartPoint() const;
 
    virtual std::unique_ptr<Point> getEndPoint() const;
 
    virtual bool isClosed() const;
 
    virtual bool isRing() const;
 
    std::string getGeometryType() const override;
 
    GeometryTypeId getGeometryTypeId() const override;
 
    virtual bool isCoordinate(Coordinate& pt) const;
 
    bool equalsExact(const Geometry* other, double tolerance = 0)
    const override;
 
    bool equalsIdentical(const Geometry* other) const override;
 
    void apply_rw(const CoordinateFilter* filter) override;
 
    void apply_ro(CoordinateFilter* filter) const override;
 
    void apply_rw(GeometryFilter* filter) override;
 
    void apply_ro(GeometryFilter* filter) const override;
 
    void apply_rw(GeometryComponentFilter* filter) override;
 
    void apply_ro(GeometryComponentFilter* filter) const override;
 
    void apply_rw(CoordinateSequenceFilter& filter) override;
 
    void apply_ro(CoordinateSequenceFilter& filter) const override;
 
    void normalize() override;
 
    //was protected
    int compareToSameClass(const Geometry* ls) const override;
 
    const CoordinateXY* getCoordinate() const override;
 
    double getLength() const override;
 
    std::unique_ptr<LineString> reverse() const { return std::unique_ptr<LineString>(reverseImpl()); }
 
    const Envelope* getEnvelopeInternal() const override {
        return &envelope;
    }
 
protected:
 
    LineString(const LineString& ls);
 
    LineString(CoordinateSequence::Ptr && pts,
               const GeometryFactory& newFactory);
 
    LineString* cloneImpl() const override { return new LineString(*this); }
 
    LineString* reverseImpl() const override;
 
    Envelope computeEnvelopeInternal() const;
 
    CoordinateSequence::Ptr points;
 
    mutable Envelope envelope;
 
    int
    getSortIndex() const override
    {
        return SORTINDEX_LINESTRING;
    };
 
    void geometryChangedAction() override {
        envelope = computeEnvelopeInternal();
    }
 
private:
 
    void validateConstruction();
    void normalizeClosed();
 
 
};
 
struct GEOS_DLL  LineStringLT {
    bool
    operator()(const LineString* ls1, const LineString* ls2) const
    {
        return ls1->compareTo(ls2) < 0;
    }
};
 
} // namespace geos::geom
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif