127 lines
3.3 KiB
C++
127 lines
3.3 KiB
C++
/**********************************************************************
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2024 ISciences, LLC
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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**********************************************************************/
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#pragma once
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#include <geos/geom/Curve.h>
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#include <geos/geom/GeometryCollection.h>
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namespace geos {
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namespace geom {
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class GEOS_DLL MultiCurve : public GeometryCollection {
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friend class GeometryFactory;
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public:
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~MultiCurve() override = default;
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std::unique_ptr<MultiCurve> clone() const
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{
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return std::unique_ptr<MultiCurve>(cloneImpl());
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};
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/// Returns a (possibly empty) [MultiPoint](@ref geom::MultiPoint)
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std::unique_ptr<Geometry> getBoundary() const override;
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/**
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* \brief
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* Returns Dimension::False if all [Curves](@ref geom::Curve) in the collection
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* are closed, 0 otherwise.
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*/
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int getBoundaryDimension() const override;
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/// Returns line dimension (1)
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Dimension::DimensionType getDimension() const override;
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const Curve* getGeometryN(std::size_t n) const override;
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std::string getGeometryType() const override;
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GeometryTypeId getGeometryTypeId() const override;
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bool hasDimension(Dimension::DimensionType d) const override
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{
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return d == Dimension::L;
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}
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/// Returns true if the MultiCurve is not empty, and every included
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/// Curve is also closed.
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bool isClosed() const;
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bool isDimensionStrict(Dimension::DimensionType d) const override
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{
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return d == Dimension::L;
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}
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/**
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* Creates a MultiCurve in the reverse
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* order to this object.
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* Both the order of the component Curves
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* and the order of their coordinate sequences
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* are reversed.
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*
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* @return a MultiCurve in the reverse order
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*/
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std::unique_ptr<MultiCurve> reverse() const
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{
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return std::unique_ptr<MultiCurve>(reverseImpl());
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}
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protected:
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/**
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* \brief Constructs a MultiCurve.
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*
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* @param newLines The [Curves](@ref geom::Curve) for this
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* MultiCurve, or `null`
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* or an empty array to create the empty geometry.
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* Elements may be empty Curve,
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* but not `null`s.
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*
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* @param newFactory The GeometryFactory used to create this geometry.
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* Caller must keep the factory alive for the life-time
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* of the constructed MultiCurve.
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*
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* @note Constructed object will take ownership of
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* the vector and its elements.
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*
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*/
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MultiCurve(std::vector<std::unique_ptr<Curve>>&& newLines,
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const GeometryFactory& newFactory);
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MultiCurve(std::vector<std::unique_ptr<Geometry>>&& newLines,
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const GeometryFactory& newFactory);
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MultiCurve(const MultiCurve& mp)
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: GeometryCollection(mp)
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{}
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MultiCurve* cloneImpl() const override
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{
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return new MultiCurve(*this);
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}
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MultiCurve* reverseImpl() const override;
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int
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getSortIndex() const override
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{
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return SORTINDEX_MULTICURVE;
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};
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};
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}
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}
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