72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
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/**********************************************************************
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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/Geometry.h>
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namespace geos {
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namespace geom {
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class SimpleCurve;
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class GEOS_DLL Curve : public Geometry {
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public:
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using Geometry::apply_ro;
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using Geometry::apply_rw;
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void apply_ro(GeometryComponentFilter* filter) const override;
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void apply_ro(GeometryFilter* filter) const override;
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void apply_rw(GeometryComponentFilter* filter) override;
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void apply_rw(GeometryFilter* filter) override;
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/**
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* \brief
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* Returns Dimension::False for a closed Curve,
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* 0 otherwise (Curve boundary is a MultiPoint)
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*/
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int
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getBoundaryDimension() const override
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{
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return isClosed() ? Dimension::False : 0;
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}
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/// Returns line dimension (1)
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Dimension::DimensionType getDimension() const override
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{
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return Dimension::L; // line
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}
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/// Returns true if the first and last coordinate in the Curve are the same
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virtual bool isClosed() const = 0;
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/// Returns true if the curve is closed and simple
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bool isRing() const;
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virtual std::size_t getNumCurves() const = 0;
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virtual const SimpleCurve* getCurveN(std::size_t) const = 0;
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protected:
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Curve(const GeometryFactory& factory) : Geometry(&factory) {}
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};
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}
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}
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