116 lines
2.8 KiB
C
116 lines
2.8 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 Curve;
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/// A Surface is an abstract class representing a Geometry of dimension 2.
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/// It is extended by Polygon, which represents a Surface with linear edges,
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/// and by CurvePolygon, whose edges may include circular arcs.
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class GEOS_DLL Surface : public Geometry {
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private:
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protected:
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using Geometry::Geometry;
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public:
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void apply_ro(CoordinateFilter* filter) const override;
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void apply_ro(CoordinateSequenceFilter& filter) const override;
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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(CoordinateSequenceFilter& filter) 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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void apply_rw(const CoordinateFilter* filter) override;
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std::unique_ptr<Geometry> convexHull() const override;
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bool
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equalsExact(const Geometry* other, double tolerance = 0.0) const override;
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bool
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equalsIdentical(const Geometry* other) const override;
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int
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getBoundaryDimension() const override
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{
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return 1;
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}
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const CoordinateXY* getCoordinate() const override;
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uint8_t getCoordinateDimension() const override;
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Dimension::DimensionType
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getDimension() const override
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{
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return Dimension::A; // area
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}
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const Envelope* getEnvelopeInternal() const override;
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/// Returns the exterior ring (shell)
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virtual const Curve* getExteriorRing() const = 0;
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/// Get nth interior ring (hole)
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virtual const Curve* getInteriorRingN(std::size_t n) const = 0;
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/// Returns the perimeter of this Surface
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double getLength() const override;
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/// Returns number of interior rings (holes)
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virtual size_t getNumInteriorRing() const = 0;
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size_t getNumPoints() const override;
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bool hasM() const override;
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bool hasZ() const override;
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bool isEmpty() const override;
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protected:
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int
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compareToSameClass(const Geometry* g) const override;
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// Helper method allowing PolygonImpl to use GeometryFactory without cirular imports
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static std::unique_ptr<Geometry> createEmptyRing(const GeometryFactory&);
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virtual Curve* getExteriorRing() = 0;
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virtual Curve* getInteriorRingN(std::size_t i) = 0;
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void geometryChangedAction() override {}
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};
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}
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}
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