161 lines
4.2 KiB
C++
161 lines
4.2 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) 2011 Sandro Santilli <strk@kbt.io>
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* Copyright (C) 2001-2002 Vivid Solutions Inc.
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* Copyright (C) 2005 2006 Refractions Research Inc.
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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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*
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* Last port: geom/MultiLineString.java r320 (JTS-1.12)
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*
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**********************************************************************/
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#pragma once
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#include <geos/export.h>
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#include <geos/geom/GeometryCollection.h> // for inheritance
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#include <geos/geom/Dimension.h>
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#include <geos/geom/LineString.h>
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#include <geos/geom/MultiPoint.h>
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#include <string>
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#include <vector>
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// Forward declarations
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namespace geos {
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namespace geom { // geos::geom
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class Coordinate;
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}
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}
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namespace geos {
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namespace geom { // geos::geom
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable:4250) // T1 inherits T2 via dominance
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#endif
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/// Models a collection of [LineStrings](@ref geom::LineString).
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class GEOS_DLL MultiLineString: public GeometryCollection {
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public:
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friend class GeometryFactory;
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~MultiLineString() override = default;
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/// Returns line dimension (1)
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Dimension::DimensionType getDimension() const override;
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bool hasDimension(Dimension::DimensionType d) const override {
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return d == Dimension::L;
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}
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bool isDimensionStrict(Dimension::DimensionType d) const override {
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return d == Dimension::L;
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}
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/**
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* \brief
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* Returns Dimension::False if all [LineStrings](@ref geom::LineString) 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 a (possibly empty) [MultiPoint](@ref geom::MultiPoint)
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std::unique_ptr<Geometry> getBoundary() const override;
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const LineString* 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 isClosed() const;
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std::unique_ptr<MultiLineString> clone() const
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{
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return std::unique_ptr<MultiLineString>(cloneImpl());
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};
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/**
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* Creates a MultiLineString in the reverse
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* order to this object.
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* Both the order of the component LineStrings
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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 MultiLineString in the reverse order
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*/
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std::unique_ptr<MultiLineString> reverse() const { return std::unique_ptr<MultiLineString>(reverseImpl()); }
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protected:
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/**
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* \brief Constructs a MultiLineString.
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*
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* @param newLines The [LineStrings](@ref geom::LineString) for this
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* MultiLineString, or `null`
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* or an empty array to create the empty geometry.
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* Elements may be empty LineString,
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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 MultiLineString.
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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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MultiLineString(std::vector<std::unique_ptr<LineString>> && newLines,
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const GeometryFactory& newFactory);
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MultiLineString(std::vector<std::unique_ptr<Geometry>> && newLines,
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const GeometryFactory& newFactory);
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MultiLineString(const MultiLineString& mp)
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: GeometryCollection(mp)
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{};
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MultiLineString* cloneImpl() const override { return new MultiLineString(*this); }
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MultiLineString* 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_MULTILINESTRING;
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};
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bool hasCurvedComponents() const override
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{
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return false;
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}
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};
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} // namespace geos::geom
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} // namespace geos
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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