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121 lines
2.9 KiB
C++
121 lines
2.9 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) 2005-2006 Refractions Research Inc.
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* Copyright (C) 2001-2002 Vivid Solutions 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: noding/SegmentString.java r430 (JTS-1.12+)
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*
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**********************************************************************/
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#ifndef GEOS_NODING_SEGMENTSTRING_H
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#define GEOS_NODING_SEGMENTSTRING_H
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#include <geos/export.h>
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#include <geos/noding/SegmentNodeList.h>
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#include <vector>
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// Forward declarations
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namespace geos {
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namespace algorithm {
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class LineIntersector;
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}
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}
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namespace geos {
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namespace noding { // geos.noding
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/** \brief
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* An interface for classes which represent a sequence of contiguous
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* line segments.
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*
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* SegmentStrings can carry a context object, which is useful
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* for preserving topological or parentage information.
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*/
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class GEOS_DLL SegmentString {
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public:
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typedef std::vector<const SegmentString*> ConstVect;
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typedef std::vector<SegmentString*> NonConstVect;
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friend std::ostream& operator<< (std::ostream& os,
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const SegmentString& ss);
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/// \brief Construct a SegmentString.
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///
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/// @param newContext the context associated to this SegmentString
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///
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SegmentString(const void* newContext)
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:
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context(newContext)
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{}
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virtual
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~SegmentString() {}
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/** \brief
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* Gets the user-defined data for this segment string.
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*
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* @return the user-defined data
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*/
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const void*
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getData() const
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{
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return context;
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}
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/** \brief
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* Sets the user-defined data for this segment string.
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*
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* @param data an Object containing user-defined data
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*/
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void
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setData(const void* data)
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{
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context = data;
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}
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virtual size_t size() const = 0;
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virtual const geom::Coordinate& getCoordinate(size_t i) const = 0;
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/// \brief
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/// Return a pointer to the CoordinateSequence associated
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/// with this SegmentString.
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///
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/// @note The CoordinateSequence is owned by this SegmentString!
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///
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virtual geom::CoordinateSequence* getCoordinates() const = 0;
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virtual bool isClosed() const = 0;
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virtual std::ostream& print(std::ostream& os) const;
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private:
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const void* context;
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// Declare type as noncopyable
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SegmentString(const SegmentString& other) = delete;
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SegmentString& operator=(const SegmentString& rhs) = delete;
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};
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std::ostream& operator<< (std::ostream& os, const SegmentString& ss);
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} // namespace geos.noding
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} // namespace geos
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#endif
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