TaggedLineString.h
/**********************************************************************
*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2006 Refractions Research Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************
*
* Last port: simplify/TaggedLineString.java rev. 1.2 (JTS-1.7.1)
*
**********************************************************************
*
* NOTES: This class can be optimized to work with vector<Coordinate*>
* rather then with CoordinateSequence. Also, LineSegment should
* be replaced with a class not copying Coordinates.
*
**********************************************************************/
#pragma once
#include <geos/export.h>
#include <vector>
#include <memory>
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
// Forward declarations
namespace geos {
namespace geom {
class Coordinate;
class CoordinateSequence;
class Geometry;
class LineString;
class LinearRing;
}
namespace simplify {
class TaggedLineSegment;
}
}
namespace geos {
namespace simplify { // geos::simplify
class GEOS_DLL TaggedLineString {
using Coordinate = geos::geom::Coordinate;
using CoordinateSequence = geos::geom::CoordinateSequence;
public:
typedef std::vector<Coordinate> CoordVect;
typedef std::unique_ptr<CoordVect> CoordVectPtr;
typedef CoordinateSequence CoordSeq;
typedef std::unique_ptr<CoordinateSequence> CoordSeqPtr;
TaggedLineString(const geom::LineString* nParentLine,
std::size_t minimumSize,
bool bIsRing);
~TaggedLineString();
std::size_t getMinimumSize() const;
bool isRing() const;
const geom::LineString* getParent() const;
const CoordSeq* getParentCoordinates() const;
CoordSeqPtr getResultCoordinates() const;
const Coordinate& getCoordinate(std::size_t i) const;
std::size_t size() const;
const Coordinate& getComponentPoint() const;
std::size_t getResultSize() const;
TaggedLineSegment* getSegment(std::size_t i);
const TaggedLineSegment* getSegment(std::size_t i) const;
std::vector<TaggedLineSegment*>& getSegments();
const std::vector<TaggedLineSegment*>& getSegments() const;
const std::vector<TaggedLineSegment*>& getResultSegments() const;
void addToResult(std::unique_ptr<TaggedLineSegment> seg);
const TaggedLineSegment* removeRingEndpoint();
std::unique_ptr<geom::Geometry> asLineString() const;
std::unique_ptr<geom::Geometry> asLinearRing() const;
private:
const geom::LineString* parentLine;
// TaggedLineSegments owned by this object
std::vector<TaggedLineSegment*> segs;
// TaggedLineSegments owned by this object
std::vector<TaggedLineSegment*> resultSegs;
std::size_t minimumSize;
bool m_isRing;
void init();
static std::unique_ptr<CoordinateSequence> extractCoordinates(
const std::vector<TaggedLineSegment*>& segs);
// Copying is turned off
TaggedLineString(const TaggedLineString&);
TaggedLineString& operator= (const TaggedLineString&);
};
} // namespace geos::simplify
} // namespace geos
#ifdef _MSC_VER
#pragma warning(pop)
#endif
geos::geom::CoordinateSequence
The internal representation of a list of coordinates inside a Geometry.
Definition CoordinateSequence.h:56
geos::geom::Coordinate
Coordinate is the lightweight class used to store coordinates.
Definition Coordinate.h:217
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition Geometry.h:196
geos::geom::LineString
Definition LineString.h:66
geos::geom::LinearRing
Models an OGC SFS LinearRing. A LinearRing is a LineString which is both closed and simple.
Definition LinearRing.h:54
geos::simplify::TaggedLineSegment
A geom::LineSegment which is tagged with its location in a geom::Geometry.
Definition TaggedLineSegment.h:53
geos::geom
Definition Angle.h:26
geos::simplify
Classes which implement algorithms for simplifying or generalizing geometries.
Definition Corner.h:26
geos
Basic namespace for all GEOS functionalities.
Definition geos.h:38