Represents a list of contiguous line segments, and supports noding the segments. More...

#include <BasicSegmentString.h>

Inheritance diagram for geos::noding::BasicSegmentString:

Public Member Functions
	BasicSegmentString (geom::CoordinateSequence newPts, const void newContext)
	Construct a BasicSegmentString.

std::ostream &	print (std::ostream &os) const override

int	getSegmentOctant (std::size_t index) const
	Gets the octant of the segment starting at vertex index.

Public Member Functions inherited from geos::noding::SegmentString
	SegmentString (const void newContext, geom::CoordinateSequence newSeq)
	Construct a SegmentString.

const void *	getData () const
	Gets the user-defined data for this segment string.

void	setData (const void *data)
	Sets the user-defined data for this segment string.

std::size_t	size () const

template<typename CoordType = geom::Coordinate>
const CoordType &	getCoordinate (std::size_t i) const

const geom::CoordinateSequence *	getCoordinates () const
	Return a pointer to the CoordinateSequence associated with this SegmentString.

geom::CoordinateSequence *	getCoordinates ()

int	getSegmentOctant (std::size_t index) const
	Gets the octant of the segment starting at vertex index.

const geom::CoordinateXY &	nextInRing (std::size_t index) const

const geom::CoordinateXY &	prevInRing (std::size_t index) const

bool	isClosed () const

Additional Inherited Members
Public Types inherited from geos::noding::SegmentString
typedef std::vector< const SegmentString * >	ConstVect

typedef std::vector< SegmentString * >	NonConstVect

Static Public Member Functions inherited from geos::noding::SegmentString
static int	getSegmentOctant (const SegmentString &ss, std::size_t index)

Protected Attributes inherited from geos::noding::SegmentString
geom::CoordinateSequence *	seq

Detailed Description

Represents a list of contiguous line segments, and supports noding the segments.

The line segments are represented by an array of Coordinates. Intended to optimize the noding of contiguous segments by reducing the number of allocated objects. SegmentStrings can carry a context object, which is useful for preserving topological or parentage information. All noded substrings are initialized with the same context object.

Constructor & Destructor Documentation

◆ BasicSegmentString()

geos::noding::BasicSegmentString::BasicSegmentString	(	geom::CoordinateSequence *	newPts,
		const void *	newContext
	)

inline

Construct a BasicSegmentString.

Parameters

newPts	CoordinateSequence representing the string, externally owned
newContext	the context associated to this SegmentString

Member Function Documentation

◆ getSegmentOctant()

int geos::noding::BasicSegmentString::getSegmentOctant ( std::size_t index ) const

inline

Gets the octant of the segment starting at vertex index.

Parameters

index the index of the vertex starting the segment. Must not be the last index in the vertex list

Returns: the octant of the segment at the vertex

◆ print()

std::ostream & geos::noding::BasicSegmentString::print ( std::ostream & os ) const

overridevirtual

Reimplemented from geos::noding::SegmentString.

The documentation for this class was generated from the following file:

BasicSegmentString.h