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

#include <NodedSegmentString.h>

Inheritance diagram for geos::noding::NodedSegmentString:

Public Member Functions
std::unique_ptr< geom::CoordinateSequence >	getNodedCoordinates ()

bool	hasNodes () const

	NodedSegmentString (geom::CoordinateSequence newPts, bool constructZ, bool constructM, const void newContext)
	Creates a new segment string from a list of vertices.

	NodedSegmentString (SegmentString *ss, bool constructZ, bool constructM)

SegmentNodeList &	getNodeList ()

const SegmentNodeList &	getNodeList () const

std::unique_ptr< geom::CoordinateSequence >	releaseCoordinates ()

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

void	addIntersections (algorithm::LineIntersector *li, std::size_t segmentIndex, std::size_t geomIndex)
	Add `SegmentNode`s for one or both intersections found for a segment of an edge to the edge intersection list.

void	addIntersection (algorithm::LineIntersector *li, std::size_t segmentIndex, std::size_t geomIndex, std::size_t intIndex)
	Add an SegmentNode for intersection intIndex.

template<typename CoordType >
void	addIntersection (const CoordType &intPt, std::size_t segmentIndex)
	Add an SegmentNode for intersection intIndex.

Public Member Functions inherited from geos::noding::NodableSegmentString
	NodableSegmentString (const void newContext, geom::CoordinateSequence newSeq)

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

Static Public Member Functions
template<class II >
static void	getNodedSubstrings (II from, II too_far, SegmentString::NonConstVect *resultEdgelist)

template<class C >
static void	getNodedSubstrings (C segStrings, SegmentString::NonConstVect resultEdgelist)

static void	getNodedSubstrings (const SegmentString::NonConstVect &segStrings, SegmentString::NonConstVect *resultEdgeList)

static SegmentString::NonConstVect *	getNodedSubstrings (const SegmentString::NonConstVect &segStrings)
	Returns allocated object.

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

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

typedef std::vector< SegmentString * >	NonConstVect

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

◆ NodedSegmentString()

geos::noding::NodedSegmentString::NodedSegmentString	(	geom::CoordinateSequence *	newPts,
		bool	constructZ,
		bool	constructM,
		const void *	newContext
	)

inline

Creates a new segment string from a list of vertices.

Parameters

newPts	CoordinateSequence representing the string, ownership transferred.
constructZ	should newly-constructed coordinates store Z values?
constructM	should newly-constructed coordinates store M values?
newContext	the user-defined data of this segment string (may be null)

Member Function Documentation

◆ addIntersection() [1/2]

void geos::noding::NodedSegmentString::addIntersection	(	algorithm::LineIntersector *	li,
		std::size_t	segmentIndex,
		std::size_t	geomIndex,
		std::size_t	intIndex
	)

inline

Add an SegmentNode for intersection intIndex.

An intersection that falls exactly on a vertex of the SegmentString is normalized to use the higher of the two possible segmentIndexes

References geos::algorithm::LineIntersector::getIntersection().

◆ addIntersection() [2/2]

template<typename CoordType >

void geos::noding::NodedSegmentString::addIntersection	(	const CoordType &	intPt,
		std::size_t	segmentIndex
	)

inline

Add an SegmentNode for intersection intIndex.

An intersection that falls exactly on a vertex of the edge is normalized to use the higher of the two possible segmentIndexes

◆ print()

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

overridevirtual

Reimplemented from geos::noding::SegmentString.

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

NodedSegmentString.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NodedSegmentString()

Member Function Documentation

◆ addIntersection() [1/2]

◆ addIntersection() [2/2]

◆ print()