geos::noding::NodedSegmentString Class Reference

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 (const std::shared_ptr< const 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::ostream &	print (std::ostream &os) const override
void	addIntersections (algorithm::LineIntersector *li, std::size_t segmentIndex, std::size_t geomIndex)
	Add SegmentNodes 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, const std::shared_ptr< const geom::CoordinateSequence > &newSeq)
Public Member Functions inherited from geos::noding::SegmentString
	SegmentString (const void *newContext, const std::shared_ptr< const geom::CoordinateSequence > &newSeq)
	Construct a SegmentString.
std::size_t	size () const
std::size_t	getSize () const override
template<typename CoordType = geom::Coordinate>
const CoordType &	getCoordinate (std::size_t i) const
double	getLength () const override
const std::shared_ptr< const geom::CoordinateSequence > &	getCoordinates () const override
	Return a pointer to the CoordinateSequence associated with this SegmentString.
void	setCoordinates (const std::shared_ptr< const geom::CoordinateSequence > &newSeq)
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
Public Member Functions inherited from geos::noding::PathString
	PathString (const void *p_context=nullptr)
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.

Static Public Member Functions
template<class II>
static void	getNodedSubstrings (II from, II too_far, std::vector< std::unique_ptr< SegmentString > > &resultEdgelist)
template<class C>
static void	getNodedSubstrings (const C &segStrings, std::vector< std::unique_ptr< SegmentString > > &resultEdgelist)
static void	getNodedSubstrings (const SegmentString::NonConstVect &segStrings, std::vector< std::unique_ptr< SegmentString > > &resultEdgeList)
static std::vector< std::unique_ptr< SegmentString > >	getNodedSubstrings (const std::vector< SegmentString * > &segStrings)
Static Public Member Functions inherited from geos::noding::SegmentString
static int	getSegmentOctant (const SegmentString &ss, std::size_t index)
static std::vector< SegmentString * >	toRawPointerVector (const std::vector< std::unique_ptr< SegmentString > > &segStrings)
static std::vector< SegmentString * >	toRawPointerVector (const std::vector< std::unique_ptr< PathString > > &segStrings)
Static Public Member Functions inherited from geos::noding::PathString
static std::vector< PathString * >	toRawPointerVector (const std::vector< std::unique_ptr< PathString > > &segStrings)

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
std::shared_ptr< const 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 ( const std::shared_ptr< const 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 addIntersection(), and geos::algorithm::LineIntersector::getIntersection().

Referenced by addIntersection(), and addIntersections().

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.

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

• NodedSegmentString.h