#include <Edge.h>

Inheritance diagram for geos::geomgraph::Edge:

Public Member Functions
void	testInvariant () const

	Edge (geom::CoordinateSequence *newPts, const Label &newLabel)
	Takes ownership of CoordinateSequence.

	Edge (geom::CoordinateSequence *newPts)
	Takes ownership of CoordinateSequence.

size_t	getNumPoints () const

const geom::CoordinateSequence *	getCoordinates () const

const geom::Coordinate &	getCoordinate (std::size_t i) const

const geom::Coordinate &	getCoordinate () const

const Depth &	getDepth () const

int	getDepthDelta () const
	The depthDelta is the change in depth as an edge is crossed from R to L.

void	setDepthDelta (int newDepthDelta)

size_t	getMaximumSegmentIndex () const

EdgeIntersectionList &	getEdgeIntersectionList ()

const EdgeIntersectionList &	getEdgeIntersectionList () const

index::MonotoneChainEdge *	getMonotoneChainEdge ()
	Return this Edge's index::MonotoneChainEdge, ownership is retained by this object.

bool	isClosed () const

bool	isCollapsed () const
	An Edge is collapsed if it is an Area edge and it consists of two segments which are equal and opposite (eg a zero-width V).

Edge *	getCollapsedEdge ()

void	setIsolated (bool newIsIsolated)

bool	isIsolated () const override

void	addIntersections (algorithm::LineIntersector *li, std::size_t segmentIndex, std::size_t geomIndex)
	Adds EdgeIntersections 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 EdgeIntersection for intersection intIndex.

void	computeIM (geom::IntersectionMatrix &im) override
	Update the IM with the contribution for this component.

bool	isPointwiseEqual (const Edge *e) const
	return true if the coordinate sequences of the Edges are identical

std::string	print () const

std::string	printReverse () const

bool	equals (const Edge &e) const

bool	equals (const Edge *e) const

const geom::Envelope *	getEnvelope ()

Public Member Functions inherited from geos::geomgraph::GraphComponent
	GraphComponent (const Label &newLabel)

Label &	getLabel ()

const Label &	getLabel () const

void	setLabel (const Label &newLabel)

void	setInResult (bool p_isInResult)

bool	isInResult () const

void	setCovered (bool isCovered)

bool	isCovered () const

bool	isCoveredSet () const

bool	isVisited () const

void	setVisited (bool p_isVisited)

void	updateIM (geom::IntersectionMatrix &im)

Static Public Member Functions
static void	updateIM (const Label &lbl, geom::IntersectionMatrix &im)

Public Attributes
std::unique_ptr< geom::CoordinateSequence >	pts
	Externally-set, owned by Edge. FIXME: refuse ownership.

EdgeIntersectionList	eiList

Friends
std::ostream &	operator<< (std::ostream &os, const Edge &el)

Additional Inherited Members
Protected Attributes inherited from geos::geomgraph::GraphComponent
Label	label

Detailed Description

The edge component of a geometry graph

Member Function Documentation

◆ addIntersection()

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

Add an EdgeIntersection 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

◆ computeIM()

void geos::geomgraph::Edge::computeIM ( geom::IntersectionMatrix & im )

inlineoverridevirtual

Update the IM with the contribution for this component.

A component only contributes if it has a labelling for both parent geometries

Implements geos::geomgraph::GraphComponent.

◆ equals()

bool geos::geomgraph::Edge::equals ( const Edge & e ) const

equals is defined to be:

e1 equals e2 iff the coordinates of e1 are the same or the reverse of the coordinates in e2

◆ getDepthDelta()

int geos::geomgraph::Edge::getDepthDelta ( ) const

inline

The depthDelta is the change in depth as an edge is crossed from R to L.

Returns: the change in depth as the edge is crossed from R to L

◆ isIsolated()

bool geos::geomgraph::Edge::isIsolated ( ) const

inlineoverridevirtual

Implements geos::geomgraph::GraphComponent.

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

geomgraph/Edge.h

Public Member Functions

Static Public Member Functions

Public Attributes

Friends