#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.

virtual size_t	getNumPoints () const

virtual const geom::CoordinateSequence *	getCoordinates () const

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

virtual const geom::Coordinate &	getCoordinate () const

virtual Depth &	getDepth ()

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

virtual void	setDepthDelta (int newDepthDelta)

virtual size_t	getMaximumSegmentIndex () const

virtual EdgeIntersectionList &	getEdgeIntersectionList ()

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

virtual bool	isClosed () const

virtual 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).

virtual Edge *	getCollapsedEdge ()

virtual void	setIsolated (bool newIsIsolated)

bool	isIsolated () const override

virtual 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.

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

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

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

virtual std::string	print () const

virtual std::string	printReverse () const

virtual bool	equals (const Edge &e) const

virtual bool	equals (const Edge *e) const

virtual 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)

virtual void	setInResult (bool p_isInResult)

virtual bool	isInResult () const

virtual void	setCovered (bool isCovered)

virtual bool	isCovered () const

virtual bool	isCoveredSet () const

virtual bool	isVisited () const

virtual void	setVisited (bool p_isVisited)

virtual bool	isIsolated () const =0

virtual 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
virtual void	computeIM (geom::IntersectionMatrix &im)=0

Protected Attributes inherited from geos::geomgraph::GraphComponent
Label	label

Detailed Description

The edge component of a geometry graph

Member Function Documentation

◆ addIntersection()

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

virtual

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()

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

virtual

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()

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

inlinevirtual

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