#include <EdgeRing.h>

Inheritance diagram for geos::geomgraph::EdgeRing:

Public Member Functions
	EdgeRing (DirectedEdge newStart, const geom::GeometryFactory newGeometryFactory)

bool	isIsolated ()

bool	isHole ()

geom::LinearRing *	getLinearRing ()

Label &	getLabel ()

bool	isShell ()

EdgeRing *	getShell ()

void	setShell (EdgeRing *newShell)

void	addHole (EdgeRing *edgeRing)

std::unique_ptr< geom::Polygon >	toPolygon (const geom::GeometryFactory *geometryFactory)

void	computeRing ()

virtual DirectedEdge *	getNext (DirectedEdge *de)=0

virtual void	setEdgeRing (DirectedEdge de, EdgeRing er)=0

std::vector< DirectedEdge * > &	getEdges ()

int	getMaxNodeDegree ()

void	setInResult ()

bool	containsPoint (const geom::Coordinate &p)

void	testInvariant () const

Protected Member Functions
void	computePoints (DirectedEdge *newStart)

void	mergeLabel (const Label &deLabel)

void	mergeLabel (const Label &deLabel, uint8_t geomIndex)
	Merge the RHS label from a DirectedEdge into the label for this EdgeRing.

void	addPoints (Edge *edge, bool isForward, bool isFirstEdge)

Protected Attributes
DirectedEdge *	startDe

const geom::GeometryFactory *	geometryFactory

std::vector< std::unique_ptr< EdgeRing > >	holes
	a list of EdgeRings which are holes in this EdgeRing

Friends
std::ostream &	operator<< (std::ostream &os, const EdgeRing &er)

Detailed Description

EdgeRing

Member Function Documentation

◆ computePoints()

void geos::geomgraph::EdgeRing::computePoints ( DirectedEdge * newStart )

protected

Exceptions

util::TopologyException

◆ computeRing()

void geos::geomgraph::EdgeRing::computeRing ( )

Compute a LinearRing from the point list previously collected. Test if the ring is a hole (i.e. if it is CCW) and set the hole flag accordingly.

◆ containsPoint()

bool geos::geomgraph::EdgeRing::containsPoint ( const geom::Coordinate & p )

This method will use the computed ring. It will also check any holes, if they have been assigned.

◆ getEdges()

std::vector< DirectedEdge * > & geos::geomgraph::EdgeRing::getEdges ( )

Returns the list of DirectedEdges that make up this EdgeRing

◆ getLinearRing()

geom::LinearRing * geos::geomgraph::EdgeRing::getLinearRing ( )

Return a pointer to the LinearRing owned by this object. Make a copy if you need it beyond this objects's lifetime.

◆ mergeLabel()

void geos::geomgraph::EdgeRing::mergeLabel	(	const Label &	deLabel,
		uint8_t	geomIndex
	)

protected

Merge the RHS label from a DirectedEdge into the label for this EdgeRing.

The DirectedEdge label may be null. This is acceptable - it results from a node which is NOT an intersection node between the Geometries (e.g. the end node of a LinearRing). In this case the DirectedEdge label does not contribute any information to the overall labelling, and is simply skipped.

◆ toPolygon()

std::unique_ptr< geom::Polygon > geos::geomgraph::EdgeRing::toPolygon ( const geom::GeometryFactory * geometryFactory )

Return a Polygon copying coordinates from this EdgeRing and its holes.

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

geomgraph/EdgeRing.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends