#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)
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 ()

Protected Member Functions
void	computePoints (DirectedEdge *newStart)
	throw(const TopologyException &)
void	mergeLabel (const Label &deLabel)
void	mergeLabel (const Label &deLabel, int 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< 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

◆ 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.

References holes.

◆ getEdges()

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

Returns the list of DirectedEdges that make up this EdgeRing

◆ mergeLabel()

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

geom::Polygon * geos::geomgraph::EdgeRing::toPolygon ( const geom::GeometryFactory * geometryFactory )

Return a Polygon copying coordinates from this EdgeRing and its holes. Caller must remember to delete the result

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

geomgraph/EdgeRing.h

Public Member Functions

Protected Member Functions

Protected Attributes