Class Edge

Represents an undirected edge of a {PlanarGraph}. An undirected edge in fact simply acts as a central point of reference for two opposite DirectedEdges. Usually a client using a PlanarGraph will subclass Edge to add its own application-specific data and methods.

Inheritance

object

GraphComponent

Edge

LineMergeEdge

PolygonizeEdge

Inherited Members

GraphComponent.SetVisited(IEnumerator, bool)

GraphComponent.SetMarked(IEnumerator, bool)

GraphComponent.GetComponentWithVisitedState(IEnumerator, bool)

GraphComponent.IsVisited

GraphComponent.Visited

GraphComponent.IsMarked

GraphComponent.Marked

GraphComponent.Data

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetTopologySuite.Planargraph

Assembly: NetTopologySuite.dll

Syntax

public class Edge : GraphComponent

Constructors

Edge()

Constructs an Edge whose DirectedEdges are not yet set. Be sure to call SetDirectedEdges(DirectedEdge, DirectedEdge).

Declaration

public Edge()

Edge(DirectedEdge, DirectedEdge)

Constructs an Edge initialized with the given DirectedEdges, and for each DirectedEdge: sets the Edge, sets the symmetric DirectedEdge, and adds this Edge to its from-Node.

Declaration

public Edge(DirectedEdge de0, DirectedEdge de1)

Parameters

Type	Name	Description
DirectedEdge	de0
DirectedEdge	de1

Fields

dirEdge

The two DirectedEdges associated with this Edge.

Declaration

protected DirectedEdge[] dirEdge

Field Value

Type	Description
DirectedEdge[]

Properties

IsRemoved

Tests whether this component has been removed from its containing graph.

Declaration

public override bool IsRemoved { get; }

Property Value

Type	Description
bool

Overrides

GraphComponent.IsRemoved

Methods

GetDirEdge(Node)

Returns the DirectedEdge that starts from the given node, or null if the node is not one of the two nodes associated with this Edge.

Declaration

public DirectedEdge GetDirEdge(Node fromNode)

Parameters

Type	Name	Description
Node	fromNode

Returns

Type	Description
DirectedEdge

GetDirEdge(int)

Returns one of the DirectedEdges associated with this Edge.

Declaration

public DirectedEdge GetDirEdge(int i)

Parameters

Type	Name	Description
int	i	0 or 1.

Returns

Type	Description
DirectedEdge

GetOppositeNode(Node)

If node is one of the two nodes associated with this Edge, returns the other node; otherwise returns null.

Declaration

public Node GetOppositeNode(Node node)

Parameters

Type	Name	Description
Node	node

Returns

Type	Description
Node

SetDirectedEdges(DirectedEdge, DirectedEdge)

Initializes this Edge's two DirectedEdges, and for each DirectedEdge: sets the Edge, sets the symmetric DirectedEdge, and adds this Edge to its from-Node.

Declaration

public void SetDirectedEdges(DirectedEdge de0, DirectedEdge de1)

Parameters

Type	Name	Description
DirectedEdge	de0
DirectedEdge	de1