Class Node

A node in a PlanarGraph is a location where 0 or more Edges meet. A node is connected to each of its incident Edges via an outgoing DirectedEdge. Some clients using a PlanarGraph may want to subclass Node to add their own application-specific data and methods.

Inheritance
object
GraphComponent
Node
Inherited Members
Namespace: NetTopologySuite.Planargraph
Assembly: NetTopologySuite.dll
Syntax
public class Node : GraphComponent

Constructors

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Node(Coordinate)

Constructs a Node with the given location.

Declaration
public Node(Coordinate pt)
Parameters
Type Name Description
Coordinate pt
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Node(Coordinate, DirectedEdgeStar)

Constructs a Node with the given location and collection of outgoing DirectedEdges.

Declaration
public Node(Coordinate pt, DirectedEdgeStar deStar)
Parameters
Type Name Description
Coordinate pt
DirectedEdgeStar deStar

Fields

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deStar

The collection of DirectedEdges that leave this Node.

Declaration
protected DirectedEdgeStar deStar
Field Value
Type Description
DirectedEdgeStar
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pt

The location of this Node.

Declaration
protected Coordinate pt
Field Value
Type Description
Coordinate

Properties

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Coordinate

Returns the location of this Node.

Declaration
public Coordinate Coordinate { get; }
Property Value
Type Description
Coordinate
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Degree

Returns the number of edges around this Node.

Declaration
public int Degree { get; }
Property Value
Type Description
int
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IsRemoved

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

Declaration
public override bool IsRemoved { get; }
Property Value
Type Description
bool
Overrides
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OutEdges

Returns the collection of DirectedEdges that leave this Node.

Declaration
public DirectedEdgeStar OutEdges { get; }
Property Value
Type Description
DirectedEdgeStar

Methods

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AddOutEdge(DirectedEdge)

Adds an outgoing DirectedEdge to this Node.

Declaration
public void AddOutEdge(DirectedEdge de)
Parameters
Type Name Description
DirectedEdge de
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GetEdgesBetween(Node, Node)

Returns all Edges that connect the two nodes (which are assumed to be different).

Declaration
public static IList<DirectedEdge> GetEdgesBetween(Node node0, Node node1)
Parameters
Type Name Description
Node node0
Node node1
Returns
Type Description
IList<DirectedEdge>
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GetIndex(Edge)

Returns the zero-based index of the given Edge, after sorting in ascending order by angle with the positive x-axis.

Declaration
public int GetIndex(Edge edge)
Parameters
Type Name Description
Edge edge
Returns
Type Description
int
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Remove(DirectedEdge)

Removes a DirectedEdge incident on this node. Does not change the state of the directed edge.

Declaration
public void Remove(DirectedEdge de)
Parameters
Type Name Description
DirectedEdge de
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ToString()

Declaration
public override string ToString()
Returns
Type Description
string
Overrides