Interface to a read-only graph. More...

Inheritance diagram for Satsuma.IGraph:

Public Member Functions
int	ArcCount (ArcFilter filter=ArcFilter.All)
	Returns the total number of arcs satisfying a given filter. More...

int	ArcCount (Node u, ArcFilter filter=ArcFilter.All)
	Returns the number of arcs adjacent to a specific node satisfying a given filter. More...

int	ArcCount (Node u, Node v, ArcFilter filter=ArcFilter.All)
	Returns the number of arcs adjacent to two nodes satisfying a given filter. More...

IEnumerable< Arc >	Arcs (ArcFilter filter=ArcFilter.All)

IEnumerable< Arc >	Arcs (Node u, ArcFilter filter=ArcFilter.All)

IEnumerable< Arc >	Arcs (Node u, Node v, ArcFilter filter=ArcFilter.All)

bool	HasArc (Arc arc)
	Returns whether the given arc is contained in the graph. More...

bool	HasNode (Node node)
	Returns whether the given node is contained in the graph. More...

bool	IsEdge (Arc arc)
	Returns whether the arc is undirected (`true`) or directed (`false`). More...

int	NodeCount ()
	Returns the total number of nodes in O(1) time. More...

IEnumerable< Node >	Nodes ()
	Returns all nodes of the graph. More...

Node	U (Arc arc)
	Returns the first node of an arc. Directed arcs point from U to V. More...

Node	V (Arc arc)
	Returns the second node of an arc. Directed arcs point from U to V. More...

Detailed Description

Interface to a read-only graph.

Definition at line 234 of file Graph.cs.

Member Function Documentation

int Satsuma.IGraph.ArcCount ( ArcFilter filter = ArcFilter.All )

Returns the total number of arcs satisfying a given filter.

Parameters

filter Detailed description: see Arcs(ArcFilter).

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.CompleteGraph, Satsuma.Subgraph, Satsuma.ContractedGraph, Satsuma.Matching, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

int Satsuma.IGraph.ArcCount	(	Node	u,
		ArcFilter	filter = `ArcFilter.All`
	)

Returns the number of arcs adjacent to a specific node satisfying a given filter.

Parameters

filter Detailed description: see Arcs(Node, ArcFilter).

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.Subgraph, Satsuma.CompleteGraph, Satsuma.ContractedGraph, Satsuma.Matching, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

int Satsuma.IGraph.ArcCount	(	Node	u,
		Node	v,
		ArcFilter	filter = `ArcFilter.All`
	)

Returns the number of arcs adjacent to two nodes satisfying a given filter.

Parameters

filter Detailed description: see Arcs(Node, Node, ArcFilter).

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.CompleteGraph, Satsuma.Subgraph, Satsuma.Matching, Satsuma.ContractedGraph, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

IEnumerable<Arc> Satsuma.IGraph.Arcs ( ArcFilter filter = ArcFilter.All )

Returns all arcs of the graph satisfying a given filter.

Parameters

filter

Cannot be ArcType.Forward/ArcType.Backward.

If ArcFilter.All, then all arcs are returned.
If ArcFilter.Edge, only the edges (undirected arcs) are returned.

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.Subgraph, Satsuma.CompleteGraph, Satsuma.ContractedGraph, Satsuma.Matching, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

IEnumerable<Arc> Satsuma.IGraph.Arcs	(	Node	u,
		ArcFilter	filter = `ArcFilter.All`
	)

Returns all arcs adjacent to a specific node satisfying a given filter.

Parameters

filter

If ArcFilter.All, then all arcs are returned.
If ArcFilter.Edge, only the edges (undirected arcs) are returned.
If ArcFilter.Forward, only the arcs exiting u (this includes edges) are returned.
If ArcFilter.Backward, only the arcs entering u (this includes edges) are returned.

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.Subgraph, Satsuma.CompleteGraph, Satsuma.Matching, Satsuma.ContractedGraph, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

IEnumerable<Arc> Satsuma.IGraph.Arcs	(	Node	u,
		Node	v,
		ArcFilter	filter = `ArcFilter.All`
	)

Returns all arcs adjacent to two nodes satisfying a given filter.

Parameters

filter

If ArcFilter.All, then all arcs are returned.
If ArcFilter.Edge, only the edges (undirected arcs) are returned.
If ArcFilter.Forward, only the arcs from u to v (this includes edges) are returned.
If ArcFilter.Backward, only the arcs from v to u (this includes edges) are returned.

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.Subgraph, Satsuma.CompleteGraph, Satsuma.ContractedGraph, Satsuma.Matching, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

bool Satsuma.IGraph.HasArc ( Arc arc )

Returns whether the given arc is contained in the graph.

Must return the same value as Arcs().Contains in all implementations, but faster if possible.

Note: true may be returned for arcs coming from another graph as well, if those arcs encapsulate an identifier which is valid for this graph, too.

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.CompleteGraph, Satsuma.Subgraph, Satsuma.Matching, Satsuma.ContractedGraph, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.

bool Satsuma.IGraph.HasNode ( Node node )

Returns whether the given node is contained in the graph.

Must return the same value as Nodes().Contains in all implementations, but faster if possible.

Note: true may be returned for nodes coming from another graph as well, if those nodes encapsulate an identifier which is valid for this graph, too.

Implemented in Satsuma.PathGraph, Satsuma.Supergraph, Satsuma.Path, Satsuma.CompleteBipartiteGraph, Satsuma.CompleteGraph, Satsuma.Subgraph, Satsuma.Matching, Satsuma.ContractedGraph, Satsuma.RedirectedGraph, Satsuma.ReverseGraph, and Satsuma.UndirectedGraph.