Represents expansion graph of each biconnected component of a given digraph, i.e., each vertex v with in- and outdegree greater than 1 is expanded into two vertices x and y connected by an edge x->y such that all incoming edges are moved from v to x and all outgoing edges from v to y. More...

#include <ogdf/upward/ExpansionGraph.h>

Inheritance diagram for ogdf::ExpansionGraph:

Public Member Functions
	ExpansionGraph (const Graph &G)

const SList< int > &	adjacentComponents (node v) const

const SListPure< edge > &	component (int i) const

int	componentNumber (edge e) const

node	copy (node vG) const

void	init (const Graph &G)

void	init (int i)

int	numberOfBCs () const

edge	original (edge e) const

node	original (node v) const

node	representative (node v) const

void	setComponentNumber (edge e, int i)

void	setOriginal (node vCopy, node vOriginal)

Public Member Functions inherited from ogdf::Graph
	Graph ()
	Constructs an empty graph.

	Graph (const Graph &G)
	Constructs a graph that is a copy of `G`.

virtual	~Graph ()
	Destructor.

bool	empty () const
	Returns true iff the graph is empty, i.e., contains no nodes.

int	numberOfNodes () const
	Returns the number of nodes in the graph.

int	numberOfEdges () const
	Returns the number of edges in the graph.

int	maxNodeIndex () const
	Returns the largest used node index.

int	maxEdgeIndex () const
	Returns the largest used edge index.

int	maxAdjEntryIndex () const
	Returns the largest used adjEntry index.

int	nodeArrayTableSize () const
	Returns the table size of node arrays associated with this graph.

int	edgeArrayTableSize () const
	Returns the table size of edge arrays associated with this graph.

int	adjEntryArrayTableSize () const
	Returns the table size of adjEntry arrays associated with this graph.

node	firstNode () const
	Returns the first node in the list of all nodes.

node	lastNode () const
	Returns the last node in the list of all nodes.

edge	firstEdge () const
	Returns the first edge in the list of all edges.

edge	lastEdge () const
	Returns the last edge in the list of all edges.

node	chooseNode (std::function< bool(node)> includeNode=[](node) { return true;}, bool isFastTest=true) const
	Returns a random node.

edge	chooseEdge (std::function< bool(edge)> includeEdge=[](edge) { return true;}, bool isFastTest=true) const
	Returns a random edge.

template<class CONTAINER >
void	allNodes (CONTAINER &nodeContainer) const
	Returns a container with all nodes of the graph.

template<class CONTAINER >
void	allEdges (CONTAINER &edgeContainer) const
	Returns a container with all edges of the graph.

node	newNode ()
	Creates a new node and returns it.

node	newNode (int index)
	Creates a new node with predefined index and returns it.

edge	newEdge (node v, node w)
	Creates a new edge (`v`,`w`) and returns it.

edge	newEdge (node v, node w, int index)
	Creates a new edge (`v`,`w`) with predefined index and returns it.

edge	newEdge (adjEntry adjSrc, adjEntry adjTgt, Direction dir=Direction::after)
	Creates a new edge at predefined positions in the adjacency lists.

edge	newEdge (node v, adjEntry adjTgt)
	Creates a new edge at predefined positions in the adjacency lists.

edge	newEdge (adjEntry adjSrc, node w)
	Creates a new edge at predefined positions in the adjacency lists.

virtual void	delNode (node v)
	Removes node `v` and all incident edges from the graph.

virtual void	delEdge (edge e)
	Removes edge `e` from the graph.

virtual void	clear ()
	Removes all nodes and all edges from the graph.

void	insert (const Graph &G, NodeArray< node > &nodeMap)
	Inserts Graph `G` as a subgraph into this Graph.

void	insert (const Graph &G)
	Inserts Graph `G` as a subgraph into this Graph.

virtual edge	split (edge e)
	Splits edge `e` into two edges introducing a new node.

void	unsplit (node u)
	Undoes a split operation.

virtual void	unsplit (edge eIn, edge eOut)
	Undoes a split operation.

node	splitNode (adjEntry adjStartLeft, adjEntry adjStartRight)
	Splits a node while preserving the order of adjacency entries.

node	contract (edge e, bool keepSelfLoops=false)
	Contracts edge `e` while preserving the order of adjacency entries.

void	move (edge e, adjEntry adjSrc, Direction dirSrc, adjEntry adjTgt, Direction dirTgt)
	Moves edge `e` to a different adjacency list.

void	moveTarget (edge e, node w)
	Moves the target node of edge `e` to node `w`.

void	moveTarget (edge e, adjEntry adjTgt, Direction dir)
	Moves the target node of edge `e` to a specific position in an adjacency list.

void	moveSource (edge e, node w)
	Moves the source node of edge `e` to node `w`.

void	moveSource (edge e, adjEntry adjSrc, Direction dir)
	Moves the source node of edge `e` to a specific position in an adjacency list.

edge	searchEdge (node v, node w, bool directed=false) const
	Searches and returns an edge connecting nodes `v` and `w` in time O( min(deg(`v` ), deg(`w` ))).

void	reverseEdge (edge e)
	Reverses the edge `e`, i.e., exchanges source and target node.

void	reverseAllEdges ()
	Reverses all edges in the graph.

template<class NODELIST >
void	collapse (NODELIST &nodesToCollapse)
	Collapses all nodes in the list `nodesToCollapse` to the first node in the list.

template<class ADJ_ENTRY_LIST >
void	sort (node v, const ADJ_ENTRY_LIST &newOrder)
	Sorts the adjacency list of node `v` according to `newOrder`.

void	reverseAdjEdges (node v)
	Reverses the adjacency list of `v`.

void	moveAdj (adjEntry adjMove, Direction dir, adjEntry adjPos)
	Moves adjacency entry `adjMove` before or after `adjPos`.

void	moveAdjAfter (adjEntry adjMove, adjEntry adjAfter)
	Moves adjacency entry `adjMove` after `adjAfter`.

void	moveAdjBefore (adjEntry adjMove, adjEntry adjBefore)
	Moves adjacency entry `adjMove` before `adjBefore`.

void	reverseAdjEdges ()
	Reverses all adjacency lists.

void	swapAdjEdges (adjEntry adj1, adjEntry adj2)
	Exchanges two entries in an adjacency list.

int	genus () const
	Returns the genus of the graph's embedding.

bool	representsCombEmbedding () const
	Returns true iff the graph represents a combinatorial embedding.

ListIterator< NodeArrayBase * >	registerArray (NodeArrayBase *pNodeArray) const
	Registers a node array.

ListIterator< EdgeArrayBase * >	registerArray (EdgeArrayBase *pEdgeArray) const
	Registers an edge array.

ListIterator< AdjEntryArrayBase * >	registerArray (AdjEntryArrayBase *pAdjArray) const
	Registers an adjEntry array.

ListIterator< GraphObserver * >	registerStructure (GraphObserver *pStructure) const
	Registers a graph observer (e.g. a ClusterGraph).

void	unregisterArray (ListIterator< NodeArrayBase * > it) const
	Unregisters a node array.

void	unregisterArray (ListIterator< EdgeArrayBase * > it) const
	Unregisters an edge array.

void	unregisterArray (ListIterator< AdjEntryArrayBase * > it) const
	Unregisters an adjEntry array.

void	unregisterStructure (ListIterator< GraphObserver * > it) const
	Unregisters a graph observer.

template<class ArrayBase >
void	moveRegisterArray (ListIterator< ArrayBase * > it, ArrayBase *pArray) const
	Move the registration `it` of an graph element array to `pArray` (used with move semantics for graph element arrays).

void	resetEdgeIdCount (int maxId)
	Resets the edge id count to `maxId`.

Graph &	operator= (const Graph &G)
	Assignment operator.

Private Member Functions
node	getCopy (node vOrig)

Private Attributes
NodeArray< SList< int > >	m_adjComponents

EdgeArray< int >	m_compNum

Array< SListPure< edge > >	m_component

EdgeArray< edge >	m_eOrig

NodeArray< node >	m_vCopy

NodeArray< node >	m_vOrig

NodeArray< node >	m_vRep

Additional Inherited Members
Public Types inherited from ogdf::Graph
enum class	EdgeType { association = 0 , generalization = 1 , dependency = 2 }
	The type of edges (only used in derived classes). More...

enum class	NodeType { vertex = 0 , dummy = 1 , generalizationMerger = 2 , generalizationExpander = 3 , highDegreeExpander = 4 , lowDegreeExpander = 5 , associationClass = 6 }
	The type of nodes. More...

using	node_iterator = internal::GraphIterator< node >
	Provides a bidirectional iterator to a node in a graph.

using	edge_iterator = internal::GraphIterator< edge >
	Provides a bidirectional iterator to an edge in a graph.

using	adjEntry_iterator = internal::GraphIterator< adjEntry >
	Provides a bidirectional iterator to an entry in an adjacency list.

Public Attributes inherited from ogdf::Graph
internal::GraphObjectContainer< NodeElement >	nodes
	The container containing all node objects.

internal::GraphObjectContainer< EdgeElement >	edges
	The container containing all edge objects.

Protected Member Functions inherited from ogdf::Graph
void	assign (const Graph &G, NodeArray< node > &mapNode, EdgeArray< edge > &mapEdge)

void	construct (const Graph &G, NodeArray< node > &mapNode, EdgeArray< edge > &mapEdge)

void	constructInitByActiveNodes (const List< node > &nodeList, const NodeArray< bool > &activeNodes, NodeArray< node > &mapNode, EdgeArray< edge > &mapEdge)

void	constructInitByCC (const CCsInfo &info, int cc, NodeArray< node > &mapNode, EdgeArray< edge > &mapEdge)
	Constructs a copy of connected component `cc` in `info`.

void	constructInitByNodes (const Graph &G, const List< node > &nodeList, NodeArray< node > &mapNode, EdgeArray< edge > &mapEdge)
	Constructs a copy of the subgraph of `G` induced by `nodeList`.

Detailed Description

Represents expansion graph of each biconnected component of a given digraph, i.e., each vertex v with in- and outdegree greater than 1 is expanded into two vertices x and y connected by an edge x->y such that all incoming edges are moved from v to x and all outgoing edges from v to y.

Definition at line 49 of file ExpansionGraph.h.

Constructor & Destructor Documentation

◆ ExpansionGraph()

ogdf::ExpansionGraph::ExpansionGraph ( const Graph & G )

Member Function Documentation

◆ adjacentComponents()

const SList< int > & ogdf::ExpansionGraph::adjacentComponents ( node v ) const

inline

Definition at line 66 of file ExpansionGraph.h.

◆ component()

const SListPure< edge > & ogdf::ExpansionGraph::component ( int i ) const

inline

Definition at line 63 of file ExpansionGraph.h.

◆ componentNumber()

int ogdf::ExpansionGraph::componentNumber ( edge e ) const

inline

Definition at line 58 of file ExpansionGraph.h.

◆ copy()

node ogdf::ExpansionGraph::copy ( node vG ) const

inline

Definition at line 77 of file ExpansionGraph.h.

◆ getCopy()

node ogdf::ExpansionGraph::getCopy ( node vOrig )

inlineprivate

Definition at line 98 of file ExpansionGraph.h.

◆ init() [1/2]

void ogdf::ExpansionGraph::init ( const Graph & G )

◆ init() [2/2]

void ogdf::ExpansionGraph::init ( int i )

◆ numberOfBCs()

int ogdf::ExpansionGraph::numberOfBCs ( ) const

inline

Definition at line 55 of file ExpansionGraph.h.

◆ original() [1/2]

edge ogdf::ExpansionGraph::original ( edge e ) const

inline

Definition at line 81 of file ExpansionGraph.h.

◆ original() [2/2]

node ogdf::ExpansionGraph::original ( node v ) const

inline

Definition at line 70 of file ExpansionGraph.h.

◆ representative()

node ogdf::ExpansionGraph::representative ( node v ) const

inline

Definition at line 72 of file ExpansionGraph.h.

◆ setComponentNumber()

void ogdf::ExpansionGraph::setComponentNumber	(	edge	e,
		int	i
	)

inline

Definition at line 60 of file ExpansionGraph.h.

◆ setOriginal()

void ogdf::ExpansionGraph::setOriginal	(	node	vCopy,
		node	vOriginal
	)

inline

Definition at line 84 of file ExpansionGraph.h.

Member Data Documentation

◆ m_adjComponents

NodeArray<SList<int> > ogdf::ExpansionGraph::m_adjComponents

private

Definition at line 109 of file ExpansionGraph.h.

◆ m_compNum

EdgeArray<int> ogdf::ExpansionGraph::m_compNum

private

Definition at line 107 of file ExpansionGraph.h.

◆ m_component

Array<SListPure<edge> > ogdf::ExpansionGraph::m_component

private

Definition at line 108 of file ExpansionGraph.h.

◆ m_eOrig

EdgeArray<edge> ogdf::ExpansionGraph::m_eOrig

private

Definition at line 113 of file ExpansionGraph.h.

◆ m_vCopy

NodeArray<node> ogdf::ExpansionGraph::m_vCopy

private

Definition at line 110 of file ExpansionGraph.h.

◆ m_vOrig

NodeArray<node> ogdf::ExpansionGraph::m_vOrig

private

Definition at line 111 of file ExpansionGraph.h.

◆ m_vRep

NodeArray<node> ogdf::ExpansionGraph::m_vRep

private

Definition at line 112 of file ExpansionGraph.h.

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

include/ogdf/upward/ExpansionGraph.h

OpenGraph DrawingFramework

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ExpansionGraph()

Member Function Documentation

◆ adjacentComponents()

◆ component()

◆ componentNumber()

◆ copy()

◆ getCopy()

◆ init() [1/2]

◆ init() [2/2]

◆ numberOfBCs()

◆ original() [1/2]

◆ original() [2/2]

◆ representative()

◆ setComponentNumber()

◆ setOriginal()

Member Data Documentation

◆ m_adjComponents

◆ m_compNum

◆ m_component

◆ m_eOrig

◆ m_vCopy

◆ m_vOrig

◆ m_vRep

Open
Graph Drawing
Framework