Creates a reduced graph by removing leaves, self-loops, and reducing chains. More...
#include <ogdf/graphalg/GraphReduction.h>
Public Member Functions | |
GraphReduction (const Graph &G) | |
virtual | ~GraphReduction () |
const Graph & | original () const |
const List< edge > & | original (edge e) const |
node | original (node v) const |
edge | reduction (edge e) const |
node | reduction (node v) const |
Public Member Functions inherited from ogdf::Graph | |
Graph () | |
Constructs an empty graph. More... | |
Graph (const Graph ©) | |
Constructs a graph that is a copy of G . More... | |
Graph (Graph &&move)=delete | |
virtual | ~Graph () |
Destructor. More... | |
Graph & | operator= (const Graph ©) |
Overwrites this graph to be a copy of G . More... | |
Graph & | operator= (Graph &&move)=delete |
bool | empty () const |
Returns true iff the graph is empty, i.e., contains no nodes. More... | |
int | numberOfNodes () const |
Returns the number of nodes in the graph. More... | |
int | numberOfEdges () const |
Returns the number of edges in the graph. More... | |
int | maxNodeIndex () const |
Returns the largest used node index. More... | |
int | maxEdgeIndex () const |
Returns the largest used edge index. More... | |
int | maxAdjEntryIndex () const |
Returns the largest used adjEntry index. More... | |
node | firstNode () const |
Returns the first node in the list of all nodes. More... | |
node | lastNode () const |
Returns the last node in the list of all nodes. More... | |
edge | firstEdge () const |
Returns the first edge in the list of all edges. More... | |
edge | lastEdge () const |
Returns the last edge in the list of all edges. More... | |
node | chooseNode (std::function< bool(node)> includeNode=[](node) { return true;}, bool isFastTest=true) const |
Returns a random node. More... | |
edge | chooseEdge (std::function< bool(edge)> includeEdge=[](edge) { return true;}, bool isFastTest=true) const |
Returns a random edge. More... | |
template<class CONTAINER > | |
void | allNodes (CONTAINER &nodeContainer) const |
Returns a container with all nodes of the graph. More... | |
template<class CONTAINER > | |
void | allEdges (CONTAINER &edgeContainer) const |
Returns a container with all edges of the graph. More... | |
node | newNode (int index=-1) |
Creates a new node and returns it. More... | |
edge | newEdge (node v, node w, int index=-1) |
Creates a new edge (v ,w ) and returns it. More... | |
edge | newEdge (node v, adjEntry adjTgt, int index=-1) |
Creates a new edge at predefined positions in the adjacency lists. More... | |
edge | newEdge (adjEntry adjSrc, node w, int index=-1) |
Creates a new edge at predefined positions in the adjacency lists. More... | |
edge | newEdge (adjEntry adjSrc, adjEntry adjTgt, Direction dir=Direction::after, int index=-1) |
Creates a new edge at predefined positions in the adjacency lists. More... | |
template<typename S , typename T > | |
edge | newEdge (S src, Direction dirSrc, T tgt, Direction dirTgt, int index=-1) |
Creates a new edge at predefined positions in the adjacency lists. More... | |
virtual void | delNode (node v) |
Removes node v and all incident edges from the graph. More... | |
virtual void | delEdge (edge e) |
Removes edge e from the graph. More... | |
virtual void | clear () |
Removes all nodes and all edges from the graph. More... | |
void | restoreAllEdges () |
Restore all hidden edges and invalidate all HiddenEdgeSets. More... | |
virtual edge | split (edge e) |
Splits edge e into two edges introducing a new node. More... | |
void | unsplit (node u) |
Undoes a split operation. More... | |
virtual void | unsplit (edge eIn, edge eOut) |
Undoes a split operation. More... | |
node | splitNode (adjEntry adjStartLeft, adjEntry adjStartRight) |
Splits a node while preserving the order of adjacency entries. More... | |
node | contract (edge e, bool keepSelfLoops=false) |
Contracts edge e while preserving the order of adjacency entries. More... | |
void | move (edge e, adjEntry adjSrc, Direction dirSrc, adjEntry adjTgt, Direction dirTgt) |
Moves edge e to a different adjacency list. More... | |
void | moveTarget (edge e, node w) |
Moves the target node of edge e to node w . More... | |
void | moveTarget (edge e, adjEntry adjTgt, Direction dir) |
Moves the target node of edge e to a specific position in an adjacency list. More... | |
void | moveSource (edge e, node w) |
Moves the source node of edge e to node w . More... | |
void | moveSource (edge e, adjEntry adjSrc, Direction dir) |
Moves the source node of edge e to a specific position in an adjacency list. More... | |
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 ))). More... | |
void | reverseEdge (edge e) |
Reverses the edge e , i.e., exchanges source and target node. More... | |
void | reverseAllEdges () |
Reverses all edges in the graph. More... | |
template<class NODELIST > | |
void | collapse (NODELIST &nodesToCollapse) |
Collapses all nodes in the list nodesToCollapse to the first node in the list. More... | |
template<class ADJ_ENTRY_LIST > | |
void | sort (node v, const ADJ_ENTRY_LIST &newOrder) |
Sorts the adjacency list of node v according to newOrder . More... | |
template<class IT > | |
void | sort (node v, IT begin, IT end) |
Sorts the adjacency list of node v according to the range denoted by two iterators. More... | |
void | reverseAdjEdges (node v) |
Reverses the adjacency list of v . More... | |
void | moveAdj (adjEntry adjMove, Direction dir, adjEntry adjPos) |
Moves adjacency entry adjMove before or after adjPos . More... | |
void | moveAdjAfter (adjEntry adjMove, adjEntry adjAfter) |
Moves adjacency entry adjMove after adjAfter . More... | |
void | moveAdjBefore (adjEntry adjMove, adjEntry adjBefore) |
Moves adjacency entry adjMove before adjBefore . More... | |
void | reverseAdjEdges () |
Reverses all adjacency lists. More... | |
void | swapAdjEdges (adjEntry adj1, adjEntry adj2) |
Exchanges two entries in an adjacency list. More... | |
int | genus () const |
Returns the genus of the graph's embedding. More... | |
bool | representsCombEmbedding () const |
Returns true iff the graph represents a combinatorial embedding. More... | |
void | consistencyCheck () const |
Asserts that this graph is consistent. More... | |
internal::GraphNodeRegistry & | nodeRegistry () |
Returns a reference to the registry of node arrays associated with this graph. More... | |
const internal::GraphNodeRegistry & | nodeRegistry () const |
Returns a const reference to the registry of node arrays associated with this graph. More... | |
operator const internal::GraphNodeRegistry & () const | |
internal::GraphEdgeRegistry & | edgeRegistry () |
Returns a reference to the registry of edge arrays associated with this graph. More... | |
const internal::GraphEdgeRegistry & | edgeRegistry () const |
Returns a const reference to the registry of edge arrays associated with this graph. More... | |
operator const internal::GraphEdgeRegistry & () const | |
internal::GraphAdjRegistry & | adjEntryRegistry () |
Returns a reference to the registry of adjEntry arrays associated with this graph. More... | |
const internal::GraphAdjRegistry & | adjEntryRegistry () const |
Returns a const reference to the registry of adjEntry arrays associated with this graph. More... | |
operator const internal::GraphAdjRegistry & () const | |
void | resetEdgeIdCount (int maxId) |
Resets the edge id count to maxId . More... | |
void | resetNodeIdCount (int maxId) |
template<OGDF_NODE_ITER NI, OGDF_EDGE_ITER EI, bool copyEmbedding = true, bool copyIDs = false, bool notifyObservers = true> | |
std::pair< int, int > | insert (const NI &nodesBegin, const NI &nodesEnd, const EI &edgesBegin, const EI &edgesEnd, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given subgraph into this graph. More... | |
template<OGDF_NODE_ITER NI, OGDF_EDGE_FILTER EF, bool copyIDs = false, bool notifyObservers = true> | |
std::pair< int, int > | insert (const NI &nodesBegin, const NI &nodesEnd, const EF &edgeFilter, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given subgraph into this graph. More... | |
template<OGDF_NODE_LIST NL> | |
std::pair< int, int > | insert (const NL &nodeList, const EdgeSet< true > &edgeSet, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given subgraph into this graph. More... | |
template<OGDF_NODE_LIST NL> | |
std::pair< int, int > | insert (const NL &nodeList, const EdgeSet< false > &edgeSet, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given subgraph into this graph. More... | |
template<OGDF_NODE_LIST NL, OGDF_EDGE_LIST EL> | |
std::pair< int, int > | insert (const NL &nodeList, const EL &edgeList, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given subgraph into this graph. More... | |
std::pair< int, int > | insert (const CCsInfo &info, int cc, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given connected component cc into this graph. More... | |
std::pair< int, int > | insert (const Graph &G, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap) |
Inserts a copy of a given Graph G into this graph. More... | |
std::pair< int, int > | insert (const Graph &G) |
Inserts a copy of a given Graph G into this graph. More... | |
Public Member Functions inherited from ogdf::Observable< GraphObserver, Graph > | |
Observable ()=default | |
Observable (const Observable ©)=delete | |
If you want to copy a subclass of Observable, call the default Observable() constructor. More... | |
Observable (Observable &&move)=delete | |
If you want to move a subclass of Observable, call the default Observable() constructor. More... | |
virtual | ~Observable () |
Observable & | operator= (const Observable ©)=delete |
Observable & | operator= (Observable &&move)=delete |
Protected Member Functions | |
GraphReduction () | |
Protected Member Functions inherited from ogdf::Graph | |
virtual void * | preInsert (bool copyEmbedding, bool copyIDs, bool notifyObservers, bool edgeFilter, NodeArray< node > &nodeMap, EdgeArray< edge > &edgeMap, int *newNodes, int *newEdges) |
Callback notifying subclasses that some graph is about to be insert() -ed. More... | |
virtual void | nodeInserted (void *userData, node original, node copy) |
Callback notifying subclasses that insert() copied a node. More... | |
virtual void | edgeInserted (void *userData, edge original, edge copy) |
Callback notifying subclasses that insert() copied an edge. More... | |
virtual void | postInsert (void *userData, int newNodes, int newEdges) |
Callback notifying subclasses that an insert() call has finished. More... | |
Protected Member Functions inherited from ogdf::Observable< GraphObserver, Graph > | |
void | clearObservers () |
const ListPure< GraphObserver * > & | getObservers () const |
Protected Attributes | |
EdgeArray< List< edge > > | m_eOrig |
EdgeArray< edge > | m_eReduction |
const Graph * | m_pGraph |
NodeArray< node > | m_vOrig |
NodeArray< node > | m_vReduction |
Additional Inherited Members | |
Public Types inherited from ogdf::Graph | |
enum | EdgeType { EdgeType::association = 0, EdgeType::generalization = 1, EdgeType::dependency = 2 } |
The type of edges (only used in derived classes). More... | |
enum | NodeType { NodeType::vertex = 0, NodeType::dummy = 1, NodeType::generalizationMerger = 2, NodeType::generalizationExpander = 3, NodeType::highDegreeExpander = 4, NodeType::lowDegreeExpander = 5, NodeType::associationClass = 6 } |
The type of nodes. More... | |
using | node_iterator = internal::GraphIterator< node > |
Provides a bidirectional iterator to a node in a graph. More... | |
using | edge_iterator = internal::GraphIterator< edge > |
Provides a bidirectional iterator to an edge in a graph. More... | |
using | adjEntry_iterator = internal::GraphIterator< adjEntry > |
Provides a bidirectional iterator to an entry in an adjacency list. More... | |
Public Attributes inherited from ogdf::Graph | |
internal::GraphObjectContainer< NodeElement > | nodes |
The container containing all node objects. More... | |
internal::GraphObjectContainer< EdgeElement > | edges |
The container containing all edge objects. More... | |
Creates a reduced graph by removing leaves, self-loops, and reducing chains.
GraphReduction is read-only !!!
Definition at line 48 of file GraphReduction.h.
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Definition at line 57 of file GraphReduction.h.
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Definition at line 63 of file GraphReduction.h.
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Definition at line 66 of file GraphReduction.h.
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Definition at line 50 of file GraphReduction.h.
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