public void EdgeSubdivision(IEdgeInterface edge)
{
// Variable
IVertexInterface vertex1 = graph.GetVertexByUserName(edge.GetVertex1().GetUserName());
IVertexInterface vertex2 = graph.GetVertexByUserName(edge.GetVertex2().GetUserName());
// Component
if (componentsList != null)
{
if (countComponents > 1)
{
// Get component which contains the vertex
IGraphInterface myComponentGraph = null;
foreach (IGraphInterface componentGraph in componentsList)
{
if (componentGraph.ExistsUserName(vertex1.GetUserName()))
{
myComponentGraph = componentGraph;
break;
}
}
myComponentGraph.EdgeSubdivision(new Edge(myComponentGraph.GetVertexByUserName(vertex1.GetUserName()), myComponentGraph.GetVertexByUserName(vertex2.GetUserName())));
}
else
{
//componentsList = componentsList;
//countComponents = countComponents;
//isConnected = isConnected;
}
}
// Properties
//isCyclic = isCyclic;
//isEulerian = isEulerian;
// IntegralInvariants
//circuitRank = circuitRank;
if (girth.HasValue && girth > 2)
{
girth = null;
}
cayleysFormula = null;
// SequencesAndPolynomialsOthers
if (isConnected != null && !(bool)isConnected)
{
spanningTreeBFS = spanningTreeBFS = new List <IEdgeInterface>();
}
else
{
spanningTreeBFS = null;
}
matching = null;
cutVertices = null;
bridges = null;
// DegreeSequence
degreeSequence = null;
maximumVertexDegree = null;
minimumVertexDegree = null;
averageVertexDegree = null;
medianVertexDegree = null;
isDegreeSequenceSorted = false;
isRegular = null;
// Chordal
if (isChordal.HasValue && (bool)isChordal)
{
isChordal = null;
perfectEliminationOrderingList = null;
righNeighborhoodDictionary = null;
}
// GraphClass
graphClass = GraphClass.GraphClass.GraphClassEnum.undefined;
}
public void VertexExpansion(IVertexInterface vertex)
{
// Component
if (componentsList != null)
{
// Need change => copies of component
if (countComponents > 1)
{
// Get component which contains the vertex
IVertexInterface myVertexComponent = null;
IGraphInterface myComponentGraph = null;
foreach (IGraphInterface componentGraph in componentsList)
{
if (componentGraph.ExistsUserName(vertex.GetUserName()))
{
myComponentGraph = componentGraph;
myVertexComponent = myComponentGraph.GetVertexByUserName(vertex.GetUserName());
break;
}
}
myComponentGraph.VertexExpansion(myVertexComponent);
}
//componentsList = componentsList;
//countComponents = countComponents;
//isConnected = isConnected;
}
// Properties
isCyclic = null;
isEulerian = EulerianGraphEnum.undefined;
// IntegralInvariants
circuitRank = null;
girth = null;
cayleysFormula = null;
// SequencesAndPolynomialsOthers
if (isConnected != null && !(bool)isConnected)
{
spanningTreeBFS = spanningTreeBFS = new List <IEdgeInterface>();
}
else
{
spanningTreeBFS = null;
}
matching = null;
cutVertices = null;
bridges = null;
// DegreeSequence
degreeSequence = null;
maximumVertexDegree = null;
minimumVertexDegree = null;
averageVertexDegree = null;
medianVertexDegree = null;
isDegreeSequenceSorted = false;
isRegular = null;
// Chordal
if (isChordal.HasValue && (bool)isChordal)
{
isChordal = null;
perfectEliminationOrderingList = null;
righNeighborhoodDictionary = null;
}
// GraphClass
graphClass = GraphClass.GraphClass.GraphClassEnum.undefined;
}
public void EdgeDelete(IEdgeInterface edge)
{
// Variable
IVertexInterface vertex1 = graph.GetVertexByUserName(edge.GetVertex1().GetUserName());
IVertexInterface vertex2 = graph.GetVertexByUserName(edge.GetVertex2().GetUserName());
// Component
if (componentsList != null)
{
if (countComponents > 1)
{
// Get component which contains the vertex
IGraphInterface myComponentGraph = null;
foreach (IGraphInterface componentGraph in componentsList)
{
if (componentGraph.ExistsUserName(vertex1.GetUserName()))
{
myComponentGraph = componentGraph;
break;
}
}
myComponentGraph.EdgeDelete(new Edge(myComponentGraph.GetVertexByUserName(vertex1.GetUserName()), myComponentGraph.GetVertexByUserName(vertex2.GetUserName())));
componentsList = null;
countComponents = null;
isConnected = null;
}
else
{
if (bridges != null)
{
// The edge is a bridge
if (bridges.Any(e => ((e.GetVertex1().Equals(vertex1) && e.GetVertex2().Equals(vertex2)) ||
(e.GetVertex1().Equals(vertex2) && e.GetVertex2().Equals(vertex1)))))
{
componentsList = null;
countComponents = null;
isConnected = null;
}
// The edge isn't a bridge
else
{
//componentsList = componentsList;
//countComponents = countComponents;
//isConnected = isConnected;
}
}
}
}
// Properties
if (isCyclic != null && !(bool)isCyclic)
{
isCyclic = false;
}
else
{
isCyclic = null;
}
if (isEulerian == EulerianGraphEnum.eulerian)
{
isEulerian = EulerianGraphEnum.semiEulerian;
}
else
{
isEulerian = EulerianGraphEnum.undefined;
}
// IntegralInvariants
circuitRank = null;
if (girth != null && girth > 2)
{
girth = null;
}
//cayleysFormula = cayleysFormula;
// SequencesAndPolynomialsOthers
if (isConnected != null && !(bool)isConnected)
{
spanningTreeBFS = spanningTreeBFS = new List <IEdgeInterface>();
}
else
{
spanningTreeBFS = null;
}
matching = null;
cutVertices = null;
bridges = null;
// DegreeSequence
if (degreeSequence != null)
{
int countNeighbourVertex1 = graph.CountNeighbours(vertex1);
int countNeighbourVertex2 = graph.CountNeighbours(vertex2);
if (!isDegreeSequenceSorted)
{
// Variable
int index1, index2;
index1 = degreeSequenceInt.FindIndex(i => i == (countNeighbourVertex1 + 1));
degreeSequenceInt[index1] = countNeighbourVertex1;
index2 = degreeSequenceInt.FindIndex(i => i == (countNeighbourVertex2 + 1));
degreeSequenceInt[index2] = countNeighbourVertex2;
index1 = degreeSequence.FindIndex(p => p.Key == vertex1);
index2 = degreeSequence.FindIndex(p => p.Key == vertex2);
degreeSequence[index1] = new KeyValuePair <IVertexInterface, int>(vertex1, countNeighbourVertex1);
degreeSequence[index2] = new KeyValuePair <IVertexInterface, int>(vertex2, countNeighbourVertex2);
}
else
{
degreeSequence = null;
degreeSequenceVertex = null;
degreeSequenceInt = null;
isDegreeSequenceSorted = false;
}
if (minimumVertexDegree.HasValue)
{
if (countNeighbourVertex1 < minimumVertexDegree)
{
minimumVertexDegree = countNeighbourVertex1;
}
if (countNeighbourVertex2 < minimumVertexDegree)
{
minimumVertexDegree = countNeighbourVertex2;
}
}
if (maximumVertexDegree.HasValue)
{
if (((countNeighbourVertex1 + 1) == maximumVertexDegree) ||
((countNeighbourVertex2 + 1) == maximumVertexDegree))
{
maximumVertexDegree = null;
}
}
averageVertexDegree = null;
medianVertexDegree = null;
isRegular = null;
}
// Chordal
isChordal = null;
perfectEliminationOrderingList = null;
righNeighborhoodDictionary = null;
// GraphClass
graphClass = GraphClass.GraphClass.GraphClassEnum.undefined;
}
public void VertexDelete(IVertexInterface vertex)
{
// Component
if (componentsList != null)
{
// More components => copies of components
if (countComponents > 1)
{
// Get component which contains the vertex
IVertexInterface myVertexComponent = null;
IGraphInterface myComponentGraph = null;
foreach (IGraphInterface componentGraph in componentsList)
{
if (componentGraph.ExistsUserName(vertex.GetUserName()))
{
myComponentGraph = componentGraph;
myVertexComponent = myComponentGraph.GetVertexByUserName(vertex.GetUserName());
break;
}
}
// The vertex is component
if (myComponentGraph.CountNeighbours(myVertexComponent) == 0)
{
componentsList.Remove(myComponentGraph);
countComponents--;
isConnected = countComponents == 1 ? true : false;
}
// The vertex is in a component with another vertices
else
{
componentsList = null;
countComponents = null;
isConnected = null;
}
}
else
{
if (cutVertices != null && !cutVertices.Contains(vertex))
{
//componentsList = componentsList;
//countComponents = countComponents;
//isConnected = isConnected;
}
else
{
componentsList = null;
countComponents = null;
isConnected = null;
}
}
}
// Properties
if (isCyclic != null && (bool)isCyclic)
{
isCyclic = null;
}
if (isConnected != null && !(bool)isConnected)
{
isEulerian = EulerianGraphEnum.notEulerian;
}
else
{
isEulerian = EulerianGraphEnum.undefined;
}
// IntegralInvariants
circuitRank = null;
girth = null;
cayleysFormula = null;
// SequencesAndPolynomialsOthers
if (isConnected != null && !(bool)isConnected)
{
spanningTreeBFS = spanningTreeBFS = new List <IEdgeInterface>();
}
else
{
spanningTreeBFS = null;
}
matching = null;
cutVertices = null;
bridges = null;
// DegreeSequence
degreeSequence = null;
maximumVertexDegree = null;
minimumVertexDegree = null;
averageVertexDegree = null;
medianVertexDegree = null;
isDegreeSequenceSorted = false;
isRegular = null;
// Chordal
isChordal = null;
perfectEliminationOrderingList = null;
righNeighborhoodDictionary = null;
// GraphClass
graphClass = GraphClass.GraphClass.GraphClassEnum.undefined;
}