/// <summary>
/// Removes duplicate vertex clusters from the adjacencies.
/// </summary>
public void RemoveDuplicateVertexClusters()
{
VertexAdjacencyRow temporaryRow = new VertexAdjacencyRow();
foreach (VertexCluster vertexCluster in m_adjacencies)
{
if (!temporaryRow.ContainsAdjacency(vertexCluster))
{
temporaryRow.Adjacencies.Add(vertexCluster);
}
}
m_adjacencies = temporaryRow.Adjacencies;
}
/// <summary>
/// Merges this row with the specified row.
/// </summary>
/// <param name="adjacencyRow">The row to merge with this row.</param>
public void MergeWith(VertexAdjacencyRow adjacencyRow)
{
// Remove the headers of the merging rows from their respective adjacency lists.
this.RemoveVertex(adjacencyRow.Header);
adjacencyRow.RemoveVertex(this.Header);
// OR-Wise Merging of Adjacencies
foreach (VertexCluster adjacency in adjacencyRow.Adjacencies)
{
if (!this.ContainsAdjacency(adjacency))
{
m_adjacencies.Add(adjacency);
}
}
m_rowHeader.MergeWith(adjacencyRow.Header);
}
/// <summary>
/// Mergers two vertices together once a direct connection has been determined.
/// </summary>
/// <param name="fromVertexCluster">The vertex on the from side of the edge.</param>
/// <param name="toVertexCluster">The vertex on the to side of the edge.</param>
public void ConnectionEstablished(VertexCluster fromVertexCluster, VertexCluster toVertexCluster)
{
List <int> fromVertices = new List <int>();
List <int> toVertices = new List <int>();
foreach (int vertex in fromVertexCluster.Vertices)
{
fromVertices.Add(vertex);
}
foreach (int vertex in toVertexCluster.Vertices)
{
toVertices.Add(vertex);
}
VertexCluster fromCluster = new VertexCluster(fromVertices);
VertexCluster toCluster = new VertexCluster(toVertices);
VertexAdjacencyRow source = m_adjacencyList.RowWithHeader(fromVertexCluster);
VertexAdjacencyRow target = m_adjacencyList.RowWithHeader(toVertexCluster);
// Merge the two rows into one
source.MergeWith(target);
// Remove the old from the list
m_adjacencyList.RemoveRow(target);
// Update the vertices in the rest of the table
foreach (VertexAdjacencyRow row in m_adjacencyList.Rows)
{
foreach (VertexCluster vertexCluster in row.Adjacencies)
{
if (vertexCluster.Equals(fromCluster) || vertexCluster.Equals(toCluster))
{
vertexCluster.Vertices = source.Header.Vertices;
}
}
row.RemoveDuplicateVertexClusters();
}
}
/// <summary>
/// Removes a specified row from the list.
/// </summary>
/// <param name="row">The row to remove.</param>
public void RemoveRow(VertexAdjacencyRow row)
{
m_adjacencyRows.Remove(row);
}
/// <summary>
/// Merges this row with the specified row and returns the resulting row
/// </summary>
/// <param name="adjacencyRow">The row to merge with this row.</param>
/// <returns>A row which is the OR-wise union of two rows.</returns>
public VertexAdjacencyRow MergeToFormNewRow(VertexAdjacencyRow adjacencyRow)
{
this.MergeWith(adjacencyRow);
return(this);
}
