/// <summary>
/// Gets the permutation vector for the Reverse Cuthill-McKee numbering.
/// </summary>
/// <param name="mesh">The mesh.</param>
/// <returns>Permutation vector.</returns>
public int[] Renumber(AdjacencyMatrix matrix)
{
this.matrix = matrix;
int bandwidth1 = matrix.Bandwidth();
var pcol = matrix.ColumnPointers;
// Adjust column pointers (1-based indexing).
Shift(pcol, true);
// TODO: Make RCM work with 0-based matrix.
// Compute the RCM permutation.
int[] perm = GenerateRcm();
int[] perm_inv = PermInverse(perm);
int bandwidth2 = PermBandwidth(perm, perm_inv);
if (Log.Verbose)
{
Log.Instance.Info(String.Format("Reverse Cuthill-McKee (Bandwidth: {0} > {1})",
bandwidth1, bandwidth2));
}
// Adjust column pointers (0-based indexing).
Shift(pcol, false);
return perm_inv;
}
/// <summary>
/// Gets the permutation vector for the Reverse Cuthill-McKee numbering.
/// </summary>
/// <param name="mesh">The mesh.</param>
/// <returns>Permutation vector.</returns>
public int[] Renumber(Mesh mesh)
{
int bandwidth1, bandwidth2;
this.node_num = mesh.vertices.Count;
// Algorithm needs linear numbering of the nodes.
mesh.Renumber(NodeNumbering.Linear);
// Set up the adj_row adjacency pointer array.
matrix = new AdjacencyMatrix(mesh);
bandwidth1 = matrix.Bandwidth();
// Compute the RCM permutation.
int[] perm = GenerateRcm();
int[] perm_inv = PermInverse(node_num, perm);
bandwidth2 = PermBandwidth(perm, perm_inv);
if (Behavior.Verbose)
{
SimpleLog.Instance.Info(String.Format("Reverse Cuthill-McKee (Bandwidth: {0} > {1})",
bandwidth1, bandwidth2));
}
return perm_inv;
}
public int[] Renumber(Mesh mesh)
{
this.node_num = mesh.vertices.Count;
mesh.Renumber(NodeNumbering.Linear);
this.matrix = new AdjacencyMatrix(mesh);
int num = this.matrix.Bandwidth();
int[] numArray = this.GenerateRcm();
int[] numArray1 = this.PermInverse(this.node_num, numArray);
int num1 = this.PermBandwidth(numArray, numArray1);
if (Behavior.Verbose)
{
SimpleLog.Instance.Info(string.Format("Reverse Cuthill-McKee (Bandwidth: {0} > {1})", num, num1));
}
return(numArray1);
}
