public static void CreateFromFile(string expr, List <Exception> exceptionsList, SortedList <string, Graph> graphsList, RichTextBox output)
{
try
{
int startIndex = expr.IndexOf("\"") + 1;
int endIndex = expr.IndexOf("\")");
string path = expr.Substring(startIndex, endIndex - startIndex);
string name = expr.Contains(":=") ? expr.Substring(0, expr.IndexOf(":=")) : "";
var graphMatrix = new IntegerSquareMatrix(IntegerMatrix.GetFromFile(path));
if (graphMatrix.Columns == 0)
{
exceptionsList.Add(new FormatException("Incorrect matrix size in file"));
}
var graph = new Graph(graphMatrix, name);
graphsList.Add(name, graph);
output.Text = graph.ToString();
}
catch (Exception e)
{
exceptionsList.Add(e);
output.Text += e.Message;
}
}
public void SaveGraph(string path)
{
Directory.CreateDirectory(path);
IntegerSquareMatrix a = ToMatrix();
string line = "";
for (int i = 0; i < a.Rows; i++)
{
line = "";
for (int j = 0; j < a.Columns; j++)
{
line += Convert.ToString(a[i, j]);
if (j != a.Columns - 1)
{
line += " ";
}
}
if (i != a.Rows - 1)
{
line += "\n";
}
System.IO.File.AppendAllText(path + "\\AdjMatrix", line);
}
}
/// <summary>
/// Graph constructor from adjacency matrix. Calls DFS to complete construction.
/// </summary>
/// <param name="matrix"></param>
public Graph(IntegerSquareMatrix matrix, string name = "")
{
adjNodesList = new List <GraphNode>(matrix.Columns);
for (int i = 0; i < matrix.Columns; i++)
{
///create List of empty Nodes
GraphNode a = new GraphNode();
adjNodesList.Add(a);
a.Number = i;
}
for (int i = 0; i < matrix.Columns; i++)
{
for (int j = 0; j < matrix.Columns; j++)
{
if (matrix[i, j] != 0)
{
this[i].adjList.Add(this[j]);
}
}
}
DFS();
Name = name;
}
