public virtual void readXMLgraph(string fpath)
{
XmlTextReader reader = new XmlTextReader(fpath);
Nodo nodo = new Nodo(0, 0, 0);
Arco arco = new Arco(0, 0, 0, 0);
int temp;
while (reader.Read())
{
if (reader.Name == "nodo")
{
while (reader.MoveToNextAttribute())
{
switch (reader.Name)
{
case "id":
nodo.id = Convert.ToInt16(reader.Value);
break;
case "x":
nodo.x = Convert.ToInt16(reader.Value);
break;
case "y":
nodo.y = Convert.ToInt16(reader.Value);
break;
}
}
V.Add(nodo);
numNodi++;
}
if (reader.Name == "arco")
{
while (reader.MoveToNextAttribute())
{
switch (reader.Name)
{
case "id":
arco.id = Convert.ToInt16(reader.Value);
break;
case "end1":
arco.end1 = Convert.ToInt16(reader.Value);
break;
case "end2":
arco.end2 = Convert.ToInt16(reader.Value);
break;
case "type":
if (reader.Value == "Edge")
isOr = true;
break;
case "w":
arco.w = Convert.ToInt16(reader.Value);
break;
}
}
E.Add(arco);
if (isOriented)
{
temp = arco.end1;
arco.end1 = arco.end2;
arco.end2 = temp;
E.Add(arco);
numArchi++;
isOr = false;
}
numArchi++;
}
}
reader.Close();
}
public virtual List<int> kruskal()
{
UpTree myUT = new UpTree(numNodi);
List<Arco> E1 = new List<Arco>();
List<int> A = new List<int>();
for (int i = 0; i < numNodi; i++)
myUT.makeSet(V[i].id);
#region Edge sort
XmlTextReader reader = new XmlTextReader("Grafo.xml");
Nodo nodo = new Nodo(0, 0, 0);
Arco arco = new Arco(0, 0, 0, 0);
while (reader.Read())
{
if (reader.Name == "arco")
{
while (reader.MoveToNextAttribute())
{
switch (reader.Name)
{
case "id":
arco.id = Convert.ToInt16(reader.Value);
break;
case "end1":
arco.end1 = Convert.ToInt16(reader.Value);
break;
case "end2":
arco.end2 = Convert.ToInt16(reader.Value);
break;
case "w":
arco.w = Convert.ToInt16(reader.Value);
break;
}
}
E1.Add(arco);
}
}
reader.Close();
IEnumerable<Arco> temp = E1.OrderBy(arc => arc.w);
E1 = temp.ToList();
#endregion
for (int i = 0; i < E1.Count; i++)
{
if (myUT.findSet(E1[i].end1) != myUT.findSet(E1[i].end2))
{
A.Add(E1[i].id);
myUT.union(E1[i].end1, E1[i].end2);
}
}
return A;
}