public string ToGraphviz(string name, Func <T, string> getNodeLabel, Func <E, string> getEdgeLabel)
{
int num = 0;
Dictionary <T, int> nodeDic = Nodes.ToDictionary(n => n, n => num++, Comparer);
string nodes = Nodes.ToString(e => " {0} [ label =\"{1}\"];".FormatWith(nodeDic[e], getNodeLabel(e)), "\r\n");
string edges = EdgesWithValue.ToString(e => " {0} -> {1} [ label =\"{2}\"];".FormatWith(nodeDic[e.From], nodeDic[e.To], getEdgeLabel(e.Value)), "\r\n");
return("digraph \"{0}\"\r\n{{\r\n{1}\r\n{2}\r\n}}".FormatWith(name, nodes, edges));
}
public DirectedEdgedGraph <T, E> WhereEdges(Func <Edge <T, E>, bool> condition, bool keepAllNodes)
{
if (keepAllNodes)
{
DirectedEdgedGraph <T, E> result = new DirectedEdgedGraph <T, E>(Comparer);
foreach (var item in Nodes)
{
result.Add(item, RelatedTo(item).Where(to => condition(new Edge <T, E>(item, to.Key, to.Value))));
}
return(result);
}
else
{
DirectedEdgedGraph <T, E> result = new DirectedEdgedGraph <T, E>(Comparer);
foreach (var e in EdgesWithValue.Where(condition))
{
result.Add(e.From, e.To, e.Value);
}
return(result);
}
}
public XDocument ToDGML(Func <T, XAttribute[]> getNodeAttributes, Func <E, XAttribute[]> getEdgeAttributes)
{
int num = 0;
Dictionary <T, int> nodeDic = Nodes.ToDictionary(n => n, n => num++, Comparer);
XNamespace ns = "http://schemas.microsoft.com/vs/2009/dgml";
return(new XDocument(
new XElement(ns + "DirectedGraph",
new XElement(ns + "Nodes",
Nodes.Select(n => new XElement(ns + "Node",
new XAttribute("Id", nodeDic[n]),
getNodeAttributes(n)))),
new XElement(ns + "Links",
EdgesWithValue.Select(e => new XElement(ns + "Link",
new XAttribute("Source", nodeDic[e.From]),
new XAttribute("Target", nodeDic[e.To]),
getEdgeAttributes(e.Value))))
)
));
}