public static GraphEdge Connect(GraphNode from, GraphNode to, Graph graph)
{
if (!graph.Nodes.Contains(from) || !graph.Nodes.Contains(to))
{
throw new ArgumentException();
}
var edge = new GraphEdge(from, to);
from.edges.Add(edge);
to.edges.Add(edge);
return(edge);
}
public static void Disconnect(GraphEdge edge)
{
edge.To.edges.Remove(edge);
edge.From.edges.Remove(edge);
}
public void DeleteEdge(GraphEdge edge)
{
GraphNode.Disconnect(edge);
}