public static void AddNode(GraphNode node)
{
Nodes.Add(node);
Edges.Add(node, new List <GraphEdge>());
Adjency.Add(node, new List <GraphNode>());
LastIndex++;
}
public static void Clear()
{
foreach (GraphNode node in Nodes)
{
Canvas canvas = node.Parent as Canvas;
foreach (List <GraphEdge> list in Edges.Values)
{
if (list != null)
{
foreach (GraphEdge edge in list)
{
if (edge != null)
{
canvas.Children.Remove(edge.EdgeLine);
canvas.Children.Remove(edge.WeightLabel);
}
}
}
}
canvas.Children.Remove(node);
}
Selected1 = null;
Selected2 = null;
Edges.Clear();
Nodes.Clear();
Adjency.Clear();
LastIndex = -1;
}
public static void RemoveNode(GraphNode node)
{
Canvas canvas = node.Parent as Canvas;
if (canvas != null)
{
if (Edges.ContainsKey(node))
{
foreach (GraphEdge edge in Edges[node])
{
if (node == edge.NodeFirst)
{
Edges[edge.NodeSecond].Remove(edge);
}
else
{
Edges[edge.NodeFirst].Remove(edge);
}
canvas.Children.Remove(edge.EdgeLine);
canvas.Children.Remove(edge.WeightLabel);
}
Edges.Remove(node);
}
canvas.Children.Remove(node);
Nodes.Remove(node);
Adjency.Remove(node);
if (node.Index == LastIndex)
{
LastIndex--;
}
}
}
