/// <summary>
/// Visualizes this instance.
/// </summary>
public void Visualize()
{
// create VisualTreeNode for RootNode
VisualTreeNode root = new VisualTreeNode(this.tree.RootNode);
// calculate the coordinates to begin with
double startLeft = (this.canvas.ActualWidth / 2) - VisualTreeNode.SmallNodeWidth / 2;
this.DrawNode(root, startLeft, 10, 2.5);
}
/// <summary>
/// Draws the node.
/// </summary>
/// <param name="node">The node.</param>
/// <param name="left">The left.</param>
/// <param name="top">The top.</param>
/// <param name="divisor">The divisor.</param>
private void DrawNode(VisualTreeNode node, double left, double top, double divisor)
{
node.Left = left;
node.Top = top;
// Draw Node
this.canvas.Children.Add(node.Visualize());
// Recursion for left side
if (node.node.LeftNode != null)
{
VisualSplit leftSplit = node.OutgoingSplits[0];
leftSplit.LeftFrom = left;
leftSplit.TopFrom = top;
leftSplit.LeftTo = left - left / divisor;
leftSplit.TopTo = top + 100;
this.canvas.Children.Add(leftSplit.GetLine());
this.canvas.Children.Add(leftSplit.Visualize());
VisualTreeNode leftNode = new VisualTreeNode(node.node.LeftNode);
this.DrawNode(leftNode, left - left / divisor, top + 100, divisor * 2);
}
// Recursion for right side
if (node.node.RightNode != null)
{
VisualSplit rightSplit = node.OutgoingSplits[1];
rightSplit.LeftFrom = left;
rightSplit.TopFrom = top;
rightSplit.LeftTo = left + left / divisor;
rightSplit.TopTo = top + 100;
this.canvas.Children.Add(rightSplit.GetLine());
this.canvas.Children.Add(rightSplit.Visualize());
VisualTreeNode rightNode = new VisualTreeNode(node.node.RightNode);
this.DrawNode(rightNode, left + left / divisor, top + 100, divisor * 2);
}
}
