private void CreateConvexGraph_Click(object sender, RoutedEventArgs e)
{
if ((string)this.CreateCovexGraph.Header == "Create Convex Graph")
{
this.Visibility = System.Windows.Visibility.Visible;
#region clearing the nodes and edges in case of reset
foreach (Node node in this.JGNodes)
{
node.Clear();
}
Node.LineToUVGuide.Clear();
this.JGNodes.Clear();
JGEdge.LineToEdgeGuide.Clear();
foreach (JGEdge edge in this.edges)
{
edge.Clear();
}
this.edges.Clear();
#endregion
this._host.Menues.IsEnabled = false;
this._host.CommandReset.Click += endBtn_Click;
this._host.UIMessage.Text = "Select points at the center of convex spaces";
this._host.UIMessage.Visibility = System.Windows.Visibility.Visible;
//this.JGraphMode = true;
this._host.Cursor = Cursors.Pen;
this._host.FloorScene.MouseLeftButtonDown += FloorScene_MouseLeftButtonDown;
}
else
{
this.Hide_show_Menu.IsEnabled = false;
this.EditGraph.IsEnabled = false;
this.DrawJG.IsEnabled = false;
this.CreateCovexGraph.Header = "Create Convex Graph";
this.Children.Clear();
//resetting the graph
this.JGNodes.Clear();
this.jgGraph = null;
this.edges.Clear();
this.nodeRemovingMode = false;
edgeLine = null;
node1 = null;
node2 = null;
edgeRemoveMode = false;
relatedEdges = null;
root = null;
JGHierarchy = null;
}
}
private void Mark_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
this._host.Menues.IsEnabled = true;
this._host.UIMessage.Visibility = Visibility.Hidden;
foreach (Node node in this.JGNodes)
{
node.Mark.MouseLeftButtonDown -= Mark_MouseLeftButtonDown;
}
Node n = null;
Node.LineToUVGuide.TryGetValue((Line)sender, out n);
if (n != null)
{
foreach (JGVertex item in jgGraph.Vertices)
{
if (item.Point == n.Coordinates)
{
root = item;
break;
}
}
}
if (root == null)
{
MessageBox.Show("Vertex not tracked");
return;
}
n.Mark.Stroke = Brushes.DarkRed;
#region create hierarchy
HashSet <JGVertex> unExplored = new HashSet <JGVertex>();
JGHierarchy = new List <HashSet <JGVertex> >();
foreach (JGVertex item in jgGraph.Vertices)
{
if (item.Point != root.Point)
{
unExplored.Add(item);
}
}
HashSet <JGVertex> firstLevel = new HashSet <JGVertex>();
firstLevel.Add(root);
JGHierarchy.Add(firstLevel);
HashSet <JGVertex> newLevel = new HashSet <JGVertex>();
HashSet <JGVertex> level = new HashSet <JGVertex>();
level.Add(root);
while (unExplored.Count != 0)
{
foreach (JGVertex item in level)
{
foreach (JGVertex vertex in item.Connections)
{
if (unExplored.Contains(vertex))
{
newLevel.Add(vertex);
}
}
}
foreach (JGVertex vertex in newLevel)
{
unExplored.Remove(vertex);
}
if (newLevel.Count == 0 && unExplored.Count != 0)
{
MessageBox.Show("Justified Graph is not a linked graph!\nTry adding connections or removing unconnected nodes...");
return;
}
level.Clear();
level.UnionWith(newLevel);
HashSet <JGVertex> thisLevel = new HashSet <JGVertex>();
foreach (JGVertex item in level)
{
thisLevel.Add(item);
}
JGHierarchy.Add(thisLevel);
newLevel.Clear();
}
#endregion
drawGraph();
}
/// <summary>
/// Clears this instance.
/// </summary>
public void Clear()
{
this._host = null;
foreach (Node item in JGNodes)
{
item.Clear();
}
JGNodes.Clear();
Node.LineToUVGuide.Clear();
foreach (JGEdge item in edges)
{
item.Clear();
}
edges.Clear();
JGEdge.LineToEdgeGuide.Clear();
this.CreateCovexGraph.Click -= CreateConvexGraph_Click;
this.Hide_show_Menu.Click -= Hide_show_Menu_Click;
this.AddVertex.Click -= AddVertex_Click;
this.RemoveVertex.Click -= RemoveVertex_Click;
this.MoveVertex.Click -= MoveVertex_Click;
this.AddEdge.Click -= AddEdge_Click;
this.RemoveEdge.Click -= RemoveEdge_Click;
this.DrawJG.Click -= DrawJG_Click;
this.JustifiedGraphMenu = null;
this.CreateCovexGraph = null;
this.EditGraph = null;
this.AddVertex = null;
this.RemoveVertex = null;
this.MoveVertex = null;
this.AddEdge = null;
this.RemoveEdge = null;
this.DrawJG = null;
this.Hide_show_Menu = null;
if (this.JGNodes != null)
{
this.JGNodes.Clear();
this.JGNodes = null;
}
this.jgGraph = null;
if (this.edges != null)
{
this.edges.Clear();
this.edges = null;
}
this.edgeLine = null;
this.node1 = null;
this.node2 = null;
if (this.relatedEdges != null)
{
this.relatedEdges.Clear();
this.relatedEdges = null;
}
this.root = null;
if (this.JGHierarchy != null)
{
this.JGHierarchy.Clear();
this.JGHierarchy = null;
}
Node.FloorScene = null;
Node.Transform = null;
JGEdge.FloorScene = null;
JGEdge.Transform = null;
}