// Menganimasikan query pada graf dengan mengubah warna startNode, goalNode, checkedNode, dan pathNode
private void _animateGraph(int startNode, int goalNode)
{
_initializeGraph();
// zoom in view untuk agar view terfokus ke satu node dan beberapa di sekitarnya
// rasio zoom diset
viewer.ZoomF = 0.05 * Math.Max(viewer.GraphHeight, viewer.GraphWidth) / viewer.Graph.FindNode("1").Attr.Height;
viewer.ZoomInPressed();
// mengubah warna startNode menjadi kuning
viewer.Graph.FindNode(startNode.ToString()).Attr.FillColor = Microsoft.Msagl.Drawing.Color.Yellow;
// set node yang baru diubah warnanya menjadi center dari view
viewer.CenterToPoint(viewer.Graph.FindNode(startNode.ToString()).Attr.Pos);
graphPanel.Refresh();
var tw = Task.Delay(1000);
tw.Wait();
viewer.Graph.FindNode(goalNode.ToString()).Attr.FillColor = Microsoft.Msagl.Drawing.Color.Red;
viewer.CenterToPoint(viewer.Graph.FindNode(goalNode.ToString()).Attr.Pos);
graphPanel.Refresh();
tw = Task.Delay(1000);
tw.Wait();
int CheckedCount = rootedTree.CheckedNode.Count;
// set waktu transisi antar node dalam animasi
double waitTime = Math.Min((double)1000, 20000.0 / CheckedCount);
foreach (int el in rootedTree.CheckedNode)
{
viewer.Graph.FindNode(el.ToString()).Attr.FillColor = Microsoft.Msagl.Drawing.Color.LightPink;
viewer.CenterToPoint(viewer.Graph.FindNode(el.ToString()).Attr.Pos);
graphPanel.Refresh();
tw = Task.Delay((int)waitTime);
tw.Wait();
}
int[] path = rootedTree.PathNode.ToArray();
for (int i = path.Length - 1; i >= 0; --i)
{
viewer.Graph.FindNode(path[i].ToString()).Attr.FillColor = Microsoft.Msagl.Drawing.Color.RoyalBlue;
}
viewer.ZoomOutPressed();
viewer.ZoomOutPressed();
if (Math.Abs(viewer.Graph.FindNode(goalNode.ToString()).Attr.Pos.X - viewer.Graph.FindNode(startNode.ToString()).Attr.Pos.X) > Math.Abs(viewer.Graph.FindNode(goalNode.ToString()).Attr.Pos.Y - viewer.Graph.FindNode(startNode.ToString()).Attr.Pos.Y))
{
viewer.ZoomF = viewer.GraphWidth / Math.Abs(viewer.Graph.FindNode(goalNode.ToString()).Attr.Pos.X - viewer.Graph.FindNode(startNode.ToString()).Attr.Pos.X);
}
else
{
viewer.ZoomF = viewer.GraphHeight / Math.Abs(viewer.Graph.FindNode(goalNode.ToString()).Attr.Pos.Y - viewer.Graph.FindNode(startNode.ToString()).Attr.Pos.Y);
}
viewer.ZoomF *= 0.5;
var x = new object[2];
x[0] = viewer.Graph.FindNode(goalNode.ToString());
x[1] = viewer.Graph.FindNode(startNode.ToString());
viewer.ZoomInPressed();
viewer.CenterToGroup(x);
graphPanel.Refresh();
}
public void InitializeForm()
{
this.algorithms = new List <Action>();
this.nodePickingCancellationTokenSource = new CancellationTokenSource();
this.nodePickingCancellationToken = this.nodePickingCancellationTokenSource.Token;
graph = new Frame.Models.DGraph(ArrowStyle.None);
viewer = new Microsoft.Msagl.GraphViewerGdi.GViewer();
viewer.EdgeInsertButtonVisible = viewer.UndoRedoButtonsVisible =
viewer.windowZoomButton.Visible = viewer.NavigationVisible = false;
viewer.LayoutAlgorithmSettingsButtonVisible = true;
graph.AddVertice("A");
graph.AddVertice("B");
graph.AddVertice("C");
graph.AddVertice("D");
//AddNodesLocations();
graph.AddEdge("C", "B", 234);
graph.AddEdge("A", "C", 53);
graph.AddEdge("A", "C", 43);
viewer.CenterToPoint(new Microsoft.Msagl.Core.Geometry.Point(viewer.Width / 2, viewer.Height / 2));
viewer.Graph = graph;
viewer.MouseDown += Viewer_MouseDown;
viewer.MouseUp += Viewer_MouseUp;
viewer.MouseMove += Viewer_MouseMove;
viewer.MouseClick += Viewer_MouseClick;
viewer.GraphLoadingEnded += Viewer_GraphLoadingEnded;
viewer.GraphChanged += Viewer_GraphChanged;
viewer.CustomOpenButtonPressed += Viewer_CustomOpenButtonPressed;
viewer.KeyDown += Viewer_KeyDown;
//viewer.ObjectUnderMouseCursorChanged += Viewer_ObjectUnderMouseCursorChanged;
/*viewer.LayoutEditor.RemoveEdgeDraggingDecorations = null;
* viewer.LayoutEditor.RemoveObjDraggingDecorations = null;*/
//viewer.AsyncLayout = true;
this.SuspendLayout();
viewer.Dock = System.Windows.Forms.DockStyle.Fill;
this.graphPanel.Controls.Add(viewer);
this.ResumeLayout();
}
private void selectNode(string newSelectedNodeID)
{
//If there is allready a selected node then "deselect" it
if (_selectedNode != null)
{
_selectedNode.Attr.Color = Color.Black;
}
_selectedNode = _gViewer.Graph.FindNode(newSelectedNodeID);
//save new selected node
if (_selectedNode != null)
{
_selectedNode.Attr.Color = Color.Red;
//and "select" it
}
_gViewer.CenterToPoint(_selectedNode.BoundingBox.Center);
_gViewer.Invalidate();
}