private void btnDraw_Click(object sender, RoutedEventArgs e)
{
switch (cbFunction.SelectedItem.ToString())
{
case "Spectral Graph for GB-S3VDD": //Draw Visual Spectral Graph for GB-S3VDD
//Clear old Edge
for (int i = 0; i < drawingPad.Children.Count; ++i)
{
string obj = drawingPad.Children[i].ToString();
if (obj.IndexOf("Line") != -1)
{
drawingPad.Children.RemoveAt(i);
i--;
}
}
dataset = new Dataset(lstPoint.ToArray());
graph = new GraphBase(dataset, double.Parse(txtXichma.Text), int.Parse(txtK.Text));
graph.myCanvas = drawingPad;
graph.DrawSG_for_GBS3VDD();
tbStatus.Text = "Visual Spectral Graph for GB-S3VDD (with k = " + txtK.Text + " & σ = " + txtXichma.Text + ") completed !";
break;
case "Spectral Graph": //Draw Visual spectral graph
//Clear old Edge
for (int i = 0; i < drawingPad.Children.Count; ++i)
{
string obj = drawingPad.Children[i].ToString();
if (obj.IndexOf("Line") != -1)
{
drawingPad.Children.RemoveAt(i);
i--;
}
}
dataset = new Dataset(lstPoint.ToArray());
graph = new GraphBase(dataset, double.Parse(txtXichma.Text), int.Parse(txtK.Text));
graph.myCanvas = drawingPad;
graph.DrawVSG();
tbStatus.Text = "Visual Spectral Graph (with k = " + txtK.Text + " & σ = " + txtXichma.Text + ") completed !";
break;
}
}
private Color rColor; //Rectangle color
#endregion Fields
#region Constructors
public MainWindow()
{
InitializeComponent();
draw = new Draw(drawingPad);
dataset = new Dataset();
restrictDataset = new Dataset();
lstPoint = new List<DPoint>();
//Initialize
chkRed.IsChecked = true;
chkSingle.IsChecked = true;
pColor = Color.FromArgb(255, 255, 0, 0);
rColor = Color.FromArgb(70, 0, 150,150);
pType = Draw.PointType.Single;
pSign = 1;
isMouseDown = false;
cbFunction.Items.Add("Spectral Graph for GB-S3VDD");
cbFunction.Items.Add("Spectral Graph");
cbFunction.Items.Add("Clustering");
cbFunction.SelectedIndex = 0;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="data">Dataset here</param>
/// <param name="xichma">xichma in wij = exp( ||xi-xj||^2 / 2*xichma^2 )</param>
/// <param name="k">kNN of xi</param>
public GraphBase(Dataset data, double xichma, int k)
{
this.Data = data;
this.Xichma = xichma;
this.k = k;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="data">Dataset here</param>
public GraphBase(Dataset data)
{
this.Data = data;
}
/// <summary>
/// Constructor 2
/// </summary>
/// <param name="_data">Dataset here</param>
/// <param name="nrSampling">Number of Sampling</param>
public Clustering(Dataset _data, int nrSampling)
{
this._data = _data;
this.nrSampling = nrSampling;
}
/// <summary>
/// Constructor 1
/// </summary>
/// <param name="_data">Dataset here</param>
public Clustering(Dataset _data)
{
this._data = _data;
myClusters = new Dictionary<int, DPoint[]>();
}
private void btnSaveImg_Click(object sender, RoutedEventArgs e)
{
SaveFileDialog saveDialog = new SaveFileDialog();
dataset = new Dataset(lstPoint.ToArray());
saveDialog.DefaultExt = ".png";
saveDialog.Filter = "PNG (.png) | *.png";
Nullable<bool> result = saveDialog.ShowDialog();
if (result == true)
{
string imgPath = saveDialog.FileName;
FileStream fs = new FileStream(imgPath, FileMode.Create);
RenderTargetBitmap renderBitmap = new RenderTargetBitmap((int)drawingPad.ActualWidth, (int)drawingPad.ActualHeight, 1 / 96, 1 / 96, PixelFormats.Pbgra32);
renderBitmap.Render(drawingPad);
BitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(renderBitmap));
encoder.Save(fs);
fs.Close();
MessageBox.Show("Capture and Save image completed !", "VSG", MessageBoxButton.OK, MessageBoxImage.Information);
tbStatus.Text = "Capture and Save image completed !";
}
}
private void btnSaveData_Click(object sender, RoutedEventArgs e)
{
SaveFileDialog saveDialog = new SaveFileDialog();
dataset = new Dataset(lstPoint.ToArray());
saveDialog.DefaultExt = ".txt";
saveDialog.Filter = "Text documents (.txt) | *.txt";
Nullable<bool> result = saveDialog.ShowDialog();
if (result == true)
{
dataset.Save(saveDialog.FileName);
MessageBox.Show("Save dataset completed !", "VSG", MessageBoxButton.OK, MessageBoxImage.Information);
tbStatus.Text = "Save dataset completed !";
}
}
private void btnOpenData_Click(object sender, RoutedEventArgs e)
{
try
{
drawingPad.Children.Clear();
lstPoint.Clear();
dataset = null;
OpenFileDialog openDlg = new OpenFileDialog();
openDlg.ShowDialog();
dataset = Dataset.Read(openDlg.FileName);
datasetName = openDlg.FileName;
switch (cbFunction.SelectedItem.ToString())
{
case "Spectral Graph for GB-S3VDD":
case "Spectral Graph":
case "Clustering":
lstPoint = dataset.Data.ToList();
graph = new GraphBase(dataset, double.Parse(txtXichma.Text), int.Parse(txtK.Text));
graph.myCanvas = drawingPad;
graph.DrawDataset();
break;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}