private void button1_Click(object sender, EventArgs e)
{
picImage.Refresh();
var watch = System.Diagnostics.Stopwatch.StartNew();
Random objRandom = new Random();
dataSetList = new List <double[]>();
for (int i = 0; i < int.Parse(textBox5.Text); i++)
{
// khoi tao mang 1 chieu point voi 2 phan tu ung voi toa do x va y
double[] point = new double[2];
for (int j = 0; j < 2; j++)
{
if (j == 0) // neu j==0 la x
{
// tao ngau nhien toa do x theo chieu dai cua picturebox
point[j] = Misc.taoDiemNgauNhien(objRandom, 0, 500);
}
else // nguoc lai la y
{
// tao ngau nhien toa do y theo chieu cao cua picturebox
point[j] = Misc.taoDiemNgauNhien(objRandom, 0, 500);
}
}
// them diem vua tao vao list diem
dataSetList.Add(point);
}
// goi ham khoi tao 2 tham so o class Kmeans voi 2 tham so lan luot la so cum, va khoang cach
objKMeans = new KMeans((int)numericUpDown2.Value, new TinhKhoangCach(), int.Parse(textBox4.Text));
objBackgroundWorker = new BackgroundWorker();
objBackgroundWorker.WorkerReportsProgress = true;
objBackgroundWorker.DoWork += ObjBackgroundWorker_DoWork;
objBackgroundWorker.RunWorkerCompleted += ObjBackgroundWorker_RunWorkerCompleted;
objBackgroundWorker.ProgressChanged += ObjBackgroundWorker_ProgressChanged;
objBackgroundWorker.RunWorkerAsync(dataSetList.ToArray());
watch.Stop();
var elapsedMs = watch.Elapsed.TotalSeconds;
//MessageBox.Show(elapsedMs.ToString());
textBox1.Text = elapsedMs.ToString();
}