private void B0_Click(object sender, EventArgs e)
{
TextBox t0x = FindControl(panel1, "t0x") as TextBox;
TextBox t0y = FindControl(panel1, "t0y") as TextBox;
int x;
int y;
int.TryParse(t0x.Text, out x);
int.TryParse(t0y.Text, out y);
f = Figure.Displacement(f, x, y);
RedrawPolygon(f);
}
