public static void DrawPoint(Chart chart, PointData pointOne, PointData pointTwo = null)
{
if (chart.Visible)
{
pointOne.Get(out var x, out var y);
chart.Series[1].Points.DataBindXY(x, y);
if (pointTwo != null)
{
pointTwo.Get(out x, out y);
chart.Series[3].Points.DataBindXY(x, y);
}
}
}