private void chart1_PostPaint(object sender, ChartFX.WinForms.CustomPaintEventArgs e)
{
int orgX = chart1.ChartAreaRectangle.Width / 2;
int orgY = chart1.ChartAreaRectangle.Height / 2;
int cy = chart1.AxisY.ValueToPixel(30); ==> Always return 0;
// I Want DrawCircle (OrgX,OrgY and cy size )
}