public GraphControlUI()
        {
            InitializeComponent();

            m_graph.SetLabels("Test Graph", "X Axis", "Y Axis");
            m_graph.BorderStyle = BorderStyle.FixedSingle;

            Add("Sine Wave", 1000
                , i =>
            {
                var x = i * Math_.Tau / 1000.0;
                var y = Math.Sin(x);
                return(new { X = x, Y = y, ErrLo = 0, ErrHi = 0 });
            }
                , new GraphControl.Series.RdrOptions
            {
                PlotType   = GraphControl.Series.RdrOptions.EPlotType.Line,
                LineWidth  = 2f,
                LineColour = Color.Blue,
                PointSize  = 0,
            });

            Add("Cosine Wave", 1000
                , i =>
            {
                var x = i * Math_.Tau / 1000.0;
                var y = Math.Cos(x);
                return(new { X = x, Y = y, ErrLo = 0, ErrHi = 0 });
            }
                , new GraphControl.Series.RdrOptions
            {
                PlotType   = GraphControl.Series.RdrOptions.EPlotType.Line,
                LineWidth  = 2f,
                LineColour = Color.Red,
                PointSize  = 0,
            });

            Add("Points", 1000
                , i =>
            {
                var x     = i * Math_.Tau / 1000.0;
                var y     = Math.Cos(x) * Math.Sin(x);
                var errlo = Math.Abs(0.1 * Math.Cos(x - Math_.TauBy16));
                var errhi = Math.Abs(0.1 * Math.Cos(x + Math_.TauBy16));
                return(new { X = x, Y = y, ErrLo = -errlo, ErrHi = +errhi });
            }
                , new GraphControl.Series.RdrOptions
            {
                PlotType    = GraphControl.Series.RdrOptions.EPlotType.Point,
                PointColour = Color.Green,
                PointSize   = 2f,
            });

            Add("Bars", 10
                , i =>
            {
                var x = i + 10;
                var y = i;                                // * Math.Sin(i * Math_.Tau / 1000.0);
                return(new { X = x, Y = y, ErrLo = 0, ErrHi = 0 });
            }
                , new GraphControl.Series.RdrOptions
            {
                PlotType  = GraphControl.Series.RdrOptions.EPlotType.Bar,
                PointSize = 0,
                BarColour = Color.SteelBlue,
            });

            m_graph.FindDefaultRange();
            m_graph.ResetToDefaultRange();
            m_graph.AddOverlayOnPaint  += OverlayOnPaint;
            m_graph.AddOverlayOnRender += OverlayOnRender;
        }