public override Gdk.Pixbuf CreateIcon(Tables.Denso.Table table)
{
var t = (Tables.Denso.Table2D)table;
if (t.IsDataConst)
return ConstDataIcon;
plotSurface.Clear ();
plotSurface.SmoothingMode = SmoothingMode;
// y-values, x-values (!)
LinePlot lp = new LinePlot (t.GetValuesYasFloats (), t.ValuesX);
lp.Pen = pen;
plotSurface.Add (lp);
plotSurface.XAxis1.Hidden = true;
plotSurface.YAxis1.Hidden = true;
return DrawAndConvert ();
}