Ok Narcís, The custom axis labels solution worked fine, problem solved for me, thank you! Regarding the comment about using the Smoothed parameter, I saw later that before changing the Y values on my application I was clearing the series with Series1.Clear, and apparently that disabled the smoothing...

My source code : unit Test; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, TeeGDIPlus, TeEngine, TeeSpline, Series, ExtCtrls, TeeProcs, Chart, StdCtrls, Buttons; type TForm1 = class(TForm) Chart1: TChart; Series1: TLineSeries; Series2: TLineSeries;...

Hi, I want to smooth a line series, but the Y values of this series may change. Reading other posts on this forum, I understood that I cannot simply use the Smoothed property, I must update the smoothed series manually. So I have added two line series to my chart, Series1 and Series2. Series2 is a l...