Steema Central

Hello,

I need to allow panning huge amount of data in series,
and so TChart is running slowly.. It would be ok, but
I also need to catch a moment, when panning is done, and
that time onAfterDraw event is not consistent which final state of
Chart.. This causes inactual behaviour of procedures in onAfterDraw event.

Thanks for any suggestions.

Hi Kamil,

Have you tried using TChart's OnScroll event for that?

Regarding your series performance, could you please let us know some more details about your chart so that we can help you improving its performance?

Thanks in advance.

Thanks for reply, it 's working.. I also added OnZoom and OnUndoZoom to catch other moments when x-axis is changing..

Speed of series is good enough, i use FastLineSeries, x-is dateTime,y-real value.

Best regards,

Kamil