[quote]I tried to utilize the fact that there are overlaps between frames - see my earlier post - this worked fine for the 100k ttree I posted, but for real data (millions of records) the frame rate rapidly decayed to something unusable.
[/quote]This is not quite what I had in mind but give the ROOT code it would still present the binning artefact.
What happens is that when you draw into a new histogram, for better output we actually display a TGraph or TPolyMarkerxx of the actual data instead of the histogram data. However there is no way to prevent the re-creation of the TGraph (TPolyMarker) object. This creation (as opposed to reuse) of the object seems to be the source of the flickering.
Olivier, could you take a look if anything could be done to improve the situation?
Thanks,
Philippe