Re: Canvas not updated

From: Rene BRUN <>
Date: Thu, 10 Feb 2005 21:26:31 +0100 (MET)


Could you send the shortest possible running script reproducing this problem?

Rene Brun

On Thu, 10 Feb 2005, Dimitris Sideris wrote:

> Hello,
> I just switched to ROOT v 4.02 (win32gdk) and windows xp and i'm running a
> macro interactively that fills some histos and draws them on three separate
> canvaces. There is a loop and while looping the canvaces are redrawn every
> few minutes. When I'm running this with ROOT 3.03/09 on my laptop nothing
> weird happens. When i run exactly the same with the new version on the new
> computer, it still runs but the following problems appear. When the canvaces
> are lauched the appear "frozen" i.e. the menu is not drawn on any of them.
> Then while looping, no histograms are drawn or refreshed. I use
> cxx->Modified; cxx->Update(); for each canvas. Only when the loop has
> finished and the macro has terminated, only then is the last version of the
> histos drawn.
> On my laptop however the same macro runs perfectly fine and the canvaces are
> updated as expected.
> one more simmilar problem is that one of the histos is a TH3F. On the older
> version of ROOT when I draw this histo it comes out fine but when i rotate
> it the points disapear until its refreshed again by the macro. in the new
> version of ROOT the same histo is drawn after the macro has terminated (as
> mentionned before) but the points are not drawn at all (the "box" frame
> appears).
> Any ideas?
> Cheers
> Dimitris
Received on Thu Feb 10 2005 - 21:26:36 MET

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