Re: [ROOT] TH1::SetDrawOption

From: Rene Brun (Rene.Brun@cern.ch)
Date: Fri Apr 30 2004 - 08:41:17 MEST


Dmitry,

I cannot reproduce this problem. Please give more details

Rene Brun

"Dmitry A. Shtol" wrote:
> 
> This histogram is not from disk file. It is generated in root as the result
> of processing of TTree.
> 
> ==============================================================
> Dmitry A. Shtol                        (SND group)
> Budker Institute of Nuclear Physics
> 
> On Thu, 29 Apr 2004, Rene Brun wrote something very interesting:
> 
> > Hi Dmitry,
> >
> > I suspect that you click in the browser pane on myhist;1. This is the version
> > that is always taken from the disk file. So calling SetDrawoption will have no
> > effect. You have to import the object in memory and set the option on this
> > object.
> > It is a bit tricky to do this from the browser: click on "myhist;1" first,
> > then go the left pane, double click on "ROOT files" and again on the file name,
> > Then select SetDrawOption on the object "myhist" and not "myhist;1
> > You can do it also from the command line.
> >
> > Rene Brun
> >
> >
> > "Dmitry A. Shtol" wrote:
> > >
> > > Hi!
> > > I set histogram draw option by TH1::SetDrawOption("....."); (option is
> > > "hist e", for example). But when I draw histogram by TH1::Draw() (or by click
> > > in browser), option is not used and after drawing TH1::GetDrawOption()
> > > returns "". Why? What should I do to draw histogram
> > > through the browser with option what I need ?
> > >
> > > ==============================================================
> > > Dmitry A. Shtol                        (SND group)
> > > Budker Institute of Nuclear Physics
> >



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