Re: [ROOT] setting the displayed title of a histogram

From: Rene Brun (Rene.Brun@cern.ch)
Date: Mon Jun 30 2003 - 21:13:45 MEST


Hi Ed,

After hnew->SetTitle("My Title");
add
hnew->Draw();

or, do
TH2F *hnew = new TH2F("hnew","My Title",100,0,10,100,0,20);
pT->Draw("a:b>>hnew");


Rene Brun

On Mon, 30 Jun 
2003, Ed Oltman wrote:

> Hello,
>   
> I would like to create a histogram using TTree::Draw() and then
> change the title:
> 
> The following code snipped does not display "My title"
> 
>    TTree *pT = pointer to a tree
> 
>    pT->Draw("a:b>>hnew(100,0.,10.,100,0.,20.)"); 
>    TH2F *hnew = (TH2F *)gDirctory->Get("hnew");
>    hnew->SetTitle("My title");
> 
> It does not change the title.  hnew->GetTitle() returns "My title", but
> I can't seem to get it to display.
> 
> I'm guided here by the following does which does display "My title":
> 
>    pT->Draw("a:b")
>    TH1F *htemp = gPad->Get("htemp")
>    htem->SetTitle("My title")
> 
> I am using win32 version of root 3.05/3 on Win2k.  Thanks
> 
> Ed Oltman
> 
> 



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