Re: text in histograms

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Aug 12 1997 - 14:41:15 MEST


Elemer Nagy wrote:
> 
>   Can anybody write me down the character sequence in ROOT for the
> following text to be written on a histogram axis, here written in TeX-style:
> 
>              M_{\mu^+\mu^-}^2
> 

Drawing superscripts and subscripts is only supported  for Postscript
output. Examples are given at :
     http://root.cern.ch/root/html/TPostScript.html
The list of special escape characters is given at:
     http://root.cern.ch/root/html/TPostScript.html#TPostScript:Text

Note that only one level of super/subscript is supported.
Your example can be encoded as illustrated by the following macro:
{
   gROOT->Reset();
   c1 = new TCanvas("c1","mumu example",400,600);
   text = new TText();
   text->SetTextSize(0.1);
   text->SetTextAlign(22);
   text->DrawText(.5,.5,"M^2?`m!+?m!-#");
   c1->Print("mumu.ps");
   gSystem->Exec("gs mumu.ps");
}

Rene Brun



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