Re: Reading Object.

From: Peter Malzacher (malzache@fnal.gov)
Date: Fri Feb 18 2000 - 21:16:58 MET


Gagik Gavalian wrote:
> 
> Hi,
> 
> I was wondering if somebody could give me a help with the problem a
> have.
> I have macro to slice histograms and get back graph of fitted gaussians
> for each slice.
> 
> void slice_fitX(TH2F *slHisto,Int_t n_slices){
> 
> char *hist_name;
> char *mean_fit_name[20];

> // Now, my problem is how to get pointer to object with name
> "hist_name"_0 or "hist_name"_01
> // There should be some call like.
> 
> ReadObject("hist_name"_0);
> 
  
Hi Gagik..

I suppose you want something like 'ReadObject("hist_name_0")':
try:

TH1F *hist = (TH1F*) gROOT->FindObject("hist_name_0");

see: ROOT 102 on http://www-pat.fnal.gov/root/
eg: http://www-pat.fnal.gov/root/102/Documentation/Slides/Root%20102_03/ppframe.htm
slides about gROOT

Peter



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