Re: [ROOT] Copy TDirectory in another TFile

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed May 05 2004 - 15:23:57 MEST 

Hi Markus,

There is no direct function to do this. However, you can do
something like:

  TFile  f("30200020026938.root");
  f.cd("Record3");
  TDirectory *old = gDirectory;
  old->ReadAll();
  TFile f2("newfile.root","recreate");
  f2.mkdir("subdir");
  f2.cd("subdir");
  old->GetList()->Write();
  

Rene Brun

Markus Stoye wrote:
> 
> Hi'
> I've got a TFile with several TDirectories:
> 
> root [0] TFile  f("30200020026938.root")
> root [1] f.ls()
> TFile**         30200020026938.root
>  TFile*         30200020026938.root
>   KEY: TDirectory       Record2;1       Record2
>   KEY: TDirectory       Record3;1       Record3
>   KEY: TDirectory       Record4;1       Record4
>   KEY: TDirectory       Record1;1       Record1
> 
> and wand to copy and rename one Directory into another TFile.

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