/data3/calcul/jacquem/working_dir/Micromegas/micromegasFrameWork/src/analyse/root/TChainExample.cpp File Reference

#include <map>
#include "TKey.h"
#include <TROOT.h>
#include <TList.h>
#include <TTree.h>
#include <TFile.h>
#include <TChain.h>
#include "TChainElement.h"
#include <iostream>
#include "Log.hh"
#include "MicroException.hh"
#include <string>
#include "root/CaloRun.hh"
#include "root/CaloEvent.hh"

Include dependency graph for TChainExample.cpp:

Go to the source code of this file.

Functions
int	main (int argc, char **argv)

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Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 24 of file TChainExample.cpp.

                              {


  TChain chain("T");
  chain.Add("/lapp_data/LC/data/TB2012/SPS_H2_may_2012/Production/CaloHits/DHCAL_714372_DHCAL_714372_I0_0.CaloHit.root");
  chain.Add("/lapp_data/LC/data/TB2012/SPS_H2_may_2012/Production/CaloHits/DHCAL_714372_DHCAL_714372_I1_0.CaloHit.root");
  chain.Add("/lapp_data/LC/data/TB2012/SPS_H2_may_2012/Production/CaloHits/DHCAL_714372_DHCAL_714372_I2_0.CaloHit.root");
  chain.Add("/lapp_data/LC/data/TB2012/SPS_H2_may_2012/Production/CaloHits/DHCAL_714372_DHCAL_714372_I3_0.CaloHit.root");
  chain.Add("/lapp_data/LC/data/TB2012/SPS_H2_may_2012/Production/CaloHits/DHCAL_714372_DHCAL_714372_I4_0.CaloHit.root");

   TObjArray *fileElements=chain.GetListOfFiles();
   TIter next(fileElements);
   TChainElement *chEl=0;
   while (( chEl=(TChainElement*)next() )) {
      TFile f(chEl->GetTitle());


      TIter nextkey(f.GetListOfKeys());
      TKey *key;
      while (key = (TKey*)nextkey()) 
      {
        TTree *tree = (TTree*)key->ReadObj();                
        cout << tree->GetName() <<endl;
        CaloRun *run=NULL;
        try
        {
          run=dynamic_cast<CaloRun *>(tree->GetUserInfo()->First());
          if ( run != NULL )
          {
            cout << "Run Id: " << run->GetRunId() << endl ;
          }
        }
        catch (...) {}
      
        CaloEvent *evt =  new CaloEvent();
        TBranch *branch= tree->GetBranch("CaloEvent");
        branch->SetAddress(&evt);
        int nbEntries = tree->GetEntries();
        cout << "Nb event:" << nbEntries << endl;

      }
    }
return 1;
}

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