thailand2017/tut_ana_mclist.C File Reference

#include "auxtut.C"

Go to the source code of this file.

Functions
void	tut_ana_mclist (int nevts=0, TString prefix="signal")

Function Documentation

void tut_ana_mclist	(	int	nevts = 0,
		TString	prefix = "signal"
	)

Definition at line 17 of file thailand2017/tut_ana_mclist.C.

References PndAnalysis::FillList(), fRun, PndAnalysis::GetEntries(), PndAnalysis::GetEvent(), RhoCandList::GetLength(), RhoCandidate::GetTrackNumber(), i, initrun(), PndAnalysis::PndAnalysis(), RemoveGeoManager(), and TString.

{
        // *** some variables
        int i=0,j=0, k=0, l=0;
        gStyle->SetOptFit(1011);
        
        // *** Initialize FairRunAna with defaults      
        TString OutFile="out_dummy.root";  
        FairRunAna* fRun = initrun(prefix, OutFile);
        fRun->Init();
        
        //
        // Now the analysis stuff comes...
        //
        
        
        // *** the data reader object
        PndAnalysis* theAnalysis = new PndAnalysis();
        if (nevts==0) nevts= theAnalysis->GetEntries();
        
        // *** RhoCandLists for the analysis
        RhoCandList mctruth;
        
        // ***
        // the event loop
        // ***
        while (theAnalysis->GetEvent() && i++<nevts)
        {
                cout<<"****** Evt " << i << endl;
                
                // *** the MC Truth objects
                theAnalysis->FillList(mctruth,"McTruth");
                
                //
                // Print MC Truth list with mother-daughter relations
                //
                for (j=0;j<mctruth.GetLength();++j)
                {
                        RhoCandidate *mcmother = mctruth[j]->TheMother();
                  
                        int muid = -1;
                        if (mcmother) muid = mcmother->GetTrackNumber();
                  
                        cout << "Track "<< mctruth[j]->GetTrackNumber()<<" (PDG:"<<mctruth[j]->PdgCode() <<") has mother "<<muid;
                  
                        if (mctruth[j]->NDaughters()>0) cout <<" and daughter(s) ";
                        for (k=0;k<mctruth[j]->NDaughters();++k) cout <<mctruth[j]->Daughter(k)->GetTrackNumber()<<"  ";
                  
                        cout<<endl;
                }
                cout <<endl;
        }
        
        // *** temporaty fix to avoid error on macro exit
        RemoveGeoManager();
}