PndJPsiExample Class Reference

#include <PndJPsiExample.h>

Inheritance diagram for PndJPsiExample:

Public Types
typedef std::map< Int_t, Float_t >	mapper

Public Member Functions
	PndJPsiExample ()
	~PndJPsiExample ()
virtual InitStatus	Init ()
virtual void	Exec (Option_t *opt)
virtual void	Finish ()

Protected Attributes
TLorentzVector	track1
TLorentzVector	track2
TH1D *	fInvMass

Private Member Functions
virtual void	SetParContainers ()
	ClassDef (PndJPsiExample, 1)

Private Attributes
TClonesArray *	fTrArray

Detailed Description

Definition at line 17 of file PndJPsiExample.h.

Member Typedef Documentation

typedef std::map<Int_t, Float_t> PndJPsiExample::mapper

Definition at line 21 of file PndJPsiExample.h.

Constructor & Destructor Documentation

PndJPsiExample::PndJPsiExample

(

)

Default constructor

Definition at line 22 of file PndJPsiExample.cxx.

                               :
  FairTask("FastSim Dump") { 
}

PndJPsiExample::~PndJPsiExample

(

)

Destructor

Definition at line 28 of file PndJPsiExample.cxx.

{ }

Member Function Documentation

PndJPsiExample::ClassDef ( PndJPsiExample  , 1    )

private

void PndJPsiExample::Exec ( Option_t *  opt )

virtual

Virtual method Exec

Definition at line 81 of file PndJPsiExample.cxx.

References fInvMass, fTrArray, track1, and track2.

                                   {
  
  // Reset output array
  Int_t nTracks = fTrArray->GetEntriesFast();

  //  cout <<"number of tracks **** "<< nTracks <<endl;
  
  for (Int_t i1=0; i1<nTracks; i1++){
    
    // Get the Tpc Track information
    PndLheCandidate *tr1 = (PndLheCandidate*)fTrArray->At(i1);    
    track1.SetXYZM(tr1->GetPx(), tr1->GetPy(), tr1->GetPz(), 0.000511);

    for (Int_t i2=0; i2<nTracks; i2++){
      PndLheCandidate *tr2 = (PndLheCandidate*)fTrArray->At(i2);    

      track2.SetXYZM(tr2->GetPx(), tr2->GetPy(), tr2->GetPz(), 0.000511);
      
      TLorentzVector sumTrack = track1 + track2;

     fInvMass->Fill(sumTrack.M());

    }
    
  }

}

void PndJPsiExample::Finish ( )

virtual

Definition at line 110 of file PndJPsiExample.cxx.

References fInvMass.

{
  fInvMass->Write();
}

InitStatus PndJPsiExample::Init ( )

virtual

Virtual method Init

Definition at line 34 of file PndJPsiExample.cxx.

References fInvMass, and fTrArray.

                                {
 
  cout << " Inside the Init function****" << endl;
  
  //FairDetector::Initialize();
  //FairRun* sim = FairRun::Instance();
  //FairRuntimeDb* rtdb=sim->GetRuntimeDb();
  
  // Get RootManager
  FairRootManager* ioman = FairRootManager::Instance();
  if ( ! ioman ) {
    cout << "-E- PndEmcHitProducer::Init: "
         << "RootManager not instantiated!" << endl;
    return kFATAL;
  }
  // Get input array
  fTrArray = (TClonesArray*) ioman->GetObject("LheCandidate");
  if ( ! fTrArray) {
    cout << "-W- PndJPsiExample::Init: "
         << "No TpcTrack array!" << endl;
    return kERROR;
  }

  // Create and register output array
  cout << "-I- PndJPsiExample: Intialization successfull" << endl;

  fInvMass = new TH1D("invmass","",100,0.0,4.0);
  
  return kSUCCESS;

}

void PndJPsiExample::SetParContainers ( )

privatevirtual

Geo file to use Get parameter containers

Definition at line 66 of file PndJPsiExample.cxx.

References run.

                                      {

  // Get run and runtime database
  FairRunAna* run = FairRunAna::Instance();
  if ( ! run ) Fatal("SetParContainers", "No analysis run");

  FairRuntimeDb* db = run->GetRuntimeDb();
  if ( ! db ) Fatal("SetParContainers", "No runtime database");

 
}

Member Data Documentation

TH1D* PndJPsiExample::fInvMass

protected

book all the histograms

Definition at line 47 of file PndJPsiExample.h.

Referenced by Exec(), Finish(), and Init().

TClonesArray* PndJPsiExample::fTrArray

private

Input array of LheTrack

Definition at line 52 of file PndJPsiExample.h.

Referenced by Exec(), and Init().

TLorentzVector PndJPsiExample::track1

protected

Definition at line 43 of file PndJPsiExample.h.

Referenced by Exec().

TLorentzVector PndJPsiExample::track2

protected

Definition at line 44 of file PndJPsiExample.h.

Referenced by Exec().

---

The documentation for this class was generated from the following files:

• PndJPsiExample.h
• PndJPsiExample.cxx