GGSTMCTruthReader Class Reference

Class for reading output of GGSMCTruthAction. More...

#include <GGSTMCTruthReader.h>

Inheritance diagram for GGSTMCTruthReader:

Collaboration diagram for GGSTMCTruthReader:

Public Member Functions
	GGSTMCTruthReader ()
	Constructor.
	~GGSTMCTruthReader ()
	Destructor.
bool	SetChain (TChain *mcTruthChain)
	Sets the chain. More...
void	GetEntry (Long64_t entry)
GGSTParticle *	GetPrimaryParticle (UInt_t particleNumber)
	Returns a primary particle. More...
UInt_t	GetNPrimaries ()
	Returns the number of primaries in current event. More...
UInt_t	GetNDiscarded ()
	Returns the number of discarded events before the current one. More...
Public Member Functions inherited from GGSTChainReader
virtual	~GGSTChainReader ()
	Destructor.

Detailed Description

Class for reading output of GGSMCTruthAction.

This class provides methods to read the information about MC truth as saved by GGSMCTruthAction.

Definition at line 25 of file GGSTMCTruthReader.h.

Member Function Documentation

void GGSTMCTruthReader::GetEntry ( Long64_t  entry )

virtual

@ brief Reads the specified entry from the MC truth branch.

Parameters

entry

The desired entry.

Implements GGSTChainReader.

Definition at line 33 of file GGSTMCTruthReader.cpp.

                                               {
  if (entry != _mcTruthChain->GetEntries()) {
    _mcTruthChain->GetEntry(entry);
  }
}

UInt_t GGSTMCTruthReader::GetNDiscarded ( )

inline

Returns the number of discarded events before the current one.

Returns

The number of discarded events

See Also

GGSTMCTruthInfo::nDiscarded

Definition at line 76 of file GGSTMCTruthReader.h.

                         {
    if (_mcTruthInfo)
      return _mcTruthInfo->nDiscarded;
    else
      return 0;
  }

UInt_t GGSTMCTruthReader::GetNPrimaries ( )

inline

Returns the number of primaries in current event.

Returns

The number of primaries

Definition at line 64 of file GGSTMCTruthReader.h.

                         {
    if (_mcTruthInfo)
      return _mcTruthInfo->GetNPrimaries();
    else
      return 0;
  }

GGSTParticle* GGSTMCTruthReader::GetPrimaryParticle ( UInt_t  particleNumber )

inline

Returns a primary particle.

Parameters

particleNumber

The particle to retrieve.

Returns

Pointer to primary particle.

Definition at line 53 of file GGSTMCTruthReader.h.

                                                          {
    if (_mcTruthInfo)
      return _mcTruthInfo->GetPrimaryParticle(particleNumber);
    else
      return NULL;
  }

bool GGSTMCTruthReader::SetChain ( TChain *  mcTruthChain )

virtual

Sets the chain.

This method sets the MC truth chain, from which the informations will be read.

Parameters

mcTruthChain

The chain containing the MC truth.

Implements GGSTChainReader.

Definition at line 22 of file GGSTMCTruthReader.cpp.

                                                     {

  _mcTruthChain = mcTruthChain;
  if (_mcTruthChain->SetBranchAddress("mcTruthInfo", &_mcTruthInfo) == 0) {
    return true;
  } else
    return false;
}

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

• GGSTMCTruthReader.h
• GGSTMCTruthReader.cpp