#include <RootChamberReader.h>

Public Member Functions
void	read (edm::PSimHitContainer &hits)
	RootChamberReader (TFile *file, const std::string &treeName)
	RootChamberReader ()
	default ctor, for STL
	~RootChamberReader ()
	writes the tree, and deletes everything
Private Attributes
TClonesArray *	theHits
int	thePosition
int	theSize
TTree *	theTree

Detailed Description

Definition at line 8 of file RootChamberReader.h.

Constructor & Destructor Documentation

RootChamberReader::RootChamberReader ( )

default ctor, for STL

Definition at line 7 of file RootChamberReader.cc.

: theTree(0),
  theHits(0),
  thePosition(0),
  theSize(0)
{
}

RootChamberReader::RootChamberReader	(	TFile *	file,
		const std::string &	treeName
	)

Definition at line 16 of file RootChamberReader.cc.

References theHits, theSize, and theTree.

: theTree( (TTree *) file->Get(treeName.c_str()) ),
  theHits(new TClonesArray("RootSimHit")),
  thePosition(-1),
  theSize(0)
{
  if(theTree != 0) 
  {
    theTree->SetBranchAddress("Hits", &theHits);
    theSize = theTree->GetEntries();
  }
}

RootChamberReader::~RootChamberReader ( )

writes the tree, and deletes everything

Definition at line 30 of file RootChamberReader.cc.

{
//  delete theHits;
//  delete theTree;
}

Member Function Documentation

void RootChamberReader::read ( edm::PSimHitContainer & hits )

Definition at line 37 of file RootChamberReader.cc.

References RootSimHit::get(), LogTrace, GetRecoTauVFromDQM_MC_cff::next, theHits, thePosition, theSize, and theTree.

Referenced by RootNeutronReader::readNextEvent().

{
  // if there's no tree, make no events
  if(theTree != 0 && theSize != 0)
  {
    ++thePosition;
    // start again from the beginning, if needed
    if(thePosition >= theSize) thePosition = 0;
    theTree->GetEntry(thePosition);

    TIter next(theHits);
    RootSimHit * rootHit;
    while( (rootHit = (RootSimHit *) next()) )
    {
      hits.push_back(rootHit->get());
    }
    LogTrace("Neutrons") << "Event " << thePosition << " OF " << theSize 
         << " has " << hits.size() << " hits ";
  }
}