#include <RootChamberReader.h>

Public Member Functions
void	read (edm::PSimHitContainer &hits)

	RootChamberReader ()
	default ctor, for STL More...

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

	~RootChamberReader ()
	writes the tree, and deletes everything More...

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(nullptr),
   theHits(nullptr),
   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 != nullptr) 
   {
     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 != nullptr && 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 ";
   }
 }