RootChamberReader Class Reference

#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 9 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 20 of file RootChamberReader.cc.

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

Member Function Documentation

void RootChamberReader::read

(

edm::PSimHitContainer &

hits

)

Definition at line 25 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 ";
  }
}

Member Data Documentation

TClonesArray* RootChamberReader::theHits

private

Definition at line 20 of file RootChamberReader.h.

Referenced by read(), and RootChamberReader().

int RootChamberReader::thePosition

private

Definition at line 21 of file RootChamberReader.h.

Referenced by read().

int RootChamberReader::theSize

private

Definition at line 22 of file RootChamberReader.h.

Referenced by read(), and RootChamberReader().

TTree* RootChamberReader::theTree

private

Definition at line 19 of file RootChamberReader.h.

Referenced by read(), and RootChamberReader().