#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() [1/2]

RootChamberReader::RootChamberReader ( )

default ctor, for STL

Definition at line 7 of file RootChamberReader.cc.

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

◆ RootChamberReader() [2/2]

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

Definition at line 9 of file RootChamberReader.cc.

     : 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();
   }
 }

References theHits, theSize, and theTree.

◆ ~RootChamberReader()

RootChamberReader::~RootChamberReader ( )

writes the tree, and deletes everything

Definition at line 20 of file RootChamberReader.cc.

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

Member Function Documentation

◆ read()

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

Definition at line 25 of file RootChamberReader.cc.

                                                       {
   // 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 ";
   }
 }