Digit.cxx

Go to the documentation of this file.

// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#include "TOFBase/Digit.h"
 
#include <iostream>
 
using namespace o2::tof;
 
ClassImp(o2::tof::Digit);
 
Digit::Digit(Int_t channel, Int_t tdc, Int_t tot, uint64_t bc, Int_t label, uint32_t triggerorbit, uint16_t triggerbunch, float geanttime, double t0)
  : mChannel(channel), mTDC(tdc), mTOT(tot), mIR(0, 0), mLabel(label), mTriggerOrbit(triggerorbit), mTriggerBunch(triggerbunch), mIsUsedInCluster(kFALSE), mTgeant(geanttime), mT0true(t0)
{
  mIR.setFromLong(bc);
}
//______________________________________________________________________
Digit::Digit(Int_t channel, Int_t tdc, Int_t tot, uint32_t orbit, uint16_t bc, Int_t label, uint32_t triggerorbit, uint16_t triggerbunch, float geanttime, double t0)
  : mChannel(channel), mTDC(tdc), mTOT(tot), mIR(bc, orbit), mLabel(label), mTriggerOrbit(triggerorbit), mTriggerBunch(triggerbunch), mIsUsedInCluster(kFALSE), mTgeant(geanttime), mT0true(t0)
{
}
//______________________________________________________________________
 
void Digit::printStream(std::ostream& stream) const
{
  stream << "TOF Digit: Channel " << mChannel << " TDC " << mTDC << " TOT " << mTOT << "Bunch Crossing index" << mIR.toLong() << " Label " << mLabel << "\n";
}
 
//______________________________________________________________________
 
std::ostream& operator<<(std::ostream& stream, const Digit& digi)
{
  digi.printStream(stream);
  return stream;
}
 
//______________________________________________________________________
 
bool Digit::merge(Int_t tdc, Int_t tot)
{
 
  // merging two digits
 
  if (tdc < mTDC) {
    mTDC = tdc;
    return 1; // new came first
    // TODO: adjust TOT
  } else {
    // TODO: adjust TOT
    return 0;
  }
}
 
//______________________________________________________________________
 
void Digit::getPhiAndEtaIndex(int& phi, int& eta) const
{
 
  // method that returns the index in phi and eta of the digit
 
  int chan;
  int detId[5];
  chan = getChannel();                // note that inside the strip the digits are ordered per channel number
  Geo::getVolumeIndices(chan, detId); // Get volume index from channel index
  eta = detId[2] /*strip*/ * 2 + detId[3] /*pad Z*/;
  if (detId[1] /*module*/ == 0) {
    eta += 0;
  } else if (detId[1] == 1) {
    eta += 38;
  } else if (detId[1] == 2) {
    eta += 76;
  } else if (detId[1] == 3) {
    eta += 106;
  } else if (detId[1] == 4) {
    eta += 144;
  }
  phi = detId[0] /*phi sector*/ * 48 + detId[4] /*pad x*/;
 
  return;
}