Digitizer.h

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// 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.
 
#ifndef O2_MCH_SIMULATION_DIGITIZER_H
#define O2_MCH_SIMULATION_DIGITIZER_H
 
#include <map>
#include <memory>
#include <random>
 
#include <gsl/span>
 
#include "DataFormatsMCH/Digit.h"
#include "DataFormatsMCH/ROFRecord.h"
#include "CommonDataFormat/InteractionRecord.h"
#include "MCHGeometryTransformer/Transformations.h"
#include "MCHSimulation/Hit.h"
#include "MCHSimulation/DEDigitizer.h"
#include "SimulationDataFormat/MCCompLabel.h"
#include "SimulationDataFormat/MCTruthContainer.h"
 
namespace o2::mch
{
class Digitizer
{
 public:
  Digitizer(geo::TransformationCreator transformationCreator);
 
  void setFirstTFOrbit(uint32_t firstTFOrbit);
 
  void processHits(gsl::span<const Hit> hits, const InteractionRecord& collisionTime, int evID, int srcID);
 
  void addNoise(const InteractionRecord& firstIR, const InteractionRecord& lastIR);
 
  size_t digitize(std::vector<ROFRecord>& rofs, std::vector<Digit>& digits, dataformats::MCLabelContainer& labels);
 
  void clear();
 
 private:
  std::mt19937 mRandom; 
 
  std::map<int, std::unique_ptr<DEDigitizer>> mDEDigitizers; 
};
 
} // namespace o2::mch
#endif