Detector.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 ALICEO2_MFT_DETECTOR_H
#define ALICEO2_MFT_DETECTOR_H
 
#include "TLorentzVector.h"
 
#include <vector> // for vector
#include "DetectorsBase/Detector.h"
#include "DetectorsCommonDataFormats/DetID.h" // for Detector
#include "ITSMFTSimulation/Hit.h"             // for Hit
 
class TVector3;
 
namespace o2
{
namespace itsmft
{
class Hit;
}
} // namespace o2
 
namespace o2
{
namespace mft
{
class GeometryTGeo;
}
} // namespace o2
 
namespace o2
{
namespace mft
{
class Detector : public o2::base::DetImpl<Detector>
{
 public:
  Detector(Bool_t active);
 
  Detector();
 
  ~Detector() override;
 
  void InitializeO2Detector() override;
 
  Bool_t ProcessHits(FairVolume* v = nullptr) override;
 
  void Reset() override;
 
  void Register() override;
 
  std::vector<o2::itsmft::Hit>* getHits(Int_t iColl) const
  {
    if (iColl == 0) {
      return mHits;
    }
    return nullptr;
  }
 
  void EndOfEvent() override;
 
  void FinishPrimary() override { ; }
  void FinishRun() override { ; }
  void BeginPrimary() override { ; }
  void PostTrack() override { ; }
  void PreTrack() override { ; }
  void ConstructGeometry() override; // inherited from FairModule
 
  void addAlignableVolumes() const override;
 
  void addAlignableVolumesHalf(Int_t hf, TString& parent, Int_t& lastUID) const;
 
  void addAlignableVolumesDisk(Int_t hf, Int_t dk, TString& parent, Int_t& lastUID) const;
 
  void addAlignableVolumesLadder(Int_t hf, Int_t dk, Int_t lr, TString& parent, Int_t& lastUID) const;
 
  void addAlignableVolumesChip(Int_t hf, Int_t dk, Int_t lr, Int_t ms, TString& parent, Int_t& lastUID) const;
 
  Int_t isVersion() const { return mVersion; }
 
  void createMaterials();
  void setDensitySupportOverSi(Double_t density)
  {
    if (density > 1e-6) {
      mDensitySupportOverSi = density;
    } else {
      mDensitySupportOverSi = 1e-6;
    }
  }
 
  void createGeometry();
  void defineSensitiveVolumes();
 
  GeometryTGeo* mGeometryTGeo; 
 
 protected:
  Int_t mVersion;                 //
  Double_t mDensitySupportOverSi; //
 
 private:
  std::vector<o2::itsmft::Hit>* mHits;
 
  Detector(const Detector&);
  Detector& operator=(const Detector&);
 
  o2::itsmft::Hit* addHit(int trackID, int detID, TVector3 startPos, TVector3 endPos, TVector3 startMom, double startE,
                          double endTime, double eLoss, unsigned char startStatus, unsigned char endStatus);
 
  struct TrackData {               // this is transient
    bool mHitStarted;              
    unsigned char mTrkStatusStart; 
    TLorentzVector mPositionStart; 
    TLorentzVector mMomentumStart; 
    double mEnergyLoss;            
  } mTrackData;                    
 
  template <typename Det>
  friend class o2::base::DetImpl;
  ClassDefOverride(Detector, 1);
};
 
// Input and output function for standard C++ input/output.
std::ostream& operator<<(std::ostream& os, Detector& source);
std::istream& operator>>(std::istream& os, Detector& source);
} // namespace mft
} // namespace o2
 
#ifdef USESHM
namespace o2
{
namespace base
{
template <>
struct UseShm<o2::mft::Detector> {
  static constexpr bool value = true;
};
} // namespace base
} // namespace o2
#endif
 
#endif