GainTool.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ELECTRONPHOTONFOURMOMENTUMCORRECTION_GAINTOOL_H
#define ELECTRONPHOTONFOURMOMENTUMCORRECTION_GAINTOOL_H
 
#include <PATCore/PATCoreEnums.h>
 
#include <memory>
#include <string>
 
class TFile;
class TF1;
 
namespace egGain {
 
class GainTool {
 
 public:
  GainTool(const std::string& filenameTO, const std::string& filenameVar);
  GainTool(const GainTool &) = delete;
  GainTool & operator=(const GainTool &) = delete;
  void Init(const std::string& filenameTO, const std::string& filenameVar);
  virtual ~GainTool();
 
  double CorrectionGainTool(double eta_input, double energy_input,
                            double energy_layer2_input,
                            PATCore::ParticleType::Type ptype =
                                PATCore::ParticleType::Electron) const;
 
 private:
  static const int m_NUM_ETA_BINS = 28;
  static const int m_NUM_ENERGY_BINS = 3;
  static const int m_NUM_UNCONV_ENERGY_BINS = 4;
 
  std::unique_ptr<TFile> m_TOFile;
  std::unique_ptr<TFile> m_varFile;
 
  TF1* m_funcTO[m_NUM_ETA_BINS]{};
  TF1* m_funcG[m_NUM_ENERGY_BINS][m_NUM_ETA_BINS]{};
  TF1* m_conv_funcG[m_NUM_ENERGY_BINS][m_NUM_ETA_BINS]{};
  TF1* m_unconv_funcG[m_NUM_UNCONV_ENERGY_BINS][m_NUM_ETA_BINS]{};
};
 
}  // namespace egGain
#endif