MathiesonOriginal.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_MATHIESONORIGINAL_H_
#define O2_MCH_MATHIESONORIGINAL_H_
 
namespace o2
{
namespace mch
{
 
class MathiesonOriginal
{
 public:
  MathiesonOriginal() = default;
  ~MathiesonOriginal() = default;
 
  MathiesonOriginal(const MathiesonOriginal& cl) = default;
  MathiesonOriginal& operator=(const MathiesonOriginal& cl) = default;
  MathiesonOriginal(MathiesonOriginal&&) = default;
  MathiesonOriginal& operator=(MathiesonOriginal&&) = default;
 
  void setPitch(float pitch) { mInversePitch = (pitch > 0.) ? 1. / pitch : 0.; }
 
  void setSqrtKx3AndDeriveKx2Kx4(float sqrtKx3);
  void setSqrtKy3AndDeriveKy2Ky4(float sqrtKy3);
 
  float integrate(float xMin, float yMin, float xMax, float yMax) const;
 
 private:
  float mSqrtKx3 = 0.;      
  float mKx2 = 0.;          
  float mKx4 = 0.;          
  float mSqrtKy3 = 0.;      
  float mKy2 = 0.;          
  float mKy4 = 0.;          
  float mInversePitch = 0.; 
};
 
} // namespace mch
} // namespace o2
 
#endif // O2_MCH_MATHIESONORIGINAL_H_