AccumulatedMaterialSlab.hpp

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// This file is part of the Acts project.
//
// Copyright (C) 2018-2020 CERN for the benefit of the Acts project
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#pragma once

#include "Acts/Material/MaterialSlab.hpp"

namespace Acts {

class AccumulatedMaterialSlab {
 public:
  // this class does not have a custom default constructor and thus should not
  // provide any custom default cstors, dstor, or assignment. see ISOCPP C.20.

  void accumulate(MaterialSlab slabAlongTrack, float pathCorrection = 1);

  void trackAverage(bool useEmptyTrack = false);

  std::pair<MaterialSlab, unsigned int> totalAverage() const;

 private:
  MaterialSlab m_trackAverage;
  MaterialSlab m_totalAverage;
  // Number of tracks contributing to the total average.
  unsigned int m_totalCount = 0u;
};

}  // namespace Acts