ExtrapolationCache.h

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/*
   Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
 */

// ExtrapolationCache.h
 
#ifndef TRKEXUTILS_EXTRAPOLATIONCACHE_H
#define TRKEXUTILS_EXTRAPOLATIONCACHE_H

 
#include "TrkMaterialOnTrack/EnergyLoss.h"
 
namespace Trk {
 
class Energyloss;
 
class ExtrapolationCache
{
 
public:
  //
  // Constructor
  //
  ExtrapolationCache() = default;
  ExtrapolationCache(const ExtrapolationCache& other) = default;
  ExtrapolationCache(ExtrapolationCache&& other) = default;
  ExtrapolationCache& operator=(const ExtrapolationCache& other) = default;
  ExtrapolationCache& operator=(ExtrapolationCache&& other) = default;
 
  ExtrapolationCache(double x0tot);
  ExtrapolationCache(double x0tot, EnergyLoss* eloss);
  ~ExtrapolationCache() = default;

  ExtrapolationCache* clone() const;
 
  // total X0
  double x0tot() const;
  // total Eloss
  const EnergyLoss* eloss() const;
  // reset to zero
  void reset();
  // add X0 value
  void updateX0(double x0);
  // add Eloss values
  void updateEloss(double ioni, double sigi, double rad, double sigr);
 
private:
  double m_x0tot{};
  EnergyLoss* m_eloss{}; // We do not own this ptr
};
 
}
#include "TrkExUtils/ExtrapolationCache.icc"
#endif