PndCATrackLinearisation.h

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//****************************************************************************
//*                   This file is part of PandaRoot.                        *
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//*            PandaRoot is distributed under the terms of the               *
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// ************************************************************************
// This file is property of and copyright by the ALICE HLT Project        *
// ALICE Experiment at CERN, All rights reserved.                         *
// See cxx source for full Copyright notice                               *
//                                                                        *
//*************************************************************************

#ifndef PNDCATRACKLINEARISATION_H
#define PNDCATRACKLINEARISATION_H

#include "PndCATrackParam.h"

class PndCATrackLinearisation {
 public:
  PndCATrackLinearisation() : fSinPhi(0), fCosPhi(1), fDzDs(0), fQPt(0) {}

  PndCATrackLinearisation(float SinPhi1, float CosPhi1, float DzDs1, float QPt1) : fSinPhi(SinPhi1), fCosPhi(CosPhi1), fDzDs(DzDs1), fQPt(QPt1) {}

  PndCATrackLinearisation(const PndCATrackParam &t);

  void Set(float SinPhi1, float CosPhi1, float DzDs1, float QPt1);

  float SinPhi() const { return fSinPhi; }
  float CosPhi() const { return fCosPhi; }
  float DzDs() const { return fDzDs; }
  float QPt() const { return fQPt; }

  float GetSinPhi() const { return fSinPhi; }
  float GetCosPhi() const { return fCosPhi; }
  float GetDzDs() const { return fDzDs; }
  float GetQPt() const { return fQPt; }

  void SetSinPhi(float v) { fSinPhi = v; }
  void SetCosPhi(float v) { fCosPhi = v; }
  void SetDzDs(float v) { fDzDs = v; }
  void SetQPt(float v) { fQPt = v; }

 private:
  float fSinPhi; // SinPhi
  float fCosPhi; // CosPhi
  float fDzDs;   // DzDs
  float fQPt;    // QPt
};

inline PndCATrackLinearisation::PndCATrackLinearisation(const PndCATrackParam &t)
  : fSinPhi(CAMath::Min(.999f, CAMath::Max(-.999f, t.SinPhi()))), fCosPhi(t.SignCosPhi() * CAMath::Sqrt(1.f - fSinPhi * fSinPhi)), fDzDs(t.DzDs()), fQPt(t.QPt())
{
}

inline void PndCATrackLinearisation::Set(float SinPhi1, float CosPhi1, float DzDs1, float QPt1)
{
  SetSinPhi(SinPhi1);
  SetCosPhi(CosPhi1);
  SetDzDs(DzDs1);
  SetQPt(QPt1);
}

#endif