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//
// $Id: G4MagIntegratorDriver.icc,v 1.13 2007/05/10 10:10:48 japost Exp $
// GEANT4 tag $Name: geant4-09-04-beta-01 $
//
// --------------------------------------------------------------------

inline
G4double G4MagInt_Driver::GetHmin() const
{
      return fMinimumStep;
} 

inline
G4double G4MagInt_Driver::Hmin() const
{
      return fMinimumStep;
}

inline
G4double G4MagInt_Driver::GetSafety() const
{
      return safety;
}

inline
G4double G4MagInt_Driver::GetPshrnk() const
{
      return pshrnk;
} 

inline
G4double G4MagInt_Driver::GetPgrow() const
{
      return pgrow;
}
 
inline
G4double G4MagInt_Driver::GetErrcon() const
{
      return errcon;
}

inline
void G4MagInt_Driver::SetHmin(G4double newval)
{
      fMinimumStep = newval;
} 

inline
G4double G4MagInt_Driver::ComputeAndSetErrcon()
{
      errcon = std::pow(max_stepping_increase/GetSafety(),1.0/GetPgrow());
      return errcon;
} 

inline
void G4MagInt_Driver::ReSetParameters(G4double new_safety)
{
      safety = new_safety;
      pshrnk = -1.0 / pIntStepper->IntegratorOrder();
      pgrow  = -1.0 / (1.0 + pIntStepper->IntegratorOrder());
      ComputeAndSetErrcon();
}

inline
void G4MagInt_Driver::SetSafety(G4double val)
{ 
      safety=val;
      ComputeAndSetErrcon();
}

inline
void G4MagInt_Driver::SetPgrow(G4double  val)
{ 
      pgrow=val;
      ComputeAndSetErrcon(); 
}

inline
void G4MagInt_Driver::SetErrcon(G4double val)
{ 
      errcon=val;
}

inline
void G4MagInt_Driver::RenewStepperAndAdjust(G4MagIntegratorStepper *pItsStepper)
{  
      pIntStepper = pItsStepper; 
      ReSetParameters();
}

inline
void G4MagInt_Driver::SetChargeMomentumMass(G4double particleCharge, // e+
                                            G4double MomentumXc,
                                            G4double Mass )
{ 
      pIntStepper->GetEquationOfMotion()
                 ->SetChargeMomentumMass(particleCharge, MomentumXc, Mass); 
}

inline
const G4MagIntegratorStepper* G4MagInt_Driver::GetStepper() const
{
  return pIntStepper;
}

inline
G4int G4MagInt_Driver::GetMaxNoSteps() const
{
  return fMaxNoSteps;
}

inline
void G4MagInt_Driver::SetMaxNoSteps(G4int val)
{
  fMaxNoSteps= val;
}

inline
void G4MagInt_Driver::GetDerivatives(const G4FieldTrack &y_curr, // const, INput
                                           G4double     dydx[])  // OUTput
{ 
  G4double  tmpValArr[G4FieldTrack::ncompSVEC];
  y_curr.DumpToArray( tmpValArr  );
  pIntStepper -> RightHandSide( tmpValArr , dydx );
}

inline
G4double G4MagInt_Driver::GetVerboseLevel() const
{
      return fVerboseLevel;
} 

inline 
void G4MagInt_Driver::SetVerboseLevel(G4int newLevel)
{
      fVerboseLevel= newLevel;
}

inline
G4double G4MagInt_Driver::GetSmallestFraction() const
{
      return fSmallestFraction; 
}