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geant4/source/geometry/magneticfield/include/G4MagIntegratorDriver.icc
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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
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// * include a list of copyright holders. *
// * *
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// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
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// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
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// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
// $Id: G4MagIntegratorDriver.icc,v 1.13 2007/05/10 10:10:48 japost Exp $
// GEANT4 tag $Name: geant4-08-03 $
//
// --------------------------------------------------------------------
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;
}