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geant4/source/geometry/magneticfield/include/G4FieldTrack.icc
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2018-12-07 15:15:39 +01:00

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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 *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * 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 *
// * for the full disclaimer and the limitation of liability. *
// * *
// * 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 *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
//
// -------------------------------------------------------------------
inline
G4FieldTrack::G4FieldTrack( const G4FieldTrack& rStVec )
: fDistanceAlongCurve( rStVec.fDistanceAlongCurve),
fKineticEnergy( rStVec.fKineticEnergy ),
fRestMass_c2( rStVec.fRestMass_c2),
fLabTimeOfFlight( rStVec.fLabTimeOfFlight ),
fProperTimeOfFlight( rStVec.fProperTimeOfFlight ),
// fMomentumModulus( rStVec.fMomentumModulus ),
fPolarization( rStVec.fPolarization ),
fMomentumDir( rStVec.fMomentumDir ),
fChargeState( rStVec.fChargeState )
{
SixVector[0]= rStVec.SixVector[0];
SixVector[1]= rStVec.SixVector[1];
SixVector[2]= rStVec.SixVector[2];
SixVector[3]= rStVec.SixVector[3];
SixVector[4]= rStVec.SixVector[4];
SixVector[5]= rStVec.SixVector[5];
// fpChargeState= new G4ChargeState( *rStVec.fpChargeState );
// Can share charge state only when using handles etc
// fpChargeState = rStVec.fpChargeState;
}
inline
G4FieldTrack::~G4FieldTrack()
{
// delete fpChargeState;
}
inline G4FieldTrack&
G4FieldTrack::SetCurvePnt(const G4ThreeVector& pPosition,
const G4ThreeVector& pMomentum,
G4double s_curve )
{
SixVector[0] = pPosition.x();
SixVector[1] = pPosition.y();
SixVector[2] = pPosition.z();
SixVector[3] = pMomentum.x();
SixVector[4] = pMomentum.y();
SixVector[5] = pMomentum.z();
fMomentumDir = (pMomentum.mag2() > 0.0) ?
pMomentum.unit() : G4ThreeVector( 0.0, 0.0, 0.0 );
fDistanceAlongCurve= s_curve;
return *this;
}
inline
G4ThreeVector G4FieldTrack::GetPosition() const
{
G4ThreeVector myPosition( SixVector[0], SixVector[1], SixVector[2] );
return myPosition;
}
inline
void G4FieldTrack::SetPosition( G4ThreeVector pPosition)
{
SixVector[0] = pPosition.x();
SixVector[1] = pPosition.y();
SixVector[2] = pPosition.z();
}
inline
const G4ThreeVector& G4FieldTrack::GetMomentumDir() const
{
// G4ThreeVector myMomentum( SixVector[3], SixVector[4], SixVector[5] );
// return myVelocity;
return fMomentumDir;
}
inline
G4ThreeVector G4FieldTrack::GetMomentumDirection() const
{
return fMomentumDir;
}
inline
G4double G4FieldTrack::GetCurveLength() const
{
return fDistanceAlongCurve;
}
inline
void G4FieldTrack::SetCurveLength(G4double nCurve_s)
{
fDistanceAlongCurve= nCurve_s;
}
inline
G4double G4FieldTrack::GetKineticEnergy() const
{
return fKineticEnergy;
}
inline
void G4FieldTrack::SetKineticEnergy(G4double newKinEnergy)
{
fKineticEnergy=newKinEnergy;
}
inline
G4ThreeVector G4FieldTrack::GetPolarization() const
{
return fPolarization;
}
inline
void G4FieldTrack::SetPolarization(const G4ThreeVector& vecPlz)
{
fPolarization= vecPlz;
}
inline
G4double G4FieldTrack::GetLabTimeOfFlight() const
{
return fLabTimeOfFlight;
}
inline
void G4FieldTrack::SetLabTimeOfFlight(G4double nTOF)
{
fLabTimeOfFlight=nTOF;
}
inline
G4double G4FieldTrack::GetProperTimeOfFlight() const
{
return fProperTimeOfFlight;
}
inline
void G4FieldTrack::SetProperTimeOfFlight(G4double nTOF)
{
fProperTimeOfFlight=nTOF;
}
inline
void G4FieldTrack::SetMomentumDir(G4ThreeVector newMomDir)
{
fMomentumDir= newMomDir;
}
inline
G4ThreeVector G4FieldTrack::GetMomentum() const
{
return G4ThreeVector( SixVector[3], SixVector[4], SixVector[5] );
}
inline
void G4FieldTrack::SetMomentum(G4ThreeVector pMomentum)
{
SixVector[3] = pMomentum.x();
SixVector[4] = pMomentum.y();
SixVector[5] = pMomentum.z();
if( pMomentum.mag2() > 0.0 )
fMomentumDir = pMomentum.unit();
else
fMomentumDir = G4ThreeVector( 0.0, 0.0, 0.0 );
}
inline
G4double G4FieldTrack::GetCharge() const
{
return fChargeState.GetCharge();
}
// Dump values to array
//
// note that momentum direction is not saved
inline
void G4FieldTrack::DumpToArray(G4double valArr[ncompSVEC] ) const
{
valArr[0]=SixVector[0];
valArr[1]=SixVector[1];
valArr[2]=SixVector[2];
valArr[3]=SixVector[3];
valArr[4]=SixVector[4];
valArr[5]=SixVector[5];
G4ThreeVector Momentum(valArr[3],valArr[4],valArr[5]);
// G4double mass_in_Kg;
// mass_in_Kg = fEnergy / velocity_mag_sq * (1-velocity_mag_sq/c_squared);
// valArr[6]= mass_in_Kg;
// The following components may or may not be integrated.
valArr[6]= fKineticEnergy;
// valArr[6]=fEnergy; // When it is integrated over, do this ...
valArr[7]=fLabTimeOfFlight;
valArr[8]=fProperTimeOfFlight;
valArr[9]=fPolarization.x();
valArr[10]=fPolarization.y();
valArr[11]=fPolarization.z();
// valArr[13]=fMomentumDir.x();
// valArr[14]=fMomentumDir.y();
// valArr[15]=fMomentumDir.z();
// valArr[]=fDistanceAlongCurve;
}
inline
G4FieldTrack & G4FieldTrack::operator = ( const G4FieldTrack& rStVec )
{
if (&rStVec == this) return *this;
SixVector[0]= rStVec.SixVector[0];
SixVector[1]= rStVec.SixVector[1];
SixVector[2]= rStVec.SixVector[2];
SixVector[3]= rStVec.SixVector[3];
SixVector[4]= rStVec.SixVector[4];
SixVector[5]= rStVec.SixVector[5];
SetCurveLength( rStVec.GetCurveLength() );
fKineticEnergy= rStVec.fKineticEnergy;
fRestMass_c2= rStVec.fRestMass_c2;
SetLabTimeOfFlight( rStVec.GetLabTimeOfFlight() );
SetProperTimeOfFlight( rStVec.GetProperTimeOfFlight() );
SetPolarization( rStVec.GetPolarization() );
fMomentumDir= rStVec.fMomentumDir;
fChargeState= rStVec.fChargeState;
// (*fpChargeState)= *(rStVec.fpChargeState);
// fpChargeState= rStVec.fpChargeState; // Handles!!
return *this;
}
inline void
G4FieldTrack::UpdateFourMomentum( G4double kineticEnergy,
const G4ThreeVector& momentumDirection )
{
G4double momentum_mag = std::sqrt(kineticEnergy*kineticEnergy
+2.0*fRestMass_c2*kineticEnergy);
G4ThreeVector momentumVector= momentum_mag * momentumDirection;
// SetMomentum( momentumVector ); // Set direction (from unit): used sqrt, div
SixVector[3] = momentumVector.x();
SixVector[4] = momentumVector.y();
SixVector[5] = momentumVector.z();
fMomentumDir= momentumDirection; // Set directly to avoid inaccuracy.
fKineticEnergy= kineticEnergy;
}
inline void G4FieldTrack::UpdateState( const G4ThreeVector& position,
G4double laboratoryTimeOfFlight,
const G4ThreeVector& momentumDirection,
G4double kineticEnergy
)
{
// SetCurvePnt( position, momentumVector, s_curve=0.0);
SetPosition( position);
fLabTimeOfFlight= laboratoryTimeOfFlight;
fDistanceAlongCurve= 0.0;
UpdateFourMomentum( kineticEnergy, momentumDirection);
}