G4FieldTrack.cc

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// $Id: G4FieldTrack.cc 66356 2012-12-18 09:02:32Z gcosmo $
//
// -------------------------------------------------------------------

#include "G4FieldTrack.hh"

std::ostream& operator<<( std::ostream& os, const G4FieldTrack& SixVec)
{
     const G4double *SixV = SixVec.SixVector;
     os << " ( ";
     os << " X= " << SixV[0] << " " << SixV[1] << " "
                  << SixV[2] << " ";  // Position
     os << " V= " << SixV[3] << " " << SixV[4] << " "
                  << SixV[5] << " ";  // Momentum
     os << " v2= "
        << G4ThreeVector(SixV[3], SixV[4], SixV[5]).mag(); // mom magnitude
     os << " mdm= " << SixVec.fMomentumDir.mag(); 
     os << " l= " << SixVec.GetCurveLength();
     os << " ) ";
     return os;
}

G4FieldTrack::G4FieldTrack( const G4ThreeVector& pPosition, 
                      G4double       LaboratoryTimeOfFlight,
                const G4ThreeVector& pMomentumDirection,
                      G4double       kineticEnergy,
                      G4double       restMass_c2,
                          G4double       charge, 
                const G4ThreeVector& Spin,
                      G4double       magnetic_dipole_moment,
                      G4double       curve_length )
:  fDistanceAlongCurve(curve_length),
   fKineticEnergy(kineticEnergy),
   fRestMass_c2(restMass_c2),
   fLabTimeOfFlight(LaboratoryTimeOfFlight), 
   fProperTimeOfFlight(0.),
   // fMomentumDir(pMomentumDirection),
   fChargeState(  charge, magnetic_dipole_moment ) 
{
  UpdateFourMomentum( kineticEnergy, pMomentumDirection ); 
      // Sets momentum direction as well.

  SetPosition( pPosition ); 

  InitialiseSpin( Spin ); 
}

G4FieldTrack::G4FieldTrack( const G4ThreeVector& pPosition, 
                            const G4ThreeVector& pMomentumDirection,    
                                  G4double       curve_length, 
                                  G4double       kineticEnergy,
                            const G4double       restMass_c2,
                                  G4double,   // velocity
                                  G4double       pLaboratoryTimeOfFlight,
                                  G4double       pProperTimeOfFlight,
                            const G4ThreeVector* pSpin)
 : fDistanceAlongCurve(curve_length),
   fKineticEnergy(kineticEnergy),
   fRestMass_c2(restMass_c2),
   fLabTimeOfFlight(pLaboratoryTimeOfFlight), 
   fProperTimeOfFlight(pProperTimeOfFlight),
   // fMomentumDir(pMomentumDirection), 
   fChargeState( DBL_MAX ) //  charge not set 
{
  UpdateFourMomentum( kineticEnergy, pMomentumDirection ); 
      // Sets momentum direction as well.
    
  SetPosition( pPosition );    
   
  G4ThreeVector Spin(0.0, 0.0, 0.0); 
  if( pSpin )   Spin= *pSpin;
  InitialiseSpin( Spin ); 
}

G4FieldTrack::G4FieldTrack( char )                  //  Nothing is set !!
  : fKineticEnergy(0.), fRestMass_c2(0.), fLabTimeOfFlight(0.),
    fProperTimeOfFlight(0.), fChargeState( DBL_MAX )
{
  G4ThreeVector Zero(0.0, 0.0, 0.0);
  SetCurvePnt( Zero, Zero, 0.0 );
  InitialiseSpin( Zero ); 
  // fInitialMomentumMag= 0.00; // Invalid
  // fLastMomentumMag= 0.0; 
}

void G4FieldTrack::
     SetChargeAndMoments(G4double charge, 
             G4double magnetic_dipole_moment, // default= DBL_MAX - do not change
             G4double electric_dipole_moment, //   ditto
             G4double magnetic_charge )       //   ditto
{
  fChargeState.SetChargeAndMoments( charge,  magnetic_dipole_moment, 
              electric_dipole_moment,  magnetic_charge ); 

  // fpChargeState->SetChargeAndMoments( charge,  magnetic_dipole_moment, 
  //          electric_dipole_moment,  magnetic_charge ); 

  // TO-DO: Improve the implementation using handles
  //   -- and handle to the old one (which can be shared by other copies) and
  //      must not be left to hang loose 
  // 
  // fpChargeState= new G4ChargeState(  charge, magnetic_dipole_moment, 
  //                 electric_dipole_moment, magnetic_charge  ); 
}