G4ErrorSurfaceTrajState Class Reference

#include <G4ErrorSurfaceTrajState.hh>

Inheritance diagram for G4ErrorSurfaceTrajState:

Collaboration diagram for G4ErrorSurfaceTrajState:

Public Member Functions
	G4ErrorSurfaceTrajState (const G4String &partType, const G4Point3D &pos, const G4Vector3D &mom, const G4Plane3D &plane, const G4ErrorTrajErr &errmat=G4ErrorTrajErr(5, 0))
	G4ErrorSurfaceTrajState (const G4String &partType, const G4Point3D &pos, const G4Vector3D &mom, const G4Vector3D &vecV, const G4Vector3D &vecW, const G4ErrorTrajErr &errmat=G4ErrorTrajErr(5, 0))
	G4ErrorSurfaceTrajState (G4ErrorFreeTrajState &tpSC, const G4Plane3D &plane)
	G4ErrorSurfaceTrajState (G4ErrorFreeTrajState &tpSC, const G4Vector3D &vecV, const G4Vector3D &vecW, G4ErrorMatrix &transfM)
	~G4ErrorSurfaceTrajState ()
G4ErrorMatrix	BuildErrorMatrix (G4ErrorFreeTrajState &tpSC, const G4Vector3D &vecV, const G4Vector3D &vecW)
virtual void	Dump (std::ostream &out=G4cout) const
G4ErrorSurfaceTrajParam	GetParameters () const
void	SetParameters (const G4Point3D &pos, const G4Vector3D &mom, const G4Vector3D &vecV, const G4Vector3D &vecW)
void	SetParameters (const G4Point3D &pos, const G4Vector3D &mom, const G4Plane3D &plane)
G4Vector3D	GetVectorV () const
G4Vector3D	GetVectorW () const
virtual void	SetPosition (const G4Point3D pos)
virtual void	SetMomentum (const G4Vector3D &mom)
Public Member Functions inherited from G4ErrorTrajState
	G4ErrorTrajState ()
	G4ErrorTrajState (const G4String &partType, const G4Point3D &pos, const G4Vector3D &mom, const G4ErrorTrajErr &errmat=G4ErrorTrajErr(5, 0))
virtual	~G4ErrorTrajState ()
void	SetData (const G4String &partType, const G4Point3D &pos, const G4Vector3D &mom)
void	BuildCharge ()
virtual G4int	PropagateError (const G4Track *)
virtual G4int	Update (const G4Track *)
void	UpdatePosMom (const G4Point3D &pos, const G4Vector3D &mom)
void	DumpPosMomError (std::ostream &out=G4cout) const
const G4String &	GetParticleType () const
void	SetParticleType (const G4String &partType)
G4Point3D	GetPosition () const
G4Vector3D	GetMomentum () const
G4ErrorTrajErr	GetError () const
virtual void	SetError (G4ErrorTrajErr em)
G4Track *	GetG4Track () const
void	SetG4Track (G4Track *trk)
G4double	GetCharge () const
void	SetCharge (G4double ch)
virtual G4eTSType	GetTSType () const

Friends
std::ostream &	operator<< (std::ostream &, const G4ErrorSurfaceTrajState &ts)

Additional Inherited Members
Protected Attributes inherited from G4ErrorTrajState
G4String	fParticleType
G4Point3D	fPosition
G4Vector3D	fMomentum
G4double	fCharge
G4ErrorTrajErr	fError
G4eTSType	theTSType
G4Track *	theG4Track
G4int	iverbose

Detailed Description

Definition at line 56 of file G4ErrorSurfaceTrajState.hh.

Constructor & Destructor Documentation

G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState	(	const G4String &	partType,
		const G4Point3D &	pos,
		const G4Vector3D &	mom,
		const G4Plane3D &	plane,
		const G4ErrorTrajErr &	errmat = G4ErrorTrajErr(5,0)
	)

Definition at line 60 of file G4ErrorSurfaceTrajState.cc.

  : G4ErrorTrajState( partType, pos, mom, errmat )
{
  Init();
  fTrajParam = G4ErrorSurfaceTrajParam( pos, mom, plane );

}

G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState	(	const G4String &	partType,
		const G4Point3D &	pos,
		const G4Vector3D &	mom,
		const G4Vector3D &	vecV,
		const G4Vector3D &	vecW,
		const G4ErrorTrajErr &	errmat = G4ErrorTrajErr(5,0)
	)

Definition at line 48 of file G4ErrorSurfaceTrajState.cc.

  : G4ErrorTrajState( partType, pos, mom, errmat )
{
  Init();
  fTrajParam = G4ErrorSurfaceTrajParam( pos, mom, vecU, vecV );
}

G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState	(	G4ErrorFreeTrajState &	tpSC,
		const G4Plane3D &	plane
	)

Definition at line 73 of file G4ErrorSurfaceTrajState.cc.

  : G4ErrorTrajState( tpSC.GetParticleType(), tpSC.GetPosition(),
                      tpSC.GetMomentum() )
{
  //  fParticleType = tpSC.GetParticleType();
  //  fPosition = tpSC.GetPosition();
  //  fMomentum = tpSC.GetMomentum();
  fTrajParam = G4ErrorSurfaceTrajParam( fPosition, fMomentum, plane );
  Init();

  //----- Get the error matrix in SC coordinates
  BuildErrorMatrix( tpSC, GetVectorV(), GetVectorW() );
}

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G4ErrorSurfaceTrajState::G4ErrorSurfaceTrajState	(	G4ErrorFreeTrajState &	tpSC,
		const G4Vector3D &	vecV,
		const G4Vector3D &	vecW,
		G4ErrorMatrix &	transfM
	)

Definition at line 90 of file G4ErrorSurfaceTrajState.cc.

  : G4ErrorTrajState( tpSC.GetParticleType(), tpSC.GetPosition(),
                      tpSC.GetMomentum() )
{
  Init(); // needed to define charge sign 
  fTrajParam = G4ErrorSurfaceTrajParam( fPosition, fMomentum, vecU, vecV );
  //----- Get the error matrix in SC coordinates
  transfM= BuildErrorMatrix( tpSC, vecU, vecV );
}

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G4ErrorSurfaceTrajState::~G4ErrorSurfaceTrajState ( )

inline

Definition at line 81 of file G4ErrorSurfaceTrajState.hh.

{}

Member Function Documentation

G4ErrorMatrix G4ErrorSurfaceTrajState::BuildErrorMatrix	(	G4ErrorFreeTrajState &	tpSC,
		const G4Vector3D &	vecV,
		const G4Vector3D &	vecW
	)

Definition at line 104 of file G4ErrorSurfaceTrajState.cc.

{
  G4double sclambda = tpSC.GetParameters().GetLambda();
  G4double scphi = tpSC.GetParameters().GetPhi();
  if( G4ErrorPropagatorData::GetErrorPropagatorData()->GetMode() == G4ErrorMode_PropBackwards ){
    sclambda *= -1;
    scphi += CLHEP::pi;
  }
  G4double cosLambda = std::cos( sclambda );
  G4double sinLambda = std::sin( sclambda );
  G4double sinPhi = std::sin( scphi );
  G4double cosPhi = std::cos( scphi );

#ifdef G4EVERBOSE
  if( iverbose >= 4) G4cout << " PM " << fMomentum.mag() << " pLambda " << sclambda << " pPhi " << scphi << G4endl;
#endif

  G4ThreeVector vTN( cosLambda*cosPhi, cosLambda*sinPhi,sinLambda );
  G4ThreeVector vUN( -sinPhi, cosPhi, 0. );
  G4ThreeVector vVN( -vTN.z()*vUN.y(),vTN.z()*vUN.x(), cosLambda );
  
#ifdef G4EVERBOSE
  if( iverbose >= 4) G4cout << " SC2SD: vTN " << vTN << " vUN " << vUN << " vVN " << vVN << G4endl;
#endif
  G4double UJ = vUN*GetVectorV();
  G4double UK = vUN*GetVectorW();
  G4double VJ = vVN*GetVectorV();
  G4double VK = vVN*GetVectorW();


  //--- Get transformation first
  G4ErrorMatrix transfM(5, 5, 0 );
  //--- Get magnetic field
  const G4Field* field = G4TransportationManager::GetTransportationManager()->GetFieldManager()->GetDetectorField();

  G4Vector3D vectorU = GetVectorV().cross( GetVectorW() );
  G4double T1R = 1. / ( vTN * vectorU );

#ifdef G4EVERBOSE
  if( iverbose >= 4) G4cout << "surf vectors:U,V,W " << vectorU << " " <<  GetVectorV() << " " << GetVectorW() << "  T1R:"<<T1R<<G4endl;
#endif


  if( fCharge != 0 && field ) {
    G4double pos[3]; pos[0] = fPosition.x()*cm; pos[1] = fPosition.y()*cm; pos[2] = fPosition.z()*cm;
    G4double Hd[3];
    field->GetFieldValue( pos, Hd );
    G4ThreeVector H = G4ThreeVector( Hd[0], Hd[1], Hd[2] ) / tesla *10.;  //in kilogauus
    G4double magH = H.mag();
    G4double invP = 1./(fMomentum.mag()/GeV);
    G4double magHM = magH * invP;
    if( magH != 0. ) {
      G4double magHM2 = fCharge / magH;
      G4double Q = -magHM * c_light/ (km/ns);
#ifdef G4EVERBOSE
      if( iverbose >= 4) G4cout << GeV <<  " Q " << Q << " magHM " << magHM << " c_light/(km/ns) " << c_light/(km/ns) << G4endl;      
#endif

      G4double sinz = -H*vUN * magHM2;
      G4double cosz =  H*vVN * magHM2;
      G4double T3R = Q * std::pow(T1R,3);
      G4double UI = vUN * vectorU;
      G4double VI = vVN * vectorU;
#ifdef G4EVERBOSE
      if( iverbose >= 4) {
        G4cout << " T1R " << T1R << " T3R " << T3R << G4endl;
        G4cout << " UI " << UI << " VI " << VI << " vectorU " << vectorU << G4endl;
        G4cout << " UJ " << UJ << " VJ " << VJ << G4endl;
        G4cout << " UK " << UK << " VK " << VK << G4endl;
      }
#endif

      transfM[1][3] = -UI*( VK*cosz-UK*sinz)*T3R;
      transfM[1][4] = -VI*( VK*cosz-UK*sinz)*T3R;
      transfM[2][3] = UI*( VJ*cosz-UJ*sinz)*T3R;
      transfM[2][4] = VI*( VJ*cosz-UJ*sinz)*T3R;
    }
  }

  G4double T2R = T1R * T1R;
  transfM[0][0] = 1.;
  transfM[1][1] = -UK*T2R;
  transfM[1][2] = VK*cosLambda*T2R;
  transfM[2][1] = UJ*T2R;
  transfM[2][2] = -VJ*cosLambda*T2R;
  transfM[3][3] = VK*T1R;
  transfM[3][4] = -UK*T1R;
  transfM[4][3] = -VJ*T1R;
  transfM[4][4] = UJ*T1R;

#ifdef G4EVERBOSE
  if( iverbose >= 4) G4cout << " SC2SD transf matrix A= " << transfM << G4endl;
#endif
  fError = G4ErrorTrajErr( tpSC.GetError().similarity( transfM ) );

#ifdef G4EVERBOSE
  if( iverbose >= 1) G4cout << "G4EP: error matrix SC2SD " << fError << G4endl;
  if( iverbose >= 4) G4cout << "G4ErrorSurfaceTrajState from SC " << *this << G4endl;
#endif

  return transfM; // want to use trasnfM for the reverse transform
}

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void G4ErrorSurfaceTrajState::Dump ( std::ostream &  out = G4cout ) const

virtual

Implements G4ErrorTrajState.

Definition at line 218 of file G4ErrorSurfaceTrajState.cc.

{
  out << *this;
}

G4ErrorSurfaceTrajParam G4ErrorSurfaceTrajState::GetParameters ( ) const

inline

Definition at line 93 of file G4ErrorSurfaceTrajState.hh.

    { return fTrajParam; }

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G4Vector3D G4ErrorSurfaceTrajState::GetVectorV ( ) const

inline

Definition at line 111 of file G4ErrorSurfaceTrajState.hh.

    { return fTrajParam.GetVectorV(); }

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G4Vector3D G4ErrorSurfaceTrajState::GetVectorW ( ) const

inline

Definition at line 114 of file G4ErrorSurfaceTrajState.hh.

    { return fTrajParam.GetVectorW(); }

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virtual void G4ErrorSurfaceTrajState::SetMomentum ( const G4Vector3D &  mom )

inlinevirtual

Reimplemented from G4ErrorTrajState.

Definition at line 120 of file G4ErrorSurfaceTrajState.hh.

    { SetParameters( fPosition, mom, GetVectorV(), GetVectorW() ); }

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void G4ErrorSurfaceTrajState::SetParameters ( const G4Point3D &  pos, const G4Vector3D &  mom, const G4Vector3D &  vecV, const G4Vector3D &  vecW  )

inline

Definition at line 95 of file G4ErrorSurfaceTrajState.hh.

    {
      fPosition = pos;
      fMomentum = mom;
      fTrajParam.SetParameters( pos, mom, vecV, vecW );
    }

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void G4ErrorSurfaceTrajState::SetParameters ( const G4Point3D &  pos, const G4Vector3D &  mom, const G4Plane3D &  plane  )

inline

Definition at line 103 of file G4ErrorSurfaceTrajState.hh.

    {
      fPosition = pos;
      fMomentum = mom;
      fTrajParam.SetParameters( pos, mom, plane );
    }

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virtual void G4ErrorSurfaceTrajState::SetPosition ( const G4Point3D  pos )

inlinevirtual

Reimplemented from G4ErrorTrajState.

Definition at line 117 of file G4ErrorSurfaceTrajState.hh.

    { SetParameters( pos, fMomentum, GetVectorV(), GetVectorW() ); }

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Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  out, const G4ErrorSurfaceTrajState &  ts  )

friend

Definition at line 225 of file G4ErrorSurfaceTrajState.cc.

{
  std::ios::fmtflags oldFlags = out.flags();
  out.setf(std::ios::fixed,std::ios::floatfield);
  
  ts.DumpPosMomError( out );
 
  out << " G4ErrorSurfaceTrajState: Params: " << ts.fTrajParam << G4endl;
  out.flags(oldFlags);
  return out;
}

---

The documentation for this class was generated from the following files:

• geant4.10.03.p01/source/error_propagation/include/G4ErrorSurfaceTrajState.hh
• geant4.10.03.p01/source/error_propagation/src/G4ErrorSurfaceTrajState.cc