G4ErrorFreeTrajParam Class Reference

#include <G4ErrorFreeTrajParam.hh>

Public Member Functions
	G4ErrorFreeTrajParam ()
	G4ErrorFreeTrajParam (const G4ErrorFreeTrajParam &)=default
	G4ErrorFreeTrajParam (const G4Point3D &pos, const G4Vector3D &mom)
	G4ErrorFreeTrajParam (G4ErrorFreeTrajParam &&)=default
G4Vector3D	GetDirection () const
G4double	GetInvP () const
G4double	GetLambda () const
G4double	GetPhi () const
G4double	GetYPerp () const
G4double	GetZPerp () const
G4ErrorFreeTrajParam &	operator= (const G4ErrorFreeTrajParam &)=default
G4ErrorFreeTrajParam &	operator= (G4ErrorFreeTrajParam &&)=default
void	SetParameters (const G4Point3D &pos, const G4Vector3D &mom)
void	Update (const G4Track *aTrack)
virtual	~G4ErrorFreeTrajParam ()

Private Attributes
G4Vector3D	fDir
G4double	fInvP
G4double	fLambda
G4double	fPhi
G4double	fYPerp
G4double	fZPerp

Friends
std::ostream &	operator<< (std::ostream &, const G4ErrorFreeTrajParam &ts)

Detailed Description

Definition at line 48 of file G4ErrorFreeTrajParam.hh.

Constructor & Destructor Documentation

G4ErrorFreeTrajParam() [1/4]

G4ErrorFreeTrajParam::G4ErrorFreeTrajParam ( )

inline

Definition at line 51 of file G4ErrorFreeTrajParam.hh.

    : fInvP(0.)
    , fLambda(0.)
    , fPhi(0.)
    , fYPerp(0.)
    , fZPerp(0.)
  {}

G4ErrorFreeTrajParam() [2/4]

G4ErrorFreeTrajParam::G4ErrorFreeTrajParam	(	const G4Point3D &	pos,
		const G4Vector3D &	mom
	)

Definition at line 39 of file G4ErrorFreeTrajParam.cc.

{
  SetParameters(pos, mom);
}

References pos, and SetParameters().

G4ErrorFreeTrajParam() [3/4]

G4ErrorFreeTrajParam::G4ErrorFreeTrajParam ( const G4ErrorFreeTrajParam &  )

default

G4ErrorFreeTrajParam() [4/4]

G4ErrorFreeTrajParam::G4ErrorFreeTrajParam ( G4ErrorFreeTrajParam &&  )

default

~G4ErrorFreeTrajParam()

virtual G4ErrorFreeTrajParam::~G4ErrorFreeTrajParam ( )

inlinevirtual

Definition at line 65 of file G4ErrorFreeTrajParam.hh.

{}

Member Function Documentation

GetDirection()

G4Vector3D G4ErrorFreeTrajParam::GetDirection ( ) const

inline

Definition at line 81 of file G4ErrorFreeTrajParam.hh.

{ return fDir; }

References fDir.

Referenced by G4ErrorFreeTrajState::G4ErrorFreeTrajState().

GetInvP()

G4double G4ErrorFreeTrajParam::GetInvP ( ) const

inline

Definition at line 83 of file G4ErrorFreeTrajParam.hh.

{ return fInvP; }

References fInvP.

GetLambda()

G4double G4ErrorFreeTrajParam::GetLambda ( ) const

inline

Definition at line 84 of file G4ErrorFreeTrajParam.hh.

{ return fLambda; }

References fLambda.

Referenced by G4ErrorSurfaceTrajState::BuildErrorMatrix(), and G4ErrorFreeTrajState::G4ErrorFreeTrajState().

GetPhi()

G4double G4ErrorFreeTrajParam::GetPhi ( ) const

inline

Definition at line 85 of file G4ErrorFreeTrajParam.hh.

{ return fPhi; }

References fPhi.

Referenced by G4ErrorSurfaceTrajState::BuildErrorMatrix(), and G4ErrorFreeTrajState::G4ErrorFreeTrajState().

GetYPerp()

G4double G4ErrorFreeTrajParam::GetYPerp ( ) const

inline

Definition at line 86 of file G4ErrorFreeTrajParam.hh.

{ return fYPerp; }

References fYPerp.

GetZPerp()

G4double G4ErrorFreeTrajParam::GetZPerp ( ) const

inline

Definition at line 87 of file G4ErrorFreeTrajParam.hh.

{ return fZPerp; }

References fZPerp.

operator=() [1/2]

G4ErrorFreeTrajParam & G4ErrorFreeTrajParam::operator= ( const G4ErrorFreeTrajParam &  )

default

operator=() [2/2]

G4ErrorFreeTrajParam & G4ErrorFreeTrajParam::operator= ( G4ErrorFreeTrajParam &&  )

default

SetParameters()

void G4ErrorFreeTrajParam::SetParameters	(	const G4Point3D &	pos,
		const G4Vector3D &	mom
	)

Definition at line 46 of file G4ErrorFreeTrajParam.cc.

{
  fInvP   = 1. / mom.mag();
  fDir    = mom * fInvP;
  fLambda = 90. * deg - mom.theta();
  fPhi    = mom.phi();
  G4Vector3D vxPerp(0., 0., 0.);
  if(mom.mag() > 0.)
  {
    vxPerp = mom / mom.mag();
  }
  G4Vector3D vyPerp = G4Vector3D(-vxPerp.y(), vxPerp.x(), 0.);
  vyPerp /= vyPerp.mag();
  G4Vector3D vzPerp = vxPerp.cross(vyPerp);
  vzPerp /= vzPerp.mag();
  // check if right handed
  //  fXPerp = pos.proj( mom );
  G4ThreeVector posv(pos);
  if(vyPerp.mag() != 0.)
  {
    // now all 2 scalar memeber variables retain the signs
    //  fYPerp = posv.project( vyPerp ).mag();
    //  fZPerp = posv.project( vzPerp ).mag();
    fYPerp = posv.dot(vyPerp);
    fZPerp = posv.dot(vzPerp);
  }
  else
  {
    fYPerp = 0.;
    fZPerp = 0.;
  }
}

References HepGeom::BasicVector3D< T >::cross(), deg, CLHEP::Hep3Vector::dot(), fDir, fInvP, fLambda, fPhi, fYPerp, fZPerp, HepGeom::BasicVector3D< T >::mag(), HepGeom::BasicVector3D< T >::phi(), pos, HepGeom::BasicVector3D< T >::theta(), HepGeom::BasicVector3D< T >::x(), and HepGeom::BasicVector3D< T >::y().

Referenced by G4ErrorFreeTrajParam(), G4ErrorFreeTrajState::SetParameters(), and Update().

Update()

void G4ErrorFreeTrajParam::Update

(

const G4Track *

aTrack

)

Definition at line 81 of file G4ErrorFreeTrajParam.cc.

{
  SetParameters(aTrack->GetPosition(), aTrack->GetMomentum());
}

References G4Track::GetMomentum(), G4Track::GetPosition(), and SetParameters().

Referenced by G4ErrorFreeTrajState::Update().

Friends And Related Function Documentation

operator<<

std::ostream & operator<< ( std::ostream &  out, const G4ErrorFreeTrajParam &  ts  )

friend

Definition at line 87 of file G4ErrorFreeTrajParam.cc.

{
  G4int oldprc = out.precision(8);
  out << " InvP= " << tp.fInvP << " Theta= " << tp.fLambda
      << " Phi= " << tp.fPhi << " YPerp= " << tp.fYPerp
      << " ZPerp= " << tp.fZPerp << G4endl;
  out << " momentum direction= " << tp.fDir << G4endl;
  out.precision(oldprc);
 
  return out;
}

Field Documentation

fDir

G4Vector3D G4ErrorFreeTrajParam::fDir

private

Definition at line 90 of file G4ErrorFreeTrajParam.hh.

Referenced by GetDirection(), and SetParameters().

fInvP

G4double G4ErrorFreeTrajParam::fInvP

private

Definition at line 91 of file G4ErrorFreeTrajParam.hh.

Referenced by GetInvP(), and SetParameters().

fLambda

G4double G4ErrorFreeTrajParam::fLambda

private

Definition at line 92 of file G4ErrorFreeTrajParam.hh.

Referenced by GetLambda(), and SetParameters().

fPhi

G4double G4ErrorFreeTrajParam::fPhi

private

Definition at line 93 of file G4ErrorFreeTrajParam.hh.

Referenced by GetPhi(), and SetParameters().

fYPerp

G4double G4ErrorFreeTrajParam::fYPerp

private

Definition at line 94 of file G4ErrorFreeTrajParam.hh.

Referenced by GetYPerp(), and SetParameters().

fZPerp

G4double G4ErrorFreeTrajParam::fZPerp

private

Definition at line 95 of file G4ErrorFreeTrajParam.hh.

Referenced by GetZPerp(), and SetParameters().

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

• source/error_propagation/include/G4ErrorFreeTrajParam.hh
• source/error_propagation/src/G4ErrorFreeTrajParam.cc