G4ErrorFreeTrajParam Class Reference

#include <G4ErrorFreeTrajParam.hh>

Collaboration diagram for G4ErrorFreeTrajParam:

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

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 49 of file G4ErrorFreeTrajParam.hh.

Constructor & Destructor Documentation

G4ErrorFreeTrajParam() [1/2]

G4ErrorFreeTrajParam::G4ErrorFreeTrajParam ( )

inline

Definition at line 53 of file G4ErrorFreeTrajParam.hh.

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

G4ErrorFreeTrajParam() [2/2]

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

Definition at line 40 of file G4ErrorFreeTrajParam.cc.

{
  SetParameters( pos, mom );
}

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~G4ErrorFreeTrajParam()

virtual G4ErrorFreeTrajParam::~G4ErrorFreeTrajParam ( )

inlinevirtual

Definition at line 58 of file G4ErrorFreeTrajParam.hh.

{}

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Member Function Documentation

GetDirection()

G4Vector3D G4ErrorFreeTrajParam::GetDirection ( ) const

inline

Definition at line 70 of file G4ErrorFreeTrajParam.hh.

{ return fDir;}

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GetInvP()

G4double G4ErrorFreeTrajParam::GetInvP ( ) const

inline

Definition at line 72 of file G4ErrorFreeTrajParam.hh.

{ return fInvP; }

GetLambda()

G4double G4ErrorFreeTrajParam::GetLambda ( ) const

inline

Definition at line 73 of file G4ErrorFreeTrajParam.hh.

{ return fLambda; }

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GetPhi()

G4double G4ErrorFreeTrajParam::GetPhi ( ) const

inline

Definition at line 74 of file G4ErrorFreeTrajParam.hh.

{ return fPhi; }

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GetYPerp()

G4double G4ErrorFreeTrajParam::GetYPerp ( ) const

inline

Definition at line 75 of file G4ErrorFreeTrajParam.hh.

{ return fYPerp; }

GetZPerp()

G4double G4ErrorFreeTrajParam::GetZPerp ( ) const

inline

Definition at line 76 of file G4ErrorFreeTrajParam.hh.

{ return fZPerp; }

SetParameters()

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

Definition at line 48 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.;
  }
}

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Update()

void G4ErrorFreeTrajParam::Update

(

const G4Track *

aTrack

)

Definition at line 79 of file G4ErrorFreeTrajParam.cc.

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

}

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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;
}

Member Data Documentation

fDir

G4Vector3D G4ErrorFreeTrajParam::fDir

private

Definition at line 80 of file G4ErrorFreeTrajParam.hh.

fInvP

G4double G4ErrorFreeTrajParam::fInvP

private

Definition at line 81 of file G4ErrorFreeTrajParam.hh.

fLambda

G4double G4ErrorFreeTrajParam::fLambda

private

Definition at line 82 of file G4ErrorFreeTrajParam.hh.

fPhi

G4double G4ErrorFreeTrajParam::fPhi

private

Definition at line 83 of file G4ErrorFreeTrajParam.hh.

fYPerp

G4double G4ErrorFreeTrajParam::fYPerp

private

Definition at line 84 of file G4ErrorFreeTrajParam.hh.

fZPerp

G4double G4ErrorFreeTrajParam::fZPerp

private

Definition at line 85 of file G4ErrorFreeTrajParam.hh.

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

• G4ErrorFreeTrajParam.hh
• G4ErrorFreeTrajParam.cc