Atlfast::TrackParameters Class Reference

#include <TrackParameters.h>

Inheritance diagram for Atlfast::TrackParameters:

[legend]Collaboration diagram for Atlfast::TrackParameters:


Public Member Functions
	TrackParameters ()
	TrackParameters (double eta, Phi phi, double pT, double impactParameter, double zPerigee, double cotTheta, double invPtCharge)
virtual double	eta () const
virtual Phi	phi () const
virtual double	pT () const
virtual double	impactParameter () const
virtual double	zPerigee () const
virtual double	cotTheta () const
virtual double	invPtCharge () const
double	theta () const
double	invPCharge () const
Private Attributes
double	m_eta
Phi	m_phi
double	m_pT
double	m_impactParameter
double	m_zPerigee
double	m_cotTheta
double	m_invPtCharge

Detailed Description

Represents the parameters of a track

Definition at line 14 of file TrackParameters.h.

Constructor & Destructor Documentation

Atlfast::TrackParameters::TrackParameters ( ) [inline]

Definition at line 18 of file TrackParameters.h.

00018 {}

Atlfast::TrackParameters::TrackParameters	(	double	eta,
		Phi	phi,
		double	pT,
		double	impactParameter,
		double	zPerigee,
		double	cotTheta,
		double	invPtCharge
	)			`[inline]`

Definition at line 19 of file TrackParameters.h.

00026                        :
00027         m_eta(eta),
00028         m_phi(phi),
00029         m_pT(pT),
00030         m_impactParameter(impactParameter),
00031         m_zPerigee(zPerigee),
00032         m_cotTheta(cotTheta),
00033         m_invPtCharge(invPtCharge) {}

Member Function Documentation

virtual double Atlfast::TrackParameters::eta ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 35 of file TrackParameters.h.

00035 { return m_eta; }

virtual Phi Atlfast::TrackParameters::phi ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 36 of file TrackParameters.h.

00036 { return m_phi; }

virtual double Atlfast::TrackParameters::pT ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 37 of file TrackParameters.h.

00037 { return m_pT; }

virtual double Atlfast::TrackParameters::impactParameter ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 38 of file TrackParameters.h.

00038 { return m_impactParameter; }

virtual double Atlfast::TrackParameters::zPerigee ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 39 of file TrackParameters.h.

00039 { return m_zPerigee; }

virtual double Atlfast::TrackParameters::cotTheta ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 40 of file TrackParameters.h.

00040 { return m_cotTheta; }

virtual double Atlfast::TrackParameters::invPtCharge ( ) const [inline, virtual]

Implements Atlfast::ITrackParameters.

Definition at line 41 of file TrackParameters.h.

00041 { return m_invPtCharge; }

double Atlfast::TrackParameters::theta ( ) const [inline]

Definition at line 62 of file TrackParameters.h.

00063   {
00064     double theta = ( m_cotTheta  ?  std::atan( 1.0 / m_cotTheta )  :  M_PI/2 );
00065     if ( theta < 0.0 )  theta += M_PI;
00066     return theta;
00067   }

double Atlfast::TrackParameters::invPCharge ( ) const [inline]

Definition at line 69 of file TrackParameters.h.

00070   {
00071     double sinTheta = ( m_cotTheta  ?  std::sqrt( 1.0 / ( 1.0  + m_cotTheta * m_cotTheta ) )  :  1.0 );
00072     return m_invPtCharge * sinTheta;
00073   }