hep.lcio.implementation.event

Class ITrackState

java.lang.Object

hep.lcio.implementation.event.ITrackState

All Implemented Interfaces:

LCObject, TrackState, Cloneable

public class ITrackState
extends Object
implements TrackState

Field Summary

Fields inherited from interface hep.lcio.event.TrackState

AtCalorimeter, AtFirstHit, AtIP, AtLastHit, AtOther, AtVertex, LastLocation

Constructor Summary

Constructors

Constructor and Description
ITrackState()

Method Summary

Modifier and Type	Method and Description
float[]	getCovMatrix() Covariance matrix of the track parameters.
float	getD0() Impact paramter of the track in (r-phi).
int	getLocation() The location of the track state.
float	getOmega() Omega is the signed curvature of the track in [1/mm].
float	getPhi() Phi of the track at the reference point.
float[]	getReferencePoint() Reference point of the track parameters, e.g.
float	getTanLambda() Lambda is the dip angle of the track in r-z at the reference point.
float	getZ0() Impact paramter of the track in (r-z).
void	setCovMatrix(float[] covMatrix)
void	setD0(float d0)
void	setLocation(int location)
void	setOmega(float f)
void	setPhi(float phi)
void	setReferencePoint(float[] referencePoint)
void	setTanLambda(float f)
void	setZ0(float z0)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ITrackState

public ITrackState()

Method Detail

getCovMatrix

public float[] getCovMatrix()

Description copied from interface: TrackState

Covariance matrix of the track parameters. Stored as lower triangle matrix where the order of parameters is: d0, phi, omega, z0, tan(lambda). So we have cov(d0,d0), cov( phi, d0 ), cov( phi, phi), ...

Specified by:

getCovMatrix in interface TrackState

getLocation

public int getLocation()

Description copied from interface: TrackState

The location of the track state. Location can be set to: TrackState::AtIP, TrackState::AtFirstHit, TrackState::AtLastHit, TrackState::AtCalorimeter, TrackState::AtVertex, TrackState::AtOther

Specified by:

getLocation in interface TrackState

getD0

public float getD0()

Description copied from interface: TrackState

Impact paramter of the track in (r-phi).

Specified by:

getD0 in interface TrackState

getPhi

public float getPhi()

Description copied from interface: TrackState

Phi of the track at the reference point.

Specified by:

getPhi in interface TrackState

See Also:

getReferencePoint

getReferencePoint

public float[] getReferencePoint()

Description copied from interface: TrackState

Reference point of the track parameters, e.g. the origin at the IP, or the position of the first/last hits or the entry point into the calorimeter.

Specified by:

getReferencePoint in interface TrackState

getZ0

public float getZ0()

Description copied from interface: TrackState

Impact paramter of the track in (r-z).

Specified by:

getZ0 in interface TrackState

getOmega

public float getOmega()

Description copied from interface: TrackState

Omega is the signed curvature of the track in [1/mm]. The sign is that of the particle's charge.

Specified by:

getOmega in interface TrackState

getTanLambda

public float getTanLambda()

Description copied from interface: TrackState

Lambda is the dip angle of the track in r-z at the reference point.

Specified by:

getTanLambda in interface TrackState

See Also:

getReferencePoint

setCovMatrix

public void setCovMatrix(float[] covMatrix)

setLocation

public void setLocation(int location)

setD0

public void setD0(float d0)

setPhi

public void setPhi(float phi)

setReferencePoint

public void setReferencePoint(float[] referencePoint)

setZ0

public void setZ0(float z0)

setOmega

public void setOmega(float f)

setTanLambda

public void setTanLambda(float f)