org.lcsim.mc.fast.tracking.fix

Class FastMCTrack

java.lang.Object

org.lcsim.mc.fast.tracking.fix.FastMCTrack

All Implemented Interfaces:

Track

public class FastMCTrack
extends Object
implements Track

Author:

jstrube The class to store the measurement information of the track of a charged particle in a magnetic field. This class represents the FastMC simulation. An invariant of this class is that the "origin" is the point of closest approach to the reference point.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	_charge
protected SymmetricMatrix	_errorMatrix
protected LCIOParameters	_parameters
protected MCParticle	_particle
protected SpacePoint	_referencePoint
protected List<TrackState>	_trackStates

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FastMCTrack(SpacePoint refPoint, LCIOParameters parameters, SymmetricMatrix errorMatrix, int charge)
protected	FastMCTrack(SpacePoint refPoint, LCIOParameters parameters, SymmetricMatrix errorMatrix, int charge, MCParticle part)
	FastMCTrack(Track t)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	fitSuccess() Returns true if the track has been successfully fitted
int	getCharge()
double	getChi2() Get the Chi Squared for the track fit
double	getdEdx()
double	getdEdxError()
SymmetricMatrix	getErrorMatrix() Get the error matrix
MCParticle	getMCParticle()
double[]	getMomentum()
int	getNDF() Get the numbers of degrees of freedom for the fit
double	getParameter(LCIOParameters.ParameterName name)
LCIOParameters	getParameters()
double	getPt()
double	getPX()
double	getPY()
double	getPZ()
double	getRadiusOfInnermostHit()
double[]	getReferencePoint()
double	getReferencePointX()
double	getReferencePointY()
double	getReferencePointZ()
int[]	getSubdetectorHitNumbers()
List<TrackerHit>	getTrackerHits()
double	getTrackParameter(int i) Get an individual track parameter The track parameters for LCD are defined as follows Index Meaning 0 d0 = XY impact parameter 1 phi0 2 omega = 1/curv.radius (negative for negative tracks) 3 z0 = z of track origin (z impact parameter) 4 s = tan lambda Parameters according to the L3 conventions
double[]	getTrackParameters() Get the track parameters as an array
List<Track>	getTracks()
List<TrackState>	getTrackStates()
int	getType()
boolean	isReferencePointPCA()
Hep3Vector	momentum()
SpacePoint	position()
SpacePoint	referencePoint()

Methods inherited from class java.lang.Object

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

Field Detail

_parameters

protected LCIOParameters _parameters

_errorMatrix

protected SymmetricMatrix _errorMatrix

_referencePoint

protected SpacePoint _referencePoint

_charge

protected int _charge

_particle

protected MCParticle _particle

_trackStates

protected List<TrackState> _trackStates

Constructor Detail

FastMCTrack

protected FastMCTrack(SpacePoint refPoint,
           LCIOParameters parameters,
           SymmetricMatrix errorMatrix,
           int charge)

FastMCTrack

protected FastMCTrack(SpacePoint refPoint,
           LCIOParameters parameters,
           SymmetricMatrix errorMatrix,
           int charge,
           MCParticle part)

FastMCTrack

public FastMCTrack(Track t)

Method Detail

fitSuccess

public boolean fitSuccess()

Description copied from interface: Track

Returns true if the track has been successfully fitted

Specified by:

fitSuccess in interface Track

getCharge

public int getCharge()

Specified by:

getCharge in interface Track

getChi2

public double getChi2()

Description copied from interface: Track

Get the Chi Squared for the track fit

Specified by:

getChi2 in interface Track

Returns:

Chi Squared

See Also:

Track.getNDF()

getdEdx

public double getdEdx()

Specified by:

getdEdx in interface Track

getdEdxError

public double getdEdxError()

Specified by:

getdEdxError in interface Track

getErrorMatrix

public SymmetricMatrix getErrorMatrix()

Description copied from interface: Track

Get the error matrix

Specified by:

getErrorMatrix in interface Track

See Also:

Track.getTrackParameter(int)

getMCParticle

public MCParticle getMCParticle()

getMomentum

public double[] getMomentum()

Specified by:

getMomentum in interface Track

Returns:

getNDF

public int getNDF()

Description copied from interface: Track

Get the numbers of degrees of freedom for the fit

Specified by:

getNDF in interface Track

Returns:

The number of degrees of freedom

See Also:

Track.getChi2()

getParameter

public double getParameter(LCIOParameters.ParameterName name)

getParameters

public LCIOParameters getParameters()

getPt

public double getPt()

getPX

public double getPX()

Specified by:

getPX in interface Track

Returns:

getPY

public double getPY()

Specified by:

getPY in interface Track

Returns:

getPZ

public double getPZ()

Specified by:

getPZ in interface Track

Returns:

getRadiusOfInnermostHit

public double getRadiusOfInnermostHit()

Specified by:

getRadiusOfInnermostHit in interface Track

getReferencePoint

public double[] getReferencePoint()

Specified by:

getReferencePoint in interface Track

Returns:

getReferencePointX

public double getReferencePointX()

Specified by:

getReferencePointX in interface Track

Returns:

getReferencePointY

public double getReferencePointY()

Specified by:

getReferencePointY in interface Track

Returns:

getReferencePointZ

public double getReferencePointZ()

Specified by:

getReferencePointZ in interface Track

Returns:

getSubdetectorHitNumbers

public int[] getSubdetectorHitNumbers()

Specified by:

getSubdetectorHitNumbers in interface Track

getTrackerHits

public List<TrackerHit> getTrackerHits()

Specified by:

getTrackerHits in interface Track

getTrackParameter

public double getTrackParameter(int i)

Description copied from interface: Track

Get an individual track parameter The track parameters for LCD are defined as follows

Index	Meaning
0	d0 = XY impact parameter
1	phi0
2	omega = 1/curv.radius (negative for negative tracks)
3	z0 = z of track origin (z impact parameter)
4	s = tan lambda

Parameters according to the L3 conventions

Specified by:

getTrackParameter in interface Track

Parameters:

i - The index of the track parameter

Returns:

The track parameter with the specified index

getTrackParameters

public double[] getTrackParameters()

Description copied from interface: Track

Get the track parameters as an array

Specified by:

getTrackParameters in interface Track

See Also:

Track.getTrackParameter(int)

getTracks

public List<Track> getTracks()

Specified by:

getTracks in interface Track

getType

public int getType()

Specified by:

getType in interface Track

isReferencePointPCA

public boolean isReferencePointPCA()

Specified by:

isReferencePointPCA in interface Track

momentum

public Hep3Vector momentum()

position

public SpacePoint position()

referencePoint

public SpacePoint referencePoint()

getTrackStates

public List<TrackState> getTrackStates()

Specified by:

getTrackStates in interface Track