ITrack

java.lang.Object
- hep.lcio.implementation.event.ITrack

All Implemented Interfaces:: LCObject, Track, Cloneable

public class ITrack
extends Object
implements Track

Constructor Summary

Constructors
Constructor and Description

ITrack()

Constructors
Constructor and Description
`ITrack()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`float`	`getChi2()` Chi^2 of the track fit.
`TrackState`	`getClosestTrackState(float x, float y, float z)` Returns track state closest to the given point.
`float[]`	`getCovMatrix()` Covariance matrix of the track parameters.
`float`	`getD0()` Impact paramter of the track in (r-phi).
`float`	`getdEdx()` dEdx of the track.
`float`	`getdEdxError()` Error of dEdx.
`int`	`getNdf()` Number of degrees of freedom of the track fit.
`float`	`getOmega()` Omega is the signed curvature of the track in [1/mm].
`float`	`getPhi()` Phi of the track at the reference point.
`float`	`getRadiusOfInnermostHit()` The radius of the innermost hit that has been used in the track fit.
`float[]`	`getReferencePoint()` Reference point of the track parameters.
`int[]`	`getSubdetectorHitNumbers()` A vector that holds the number of hits in particular subdetectors.
`float`	`getTanLambda()` Lambda is the dip angle of the track in r-z at the reference point.
`List`	`getTrackerHits()` Optionaly ( check/set flag(LCIO::TRBIT_HITS)==1) return the hits that have been used to create this track.
`List`	`getTracks()` The tracks that have been combined to this track.
`TrackState`	`getTrackState(int location)` Returns track state for the given location - or NULL if not found.
`List`	`getTrackStates()` Returns track states associtated to this track.
`int`	`getType()` Flagword that defines the type of track.
`float`	`getZ0()` Impact paramter of the track in (r-z).
`void`	`setChi2(float chi2)`
`void`	`setCovMatrix(float[] covMatrix)`
`void`	`setD0(float d0)`
`void`	`setDEdx(float dEdx)`
`void`	`setDEdxError(float dEdxError)`
`void`	`setNdf(int i)`
`void`	`setOmega(float f)`
`void`	`setPhi(float phi)`
`void`	`setRadiusOfInnermostHit(float f)`
`void`	`setReferencePoint(float[] referencePoint)`
`void`	`setSubdetectorHitNumbers(int[] is)`
`void`	`setTanLambda(float f)`
`void`	`setTrackerHits(List hits)`
`void`	`setTracks(List tracks)`
`void`	`setTypeBit(int bit)`
`void`	`setTypeBit(int bit, boolean val)`
`void`	`setZ0(float z0)`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ITrack
```
public ITrack()
```
- Method Detail
  - getD0
```
public float getD0()
```
    Description copied from interface: Track
    
    Impact paramter of the track in (r-phi). Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getD0 in interface Track
  - setD0
```
public void setD0(float d0)
```
  - getPhi
```
public float getPhi()
```
    Description copied from interface: Track
    
    Phi of the track at the reference point. @see getReferencePoint Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getPhi in interface Track
  - setPhi
```
public void setPhi(float phi)
```
  - getOmega
```
public float getOmega()
```
    Description copied from interface: Track
    
    Omega is the signed curvature of the track in [1/mm]. The sign is that of the particle's charge. Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getOmega in interface Track
  - setOmega
```
public void setOmega(float f)
```
  - getZ0
```
public float getZ0()
```
    Description copied from interface: Track
    
    Impact paramter of the track in (r-z). Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getZ0 in interface Track
  - setZ0
```
public void setZ0(float z0)
```
  - getTanLambda
```
public float getTanLambda()
```
    Description copied from interface: Track
    
    Lambda is the dip angle of the track in r-z at the reference point. @see getReferencePoint Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getTanLambda in interface Track
  - setTanLambda
```
public void setTanLambda(float f)
```
  - getCovMatrix
```
public float[] getCovMatrix()
```
    Description copied from interface: Track
    
    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), ... Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getCovMatrix in interface Track
  - setCovMatrix
```
public void setCovMatrix(float[] covMatrix)
```
  - getReferencePoint
```
public float[] getReferencePoint()
```
    Description copied from interface: Track
    
    Reference point of the track parameters. The default for the reference point is the point of closest approach. Information is stored in the first TrackState of this Track, @see TrackState.
    
    Specified by:
    
    getReferencePoint in interface Track
  - setReferencePoint
```
public void setReferencePoint(float[] referencePoint)
```
  - getTrackerHits
```
public List getTrackerHits()
```
    Description copied from interface: Track
    
    Optionaly ( check/set flag(LCIO::TRBIT_HITS)==1) return the hits that have been used to create this track.
    
    Specified by:
    
    getTrackerHits in interface Track
  - getTracks
```
public List getTracks()
```
    Description copied from interface: Track
    
    The tracks that have been combined to this track.
    
    Specified by:
    
    getTracks in interface Track
  - getTrackStates
```
public List getTrackStates()
```
    Description copied from interface: Track
    
    Returns track states associtated to this track. @see TrackState.
    
    Specified by:
    
    getTrackStates in interface Track
  - getClosestTrackState
```
public TrackState getClosestTrackState(float x,
                                       float y,
                                       float z)
```
    Description copied from interface: Track
    
    Returns track state closest to the given point. @see TrackState.
    
    Specified by:
    
    getClosestTrackState in interface Track
  - getTrackState
```
public TrackState getTrackState(int location)
```
    Description copied from interface: Track
    
    Returns track state for the given location - or NULL if not found. @see TrackState. location can be: TrackState::AtIP, TrackState::AtFirstHit, TrackState::AtLastHit, TrackState::AtCalorimeter, TrackState::AtVertex, TrackState::AtOther
    
    Specified by:
    
    getTrackState in interface Track
  - getType
```
public int getType()
```
    Description copied from interface: Track
    
    Flagword that defines the type of track. Bits 0-15 can be used to denote the subdetectors that have contributed hits used in the track fit. For the definition of the bits check/Set the collection variables TrackTypeBitNames and TrackTypeBitIndices.
    Bits 16-31 are used internally.
    
    Specified by:
    
    getType in interface Track
  - getChi2
```
public float getChi2()
```
    Description copied from interface: Track
    
    Chi^2 of the track fit.
    
    Specified by:
    
    getChi2 in interface Track
  - getdEdx
```
public float getdEdx()
```
    Description copied from interface: Track
    
    dEdx of the track.
    
    Specified by:
    
    getdEdx in interface Track
  - getdEdxError
```
public float getdEdxError()
```
    Description copied from interface: Track
    
    Error of dEdx.
    
    Specified by:
    
    getdEdxError in interface Track
  - setChi2
```
public void setChi2(float chi2)
```
  - setDEdx
```
public void setDEdx(float dEdx)
```
  - setDEdxError
```
public void setDEdxError(float dEdxError)
```
  - getNdf
```
public int getNdf()
```
    Description copied from interface: Track
    
    Number of degrees of freedom of the track fit.
    
    Specified by:
    
    getNdf in interface Track
  - setNdf
```
public void setNdf(int i)
```
  - setTypeBit
```
public void setTypeBit(int bit)
```
  - setTypeBit
```
public void setTypeBit(int bit,
                       boolean val)
```
  - setTracks
```
public void setTracks(List tracks)
```
  - setTrackerHits
```
public void setTrackerHits(List hits)
```
  - getRadiusOfInnermostHit
```
public float getRadiusOfInnermostHit()
```
    Description copied from interface: Track
    
    The radius of the innermost hit that has been used in the track fit. Helps to detect V0 tracks with small impact paramters or heavy mesons. To be used as convenient information or if hits are not stored in the data set, e.g. DST or FastMC.
    
    Specified by:
    
    getRadiusOfInnermostHit in interface Track
  - setRadiusOfInnermostHit
```
public void setRadiusOfInnermostHit(float f)
```
  - getSubdetectorHitNumbers
```
public int[] getSubdetectorHitNumbers()
```
    Description copied from interface: Track
    
    A vector that holds the number of hits in particular subdetectors. The mapping of indices to subdetectors is implementation dependent. To be used as convenient information or if hits are not stored in the data set, e.g. DST or FastMC. Check/set collection variable TrackSubdetectorNames for decoding the indices.
    
    Specified by:
    
    getSubdetectorHitNumbers in interface Track
  - setSubdetectorHitNumbers
```
public void setSubdetectorHitNumbers(int[] is)
```

Class ITrack

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ITrack

Method Detail

getD0

setD0

getPhi

setPhi

getOmega

setOmega

getZ0

setZ0

getTanLambda

setTanLambda

getCovMatrix

setCovMatrix

getReferencePoint

setReferencePoint

getTrackerHits

getTracks

getTrackStates

getClosestTrackState

getTrackState

getType

getChi2

getdEdx

getdEdxError

setChi2

setDEdx

setDEdxError

getNdf

setNdf

setTypeBit

setTypeBit

setTracks

setTrackerHits

getRadiusOfInnermostHit

setRadiusOfInnermostHit

getSubdetectorHitNumbers

setSubdetectorHitNumbers