org.lcsim.recon.tracking.trfxyp

Class HitXYPlane2

java.lang.Object

org.lcsim.recon.tracking.trfbase.Hit

org.lcsim.recon.tracking.trfxyp.HitXYPlane2

public class HitXYPlane2
extends Hit

Describes a two dimensional (v,z) measurement on an XYPlane.

This is a very simple hit. It produces one prediction with fixed measurement which is simply the (v,z) of the track.

Version:

1.0

Author:

Norman A. Graf

Field Summary

Fields

Modifier and Type	Field and Description
private static HitDerivative	_deriv
private double	_dv2
private double	_dvdz
private double	_dz2
private double	_v
private double	_z
private static double[]	values

Fields inherited from class org.lcsim.recon.tracking.trfbase.Hit

_pclus

Constructor Summary

Constructors

Constructor and Description
HitXYPlane2(double v, double z, double dv2, double dz2, double dvdz)
HitXYPlane2(HitXYPlane2 hit) Construct an instance replicating the HitXYPlane2 ( copy constructor ).

Method Summary

Methods

Modifier and Type	Method and Description
HitDerivative	dHitdTrack() Return the hit derivative with respect to a track on this surface.
HitVector	differenceVector() Return the difference between prediction and measurement.
double	dV2() Return the error matrix term for v.
double	dVdZ() Return the error matrix covariance term.
double	dZ2() Return the error matrix term for z.
protected boolean	equal(Hit hit)
ClusXYPlane2	fullCluster() Return a ClusXYPlane2 reference to the cluster.
HitError	measuredError() Return the measured hit error.
HitVector	measuredVector() Return the measured hit vector.
HitError	predictedError() Return the predicted hit error.
HitVector	predictedVector() Return the predicted hit vector.
int	size() Return the dimension of a (v,z) measurement on an xy plane.
static String	staticType() Return a String representation of the class' type name.
String	toString() output stream
String	type() Return a String representation of the class' type name.
static String	typeName() Return a String representation of the class' type name.
void	update(ETrack tre) Update the prediction (measurement and derivative do not change).
double	v() Return the measured v position of the hit.
double	z() Return the measured z position of the hit.

Methods inherited from class org.lcsim.recon.tracking.trfbase.Hit

cluster, equals, genericType, mcIds, notEquals, setParentPointer, surface

Methods inherited from class java.lang.Object

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

Field Detail

values

private static double[] values

_deriv

private static HitDerivative _deriv

_v

private double _v

_z

private double _z

_dv2

private double _dv2

_dz2

private double _dz2

_dvdz

private double _dvdz

Constructor Detail

HitXYPlane2

HitXYPlane2(double v,
           double z,
           double dv2,
           double dz2,
           double dvdz)

HitXYPlane2

public HitXYPlane2(HitXYPlane2 hit)

Construct an instance replicating the HitXYPlane2 ( copy constructor ).

Parameters:

hit - The Hit to replicate.

Method Detail

typeName

public static String typeName()

Return a String representation of the class' type name. Included for completeness with the C++ version.

Returns:

A String representation of the class' type name.

staticType

public static String staticType()

Return a String representation of the class' type name. Included for completeness with the C++ version.

Returns:

A String representation of the class' type name.

equal

protected boolean equal(Hit hit)

Specified by:

equal in class Hit

size

public int size()

Return the dimension of a (v,z) measurement on an xy plane. The value is always two.

Specified by:

size in class Hit

Returns:

The dimension of this hit (2).

measuredVector

public HitVector measuredVector()

Return the measured hit vector.

Specified by:

measuredVector in class Hit

Returns:

The HitVector for this hit.

measuredError

public HitError measuredError()

Return the measured hit error.

Specified by:

measuredError in class Hit

Returns:

The HitError for this hit.

predictedVector

public HitVector predictedVector()

Return the predicted hit vector.

Specified by:

predictedVector in class Hit

Returns:

The HitVector for the prediction.

predictedError

public HitError predictedError()

Return the predicted hit error.

Specified by:

predictedError in class Hit

Returns:

The HitError for the prediction.

dHitdTrack

public HitDerivative dHitdTrack()

Return the hit derivative with respect to a track on this surface.

Specified by:

dHitdTrack in class Hit

Returns:

The HitDerivative for a track on this surface.

differenceVector

public HitVector differenceVector()

Return the difference between prediction and measurement.

Specified by:

differenceVector in class Hit

Returns:

The HitVector for the difference between the hit prediction and measurement.

update

public void update(ETrack tre)

Update the prediction (measurement and derivative do not change).

Specified by:

update in class Hit

Parameters:

tre - The ETrack for which to predict this hit measurement.

fullCluster

public ClusXYPlane2 fullCluster()

Return a ClusXYPlane2 reference to the cluster.

Returns:

The hit as a ClusXYPlane2 object.

v

public double v()

Return the measured v position of the hit.

Returns:

The measured v position of the hit.

z

public double z()

Return the measured z position of the hit.

Returns:

The measured z position of the hit.

dV2

public double dV2()

Return the error matrix term for v.

Returns:

The error matrix term for v.

dZ2

public double dZ2()

Return the error matrix term for z.

Returns:

The error matrix term for z.

dVdZ

public double dVdZ()

Return the error matrix covariance term.

Returns:

The error matrix covariance term.

type

public String type()

Return a String representation of the class' type name. Included for completeness with the C++ version.

Overrides:

type in class Hit

Returns:

A String representation of the class' type name.

toString

public String toString()

output stream

Overrides:

toString in class Object

Returns:

A String representation of this instance.