org.lcsim.recon.tracking.trfcyl

Class HitCylPhiZ2D

java.lang.Object

org.lcsim.recon.tracking.trfbase.Hit

org.lcsim.recon.tracking.trfcyl.HitCylPhiZ2D

public class HitCylPhiZ2D
extends Hit

Describes a measurement of both phi and z on a cylinder.

This hit produces a two-dimensional prediction of phi and z of the track.

Only ClusCylPhiZ2D objects are allowed to construct HitCylPhiZ2D objects.

Version:

1.0

Author:

Norman A. Graf

Field Summary

Fields

Modifier and Type	Field and Description
private static HitDerivative	_deriv
private double	_ephi_pre
private double	_ephiz_pre
private double	_ez_pre
private double	_phi_pre
private double	_z_pre
private static double[]	values

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

_pclus

Constructor Summary

Constructors

Constructor and Description
HitCylPhiZ2D(double phi, double ephi, double z, double ez, double ephiz)
HitCylPhiZ2D(HitCylPhiZ2D hcpz) Construct an instance replicating the HitCylPhiZ2D ( 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.
boolean	equal(Hit hit) Test equality.
ClusCylPhiZ2D	fullCluster() Return a ClusCylPhiZ2D reference to the hit.
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 phi, z measurement on a cylinder.
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).

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

_phi_pre

private double _phi_pre

_z_pre

private double _z_pre

_ephi_pre

private double _ephi_pre

_ez_pre

private double _ez_pre

_ephiz_pre

private double _ephiz_pre

values

private static double[] values

_deriv

private static HitDerivative _deriv

Constructor Detail

HitCylPhiZ2D

HitCylPhiZ2D(double phi,
            double ephi,
            double z,
            double ez,
            double ephiz)

HitCylPhiZ2D

public HitCylPhiZ2D(HitCylPhiZ2D hcpz)

Construct an instance replicating the HitCylPhiZ2D ( copy constructor ).

Parameters:

hcpz - 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

public boolean equal(Hit hit)

Test equality. Hits are equal if they have the same parent cluster.

Specified by:

equal in class Hit

Parameters:

hit - The Hit to test against.

Returns:

true if the Hits are the same.

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.

size

public int size()

Return the dimension of a phi, z measurement on a cylinder. 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 ClusCylPhiZ2D fullCluster()

Return a ClusCylPhiZ2D reference to the hit.

Returns:

The hit as a ClusCylPhiZ2D object.

toString

public String toString()

output stream

Overrides:

toString in class Object

Returns:

A String representation of this instance.