hep.lcd.vertexing.zvtop
Class ZvSwimmer

java.lang.Object
  hep.lcd.vertexing.zvtop.ZvSwimmer

All Implemented Interfaces:

Swimmer

public class ZvSwimmer

extends java.lang.Object

implements Swimmer

ZvSwimmer -- swim a track to a target position.

Provides swimming of the track helix (ZvTrack format) and error matrix to the point of closest approach to a line parallel to the beam direction which contains the target point.

Version:

$Id: ZvSwimmer.java,v 1.3 2002/10/25 01:13:11 walkowia Exp $

Author:

W.Walkowiak, 09/18/00

Constructor Summary

ZvSwimmer()

ZvSwimmer(ZvSwimmer swimmer)
copy constructor

ZvSwimmer(ZvTrack track)

Method Summary

Swimmer	copy() get a deep copy of the swimmer
double[]	getBeamDirection() get the beam direction currently used
double	getDist() get the distance of closest approach
double[]	getDistVec() get the vector of the distance of closest approach (x_ref - x_track)
double[]	getRefPoint() get the corresponding point of closest approach on the reference line
ZvSwimStatus	getStatus() get the status of the swimmer
ZvSwimStatus	getStatusCopy() get the status of the swimmer as a deep copy
ZvTrack	getSwumTrack() get the resulting (swum) track
void	setBeamDirection(double[] beamDirection) set the beam direction (or the reference direction) default: {0.,0.,1.}
void	setMaxSinL(double maxSinL) set the maximum sin(lambda) -- dip angle cut off
void	setMaxTry(int nMaxTry) set the maximum number of tries
void	setStepMin(double swimStepMin) set the minimum step size -- otherwise consider it converged
void	setStepSize(double swimStepSize) set the usual step size
void	setTrack(ZvTrack track) set track to be swum
void	setVolume(double maxRadius, double maxZ) set the fiducial volume of the detector maximum radius and maximum abs(z)
ZvSwimStatus	swimTo(double[] targetPosition) swim the track to target position

Methods inherited from class java.lang.Object

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

Constructor Detail

ZvSwimmer

public ZvSwimmer()

ZvSwimmer

public ZvSwimmer(ZvTrack track)

See Also:

setTrack(hep.lcd.vertexing.zvtop.ZvTrack)

ZvSwimmer

public ZvSwimmer(ZvSwimmer swimmer)

copy constructor

Method Detail

setTrack

public void setTrack(ZvTrack track)

set track to be swum

Specified by:

setTrack in interface Swimmer

setBeamDirection

public void setBeamDirection(double[] beamDirection)

set the beam direction
(or the reference direction)
default: {0.,0.,1.}

Specified by:

setBeamDirection in interface Swimmer

getBeamDirection

public double[] getBeamDirection()

get the beam direction currently used

See Also:

setBeamDirection(double[])

setMaxTry

public void setMaxTry(int nMaxTry)

set the maximum number of tries

setStepMin

public void setStepMin(double swimStepMin)

set the minimum step size
-- otherwise consider it converged

setStepSize

public void setStepSize(double swimStepSize)

set the usual step size

setVolume

public void setVolume(double maxRadius,
                      double maxZ)

set the fiducial volume of the detector
maximum radius and maximum abs(z)

setMaxSinL

public void setMaxSinL(double maxSinL)

set the maximum sin(lambda) -- dip angle cut off

swimTo

public ZvSwimStatus swimTo(double[] targetPosition)

swim the track to target position

Specified by:

swimTo in interface Swimmer

getSwumTrack

public ZvTrack getSwumTrack()

get the resulting (swum) track

Specified by:

getSwumTrack in interface Swimmer

getRefPoint

public double[] getRefPoint()

get the corresponding point of closest approach on the reference line

getDistVec

public double[] getDistVec()

get the vector of the distance of closest approach
(x_ref - x_track)

getDist

public double getDist()

get the distance of closest approach

getStatus

public ZvSwimStatus getStatus()

get the status of the swimmer

Specified by:

getStatus in interface Swimmer

getStatusCopy

public ZvSwimStatus getStatusCopy()

get the status of the swimmer as a deep copy

Specified by:

getStatusCopy in interface Swimmer

copy

public Swimmer copy()

get a deep copy of the swimmer

Specified by:

copy in interface Swimmer