hep.lcd.vertexing.zvtop
Class ZvBeamSpot

java.lang.Object
  |
  +--hep.lcd.vertexing.zvtop.ZvBeamSpot

public class ZvBeamSpot

extends Object

ZvBeamSpot -- beam spot and error matrix

ZvTop's beam spot definition
To be set before running ZvTop.

Version:

$Id: ZvBeamSpot.java,v 1.2 2001/06/05 18:20:55 walkowia Exp $

Author:

W.Walkowiak, 09/30/00

Source Code:

ZvBeamSpot.java

Constructor Summary

ZvBeamSpot()
constructor; provides default parameter settings

ZvBeamSpot(double[] position)
constructor setting position only

ZvBeamSpot(double[] position, double[] diagError)
constructor setting position and errors
errors are sqrt(diagonal error matrix elements)

ZvBeamSpot(double[] position, double[][] errorMatrix)
constructor setting position and error matrix

ZvBeamSpot(ZvBeamSpot bs)
copy constructor

Method Summary

ZvBeamSpot	copy() get a deep copy
double[]	diagErrors() get the errors for beam spot sqrt(diagonal elements of error matrix)
double[][]	errorMatrix() get the beam spot error matrix
double[]	position() get the beam spot position
double	prob(double[] xc) get the probabilty density at point xc for beam spot
void	setDiagErrors(double[] errors) set errors for beam spot sqrt(diagonal elements of error matrix)! default: 7 um (xy) and 30 um (z) error in diagonal
void	setErrorMatrix(double[][] errorMatrix) set beam spot error matrix default: 7 um (xy) and 30 um (z) error in diagonal
void	setPosition(double[] pos) set beam spot position default: set to (0,0,0)

Methods inherited from class java.lang.Object

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

Constructor Detail

ZvBeamSpot

public ZvBeamSpot()

constructor; provides default parameter settings

ZvBeamSpot

public ZvBeamSpot(double[] position)

constructor setting position only

ZvBeamSpot

public ZvBeamSpot(double[] position,
                  double[][] errorMatrix)

constructor setting position and error matrix

ZvBeamSpot

public ZvBeamSpot(double[] position,
                  double[] diagError)

constructor setting position and errors
errors are sqrt(diagonal error matrix elements)

ZvBeamSpot

public ZvBeamSpot(ZvBeamSpot bs)

copy constructor

Method Detail

setPosition

public void setPosition(double[] pos)

set beam spot position
default: set to (0,0,0)

setErrorMatrix

public void setErrorMatrix(double[][] errorMatrix)

set beam spot error matrix
default: 7 um (xy) and 30 um (z) error in diagonal

setDiagErrors

public void setDiagErrors(double[] errors)

set errors for beam spot
sqrt(diagonal elements of error matrix)!
default: 7 um (xy) and 30 um (z) error in diagonal

position

public double[] position()

get the beam spot position

errorMatrix

public double[][] errorMatrix()

get the beam spot error matrix

diagErrors

public double[] diagErrors()

get the errors for beam spot
sqrt(diagonal elements of error matrix)

prob

public double prob(double[] xc)

get the probabilty density at point xc for beam spot

copy

public ZvBeamSpot copy()

get a deep copy