hep.lcd.mc.fast
Interface TrackParameters

All Known Implementing Classes:

DocaTrackParameters

public interface TrackParameters

extends Hep3Vector

Method Summary

double	getD0()
double[][]	getErrorMatrix() Get the error matrix as a 2-D array
double	getErrorMatrixElement(int i, int j) Get an individual element of the error matrix
double[]	getMomentum()
double	getOmega()
double	getPhi0()
double	getPtot()
double	getPX()
double	getPY()
double	getPZ()
double	getTanL()
double	getTrackParameter(int i) Get an individual track parameter.
double[]	getTrackParameters() Get the track parameters as an array
int	getUnitCharge()
double	getZ0()

Methods inherited from interface hep.physics.Hep3Vector

cosTheta, mag, mag2, v, x, y, z

Method Detail

getUnitCharge

public int getUnitCharge()

getMomentum

public double[] getMomentum()

getPX

public double getPX()

getPY

public double getPY()

getPZ

public double getPZ()

getPtot

public double getPtot()

getD0

public double getD0()

getPhi0

public double getPhi0()

getOmega

public double getOmega()

getZ0

public double getZ0()

getTanL

public double getTanL()

getTrackParameter

public double getTrackParameter(int i)

Get an individual track parameter.
The track parameters for LCD are defined as follows

Index	Meaning
0	d0 = XY impact parameter
1	phi0
2	omega = 1/curv.radius (negative for q/abs(q) > 0)
3	z0 = z of track (z impact parameter)
4	s = tan lambda

Parameters:

i - The index of the track parameter

Returns:

The track parameter with the specified index

getTrackParameters

public double[] getTrackParameters()

Get the track parameters as an array

See Also:

getTrackParameter(int)

getErrorMatrixElement

public double getErrorMatrixElement(int i,
                                    int j)

Get an individual element of the error matrix

See Also:

getTrackParameter(int)

getErrorMatrix

public double[][] getErrorMatrix()

Get the error matrix as a 2-D array

See Also:

getTrackParameter(int)