org.hps.util

Class RK4integrator

java.lang.Object

org.hps.util.RK4integrator

public class RK4integrator
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
private double	alpha
private org.lcsim.geometry.FieldMap	fM
private double	h
private double	h2

Constructor Summary

Constructors

Constructor and Description
RK4integrator(double Q, double dx, org.lcsim.geometry.FieldMap fM)

Method Summary

Modifier and Type	Method and Description
private Pair<Hep3Vector,Hep3Vector>	f(Hep3Vector x, Hep3Vector p)
Pair<Hep3Vector,Hep3Vector>	integrate(Hep3Vector r0, Hep3Vector p0, double s)
Hep3Vector	integrationMomentum(Hep3Vector r0, Hep3Vector p0, double s)
Hep3Vector	integrationPosition(Hep3Vector r0, Hep3Vector p0, double s)
void	setAlpha(double input)
void	setFieldmap(org.lcsim.geometry.FieldMap input)
void	setQ(int input)
void	setStepSize(double input)

Methods inherited from class java.lang.Object

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

Field Detail

h

private double h

h2

private double h2

alpha

private double alpha

fM

private org.lcsim.geometry.FieldMap fM

Constructor Detail

RK4integrator

public RK4integrator(double Q,
                     double dx,
                     org.lcsim.geometry.FieldMap fM)

Method Detail

setQ

public void setQ(int input)

setAlpha

public void setAlpha(double input)

setFieldmap

public void setFieldmap(org.lcsim.geometry.FieldMap input)

setStepSize

public void setStepSize(double input)

integrationPosition

public Hep3Vector integrationPosition(Hep3Vector r0,
                                      Hep3Vector p0,
                                      double s)

integrationMomentum

public Hep3Vector integrationMomentum(Hep3Vector r0,
                                      Hep3Vector p0,
                                      double s)

integrate

public Pair<Hep3Vector,Hep3Vector> integrate(Hep3Vector r0,
                                             Hep3Vector p0,
                                             double s)

f

private Pair<Hep3Vector,Hep3Vector> f(Hep3Vector x,
                                      Hep3Vector p)