simulations.experiments.radiation
Class OscillatingDipoleExperiment

java.lang.Object
  simulations.experiments.BaseExperiment
      simulations.experiments.radiation.OscillatingDipoleExperiment

public class OscillatingDipoleExperiment

extends BaseExperiment

Fields of an oscillating electric dipole. This class computes the evolution of the experiment in which a electric dipole is oscillating, creating waves that flow out from the dipole at the speed of light. We include near zone, intermediate zone, and far zone terms in the expressions for the electric field.

Version:

1.0

Author:

Andreas Sundquist

Field Summary

private ElectricOscillatingDipole	dipole
private double	omega The angular frequency of the oscillating dipole
private double	p0 The constant part of the dipole moment of the oscillating dipole
private double	p1 The sinusoidal part of the dipole moment of the oscillating dipole
private double	phase The phase shift in the sinusoidal time depedence of the oscillating dipole

Fields inherited from class simulations.experiments.BaseExperiment

eps, FieldMotionType, FieldType, FluidFlowSpeed, Fnorm, Fpower, numberSmallSteps

Constructor Summary

OscillatingDipoleExperiment(double p0, double p1, double omega, double phase)
Constructs an instance of the experiment where the dipole has a constant moment "p0" added to an oscillation of amplitude "p1" at a frequency "omega".

Method Summary

void	ConstructEMSource() Creates the EMSource that represents the experiment and can be used to compute the E&M fields
void	Evolve(double dt) Evolves the experiment by a time step "dt".
BaseObject	getEMSource() Returns: an EMSource that represents the current experimental state.
double	getFlowSpeed(Vec3 r, Vec RegionFlow) Method to find the flow speed in a given region when we are determining that speed according to region.
double	getHue(double TargetHue, Vec3 r, Vec RegionColor) Method to find the hue in a given region when we are coloring according to region (Color Mode 4).

Methods inherited from class java.lang.Object

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

Field Detail

p0

private double p0

The constant part of the dipole moment of the oscillating dipole

p1

private double p1

The sinusoidal part of the dipole moment of the oscillating dipole

omega

private double omega

The angular frequency of the oscillating dipole

phase

private double phase

The phase shift in the sinusoidal time depedence of the oscillating dipole

dipole

private ElectricOscillatingDipole dipole

Constructor Detail

OscillatingDipoleExperiment

public OscillatingDipoleExperiment(double p0,
                                   double p1,
                                   double omega,
                                   double phase)

Constructs an instance of the experiment where the dipole has a constant moment "p0" added to an oscillation of amplitude "p1" at a frequency "omega".

Method Detail

ConstructEMSource

public void ConstructEMSource()

Creates the EMSource that represents the experiment and can be used to compute the E&M fields

Specified by:

ConstructEMSource in class BaseExperiment

getEMSource

public BaseObject getEMSource()

Returns: an EMSource that represents the current experimental state. It can be used to compute the E&M fields. The dipole is centered at the origin, and its direction is along the z-axis.

Specified by:

getEMSource in class BaseExperiment

Evolve

public void Evolve(double dt)

Evolves the experiment by a time step "dt".

Specified by:

Evolve in class BaseExperiment

getHue

public double getHue(double TargetHue,
                     Vec3 r,
                     Vec RegionColor)

Method to find the hue in a given region when we are coloring according to region (Color Mode 4).

Specified by:

getHue in class BaseExperiment

Parameters:

TargetHue - This is the target hue from the renderer.

r - This is the vector postion of the point in the image.

RegionColor - This is the varous hues for the regions.

Returns:

The hue for the part of the image map at r.

getFlowSpeed

public double getFlowSpeed(Vec3 r,
                           Vec RegionFlow)

Method to find the flow speed in a given region when we are determining that speed according to region. This method is used when we have set experiment.FieldMotionType to one of either Constants.FIELD_MOTION_VREFIELD or Constants.FIELD_MOTION_VRBFIELD.

Specified by:

getFlowSpeed in class BaseExperiment

Parameters:

r - This is the vector postion of the point in the image.

RegionFlow - This is the flow speeds for the regions.

Returns:

The flow speed for the part of the image map at r.