Class FourLevels

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--BaseApplet
                                |
                                +--BaseApplet2
                                      |
                                      +--EmissionApplet
                                            |
                                            +--FeedbackApplet
                                                  |
                                                  +--FourLevels

public class FourLevels

extends FeedbackApplet

As for the Feedback/Emission/Absorption Applet, but with an extra two energy levels. Internally, the energy levels are numbered from the top down, starting at zero.

See Also:

Serialized Form

Inner Class Summary

(package private) class

FourLevels.Electron

Inner classes inherited from class EmissionApplet

EmissionApplet.Electron, EmissionApplet.Photon

Inner classes inherited from class BaseApplet2

BaseApplet2.FixedButton, BaseApplet2.FixedCheckbox, BaseApplet2.GraphClickListener

Inner classes inherited from class BaseApplet

BaseApplet.MozillaWorkaround, BaseApplet.ResizeListener

Inner classes inherited from class java.awt.Component

java.awt.Component.AWTTreeLock

Field Summary

protected int[]	energyLevelY An array of four y co-ordinates (measured in pixels), one for each energy level.
protected java.awt.TextField	lowerDecayField
protected double	lowerDecayRate The rate at which electrons move to the bottommost state from the state immediately above.
protected java.awt.TextField	upperDecayField
protected double	upperDecayRate The rate at which electrons move from the topmost state to the state immediately below.

Fields inherited from class FeedbackApplet

dtField, exitDensity, exited, exitMessage, feedbackField, feedbackRate, loopTime, obsCount, observations, obsTimer, plotter, sampleTime, t

Fields inherited from class EmissionApplet

absorb, absorbField, destroy, destroyPhotons, dt, electrons, electronSpeed, emit, emitField, exciteAll, excitedY, exciteNone, hGap, hMargin, inversionField, invert, margin, normalY, photons, pump, pumpField, simH, simW, sinTable, spont, spontField, thr, vMargin, waveDispLen

Fields inherited from class BaseApplet2

boxes, buttons, enablePrompt, fields, focus, panel, statusLabel, useSwing, V_MARGIN

Fields inherited from class BaseApplet

buffer, GRAPH_MARGIN, refresh, resizeListener, safetyLimit, useBuffer

Fields inherited from class java.applet.Applet

serialVersionUID, stub

Fields inherited from class java.awt.Panel

base, nameCounter, serialVersionUID

Fields inherited from class java.awt.Container

component, containerListener, containerSerializedDataVersion, dispatcher, layoutMgr, maxSize, ncomponents, serialVersionUID

Fields inherited from class java.awt.Component

actionListenerK, adjustmentListenerK, appContext, assert, background, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, changeSupport, componentListener, componentListenerK, componentOrientation, componentSerializedDataVersion, containerListenerK, cursor, dropTarget, enabled, eventMask, focusListener, focusListenerK, font, foreground, hasFocus, height, incRate, inputMethodListener, inputMethodListenerK, isInc, isPacked, itemListenerK, keyListener, keyListenerK, LEFT_ALIGNMENT, locale, LOCK, minSize, mouseListener, mouseListenerK, mouseMotionListener, mouseMotionListenerK, name, nameExplicitlySet, newEventsOnly, ownedWindowK, parent, peer, peerFont, popups, prefSize, RIGHT_ALIGNMENT, serialVersionUID, textListenerK, TOP_ALIGNMENT, valid, visible, width, windowListenerK, x, y

Constructor Summary

FourLevels()

Method Summary

protected void	addFields() Adds the text fields to the GUI
void	createElectrons() Override superclass method, so that this applet's modified electron will be used.
void	doPaint(java.awt.Graphics g) Called by forcePaint() to actually perform the painting.
void	init() Performs extra initialisation, including adding a panel to the bottom of the applet.
void	updateInput() Reads in (and validates) input from the text fields.

Methods inherited from class FeedbackApplet

cullPhotons, updatePhotons

Methods inherited from class EmissionApplet

actionPerformed, buildSineTable, calcInversion, destroyPhotons, findElectron, invert, killAnim, paintElectrons, paintPhotons, paintWave, run, setAllExcited, sin, spawnPhoton, start, startAnim, stop, updateElectrons

Methods inherited from class BaseApplet2

add, add, addButton, addCheckbox, addField, addField, addField, addListeners, focusGained, focusLost, getDouble, getGraphHeight, getInt, lockControls, makeButton, makePanel, paintDashedLineH, paintDashedLineV, register, removeListeners, setComponentsEnabled, setLayout, setPromptEnabled, textValueChanged, toString, unlockControls

Methods inherited from class BaseApplet

changeFont, forcePaint, getAppletInfo, getParameterInfo, itemStateChanged, paint, refresh, update

Methods inherited from class java.applet.Applet

destroy, getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus

Methods inherited from class java.awt.Panel

, addNotify, constructComponentName

Methods inherited from class java.awt.Container

add, add, add, add, addContainerListener, addImpl, applyOrientation, countComponents, deliverEvent, dispatchEventImpl, dispatchEventToSelf, doLayout, eventEnabled, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents_NoClientCode, getComponents, getCursorTarget, getInsets, getLayout, getMaximumSize, getMinimumSize, getMouseEventTarget, getPreferredSize, getWindow, initIDs, insets, invalidate, invalidateTree, isAncestorOf, layout, lightweightPrint, list, list, locate, minimumSize, nextFocus, paintComponents, paramString, postProcessKeyEvent, postsOldMouseEvents, preferredSize, preProcessKeyEvent, print, printComponents, printOneComponent, processContainerEvent, processEvent, proxyEnableEvents, proxyRequestFocus, readObject, remove, remove, removeAll, removeContainerListener, removeNotify, setCursor, setFocusOwner, setFont, transferFocus, updateCursor, validate, validateTree, writeObject

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, areInputMethodsEnabled, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont_NoClientCode, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getIntrinsicCursor, getLocation, getLocation, getLocationOnScreen, getName, getNativeContainer, getParent_NoClientCode, getParent, getPeer, getSize, getSize, getToolkit, getToolkitImpl, getTreeLock, getWidth, getWindowForObject, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isDisplayable, isDoubleBuffered, isEnabled, isEnabledImpl, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setDropTarget, setEnabled, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

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

Field Detail

energyLevelY

protected int[] energyLevelY

An array of four y co-ordinates (measured in pixels), one for each energy level.

upperDecayRate

protected double upperDecayRate

The rate at which electrons move from the topmost state to the state immediately below.

lowerDecayRate

protected double lowerDecayRate

The rate at which electrons move to the bottommost state from the state immediately above.

upperDecayField

protected java.awt.TextField upperDecayField

lowerDecayField

protected java.awt.TextField lowerDecayField

Constructor Detail

FourLevels

public FourLevels()

Method Detail

init

public void init()

Description copied from class: BaseApplet2

Performs extra initialisation, including adding a panel to the bottom of the applet.

Overrides:

init in class FeedbackApplet

addFields

protected void addFields()

Adds the text fields to the GUI

Overrides:

addFields in class FeedbackApplet

updateInput

public void updateInput()

Description copied from class: EmissionApplet

Reads in (and validates) input from the text fields.

Overrides:

updateInput in class FeedbackApplet

Tags copied from class: EmissionApplet

Throws:

java.lang.IllegalArgumentException - if any input fields are invalid

doPaint

public void doPaint(java.awt.Graphics g)

Description copied from class: BaseApplet

Called by forcePaint() to actually perform the painting. Subclasses should implement this method as if it were the standard paint() method; buffering will then take place transparently.

Overrides:

doPaint in class FeedbackApplet

Tags copied from class: BaseApplet

Parameters:

g - The Graphics object on which to paint

createElectrons

public void createElectrons()

Override superclass method, so that this applet's modified electron will be used.

Overrides:

createElectrons in class EmissionApplet