Class CCApplet

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--BaseApplet
                                |
                                +--BaseApplet2
                                      |
                                      +--CCApplet

public class CCApplet

extends BaseApplet2

Applet to plot density of states, Fermi-Dirac distribution, and carrier concentration. The RotatedPlotter class is used to allow the energy axes of all three graph to be parallel.

A slider is provided to modify the Fermi level, and a temperature scale is also provided.

See Also:

Serialized Form

Inner Class Summary

(package private) class	CCApplet.DensityFunction Provides a simple representation of the density function.
protected class	CCApplet.EFListener Detects changes in the position of the Fermi level slider.
protected class	CCApplet.TemperatureListener Detects changes in the position of the temperature slider.

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 java.awt.Checkbox	autoScale
protected CCApplet.DensityFunction	dFunction The density of states function
protected double	dispRange The selected display to band gap size ratio
protected Plotter	dPlotter
protected double	ef The selected Fermi level
protected CCApplet.EFListener	efListener Listener for the Fermi level slider
protected FermiDirac	fdFunction The Fermi-Dirac function
protected java.awt.TextField	fermiField
protected Plotter	fPlotter
protected CarrierConcentration	function Electron concentration function
protected double	gap The selected band gap size
protected java.awt.TextField	gapField
protected int	graphW
protected CarrierConcentration	holeFunction Hole concentration function
protected Plotter	holePlotter
protected int	hSpace
protected java.awt.Checkbox	logScale
protected double	maxEF The maximum Fermi level
protected double	maxT The maximum temperature
protected double	minEF The minimum Fermi level
protected double	minT The minimum temperature
protected java.awt.Checkbox	noScale
protected Plotter	plotter
protected java.awt.TextField	rangeField
protected java.awt.TextField	ratioField
protected double	t The selected temperature
protected java.awt.TextField	tempField
protected CCApplet.TemperatureListener	tempListener Listener for the temperature slider
protected java.awt.Checkbox	tempScale
protected Plotter	tPlotter
protected int	vSpace

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

CCApplet()

Method Summary

void	actionPerformed(java.awt.event.ActionEvent ae) Subclasses should at least provide an empty implementation of this method.
void	doPaint(java.awt.Graphics g) Called by forcePaint() to actually perform the painting.
double	getDispRange() Returns the ratio between the size of the vertical range and the size of the band gap.
double	getEF() Returns the selected Fermi level
double	getGap() Returns the size of the band gap.
double	getN() Returns the integral of the electron distribution.
double	getP() Returns the integral of the hole distribution.
double	getT() Returns the selected temperature
void	init() Performs extra initialisation, including adding a panel to the bottom of the applet.
void	setDispRange(double d) Sets the ratio between the size of the vertical range and the size of the band gap.
void	setEF(double d) Sets the selected Fermi level
void	setGap(double d) Sets the size of the band gap.
void	setRatio(double d) Sets the hole/electron effective mass ratio.
void	setT(double d) Sets the selected temperature
void	start() Applets should use this method to perform any final initialisation necessary to "activate" the applet
void	stop() When this method is called, the applet should cease any user interaction.
void	updateInput() Reads in (and validates) input from the text fields.

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

vSpace

protected int vSpace

hSpace

protected int hSpace

graphW

protected int graphW

ef

protected double ef

The selected Fermi level

maxEF

protected double maxEF

The maximum Fermi level

minEF

protected double minEF

The minimum Fermi level

minT

protected double minT

The minimum temperature

maxT

protected double maxT

The maximum temperature

t

protected double t

The selected temperature

gap

protected double gap

The selected band gap size

dispRange

protected double dispRange

The selected display to band gap size ratio

function

protected CarrierConcentration function

Electron concentration function

holeFunction

protected CarrierConcentration holeFunction

Hole concentration function

fdFunction

protected FermiDirac fdFunction

The Fermi-Dirac function

dFunction

protected CCApplet.DensityFunction dFunction

The density of states function

plotter

protected Plotter plotter

holePlotter

protected Plotter holePlotter

tPlotter

protected Plotter tPlotter

fPlotter

protected Plotter fPlotter

dPlotter

protected Plotter dPlotter

efListener

protected CCApplet.EFListener efListener

Listener for the Fermi level slider

tempListener

protected CCApplet.TemperatureListener tempListener

Listener for the temperature slider

fermiField

protected java.awt.TextField fermiField

tempField

protected java.awt.TextField tempField

gapField

protected java.awt.TextField gapField

rangeField

protected java.awt.TextField rangeField

ratioField

protected java.awt.TextField ratioField

autoScale

protected java.awt.Checkbox autoScale

noScale

protected java.awt.Checkbox noScale

tempScale

protected java.awt.Checkbox tempScale

logScale

protected java.awt.Checkbox logScale

Constructor Detail

CCApplet

public CCApplet()

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 BaseApplet2

start

public void start()

Description copied from class: BaseApplet

Applets should use this method to perform any final initialisation necessary to "activate" the applet

Overrides:

start in class BaseApplet2

stop

public void stop()

Description copied from class: BaseApplet

When this method is called, the applet should cease any user interaction. In particular, any threads explicitly started should be stopped, any external resources should be closed. This method should negate the action of start().

Overrides:

stop in class BaseApplet2

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 BaseApplet

Tags copied from class: BaseApplet

Parameters:

g - The Graphics object on which to paint

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent ae)

Description copied from class: BaseApplet

Subclasses should at least provide an empty implementation of this method.

Overrides:

actionPerformed in class BaseApplet

updateInput

public void updateInput()

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

Throws:

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

getP

public double getP()

Returns the integral of the hole distribution. The integral is not found numerically - a formula for the integral is used.

getN

public double getN()

Returns the integral of the electron distribution. The integral is not found numerically - a formula for the integral is used.

getEF

public double getEF()

Returns the selected Fermi level

setEF

public void setEF(double d)

Sets the selected Fermi level

getT

public double getT()

Returns the selected temperature

setT

public void setT(double d)

Sets the selected temperature

getGap

public double getGap()

Returns the size of the band gap. The size is measured from the centre of the gap, so the width of the gap is actually twice this value.

setGap

public void setGap(double d)

Sets the size of the band gap. The size is measured from the centre of the gap, so the width of the gap is actually twice this value.

getDispRange

public double getDispRange()

Returns the ratio between the size of the vertical range and the size of the band gap.

If the band gap occupies a quarter of the display, this method will return 4.

setDispRange

public void setDispRange(double d)

Sets the ratio between the size of the vertical range and the size of the band gap.

If the band gap is to occupy a quarter of the display, then the value 4 should be supplied.

setRatio

public void setRatio(double d)

Sets the hole/electron effective mass ratio.