net.sourceforge.webcompmath.applets
Class FunctionCombination

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  javax.swing.JApplet
                      net.sourceforge.webcompmath.applets.GenericGraphApplet
                          net.sourceforge.webcompmath.applets.FunctionCombination

All Implemented Interfaces:

java.awt.event.ActionListener, java.awt.event.ItemListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.RootPaneContainer

public class FunctionCombination
extends GenericGraphApplet
implements java.awt.event.ActionListener, java.awt.event.ItemListener

A Function combination applet displays the graphs of three functions, f(x) and g(x), and their combination, h(x). The functions f and g are added to the parser so they can be used in the definition of h, such as h(x)=f(x)+g(x). The functions f and g can be given as table functions instead of expressions. The user controls this by clicking on check boxes. When a table function is displayed, the user can modify it by dragging its points. Optionally, the applet can also display tangent lines to the graphs. Note: This inherits from GenericGraphApplet, but a lot of code in that applet is superceded here. In particular, there is no possibility of having a limit control panel.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JApplet

javax.swing.JApplet.AccessibleJApplet

Nested classes/interfaces inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes/interfaces inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields inherited from class net.sourceforge.webcompmath.applets.GenericGraphApplet

canvas, computeButton, defaultFrameSize, exampleMenuPanel, fontSize, frameTitle, functionInput, ggBGColor, ggFGColor, inputPanel, lbf, limitsPanel, mainController, mainPanel, parameterDefaults, parser, pBGColor, presentation, xVar

Fields inherited from class javax.swing.JApplet

accessibleContext, rootPane, rootPaneCheckingEnabled

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

FunctionCombination()

Method Summary

void	actionPerformed(java.awt.event.ActionEvent evt) Respond when the user clicks one of the control buttons.
protected void	doLoadExample(java.lang.String example) This method is called when the user loads an example from the example menu (if there is one).
void	itemStateChanged(java.awt.event.ItemEvent evt) Respond when user clicks one of the check boxes.
void	setUpMainPanel() Set up the applet.

Methods inherited from class net.sourceforge.webcompmath.applets.GenericGraphApplet

addCanvasBorder, destroy, doLoadFirstExample, getColorParam, getColorParam, getNumericParam, getNumericParam, getParameter, getParameter, init, makeAxes, parseTableFuncDef, setUpBottomPanel, setUpCanvas, setUpExampleMenu, setUpLimitsPanel, setUpParameterDefaults, setUpParser, setUpTopPanel

Methods inherited from class javax.swing.JApplet

addImpl, createRootPane, getAccessibleContext, getContentPane, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isRootPaneCheckingEnabled, paramString, remove, repaint, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, update

Methods inherited from class java.applet.Applet

getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, start, stop

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, 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, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionCombination

public FunctionCombination()

Method Detail

setUpMainPanel

public void setUpMainPanel()

Set up the applet.

Overrides:

setUpMainPanel in class GenericGraphApplet

itemStateChanged

public void itemStateChanged(java.awt.event.ItemEvent evt)

Respond when user clicks one of the check boxes.

Specified by:

itemStateChanged in interface java.awt.event.ItemListener

Overrides:

itemStateChanged in class GenericGraphApplet

Parameters:

evt - event indicating user clicked a box

actionPerformed

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

Respond when the user clicks one of the control buttons.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Overrides:

actionPerformed in class GenericGraphApplet

Parameters:

evt - event sent when user clicks a button

doLoadExample

protected void doLoadExample(java.lang.String example)

This method is called when the user loads an example from the example menu (if there is one). It overrides an empty method in GenericGraphApplet. The example string should contain three function definitions, separated by a semicolon. A function definition can be either an expression or a table function. These expressions can be followed by a semicolon and four or five numbers. The first four numbers give the x- and y-limits to be used for the example. If they are not present, then -5,5,-5,5 is used. The next number is used as the x-coordinated that is selected on the graph of the first function.

Overrides:

doLoadExample in class GenericGraphApplet

Parameters:

example - the function to be graphed