net.sourceforge.webcompmath.applets
Class SecantTangent

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.SecantTangent

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 SecantTangent
extends GenericGraphApplet

The SecantTangent applet is a rather special purpose applet that is supposed to show secant lines converging on a tangent line. The applet draws a tangent line to a graph at a point marked by a draggable disk (which is red in the default version). By dragging this disk, you can move the point. A secant line is drawn from this point to another point, which is marked by another draggable disk (green in the default version). You can also set the x-coordinates of the point by entering them in the input boxes at the bottom of the applet. The slopes of the two lines are shown at the upper left, but you can turn off the display of the tangent slope if, for example, you want the user to estimate the slope of the tangent line from the slopes of secant lines.

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

SecantTangent()

Method Summary

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).
protected void	doLoadRestOfExample(java.lang.String example) Parse the example.
protected void	setUpBottomPanel() This method checks the applet parameter "UseFunctionInput".
protected void	setUpCanvas() Override this to add more stuff to the canvas.
protected void	setUpMainPanel() Set up the tick inputs and add stuff to controllers
protected void	setUpParameterDefaults() Overridden to set up default function.

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

actionPerformed, addCanvasBorder, destroy, doLoadFirstExample, getColorParam, getColorParam, getNumericParam, getNumericParam, getParameter, getParameter, init, itemStateChanged, makeAxes, parseTableFuncDef, setUpExampleMenu, setUpLimitsPanel, 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

SecantTangent

public SecantTangent()

Method Detail

setUpParameterDefaults

protected void setUpParameterDefaults()

Overridden to set up default function. Changed by PKHG 050417

Overrides:

setUpParameterDefaults in class GenericGraphApplet

setUpCanvas

protected void setUpCanvas()

Override this to add more stuff to the canvas.

Overrides:

setUpCanvas in class GenericGraphApplet

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. For the SecantTangent applet, the example string should contain an expression that defines the function to be graphed. This can optionally be followed by a semicoloon and a list of fourto six 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 fifth number, if present, gives the x-coord where the tangent line is drawn. The sixth number gives the x-coord of the second point on the secant line.

Overrides:

doLoadExample in class GenericGraphApplet

Parameters:

example - the function to be graphed

setUpBottomPanel

protected void setUpBottomPanel()

Description copied from class: GenericGraphApplet

This method checks the applet parameter "UseFunctionInput". If the value is anything but "no", then a panel is created that contains an ExpressionInput (stored in the member variable functionInput) and possibly a ComputeButton and lable for the input box. This panel is a WcmPanel using BorderLayout. In is stored in the member variable inputPanel and is added to the SOUTH position of the mainPanel. The method also processes applet parameters "Function", "UseComputeButton", "ComputeButtonName", and "FunctionLabel". The ComputeButton, if it exists, is stored in the member variable computeButton. Note that nothing at all is done by this method if the value of the applet parameter "UseFunctionInput" is no.

Overrides:

setUpBottomPanel in class GenericGraphApplet

See Also:

GenericGraphApplet.setUpBottomPanel()

doLoadRestOfExample

protected void doLoadRestOfExample(java.lang.String example)

Parse the example. Uses super.doLoadExample to process the title, function, and limits.

Parameters:

example -

See Also:

SimpleGraph.doLoadExample(java.lang.String)

setUpMainPanel

protected void setUpMainPanel()

Set up the tick inputs and add stuff to controllers

Overrides:

setUpMainPanel in class GenericGraphApplet

See Also:

SimpleGraph.setUpMainPanel()