com.singularsys.jepexamples.applets
Class FunctionCanvas

java.lang.Object
  java.awt.Component
      java.awt.Canvas
          com.singularsys.jepexamples.applets.AbstractCanvas
              com.singularsys.jepexamples.applets.FunctionCanvas

All Implemented Interfaces:

java.awt.event.ComponentListener, java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible

public class FunctionCanvas
extends AbstractCanvas

This class plots a graph using the Jep API.

See Also:

Serialized Form

Nested Class Summary

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

java.awt.Canvas.AccessibleAWTCanvas

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

protected Node	expression Expression to evaluate
protected Jep	jep Math parser
protected Variable	x "x" variable

Fields inherited from class com.singularsys.jepexamples.applets.AbstractCanvas

axisColor, bgColor, cenX, cenY, defaultOffX, defaultOffY, defaultScaleX, defaultScaleY, dimensions, gridColor, labelColor, labelFont, lastpos, offX, offY, popup, scaleFont, scaleX, scaleY, showGrid, showScale, showTime, strategy

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

FunctionCanvas(Jep jep, Variable x)
Constructor

Method Summary

void	dump() Dump the coordinates on the standard output
Node	getExpression()
protected void	paintCurve(java.awt.Graphics g) Paints the graph of the function.
void	rescaled() Called when scale, or offset changed Default action is to call repaint
void	setExpression(Node expression)

Methods inherited from class com.singularsys.jepexamples.applets.AbstractCanvas

center, clipX, clipY, componentHidden, componentMoved, componentResized, componentShown, getOffX, getOffY, getPopup, getScaleX, getScaleY, keyPressed, keyReleased, keyTyped, mouseClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, mouseWheelMoved, paint, paintAxes, paintCanvas, paintGrid, paintScale, paintTime, paintWhite, reset, resetCanvas, resized, setOffset, setScale, shiftCanvas, update, xAbsolute, xRelative, yAbsolute, yRelative, zoomCanvas

Methods inherited from class java.awt.Canvas

addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

Methods inherited from class java.lang.Object

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

Field Detail

jep

protected Jep jep

Math parser

expression

protected Node expression

Expression to evaluate

x

protected Variable x

"x" variable

Constructor Detail

FunctionCanvas

public FunctionCanvas(Jep jep,
                      Variable x)

Constructor

Method Detail

getExpression

public Node getExpression()

setExpression

public void setExpression(Node expression)

paintCurve

protected void paintCurve(java.awt.Graphics g)

Paints the graph of the function. A null argument cause the values to be dumped to stdout.

Specified by:

paintCurve in class AbstractCanvas

rescaled

public void rescaled()

Description copied from class: AbstractCanvas

Called when scale, or offset changed Default action is to call repaint

Overrides:

rescaled in class AbstractCanvas

dump

public void dump()

Dump the coordinates on the standard output

Specified by:

dump in class AbstractCanvas