com.devenezia
Class YingYang

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              com.devenezia.YingYang

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class YingYang
extends javax.swing.JComponent

Render a YingYang symbol

The symbol can be animated to rotate

Psychology of perception grants 'headedness' to the largest part of a contiguous region. The tail of a contiguous region is the smallest part.

There are four combinations of two binary aspects that convey the idea of motion to the observer.

1. 1. Head direction - Direction of the black head. Clockwise or Counterclockwise.
2. 2. Hand direction - Handedness: When black head is at 12 oclock, which direction flows to tail? Clockwise or Counterclockwise.

Head	Hand	Perceived visual effect
CW	CW	black push-CW	white pull-CW
CW	CCW	black pull-CW	white push-CW
CCW	CW	black pull-CCW	white push-CCW
CCW	CCW	black push-CCW	white pull-CCW

See Also:

Serialized Form

Nested Class Summary

static class

YingYang.RotationDirection Clockwise or Counterclockwise

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

javax.swing.JComponent.AccessibleJComponent

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.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

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

YingYang()
Creates a new instance of Rotationalndicator

Method Summary

protected void	animPause() Called from setAnimate(false)
protected void	animPlay() Called from setAnimate(true)
boolean	getAnimate() Is the component animate?
boolean	getAutosize() Will the visualization use all available space?
int	getBigDiameter() Diameter of the circle C, on which the orbit circles are drawn
boolean	getCentered() true if the symbol is centered
boolean	getDrawLittle() true if little circles are drawn
boolean	getDrawOutline() true if symbol is outlined
YingYang.RotationDirection	getHandDirection() Direction of black to white gradient
YingYang.RotationDirection	getHeadDirection() Direction of color cycling, apparent direction of black circle
double	getLittleDiameter() Diameter of the little circles
double	getLittleDiameterOffset() Center of little circles, offset from center
int	getOutlineThickness() Thickness of outline circle
int	getPaintInterval() How often does the component redraw itself when animate
java.awt.Dimension	getPreferredSize() 300 x 300
double	getSweepTime() Time to complete one revolution
double	getTheta() Symbol rotation in radians
protected void	paintComponent(java.awt.Graphics graphics) Draw the symbol
void	setAnimate(boolean on) Turn animation on or off
void	setAutosize(boolean on) Cause the component to use all available space
void	setBigDiameter(int n) Diameter of the circle on which the circles are drawn
void	setCentered(boolean on) Center the symbol
void	setDrawLittle(boolean on) Draw the little circles
void	setDrawOutline(boolean on) Outline the symbol
void	setHandDirection(YingYang.RotationDirection dir) Direction of black to white gradient
void	setHeadDirection(YingYang.RotationDirection dir) Direction of color cycling, apparent direction of black circle
void	setLittleDiameter(double x) Diameter of the little circles
void	setLittleDiameterOffset(double x) Center of little circles, offset from center
void	setOutlineThickness(int thickness) Annulus of an outline circle
void	setPaintInterval(int n) How often should the component redraw itself when animate (ms)
void	setSweepTime(double t) Time (s) to complete one revolution
void	setTheta(double theta) Symbol rotation in radians

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, 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, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, 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

YingYang

public YingYang()

Creates a new instance of Rotationalndicator

Method Detail

setAnimate

public void setAnimate(boolean on)

Turn animation on or off

getAnimate

public boolean getAnimate()

Is the component animate?

Returns:

true if animation is occurring

animPlay

protected void animPlay()

Called from setAnimate(true)

animPause

protected void animPause()

Called from setAnimate(false)

setPaintInterval

public void setPaintInterval(int n)

How often should the component redraw itself when animate (ms)

When sweepTime is small paintInterval might need to be reduced in order to ensure a smooth animation.

When bigDiameter is large paintInterval might need to be reduced in order to ensure a smooth animation.

default: 50 ms

getPaintInterval

public int getPaintInterval()

How often does the component redraw itself when animate

Returns:

milliseconds

setSweepTime

public void setSweepTime(double t)

Time (s) to complete one revolution

getSweepTime

public double getSweepTime()

Time to complete one revolution

Returns:

seconds

setBigDiameter

public void setBigDiameter(int n)

Diameter of the circle on which the circles are drawn

Ignored if autoSize is on

getBigDiameter

public int getBigDiameter()

Diameter of the circle C, on which the orbit circles are drawn

Returns:

Diameter of circle on which other circles are drawn

setLittleDiameter

public void setLittleDiameter(double x)

Diameter of the little circles

getLittleDiameter

public double getLittleDiameter()

Diameter of the little circles

Returns:

Diameter of the inner circles (% of big)

setLittleDiameterOffset

public void setLittleDiameterOffset(double x)

Center of little circles, offset from center

getLittleDiameterOffset

public double getLittleDiameterOffset()

Center of little circles, offset from center

Returns:

Center of inner circles (% of big), offset from center

setHeadDirection

public void setHeadDirection(YingYang.RotationDirection dir)

Direction of color cycling, apparent direction of black circle

CW (clockwise) or CCW (counterclockwise)

getHeadDirection

public YingYang.RotationDirection getHeadDirection()

Direction of color cycling, apparent direction of black circle

Returns:

CW (clockwise) or CCW (counterclockwise)

setHandDirection

public void setHandDirection(YingYang.RotationDirection dir)

Direction of black to white gradient

CW (clockwise) or CCW (counterclockwise)

getHandDirection

public YingYang.RotationDirection getHandDirection()

Direction of black to white gradient

Returns:

CW (clockwise) or CCW (counterclockwise)

setOutlineThickness

public void setOutlineThickness(int thickness)

Annulus of an outline circle

getOutlineThickness

public int getOutlineThickness()

Thickness of outline circle

setDrawOutline

public void setDrawOutline(boolean on)

Outline the symbol

getDrawOutline

public boolean getDrawOutline()

true if symbol is outlined

setDrawLittle

public void setDrawLittle(boolean on)

Draw the little circles

getDrawLittle

public boolean getDrawLittle()

true if little circles are drawn

setTheta

public void setTheta(double theta)

Symbol rotation in radians

getTheta

public double getTheta()

Symbol rotation in radians

setAutosize

public void setAutosize(boolean on)

Cause the component to use all available space

getAutosize

public boolean getAutosize()

Will the visualization use all available space?

Returns:

true if visualization uses all available space

setCentered

public void setCentered(boolean on)

Center the symbol

getCentered

public boolean getCentered()

true if the symbol is centered

paintComponent

protected void paintComponent(java.awt.Graphics graphics)

Draw the symbol

Overrides:

paintComponent in class javax.swing.JComponent

getPreferredSize

public java.awt.Dimension getPreferredSize()

300 x 300

Overrides:

getPreferredSize in class javax.swing.JComponent

Returns:

300 x 300