java.lang.Object
- java.awt.Component
- - java.awt.Canvas
  - - gov.nih.mipav.view.ColorWheel

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible
```
public class ColorWheel
extends java.awt.Canvas
```
Author:

pandyan This is the Color Wheel class for the DTI Color Display Plugin References: Developed in concert with Sinisa Pajevic from the NIH/CIT/DCB/MSCL group, Lin-Ching Chang D.Sc., Carlo Pierpaoli MD Ph.D., and Lindsay Walker MS from the the NIH/NICHD/LIMB/STBB group and Olga Vogt from the NIH/CIT/DCB/ISL/BIRSS group: Mathematical and Statistical Computing Laboratory (MSCL) Biomedical Imaging Research Services Section (BIRSS) Imaging Sciences Laboratory (ISL) Division of Cumputational Bioscience (DCB) Center for Informational Technology (CIT) Section on Tissue Biophysics and Biomimetics (STBB) Laboratory of Integrative and Medical Biophysics (LIMB) National Institute of Child Health & Humann Development National Institutes of Health Publication Reference: S. Pajevic and C. Pierpaoli, "Color Schemes to Represent the Orientation of Anisotropic Tissues from Diffusion Tensor Data: Application to White Matter Fiber Tract Mapping in the Human Brain," Magnetic Resonance in Medicine, vol. 42, no. 3, pp. 526-540, 1999

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

Fields
Modifier and Type	Field	Description
`private float[]`	`blueShiftColors`	array of r,g,b values after blue shifting
`private float`	`gamma`	gamma correction
`private float[]`	`greenAdjColors`	array of r,g,b values after green adj
`private java.awt.Graphics`	`offGraphics`	offscreen graphics handle
`private java.awt.Image`	`offImage`	offscreen image
`private float`	`pB`	blue saturation
`private float`	`pC`	color range
`private float`	`pG`	green adj
`private float`	`pS`	sat vs theta
`private int`	`r1`	radii of all the circles...r6 is the outermost radius
`private int`	`r2`	radii of all the circles...r6 is the outermost radius
`private int`	`r3`	radii of all the circles...r6 is the outermost radius
`private int`	`r4`	radii of all the circles...r6 is the outermost radius
`private int`	`r5`	radii of all the circles...r6 is the outermost radius
`private int`	`r6`	radii of all the circles...r6 is the outermost radius
`private float[]`	`redShiftColors`	array of r,g,b values after red shifting
`private float`	`stevensBeta`	Stevens Beta
`private java.lang.String`	`type`	type of color wheel ABSVAL, NOSYMM, ROTATIONALSYMM, MIRRORSYMM

Fields inherited from class java.awt.Component
accessibleContext, 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

Constructors
Constructor Description

ColorWheel(java.lang.String initialType, int radius)
constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`float[]`	`adjustGreen(float r1, float g1, float b1)`	adjust green intensity
`void`	`calculateRadii()`	calculates radii of the interior circles using Lambertian equal areas equation used: r = 2 \|sin(theta/2)\|
`java.lang.String`	`getType()`
`void`	`paint(java.awt.Graphics g)`	paint method
`void`	`paintAbsValColorWheel()`	Paints the Absolute Value Color Wheel
`void`	`paintMirrorSymmColorWheel()`	Paints the Mirror Symmetry Color Wheel
`void`	`paintNoSymmColorWheel()`	Paints the No Symmetry Color Wheel
`void`	`paintRotationalSymmColorWheel()`	Paints the Rotational Symmetry Color Wheel
`void`	`setGamma(float gamma)`
`void`	`setPB(float pb)`
`void`	`setPC(float pc)`
`void`	`setPG(float pg)`
`void`	`setPS(float ps)`
`void`	`setStevensBeta(float stevensBeta)`
`void`	`setType(java.lang.String type)`
`float[]`	`shiftBlue(float r1, float g1, float b1)`	blue shift
`float[]`	`shiftRed(float r1, float g1, float b1)`	red shift
`void`	`update(java.awt.Graphics g)`	Calls paint without erasing background - this reduces flicker!

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, 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, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setMixingCutoutShape, 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
  - offImage
```
private java.awt.Image offImage
```
    offscreen image
  - offGraphics
```
private java.awt.Graphics offGraphics
```
    offscreen graphics handle
  - r1
```
private int r1
```
    radii of all the circles...r6 is the outermost radius
  - r2
```
private int r2
```
    radii of all the circles...r6 is the outermost radius
  - r3
```
private int r3
```
    radii of all the circles...r6 is the outermost radius
  - r4
```
private int r4
```
    radii of all the circles...r6 is the outermost radius
  - r5
```
private int r5
```
    radii of all the circles...r6 is the outermost radius
  - r6
```
private int r6
```
    radii of all the circles...r6 is the outermost radius
  - type
```
private java.lang.String type
```
    type of color wheel ABSVAL, NOSYMM, ROTATIONALSYMM, MIRRORSYMM
  - pS
```
private float pS
```
    sat vs theta
  - pC
```
private float pC
```
    color range
  - pB
```
private float pB
```
    blue saturation
  - gamma
```
private float gamma
```
    gamma correction
  - pG
```
private float pG
```
    green adj
  - stevensBeta
```
private float stevensBeta
```
    Stevens Beta
  - blueShiftColors
```
private float[] blueShiftColors
```
    array of r,g,b values after blue shifting
  - redShiftColors
```
private float[] redShiftColors
```
    array of r,g,b values after red shifting
  - greenAdjColors
```
private float[] greenAdjColors
```
    array of r,g,b values after green adj
- Constructor Detail
  - ColorWheel
```
public ColorWheel(java.lang.String initialType,
                  int radius)
```
    constructor
    
    Parameters:
    
    type -
    
    radius -
- Method Detail
  - paint
```
public void paint(java.awt.Graphics g)
```
    paint method
    
    Overrides:
    
    paint in class java.awt.Canvas
  - calculateRadii
```
public void calculateRadii()
```
    calculates radii of the interior circles using Lambertian equal areas equation used: r = 2 |sin(theta/2)|
  - paintAbsValColorWheel
```
public void paintAbsValColorWheel()
```
    Paints the Absolute Value Color Wheel
  - paintNoSymmColorWheel
```
public void paintNoSymmColorWheel()
```
    Paints the No Symmetry Color Wheel
  - paintRotationalSymmColorWheel
```
public void paintRotationalSymmColorWheel()
```
    Paints the Rotational Symmetry Color Wheel
  - paintMirrorSymmColorWheel
```
public void paintMirrorSymmColorWheel()
```
    Paints the Mirror Symmetry Color Wheel
  - shiftBlue
```
public float[] shiftBlue(float r1,
                         float g1,
                         float b1)
```
    blue shift
    
    Parameters:
    
    r1 -
    
    g1 -
    
    b1 -
    
    Returns:
  - shiftRed
```
public float[] shiftRed(float r1,
                        float g1,
                        float b1)
```
    red shift
    
    Parameters:
    
    r1 -
    
    g1 -
    
    b1 -
    
    Returns:
  - adjustGreen
```
public float[] adjustGreen(float r1,
                           float g1,
                           float b1)
```
    adjust green intensity
    
    Parameters:
    
    r1 -
    
    g1 -
    
    b1 -
    
    Returns:
  - update
```
public void update(java.awt.Graphics g)
```
    Calls paint without erasing background - this reduces flicker!
    
    Overrides:
    
    update in class java.awt.Canvas
    
    Parameters:
    
    g - Graphics handle
  - setGamma
```
public void setGamma(float gamma)
```
  - setPB
```
public void setPB(float pb)
```
  - setPC
```
public void setPC(float pc)
```
  - setPG
```
public void setPG(float pg)
```
  - setPS
```
public void setPS(float ps)
```
  - setStevensBeta
```
public void setStevensBeta(float stevensBeta)
```
  - setType
```
public void setType(java.lang.String type)
```
  - getType
```
public java.lang.String getType()
```

Class ColorWheel

Nested Class Summary

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

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

Field Summary

Fields inherited from class java.awt.Component

Fields inherited from interface java.awt.image.ImageObserver

Constructor Summary

Method Summary

Methods inherited from class java.awt.Canvas

Methods inherited from class java.awt.Component

Methods inherited from class java.lang.Object

Field Detail

offImage

offGraphics

r1

r2

r3

r4

r5

r6

type

pS

pC

pB

gamma

pG

stevensBeta

blueShiftColors

redShiftColors

greenAdjColors

Constructor Detail

ColorWheel

Method Detail

paint

calculateRadii

paintAbsValColorWheel

paintNoSymmColorWheel

paintRotationalSymmColorWheel

paintMirrorSymmColorWheel

shiftBlue

shiftRed

adjustGreen

update

setGamma

setPB

setPC

setPG

setPS

setStevensBeta

setType

getType