org.jhotdraw.color

Class CIEXYChromaticityDiagramImageProducer

java.lang.Object

java.awt.image.MemoryImageSource

org.jhotdraw.color.CIEXYChromaticityDiagramImageProducer

All Implemented Interfaces:

java.awt.image.ImageProducer

public class CIEXYChromaticityDiagramImageProducer
extends java.awt.image.MemoryImageSource

Produces a CIE xy Chromaticity Diagram.

The diagram shows a projection of the CIE XYZ cube on a xy plane. The projection is based on the following equations:

x = X / (X + Y + Z), y = Y / (X + Y + Z), z = 1 - x - y.

The equations can be rewritten as:

X = (x*(Y+Z)/(1-x), Y = (y*(X+Z)/(1-y).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CIEXYChromaticityDiagramImageProducer.OutsideGamutHandling

Constructor Summary

Constructors

Constructor and Description
CIEXYChromaticityDiagramImageProducer(int w, int h)

Method Summary

Modifier and Type	Method and Description
void	generateImage()
float[]	getColorAt(int x, int y)
java.awt.Point	getColorLocation(java.awt.Color c)
java.awt.Point	getColorLocation(float[] components)
int	getHeight()
int	getWidth()
boolean	needsGeneration()
void	regenerateDiagram()
void	toRGB(float[] ciexyz, float[] rgb)

Methods inherited from class java.awt.image.MemoryImageSource

addConsumer, isConsumer, newPixels, newPixels, newPixels, newPixels, newPixels, removeConsumer, requestTopDownLeftRightResend, setAnimated, setFullBufferUpdates, startProduction

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CIEXYChromaticityDiagramImageProducer

public CIEXYChromaticityDiagramImageProducer(int w,
                                             int h)

Method Detail

needsGeneration

public boolean needsGeneration()

regenerateDiagram

public void regenerateDiagram()

generateImage

public void generateImage()

getColorLocation

@Nullable
public java.awt.Point getColorLocation(java.awt.Color c)

getColorLocation

@Nullable
public java.awt.Point getColorLocation(float[] components)

getColorAt

@Nullable
public float[] getColorAt(int x,
                                    int y)

getWidth

public int getWidth()

getHeight

public int getHeight()

toRGB

public void toRGB(float[] ciexyz,
                  float[] rgb)