Package org.apache.pdfbox.pdmodel.graphics.color

Class PDCalRGB

java.lang.Object

org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace

org.apache.pdfbox.pdmodel.graphics.color.PDCIEBasedColorSpace

org.apache.pdfbox.pdmodel.graphics.color.PDCIEDictionaryBasedColorSpace

org.apache.pdfbox.pdmodel.graphics.color.PDCalRGB

All Implemented Interfaces:

COSObjectable

public class PDCalRGB
extends PDCIEDictionaryBasedColorSpace

A CalRGB colour space is a CIE-based colour space with one transformation stage instead of two. In this type of space, A, B, and C represent calibrated red, green, and blue colour values.

Author:

Ben Litchfield, John Hewson

Field Summary

Fields inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDCIEDictionaryBasedColorSpace

dictionary, wpX, wpY, wpZ

Fields inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace

array

Constructor Summary

Constructors

Constructor	Description
PDCalRGB()	Creates a new CalRGB color space.
PDCalRGB(COSArray rgb)	Creates a new CalRGB color space using the given COS array.

Method Summary

Modifier and Type	Method	Description
float[]	getDefaultDecode(int bitsPerComponent)	Returns the default decode array for this color space.
PDGamma	getGamma()	Returns the gamma value.
PDColor	getInitialColor()	Returns the initial color value for this color space.
float[]	getMatrix()	Returns the linear interpretation matrix, which is an array of nine numbers.
java.lang.String	getName()	Returns the name of the color space.
int	getNumberOfComponents()	Returns the number of components in this color space
void	setGamma(PDGamma gamma)	Sets the gamma value.
void	setMatrix(Matrix matrix)	Sets the linear interpretation matrix.
float[]	toRGB(float[] value)	Returns the RGB equivalent of the given color value.

Methods inherited from class java.lang.Object

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

Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDCIEBasedColorSpace

toRGBImage, toString

Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDCIEDictionaryBasedColorSpace

convXYZtoRGB, getBlackPoint, getWhitepoint, setBlackPoint, setWhitePoint

Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace

create, create, create, getCOSObject, toRGBImageAWT

Constructor Detail

PDCalRGB

public PDCalRGB()

Creates a new CalRGB color space.

PDCalRGB

public PDCalRGB(COSArray rgb)

Creates a new CalRGB color space using the given COS array.

Parameters:

rgb - the cos array which represents this color space

Method Detail

getName

public java.lang.String getName()

Description copied from class: PDColorSpace

Returns the name of the color space.

Specified by:

getName in class PDColorSpace

Returns:

the name of the color space

getNumberOfComponents

public int getNumberOfComponents()

Description copied from class: PDColorSpace

Returns the number of components in this color space

Specified by:

getNumberOfComponents in class PDColorSpace

Returns:

the number of components in this color space

getDefaultDecode

public float[] getDefaultDecode(int bitsPerComponent)

Description copied from class: PDColorSpace

Returns the default decode array for this color space.

Specified by:

getDefaultDecode in class PDColorSpace

Parameters:

bitsPerComponent - the number of bits per component.

Returns:

the default decode array

getInitialColor

public PDColor getInitialColor()

Description copied from class: PDColorSpace

Returns the initial color value for this color space.

Specified by:

getInitialColor in class PDColorSpace

Returns:

the initial color value for this color space

toRGB

public float[] toRGB(float[] value)

Description copied from class: PDColorSpace

Returns the RGB equivalent of the given color value.

Specified by:

toRGB in class PDColorSpace

Parameters:

value - a color value with component values between 0 and 1

Returns:

an array of R,G,B value between 0 and 255

getGamma

public final PDGamma getGamma()

Returns the gamma value. If none is present then the default of 1,1,1 will be returned.

Returns:

the gamma value

getMatrix

public final float[] getMatrix()

Returns the linear interpretation matrix, which is an array of nine numbers. If the underlying dictionary contains null then the identity matrix will be returned.

Returns:

the linear interpretation matrix

setGamma

public final void setGamma(PDGamma gamma)

Sets the gamma value.

Parameters:

gamma - the new gamma value

setMatrix

public final void setMatrix(Matrix matrix)

Sets the linear interpretation matrix. Passing in null will clear the matrix.

Parameters:

matrix - the new linear interpretation matrix, or null