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Class ncsa.horizon.awt.color.StretchableColorModel

java.lang.Object
  |
  +--java.awt.image.ColorModel
        |
        +--ncsa.horizon.awt.color.HorizonColorModel
              |
              +--ncsa.horizon.awt.color.RemappableColorModel
                    |
                    +--ncsa.horizon.awt.color.StretchableColorModel

public class StretchableColorModel

extends RemappableColorModel

a HorizonColorModel that can be stretched, squeezed, and slid.

See Also:

Serialized Form

Field Summary

double	m the slope of the mapping
int	off the offset of the mapping
int	pivot the pivot point for changing the slope

Fields inherited from class ncsa.horizon.awt.color.RemappableColorModel

cached, refcm, tbl

Fields inherited from class ncsa.horizon.awt.color.HorizonColorModel

mapsz, transi

Fields inherited from class java.awt.image.ColorModel

pixel_bits, transferType

Constructor Summary

StretchableColorModel(java.awt.image.IndexColorModel cm)
instantiate a StretchableColorModel.

StretchableColorModel(HorizonColorModel cm)
instantiate a StretchableColorModel.

Method Summary

int	getMappedIndex(int index) return the current mapping of a given index to an index in the reference color table.
int	getOffset() get the current shift or offset
int	getPivot() get the current pivot index.
double	getSlope() get the current scaling factor or slope
void	incSlope(double inc)
void	setOffset(int offset) set the current shift or offset
void	setPivot(int p) get the current pivot index.
void	setSlope(double s) set the current scaling factor or slope
void	shiftOffset(int shift) add an amount to the offset
void	stretch(int amount)

Methods inherited from class ncsa.horizon.awt.color.RemappableColorModel

cacheMapping, clone, createIndexColorModel, getAlpha, getAlpha, getBlue, getBlue, getGreen, getGreen, getMappedIndex, getRed, getRed, getRefAlpha, getRefBlue, getRefGreen, getRefModel, getRefRed, getRefRGB, hardReset, setOverflowColor, setUndefinedColor, setUnderflowColor, softReset

Methods inherited from class ncsa.horizon.awt.color.HorizonColorModel

addHorizonColorModelListener, clearChanged, clone, createIndexColorModel, delayNotify, delayNotify, getAlpha, getAlphas, getBlue, getBlues, getGreen, getGreens, getMapSize, getOverflowColor, getRed, getReds, getTransparentIndex, getUndefinedColor, getUnderflowColor, hasChanged, notifyListeners, removeAllListeners, removeListener, saveColorModel, saveColorModel, saveColorModel, setChanged, setChanged, setOverflowColor, setTransparentIndex, setUndefinedColor, setUnderflowColor

Methods inherited from class java.awt.image.ColorModel

coerceData, createCompatibleSampleModel, createCompatibleWritableRaster, equals, finalize, getAlpha, getAlpha, getAlphaRaster, getBlue, getBlue, getColorSpace, getComponents, getComponents, getComponentSize, getComponentSize, getDataElement, getDataElements, getGreen, getGreen, getNormalizedComponents, getNumColorComponents, getNumComponents, getPixelSize, getRed, getRed, getRGB, getRGB, getRGBdefault, getTransparency, getUnnormalizedComponents, hasAlpha, isAlphaPremultiplied, isCompatibleRaster, isCompatibleSampleModel, setDataElements, toString

Methods inherited from class java.lang.Object

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

Field Detail

m

protected double m

the slope of the mapping

off

protected int off

the offset of the mapping

pivot

protected int pivot

the pivot point for changing the slope

Constructor Detail

StretchableColorModel

public StretchableColorModel(java.awt.image.IndexColorModel cm)

instantiate a StretchableColorModel.

Parameters:

cm - the initial color model

StretchableColorModel

public StretchableColorModel(HorizonColorModel cm)

instantiate a StretchableColorModel.

Parameters:

cm - the initial color model

Method Detail

getMappedIndex

public int getMappedIndex(int index)

return the current mapping of a given index to an index in the reference color table.

Overrides:

getMappedIndex in class RemappableColorModel

getSlope

public double getSlope()

get the current scaling factor or slope

setSlope

public void setSlope(double s)

set the current scaling factor or slope

Throws:

java.lang.IllegalArgumentException - if s=0, infinity, or NaN;

getOffset

public int getOffset()

get the current shift or offset

setOffset

public void setOffset(int offset)

set the current shift or offset

getPivot

public int getPivot()

get the current pivot index.

setPivot

public void setPivot(int p)

get the current pivot index.

shiftOffset

public void shiftOffset(int shift)

add an amount to the offset

incSlope

public void incSlope(double inc)

stretch

public void stretch(int amount)