com.jhlabs.image

Class FeedbackFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.FeedbackFilter

All Implemented Interfaces:

java.awt.image.BufferedImageOp, java.lang.Cloneable

public class FeedbackFilter
extends AbstractBufferedImageOp

A filter which priduces a video feedback effect by repeated transformations.

Constructor Summary

Constructors

Constructor and Description
FeedbackFilter() Construct a FeedbackFilter.
FeedbackFilter(float distance, float angle, float rotation, float zoom) Construct a FeedbackFilter.

Method Summary

Modifier and Type	Method and Description
java.awt.image.BufferedImage	filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dst)
float	getAngle() Returns the angle of each iteration.
java.awt.geom.Point2D	getCentre() Get the centre of the effect as a proportion of the image size.
float	getCentreX() Get the centre of the effect in the X direction as a proportion of the image size.
float	getCentreY() Get the centre of the effect in the Y direction as a proportion of the image size.
float	getDistance() Get the distance to move on each iteration.
float	getEndAlpha() Get the alpha value at the last iteration.
int	getIterations() Get the number of iterations.
float	getRotation() Returns the amount of rotation on each iteration.
float	getStartAlpha() Get the alpha value at the first iteration.
float	getZoom() Returns the amount to scale on each iteration.
void	setAngle(float angle) Specifies the angle of each iteration.
void	setCentre(java.awt.geom.Point2D centre) Set the centre of the effect as a proportion of the image size.
void	setCentreX(float centreX) Set the centre of the effect in the X direction as a proportion of the image size.
void	setCentreY(float centreY) Set the centre of the effect in the Y direction as a proportion of the image size.
void	setDistance(float distance) Specifies the distance to move on each iteration.
void	setEndAlpha(float endAlpha) Set the alpha value at the last iteration.
void	setIterations(int iterations) Set the number of iterations.
void	setRotation(float rotation) Specifies the amount of rotation on each iteration.
void	setStartAlpha(float startAlpha) Set the alpha value at the first iteration.
void	setZoom(float zoom) Specifies the amount to scale on each iteration.
java.lang.String	toString()

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB, stringToColor

Methods inherited from class java.lang.Object

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

Constructor Detail

FeedbackFilter

public FeedbackFilter()

Construct a FeedbackFilter.

FeedbackFilter

public FeedbackFilter(float distance,
                      float angle,
                      float rotation,
                      float zoom)

Construct a FeedbackFilter.

Parameters:

distance - the distance to move on each iteration

angle - the angle to move on each iteration

rotation - the amount to rotate on each iteration

zoom - the amount to scale on each iteration

Method Detail

setAngle

public void setAngle(float angle)

Specifies the angle of each iteration.

Parameters:

angle - the angle of each iteration.

See Also:

getAngle()

getAngle

public float getAngle()

Returns the angle of each iteration.

Returns:

the angle of each iteration.

See Also:

setAngle(float)

setDistance

public void setDistance(float distance)

Specifies the distance to move on each iteration.

Parameters:

distance - the distance

See Also:

getDistance()

getDistance

public float getDistance()

Get the distance to move on each iteration.

Returns:

the distance

See Also:

setDistance(float)

setRotation

public void setRotation(float rotation)

Specifies the amount of rotation on each iteration.

Parameters:

rotation - the angle of rotation

See Also:

getRotation()

getRotation

public float getRotation()

Returns the amount of rotation on each iteration.

Returns:

the angle of rotation

See Also:

setRotation(float)

setZoom

public void setZoom(float zoom)

Specifies the amount to scale on each iteration.

Parameters:

zoom - the zoom factor

See Also:

getZoom()

getZoom

public float getZoom()

Returns the amount to scale on each iteration.

Returns:

the zoom factor

See Also:

setZoom(float)

setStartAlpha

public void setStartAlpha(float startAlpha)

Set the alpha value at the first iteration.

Parameters:

startAlpha - the alpha value, min-value 0, max-value 1.

See Also:

getStartAlpha()

getStartAlpha

public float getStartAlpha()

Get the alpha value at the first iteration.

Returns:

the alpha value

See Also:

setStartAlpha(float)

setEndAlpha

public void setEndAlpha(float endAlpha)

Set the alpha value at the last iteration.

Parameters:

endAlpha - the alpha value, min-value 0, max-value 1

See Also:

getEndAlpha()

getEndAlpha

public float getEndAlpha()

Get the alpha value at the last iteration.

Returns:

the alpha value

See Also:

setEndAlpha(float)

setCentreX

public void setCentreX(float centreX)

Set the centre of the effect in the X direction as a proportion of the image size.

Parameters:

centreX - the center

See Also:

getCentreX()

getCentreX

public float getCentreX()

Get the centre of the effect in the X direction as a proportion of the image size.

Returns:

the center

See Also:

setCentreX(float)

setCentreY

public void setCentreY(float centreY)

Set the centre of the effect in the Y direction as a proportion of the image size.

Parameters:

centreY - the center

See Also:

getCentreY()

getCentreY

public float getCentreY()

Get the centre of the effect in the Y direction as a proportion of the image size.

Returns:

the center

See Also:

setCentreY(float)

setCentre

public void setCentre(java.awt.geom.Point2D centre)

Set the centre of the effect as a proportion of the image size.

Parameters:

centre - the center

See Also:

getCentre()

getCentre

public java.awt.geom.Point2D getCentre()

Get the centre of the effect as a proportion of the image size.

Returns:

the center

See Also:

setCentre(java.awt.geom.Point2D)

setIterations

public void setIterations(int iterations)

Set the number of iterations.

Parameters:

iterations - the number of iterations, min-value 0

See Also:

getIterations()

getIterations

public int getIterations()

Get the number of iterations.

Returns:

the number of iterations

See Also:

setIterations(int)

filter

public java.awt.image.BufferedImage filter(java.awt.image.BufferedImage src,
                                           java.awt.image.BufferedImage dst)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object