Package com.jhlabs.image

Class TwirlFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.TransformFilter

com.jhlabs.image.TwirlFilter

All Implemented Interfaces:

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

public class TwirlFilter
extends TransformFilter

A Filter which distorts an image by twisting it from the centre out. The twisting is centred at the centre of the image and extends out to the smallest of the width and height. Pixels outside this radius are unaffected.

Field Summary

Fields inherited from class com.jhlabs.image.TransformFilter

BILINEAR, CLAMP, edgeAction, interpolation, NEAREST_NEIGHBOUR, originalSpace, transformedSpace, WRAP, ZERO

Constructor Summary

Constructors

Constructor	Description
TwirlFilter()	Construct a TwirlFilter with no distortion.

Method Summary

Modifier and Type	Method	Description
java.awt.image.BufferedImage	filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dst)
float	getAngle()	Get the angle of twist.
java.awt.geom.Point2D	getCentre()
float	getCentreX()
float	getCentreY()
float	getRadius()
void	setAngle(float angle)	Set the angle of twirl in radians.
void	setCentre(java.awt.geom.Point2D centre)
void	setCentreX(float centreX)
void	setCentreY(float centreY)
void	setRadius(float radius)
java.lang.String	toString()
protected void	transformInverse(int x, int y, float[] out)

Methods inherited from class com.jhlabs.image.TransformFilter

filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation, transformSpace

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

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

Methods inherited from class java.lang.Object

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

Constructor Detail

TwirlFilter

public TwirlFilter()

Construct a TwirlFilter with no distortion.

Method Detail

setAngle

public void setAngle(float angle)

Set the angle of twirl in radians. 0 means no distortion.

Parameters:

angle - the angle of twirl. This is the angle by which pixels at the nearest edge of the image will move.

getAngle

public float getAngle()

Get the angle of twist.

Returns:

the angle in radians.

setCentreX

public void setCentreX(float centreX)

getCentreX

public float getCentreX()

setCentreY

public void setCentreY(float centreY)

getCentreY

public float getCentreY()

setCentre

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

getCentre

public java.awt.geom.Point2D getCentre()

setRadius

public void setRadius(float radius)

getRadius

public float getRadius()

filter

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

Specified by:

filter in interface java.awt.image.BufferedImageOp

Overrides:

filter in class TransformFilter

transformInverse

protected void transformInverse(int x,
                                int y,
                                float[] out)

Specified by:

transformInverse in class TransformFilter

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object