Package com.jhlabs.image

Class CircleFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.TransformFilter

com.jhlabs.image.CircleFilter

All Implemented Interfaces:

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

public class CircleFilter
extends TransformFilter

A filter which wraps an image around a circular arc.

Field Summary

Fields inherited from class com.jhlabs.image.TransformFilter

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

Constructor Summary

Constructors

Constructor	Description
CircleFilter()	Construct a CircleFilter.

Method Summary

Modifier and Type	Method	Description
java.awt.image.BufferedImage	filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dst)
float	getAngle()	Returns the angle of the arc.
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	getHeight()	Get the height of the arc.
float	getRadius()	Get the radius of the effect.
float	getSpreadAngle()	Get the spread angle of the arc.
void	setAngle(float angle)	Set the angle of the arc.
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 Y 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	setHeight(float height)	Set the height of the arc.
void	setRadius(float radius)	Set the radius of the effect.
void	setSpreadAngle(float spreadAngle)	Set the spread angle of the arc.
java.lang.String	toString()
protected void	transformInverse(int x, int y, float[] out)	Inverse transform a point.

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, stringToColor

Methods inherited from class java.lang.Object

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

Constructor Detail

CircleFilter

public CircleFilter()

Construct a CircleFilter.

Method Detail

setHeight

public void setHeight(float height)

Set the height of the arc.

Parameters:

height - the height

See Also:

getHeight()

getHeight

public float getHeight()

Get the height of the arc.

Returns:

the height

See Also:

setHeight(float)

setAngle

public void setAngle(float angle)

Set the angle of the arc.

Parameters:

angle - the angle of the arc.

See Also:

getAngle()

getAngle

public float getAngle()

Returns the angle of the arc.

Returns:

the angle of the arc.

See Also:

setAngle(float)

setSpreadAngle

public void setSpreadAngle(float spreadAngle)

Set the spread angle of the arc.

Parameters:

spreadAngle - the angle

See Also:

getSpreadAngle()

getSpreadAngle

public float getSpreadAngle()

Get the spread angle of the arc.

Returns:

the angle

See Also:

setSpreadAngle(float)

setRadius

public void setRadius(float radius)

Set the radius of the effect.

Parameters:

radius - the radius, min-value 0,

See Also:

getRadius()

getRadius

public float getRadius()

Get the radius of the effect.

Returns:

the radius

See Also:

setRadius(float)

setCentreX

public void setCentreX(float centreX)

Set the centre of the effect in the Y 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)

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)

Description copied from class: TransformFilter

Inverse transform a point. This method needs to be overriden by all subclasses.

Specified by:

transformInverse in class TransformFilter

Parameters:

x - the X position of the pixel in the output image

y - the Y position of the pixel in the output image

out - the position of the pixel in the input image

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object