Package com.jhlabs.image

Class PolarFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.TransformFilter

com.jhlabs.image.PolarFilter

All Implemented Interfaces:

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

public class PolarFilter
extends TransformFilter

A filter which distorts and image by performing coordinate conversions between rectangular and polar coordinates.

Field Summary

Fields

Modifier and Type	Field	Description
static int	INVERT_IN_CIRCLE	Invert the image in a circle.
static int	POLAR_TO_RECT	Convert from polar to rectangular coordinates.
static int	RECT_TO_POLAR	Convert from rectangular to polar coordinates.

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
PolarFilter()	Construct a PolarFilter.
PolarFilter(int type)	Construct a PolarFilter.

Method Summary

Modifier and Type	Method	Description
java.awt.image.BufferedImage	filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dst)
int	getType()	Get the distortion type.
void	setType(int type)	Set the distortion type.
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

Field Detail

RECT_TO_POLAR

public static final int RECT_TO_POLAR

Convert from rectangular to polar coordinates.

See Also:

Constant Field Values

POLAR_TO_RECT

public static final int POLAR_TO_RECT

Convert from polar to rectangular coordinates.

See Also:

Constant Field Values

INVERT_IN_CIRCLE

public static final int INVERT_IN_CIRCLE

Invert the image in a circle.

See Also:

Constant Field Values

Constructor Detail

PolarFilter

public PolarFilter()

Construct a PolarFilter.

PolarFilter

public PolarFilter(int type)

Construct a PolarFilter.

Parameters:

type - the distortion type

Method Detail

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

setType

public void setType(int type)

Set the distortion type.

Parameters:

type - the distortion type

See Also:

getType()

getType

public int getType()

Get the distortion type.

Returns:

the distortion type

See Also:

setType(int)

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