com.jhlabs.math
Class ImageFunction2D

java.lang.Object
  com.jhlabs.math.ImageFunction2D

All Implemented Interfaces:

Function2D

public class ImageFunction2D
extends java.lang.Object
implements Function2D

Field Summary

static int	CLAMP
static int	WRAP
static int	ZERO

Constructor Summary

ImageFunction2D(java.awt.image.BufferedImage image)

ImageFunction2D(java.awt.image.BufferedImage image, boolean alpha)

ImageFunction2D(java.awt.image.BufferedImage image, int edgeAction, boolean alpha)

ImageFunction2D(java.awt.Image image)

ImageFunction2D(java.awt.Image image, int edgeAction, boolean alpha)

ImageFunction2D(int[] pixels, int width, int height, int edgeAction, boolean alpha)

Method Summary

float	evaluate(float x, float y)
int	getEdgeAction()
int	getHeight()
int[]	getPixels()
int[]	getRGB(java.awt.image.BufferedImage image, int x, int y, int width, int height, int[] pixels) A convenience method for getting ARGB pixels from an image.
int	getWidth()
void	init(int[] pixels, int width, int height, int edgeAction, boolean alpha)
void	setEdgeAction(int edgeAction)

Methods inherited from class java.lang.Object

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

Field Detail

ZERO

public static final int ZERO

See Also:

Constant Field Values

CLAMP

public static final int CLAMP

See Also:

Constant Field Values

WRAP

public static final int WRAP

See Also:

Constant Field Values

Constructor Detail

ImageFunction2D

public ImageFunction2D(java.awt.image.BufferedImage image)

ImageFunction2D

public ImageFunction2D(java.awt.image.BufferedImage image,
                       boolean alpha)

ImageFunction2D

public ImageFunction2D(java.awt.image.BufferedImage image,
                       int edgeAction,
                       boolean alpha)

ImageFunction2D

public ImageFunction2D(int[] pixels,
                       int width,
                       int height,
                       int edgeAction,
                       boolean alpha)

ImageFunction2D

public ImageFunction2D(java.awt.Image image)

ImageFunction2D

public ImageFunction2D(java.awt.Image image,
                       int edgeAction,
                       boolean alpha)

Method Detail

getRGB

public int[] getRGB(java.awt.image.BufferedImage image,
                    int x,
                    int y,
                    int width,
                    int height,
                    int[] pixels)

A convenience method for getting ARGB pixels from an image. This tries to avoid the performance penalty of BufferedImage.getRGB unmanaging the image.

init

public void init(int[] pixels,
                 int width,
                 int height,
                 int edgeAction,
                 boolean alpha)

evaluate

public float evaluate(float x,
                      float y)

Specified by:

evaluate in interface Function2D

setEdgeAction

public void setEdgeAction(int edgeAction)

getEdgeAction

public int getEdgeAction()

getWidth

public int getWidth()

getHeight

public int getHeight()

getPixels

public int[] getPixels()