com.vwp.awt.image
Class ImageUtils

java.lang.Object
  com.vwp.awt.image.ImageUtils

public class ImageUtils
extends Object

This class contains a collection of useful functions related to image manipulation and handling. Some of them are useful especially together with Java 3D

Constructor Summary

ImageUtils()
Main constructor

Method Summary

BufferedImage	createBufferedImage(byte[] b, double scalingFactor) Creates a BufferedImage out of a picture (.gif, .jpg, ...)
BufferedImage	createBufferedImage(byte[] b, double scalingFactor, boolean textureScaling) Creates a BufferedImage out of a picture (.gif, .jpg, ...)
BufferedImage	createBufferedImage(byte[] b, double scalingFactor, boolean textureScaling, Insets cropTexture) Creates a BufferedImage out of a picture (.gif, .jpg, ...)
int	getClosestPowerOf2(int value) Evaluates a value which is a power of two and nearest to the given value
BufferedImage	scaleBufferedImage(BufferedImage inBImg, int w, int h) Scales a BufferedImage to a new size using a smooth scaling algorithm (Image.SCALE_SMOOTH)

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageUtils

public ImageUtils()

Main constructor

Method Detail

createBufferedImage

public BufferedImage createBufferedImage(byte[] b,
                                         double scalingFactor)

Creates a BufferedImage out of a picture (.gif, .jpg, ...)

Parameters:

b - the loaded picture file inside a byte-array

scalingFactor - factor which has to be used to prescale the image

Returns:

the BufferedImage created out of the picture

createBufferedImage

public BufferedImage createBufferedImage(byte[] b,
                                         double scalingFactor,
                                         boolean textureScaling)

Creates a BufferedImage out of a picture (.gif, .jpg, ...)

Parameters:

b - the loaded picture file inside a byte-array

scalingFactor - factor which has to be used to prescale the image

Returns:

the BufferedImage created out of the picture

createBufferedImage

public BufferedImage createBufferedImage(byte[] b,
                                         double scalingFactor,
                                         boolean textureScaling,
                                         Insets cropTexture)

Creates a BufferedImage out of a picture (.gif, .jpg, ...) This method bases on a method from the original com.sun.j3d.utils.image.TextureLoader

Parameters:

b - the loaded picture file inside a byte-array

scalingFactor - factor which has to be used to prescale the image

textureScaling - scale to a size which fits to the J3D texture properties (width and height have to be a value equal to a power of two

Returns:

the BufferedImage created out of the picture

getClosestPowerOf2

public int getClosestPowerOf2(int value)

Evaluates a value which is a power of two and nearest to the given value

Parameters:

value - - input value to which the power of two value has to be searched

Returns:

the nearest power of two value

scaleBufferedImage

public BufferedImage scaleBufferedImage(BufferedImage inBImg,
                                        int w,
                                        int h)

Scales a BufferedImage to a new size using a smooth scaling algorithm (Image.SCALE_SMOOTH)

Parameters:

inBImg - input BufferedImage which has to be scaled

w - new width of the image

h - nwe height of the image

Returns:

the new, scaled BufferedImage