javax.media.jai
Class BorderExtenderReflect

java.lang.Object
  |
  +--javax.media.jai.BorderExtender
        |
        +--javax.media.jai.BorderExtenderReflect

All Implemented Interfaces:

Serializable

public final class BorderExtenderReflect

extends BorderExtender

A subclass of BorderExtender that implements border extension by filling all pixels outside of the image bounds with copies of the whole image. For example, the image:

|>
|\

if extended by adding two extra rows to the top and bottom and one extra column on the left and right sides, would become:

<| /|	|> |\	<| /|
\| <|	|/ |>	\| <|
<| /|	|> |\	<| /|
\| <|	|/ |>	\| <|
<| /|	|> |\	<| /|

This form of extension avoids discontinuities around the edges of the image.

See Also:

Serialized Form

Fields inherited from class javax.media.jai.BorderExtender

BORDER_COPY, BORDER_REFLECT, BORDER_WRAP, BORDER_ZERO

Method Summary

void	extend(WritableRaster raster, PlanarImage im) Fills in the portions of a given Raster that lie outside the bounds of a given PlanarImage with suitably reflected copies of the entire image.

Methods inherited from class javax.media.jai.BorderExtender

createInstance

Methods inherited from class java.lang.Object

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

Method Detail

extend

public final void extend(WritableRaster raster,
                         PlanarImage im)

Fills in the portions of a given Raster that lie outside the bounds of a given PlanarImage with suitably reflected copies of the entire image.

The portion of raster that lies within im.getBounds() is not altered.

Overrides:

extend in class BorderExtender

Parameters:

raster - The WritableRaster the border area of which is to be filled with suitably reflected copies of portions of the specified image.

im - The PlanarImage the data of which is to be reflected and used to fill the WritableRaster border.

Throws:

IllegalArgumentException - if either parameter is null.