org.apache.batik.ext.awt.image.rendered
Class DisplacementMapRed

java.lang.Object
  org.apache.batik.ext.awt.image.rendered.AbstractRed
      org.apache.batik.ext.awt.image.rendered.DisplacementMapRed

All Implemented Interfaces:

RenderedImage, CachableRed

public class DisplacementMapRed
extends AbstractRed

This implementation of RenderableImage will render its input GraphicsNode on demand for tiles.

Version:

$Id: DisplacementMapRed.java 1733416 2016-03-03 07:07:13Z gadams $

Author:

Vincent Hardy

Field Summary

Fields inherited from class org.apache.batik.ext.awt.image.rendered.AbstractRed

bounds, cm, minTileX, minTileY, numXTiles, numYTiles, props, sm, srcs, tileGridXOff, tileGridYOff, tileHeight, tileWidth

Constructor Summary

DisplacementMapRed(CachableRed image, CachableRed offsets, ARGBChannel xChannel, ARGBChannel yChannel, float scaleX, float scaleY, RenderingHints rh)

Method Summary

WritableRaster	copyData(WritableRaster wr)
void	filterBL(Raster off, WritableRaster dst, int[] xTile, int[] xOff, int[] yTile, int[] yOff)
void	filterBLPre(Raster off, WritableRaster dst, int[] xTile, int[] xOff, int[] yTile, int[] yOff)
void	filterNN(Raster off, WritableRaster dst, int[] xTile, int[] xOff, int[] yTile, int[] yOff) Does displacement map using Nearest neighbor interpolation
Raster	getTile(int tileX, int tileY)
org.apache.batik.ext.awt.image.rendered.DisplacementMapRed.TileOffsets	getXOffsets(int xTile)
org.apache.batik.ext.awt.image.rendered.DisplacementMapRed.TileOffsets	getYOffsets(int yTile)

Methods inherited from class org.apache.batik.ext.awt.image.rendered.AbstractRed

copyBand, copyToRaster, getBounds, getColorModel, getData, getData, getDependencyRegion, getDirtyRegion, getHeight, getMinTileX, getMinTileY, getMinX, getMinY, getNumXTiles, getNumYTiles, getProperty, getPropertyNames, getSampleModel, getSources, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, getWidth, getXTile, getYTile, init, init, makeTile, updateTileGridInfo

Methods inherited from class java.lang.Object

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

Constructor Detail

DisplacementMapRed

public DisplacementMapRed(CachableRed image,
                          CachableRed offsets,
                          ARGBChannel xChannel,
                          ARGBChannel yChannel,
                          float scaleX,
                          float scaleY,
                          RenderingHints rh)

Parameters:

image - the image to distort

offsets - the displacement map

xChannel - defines the channel of off whose values will be on X-axis operation

yChannel - defines the channel of off whose values will be

scaleX - defines the scale factor of the filter operation on the X axis.

scaleY - defines the scale factor of the filter operation on the Y axis

rh - the rendering hints

Method Detail

copyData

public WritableRaster copyData(WritableRaster wr)

getTile

public Raster getTile(int tileX,
                      int tileY)

Specified by:

getTile in interface RenderedImage

Overrides:

getTile in class AbstractRed

getXOffsets

public org.apache.batik.ext.awt.image.rendered.DisplacementMapRed.TileOffsets getXOffsets(int xTile)

getYOffsets

public org.apache.batik.ext.awt.image.rendered.DisplacementMapRed.TileOffsets getYOffsets(int yTile)

filterBL

public void filterBL(Raster off,
                     WritableRaster dst,
                     int[] xTile,
                     int[] xOff,
                     int[] yTile,
                     int[] yOff)

filterBLPre

public void filterBLPre(Raster off,
                        WritableRaster dst,
                        int[] xTile,
                        int[] xOff,
                        int[] yTile,
                        int[] yOff)

filterNN

public void filterNN(Raster off,
                     WritableRaster dst,
                     int[] xTile,
                     int[] xOff,
                     int[] yTile,
                     int[] yOff)

Does displacement map using Nearest neighbor interpolation

Parameters:

off - the displacement map

dst - stores the filtered image. If null, a destination will be created. img and dst can refer to the same Raster, in which situation the img will be modified.