org.apache.batik.ext.awt.image.renderable
Class DisplacementMapRable8Bit

java.lang.Object
  org.apache.batik.ext.awt.image.renderable.AbstractRable
      org.apache.batik.ext.awt.image.renderable.AbstractColorInterpolationRable
          org.apache.batik.ext.awt.image.renderable.DisplacementMapRable8Bit

All Implemented Interfaces:

RenderableImage, DisplacementMapRable, Filter, FilterColorInterpolation

public class DisplacementMapRable8Bit
extends AbstractColorInterpolationRable
implements DisplacementMapRable

Implements a DisplacementMap operation, which takes pixel values from another image to spatially displace the input image

Version:

$Id: DisplacementMapRable8Bit.java 1733416 2016-03-03 07:07:13Z gadams $

Author:

Sheng Pei

Field Summary

Fields inherited from class org.apache.batik.ext.awt.image.renderable.AbstractColorInterpolationRable

csLinear

Fields inherited from class org.apache.batik.ext.awt.image.renderable.AbstractRable

props, srcs, stamp

Fields inherited from interface org.apache.batik.ext.awt.image.renderable.DisplacementMapRable

CHANNEL_A, CHANNEL_B, CHANNEL_G, CHANNEL_R

Fields inherited from interface java.awt.image.renderable.RenderableImage

HINTS_OBSERVED

Constructor Summary

DisplacementMapRable8Bit(List sources, double scale, ARGBChannel xChannelSelector, ARGBChannel yChannelSelector)

Method Summary

RenderedImage	createRendering(RenderContext rc)
Rectangle2D	getBounds2D() Returns the bounds of the current image.
Shape	getDependencyRegion(int srcIndex, Rectangle2D outputRgn) Returns the region of input data is is required to generate outputRgn.
Shape	getDirtyRegion(int srcIndex, Rectangle2D inputRgn) This calculates the region of output that is affected by a change in a region of input.
double	getScale() Returns the displacement scale factor
ARGBChannel	getXChannelSelector() Returns the xChannelSelector
ARGBChannel	getYChannelSelector() Returns the yChannelSelector
void	setScale(double scale) The displacement scale factor
void	setSources(List sources) Sets this filter sources.
void	setXChannelSelector(ARGBChannel xChannelSelector) Select which component values will be used for displacement along the X axis
void	setYChannelSelector(ARGBChannel yChannelSelector) Select which component values will be used for displacement along the Y axis

Methods inherited from class org.apache.batik.ext.awt.image.renderable.AbstractColorInterpolationRable

convertSourceCS, convertSourceCS, getOperationColorSpace, isColorSpaceLinear, setColorSpaceLinear

Methods inherited from class org.apache.batik.ext.awt.image.renderable.AbstractRable

createDefaultRendering, createScaledRendering, getHeight, getMinX, getMinY, getProperty, getPropertyNames, getSources, getTimeStamp, getWidth, init, init, init, init, isDynamic, touch

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.batik.ext.awt.image.renderable.FilterColorInterpolation

getOperationColorSpace, isColorSpaceLinear, setColorSpaceLinear

Methods inherited from interface org.apache.batik.ext.awt.image.renderable.Filter

getTimeStamp

Methods inherited from interface java.awt.image.renderable.RenderableImage

createDefaultRendering, createScaledRendering, getHeight, getMinX, getMinY, getProperty, getPropertyNames, getSources, getWidth, isDynamic

Constructor Detail

DisplacementMapRable8Bit

public DisplacementMapRable8Bit(List sources,
                                double scale,
                                ARGBChannel xChannelSelector,
                                ARGBChannel yChannelSelector)

Method Detail

getBounds2D

public Rectangle2D getBounds2D()

Description copied from interface: Filter

Returns the bounds of the current image. This should be 'in sync' with getMinX, getMinY, getWidth, getHeight

Specified by:

getBounds2D in interface Filter

Overrides:

getBounds2D in class AbstractRable

setScale

public void setScale(double scale)

The displacement scale factor

Specified by:

setScale in interface DisplacementMapRable

Parameters:

scale - can be any number.

getScale

public double getScale()

Returns the displacement scale factor

Specified by:

getScale in interface DisplacementMapRable

setSources

public void setSources(List sources)

Sets this filter sources.

Specified by:

setSources in interface DisplacementMapRable

Parameters:

sources - The list of images used in the operation.

setXChannelSelector

public void setXChannelSelector(ARGBChannel xChannelSelector)

Select which component values will be used for displacement along the X axis

Specified by:

setXChannelSelector in interface DisplacementMapRable

Parameters:

xChannelSelector - value is among R, G, B and A.

getXChannelSelector

public ARGBChannel getXChannelSelector()

Returns the xChannelSelector

Specified by:

getXChannelSelector in interface DisplacementMapRable

setYChannelSelector

public void setYChannelSelector(ARGBChannel yChannelSelector)

Select which component values will be used for displacement along the Y axis

Specified by:

setYChannelSelector in interface DisplacementMapRable

Parameters:

yChannelSelector - value is among R, G, B and A.

getYChannelSelector

public ARGBChannel getYChannelSelector()

Returns the yChannelSelector

Specified by:

getYChannelSelector in interface DisplacementMapRable

createRendering

public RenderedImage createRendering(RenderContext rc)

Specified by:

createRendering in interface RenderableImage

getDependencyRegion

public Shape getDependencyRegion(int srcIndex,
                                 Rectangle2D outputRgn)

Returns the region of input data is is required to generate outputRgn.

Specified by:

getDependencyRegion in interface Filter

Overrides:

getDependencyRegion in class AbstractRable

Parameters:

srcIndex - The source to do the dependency calculation for.

outputRgn - The region of output you are interested in generating dependencies for. The is given in the user coordiate system for this node.

Returns:

The region of input required. This is in the user coordinate system for the source indicated by srcIndex.

getDirtyRegion

public Shape getDirtyRegion(int srcIndex,
                            Rectangle2D inputRgn)

This calculates the region of output that is affected by a change in a region of input.

Specified by:

getDirtyRegion in interface Filter

Overrides:

getDirtyRegion in class AbstractRable

Parameters:

srcIndex - The input that inputRgn reflects changes in.

inputRgn - the region of input that has changed, used to calculate the returned shape. This is given in the user coordinate system of the source indicated by srcIndex.

Returns:

The region of output that would be invalid given a change to inputRgn of the source selected by srcIndex. this is in the user coordinate system of this node.