org.apache.batik.ext.awt.image.renderable
Class GaussianBlurRable8Bit

java.lang.Object
  extended by org.apache.batik.ext.awt.image.renderable.AbstractRable
      extended by org.apache.batik.ext.awt.image.renderable.AbstractColorInterpolationRable
          extended by org.apache.batik.ext.awt.image.renderable.GaussianBlurRable8Bit
All Implemented Interfaces:
RenderableImage, Filter, FilterColorInterpolation, GaussianBlurRable

public class GaussianBlurRable8Bit
extends AbstractColorInterpolationRable
implements GaussianBlurRable

GaussianBlurRable implementation


Field Summary
static double eps
           
 
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 java.awt.image.renderable.RenderableImage
HINTS_OBSERVED
 
Constructor Summary
GaussianBlurRable8Bit(Filter src, double stdevX, double stdevY)
           
 
Method Summary
 RenderedImage createRendering(RenderContext rc)
           
static boolean eps_abs_eq(double f1, double f2)
           
static boolean eps_eq(double f1, double f2)
           
 Rectangle2D getBounds2D()
          Grow the source's bounds
 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.
 Filter getSource()
          Returns the source of the blur operation
 double getStdDeviationX()
          Returns the deviation along the x-axis, in user space.
 double getStdDeviationY()
          Returns the deviation along the y-axis, in user space.
 void setSource(Filter src)
          Sets the source of the blur operation
 void setStdDeviationX(double stdDeviationX)
          The deviation along the x axis, in user space.
 void setStdDeviationY(double stdDeviationY)
          The deviation along the y axis, in user space.
 
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
 

Field Detail

eps

public static final double eps
See Also:
Constant Field Values
Constructor Detail

GaussianBlurRable8Bit

public GaussianBlurRable8Bit(Filter src,
                             double stdevX,
                             double stdevY)
Method Detail

setStdDeviationX

public void setStdDeviationX(double stdDeviationX)
The deviation along the x axis, in user space.

Specified by:
setStdDeviationX in interface GaussianBlurRable
Parameters:
stdDeviationX - should be greater than zero.

setStdDeviationY

public void setStdDeviationY(double stdDeviationY)
The deviation along the y axis, in user space.

Specified by:
setStdDeviationY in interface GaussianBlurRable
Parameters:
stdDeviationY - should be greater than zero

getStdDeviationX

public double getStdDeviationX()
Returns the deviation along the x-axis, in user space.

Specified by:
getStdDeviationX in interface GaussianBlurRable

getStdDeviationY

public double getStdDeviationY()
Returns the deviation along the y-axis, in user space.

Specified by:
getStdDeviationY in interface GaussianBlurRable

setSource

public void setSource(Filter src)
Sets the source of the blur operation

Specified by:
setSource in interface GaussianBlurRable
Parameters:
src - image to blurred.

getBounds2D

public Rectangle2D getBounds2D()
Grow the source's bounds

Specified by:
getBounds2D in interface Filter
Overrides:
getBounds2D in class AbstractRable

getSource

public Filter getSource()
Returns the source of the blur operation

Specified by:
getSource in interface GaussianBlurRable

eps_eq

public static boolean eps_eq(double f1,
                             double f2)

eps_abs_eq

public static boolean eps_abs_eq(double f1,
                                 double f2)

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.


Copyright © 2008 Apache Software Foundation. All Rights Reserved.