Java Doc for MlibDFTOpImage.java in  » 6.0-JDK-Modules » Java-Advanced-Imaging » com » sun » media » jai » mlib » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » com.sun.media.jai.mlib 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


javax.media.jai.UntiledOpImage
   com.sun.media.jai.mlib.MlibDFTOpImage

MlibDFTOpImage
final class MlibDFTOpImage extends UntiledOpImage (Code)
An OpImage class that performs a "DFT" and "IDFT" operations.



Constructor Summary
public  MlibDFTOpImage(RenderedImage source, Map config, ImageLayout layout, EnumeratedParameter dataNature, boolean isForward, EnumeratedParameter scaleType)
     Constructs an MlibDFTOpImage.

Method Summary
protected  voidcomputeImage(Raster[] sources, WritableRaster dest, Rectangle destRect)
     Calculate the destination image from the source image.
public static  booleanisAcceptableSampleModel(SampleModel sm)
    
public  Point2DmapDestPoint(Point2D destPt)
     Computes the source point corresponding to the supplied point.
Parameters:
  destPt - the position in destination image coordinatesto map to source image coordinates.
public  Point2DmapSourcePoint(Point2D sourcePt)
     Computes the destination point corresponding to the supplied point.


Constructor Detail
MlibDFTOpImage
public MlibDFTOpImage(RenderedImage source, Map config, ImageLayout layout, EnumeratedParameter dataNature, boolean isForward, EnumeratedParameter scaleType)(Code)
Constructs an MlibDFTOpImage.
Parameters:
  source - a RenderedImage.
Parameters:
  layout - an ImageLayout optionally containing the tilegrid layout, SampleModel, and ColorModel, or null.
Parameters:
  dataNature - the nature of the source/destination data transform(real->complex, etc.).
Parameters:
  isForward - whether the transform is forward (negative exponent).
Parameters:
  scaleType - the scaling type of the transform.




Method Detail
computeImage
protected void computeImage(Raster[] sources, WritableRaster dest, Rectangle destRect)(Code)
Calculate the destination image from the source image.
Parameters:
  source - The source Raster; should be the whole image.
Parameters:
  dest - The destination WritableRaster; should be the whole image.
Parameters:
  destRect - The destination Rectangle; should equal the destinationimage bounds.



isAcceptableSampleModel
public static boolean isAcceptableSampleModel(SampleModel sm)(Code)



mapDestPoint
public Point2D mapDestPoint(Point2D destPt)(Code)
Computes the source point corresponding to the supplied point.
Parameters:
  destPt - the position in destination image coordinatesto map to source image coordinates. null.
throws:
  IllegalArgumentException - if destPt isnull.
since:
   JAI 1.1.2



mapSourcePoint
public Point2D mapSourcePoint(Point2D sourcePt)(Code)
Computes the destination point corresponding to the supplied point. null.
throws:
  IllegalArgumentException - if sourcePt isnull.
since:
   JAI 1.1.2



Methods inherited from javax.media.jai.UntiledOpImage
abstract protected void computeImage(Raster[] sources, WritableRaster dest, Rectangle destRect)(Code)(Java Doc)
public Raster computeTile(int tileX, int tileY)(Code)(Java Doc)
public Point[] getTileDependencies(int tileX, int tileY, int sourceIndex)(Code)(Java Doc)
public Rectangle mapDestRect(Rectangle destRect, int sourceIndex)(Code)(Java Doc)
public Rectangle mapSourceRect(Rectangle sourceRect, int sourceIndex)(Code)(Java Doc)

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