- All Implemented Interfaces:
BufferedImageOp,RasterOp
Raster to 2D coordinates
in the destination image or Raster.
The type of interpolation that is used is specified through a constructor,
either by a RenderingHints object or by one of the integer
interpolation types defined in this class.
If a RenderingHints object is specified in the constructor, the
interpolation hint and the rendering quality hint are used to set
the interpolation type for this operation. The color rendering hint
and the dithering hint can be used when color conversion is required.
Note that the following constraints have to be met:
- The source and destination must be different.
- For
Rasterobjects, the number of bands in the source must be equal to the number of bands in the destination.
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final intBicubic interpolation type.static final intBilinear interpolation type.static final intNearest-neighbor interpolation type. -
Constructor Summary
ConstructorsConstructorDescriptionAffineTransformOp(AffineTransform xform, int interpolationType) Constructs anAffineTransformOpgiven an affine transform and the interpolation type.AffineTransformOp(AffineTransform xform, RenderingHints hints) Constructs anAffineTransformOpgiven an affine transform. -
Method Summary
Modifier and TypeMethodDescriptioncreateCompatibleDestImage(BufferedImage src, ColorModel destCM) Creates a zeroed destination image with the correct size and number of bands.Creates a zeroed destinationRasterwith the correct size and number of bands.final BufferedImagefilter(BufferedImage src, BufferedImage dst) Transforms the sourceBufferedImageand stores the results in the destinationBufferedImage.final WritableRasterfilter(Raster src, WritableRaster dst) Transforms the sourceRasterand stores the results in the destinationRaster.final Rectangle2DgetBounds2D(BufferedImage src) Returns the bounding box of the transformed destination.final Rectangle2DgetBounds2D(Raster src) Returns the bounding box of the transformed destination.final intReturns the interpolation type used by this op.final Point2DgetPoint2D(Point2D srcPt, Point2D dstPt) Returns the location of the corresponding destination point given a point in the source.final RenderingHintsReturns the rendering hints used by this transform operation.final AffineTransformReturns the affine transform used by this transform operation.
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Field Details
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TYPE_NEAREST_NEIGHBOR
Nearest-neighbor interpolation type.- See Also:
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TYPE_BILINEAR
Bilinear interpolation type.- See Also:
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TYPE_BICUBIC
Bicubic interpolation type.- See Also:
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Constructor Details
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AffineTransformOp
Constructs anAffineTransformOpgiven an affine transform. The interpolation type is determined from theRenderingHintsobject. If the interpolation hint is defined, it will be used. Otherwise, if the rendering quality hint is defined, the interpolation type is determined from its value. If no hints are specified (hintsis null), the interpolation type isTYPE_NEAREST_NEIGHBOR.- Parameters:
xform- TheAffineTransformto use for the operation.hints- TheRenderingHintsobject used to specify the interpolation type for the operation.- Throws:
ImagingOpException- if the transform is non-invertible.- See Also:
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AffineTransformOp
Constructs anAffineTransformOpgiven an affine transform and the interpolation type.- Parameters:
xform- TheAffineTransformto use for the operation.interpolationType- One of the integer interpolation type constants defined by this class:TYPE_NEAREST_NEIGHBOR,TYPE_BILINEAR,TYPE_BICUBIC.- Throws:
ImagingOpException- if the transform is non-invertible.
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Method Details
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getInterpolationType
public final int getInterpolationType()Returns the interpolation type used by this op.- Returns:
- the interpolation type.
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filter
Transforms the sourceBufferedImageand stores the results in the destinationBufferedImage. If the color models for the two images do not match, a color conversion into the destination color model is performed. If the destination image is null, aBufferedImageis created with the sourceColorModel.The coordinates of the rectangle returned by
getBounds2D(BufferedImage)are not necessarily the same as the coordinates of theBufferedImagereturned by this method. If the upper-left corner coordinates of the rectangle are negative then this part of the rectangle is not drawn. If the upper-left corner coordinates of the rectangle are positive then the filtered image is drawn at that position in the destinationBufferedImage.An
IllegalArgumentExceptionis thrown if the source is the same as the destination.- Specified by:
filterin interfaceBufferedImageOp- Parameters:
src- TheBufferedImageto transform.dst- TheBufferedImagein which to store the results of the transformation.- Returns:
- The filtered
BufferedImage. - Throws:
IllegalArgumentException- ifsrcanddstare the sameImagingOpException- if the image cannot be transformed because of a data-processing error that might be caused by an invalid image format, tile format, or image-processing operation, or any other unsupported operation.
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filter
Transforms the sourceRasterand stores the results in the destinationRaster. This operation performs the transform band by band.If the destination
Rasteris null, a newRasteris created. AnIllegalArgumentExceptionmay be thrown if the source is the same as the destination or if the number of bands in the source is not equal to the number of bands in the destination.The coordinates of the rectangle returned by
getBounds2D(Raster)are not necessarily the same as the coordinates of theWritableRasterreturned by this method. If the upper-left corner coordinates of rectangle are negative then this part of the rectangle is not drawn. If the coordinates of the rectangle are positive then the filtered image is drawn at that position in the destinationRaster.- Specified by:
filterin interfaceRasterOp- Parameters:
src- TheRasterto transform.dst- TheRasterin which to store the results of the transformation.- Returns:
- The transformed
Raster. - Throws:
ImagingOpException- if the raster cannot be transformed because of a data-processing error that might be caused by an invalid image format, tile format, or image-processing operation, or any other unsupported operation.
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getBounds2D
Returns the bounding box of the transformed destination. The rectangle returned is the actual bounding box of the transformed points. The coordinates of the upper-left corner of the returned rectangle might not be (0, 0).- Specified by:
getBounds2Din interfaceBufferedImageOp- Parameters:
src- TheBufferedImageto be transformed.- Returns:
- The
Rectangle2Drepresenting the destination's bounding box.
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getBounds2D
Returns the bounding box of the transformed destination. The rectangle returned will be the actual bounding box of the transformed points. The coordinates of the upper-left corner of the returned rectangle might not be (0, 0).- Specified by:
getBounds2Din interfaceRasterOp- Parameters:
src- TheRasterto be transformed.- Returns:
- The
Rectangle2Drepresenting the destination's bounding box.
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createCompatibleDestImage
Creates a zeroed destination image with the correct size and number of bands. ARasterFormatExceptionmay be thrown if the transformed width or height is equal to 0.If
destCMis null, an appropriateColorModelis used; thisColorModelmay have an alpha channel even if the sourceColorModelis opaque.- Specified by:
createCompatibleDestImagein interfaceBufferedImageOp- Parameters:
src- TheBufferedImageto be transformed.destCM-ColorModelof the destination. If null, an appropriateColorModelis used.- Returns:
- The zeroed destination image.
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createCompatibleDestRaster
Creates a zeroed destinationRasterwith the correct size and number of bands. ARasterFormatExceptionmay be thrown if the transformed width or height is equal to 0.- Specified by:
createCompatibleDestRasterin interfaceRasterOp- Parameters:
src- TheRasterto be transformed.- Returns:
- The zeroed destination
Raster.
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getPoint2D
Returns the location of the corresponding destination point given a point in the source. IfdstPtis specified, it is used to hold the return value.- Specified by:
getPoint2Din interfaceBufferedImageOp- Specified by:
getPoint2Din interfaceRasterOp- Parameters:
srcPt- ThePoint2Dthat represents the source point.dstPt- ThePoint2Din which to store the result.- Returns:
- The
Point2Din the destination that corresponds to the specified point in the source.
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getTransform
Returns the affine transform used by this transform operation.- Returns:
- The
AffineTransformassociated with this op.
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getRenderingHints
Returns the rendering hints used by this transform operation.- Specified by:
getRenderingHintsin interfaceBufferedImageOp- Specified by:
getRenderingHintsin interfaceRasterOp- Returns:
- The
RenderingHintsobject associated with this op.
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