| java.lang.Object
 javax.media.jai.OperationDescriptorImpl
javax.media.jai.operator.CropDescriptor
| CropDescriptor | | public class CropDescriptor extends OperationDescriptorImpl (Code) | | An OperationDescriptor describing the "Crop" operation.
The Crop operation takes one rendered or renderable image and
crops the image to a specified rectangular area. The rectangular
area must not be empty, and must be fully contained with the source
image bounds.
For rendered images the supplied origin and dimensions are used to
determine the smallest rectangle with integral origin and dimensions which
encloses the rectangular area requested.
For renderable images the rectangular area is specified in
rendering-independent coordinates. When the image is rendered this area
will be mapped to rendered image coordinates using the affine transform
supplied for the rendering. The crop bounds in rendered coordinates are
defined to be the minimum bounding box of the rectangular area mapped to
rendered image coordinates.
Resource List
| Name | Value |
|---|
| GlobalName | Crop |
| LocalName | Crop |
| Vendor | com.sun.media.jai |
| Description | Crops the pixel values of a rendered image
to a specified rectangle. |
| DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/CropDescriptor.html |
| Version | 1.0 |
| arg0Desc | The x origin for each band. |
| arg1Desc | The y origin for each band. |
| arg2Desc | The width for each band. |
| arg3Desc | The height for each band. |
Parameter List
| Name | Class Type |
Default Value |
|---|
| x | Float |
NO_PARAMETER_DEFAULT |
| y | Float |
NO_PARAMETER_DEFAULT |
| width | Float |
NO_PARAMETER_DEFAULT |
| height | Float |
NO_PARAMETER_DEFAULT |
See Also: javax.media.jai.OperationDescriptor
See Also: |
| Method Summary | |
| public static RenderedOp | create(RenderedImage source0, Float x, Float y, Float width, Float height, RenderingHints hints)
Performs cropping to a specified bounding box.
Creates a ParameterBlockJAI from all
supplied arguments except hints and invokes
JAI.create(StringParameterBlockRenderingHints) .
See Also: JAI
See Also: ParameterBlockJAI
See Also: RenderedOp
Parameters:
source0 - RenderedImage source 0.
Parameters:
x - The x origin of the cropping operation.
Parameters:
y - The y origin of the cropping operation.
Parameters:
width - The width of the cropping operation.
Parameters:
height - The height of the cropping operation.
Parameters:
hints - The RenderingHints to use.May be null. | | public static RenderableOp | createRenderable(RenderableImage source0, Float x, Float y, Float width, Float height, RenderingHints hints)
Performs cropping to a specified bounding box.
Creates a ParameterBlockJAI from all
supplied arguments except hints and invokes
JAI.createRenderable(StringParameterBlockRenderingHints) .
See Also: JAI
See Also: ParameterBlockJAI
See Also: RenderableOp
Parameters:
source0 - RenderableImage source 0.
Parameters:
x - The x origin of the cropping operation.
Parameters:
y - The y origin of the cropping operation.
Parameters:
width - The width of the cropping operation.
Parameters:
height - The height of the cropping operation.
Parameters:
hints - The RenderingHints to use.May be null. | | public boolean | validateArguments(String modeName, ParameterBlock args, StringBuffer msg)
Validates the input source and parameters. |
| CropDescriptor | | public CropDescriptor()(Code) | | Constructor.
|
| validateArguments | | public boolean validateArguments(String modeName, ParameterBlock args, StringBuffer msg)(Code) | | Validates the input source and parameters.
In addition to the standard checks performed by the
superclass method, this method checks that "x", "y", "width",
and "height" form a rectangle that is not empty and that
is fully contained within the bounds of the source image.
|
| Methods inherited from javax.media.jai.OperationDescriptorImpl | public boolean arePropertiesSupported()(Code)(Java Doc)
protected static Class getDefaultSourceClass(String modeName)(Code)(Java Doc)
public Class getDestClass(String modeName)(Code)(Java Doc)
public Class getDestClass()(Code)(Java Doc)
public Object getInvalidRegion(String modeName, ParameterBlock oldParamBlock, RenderingHints oldHints, ParameterBlock newParamBlock, RenderingHints newHints, OperationNode node)(Code)(Java Doc)
public String getName()(Code)(Java Doc)
public int getNumParameters()(Code)(Java Doc)
public int getNumSources()(Code)(Java Doc)
public Class[] getParamClasses()(Code)(Java Doc)
public Object getParamDefaultValue(int index)(Code)(Java Doc)
public Object[] getParamDefaults()(Code)(Java Doc)
public Number getParamMaxValue(int index)(Code)(Java Doc)
public Number getParamMinValue(int index)(Code)(Java Doc)
public String[] getParamNames()(Code)(Java Doc)
public ParameterListDescriptor getParameterListDescriptor(String modeName)(Code)(Java Doc)
public PropertyGenerator[] getPropertyGenerators(String modeName)(Code)(Java Doc)
public PropertyGenerator[] getPropertyGenerators()(Code)(Java Doc)
public Class getRenderableDestClass()(Code)(Java Doc)
public Class[] getRenderableSourceClasses()(Code)(Java Doc)
public ResourceBundle getResourceBundle(Locale locale)(Code)(Java Doc)
public String[][] getResources(Locale locale)(Code)(Java Doc)
public Class[] getSourceClasses(String modeName)(Code)(Java Doc)
public Class[] getSourceClasses()(Code)(Java Doc)
public String[] getSourceNames()(Code)(Java Doc)
public String[] getSupportedModes()(Code)(Java Doc)
public boolean isImmediate()(Code)(Java Doc)
public boolean isModeSupported(String modeName)(Code)(Java Doc)
public boolean isRenderableSupported()(Code)(Java Doc)
public boolean isRenderedSupported()(Code)(Java Doc)
protected static Class[][] makeDefaultSourceClassList(String[] supportedModes, int numSources)(Code)(Java Doc)
public boolean validateArguments(String modeName, ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
public boolean validateArguments(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateParameters(String modeName, ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateParameters(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
public boolean validateRenderableArguments(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateRenderableSources(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateSources(String modeName, ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateSources(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
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