| java.lang.Object
 javax.media.jai.OperationDescriptorImpl
javax.media.jai.operator.PeriodicShiftDescriptor
| PeriodicShiftDescriptor | | public class PeriodicShiftDescriptor extends OperationDescriptorImpl (Code) | | An OperationDescriptor describing the "PeriodicShift"
operation.
The destination image of the "PeriodicShift" operation is the
infinite periodic extension of the source image with horizontal and
vertical periods equal to the image width and height, respectively,
shifted by a specified amount along each axis and clipped to the
bounds of the source image. Thus for each band b the destination
image sample at location (x,y) is defined by:
if(x < width - shiftX) {
if(y < height - shiftY) {
dst[x][y][b] = src[x + shiftX][y + shiftY][b];
} else {
dst[x][y][b] = src[x + shiftX][y - height + shiftY][b];
}
} else {
if(y < height - shiftY) {
dst[x][y][b] = src[x - width + shiftX][y + shiftY][b];
} else {
dst[x][y][b] = src[x - width + shiftX][y - height + shiftY][b];
}
}
where shiftX and shiftY denote the translation factors
along the X and Y axes, respectively.
Resource List
| Name | Value |
|---|
| GlobalName | PeriodicShift |
| LocalName | PeriodicShift |
| Vendor | com.sun.media.jai |
| Description | Computes the periodic translation of an image. |
| DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/PeriodicShiftDescriptor.html |
| Version | 1.0 |
| arg0Desc | The displacement in the X direction. |
| arg1Desc | The displacement in the Y direction. |
Parameter List
| Name | Class Type |
Default Value |
|---|
| shiftX | java.lang.Integer |
sourceWidth/2 |
| shiftY | java.lang.Integer |
sourceHeight/2 |
See Also: javax.media.jai.OperationDescriptor |
| PeriodicShiftDescriptor | | public PeriodicShiftDescriptor()(Code) | | Constructor.
|
| validateArguments | | public boolean validateArguments(String modeName, ParameterBlock args, StringBuffer msg)(Code) | | Validates the input parameters.
In addition to the standard checks performed by the
superclass method, this method checks that "shiftX" and
"shiftY" are between 0 and the source image width and
height, respectively.
|
| 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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