Class Scale
- All Implemented Interfaces:
Serializable
,Operation
This operation is simply a wrapper for the JAI scale operation which allows me to arbitrarily scale and translate a
rendered image.
- Since:
- 2.3
- Author:
- Simone Giannecchini
- See Also:
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ScaleDescriptor
- Serialized Form
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Nested Class Summary
Nested classes/interfaces inherited from class OperationJAI
OperationJAI.Parameters
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Field Summary
Fields inherited from class OperationJAI
operation, RENDERED_MODE
Fields inherited from class Operation2D
PRIMARY_SOURCE_INDEX, SOURCE_0
Fields inherited from class AbstractOperation
descriptor
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected RenderedImage
createRenderedImage
(ParameterBlockJAI parameters, RenderingHints hints) Applies the JAI operation.getProperties
(RenderedImage data, CoordinateReferenceSystem crs, InternationalString name, MathTransform gridToCRS, GridCoverage2D[] sources, OperationJAI.Parameters parameters) Prepares the properties to be given to the coverage created by thederiveGridCoverage
method.protected void
handleJAIEXTParams
(ParameterBlockJAI parameters, ParameterValueGroup parameters2) Extension point for adding to the JAIParameterBlockJAI
object the parameters defined in theParameterValueGroup
, which can be read by the JAI-EXT operations.Methods inherited from class BaseScaleOperationJAI
deriveGridCoverage
Methods inherited from class OperationJAI
deriveCategory, deriveName, deriveRange, deriveSampleDimension, deriveUnit, doOperation, equals, extractSources, getJAI, getOperationDescriptor, getQuantitative, handleROINoDataInternal, handleROINoDataProperties, hashCode, prepareParameters, resampleToCommonGeometry
Methods inherited from class Operation2D
extractSources, getFactory
Methods inherited from class AbstractOperation
getDescription, getDocURL, getName, getNumSources, getParameters, getVendor, getVersion, toString
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Constructor Details
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Scale
public Scale()Default constructor.
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Method Details
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createRenderedImage
Description copied from class:OperationJAI
Applies the JAI operation. The operation name can be fetch fromOperationJAI.operation
. The JAI instance to use can be fetch fromOperationJAI.getJAI(java.awt.RenderingHints)
. The default implementation returns the following:getJAI(hints).createNS(OperationJAI.operation.getName(), parameters, hints)
- Overrides:
createRenderedImage
in classOperationJAI
- Parameters:
parameters
- The parameters to be given to JAI.hints
- The rendering hints to be given to JAI.- Returns:
- The result of JAI operation using the given parameters and hints.
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handleJAIEXTParams
Description copied from class:OperationJAI
Extension point for adding to the JAIParameterBlockJAI
object the parameters defined in theParameterValueGroup
, which can be read by the JAI-EXT operations.Notice that if you are using JAI, the new parameters will not be accepted by the
ParameterBlockJAI
instance.- Overrides:
handleJAIEXTParams
in classOperationJAI
- Parameters:
parameters
-ParameterBlockJAI
instance used by the current JAI-EXT/JAI operationparameters2
-ParameterValueGroup
instance containing input operation parameters
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getProperties
protected Map<String,?> getProperties(RenderedImage data, CoordinateReferenceSystem crs, InternationalString name, MathTransform gridToCRS, GridCoverage2D[] sources, OperationJAI.Parameters parameters) Description copied from class:OperationJAI
Prepares the properties to be given to the coverage created by thederiveGridCoverage
method. The default implementation returnsnull
.- Overrides:
getProperties
in classOperationJAI
- Parameters:
data
- TheRenderedImage
created by this operation.crs
- The coordinate reference system assigned to the coverage thisOperationJAI
will produce.name
- The name assigned to the coverage thisOperationJAI
will produce.gridToCRS
- The transform from grid tocrs
to be assigned to the coverage thisOperationJAI
will produce.sources
- The sources to be assigned to the coverage thisOperationJAI
will produce.parameters
- The parameters that were used by thisOperationJAI
.- Returns:
- a
Map
with the properties generated by thisOperationJAI
or null if we haven't any.
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