org.geotools.coverage.processing.operation
Class Absolute

Object
  extended by AbstractOperation
      extended by Operation2D
          extended by OperationJAI
              extended by Absolute
All Implemented Interfaces:
Serializable, Operation

public class Absolute
extends OperationJAI

Computes the mathematical absolute value of each sample value.

Name: "Absolute"
JAI operator: "Absolute"
Parameters:

Name Class Default value Minimum value Maximum value
"Source" GridCoverage2D N/A N/A N/A

Since:
2.2
Author:
Martin Desruisseaux (IRD)
See Also:
Operations.absolute(org.opengis.coverage.Coverage), AbsoluteDescriptor, Serialized Form
Module:
modules/library/coverage (gt-coverage.jar)

Nested Class Summary
 
Nested classes/interfaces inherited from class OperationJAI
OperationJAI.Parameters
 
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
 
Constructor Summary
Absolute()
          Constructs a default "Absolute" operation.
 
Method Summary
protected  NumberRange deriveRange(NumberRange[] ranges, OperationJAI.Parameters parameters)
          Returns the expected range of values for the resulting image.
 
Methods inherited from class OperationJAI
createRenderedImage, deriveCategory, deriveGridCoverage, deriveName, deriveSampleDimension, deriveUnit, doOperation, equals, getJAI, getOperationDescriptor, getProperties, getQuantitative, prepareParameters, resampleToCommonGeometry
 
Methods inherited from class Operation2D
computeOnGeophysicsValues, extractSources, getFactory
 
Methods inherited from class AbstractOperation
ensureNonNull, getDescription, getDocURL, getName, getNumSources, getParameters, getProcessor, getVendor, getVersion, hashCode, toString
 
Methods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Absolute

public Absolute()
Constructs a default "Absolute" operation.

Method Detail

deriveRange

protected NumberRange deriveRange(NumberRange[] ranges,
                                  OperationJAI.Parameters parameters)
Returns the expected range of values for the resulting image.

Overrides:
deriveRange in class OperationJAI
Parameters:
ranges - The range of values from every sources. For unary operations like "GradientMagnitude", this array has a length of 1. For binary operations like "add" and "multiply", this array has a length of 2.
parameters - Parameters, rendering hints and coordinate reference system to use.
Returns:
The range of values to use in the destination image, or null if unknow.


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