org.geotools.coverage.processing.operation
Class Exp

java.lang.Object
  extended by org.geotools.coverage.processing.AbstractOperation
      extended by org.geotools.coverage.processing.Operation2D
          extended by org.geotools.coverage.processing.OperationJAI
              extended by org.geotools.coverage.processing.operation.Exp
All Implemented Interfaces:
java.io.Serializable, org.opengis.coverage.processing.Operation

public class Exp
extends OperationJAI

Takes the exponential of the sample values of a coverage.

Name: "Exp"
JAI operator: "Exp"
Parameters:

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

Since:
2.2
Version:
$Id: Exp.java 30643 2008-06-12 18:27:03Z acuster $
Author:
Martin Desruisseaux (IRD)
See Also:
Operations.exp(org.opengis.coverage.Coverage), ExpDescriptor, Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.geotools.coverage.processing.OperationJAI
OperationJAI.Parameters
 
Field Summary
 
Fields inherited from class org.geotools.coverage.processing.OperationJAI
operation, RENDERED_MODE
 
Fields inherited from class org.geotools.coverage.processing.Operation2D
PRIMARY_SOURCE_INDEX, SOURCE_0
 
Fields inherited from class org.geotools.coverage.processing.AbstractOperation
descriptor
 
Constructor Summary
Exp()
          Constructs a default "Exp" 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 org.geotools.coverage.processing.OperationJAI
createRenderedImage, deriveCategory, deriveGridCoverage, deriveName, deriveSampleDimension, deriveUnit, doOperation, equals, getJAI, getOperationDescriptor, getProperties, getQuantitative, prepareParameters, resampleToCommonGeometry
 
Methods inherited from class org.geotools.coverage.processing.Operation2D
computeOnGeophysicsValues, extractSources, getFactory
 
Methods inherited from class org.geotools.coverage.processing.AbstractOperation
ensureNonNull, getDescription, getDocURL, getName, getNumSources, getParameters, getProcessor, getVendor, getVersion, hashCode, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Exp

public Exp()
Constructs a default "Exp" 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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