org.geotools.renderer.lite.gridcoverage2d

Class ZeroImageNode

Object

BaseCoverageProcessingNode

ZeroImageNode

All Implemented Interfaces:

CoverageProcessingNode

public class ZeroImageNode
extends BaseCoverageProcessingNode

Returns a constant image with the same data type, size and layout as the first source

Constructor Summary

Constructors

Constructor and Description
ZeroImageNode(Hints hints)

Method Summary

Modifier and Type	Method and Description
protected GridCoverage	execute() Subclasses MUST override this method in order to do the actual processing.

Methods inherited from class BaseCoverageProcessingNode

addSink, addSource, dispose, ensureNotNull, ensureSourceNotNull, getCoverageFactory, getDescription, getHints, getMaximumNumberOfSources, getName, getNumberOfSinks, getNumberOfSources, getOutput, getSink, getSinks, getSource, getSources, isDisposed, isExecuted, removeSink, removeSink, removeSource, removeSource, toString

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ZeroImageNode

public ZeroImageNode(Hints hints)

Method Detail

execute

protected GridCoverage execute()

Description copied from class: BaseCoverageProcessingNode

Subclasses MUST override this method in order to do the actual processing.

Note that this method is invoked through this framework hence it is run within a critical section. Be careful with what you do within this method since it is essentially an "alien" method running within a synch section, hence all sort of bad things can happen.

Specified by:

execute in class BaseCoverageProcessingNode

Returns:

a GridCoverage2D which is the result of the processing.