Java Doc for IndexColorOperation.java in  » GIS » GeoTools-2.4.1 » org » geotools » coverage » processing » operation » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.coverage.processing.operation   Source Cross Reference   Class Diagram   Java Document (Java Doc)   org.geotools.coverage.processing.Operation2D    org.geotools.coverage.processing.operation.IndexColorOperation All known Subclasses:   org.geotools.coverage.processing.operation.Recolor, IndexColorOperation abstract class IndexColorOperation extends Operation2D (Code) Operation applied only on image's colors. This operation work only for source image using an IndexColorModel . version:    $Id: IndexColorOperation.java 26601 2007-08-19 23:16:35Z desruisseaux $ author:    Martin Desruisseauxorg.geotools.coverage.processing Constructor Summary public   IndexColorOperation(DefaultParameterDescriptorGroup descriptor)      Constructs an operation. Method Summary public  Coverage doOperation(ParameterValueGroup parameters, Hints hints)      Performs the color transformation. abstract protected  GridSampleDimension transformColormap(int[] ARGB, int band, GridSampleDimension sampleDimension, ParameterValueGroup parameters)      Transforms the supplied RGB colors. Constructor Detail IndexColorOperation public IndexColorOperation(DefaultParameterDescriptorGroup descriptor)(Code) Constructs an operation. Method Detail doOperation public Coverage doOperation(ParameterValueGroup parameters, Hints hints)(Code) Performs the color transformation. This method invokes the IndexColorOperation.transformColormap transformColormap(...) method with current RGB colormap, the source SampleDimension and the supplied parameters. Parameters:   parameters - The parameters. Parameters:   hints - Rendering hints (ignored in this implementation). throws:   IllegalArgumentException - if the candidate image do not use anIndexColorModel. transformColormap abstract protected GridSampleDimension transformColormap(int[] ARGB, int band, GridSampleDimension sampleDimension, ParameterValueGroup parameters)(Code) Transforms the supplied RGB colors. This method is automatically invoked by IndexColorOperation.doOperation(ParameterList) for each band in the source GridCoverage2D . The ARGB array contains the ARGB values from the current source and should be overridden with new ARGB values for the destination image. Parameters:   ARGB - Alpha, Red, Green and Blue components to transform. Parameters:   band - The band number, from 0 to the number of bands in the image -1. Parameters:   sampleDimension - The sample dimension of band band . Parameters:   parameters - The user-supplied parameters. A sample dimension identical to sampleDimension except for thecolors. Subclasses may conservatively returns sampleDimension . Fields inherited from org.geotools.coverage.processing.Operation2D final protected static int PRIMARY_SOURCE_INDEX(Code)(Java Doc) final public static ParameterDescriptor SOURCE_0(Code)(Java Doc) Methods inherited from org.geotools.coverage.processing.Operation2D protected boolean computeOnGeophysicsValues(ParameterValueGroup parameters)(Code)(Java Doc) protected ViewType extractSources(ParameterValueGroup parameters, String[] sourceNames, GridCoverage2D[] sources) throws ParameterNotFoundException, InvalidParameterValueException(Code)(Java Doc) protected static GridCoverageFactory getFactory(Hints hints)(Code)(Java Doc)