RasterPaletteNodataSetter

Identifies the nodata value on a raster feature at the palette level.

The transformer will succeed in setting the specified nodata value only if the input raster band(s) have at least one palette and a nodata key has already been set on the band.

Input Ports

Input

Input features must contain raster geometries only.

Output Ports

Output

Features with the specified nodata value are output through this port.

Parameters

Nodata Value

A numeric value specifying the nodata value to be set on the palette. Multi-part interpretations (for example, RGB) may be specified as a comma-delimited value (for example, "10,20,30"). The original nodata value is discarded if it exists.

Usage Notes

• RGB and RGBA color models are supported by this transformer.
• This transformer supports raster band and palette selection. The RasterSelector can be used to modify selection.

Related Transformers

This transformer does not set the nodata value on the band level. To set the nodata value on the bands of a raster, use the RasterBandNodataSetter.

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Transformer Categories

Rasters

FME Licensing Level

FME Professional edition and above

Technical History

Associated FME function or factory: @RasterNodata

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Tags Keywords: raster grid band channel palette lookup LUT colormap colourmap null void value set modify flag