RasterBandKeeper

Removes all unselected bands from a raster feature.

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Typical Uses

  • Removing raster bands to meet processing or format requirements.

How does it work?

The RasterBandKeeper receives raster features and removes any unselected bands.

If all bands are selected, the raster will remain unchanged.

On reading, raster features by default have all bands currently selected. The selection may be changed by using the RasterSelector.

Examples

Usage Notes

  • The RasterBandKeeper and RasterBandRemover perform similar functions. The RasterBandKeeper is more useful when removing a proportionately large number of bands, whereas the RasterBandRemover is more useful when removing a small number of bands.

Choosing a Raster Transformer

FME has an extensive selection of transformers for working with raster data. They can be generally categorized as working with whole rasters, bands, cells or palettes, and those designed for workflow control or combining raster with vector data.

For information on raster geometry and properties, see Rasters (IFMERaster).

Configuration

Input Ports

Output Ports

Parameters

This transformer has no parameters.

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.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.

Reference

Processing Behavior

Feature-Based

Feature Holding

No

Dependencies None
Aliases  
History  

FME Community

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Examples may contain information licensed under the Open Government Licence – Vancouver and/or the Open Government Licence – Canada.