FME Transformers: 2024.1

Related Transformers


Clips raster features using pixel bounds instead of ground coordinates, and optionally adds cells around the perimeter.

Jump to Configuration

Typical Uses

  • Clipping a portion of a raster based on number of pixels instead of ground coordinates
  • Adding a frame of empty cells around a raster or subset of a raster

How does it work?

The RasterSubsetter accepts raster features, and clips them according to the origin and number of pixels defined.

The subset is defined by a starting column and row, and the number of columns and rows (that is, cells) to be included.

The starting column and row position are offset from the raster origin (0,0), in the upper left corner of the raster. For more information on raster structure, see Raster.

The clipped raster (subset) may be padded with empty cells, with settings available for top, bottom, left and right.

This transformer is unaffected by raster band and palette selection.


Usage Notes

  • To superset a raster, set the Subset to include the entire raster and add Padding.
  • To clip a raster by spatial extents, use the Clipper.

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).


Input Ports

Output Ports


Editing Transformer Parameters

Transformer parameters can be set by directly entering values, using expressions, or referencing other elements in the workspace such as attribute values or user parameters. Various editors and context menus are available to assist. To see what is available, click beside the applicable parameter.

For more information, see Transformer Parameter Menu Options.


Processing Behavior


Feature Holding


Dependencies None

FME Community

The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.

Search for all results about the RasterSubsetter on the FME Community.


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