Sets the cell origin point within cells in a raster.

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Typical Uses

  • Adjusting cell origins to align data from varying formats or sources.
  • Adjusting the position, relative to cells, of points produced by vectorizing rasters.
  • Adjusting a raster’s cell origin to meet format or processing requirements.

How does it work?

The RasterCellOriginSetter receives raster features and sets the Cell Origin raster property to coordinates between 0,0 and 1,1.

The cell origin differs from the raster origin. The cell origin is a point of reference within every cell, whereas the raster origin refers to point of origin of the entire raster.

0,0 represents the lower left corner of the cell, and 1,1 the upper right.

Lower left (0,0) and center (0.5,0.5) cell origins are common among raster formats, and sometimes need adjustment to align features from different sources.

This transformer is unaffected by raster band and palette selection.


Usage Notes

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

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.


Processing Behavior


Feature Holding


Dependencies None

FME Community

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