Assigns a specified local coordinate system to features, without modifying geometry or coordinates.

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Typical Uses

  • Adding missing local coordinate systems
  • Adding local coordinate systems when the features’ original format does not support them.
  • Fixing incorrect local coordinate systems

How does it work?

The LocalCoordinateSystemSetter receives any feature and assigns a specified local coordinate system to it. No geometry is modified, and data is not reprojected.

The local coordinate system may be either Equidistant (AZMED) or Equal Area (AZMEA), and a choice of ground units is provided.

The local coordinate system is mapped to a true coordinate system by selecting that coordinate system and entering the X and Y coordinates that match 0,0 in the local coordinate system

Note that Z coordinates are not considered, and so areas or distances are best preserved for geometry at an ellipsoid height of zero (0) meters.

If a feature already has a coordinate system assigned (local or otherwise), it will be overwritten.


Usage Notes

  • If ground units need adjustment to match the coordinate system, consider using a Scaler prior to this transformer.

Working With Coordinate System Transformers

FME inherently supports coordinate system transformations and reprojections.


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.