Adding Custom Coordinate Systems

FME is used in many different countries around the world, and it is also used with a variety of custom datasets within each country. However, sometimes FME’s Coordinate System Gallery doesn't include the coordinate systems that are being used. In these cases, you will have to define the coordinate systems before FME can use them.

To allow sites to add their own coordinate systems, a file of local coordinate system definitions is automatically loaded and made available to each FME session. This file is called LocalCoordSysDefs.fme, and resides in the Reproject subfolder under the FME installation folder.

It contains a series of COORDINATE_SYSTEM_DEF, DATUM_DEF, ELLIPSOID_DEF, and UNIT_DEF lines that define additional, site-specific coordinate systems. You can edit these files to add your own definitions.

How to

For detailed information on defining and including your own coordinate systems, select Tools > Browse Coordinate Systems, and press the F1 key.