GeoTools : EPSG extensions

Module Maintainer:

Martin Desruisseaux



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Additional CRS beyong the one defined in the official EPSG database. The additional CRS are defined as Well Known Text (WKT) in a property file. At the difference of the legacy epsg-wkt module, only CRS not found in the SQL-backed EPSG database are defined in the property file.

This module contains 2 property files:

  • contains additional CRS defined by ESRI in the EPSG namespace.
  • contains additional CRS from other sources in the EPSG namespace.

Module Status

Module completed. Stable if no major issues are reported.

How to use

Just drop the JAR in the classpath. New EPSG codes made available by this plugin are listed in the two properties files mentioned above.

Future development

None planed at this time.


I have been using Mississippi Transverse Mercator (MSTM) from the site. The line in the EPSG is:

47500=PROJCS["NAD83 / Mississippi Transverse Mercator (MSTM)",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],TOWGS84[0,0,0],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",32.5],PARAMETER["central_meridian",-89.75],PARAMETER["scale_factor",0.9998335],PARAMETER["false_easting",500000],PARAMETER["false_northing",1300000],UNIT["meter",1],AUTHORITY["EPSG","47500"]]

I've added this line to the gt2-epsg-wkt-2.2.x.jar file so I could use the MSTM CRS. 


Posted by at Aug 13, 2007 14:48