Nope that is not how you are supposed to use it. CRSAuthorityFactory is not actually a factory - it is a "builder" that makes use of internal definitions to produce the object defined by the code you defined. The code is usually of the form "EPSG:4326" or some other number - "NAD27/UTM zone 11N" is a name.
If at all possible use the CRS utility class: - http://docs.codehaus.org/display/GEOTDOC/01+CRS+Helper+Class Just make sure you have one of the *epsg* plugins on the classpath and you are good to go. - http://docs.codehaus.org/display/GEOTDOC/03+Referencing If you really want to use this stuff directly: - http://docs.codehaus.org/display/GEOTDOC/09+Referencing+Factories You can use a name to look up the matching object but it is a very slow process. You need to create an IdentifiedObject with the correct name and then search for the CoordianteReferenceSystem that matches it. This functionality is only available through the AbstractAuthorityFactory class - it is not part of the formal GeoAPI interfaces. I would view this functionality as experimental. Since I don't have an example of "searching by name" in the docs yet let me write one up for you (but please review!) Cheers, Jody > Does anyone know how to use EPSGCRSAuthorityFactory? > In my code, I created a crs in this way: > CoordinateReferenceSystem crs; > EPSGCRSAuthorityFactory crsFactory = new EPSGCRSAuthorityFactory(); > crs = (CoordinateReferenceSystem) crsFactory.createObject("NAD27/UTM > zone 11N"); > The returned crs is null; > I change the parameter: > crs = (CoordinateReferenceSystem) crsFactory.createObject("EPSG:26910"); > to have a test it is still null. > Then what is the correct way to use EPSGCRSAuthorityFactory? > > Sun > > ------------------------------------------------------------------------ > Choose the right car based on your needs. Check out Yahoo! Autos new > Car Finder tool. > <http://us.rd.yahoo.com/evt=48518/*http://autos.yahoo.com/carfinder/;_ylc=X3oDMTE3NWsyMDd2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDY2FyLWZpbmRlcg--%20> > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > ------------------------------------------------------------------------ > > _______________________________________________ > Geotools-devel mailing list > Geotools-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geotools-devel > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
