[bezema@lat-lon.de: Re: [martin.desruisseaux@geomatys.fr: Re:[MetaCRS] Introduction]]

[Martin Desruisseaux]

Landon Blake a écrit :
> How did GeoTools and deegree each choose to integrate the EPSG database? Are you tapping into the database directly, or did you convert the information in the EPSG database into another format? What plan or system does your project have in place to stay current with the EPSG database?

GeoTools taps into the database directly. The database maybe any of the 
following format:

- Access (the primary format distributed by EPSG) as an ODBC datasource.
- PostgreSQL.
- Oracle.
- HSQL (which can be embeded in a JAR for users
   who don't want to setup a database on their side).

Additionally it can also use converted forms. For example the PostGIS 
"spatial_ref_sys" table is converted from a subset of EPSG database. GeoTools 
can read this PostGIS table directly. It can also use a plain text file filled 
with WKT.

	Martin