[MetaCRS] [Proj] Common SQLite-based dictionaries

[Even Rouault]

On Monday 03 August 2015 22:46:41 Martin Desruisseaux wrote:
> Le 03/08/15 22:37, Sebastiaan Couwenberg a écrit :
> > I can envision a project that takes the EPSG database and with a
> > collection of SQL scripts (patches) creates the database for proj, gdal
> > & friends. That would be compatible with the compromise when you apply
> > it to data instead of software. The EPSG ToS is just not very explicitly
> > about being allowed to distribute changes.
> 
> I think that the intend of EPSG term of use is to make sure that
> "EPSG:something" is understood in the same way by everyone. Applying
> patches with SQL scripts compromise this goal in the same way than
> modifying the data directly, unless we make clear that this is not
> anymore EPSG definitions.

Let's say we distribute a SQLite version of the PostgreSQL scripts unmodified 
(or within the allowed modifications). If the *software* that use it return an 
"incorrect" definition when querying EPSG:4326 (for example a WKT with AXIS 
stripped), that has nothing to do with the data being distributed. It is a 
bug/feature in the way the software interprets the data.

And if this database includes an extra proj.4 dedicated table with records 
like '4326', '+proj=longlat +datum=WGS84 +no_defs' or '4322', '+proj=longlat 
+ellps=WGS72 +towgs84=0,0,4.5,0,0,0.554,0.2263 +no_defs' that doesn't modify 
the original dataset.

> 
>     Martin
> 
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