[Gdal-dev] Grid based transformation with ogr2ogr

[Martin Daly]

> Can we have more than one authority entry for a single 
> object?  

The EBNF only allows one AUTHORITY code.

> The logical
> place for encoding special information in an authority node 
> would be on
> the DATUM but the datum already often has a meaningful 
> relationship to an
> EPSG code which I am loath to discard.
> Overall, I'm not too keen on embedding a lot of special information in
> the authority field.  I'd almost be keener on a special hack 
> to put it into
> the name.  I really wish WKT had a "comments" construct to 
> dump this sort
> of stuff into.

Agreed.  What about having both, e.g.
AUTHORITY["EPSG/PROJ.4","1234/PROJ.4 definition"]?  I'd be willing to
handle something like this in our WKT parsing.

M