Jody Garnett a écrit :
In PostGis we look up in a table and grab the correct WKT, the reverse
opperation is much more trouble. Hense my questions about putting an
"SRID:#" hint in.
Oh, I think I misunderstood yours initial question. Yes, it should be
possible to attach an authority code to a CRS. If the CRS is parsed from
WKT, having the following WKT element should work (but I didn't tested -
if it doesn't work, let met known and I will fix it).
..., AUTHORITY["SRID", "some number"]
One philosophical question is whatever "SRID" should be treated as an
authority or not. But for now I don't see any obvious alternative.
If the CRS are parsed from WKT but the above-cited WKT element addition
is not pratical, I could try to add some hooks in the WKT parser API for
allowing users to perform this kind of addition programmatically.
Martin.
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