[gdal-dev] OGR: How to access Coded Value Domains in File Geodatabases?

Stefan Keller sfkeller at gmail.com
Tue Jan 13 15:01:07 PST 2015


I'd like to support mwtoews proposal to expose a coded value domain as
a simple lookup table.
-S.

2015-01-07 18:03 GMT+01:00 Stefan Keller <sfkeller at gmail.com>:
> 2015-01-07 16:39 GMT+01:00 Even Rouault <even.rouault at spatialys.com>:
>
>> Hum I don't think so.
>
> Ok. And what about accessing it with Python GDAL/OGR API?
>
> --S.
>
> P.S.
>> Anyway interesting small enhancement to potentially sponsor.
> Right. Perhaps Esri could step in ;-)
>
>
> 2015-01-07 16:39 GMT+01:00 Even Rouault <even.rouault at spatialys.com>:
>> Le mercredi 07 janvier 2015 16:20:46, Stefan Keller a écrit :
>>> Hi Mike
>>>
>>> Thanks! That ticket is very insightful.
>>>
>>> I'm not sure though if there is already an agreement there about the
>>> best solution inside OGR code.
>>>
>>> In the meantime: Am I correct that there's an immediate solution by
>>> defining an query against table DipCategories of a FileGDB file with
>>> ogr2ogr (-sgl "select ")?
>>
>> Hum I don't think so. The suggestion in the ticket was to enhance the drivers
>> to expose the XML as a OGR layer and do a join. Or to do optional expansion of
>> the code into their descriptions. Another less ad-hac approach would be to
>> extent the recently added subtyping field mechanism to model such enumerated
>> fields and then have an option in ogr2ogr to do the expansion.
>> Anyway interesting small enhancement to potentially sponsor.
>>
>> Even
>>
>>
>> --
>> Spatialys - Geospatial professional services
>> http://www.spatialys.com


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