[Gdal-dev] GEOCCS - Geocentric CS in OGR?

[Craig Miller]

I'm working throught the WKT spec in the SF COM document and it lists three
categories of SRSs:

Geographic - GOEGCS
Projected  - PROJCS
Geocentric - GEOCCS

>From what I can tell OGR has three categories too:

Geographic => IsGeographic()  - GEOGCS
Projected  => IsProjected()   - PROJCS
Local      => IsLocal()       - LOCALCS  or LOCAL_CS (according to OGR docs)

With this in mind...

- How are geocentric coordinate systems represented in OGR?
- If GEOCCS is supported, why isn't there a IsGeocentric() method?
- Is OGR the only product that supports the LOCALCS object?
- Is it LOCALCS or LOCAL_CS?

Thanks for the help,  :-)
Craig