[MetaCRS] Re: Spatial Reference OGC WKT definition

Howard Butler hobu.inc at gmail.com
Thu Oct 20 10:00:06 EDT 2011


On Oct 20, 2011, at 5:31 AM, Krunoslav Hrnjak wrote:

> Dear Sir,
>  You are listed as maintainer of http://spatialreference.org/ site. You did a great job and please take my regards and congratulations for it.
>  I have just noticed there is a difference in OGC WKT definition between speficication of GeoServer and definition on your site.
>  If you compare these two 
> http://docs.geoserver.org/stable/en/user/advanced/crshandling/customcrs.html 
> http://spatialreference.org/ref/sr-org/7202/prettywkt/
>  you can find out a difference in the way datum is defined:
> GeoServer:
> PROJCS["NAD83 / Austin",
> 
>   
> GEOGCS["NAD83",
> 
>     
> DATUM["North_American_Datum_1983",
> 
>       
> SPHEROID["GRS 1980", 6378137.0, 298.257222101],
> 
>       
> TOWGS84[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]],
> 
> Spatial Reference
> 
> PROJCS["ARM_PCS_3",
>     GEOGCS["ARM_GCS",
>         DATUM["ARM_D",
>             SPHEROID["Krasovsky_1940",6378245,298.300000000038]],
>         TOWGS84[0,0,0,0,0,0,0],
> 
> 
> As you can see in above case TOWGS84 tag is under DATUM in case of GeoServer definition while in case of Spatial Reference it is not.
> It seems like a bug to me. And it is becouse it I take over ogcwkt definition from spatial reference http://spatialreference.org/ref/sr-org/7202/ogcwkt/ I have to modify it first to be able to include it in GeoServer definition.
> 
> Please fix the bug.


Krunoslav,

Presumably the definition on spatialreference.org is simply out of date.  There's no timetable yet for when spatialreference.org will be updated with new definitions, but we'll try to take a look at this one once we do.  Thanks for the report.

Howard


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