[postgis-users] Re: Re: new entry for spatial_ref_sys.sql - Austrian "standard" projection

[Michael Haberler]

ok, I'll dig out some reference and usage information for this projection

yes, I noticed the 60km offset when my points showed up in the wrong 
city ;-)

-Michael

Gabriel Ebner schrieb:
> On Sun, Jun 18, 2006 at 12:49:23PM +0200, Michael Haberler wrote:
>   
>> I got this projection example from a  local GIS company, and it seems to work for data from different sources so far
>>     
>
> Then it might be ok for your dataset, however it doesn't look like anything
> standard.  Do you notice a 150m shift between the dataset and other data (cf.
> datum transformation)?
>
>   
>> the only difference I can discern from EPSG 31287 is +lat_0=48 instead of  +lat_0=47.5
>>     
>
> And the possible datum shift.
>
>   
>> I'm not a projection expert.. is your parameter set equivalent to this change in results?
>>     
>
> There's just a difference of 60km between the y-coordinates. :)
> So the projection you've been given seems to be the right one for the dataset,
> even though it's not any one I know of.
>
>   Gabriel.
>   
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