[GRASS-user] Polish datum problem

Jarosław Jasiewicz jarekj at amu.edu.pl
Fri Apr 9 03:41:45 EDT 2010


Markus Neteler pisze:
> 2010/4/7 Jarek Jasiewicz <jarekj at amu.edu.pl>:
>   
>> Hi
>>
>> This is rather question for Polish GRASS users....
>>
>> Did anyone notice what had happed with "PUWG 1965" within Proj4 EPSG
>> database?
>>
>> Since PROJ version 4.6 is :
>>
>> <2173> +proj=sterea +lat_0=53.58333333333334 +lon_0=17.00833333333333
>> +k=0.9998 +x_0=3501000 +y_0=5999000 +ellps=krass +units=m +no_defs  <>
>>
>> but shoud be:
>> "+proj=sterea +lat_0=53.58333333333334 +lon_0=17.00833333333333 +k=0.9998
>> +x_0=3501000 +y_0=5999000 +ellps=krass
>> +towgs84=33.4,-146.6,-76.3,-0.359,-0.053,0.844,-0.84 +units=m +no_defs";
>>     
>
> Yes, I see that it disappeared.
> EvenR told me in IRC right now, that it is back in proj-trunk.
>
> http://trac.osgeo.org/proj/browser/trunk/proj/nad/epsg
>
>   
>> and it causes error when zone 1-4 is choosed:
>>
>> WARNING:
>> Datum <Pulkowo_1942_58> not recognised by GRASS and no parametrs found
>>
>>
>> And what had happend with "PUWG1942"? Dissapeared???
>>     
>
> It temporarily disappeared  in PROJ-4.7. :(
>
> Solutions:
> - update the epsg file from trunk (but I dunno if that's compliant)
> - we add the datums to lib/gis/datumtransform.table
> ?
>
> Markus
>   
Thanks for explanation Markus!
I simply use old epsg database (from proj 4.5) with actual proj 4.7 and 
it works for these datums I use

J.

BTW: none one have noticed it for over the year???


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