[Mapbender-users] Projection to DHDN3 GK Zone3 EPSG:31467

[a.borgardt at landkreis-cuxhaven.de]

 Moin Boris,

after applying the suggested changes, Q-GIS reports the following error:

<?xml version='1.0' encoding="UTF-8" standalone="no" ?>
<!DOCTYPE ServiceExceptionReport SYSTEM "http://schemas.opengis.net/wms/1.1.1/exception_1_1_1.dtd">
<ServiceExceptionReport version="1.1.1">
<ServiceException>
msProcessProjection(): Projection library error. unknown projection id
</ServiceException>
</ServiceExceptionReport>

I changed the BETA2007.gsb-path to /usr/share/proj/. 

Andreas

> -----Original Message-----
> From: Leukert, Boris [mailto:boris.leukert at wald-und-holz.nrw.de] 
> Sent: Tuesday, September 18, 2012 1:50 PM
> To: Mapbender User List
> Subject: Re: [Mapbender-users] Projection to DHDN3 GK Zone3 EPSG:31467
> 
> Hi Andreas,
> I'm using the following entries to reproject from EPSG 31467 
> to UTM and it works fine:
> 
> PROJ.4 epsg file:
> <31467> +proj=tmerc +lat_0=0 +lon_0=9 +k=1 +x_0=3500000 
> +y_0=0 +ellps=bessel +datum=potsdam +units=m +no_defs 
> +nadgrids=/opt/libproj/share/proj/BETA2007.gsb +wktext  <>
> 
> PostGIS table spatial_ref_sys:
> UPDATE spatial_ref_sys
>    SET proj4text = '+proj=tmerc +lat_0=0 +lon_0=9 +k=1 
> +x_0=3500000 +y_0=0 +ellps=bessel +datum=potsdam +units=m 
> +no_defs +nadgrids=/opt/libproj/share/proj/BETA2007.gsb +wktext '
>  WHERE srid = 31467;
> 
> Please change the directory "/opt/libproj/share/proj/" to the 
> directory of your installation where the file BETA2007.gsb is located.
> 
> Best regards,
> Boris
> 
>> -----Ursprüngliche Nachricht-----
>>Von: mapbender_users-bounces at lists.osgeo.org 
>> [mailto:mapbender_users-bounces at lists.osgeo.org] Im Auftrag 
>> von a.borgardt at landkreis-cuxhaven.de
>> Gesendet: Dienstag, 18. September 2012 13:20
>> An: mapbender_users at lists.osgeo.org
>> Betreff: [Mapbender-users] Projection to DHDN3 GK Zone3 EPSG:31467
>> 
>> Hi Mapbenders,
>> 
>> I'm trying to project a wms with the change epsg button. The 
>> function works, but the resulting coordinates are not 
>> correct. They differ about 32m to west and about 175m to the 
>> south to a "real" dhdn-shape. I tried two proj4-parameters in 
>> the spatial_ref_sys table for epsg 31467:
>> 
>> +proj=tmerc +lat_0=0 +lon_0=9 +k=1.000000 +x_0=3500000 +y_0=0 
>> +ellps=bessel +datum=potsdam +units=m +no_defs proj=tmerc +lat_0=0 
>> ++lon_0=9 +k=1.000000 +x_0=3500000 +y_0=0 ellps=bessel +datum=potsdam 
>> ++nadgrids=BeTA2007 +units=m +no_defs
>> 
>> but nothing changes.
>> 
>> Thanks for any help!
>> 
>> Best regards
>> 
>> Andreas
>> 
>> --
>> Dipl.-Geol. Andreas Borgardt
>> Landkreis Cuxhaven
>> 06 - GIS-Service
>> Tel.: 04721/66 23 68
>> E-Mail: a.borgardt at landkreis-cuxhaven.de
> --
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