[gdal-dev] Question to ogr2ogr

[Andre Joost]

Am 03.06.2014 13:44, schrieb Jukka Rahkonen:

>
> ogr2ogr -f "ESRI Shapefile" -s_srs "+proj=tmerc +lat_0=0 +lon_0=12 +k=1
> +x_0=4500000 +y_0=0 +datum=potsdam +nadgrids=BETA2007.gsb +units=m +no_defs"
> -t_srs epsg:25832 output.shp input.shp
>

the +datum=potsdam can be misleading, this includes fixed +towgs84 
parameters.

I used this for cs2cs transformation:

cs2cs +proj=tmerc +lat_0=0 +lon_0=9 +x_0=3500000 +y_0=0 +k=1.000000 
+ellps=bessel +units=m +nadgrids=./BETA2007.gsb +wktext +to 
+init=epsg:4326 31467.txt >>out.txt

lon_0 and x_0 depending on your DHDN zone. The gsb file should be in the 
same folder, or include the full path to it.

HTH,
André Joost