[Proj] DHDN / Gauss Krueger to WGS84

[Hermann Peifer]

On 30/03/2012 15:37, Roger Oberholtzer wrote:

>
> <31468>  +proj=tmerc +lat_0=0 +lon_0=12 +k=1 +x_0=4500000 +y_0=0 +ellps=bessel +towgs84=582,105,414,1.04,0.35,-3.08,8.3 +units=m +no_defs<>
>

I am not sure about the 10 metres difference, but I suggest that for 
achieving more accurate results, you make use of the grid shift 
transformation:

+nadgrids=path/to//BETA2007.gsb


Hermann