[Proj] DHDN / Gauss Krueger to WGS84

Roger Oberholtzer roger at opq.se
Fri Mar 30 03:23:03 PDT 2012


Bad form to reply to my own post, but...

> > I would add that epsg:31467 expands as:
> > 
> > +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

> > it seems to work. A reference point of:
> > 
> > x = 4459750 m  y = 5448182 m
> > 
> > is converted to
> > 
> > E11.446588 N49.169494
> 
> 
> If I use pj_transform(), I get:
>  
>   21.982946, 48.433278

I see that cs2cs gives the same incorrect result I get, and not the
expected result:

cs2cs +init=epsg:31467 +to +init=epsg:4326
4459750 5448182
21d58'58.607"E  48d25'59.803"N -15.126


Yours sincerely,

Roger Oberholtzer

OPQ Systems / Ramböll RST

Office: Int +46 10-615 60 20
Mobile: Int +46 70-815 1696
roger.oberholtzer at ramboll.se
________________________________________

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