[GRASS-web] Probleme beim Transformieren von Koordinaten

Helmut Kudrnovsky hellik at web.de
Sat Aug 26 09:06:59 PDT 2017

>I’ve got a coordinates.txt with coordinates in Bessel (DHDN), Gauß-Krüger-4.
I want to transform the >coordinates into wgs84, UTM33 (region: Northeast
Germany / Baltic Sea).

in your try 1 and 2 for DHDN, +towgs84 parameter is missing there. in your
UTM definition, +datum=WGS84 is missing. never seen about +name=utm and

fwiw looking at the corresponding EPSG of these reference systems:

EPSG:32633 - WGS 84 / UTM zone 33N 

+proj=utm +zone=33 +datum=WGS84 +units=m +no_defs

EPSG:31468 - DHDN / 3-degree Gauss-Kruger zone 4 

+proj=tmerc +lat_0=0 +lon_0=12 +k=1 +x_0=4500000 +y_0=0 +ellps=bessel
+towgs84=598.1,73.7,418.2,0.202,0.045,-2.455,6.7 +units=m +no_defs


best regards
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