[Geotools-gt2-users] [geotools-d] Coordinate transformation

[Harald W. <hw...@hs...>]

Hi,

i have to transform some Lat/Long coordinates to German Gauss-Krueger with 
datum shift. Using the existing c-program from the Proj.4-project 
i  execute the following program:

cs2cs -v proj=latlong +datum=WGS84 +to +proj=tmerc +ellps=bessel +lat_0=0 
+lon_0=12 +x_0=4500000 +towgs84=586,87,409

The program gets following coordinates as input:
10.69079E 51.8613N

And the result is :
4409847.20 5748278.19

I want to use some Java-Programs for that and realized that the Geotools 
include the former Seagis as well as the Proj4j.

I tried both but did not get any good results. Any help is appreciated 
here. I read in one Java-Class of Seagis, that transformation between 
different ellipsoids is not yet supported. Is that right? What about the 
Proj4j-package? Is it possible to do that transformation with this package?

Thanks in advance?

Harald



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