[Proj] ED50 Spain Portugal to WSG 84

[Jose Gonçalves]

Assuming that the ED50 data are in UTM projection, you can use:

   cs2cs +proj=utm +ellps=intl +zone=30 +towgs84=-84,-107,-120 +to
+proj=latlong +datum=WGS84

Depending on the longitude the zone can also be 31 or 29 (Portugal is all
29). The datum shift parameters (+towgs84) introduce errors of a few meters.


Regards

José Gonçalves




2009/3/20 Marc Marí Dell'Olmo <marceivissa at gmail.com>

> Dear all,
>
> Can anyone tell me how to convert coordinates ED50 Spain/Portugal (not
> only ED50) to  WSG84 (google maps coordinates). I'm new in these
> issues.
>
> Can anyone tell me the instructions +proj, +k, +ellps, etc. that I
> have to use for conversion?
>
> Thank you,
>
> Marc
> _______________________________________________
> Proj mailing list
> Proj at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/proj
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.maptools.org/pipermail/proj/attachments/20090320/6438a898/attachment.htm