[Proj] EPSG:28992 to EPSG:23031 conversion
Frank Warmerdam
warmerdam at pobox.com
Wed Oct 8 12:51:15 EDT 2008
Bart van den Eijnden (OSGIS) wrote:
> Hi Jean-Claude,
>
> I am using PROJ 4.4.9 so that should not be necessary or am I mistaken?
Bart,
It is necessary if ED50 is non-trivially different from WGS84 though my
understanding was that the differences were small. I personally suspect
the problem is either the sterea projection method (there are several
variations of this I believe) or your towgs84 parameters are not ideal.
Best regards,
--
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