[mapserver-users] Re: Mapserver WMS seem not to read +towgs84 parameters

[Frank Warmerdam]

Rahkonen Jukka wrote:
> Thanks Frank,
> 
> Adding  +towgs84=0,0,0 made it.  Was it something that I should have been
> known?  

Jukka,

It does get mentioned in a variety of contexts but it is not surprising
that you wouldn't realize it.

> Does more fresh epsg file contain towgs84 parameters for epsg:3067
> and other comparable projections?

No.

There are lots and lots of EPSG coordinate systems for which GDAL and PROJ
do *not* know what to use for a datum shift and so effectively datum shifting
is not supported for them without manual intervention of some kind.  In
some cases there is no datum shift mechanism recorded in the original EPSG
database, while in others there are multiple ways of doing the datum shift
and there is no way of identifying the most appropriate way for any
particular requirement.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush    | Geospatial Programmer for Rent