[MAPSERVER-USERS] WMS server with non-EPSG SRS?

[Frank Warmerdam]

Neil Best wrote:
> I have been trolling the list for any sense of attempts to use or prospects
> for ever using non-EPSG SRSs with a WMS server.  Somewhere I found a post, I
> think it was this list but don't have the link handy, from 2001 saying that
> there had been discussion to generalize the mechanism for advertising SRSs
> in order to go beyond those defined in the epsg support file that ships with
> proj, which suggests the possibility of advertising arbitrary projections,
> not just those in the assorted support files.  I find myself in the
> uncomfortable situation of trying to deliver my USGS-modified Albers equal
> area ("proj -v +init=other.extra:42303") to a client in USA Contiguous
> Lambert Conformal Conic ("proj -v init=esri:102004", also in esri.extra,
> http://spatialreference.org/ref/epsg/102004/).  I have seen proj and ogr2ogr
> respect the use of these other proj support files, but as far as I know
> Mapserver does not, never mind that the WMS spec appears to only accommodate
> EPSG-listed SRSs.  Is there any indication that this situation will change,
> either through an extension to the WMS spec or other means?

Neil,

The normal practice if you want a non-EPSG coordinate system to be usable
for WMS serving with MapServer is to just extend the epsg init file with
the definition.  Is this unacceptable for some reason?

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org