[MS4W-Users] EPSG with 900913 ?
longred at myrealbox.com
Wed Feb 3 06:16:19 EST 2010
You're right - but even the latest postgis installation includes 900913 and
nevertheless it is usefull for OSM, Google, Bing, ...
----- Original Message -----
From: Ben Madin
To: Yves Moisan
Cc: ms4w-users at lists.maptools.org
Sent: Wednesday, February 03, 2010 5:45 AM
Subject: Re: [MS4W-Users] EPSG with 900913 ?
On 03/02/2010, at 2:52 , Yves Moisan wrote:
> Is there a reason why the EPSG file that comes with MS4W does not have
> the spherical mercator projection :
> <900913> +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0
> +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs
at a guess, because it is not an official EPSG projection...
I think the 900913 is a clever way of trying to spell google with numbers.
you should / could / might want to check out
http://www.spatialreference.org/ or http://www.epsg.org/
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