[OSM-dev] Austrian National Grid <-> latlon

[Igor Podolskiy]

Hi Nick,

 > [...]
> I'd presume there's a similar
> Austrian national grid  [...]
yes, there is something like that :) A quick search brought up a list of 
EPSG codes for Austria [1] published by Bundesamt für Eich- und 
Vermessungswesen (Federal Office for Metrology and Survey). You will 
need the codes marked with "new" ("neu") in the first column.

According to this presentation from University of Salzburg [2], the 
Lambert one is used for low-scale maps (< 1:500000), and the 
Gauss-Krüger projections are used for 1:50000 and 1:200000 topographic 
maps. And, of course, there is a plan for an UTM transition... There is 
also a page in English about Austrian map projections [3].

Please take everything I say with a grain of salt - I'm German and quite 
surprised that the Austrian projection system is _that_ complex. We more 
or less just use EPSG:31467 here :) Just thought it would be simpler for 
me to search for the German language resources.

And, as Richard said, proj.4 and spatialreference.org are your friends ;)

Hope that helps
Igor

[1] 
http://www.bev.gv.at/pls/portal/docs/PAGE/BEV_PORTAL_CONTENT_ALLGEMEIN/0100_NEWS/0150_ARCHIV/ARCHIV_2007/NEUE%20EPSG%20-%20CODES%20FUER%20OESTERREICH/PROJEKTIONEN_TRANSF.PDF

[2] http://www.uni-salzburg.at/pls/portal/docs/1/105997.PDF

[3] http://www.mapref.org/MapProjectionsAT.html