[OSM-newbies] Which projection on osm2pgsql?

Mulone mulone at rome.com
Mon Mar 15 12:17:55 GMT 2010


Hi guys,
I have an issue trying to import OSM data on PostGIS.
I download an xml file from the CloudMade site.
I use this script to import the file into postgis (on Windows):

./osm2pgsql -U userId -W -H myhost -d maps -p myprefix -S default.style -c
-l data.osm.bz2

This works, but when I visualise the spatial data on uDIG the projection is
wrong. The vertical axis is much shorter than it is on regular online maps
(e.g. openstreetmap.org, google maps, etc).

So I read that the OSM data is stored in mercator, and I tried to run the
same script with -m option:

./osm2pgsql -U userId -W -H myhost -d maps -p myprefix -S default.style -c
-m data.osm.bz2

The command works but then I can't visualise any data in uDig.
How can I load OSM data at the right projection?

Cheers,
Mulone


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Mulone
PhD student
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