[OSM-talk] Navit format downloads

[Patrick Weber]

Nick

At the moment I feel that the shapefile export files you produce are way 
too limited to be of much use in GIS processing. The problem is that you 
are very restrictive in terms of the attributes you attach to the 
geometry, and vice versa the amount of geometry you exclude based on not 
supported attributes.
I know that if you  were to include all geometry and more importantly 
all attributes, than the shapefiles would become much bigger and lots of 
GIS systems would struggle to cope with the huge tables.

I propose as I have done for my OSM to Manifold GIS importer, to create 
one shapefile for points, lines, polygons, include in those shapefiles 
crucially OSM ID as well as the most commonl y used tags (highway, 
amenity, name, landuse .... ).
But then create a CSV file that will hold triplets of OSM ID, key, value 
to hold *all* of the remaining attribute data. That way, any information 
that a user might be interested in can easily be linked back to the 
geometry using the OSM ID.

Hope that helps

Cheers
Patrick

Nick Black wrote:
> Hello,
>
> Over at downloads.cloudmade.com, we've just added Navit format files
> for most countries of the world derived from OSM data.  The Navit
> files will be updated each week, shortly after planet is released.  We
> had a quick look at Navit on Frday afternoon - the files load and
> allow routing, but there are a few rough edges, like flight paths in
> Germany.
>
> Navit's been around for a while now and it seems like a cool project.
> Are many people in OSM using it regularly?  If so, what platforms are
> you using it on?  It would be awesome to get it running on Open Tom -
> its Linux / GTK based, so this should be feasible.
>
> You can grab the Europe Navit file from :
>
> http://downloads.cloudmade.com/europe
>
> The format was requested by Wolfgang Silbermayr from the Navit
> project.  I'd love to host more formats, so please shout out if
> there's something else that would be useful.
>
>
>   
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