[Imports] ourFootPrints.de data import has started
emilie.laffray at gmail.com
Mon Jan 11 12:28:32 GMT 2010
2010/1/11 Ævar Arnfjörð Bjarmason <avarab at gmail.com>
> (http://www.ourfootprints.de/gps/mapsource-island_e.html) is an effort
> started in 2004 to create a free of change Garmin map of Iceland, for
> the past year I've been in contact with Thomas Ransberger who runs the
> project about getting his data into OpenStreetMap since we share
> similar goals.
> A few days ago Thomas provided me with GPX traces & a dump of the road
> data on his map to start with. That's 22MB of GPX traces and a 29MB
> .osm file (the whole of Iceland.osm is around 67MB by comparison).
> I've already imported the GPX data under a dedicated user account with
> the .osm data to follow soon.
> The import user:
> The raw data: http://github.com/avar/ourfootprints-data
> Import scripts / documentation:
> Here's the 29MB .osm file which is approximately what I'll be
> importing, after I've fixed up the source tags / highway tags etc.:
> !! DO NOT UPLOAD THIS
> The plan is basically to upload that as-is except change the tags to
> be e.g. ourfootprints:highway=residential instead of
> highway=residential. That way a lot of duplicate data will be added to
> the database temporarily until we manually review & sort it out by
> either deleting it, merging it in to have highway=residential. Most of
> the data users like the renderers, mkgmap etc. won't notice since the
> roads will use previously unused tags.
Someone in the French community recently used some basic SQL command with
Postgis to eliminate obvious merge problem. It worked better than we
expected. Maybe you would be interested.
http://wiki.openstreetmap.org/wiki/BMO contains most of the information
about how the differential import was done.
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