<br><br><div class="gmail_quote">2010/1/11 Ævar Arnfjörð Bjarmason <span dir="ltr"><<a href="mailto:avarab@gmail.com">avarab@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
ourFootPrints.de<br>
(<a href="http://www.ourfootprints.de/gps/mapsource-island_e.html" target="_blank">http://www.ourfootprints.de/gps/mapsource-island_e.html</a>) is an effort<br>
started in 2004 to create a free of change Garmin map of Iceland, for<br>
the past year I've been in contact with Thomas Ransberger who runs the<br>
project about getting his data into OpenStreetMap since we share<br>
similar goals.<br>
<br>
A few days ago Thomas provided me with GPX traces & a dump of the road<br>
data on his map to start with. That's 22MB of GPX traces and a 29MB<br>
.osm file (the whole of Iceland.osm is around 67MB by comparison).<br>
I've already imported the GPX data under a dedicated user account with<br>
the .osm data to follow soon.<br>
<br>
The import user:<br>
<a href="http://www.openstreetmap.org/user/ourFootPrints%20import/traces" target="_blank">http://www.openstreetmap.org/user/ourFootPrints%20import/traces</a><br>
The raw data: <a href="http://github.com/avar/ourfootprints-data" target="_blank">http://github.com/avar/ourfootprints-data</a><br>
Import scripts / documentation: <a href="http://github.com/avar/ourfootprints-import" target="_blank">http://github.com/avar/ourfootprints-import</a><br>
<br>
Here's the 29MB .osm file which is approximately what I'll be<br>
importing, after I've fixed up the source tags / highway tags etc.:<br>
<br>
!! DO NOT UPLOAD THIS<br>
<a href="http://v.nix.is/%7Eavar/noindex/ourfootprints/ofp.osm.bz2" target="_blank">http://v.nix.is/~avar/noindex/ourfootprints/ofp.osm.bz2</a> !!<br>
<br>
The plan is basically to upload that as-is except change the tags to<br>
be e.g. ourfootprints:highway=residential instead of<br>
highway=residential. That way a lot of duplicate data will be added to<br>
the database temporarily until we manually review & sort it out by<br>
either deleting it, merging it in to have highway=residential. Most of<br>
the data users like the renderers, mkgmap etc. won't notice since the<br>
roads will use previously unused tags.<br></blockquote></div><br>Hello,<br><br>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.<br>
<a href="http://wiki.openstreetmap.org/wiki/BMO">http://wiki.openstreetmap.org/wiki/BMO</a> contains most of the information about how the differential import was done.<br><br>Emilie Laffray<br>