Dear OSM-Develpoers,
New extracts are now online, including the requested Amsterdam extract:
<ftp://ftp5.gwdg.de/pub/misc/openstreetmap/osm-full-history-extracts/110418/hardcut-bbox-pbf/>
They are in a slightly modified PBF-Format that supports the visible
Flag [1].
They can be read using this modified version of osmium [2] and its tools
(ie. osmium_convert [3], which allows you to convert the file back to xml).
If you need help reading those files, don't hesitate to ask me.
It has been created using my history-splitter [4] which is build using
this very cool library.
To generate those dumps I first used osmium_convert to create a
pbf-bersion of the full-planet-110418-0000.osm.bz2 (I'll publish this
file soon). This conversion took 8 hours.
From this pbf file the actual split took just 1 hour (compared to the
21 hours when I was writing to .osm.bz2 files!!) - what an incredible
speedup!
Peter
[1]
<https://github.com/MaZderMind/OSM-binary/commit/1ddaca6a03afde8d16e4bf7ab3cd065f09c8d9b1>
[2] <https://github.com/MaZderMind/osmium>
[3]
<https://github.com/MaZderMind/osmium/blob/master/examples/osmium_convert.cpp>
[4] <https://github.com/MaZderMind/osm-history-splitter>
Am 17.05.2011 08:30, schrieb Martijn van Exel:
Hi Peter,
On Thu, May 12, 2011 at 10:46 AM, Peter Körner<[email protected]> wrote:
Hi
I'm very proud to announce the release of the first history extracts. They
have been created from the latest full-experimental-dump [1] using my
history splitter [2], based on a slightly modified version of Jochen Topfs
really great osmium framework [3]. They contain multiple versions of an
object. If you just want the map-data as it is currently, use the
Geofabrik-Extracts [4].
The extracts can be downloaded from gwdg:
<ftp://ftp5.gwdg.de/pub/misc/openstreetmap/osm-full-history-extracts/110418/hardcut-bbox-xml/>
Thanks for this! I haven't had time to look into them but I am eager
to start working with them. These will be helpful for the Essen hack
weekend as well!
I haven't really looked into it, but would it be straightforward to
make an Amsterdam extract using your script? When doing analyses it
helps to work with an area you know - at least being able to compare
to an area you know.
Thanks again
Martijn
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