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Tangent for bored hackers: you can torrent the entire OpenStreetMap dataset right now. It's only 23 GiB, in a simple format stored as protocol buffers. http://

Tangent for bored hackers: you can torrent the entire OpenStreetMap dataset right now. It's only 23 GiB, in a simple format stored as protocol buffers. http://wiki.openstreetmap.org/wiki/Planet.osm#BitTorrent http://wiki.openstreetmap.org/wiki/Planet.osm#BitTorrent http://wiki.openstreetmap.org/wiki/PBF http://wiki.openstreetmap.org/wiki/PBF (format documentation) http://wiki.openstreetmap.org/wiki/Map_Features http://wiki.openstreetmap.org/wiki/Map_Features (common tag strings) edit: This was my first render from this weekend, http://i.imgur.com/vD9d39W.png http://i.imgur.com/vD9d39W.png :D

seagreen 13y ago
Sweet! This means you could have a complete navigation system without a dataplan.
- cbaleanu 13y ago
  You would still have to roll your own offline geocoder. From my experience with OSM and Oracle's Spatial Geocoder, getting accurate driving directions can be a very 'interesting' process.
  - ris 13y ago
    Roll your own? Why not use one of the existing widely-used OSM geocoders? http://wiki.openstreetmap.org/wiki/Photon http://wiki.openstreetmap.org/wiki/Photon http://wiki.openstreetmap.org/wiki/Nominatim http://wiki.openstreetmap.org/wiki/Nominatim
    - cbaleanu 13y ago
      Sorry, lost in translation there. I meant deploy an offline geocoder.
      - ris 13y ago
        Either of those examples I provided can be used "offline" provided you have a local copy of the dataset, which is the given assumption.
    - toomuchtodo 13y ago
      Is it possible to embed the geocode data into the OSM dataset? So you wouldn't need to geocode on the fly?
      - maxerickson 13y ago
        To a first approximation, the geocode data is embedded in the planet file (as address tags associated with some object or another). But most consumers aren't using the data as organized in the planet file, they are generating extracts based on extent or whatever criteria, and usually processing the data into some data model that is better for the work they are doing.
        toomuchtodo 13y ago
        Thanks. I was curious if not only could you have all the OSM data offline, but if you could have all of the integrated geocoding data offline as well.
        maxerickson 13y ago
        Geocoders using OSM are also usually pulling in address range data from TIGER.
        toomuchtodo 13y ago
        The Address Ranges National Geodatabase (~500MB) I'm assuming? http://www.census.gov/geo/maps-data/data/tiger-geodatabases.html http://www.census.gov/geo/maps-data/data/tiger-geodatabases....
        maxerickson 13y ago
        I guess not (but I've never really messed with it): http://wiki.openstreetmap.org/wiki/Nominatim/Installation#I.27ve_successfully_imported_an_excerpt_of_the_US_but_my_results_differ_from_OSM.27s_Nominatim_instance._All_the_house_numbers_seem_to_be_missing.21 http://wiki.openstreetmap.org/wiki/Nominatim/Installation#I.... What a nice link.
frik 13y ago
Apparently, most readers clicked on the first torrent (32GB), instead of the compressed one (22GB) below. The deep link to the 22GB Version: http://osm-torrent.torres.voyager.hr/files/planet-latest.osm.pbf.torrent http://osm-torrent.torres.voyager.hr/files/planet-latest.osm...
- ekianjo 13y ago
  what can you use for viewing such maps offline?

seagreen 13y ago

Sweet! This means you could have a complete navigation system without a dataplan.

cbaleanu 13y ago
You would still have to roll your own offline geocoder. From my experience with OSM and Oracle's Spatial Geocoder, getting accurate driving directions can be a very 'interesting' process.
- ris 13y ago
  Roll your own? Why not use one of the existing widely-used OSM geocoders? http://wiki.openstreetmap.org/wiki/Photon http://wiki.openstreetmap.org/wiki/Photon http://wiki.openstreetmap.org/wiki/Nominatim http://wiki.openstreetmap.org/wiki/Nominatim
  - cbaleanu 13y ago
    Sorry, lost in translation there. I meant deploy an offline geocoder.
    - ris 13y ago
      Either of those examples I provided can be used "offline" provided you have a local copy of the dataset, which is the given assumption.
  - toomuchtodo 13y ago
    Is it possible to embed the geocode data into the OSM dataset? So you wouldn't need to geocode on the fly?
    - maxerickson 13y ago
      To a first approximation, the geocode data is embedded in the planet file (as address tags associated with some object or another). But most consumers aren't using the data as organized in the planet file, they are generating extracts based on extent or whatever criteria, and usually processing the data into some data model that is better for the work they are doing.
      - toomuchtodo 13y ago
        Thanks. I was curious if not only could you have all the OSM data offline, but if you could have all of the integrated geocoding data offline as well.
        maxerickson 13y ago
        Geocoders using OSM are also usually pulling in address range data from TIGER.
        toomuchtodo 13y ago
        The Address Ranges National Geodatabase (~500MB) I'm assuming? http://www.census.gov/geo/maps-data/data/tiger-geodatabases.html http://www.census.gov/geo/maps-data/data/tiger-geodatabases....
        maxerickson 13y ago
        I guess not (but I've never really messed with it): http://wiki.openstreetmap.org/wiki/Nominatim/Installation#I.27ve_successfully_imported_an_excerpt_of_the_US_but_my_results_differ_from_OSM.27s_Nominatim_instance._All_the_house_numbers_seem_to_be_missing.21 http://wiki.openstreetmap.org/wiki/Nominatim/Installation#I.... What a nice link.

frik 13y ago

Apparently, most readers clicked on the first torrent (32GB), instead of the compressed one (22GB) below. The deep link to the 22GB Version: http://osm-torrent.torres.voyager.hr/files/planet-latest.osm.pbf.torrent http://osm-torrent.torres.voyager.hr/files/planet-latest.osm...

ekianjo 13y ago
what can you use for viewing such maps offline?