[OSM-talk] [OSM-dev] Land Information New Zealand (LINZ) -> Openstreetmap import first pass

[Anselm Hook]

That's super great! Excited to hear that.

On Tue, Jun 30, 2009 at 7:34 AM, Joe Richards<joefish75 at yahoo.com> wrote:
>
> I've been working on the LINZ data import, on attribution/legal as well
> as the actual import.  The LINZ data I have is actually via the NZ
> Open GPS project and is in Polish Map (.mp) format, which seems
> to use Garmin types for its features.
>
> I've hacked around with a few other scripts and have created a python
> script which creates .osm files, and then imported them into a local
> postGIS instance I run at home.  From there I've generated tiles using
> Mapnik  and uploaded them to a dev server for your perusal....
>
> Upload is still in progress but most are there already (starting in the
> north and working south).  It's just south of Christchurch already and
> I have gone and rendered Dunedin, Queenstown and Glenorchy ahead
> of time.  If you find zoom 16 is not visible then zoom out a bit until you
> find the available tiles.  As mentioned all of the north island is done.
>
> http://linz.dev.openstreetmap.org/~JoeRichards/
>
> Notes:
>  * import was done on a basic world map (from vmap0) to provide
> coastlines where they were missing
>  * some large rivers have a lot of detail, but some seem to be missing
> altogether (e.g. Lower Hutt river) - this was also missing in the NZOGPS dataset,
> not sure why
>  * tiles are still being generated and uploaded now (Tue 30th June),
> but all of the north island to 16 zoom levels is done as well as the
> Tasman... South of Christchurch is still being uploaded (although some
> tiles are there at lower zoom levels)
>  * I think most of the road types (primary, secondary, trunk) etc
> might be completely off, including the link roads.  Please send me any
> specific instances or comments on this
>  * No attempt made to support anything like turn restrictions or
> relations since this was missing from the original dataset
>  * Roundabouts seem to have an issue as well, where their parts are
> missing
>  * large lakes such as Lake Wakatipu near Queenstown were split across
> two datasets, and as such as not showing up
>  * central cities seem to have more detail in the existing OSM data
> (except perhaps some missing street names) but rural areas have
> less... This is ok, but your thoughts are welcome on how to merge
> these
>  * parcel boundaries (cadastral) information, showing property boundaries,
> shapes, and house numbers will be imported separately, ie are to-do
>  * Department of Conservation parks, national parks, reserves etc are
> also to-do, although some are present in the current dataset.
>  * No data is merged with current OSM data, so this is really to spot problems
> before we attempt merging.  It has been suggested we might use
> the java-based RoadMatcher for this.  Your comments are welcome.
>  * Thanks to Geofabrik.de for allowing me to use their "compare" javascript
>
> I will also put up the .osm files generated by the script so you can
> check out whether the data is there, but just incorrectly tagged.
>
> Please feedback to me anything you see, especially if it is incorrect.
> Since the plan is to merge this with the existing Openstreetmap data,
> missing features that are in OSM are less of an issue than features
> that should be in the imported dataset but are not (and hence are
> missing on both).
>
> Source (GPL) is here
> http://trac.openstreetmap.org/browser/applications/utils/import/linz2osm/mp2osm_linz_jr.py
>
> Anything in the code marked as TODO or FIXME requires special attention and verification.
>
> Enjoy and feel free to comment!
>
>
>
>
>
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>



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