[OSM-talk] import VMAP0 data

[Nick Black]

Yes - I converted some coastal stuff to use with Mapnik.  The best (easiest)
way I have found to convert to OSM is to load data into PostGIS and then use
a ruby script to read into an OSM MySQL db.  This is slightly long winded
but is reasonably fast.  The script I used was a one-off customised for a
particular dataset.  If there is interest in importing stuff from pgsql into
OSM, I'll take a look and ammed it.

As for VMAP - I'm sceptical as to the benifits of its use.  I think its ok
for coastlines and lakes, good for city names and city outlines (as seen on
Mapnik), but I've seen how long it takes to re-align VMAP road data to
aerial imagery, and I dont think its worth it.  VMAP can be way, way out -
100s of metres - which just causes confusion when someone comes along with
their GPS trace and wonders whey the existing OSM data isn't there.  For
these reasons I think OSM is better off with nothing than VMAP roads and
railways.

Cheers,


On 5/7/07, Schuyler Erle <schuyler at nocat.net> wrote:
>
> * On  6-May-2007 at  7:14PM PDT, Lars Aronsson said:
> >
> > > I would like to know if there is an easy way to convert VMAP0
> > > data to .osm file or files. or if there is an easy way to
> > > convert VMAP0 ways to .gpx files.
> >
> > The coast_upload.pl script is a starter if you want to convert
> > ESRI Shapefiles to OSM format.  Some coding required, though.
> > Is the VMAP0 data in Shapefile format?
>
> It's not. But one can use ogr2ogr compiled with VPF support to convert
> it. Alternately, you can get em from here:
>
>     http://frederic.cs.dal.ca/pub/STDW/VMAP0/
>
> You might want to talk to Nick Black, since it seems like he's been
> down this road a bit already:
>
>     http://www.blacksworld.net/blog/?p=72
>
> SDE
>
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>



-- 
Nick Black
--------------------------------
http://www.blacksworld.net
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