[OSM-talk] rendering with mapnik, what do I need?

[Dave Stubbs]

On Fri, Feb 22, 2008 at 2:09 PM, Chris Jones <rollercow at sucs.org> wrote:
> On Fri, 22 Feb 2008, Jo wrote:
>
>
> >>> 2. What do I need? PostgreSQL? Python? What else?
>  >>
>  >> See http://wiki.openstreetmap.org/index.php/Mapnik
>  > It's rather short. Is it really that simple...? How often is the planet file
>  > generated? Say I would like to have daily updates instead of weekly. Is that
>  > possible? I guess I should just try it...
>
>  You can complecate it more if you want to render things on demand rather
>  than prerender everything, but thats basicly all thats needed produce a
>  bunch of tiles.
>
>  There are daily and even hourly 'diffs', i dont know if osm2pgsql or any
>  other tool can update the mapnik database useing them though.
>

Not at the moment, but if you're only working on a smallish excerpt of
the planet it would probably be feasible to apply the daily diff and
reimport the data to postgres in not-much-time. This doesn't really
work for the whole planet where importing alone seems to be taking
about 4 hours... this would probably go faster if I had faster disks,
and if osm2pgsql could take advantage of all my CPUs - but that's
non-trivial.