[OSM-talk] Coastline

[Jon Burgess]

On Mon, 2009-07-27 at 10:37 +0100, David Groom wrote:
> 
> ----- Original Message ----- 
> From: "Chris Hill" <chillly809 at yahoo.co.uk>
> To: "OSM Talk" <talk at openstreetmap.org>
> Sent: Saturday, July 25, 2009 3:22 PM
> Subject: [OSM-talk] Coastline
> 
> 
> >
> > I have altered the coastline in the Humber estuary, UK to reflect
> the
> > official position of where the coast ends and the river starts.  The
> > coastal area hasn't rendered in Mapnik yet [1].  I seem to remember
> that
> > a coastline update process needs to run to change the coastline.  Am
> I
> > right?
> 
> Yes. For mapnik, at high zoom levels the coast polygons used are
> generated 
> from shapefiles created by the coastline error checker.
> 
> The coastline error checker has been offline since sometime before mid
> June, 
> so no updated shapefiles have been created.
> 

All the coastline on the Mapnik layer come from two sets of shapefiles
(shoreline_300 & processed_p) which are generated every few weeks from
the planet dumps on the Mapnik tile server. The last update was done on
July 10th. 

     Jon