It's fairly straightforward: There are three sources of coastlines in the mapnik layer:
http://trac.openstreetmap.org/browser/applications/rendering/mapnik/osm.xml#L31 * World-1 : zoom 0 to 6, very low detail * world : zoom 7 to 9 * coast-poly : zoom 10+ The final one is derived from the coastlines in the database, but isn't automatically updated - it'll happen when Jon feels that it's worth doing by checking the state of play at http://tile.openstreetmap.nl/coastlines.html . You can tell the first two apart by checking Stockholm - the inland sea to the north-west is on world-1 (and coast-poly), but not world. On the cycle map I ditched the world layer and only render world-1 and coast-poly, but there's a performance impact on rendering the very-high-quality coast-poly at low zooms, never mind the problems with Greenland being missing etc. In this case, it looks to me like the coast-poly didn't have the lagoon in it when Jon last synced, whereas it does now. Syncing isn't always a good idea, since there will be days when the whole world goes blue on the coastline checker, but I'm sure it'll be updated at some point. Cheers, Andy On Fri, Feb 29, 2008 at 10:05 AM, Edoardo Marascalchi <[EMAIL PROTECTED]> wrote: > the mapnik rendered dried the Venice Lagoon... > > http://informationfreeway.org/?lat=45.42206757761904&lon=12.3044452665428&zoom=13&layers=0000F0B0F > The same are correcty rendered by [EMAIL PROTECTED] > > http://informationfreeway.org/?lat=45.44447342335&lon=12.328821176790472&zoom=12&layers=B000F000F > -- > Edoardo Marascalchi > ICT Consultant > > website: http://www.edoardomarascalchi.it > skype: My status <skype:asca_edom?call> > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk > _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
