On Monday 11 March 2013, Jochen Topf wrote: > > I have described the details in this blog post: > http://blog.jochentopf.com/2013-03-11-state-of-the-osm-coastline.html > Have a look at the chapter about Antarctica. (The other stuff might > be interesting, too, though.)
Concerning the 180-degree-line - for that a solution that would allow to process the coastline in a pacific centered coordinate system (or with any other cutting meridian) would be best. And the obvious way for that is to simply draw the coastline ways indiscriminately across the line. I think the API and database would have no problem with that but OSMCoastline would need to be able to close the coastline in arbitrary configurations at the edges and the editors would need to support it. I suppose especially the latter means it won't happen but still it would be the most elegant solution i think. Note doing the same also for other geometries would be problematic since on a sphere you have no reliable way to decide about inside and outside of a (large) polygon without the orientation convention of the coastlines. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
