Hello everyone, some time ago i introduced a technique to generalize OSM coastline data for better readable map rendering [1] on talk-de and i now release the tool used for this [2] as well as a set of generalized coastline files for zoom levels 1 to 8 [3]. There is also a demo map [4] - this uses a slightly different coastline than the one for download (in particular Antarctica data is replaced by a different source).
Feedback on both the tool and the files is welcome. It would be interesting to see how use of this would look like in the standard mapnik rendering, especially how much mismatch the moving of the coastline during generalization causes and how troublesome this is when viewing the map. You might notice various strange forms in the coastline at some places, most of them are caused by features being tagged as coastline which in fact should probably not be. I put up a wiki page [5] to collect these problems. If you find more or fix them feel free to edit that. [1] http://www.imagico.de/map/coastline_en.php [2] http://www.imagico.de/coastline_gen/index.php [3] http://www.imagico.de/map/coastline_download_en.php [4] http://www.imagico.de/map/map_en.php [5] http://wiki.openstreetmap.org/wiki/User:Imagico/coastline_problems_for_generalization Greetings, -- Christoph Hormann http://www.imagico.de/ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
