Hello Everyone, it has been pointed out occasionally (see for example [1]) that current use of external data sources in the OSM standard style is somewhat ugly.
Back in April i made some tests how to process OSM data to generate simplified polygons for urban landuse/builtup areas to be used as replacement for builtup_area.shp (which is the most significant outside source currently in the standard style). This has not been mentioned here, you can read the details on [2]. I have now improved this technique sufficiently to process the whole planet and you can find a shapefile for testing on [3]. This is of course a fairly ressource intensive process with all building and road data in the database being used as basis. But in principle it would be possible to run this with periodic updates in a similar way as currently done for the coastline. Everyone feel free to try out these polygons in your maps. I have not tried this myself in the standard style yet, it is likely that adaptations in either the generalization process or the style (or both) are necessary for best results. Comments and examples on that are welcome. Greetings, Christoph [1] http://wiki.openstreetmap.org/wiki/User:Mrwojo/builtup_area.shp [2] http://www.imagico.de/map/osm_builtup_en.php [3] http://www.imagico.de/map/osm_builtup_en.php#download -- Christoph Hormann http://www.imagico.de/ _______________________________________________ dev mailing list dev@openstreetmap.org https://lists.openstreetmap.org/listinfo/dev
