Hamish schrieb: > [v.in.osm] (openstreetmap.org) > > Jannis Achstetter wrote: > >> - You can let the script try to import "closed ways" as areas. There's >> a little problem here: >> The script just checks, wether the first node of the first segment >> (first means segment #1 of the way) and the last node of the last >> segment (means segment with the highest number in that way) match. >> This must be the case with closed ways but can occur with unordered >> ways, too (Way: 3,4,5,1,2 for example). That's why "highway" and >> "junction"-tagged ways are ignored at the area-check. >> > > > Hi, > > what is a "closed way"? a series of segments forming a route? > road-as-polygon? > > > ??, > Hamish >
No, not quite. A "series of segments forming a route" is a "way". You speak about a "closed way" when the segments form a circle in the way it's described in the OSM-wiki: "Areas are the polygon of at least 3 segments in a row. The end of the last segment has to connect to the start of the first." The OSM-data-scheme doesn't really know "areas", so closed ways are used to describe areas. There is a discussion wether the key "area" should be defined to really make sure it's an area: http://wiki.openstreetmap.org/index.php/Key:area Jannis _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
