Thanks all for the thoughts about distinguishing wind turbines that are/aren't landmarks. Personally I quite liked the landmark=yes suggestion but, looking at the current tagging, I saw that it simply has never been used with wind turbines. (Also, the wiki page for landmark is very ambivalent.) landmark=windmotor is mentioned in the wiki, and has been used 36 times, but again, the wiki is ambivalent, suggesting it's not normally to be used.
On the other hand, "man_made=tower" has been used hundreds of times in combination with wind turbine tags. Now, marking something as being a tower doesn't make a 100% definite indication of significance. But since it's already in use, verifiable, and in most cases it goes along with the distinction I have in mind, I think I intend to go along with that - I'll add man_made=tower wind turbines that I map, when indeed they are towers. Best Dan 2013/10/7 Dan S <danstowell+...@gmail.com>: > Hi all, > > One of the things I noticed at SOTM was that the Aston campus has two > little wind turbines, perched on top of some of the buildings. They're > quite small, yet the standard OSM style shows them even at zoom level > 15, as if they're significant landmarks: > > <http://www.openstreetmap.org/?mlat=52.4849&mlon=-1.8899#map=15/52.4849/-1.8899> > > The relevant tags on these items are > generator:source = wind > power = generator > power_source = wind > > I've no problem with them being rendered, but I'd suggest it'd be > better to show them only at finer zoom levels. However, as far as I > can tell our renderers don't have much choice, because there's no > tagging that distinguishes a tiny building-mounted turbine from a > massive free-standing turbine. > http://wiki.openstreetmap.org/wiki/Tag:generator:source%3Dwind > In open areas with wind-farms, the turbines are significant landmarks, > so I can see it makes sense to render them then. > > I'm suggesting this is not a problem we can leave for the renderer, > since the renderer doesn't know the turbine's significance - it > doesn't know if the turbine is 5 feet high or 50 feet high. (This > implies that tagging the height could be a solution... might be a bit > tricky to get correct height data though...) > > Best > Dan _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
