On Mon, 2011-02-14 at 16:26 -0500, Andrew Guertin wrote: > I have a few buildings that are not simply at ground level, and I can't > find how to map them on the wiki. > > First off, a skywalk between two buildings. Nothing fancy, although it > does go over a road.
As said before, use building/bridge/layer. > Second, an underground building. Connects to other buildings that are at > ground level and have basements. You can use the building description tags for this. For example, say you had a 2-level building entirely underground, which attached through a basement to another which had 2 levels underground and 3 above-ground. http://wiki.openstreetmap.org/wiki/File:Minlevel.svg Based on a quick read of this picture, and simply adapting the min tags, the underground one can be: building=yes building:levels=2 building:min_level=-2 height=6 min_height=-6 Aboveground can be: building=yes building:levels=5 building:min_level=-2 height=30 min_height=-6 > Third, a building with a courtyard, and a basement that also extends > below the basement. Again, similar to above. > Fourth a building that has been built into a cliff. At the top of the > cliff, on top of the building, are roads and sidewalks and things. Again, similar to above, however use layer tags to correctly indicate what roads are above/below/level with the building space. > Fifth, a building on a hill, with entrances variously on the third, > second, and first floor. One of the second floor entrances leads out > onto a "green roof", which has grass planted on it and connects to the > ground, but reaches out farther than the hill would naturally. You can use the same techniques of min_level and levels to indicate that too, along with layer tag. This isnt much different to grade separated on-ramps where there is a way between two junctions which are at different elevations. > Are there accepted ways to enter any of these buildings? If there's not > an accepted way, any thoughts on what I should do? Im happy to be corrected or have better advice pointed out, but from my reading, I think the tagging system I suggested would be appropriate, even if it needed a little of tweaking. > > Thanks, > Andrew > > _______________________________________________ > talk mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
