On Sun, Jan 20, 2019 at 10:57:47PM +0100, Tobias Zwick wrote: > >> - also the building with "ground_level=G" to define which level is > >> the ground level. If ground_level is missing, 0 is assumed. > >> > > Do we really need a ground level? I think not. We need connections to > > outside ways and entrances. > > Well, all of which I mentioned is optional. But I can come up with two > use cases for wanting to know which level is the ground level: > > 1. Localization > > In an application, it is much nicer to be able to write > "ground floor" (en-GB), "first floor" or "basement floor 2" > than > "level 0", "level M" or, worst, "level -1" > > To refer to a "level" may be even less understandable when trying to > translate that into other languages. > > But for this to work, it is necessary for the application to know which > level is the ground floor.
maybe we should endorse "level:xx" instead of thinking about translating it. > 2. 3D indoor levels > > When displaying the floors of a multi-storey building in 3D on top of > each other, you need to know where on the Z-Axis you have to place it. for this key:ele would much better. The ground floors of any 2 buildings may be at very different elevations if the buildings are seemingly adjacent. Richard _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
