Am 20. Februar 2012 14:21 schrieb Volker Schmidt <vosc...@gmail.com>: >> There is consensus that the key >> "height" is describing the height of the structure from the ground to >> the top. > +1 (I think there is no other way of doing it)
well, you could say that height is the maximum vertical extension and thus also comprising the underground part of a structure. >> There is also consensus to tag elevation data in WGS84 (so >> that numbers in local systems would typically have to be converted >> before you can enter them). > I do not understand what that means. For me height is always in meters, and > meters don't change with the system of reference (unless they move close to > the speed of light ) It's not the meters that change, it is where you set your 0.00 level that is changing >> b) ele is the elevation of the highest point at the tagged spot, i.e. >> the top of the tower > I would say abolutely not, even though there are examples where, say a > restaurant on top of a tower gives the elevation from see level, but that > most likely be altitude and not elevation. well, this is what one could read from the current wiki definition (which we could make less ambiguous after this discussion). cheers, Martin _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
