On 15 February 2011 23:11, Nathan Edgars II <[email protected]> wrote: > Jacek Konieczny wrote: >> >> layer=-1 tells only that the thing is under layer=0 and over layer=-2, >> nothing in relation to 'ground level' (some rivers or roads may have >> layer=-1 or layer=1 on most of its length). >> > No, ground level is layer 0. A nonzero layer on a ground-level feature is an > error.
That's never been a rule in OSM. However, since the choice of the level=0 feature is arbitrary there's nothing wrong with actually assuming (as a producer, not consumer) 0 to mean the perceived ground level and I usually do that. That way I can at least re-tag my work easily once there's a popular levels_above_ground tag. Cheers _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
