On Mon, Jun 18, 2018 at 11:33 AM marc marc <marc_marc_...@hotmail.com> wrote: > > Le 18. 06. 18 à 17:22, Kevin Kenny a écrit : > > Would it be feasible to say that building=yes is a default (except, > > perhaps, for rock_shelter, sun_shelter) and that mappers are expected to > > place an expected building=no on the exceptions? > > please never do that. > you never known if the mapper have checked the implied value or not. > and therefore the auto-added tag lost all meaning.
I'm not talking about auto-adding a tag in the editors, but rather documenting an assumption for data consumers. We have a number of assumptions already that are broadly accepted. The routers presume access=private for driveways. The renderer presumes area=no for closed highway=* ways. The editors don't auto-add these tags, the renderers and routers simply act based on the default assumption and the specifically tagged exceptions. But I'm not wedded to this idea; if the consensus is that this particular assumption is too fragile, so be it. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
