[Tagging] Ferry lines, ways or relations?

[Martin Koppenhoefer]

Am 09.09.2012 um 21:06 schrieb Dave Sutter <sutter at intransix.com>:

> Here it is easy enough to label a room and a building. What is the way
> for labeling this as a part of Stanford University?


Like in your shopping mall example you would likely draw a polygon around it and tag it name=Stanford U. and amenity=university. A solution for special cases might be the site relation.

I think the bigger problem arises for stuff that is inside this polygon but NOT part of the university (maybe not in this particular case, but these situations occur). How do we exclude a POI from an enclosing polygon (maybe also in combination with tags like layer or building level, which add some pseudo 3D but are not automatically recognized by standard routines like STWithin, so evaluating might need to take them additionally in account).

Cheers,
Martin