[OSM-talk] boundaries vs. is_in vs. relations

[Claus Färber]

Lester Caine schrieb:
> is_in being populated and stored is always going to be quicker to search than 
> trying to process a multitude of complex boundaries to find out if a node is 
> inside or outside the enclosed area? More so on larger boundaries, but non the 
> less a university campus or hospital with multiple buildings,...

There are also universities with multiple campūs.

There are buildings that do not sit in the middle of the street but next 
to it. *scnr* There are even buldings that belong to multiple streets 
(i.e. have more than one address).

Therefore, the 'is_in' relationship is not necessarily purley geographic 
but also administrative (i.e. don't think "is located in" but "belongs 
to" or "is in the list of things that belong to").

Claus