[Tagging] building=yes for multiple building

Blake Girardot bgirardot at gmail.com
Wed Mar 16 16:12:33 UTC 2016

I am reluctant to suggest that mapping large groups of buildings as one 
outline is a good idea. As I said, to me it is a last resort and should 
be avoided at all costs. Otherwise we are going to get blocks of easily 
mapped buildings outlined as building just because that is a lot easier 
and then leave the detailed mapping to someone else.

But that being said, since it is acceptable to map large blocks of 
buildings as building in some circumstances, I think we might need a new 
value to the building=* key.

Most data consumers that I work with usually consider building=yes to 
indicate one building.

If we know we are mapping multiple buildings under one polygon would it 
be a good idea to add something like a 'multiple' value to the key?


That would also make it easier to locate them for further refined 
mapping in the future.


On 3/16/2016 4:48 PM, althio wrote:
> Simon Poole wrote:
>> IMHO we always allow and support progression from rough to more detailed.
> +1
> Philip Barnes wrote:
>> Mike Thompson wrote:
>>> My feeling is that individual buildings should be mapped.
>> In an ideal world I would agree, but we don't live in one and in some cases such as medieval building layout it can be incredibly difficult to work out what roofline belongs to which building.
>> I would say its ok, and better than not mapping buildings at all, then you can always improve it after more surveys.
> +1
> I agree it is good to have rough mapping and let it improve over time.
> Back to OP question:
> Once you trace a rough outline for multiple buildings, what is the tag?
> building=yes? or another value?
> with a note=*? a fixme=*?
> - althio
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