[Talk-GB] How to map houses

[John Aldridge]

On 27-Nov-18 11:50, Lester Caine wrote:
> On 27/11/2018 11:40, John Aldridge wrote:
>>> It would be useful if there was a means of splitting buildings in the 
>>> editor(s).
>>
>> I'm probably in a minority here, but since the mapper usually can't 
>> tell how the building is divided internally, it's more honest to leave 
>> the building undivided and put the housenumber etc. tags on nodes on 
>> the building boundary which represent the front doors.
>>
>> I also think this is more useful to someone using the map, as it shows 
>> where to find the doorbell!
> 
> My source material has all the house divisions and we could even include 
> the internal floorplans...

Perfect! Though doing that job properly would sometimes involve 3D 
mapping - there's one smallish building around here with four front 
doors which I suspect is split into two upstairs and two downstairs flats.

But that's very much the exception, I suggest. Mostly people seem to 
have arbitrarily divided a semi or terrace so as to give separate 
polygons to tag. Better all round to just tag front door nodes under 
those circumstances, I suggest. And where a single exterior door is 
shared between several dwellings (e.g. in a block of flats) something like

addr:housenumber=8-24
addr:interpolation=even

on the node deals neatly with the case.

-- 
Cheers,
John