[Talk-GB] Tagging a multilvel building

[Will Phillips]

Great to see some new mapping taking place in Evesham. I do visit 
occasionally and last year did some updates around the centre. 
Unfortunately I haven't had much time during recent visits.

Tagging multi-level buildings can be difficult and there isn't one 
agreed way to go about it. Generally I would try to keep it as simple as 
possible while adding the information you consider important.

The easiest option in this case would be to place a node inside the 
existing Town Hall building outline. Tag the node as a cafe, add the 
name and other details as you wish. Also add level=0 to show it is on 
the ground floor.

A somewhat more complicated approach would be to add the outline area of 
the cafe inside the town hall building. This would probably cover the 
whole of the building, except for the access to the first floor. You 
could then tag this outline as a cafe and again include level=0 and 
other details.

The Town Hall is currently mapped on this way:
http://www.openstreetmap.org/way/80273740
It might be worth changing the name from 'Town Hall' to 'Evesham Town 
Hall'. The address could also be added.

I hope this helps,
Will (will_p)

On 12/01/2017 10:07, Mark Goodge wrote:
> I'm currently trying to tidy up some of the tagging and locations of 
> the town centre where I live. I've already moved a pub to be in the 
> right place, and updated some labels for shops that have changed hands 
> since the previous edit. However, one that also needs updating is a 
> multi-use building with different uses on different floors, and I have 
> to confess that I can't really work out how to tag it from the 
> information on the wiki.
>
> Specifically, the building is Evesham Town Hall. Like a lot of English 
> market town Town Halls, it was originally built on arches at first 
> floor level, the ground floor open space being used as a market space. 
> But then the ground floor was later enclosed, and used separately - it 
> was, for a long time, the town police station and jail, and now has a 
> commercial tenant as a cafe-bar.
>
> What I'm trying, and failing, to work out how to tag is some way of 
> representing the following:
>
> 1. The entire building is "Evesham Town Hall".
> 2. The top floor comprises two parts: the Council Chamber and the Town 
> Hall.
> 3. The ground floor (excluding the access to the first floor) is the 
> Valkyrie Cafe-bar.
>
> I don't think it's necessary to map all the distinct parts, including 
> the staircase that gives access to the top floor. And tagging the 
> Council Chamber may be unnecessary, too. But I do think it needs to be 
> tagged as both the Town Hall and the cafe-bar, with the latter being 
> represented as being contained within the former at ground level.
>
> Does that make sense? If so, how do I do it?
>
> Mark
>
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