[Talk-GB] tagging for the renderer in Wokingham?

[Dave F]

I suspect Jun (& possibly you?) are confusing the layer tag with the 
level tag.

https://wiki.openstreetmap.org/wiki/Key:layer?uselang=en

I'm not saying Jun's edits are correct, but the layer tag has no 
relevance to real world levels.
The tag only refers to other entities overlapping similar space in plan.
It was created purely to help renderers determine which item to display 
on top or underneath.

Adjacent entities at the same *level* can have /different/ *layer* tags.

Your fourth bullet looks legit as there's a pathway passing under the 
building.

DaveF

On 22/05/2022 18:42, Jon Pennycook via Talk-GB wrote:
> (I tried sending this before, but it didn't seem to go anywhere - 
> apologies for the duplication if you get both copies)
>
> Whilst going through some of JunKwonGD's earlier edits 
> (https://www.openstreetmap.org/user/JunKwonGD/history 
> <https://www.openstreetmap.org/user/JunKwonGD/history>), I found this 
> which I'll need to look at (unless someone visits Wokingham Town 
> Centre before I do):-
>
> https://www.openstreetmap.org/changeset/120249277 
> <https://www.openstreetmap.org/changeset/120249277>
>
> particularly:
>
> * https://www.openstreetmap.org/way/205394228 
> <https://www.openstreetmap.org/way/205394228> (building=yes, layer=2)
>
> * https://www.openstreetmap.org/way/1055324536 
> <https://www.openstreetmap.org/way/1055324536> (highway=pedestrian, 
> layer=-1, but it's actually the same as 
> https://www.openstreetmap.org/way/824022279 
> <https://www.openstreetmap.org/way/824022279> )
>
> * https://www.openstreetmap.org/way/943259827 
> <https://www.openstreetmap.org/way/943259827> (Starbucks, layer=1, but 
> it's on the ground floor, same level as 
> https://www.openstreetmap.org/way/1055324536 
> <https://www.openstreetmap.org/way/1055324536> and 
> https://www.openstreetmap.org/way/824022279 
> <https://www.openstreetmap.org/way/824022279>)
>
> * https://www.openstreetmap.org/way/205394225 
> <https://www.openstreetmap.org/way/205394225> (building=yes, layer=1)
>
> * https://www.openstreetmap.org/way/54369261 
> <https://www.openstreetmap.org/way/54369261> (highway=footway, 
> layer=1, but it's on the ground floor)
>
>
> I suspect that it's tagging for the renderer or to get past iD's 
> validation, so can probably all have the layer tag removed.  At least 
> this edit seems to have been made using Bing, not dodgy sources.
>
> Jon
>
>
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