[Talk-GB] Import proposal: Global ML Building Footprints for Nottinghamshire, UK

[Neil Matthews]

I think until you draw edges of the split polygons it’s impossible to tell definitively.

Neil

Sent from my iPad

> On 7 Feb 2023, at 09:25, Russ Garrett <russ at garrett.co.uk> wrote:
> 
> On Mon, 6 Feb 2023 at 22:00, Neil Matthews
> <ndmatthews at ndmatthews.plus.com> wrote:
>> Had a look at the split buildings layer near Bristol City Hall (BS1 5TR) and there seem to be diagonal "stripes" in buildings which have no relationship to the buildings/architecture -- an in other areas of the city.
>> 
>> It could be that there is some issue displaying in JOSM (or interaction with plugins) -- but if that's not the case then it's definitely unsuitable for an automatic import -- and of course in this instance buildings have already been "hand-drawn".
> 
> Indeed it seems this is an issue with the way JOSM's vector tile
> support handles polygons - you can see the same data rendered here
> without the artifacts:
> 
> https://osm-uk-addresses.russss.dev/#16.29/51.453467/-2.598028
> 
> I wonder if adding the ability to export GeoJSON by bounding box (as
> suggested by CJ a while back:
> https://github.com/russss/osm-uk-addresses/issues/1) might be more
> useful.
> 
> Cheers,
> 
> -- 
> Russ Garrett
> russ at garrett.co.uk