[HOT] building=yes both on the way and on the nodes

[Pierre Béland]

It seems that you have not received my previous answer to John on this list where I provided a solution to query a bbox from Overpass.See http://overpass-turbo.eu/s/A9c

A more generic solution where it shows child nodes of a building with any key except source.In this example around Freetown, it even picks a power line connected to a building where also the node has keys. We also see what seems to be field work for the Ebola outbreak in 2015 by MSF and Red Cross where keys such as name are added to child node of a building. 

http://overpass-turbo.eu/s/A9E

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overpass turbo


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content /* --> osm keys (except source) on buidings child nodes */
[out:xml][timeout:60];

way({{bbox}})["building"]->.b; 
node(w.b)[!"source"](if:count_tags()>0);
out meta;<; out meta;
>; out meta;

 
Pierre 
 

    Le dimanche 8 juillet 2018 15 h 23 min 48 s HAE, john whelan <jwhelan0112 at gmail.com> a écrit :  
 
 I suspect its more general than just Chad since its more than one mapper.  At 2,657 in Chad I'd say that's liveable with unless some kind soul could zap them.  I very much doubt there is a valid reason for their existence.

Cheerio John

On 8 July 2018 at 15:12, Jean-Marc Liotier <jm at liotier.org> wrote:

On Sun, July 8, 2018 4:09 pm, john whelan wrote:
> I'm seeing a fair number of these especially in CHAD.  Could someone do an
> overpass or whatever to see how big a problem it is?

I loaded the following query into JOSM:

[out:xml];
{{geocodeArea:chad}}->. searchArea;
(
  way["building"="yes"](area. searchArea);
);
(._;>;);
out meta;

I ran the validator... "Nodes duplicating parent way tags" numbered 2657
and they were all building=yes

Committed: https://www.openstreetmap.org/ changeset/60516490

The changeset covers only a region around N'Djaména - I don't know if it
is because no buildings in Chad exist outside of this are or if my query
applied to the bounding box rather than to the geocodeArea I intended.



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