Fetch areas for OSM nodes / ways from Overpass using relation IDs

Question

I want to fetch up to around 10 OSM objects and assign them to a set of hand-picked areas (up to around 20 different areas) in a single Overpass query. Is this possible?

So the desired output is:

Node/Way tags and center of first object + area the first object is in
Node/Way tags and center of first object + area the first object is in
...

I already got this kind of working with wikidata tags:

[out:json][timeout:10];
(
node(id:3959878839);way(id:162817836);
);
foreach->.d(
  (.d;.d >;)->.d; 
  .d out center;
  .d is_in;
  area._[wikidata~"(Q14201325|Q16895860)"];
  out;
);
>;

Overpass Turbo

This returns the node / way data as well as the area the object is in.

Now I realized I cannot identify all areas needed in the future by wikidata tags and want to use the relation IDs.

The relations are:

For area IDs we have to add 3600000000 to the ID.

So I tried

[out:json][timeout:10];
(
node(id:3959878839);way(id:162817836);
);
foreach->.d(
(.d;.d >;)->.d;
.d out center;
.d is_in;
area._area(3611589457);
out;
);
>;

Overpass Turbo

But this does not output the area any more, and I also don't know how to supply the other area IDs here.

The documentation you've quoted here is outdated and not the original one (see wiki.openstreetmap.org/wiki/Overpass_API/… ... "For area IDs we have to add 3600000000 to the ID." -> this is no longer recommended: "You should use the map_to_area function to avoid having to make these calculations manually and depend on any hard-coded constants in your query. " — mmd
– mmd, Commented Jun 15, 2023 at 20:31

Alex · Accepted Answer · 2023-05-01 10:17:56Z

2

So I just read the tutorial first. (shame on me I did not do this earlier)

This works:

[out:json][timeout:10];
(
node(id:3959878839);way(id:162817836);
);
foreach->.d(
  .d out center;
  (.d;.d >;)->.d;   
  .d is_in -> .areas;
  ( 
    area(3611589457).areas;
    area(3611589616).areas;  
  );
  out;
);
>;

Also I put the recurse query after printing the features, because I do not need the nodes of the ways in the output.

Overpass Turbo

answered May 1, 2023 at 10:17

Alex

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