Hello.

There are cities without relations. 'Search results' shows path of relations. How to get relation_ids from this path?

For example I am looking for 'Wislon'. In Search results I see City: 'Wilson, Wilson County, North Carolina, United States of America', ie Wilson is part of Wilson County and Wilson County is part of North Carolina and so on. If I go to the details of the city (click the link), at the bottom of the page I see there is no any relation.

How can I get relation_ids for Wilson County, North Carolina, United States of America? Usually I use http://www.openstreetmap.org/api/0.6/relation/relation_id, but this is not the case.

As I can guess, this path is based on latitude\longitude of a place, and map\engine checks the next bigger territory untill the country level is reached. Is there any API call which I can use to get relation_ids of this tree? Thank you.

asked 06 May '16, 22:42

bear_ukraine's gravatar image

bear_ukraine
41336
accept rate: 0%

edited 06 May '16, 22:53


The county relation is available:

http://www.openstreetmap.org/relation/2528757

To obtain the county relation from another object, you could synthesize a coordinate for the object (maybe the center or use some method to select a child node) and use reverse geocoding to obtain the admin hierarchy for that point. Nominatim and Overpass API both have support for such queries:

http://wiki.openstreetmap.org/wiki/Nominatim#Reverse_Geocoding

http://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#Query_for_areas_.28is_in.29

permanent link

answered 06 May '16, 23:08

maxerickson's gravatar image

maxerickson
12.6k1082176
accept rate: 32%

1

Your information + some additional search + re-read few times Overpass API (lack of examples) and I have finally what I want :) Nominatim is cool thing, lots of example, but lack of functionality :)

Here is the example of the solution: http://overpass-api.de/api/interpreter?data=rel(4084902);>;is_in;out;

Also related info: http://help.openstreetmap.org/questions/20053/locating-an-osm-object-eg-finding-town-relation-name/20055

(07 May '16, 00:11) bear_ukraine
1

Don't miss Overpass Turbo when working Overpas API queries.

(07 May '16, 02:31) maxerickson

Alternatively, you could go to http://nominatim.openstreetmap.org. Search for Wilson, pick the one you want, click on details and you get a page like http://nominatim.openstreetmap.org/details.php?place_id=144418235

On that page you will find all the links of the relations used by Nominatim to calculate the address.

permanent link

answered 07 May '16, 11:13

escada's gravatar image

escada
18.9k16160302
accept rate: 20%

Wow. This method is also cool. Is there any way how can I get the data from details page via API?

(07 May '16, 13:22) bear_ukraine
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question asked: 06 May '16, 22:42

question was seen: 1,420 times

last updated: 07 May '16, 13:22

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