[OSM-talk] Overpass area query gives results outside area...

[Jean-Marc Liotier]

On 06/11/2013 14:28, Martin Raifer wrote:
>> As an exercise, let's find Dakar in Senegal
>
> Searching areas by area is not yet supported in Overpass API. See this 
> feature request:
>
>   https://github.com/drolbr/Overpass-API/issues/45
>
>> Well... Maybe area selection is inoperative. Let's try with a good 
>> old bounding box
>
> This is also not yet implemented, unfortunately:
>
>   https://github.com/drolbr/Overpass-API/issues/55

Ok, thanks for the information. But then why do 
https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL and 
https://wiki.openstreetmap.org/wiki/Overpass_API/Language_Guide mention 
selections by bounding box, by polygon and by area ?

> If you only want to get the administrative area "Dakar": Why not 
> simply using something like this: [..]

My queries were just test examples - what I actually want to do is find 
occurrences of nodes/ways/relations with a given key/value pair, within 
Senegal.

I guess I'll do that with xpath queries on a planet extract... 
http://download.geofabrik.de/africa.html does not offer Senegal and I'm 
not sure I want to handle the 420 MB file... So I guess that for I'll 
use a rough bounding box from http://download.bbbike.org/osm/ until I 
have a better solution, or just abuse computing resources by using the 
whole 420 MB file for this menial job.