[Geocoding] [OpenStreetMap] #5379: Reverse geocoding ignores osm_type and won't return the closest Way
OpenStreetMap
trac at noreply.openstreetmap.org
Thu Jan 14 02:44:55 UTC 2016
#5379: Reverse geocoding ignores osm_type and won't return the closest Way
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Reporter: capellsk | Owner: geocoding@…
Type: defect | Status: closed
Priority: minor | Milestone:
Component: nominatim | Version:
Resolution: invalid | Keywords:
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Comment (by capellsk):
Okay, as soon as wiki account creation gets fixed (it's broken) I will
remove the line where it says you can use osm_type with reverse.
Your comment, lonvia, about the zoom level indicates that perhaps the zoom
levels have semantic meaning in addition to scale (ie, zoom of 18 will
produce a "building" and 17 a "street"). The OSM wiki page mostly talks
about scale, with a little semantics mixed in:
http://wiki.openstreetmap.org/wiki/Zoom_levels
Here is what I get using that same query with different zooms:
18+ - restaurant (node)
17 - footway (way)
16 - same
15 - suburb (node)
14 - same
13 - same
12 - same
11 - city (relation)
10 - same
9 - county (relation)
8 - same
7 - state_district (relation)
6 - same
5 - state (relation)
4 - country (relation)
3 - same
2 - same
1 - same
0 - same
Oddly, OSM has 0-19 and Nominatim has 0-18 (according to the wiki).
So does Nominatim (or OSM) use the zoom levels in a semantically
consistent way? For example, will zoom 10 or 11 always give the city, or
could a city show up at any zoom level depending on its size?
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Ticket URL: <https://trac.openstreetmap.org/ticket/5379#comment:2>
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