[Photon] Reverse lookup can be inaccurate

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Sun Apr 7 23:14:40 UTC 2019


Here's an example: 
https://photon.komoot.de/reverse?lat=25.189943803430097&lon=-6.257199894472916&radius=300 


Those coords work fine in nominatim.

Nominatim would be ideal for what I'm doing. However, the high system 
requirements are a significant barrier, and I find it to be slower than 
photon.

On 2019-04-07 6:37 p.m., marc tobias wrote:
> Can you list a couple of example of the input (or full URL), what it
> returns and what you'd expect it to return? From your description it's
> not clear if we're talking about missing or inaccurate data or an
> issue with the search engine.
>
> https://nominatim.openstreetmap.org/reverse.php?format=html&lat=-7.5164331795745065&lon=18.632812500000004&zoom=5
> has a visual playground to click around. Choose zoom 5 = state. The
> smaller red circle is the search position, the larger blue circle is
> the result returned.
>
> https://wambachers-osm.website/boundaries/ is a project for viewing
> and downloading administrative boundaries. 2 = country, 4 = state.
> This could be useful to identify missing boundaries.
>
> Adding missing boundaries is usally a task for local mappers. Not
> every government has open data and licenses need to be inspected
> first. There's a recent interview with mappers from Kenya how
> that looks "on the ground" and how others can help.
> https://blog.opencagedata.com/tagged/countryprofile
>
> If the issue is the search engine it should be filed in
> https://github.com/komoot/photon/issues
>
> I pointed to nominatim, that's a different search engine. Komoot
> imports data from Nominatim dumps. If your usecase is reverse
> geocodig to state level (and not e.g. search-as-you-type) it might
> be an alternative here.
>
> marc tobias
>
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> Photon at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/photon



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