[Geocoding] Distinguishing between exact and interpolated geocoding results

[Mathias Versichele]

Thanks for the info. Little bit hacky, but that's ok :-)

On Thu, Feb 12, 2015 at 9:33 PM, Sarah Hoffmann <lonvia at denofr.de> wrote:

> Hi,
>
> On Tue, Feb 10, 2015 at 03:53:17PM +0100, Mathias Versichele wrote:
> > for a geocoding script I am developing, I would like to distinguish
> between
> > exact (nodes or buildings with addr:housenumber tag) and interpolated
> > (addr:interpolation=*) results. Looking at the json, I can't seem to find
> > any way to distinguish both types of results. The address part always
> > contains 'housenumber'...
>
> It is currently not possible to distinguish between mapped and interpolated
> housenumbers. The information is not even retained in the database because
> interpolations are exploded to single housenumber nodes on import. Your
> best bet would be to check first if the class/type is place/house (only
> those can be interpolated) and then check if the coordinate returned
> differs from the actual coordinate of the OSM node returned. Interpolated
> house numbers have a computed coordinate but the id of the node the
> interpolation was started from. It all sounds terribly hacky, I have to
> admit.
>
> Interpolations are very high on the list of things that need to be
> rewritten (interpolating on the fly, basically) and that would be a good
> time to reconsider how they are returned.
>
> Sarah
>



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