It is a bit of a philosophical question: do you prefer a placeholder or a polygon of which you don't know how correct it is, for example a forest behind the campsite that may or may not be part of the campground.
On Fri, Mar 27, 2015 at 1:57 PM Marc Gemis <[email protected]> wrote: > In many cases you will be able to determine the area from the aerial > images (thinking of Western European campsites). > I assume that in the campsites you visited, the actual area was rather > fuzzy and that the exact area will never been known, not ? OSM has no > solution for fuzzy areas anyhow. > > Is it difficult to obtain an approximation of the area when you already go > through the effort to position all the amenities as individual nodes ? > you can always leave a note or fixme tag to indicate that the shape has to > be established. > > just my .5 cents > > regards > > m > > On Fri, Mar 27, 2015 at 12:37 PM, Jan van Bekkum <[email protected]> > wrote: > >> So if you don't know the real shape of the polygon it would be best to >> create a placeholder polygon (like a circle - it will be clear that it is a >> placeholder) and put all amenities inside it until the real shape is known. >> >> On Fri, Mar 27, 2015 at 10:33 AM Marc Gemis <[email protected]> wrote: >> >>> Overpass understands this. When I look for all toilets in the "Zoo >>> Antwerpen" with [1], I only find toilets in that Zoo >>> >>> regards >>> >>> m >>> >>> [1] http://overpass-turbo.eu/s/8qL >>> >>> On Fri, Mar 27, 2015 at 10:24 AM, Marc Gemis <[email protected]> >>> wrote: >>> >>>> >>>>> OK, I did not know that ! Is this "is-in-polygon" test something that >>>>> is already being done ? Examples ? >>>>> >>>> >>>> Nominatim that adds the address of the building to the POI is an >>>> example of a similar test / algorithm. >>>> Sorry, don't know any other examples. But it just makes sense that you >>>> do not have to define inclusion of something when you can determine that >>>> from it's position. >>>> >>>> I also only know 1 website that supports the site relation, the >>>> geschichtskarte for historical items >>>> >>>> regards >>>> >>>> m >>>> >>>> >>> _______________________________________________ >>> Tagging mailing list >>> [email protected] >>> https://lists.openstreetmap.org/listinfo/tagging >>> >> >> _______________________________________________ >> Tagging mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/tagging >> >> > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging >
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