[Tagging] Tagging method of amenities at camp_sites

Jan van Bekkum jan.vanbekkum at gmail.com
Fri Mar 27 14:07:21 UTC 2015


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 <marc.gemis at gmail.com> 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 <jan.vanbekkum at gmail.com>
> 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 <marc.gemis at gmail.com> 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 <marc.gemis at gmail.com>
>>> 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
>>>>
>>>>
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