[Tagging] Tagging natural or historic regions

althio althio.forum at gmail.com
Tue Mar 29 13:10:00 UTC 2016

Others gave opinions, I agree with a lot of statements.
So let me give a round of personnal agreement (+1's) to these:

> Personally I would prefer an approximate polygon to a node.

> I don't like boundary=informal though. It should be something more verbose regarding what kind of region this is (natural/geographic, (low) mountain range, area of lakes, forest, desert, plains, cultural, ethnographic, wine, etc.)

> who if not the crowd would be able to iteratively come to approximations of these borders. As long as the existence of the area is not disputed all together, there will be an approximation for its border.

> Or we accept "best-guess" polygons with "incremental refinement."

> Fuzzy boundaries do have their place.

> I agree that there are advantages to including fuzzy boundaries, but we should first document how to tag these features.

> Most polygons in OSM are simply not precise enough to define the property boundaries or even the object's position exactly. Such measurements are, practically speaking, beyond the capability of our instruments, and we must accept that in our tagging philosophy. Obviously, forests and woods, wetlands, and the scrub bordering them are not clearly defined. Yet we usually tag them as areas rather than nodes so they will show up in a more useful manner on a map.

>>well, as was proposed above, we could introduce a way to store fuzzy areas without using polygons, or by using more than one polygon as one object
>May be: Using a minimum (core area) and maximum (extension area) estimation as one relation.

- althio

On 27 March 2016 at 11:08, David Marchal <penegal at live.fr> wrote:
> Hello, there.
> At least here, in France, there are numerous regions, whose unity is based
> either on a common historical background, for example as a medieval county
> or duchy like the Barrois, or on a uniform natural landscape, as the Bauges
> mountains or the Mont Blanc massif. These regions are often called "pays" in
> French, but it should not be understood as a nation, and the regions I'm
> talking about do not always have an administrative representations, being
> often known only as a traditionally-named area.
> Whatever, how to map such regions? I asked on a French forum, but it seems
> that the issue has not really been addressed, at least not from our point of
> view, but there may be an existing tagging scheme for that, as I see no
> reason for this issue being culturally restricted to our country. I assume
> that, as there areas do not always have clearly defined borders, they should
> be tagged as a single node, but, still, how to map them?
> Awaiting your answers,
> Regards.
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