[talk-au] Basic question

[Brendan Barnes]

Cheers Andrew :)

If you're interested in some trying some advanced mapping techniques, check
out:

https://wiki.openstreetmap.org/wiki/Multipolygon_Examples#Forest_.28One_closed_way.29
https://wiki.openstreetmap.org/wiki/Relation:multipolygon#Touching_inner_rings

Welcome to the mind-melting world of advanced multipolygons :D


On Fri, 8 Oct 2021 at 17:48, Andrew & Ingrid Parker <canlodge at gmail.com>
wrote:

> Thank you everyone. It is clear now that it is OK to have an area inside
> or overlapping another area. That is logical and contrary to what I had
> been told by another mapper. It may be the case that I misunderstood what
> they were saying.
> Cheers
> Andrew Parker
>
> On Fri, 8 Oct 2021 at 14:26, Andrew Harvey <andrew.harvey4 at gmail.com>
> wrote:
>
>>
>>
>> On Fri, 8 Oct 2021 at 11:53, cleary <osm at 97k.com> wrote:
>>
>>>
>>> Good mapping practice is to keep administrative boundaries such as state
>>> parks, conservation areas, suburbs etc separate from natural features such
>>> as water, waterways, woods etc.  While they sometimes approximate, they
>>> rarely coincide exactly.
>>>
>>> Tagging a state park as natural=wood is usually inappropriate because
>>> there will, nearly always, be parts of the park that are unwooded.  Best to
>>> map the park with its official boundary and then map the natural features
>>> separately using other unofficial sources such as survey and satellite
>>> imagery.
>>>
>>
>> Agreed, though as a rough first pass it has been common to tag
>> natural=wood on the administrative boundary if it's 90% correct, but
>> eventually as the mapping becomes more detailed separate natural=wood is
>> the way to go.
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