On 16/12/19 21:58, Martin Koppenhoefer wrote:
Am So., 15. Dez. 2019 um 04:39 Uhr schrieb Warin
<61sundow...@gmail.com <mailto:61sundow...@gmail.com>>:
I am against overlaying one way on top of another.
The wiki suggests both tags together on a single way is acceptable;
https://wiki.openstreetmap.org/wiki/Tag:place%3Disland#Islands_in_the_sea
Given the suggested alternatives, I prefer both tags together.
what do you do when the coastline is split in several parts (there may
be various reasons for this, some have to do with admin boundaries in
cases where the island is split into several administrative divisions
that end at the coastline)?
Make the place=island into a multipoygon relation. It has been done and
looks to work, as I recall where one island had boundaries for national
parks imposed on the coastline, ion another where beachg asnd and scrub
were imposed on the coastline.
How can I know to which objects apply the gns tags?
Look at the history as to when the gns tags were applied, if not clear
at the time of application then ask that mapper?
Overlaying ways is one of the possibilities (personally I do not
prefer it, but it is generally accepted, especially as the only
alternative in many cases are relations, which also are contested),
and you didn't provide any reasons why it should be thoroughly rejected.
I asked for ideas. I personally have thoroughly rejected overlaying
ways. What others do is up to them.
There is an area that I know of where overlaid ways exist .. and it is a
real mess to edit as some nodes only join to one of the ways... It was
remotely mapped by an 'expert'. They objected to my deletions, which are
based on existing data and a little knowledge rather than satellite
imagery and guess work.
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