[Tagging] Livestock=* to specify the livestock animals in a farmyard or meadow?

Paul Allen pla16021 at gmail.com
Mon Aug 19 11:34:14 UTC 2019

On Mon, 19 Aug 2019 at 12:16, Warin <61sundowner at gmail.com> wrote:

That is a negative for me, I like property tags that can be used anywhere
> appropriate.

The authors of at least one editor disagree with you there.  Unless all of
the possible
values are applicable to all objects for which that property is
appropriate, they won't
implement a preset for it.  If objects of type A get one subset of values
but objects
of type B get a different subset of values then it won't get implemented.
they populate drop-downs from the wiki and/or wikidata.  In this particular
all farm animals might be found in zoos but not all zoo animals will be
found on
farms.  Having a common property tag would lead to a drop-down for farm
animals including pandas, bears, gold eagles, reticulated pythons, etc.
it would be populated from the same (hypothetical) wiki(data) page that
covers zoo
and farm animals.

I don't necessarily agree with the thinking of those editors in all the
cases they've
applied it to, but that IS what they think.  And if a tag isn't supported
by popular editors
it won't get used much.  In this case, I wouldn't want to have to wade
through a drop-down
of all zoo animals to add farm animals, so I tend to agree with them.

OSM does not have separate  height tags for buildings, bridges, signs,
> fences etc etc. One tag makes much more sense.

A height is a height is a height, whatever it is applied to.  Many zoo
animals are not farm animals.
A height is a numeric value, a list of animals is a list: editors handle
numeric values and lists
with different GUI interfaces to make life easier (type in a number versus
add items in a list).

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