[Tagging] area=yes on polygones (was Block names)
osm at tobias-knerr.de
Fri Apr 27 20:06:09 BST 2012
>> "area=no" can be considered a "sic!", but that tag should never have any
>> actual effect.
> Effect on what?
On renderers or any other applications working with OSM data.
> If I were writing a renderer, I would assume that a
> closed way railway=platform represented an area unless it was tagged
> area=no. So that's an effect.
If I were writing a renderer (actually, I am), I would assume that a
closed way does not represent an area unless it
a) has an always-area tag such as landuse
b) is tagged with area=yes.
Your idea that some tags should make a closed way into an area by
default, unless there's also a certain other tag (like area=no) present,
is not established mapping style as far as I can tell.
Currently, tags are either unambiguous, or the default assumption is
"not an area".
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