[OSM-talk] [tagging] Feature Proposal - RFC -(man_made=mineshaft)
osm at tobias-knerr.de
Wed Oct 21 01:26:57 BST 2009
> Shaun McDonald wrote:
>> If you just add a disused=yes, pretty much nothing that works with the
>> OSM data will recognise that it is no longer a cafe.
> Don't map for the renderer, router etc. etc.
> You should be writing a post asking why they don't recognise such a
> widely used tag.
Because tags like disused=yes conflict with a general principle in OSM:
We don't have a fixed set of tags and mappers can invent and use their
own tags, so it should be possible for software to ignore tags it
doesn't know without causing problems. If I don't support distinguishing
between different variants of amenity=parking, I just ignore parking=*
tags entirely, and while the result is less useful, it's still correct.
If I don't support disused features, I can just ignore disused=yes tags
... no wait, I can't.
Of course, in order to make mapping convenient, it's sometimes necessary
to break that concept (with access tags, for example), and probably we
won't be able to get rid of
Unfortunately, people didn't seem to like my status=disused/... proposal
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