>From an IT perspective we should be keeping form and function separate. There are two facts here:
1) the altitude of that point is 14505 ft - it is what it is, whatever units you use. Saying the altitude is 4421.124m is also correct. The value needs a number and a unit, in an agreed format. It doesn't have to be human-readable (although that helps), but it must be computer-parsable. The representation of the both the number and the unit are for "internal use" and are expected to be formatted in some way before being presented to a human (decimal points/thousands separators for example). 2) there is a sign that reads "14,505 feet" - human-readable and recognisable. It is trying to conflate these two things that makes life so complicated in OSM. Even street name signs suffer from this - streets are called whatever the authority says they are called. If there is a sign saying something else, then there are two facts here, both equally valid but from different perspectives. It's a shame we don't have any discussion about OSM information modelling. I could start some, but because that would inevitably lead to some concept of "right" and "wrong" ways of tagging, I will save my energy for more productive things. //colin On 2015-04-03 13:18, Warin wrote: > On 3/04/2015 8:33 PM, Bryce Nesbitt wrote: > > On Fri, Apr 3, 2015 at 2:14 AM, Warin <[email protected]> wrote: > ele= only takes meters as a unit .. the reason states is that "Renderers have > no way of doing conversions on the fly to local units while creating image > tiles" ... and this is an 'approved' tag. > That's mapping for the rendering's back-end SQL database. Not saying it is good... but that is what is written in the wiki. > If I'm staring at a sign that says "14,505 feet", that's certainly how I want > to tag it. Agreed!!!! Conversions should be done remotely rather than by a tired mapper at 14,505 feet! And are best done by a tried and tested code. _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging [1] Links: ------ [1] https://lists.openstreetmap.org/listinfo/tagging
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