[OSM-talk] Azimuth measurement

[Martin Koppenhoefer]

2014-04-09 16:18 GMT+02:00 JB <jbosm at mailoo.org>:

> I did start to add lower_side=right to barrier=retaining_wall,
>> man_made=enbankment and natural=cliff.
>>
> Argh, why? Written in bold in the wiki. Is it really a solution to add a
> redondant tag? Why not contributing right from the beginning than adding
> more cases to take into account?



implicit directions/facings have always been a problem, because of some
mappers not being aware of the conventions (even when written in the wiki),
examples include waterways, steps. At least for steps I am mapping
incline=up for some years, because the default direction was questioned.
When there is a tag things get more obvious and if people don't know their
meaning there is some hope they will look it up.

JOSM has for some time now a list of direction dependent tags to warn on
when you change the direction.

cheers,
Martin
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