[OSM-dev] likenesses

[Iván Sánchez Ortega]

El Jueves, 1 de Octubre de 2009, SteveC escribió:
> Thoughts?

Likenesses -1; implications +1.

e.g.:

highway=autobahn implies highway=motorway
highway=motorway implies oneway=yes
highway=motorway implies highway=road


Basically it's just the same idea, but by using the word "imply", it suddenly 
becomes a strictly logical proposition. I personally feel that SteveC's 
proposal of "likenesses" (A is like B) can be misleading, 
whereas "implications" (A implies B) are univocal. Likenesses are just 
aliases, implications add more meaning to the tags.

So, osm2pgsql (or whatever) should "unfold" everything, unless there are 
existing values that contradict (e.g. highway=motorway, oneway=no).


(I haven't read the entire thread, but I think some other people already agree 
to this)


Cheers,
-- 
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Iván Sánchez Ortega <ivan at sanchezortega.es>

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