[OSM-dev] 0.6

Stefan Keller sfkeller at gmail.com
Tue May 6 22:14:12 BST 2008

> > In any case, ways would need to be mandatory tagged as "boundary" (if
> > part of a polygon).
> Nope! By being part of a relation, they are implicitly a polygon boundary.
Yep! Of course you can do much with relations...
But there are simpler and more reliable ways from an encoding perspective.
That's a first big pro for having area as a distinct data primitive.
The other pro is that being a primitive it's semantically clear what's being

> It currently is a semantic distinction, so the answer is "tags".
That's again something one should definitely avoid:
Don't make such an important geometry type like area dependent on user tags.

- S.
2008/5/6 Iván Sánchez Ortega <ivan at sanchezortega.es>:

> El Martes, 6 de Mayo de 2008, Stefan Keller escribió:
> > > If it's closed it's unambiguous
> >
> > How do you make a difference between streets that are closed and areas,
> > encoded as closed ways?
> It currently is a semantic distinction, so the answer is "tags".
> --
> ----------------------------------
>  Iván Sánchez Ortega <ivan at sanchezortega.es>
> Un ordenador no es un televisor ni un microondas, es una herramienta
> compleja.
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