[Tagging] Rivers classification

Daniel Koć daniel at xn--ko-wla.pl
Sun Aug 6 21:33:55 UTC 2017

W dniu 06.08.2017 o 23:19, Richard pisze:

> The width is fine for many small rivers where mapping riverbanks would be
> a nonsense and should be respected by the renderer.
> But what you ask for seems like tagging for the renderer. Most of the
> information is already there, either river width or the geometry determined
> by riverbanks.

Using classification is not tagging for the renderer, because it's not 
cheating that it's something different - it's just simplifying and sorting.

It's a useful generalization, just like having different types of roads 
as a general property. Highways of course have width too and you can 
also draw the geometry with area:highway=*, but that's a different 
thing. On the macro scale you don't want all the details, only general data.

"Like a halo in reverse" [M. Gore]

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