[OSM-talk] Key:layer update
Russ Nelson
nelson at crynwr.com
Thu Mar 13 01:06:41 UTC 2014
Pieren writes:
> On Wed, Mar 12, 2014 at 3:22 PM, Frank Little <frankosm at xs4all.nl> wrote:
> > Richard Z wrote
>
> > As mapped, the waterway=stream (Way #138911739) runs underground (layer=-1),
> > probably through a culvert given the way the stream left and right are
> > separately outlined as waterway=riverbank (and without layer=*). The way
> > (stream) should be tagged as a culvert.
> >
> > Perhaps there is in reality a bridge not a culvert, in which case the road
> > needs splitting and the appropriate new road segment tagged as bridge=yes.
> >
> > In either case, a layer tag is not needed for rendering.
> +1
Nonetheless I add one out of habit. But I would be happy to stop,
because as noted, the bridge or culvert carries an implicit layering.
> Bridge or culvert, one way has to be split (the road for bridge or the
> stream for culvert)
My rule of thumb here is how it looks from above: if the people on the
top would perceive it as a bridge, I split that way and mark is as a
bridge. Otherwise I split the waterway and mark it as a culvert.
--
--my blog is at http://blog.russnelson.com
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