[OSM-talk] Indiscrimate layering

D Tucny d at tucny.com
Sun Dec 21 12:56:48 GMT 2008

2008/12/21 OJ W <ojwlists at googlemail.com>

> Doesn't layer=-1 mean that something should be 'below' the landuse
> polygons when rendering?  So if you have a river at level=-1 on a
> landuse=farm, then you will never see the river because it's under the
> (default layer=0) ground.
> In fact, I'm surprised the robot didn't automatically add a tunnel=yes
> to the rivers that were tagged layer=-1...  (which would probably be
> valid for those cases where a stream just goes through a pipe to get
> under the road - that could hardly be described as 'a bridge')

I thought landuse was further rendered below everything else... And looking
at it, a waterway at layer=-1 does render on top of landuse in osmarender at

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