[Tagging] layer=-1, rivers, bridges and tunnels

Richard Z. ricoz.osm at gmail.com
Sun Apr 6 09:28:38 UTC 2014


On Sat, Apr 05, 2014 at 11:04:13PM +0300, Ilpo Järvinen wrote:
> On Sat, 5 Apr 2014, Richard Z. wrote:
> 
> > On Fri, Apr 04, 2014 at 09:41:56PM +0200, André Pirard wrote:
> > 
> > In addition, "key:layer" *is not* rendering layer/order.
> > 
> > One example, a road is going through a forest, both should have implicit 
> > "key:layer" ==0. 
> > Obviously they still have a defined rendering order, otherwise our roads 
> > would disappear where they go through forests.
> >
> > If the road (for whichever reason, valid or not) has layer=-1 and the forest 
> > just the implicit layer==0, the road should still be drawn above the forest.
> 
> Currently roads vanish regardless of the drawing order: 
> 
>   http://www.openstreetmap.org/#map=8/61.493/27.658

thanks for pointing out.

In that case I consider it rather bizarre that in the same situation rivers
don't vanish in Mapnik.

Imho it should be fixed either way.

Richard



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