Take a look at this example, the Galata Bridge in Istanbul, Turkey http://www.openstreetmap.org/search?query=galata%20bridge#map=19/41.02271/28.97477
The tunnels under the streets are lined with shops on both sides of a wide walkway. It's essentially a mall and all of it is underground. I added a few shops and added the layer=-1 tag to them but I am not sure how such shops should be rendered. GraphHopper can find them if you ask for a walking route to one of them but stumbles on the same route for a car. It leaves you on the roadway on top of the bridge nearest the shop, which is at least realistic if not practical. On Mon, Jun 8, 2015 at 4:45 AM, Ilpo Järvinen <ilpo.jarvi...@helsinki.fi> wrote: > On Mon, 8 Jun 2015, Richard wrote: > > > On Mon, Jun 08, 2015 at 01:57:52PM +0200, Dominik George wrote: > > > > > In that case, I believe the layer=* tag should be used instead, giving > > > the object the same layer as the tunnel or bridge. > > > > not such a good solution. > > > > For real-world-node-objects where the node is part of the tunnel/bridge > > way I think it can be expected that his node implicitly shares the tunnel > > +layer values. > > > > That leaves the problem with objects where the node is *not* part of the > > tunnel/bridge way such as a waste basket next to the way. > > Seems like in this case a relation is needed ? > > Drawing bridge outlines (effectively drawing bridges as areas) would help > you to make the connection without relations. Then only complex cases > would need to depend on relation. > > > -- > i. > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
_______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
