Hi Richard, hi Simon, thanks! The layer tag was already used widely, but I get that level is the one to use. I'll go through the tags, and add level.
I'm working on a write-up of the discussion, as a kind of "case-study", see http://bjohas.de/wiki/Maps/Kings_Cross. I'll contribute this to the OSM wiki once I've got clarity on all the tags. More generally, I think such "case-studies" could be useful, because they provide a "feature-focussed" perspective ("I want to map XYZ, how do I do it?") rather than a technical focus (meaning of tags). Do such pages already exist on the wiki for various features? Bjoern On 2 July 2016 at 17:31, Simon Poole <si...@poole.ch> wrote: > Bjoern > > The layer attribute is only used for overlapping OSM elements to indicate > their relative position ( indoor mapping should be using "level" (the SIT > tagging scheme has already been referenced). In a pure indoor scenario I > would consider layer unnecessary (JOSM will naturally complain bitterly, > but that's life, and standard renderers will simply ignore the level tag). > BTW Kings's Cross already has some indoor mapping (all overground at this > point in time): > http://openlevelup.net/?lat=51.531616&lon=-0.124528&z=19&t=0&lvl=0&tcd=1&urd=1&bdg=0&pic=0&nte=0&ilv=0 > > @all > > While we are on the topic, maybe it would be time to move the draft to a > more permanent status given that none of the other proposals has gained > traction or have substantial design issues. > > Simon > Am 02.07.2016 um 13:47 schrieb Bjoern Hassler: > > Hi Volker, > > My question does relate to overlapping steps, see > <http://overpass-turbo.eu/s/h5F>http://overpass-turbo.eu/s/h5F for > context (King's Cross underground, London). Yes, layer rather than level. > > I'm thinking about accessibility, as well as ease of mapping. Suppose you > are at a certain location, how do you determine what > steps/escalators/elevators connect to that location (from other floors)? In > other words, what are your access options to that layer. > > Similarly for mapping: because of the extensive network, it's hard to see > what's what. With layer on steps you could examine the data layer by layer. > If only footways have layers, what overpass query would you use to include > steps? > > Thanks for note on up/down. The wiki documentation does suggest this: "By > convention, the *direction of the way* should preferably point uphill, > but the key incline <http://wiki.openstreetmap.org/wiki/Key:incline>=* should > always be added to the way (see the talk > <http://wiki.openstreetmap.org/wiki/Talk:Tag:highway%3Dsteps>page > <http://wiki.openstreetmap.org/wiki/Talk:Tag:highway%3Dsteps>for more > details)." So no default direction as you say, but convention and > recommended incline tag. > > Bjoern > On 2 Jul 2016 12:04, "Volker Schmidt" <vosc...@gmail.com> wrote: > >> "layer" is not relevant here. The "layer" tag is only used to indicate >> the relative vertical position of the object with respect to other objects. >> So steps would only have a layer tag if they are crossing another way, but >> not connecting to it. >> >> To indicate the up or down direction of steps, you can use the tag >> incline=up|down. There is no default direction of steps, as far a I know. >> >> Your question may refer to the "level" tag. In that case your steps are >> connecting different floor levels of a building. I would not assign a >> "level" tag value to a stair that connects the first floor (level=1) with >> the second floor (level=2) of a building. >> >> Volker >> >> On 2 July 2016 at 12:28, Bjoern Hassler <bjohas...@gmail.com> wrote: >> >>> Hi all, >>> >>> What is the consensus on the layer tag for steps? >>> >>> In the direction of the way, steps should normally run uphill/upwards, >>> say from layer=-2 to layer=-1. >>> >>> Should the steps be tagged with layer=-2 or layer=-1? Or both (using >>> different tags)? >>> >>> Thanks, >>> Bjoern >>> >>> _______________________________________________ >>> Tagging mailing list >>> Tagging@openstreetmap.org >>> https://lists.openstreetmap.org/listinfo/tagging >>> >>> >> >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging >> >> > > _______________________________________________ > Tagging mailing > listTagging@openstreetmap.orghttps://lists.openstreetmap.org/listinfo/tagging > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > >
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