-- Original message --
From: ba...@ursamundi.org
Sent: 26/05/2015 12:07
To: tagging@openstreetmap.org
Subject: Re: [Tagging] Wiki: Key:level: proposed rewrite
Level should be the layers relative to the (lowest) ground, regardless of how that's defined in the building, for consistency sake. As often as not here, 1 is either the second floor off the ground or the ground floor, with G being Ground. Granted, this gets a little tricker, with complex examples, such as Doernbecher Children's Hospital, which has no 2nd or 4th floor (really, there's actually a gap only attached by elevator shaft and stairwells!), with floors 1, 3, and 9 being ground level. Or University Hospital South at Oregon Health Sciences University, in which floors 1, 8 and 9 are ground level (with 8 connecting to Doernbecher's 8th floor, and the Portland VA's third floor).
On Sun, May 24, 2015 at 9:56 PM, pmailkeey . <pmailk...@googlemail.com> wrote:
On 25 May 2015 at 01:52, Andrew Errington <erringt...@gmail.com> wrote:
Yes, I object.level=* is an "internal" value. Its meaning is absolute, which is necessary because it is used worldwide.When the value is displayed, the displaying software should localise the result according to either the viewer's language, or viewer's location. Perhaps you are not aware that in some places what British people call "ground floor" is called "first floor". However, it is still the same floor, so it's appropriate to tag it the same (level=0).The numbers are not meaningless. They are clearly defined in the wiki.Which floor is 'ground floor' ? the lower one, the upper one or one in the middle ? Look at the following example building with 5 floors:OSM is for humans - humans need to understand it. Level with ref to buildings equates to 'floor'. Floors have names such as "4th Floor" and often signed as "4". Software should not need to make a conversion as none is necessary - OSM 'level' should equate to the floor name as used by the building operators.I note you're going for floor 1 = level 0 - which is clearly silly. I am aware of the US/UK numbering differences - an ideal illustration for not having an 'internal' scheme but to simply apply the correct label for the floor for that locality. I don't see why the Americans would be expected to specify level 1 for the second floor - there's no logic to that.In your 'numeric' scheme, how do you deal with 'missing' floors ? (e.g. G,1,2,4,5,6,7,8,9,10,11 ?) In 'my' naming scheme, there isn't a missing floor with that set of names. Are you expecting to do a local conversion for level 3 upwards ?Surely naming is simpler - no confusion and labelling matches what people find on the site.L2L1L0 <-- ground floorG1
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