On 19-Jan-17 06:48 AM, Marc Gemis wrote:
I thought we went through this discussion on sell or vending a couple
of months ago, where the fear was that we would start "importing" the
sales catalogue of shops and that it would be very hard to maintain.
Yes. It was I who raised it.
Those who object to such detail don't have to add it, use it ... many won't use
certain OSM tags now as they have nothing to do with them.
Some people on that thread requested more and more detail .. so I suggested
ways that that could be done.
Then others said that was too much detail ... and there people that wanted the
detail dissipated in to the eather.
A vending machine typically sells 1 type of product, so there it is
more or less doable.
Still there will be people who would like to different between the
types of bread or brands of candy or sodas in vending machines and
start mapping that as well. Is this what we want ? Or is the current
level of detail sufficient ?
Detail will get finer as time goes by.
Look at the highway tag ... now has incline, smoothness, surface ...
Progress is not necessarily good for all but will occur. If undirected it may
well be uncoordinated.
OSM is now getting 'sells' tags by individual names ... meaning there will be a
lot of new tags that will need some thought.
Examples of this are the present fuel, motorcycle and bicycle shops .. all
separate sells tags that are individual schemes... little co-ordination.
Consider having each highway type with separate ways of tagging smoothness
motorways have evenness fine to poor
tracks have roughness; very to little
residential have smoothness 0 to 10
That is where shops selling detail is headed.
On Wed, Jan 18, 2017 at 4:35 PM, joost schouppe
<joost.schou...@gmail.com> wrote:
2017-01-18 15:33 GMT+01:00 Dave Swarthout <daveswarth...@gmail.com>:
This tag started out being for a very specific type of shop that sells
only one item, motor fuel, in small volume containers. There is a need to
keep shops of this type separate from large full-service facilities that
sell motor fuel in quantities large enough to refill cars or trucks. lt has
now been expanded to include other types of fuel like kerosene and even
charcoal. Fine. That's logical and sensible.
But if you want to rework the tagging structure to handle such borderline
cases as fuel shops that also sell bread, then I feel that would be
defeating the original purpose of this tag. Where will these additions and
modifications stop? A logical but not particularly useful extension of that
reasoning might involve redefining the entire structure of the shop tag
hierarchy by using shop=yes, bread=yes, Crest_brand_toothpaste=yes,
fuel:diesel=yes, knitting_supplies=yes, etc. etc.
Well, I for one like to take a middle ground between what works now and what
we will probably need in the future.
Vending machines are mapped entirely according to this model, using
vending:*=* . By the logic we used for shop=*, it should have been
amenity=bread_vending_machine or amenity=vending_machine + bread=yes. The
vending:* tagging style makes it easier to process all sorts of data, and
easily allows further extension.
I wouldn't say we should change shop tagging styles to that. I was merely
taking the stated position that fuel shops should follow that structure to
its logical conclusion. And I'm starting to think we might actually have to
consider it to avoid ever further cluttering of the shop types.
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