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On 2013-07-21 14:06, Pieren wrote :
On Sat, Jul 20, 2013 at 11:04 PM, Friedrich Volkmann <b...@volki.at> wrote:Anecdote and fundamental discussion...Adresses are attributes of physical objects, e.g. a parcel, a house, or a part of a house.Parcels can be merged and deleted, houses can be replaced, shops/restaurants/POI's may change at any time but the addresses remain. It is more permanent as a simple 'attribute' than all the 'features' you mention. When I built my house, I went to the town hall to get a number assigned. I expected a problem because the houses on each side were nr 1 & 3. - No problem, sir, everything was planned, you get nr 2 [normally on the other side] - ahem, there are 2 parcels between 1 and 3 - No problem, sir, everything was planned, see (pulling plates), you get nr 2a - ahem, I built my house on the second parcel - No problem, sir, then (swapping plates) it's nr 2b for you So did But only for a few years. The communes merged, street homonyms were renamed and... all houses renumbered thoughtfully. I've lived at nr 5 since then. Only thing is, I almost lost a friend. The guy living at nr 26 :-) I hope you won't mind my feeling that my house is the object and the numbers the attributes. Your speaking of objects and attributes delights me. That's exactly the way I think of the different features in OSM. Unfortunately, in the OSM tag definitions, there is no mention of being an object or an attribute. And in practice there can be much confusion. An object is the physical thing. It's unique. An attribute is the different forms, usage etc... of the object. It can be multiple. We've already talked of how to tag a château historical=castle It is strange to seem to say that a castle is "a historical", especially if it's not historical. In my mind, it should be: building=yes castle=yes (or =type IF AND ONLY IF any type is exclusive, e.g. =château instead of...) château=yes hotel=yes (because château can be used as hotels in addition to being château) historical=no (or yes or 1200?) Same kind of problem here with a sort of concrete basin, like a swimming pool, where fishes to be fished are thrown This object is undoubtedly a piece of water: water=? But OSM seems to require that object to be called "a natural", although it's not natural at all. Furthermore, I want to state that this water is made for leisure with a an attribute "leisure=". And once again, Osmose clashes with saying that "a leisure" is a conflicting object once again. Tag en conflitIn my mind, that tagging should resemble this: water=basin natural=no phishing=yes leisure=yes (industrial=no) pay=yes drinks=yes (to spare a separate amenity object) talking=no bicycle=carefully ;-) Cheers,
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