Hi all As OSM id isn't a stable id (and will never be I think), the only way to reliably achieve what you want Stuart is to proceed with a ref tag. It's a long term job and often questioned/refined to best match codification scheme rolled out on a specific place/local level.
We may take advantage that two nodes can't overlap on OSM, eventually for nodes but it won't work for ways. My 2 cts François Le mar. 19 mai 2020 à 10:04, Philip Barnes <p...@trigpoint.me.uk> a écrit : > On Tue, 2020-05-19 at 09:43 +0200, European Water Project wrote: > > Dear All, > > I am looking for a way to create permanent links to specific objects > (fountains and cafés) with images within our application ... and I have a > couple of questions. > > How quickly do OSM node and ways numbers mutate ? What percentage should > I expect to change each year. If the percentage of ids mutates slowly > enough .. maybe this is still the best bad short term option ? > > I was pointed to this wiki : > https://wiki.openstreetmap.org/wiki/Permanent_ID > > On the discussion page, it is mentioned that a solution is being targeted > for end 2020 . Will there be a tool to translate actual osm node and ways > numbers to the new permalink ids. > > Apparently Mangrove uses GEO URI to create perma links towards objects. > https://en.wikipedia.org/wiki/Geo_URI_scheme. How do they deal with node > repositioning ? I could create a link name with first 5 latitude num > followed by first 5 longitude num... but as soon as someone moves the node > I would get a broken link... > > > I think that will depend very heavily on what the object is. Something > like a drinking fountain that is mapped as a single node and is too small > to be improved into a way will be quite stable as there is no reason to > improve it. > > Other nodes may change, shops/pubs/restaurants mapped as nodes can > obviously be improved and the tags transferred to a building object. > > Although relying on a node id is not the best way, something based on > maybe overpass that finds the tags seems a far more stable way to me. > > Phil (trigpoint) > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
_______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
