Simone, I think it was a mistake to add P402 to wikidata. From what I have been told, OSM IDs change too frequently to be reliable, e.g when user edits a road and splits some part of it with a different subset of tags. (Haven't tested it myself)
The reverse tagging is by far more valuable, but at the moment OSM editor does not make it easy -- there is no lookup or autocomplete when entering wikidata ID, and when entered, it shows as a number, not as text from wikidata label. On Jul 1, 2016 11:15, "Simone Cortesi" <[email protected]> wrote: > Hi Yuri, > thanks for the effort. > > where do the shapes come from? are they sourced from the WMF instance > of OSM data? > > I am wondering if adding P402 (OpenStreetMap Relation identifier) to > wikidata is worth doing. I've been doing it on some italian > municipalities: https://www.wikidata.org/wiki/Q103049 > > -Simone > > > On Fri, Jul 1, 2016 at 5:38 AM, Yuri Astrakhan <[email protected]> > wrote: > > This week we enabled geo-shapes service (non-production only). Given > > Wikidata ID(s), maps service can give you associated geoshapes (as > > topojson). Moreover, you can actually give it a Wikidata SPARQL query, > and > > as long as each ID is unique, it will get geoshapes for each one, and > keep > > other values as TopoJSON properties. > > > > What this means is that once its in production, you can do this: > > http://data.wmflabs.org/wiki/Regional_maps > > > > It's a bunch of maps (using graph extension), that are dynamically > generated > > by a template! You just give it a country and a few more optional > > parameters, and it draws the regions, and can show images from Commons if > > you hover over the state capitals (black dots). > > > > Next step - adding some interesting data on top of those maps, like > election > > results or rates of air pollution. That data will hopefully be stored > in a > > central repository, together with non-OSM geoshapes (like historical > country > > outlines, bird migration paths, etc). > > > > _______________________________________________ > > Maps-l mailing list > > [email protected] > > https://lists.wikimedia.org/mailman/listinfo/maps-l > > > > > > -- > -S >
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