For cities there must be a point associated to the polygon to tell where the center is (maybe 2 if the city is poly centric, like Budapest maybe ?)
djakk Le mer. 8 août 2018 à 05:25, Warin <61sundow...@gmail.com> a écrit : > On 08/08/18 12:52, Bill Ricker wrote: > > > > On Tue, Aug 7, 2018 at 6:41 PM, Graeme Fitzpatrick <graemefi...@gmail.com> > wrote: > >> >> >> >> On 7 August 2018 at 21:56, Daniel Koć <daniel@koć.pl> wrote: >> >>> >>> For example nobody would say that a city is a point >> >> >> I'm not disagreeing with you, but people do refer to them, & somehow even >> measure them, as points! >> >> I'm sure that you have the same situation in your country but an e.g. is >> my State capital, Brisbane: https://en.wikipedia.org/wiki/Brisbane, >> which >> >> covers an area of 15842 km2, but is still apparently found exactly at: >> ... >> >> > Quite so. > To measure distances between towns/cities, some point is needed. > While in theory someone wishing to do so could query for the Admin level > outline and compute the centroid, when a government entity has declared a > named point to match the Admin level boundary, it's convenient if everyone > uses the same one. > If there are countries which for which open-licensed town centers aren't > available, the local mapping communities can decide what is right for them. > Postoffice, Town Hall, Centroid, Flagpole, whatever. > > > The centre of a place is a little cultural, a little of frequent use and a > little from signs. > In Europe I suspect it is the railway station ..lots of signs pointing > there. > In rural Australia I would go with the post office, though the pub is > quite popular. :) > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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