2018-12-15, št, 13:57 Andy Townsend rašė: > If I want to find the border > between Ireland and Northern Ireland, for example, I might not (yet) > find anything stopping me driving through but I will see something along > the lines of "speed limits now in mph" or the reverse.
And then the borderline in OSM will be drawn by simply connecting those scarce points on the roads with straight lines? > The fact that we can't get some boundaries from an on the ground survey > doesn't mean that we have to rely on "documents" for all of them, and > for a good reason - "documents" often contradict each other, even from > the same organisation. If you find an error in "documents" - why don't you inform the owner of the document so that they could fix the error (and maybe fix data in OSM until official document is fixed)? My opinion is that OpenStreetMap should COLLABORATE, not ISOLATE itself. Collaboration does NOT mean OSM will become just a fusion of data from different official documents. The fact that there are some errors in official documents means that we want to resort to guesswork and extremely simplified geometry for ALL non-physical objects? How many border vertexes are actually mapped by observing physical reflections in OpenStreetMap? 0,00001% or less? And if I was to use an "ad absurdum" argument type: a lot is mapped by using so called "satellite imagery", which is not a photography, but a number of them processed and merged to produce an "Orthophotographic MAP" which is a DOCUMENT. Where will it lead us to? To methods of ~2006 when in order to map a building we had to walk around the building with GPSR (with some distance in order to minimise building obstruction to GPS signal), then measure the building and use that information to map ONE building? And note, building is a physical object which can be observed directly, but is quite difficult to measure with tools most mappers have... (Note: the point of ad absurdum argument in discussion is to point out flaws in initial statement, not to ridicule, so please do not take is as an offence) -- Tomas _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
