On 11 September 2012 01:28, Steve Bennett <[email protected]> wrote:
> Ok, for the sake of argument, how would provider A demonstrate that > OSM's data was made by copying its "compilation of facts", when > providers B and C contain exactly the same facts? Because B and C would not contain the same facts. Every map source has unique errors, some of which are put there on purpose. Streets that don't exist, names spelt wrong, with the wrong road type, etc. It's not hard to show where data comes from, if you copy a lot of it. The third street I ever mapped, just down the road from my house at the time, has slightly different names on the road signs, the local street atlas, and google maps. I have no idea which of the three is officially correct, but OSM has what's on the signs. Stephen
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