Yesterday , I discovered that the disneyland railway tracks appeared on Google Maps ... and are an exact carbon copy of the OSM one ...
OpenStreetMap
Yesterday , I discovered that the disneyland railway tracks appeared on Google Maps ... and are an exact carbon copy of the OSM one ...
Discussion
Comment from Jean-Marc Liotier on 15 December 2009 at 17:43
If they are an exact carbon copy of reality and feature a credible source, then it is acceptable... But indeed if reality diverges and no source is cited, this hints at malpractice. If you have any question, your best option is to just ask the author privately.
Comment from PhilippeP on 15 December 2009 at 18:36
Well, data in OSM is based on French cadastre ... Google might have the same source ... but both seems to have the very same nodes ... seems odd ...
Comment from wieland on 17 December 2009 at 21:40
Did you compare
osm.org/?lat=48.87209&lon=2.7795&zoom=15&layers=B000FTF
and
http://maps.google.com/?ie=UTF8&ll=48.871264,2.779541&spn=0.013323,0.038581&z=15
I don't see the tracks on GM.
Is it removed?
Comment from PhilippeP on 18 December 2009 at 10:13
Strange , I'll check again from home ...
Comment from wieland on 18 December 2009 at 18:05
And how do you know about the nodes?
Normally GM shows only pics and no data.
But you can trick them by using routing.
Comment from PhilippeP on 18 December 2009 at 19:12
Well there is a node where there is a break in an almost straight line ...
But I think I confused myself with the mapsurfer hack that replacs streetmap in GM with OSM , it seems it now also replaces the data on top of the aerial pictures seamlessly ...it tricked myself ...
I'm feeling Goofy now :)
Case closed : it WAS OSM data :)