Yesterday , I discovered that the disneyland railway tracks appeared on Google Maps ... and are an exact carbon copy of the OSM one ...
OpenStreetMap 開放街圖
Yesterday , I discovered that the disneyland railway tracks appeared on Google Maps ... and are an exact carbon copy of the OSM one ...
討論
由 Jean-Marc Liotier 於 2009年12月15日 17時43分 發表的評論
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.
由 PhilippeP 於 2009年12月15日 18時36分 發表的評論
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 ...
由 wieland 於 2009年12月17日 21時40分 發表的評論
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?
由 PhilippeP 於 2009年12月18日 10時13分 發表的評論
Strange , I'll check again from home ...
由 wieland 於 2009年12月18日 18時05分 發表的評論
And how do you know about the nodes?
Normally GM shows only pics and no data.
But you can trick them by using routing.
由 PhilippeP 於 2009年12月18日 19時12分 發表的評論
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 :)