Christian Quest <[email protected]> writes: > 2013/1/5 Simon Poole <[email protected]>: >> I suppose the obvious question is: what was -your- source for the building >> outlines? It is a fair assumption that google is simply using the same. >> > > It is even more obvious that it is not a plain copy of OSM data as the > roads and building shapes are not the same (buildings more detailed on > Google).
The basic issue is that two people mapping the same reality independently will get similar results. I had a similar situation when I noticed trails data appear on google maps in areas I had mapped. On closer inspection, they were different. It took me a while to figure out where the data came from, and eventually concluded is was from a MassGIS trails layer (which is more complete in some places than OSM, but isn't particularly good quality).
pgpacf3gj6bPS.pgp
Description: PGP signature
_______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
