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I thought someone compared the terrain with OSM and in certain locations it differs? Edit: They're apparently combining map data in some places.
by Shank 15y ago
I thought someone compared the terrain with OSM and in certain locations it differs?
Edit: They're apparently combining map data in some places.
- rmc 15y agoOSM doesn't have "terrain" (as in hill shading and mountain slopes), but it does have streets and roads. Apple and OSM match up in lots of places. Apple are not using OSM in USA (maybe canada, i dunno), but are definitly using it outside there.
- ZeroGravitas 15y agoOSM does have terrain, just not in the default map render (which includes most hand-editible data to aid contributers but is often assumed to be the single intended end product). For elevation they re-use SRTM data (and other sources) to create maps with shaded slopes or contours: http://wiki.openstreetmap.org/wiki/SRTM http://wiki.openstreetmap.org/wiki/SRTM http://wiki.openstreetmap.org/wiki/Shaded_relief_maps_using_mapnik http://wiki.openstreetmap.org/wiki/Shaded_relief_maps_using_... http://wiki.openstreetmap.org/wiki/Contours http://wiki.openstreetmap.org/wiki/Contours
- simonecortesi 15y agoApple data is about one year old, this is the reason behind the spotted differences.
- rmc 15y ago2 years old actually. Dated to about first week of April 2010 (based on "this road added on $DATE1 is there and the road added on $DATE2 isn't"). They are also using non-OSM data for the USA