[Tagging] Elevation and height on vertical features

Tom Pfeifer t.pfeifer at computer.org
Fri Jan 8 18:32:44 UTC 2016


Colin Smale wrote on 2016/01/08 17:47:
> How did all the elevation data get into OSM in the first place?
 > GPS is notoriously bad at determining elevation/altitude.

Beside intentionally tagged elevation such as peaks, I found a lot
of nodes in the data, that appear to come directly from
GPX trackpoints/waypoints. They sometimes have an incredible
number of digits for resolution such as 395.38509818



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