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Re:Open Location Code by hasperdi on Monday December 10, 2018 @06:08AM (#18646983)
Those sensors you are referring to are not reliable enough to tell elevation accurately. In addition to that, buildings may have different pressure to the outside
Re:Open Location Code by londons_explore on Monday December 10, 2018 @09:22AM (#18648067)
They are sufficient if you have other phones in the same vicinity at known locations.

If bobs phone is 10 meters higher than alex's phone, and they're in a 2 floor building, bob must be on the top floor and alex on the bottom.

This principle can be used at scale by people like apple and google.

Re:Open Location Code by kkarakk on Monday December 10, 2018 @07:39AM (#18647430)
i have successfully told the difference between the ground and 3rd floor with a galaxy note 3's barometric sensor(for triggering home routines only when actually at home vs just arriving at the location)

maybe that was just a particularly good sensor...