Modern versions of Google Maps display a cone of various widths for the compass, depending on how accurate/in need of calibration the compass is.
Given that the compass is simply a magnetometer and could be detecting either real magnetic fields external to the phone or calibration errors/magnetic fields coming from inside the phone, how does Google Maps know how accurate/well-calibrated the compass is at any given instant?
Asked by dsimcha
(231 rep)
May 24, 2019, 01:47 AM