If I understand correctly, the magnetic field detectors in the phone return a 3-d answer (an xyz vector towards the north magnetic pole). The phone's built-in software takes that information, and combines it with the information provided by the accelerometers in order to return the correct answer to the sensor interface. It even takes the orientation of the phone (portrait vs landscape) into account.
I also believe there's a way to access the raw xyz magnetic information. Sorry for the hand-waving here; it's been a couple months since I played with that interface. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
