Question about the compass

Discussion in 'iPhone' started by kenbrinkman, Jun 19, 2009.

  1. kenbrinkman macrumors regular

    kenbrinkman

    Joined:
    May 20, 2009
    Location:
    Daytona Beach, FL
    #1
    Would the magnetometer display an accurate heading if the iPhone was not parallel to the ground? Say, if it's mounted on the dashboard of a car, perpendicular to the ground and direction of travel, would it still work?

    What do you guys think?
     
  2. Resist macrumors 68030

    Joined:
    Jan 15, 2008
    #2
    Would it work if the iPhone was upside down? Think about it for a minute.

    For it to work correctly it has to have a reference point, which is being parallel to the ground or horizontal, just like a real compass needs to be.
     
  3. dancavallaro macrumors regular

    Joined:
    Jul 13, 2008
    #3
    The compass in the 3GS works whether it's parallel or perpendicular to the ground. Orientation doesn't seem to matter.
     
  4. PNutts macrumors 601

    PNutts

    Joined:
    Jul 24, 2008
    Location:
    Pacific Northwest, US
    #4
    Magnetic compasses are influenced when inside a car. You should recalibrate in the car to get the best reading.
     

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