Me personally? No, just going off past magnetic navigation experience.
 Mountains, metal deposits throw compasses off too.




On Thu, Apr 21, 2011 at 7:10 AM, String <[email protected]>wrote:

> Did you look at the documentation, by any chance? From
> http://developer.android.com/reference/android/hardware/GeomagneticField.html
> :
>
> This class is used to estimated estimate magnetic field at a given point on
> Earth, and in particular, to compute the magnetic declination from true
> north.
>
>  If it's going to do declination, it kinda needs your location.
>
> String
>
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