How to figure out Heading with Compass

by droid_dev » Wed, 02 Jun 2010 07:24:44 GMT


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 Hi,

I am trying to write an app that uses the compass along with steps
travelled to approximate the path one takes
walking around.  I fugure that I can use the z value of
SENSOR_ORIENTATION or the z value returned by
SensorManager.getOrientation() which is more recommended by the API
doc.  Can someone explain why getOrientation() is prefered over
SENSOR_ORIENTATION?  They both seem to produce a magnetic north
reading, which I should be able to correct with the declination angle
getDeclination()  (android.hardware.GeomagneticField)

Thanks!


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