Michael Tansella <[email protected]> writes: >> So, the fact that when idle the accelerometers report a positive Z value >> implies that the Z axe is actually upward. >> >> Agree ? > > Yes I think that's right. If you hold the Freerunner that any arrow of an > axis > points to the earth middlepoint then the sown value must be > negative.
I beg to disagree. If you are talking about acceleration of the sensor itself then you'll see that: 1. it's not actually accelerating if you attach a reference frame to the Earth (the freerunner is laying still). 2. The gravitational force applied to the sensor is directed to the center of the Earth, so the reported "acceleration" should be positive too. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:[email protected] _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
