Hmmmm - I've just tried reading the acceleration and rotation sensors. I
admit to finding the whole business confusing, but it seems to me that the
data accompanying the accelerationChanged message represents the static
orientation of the device.
At first I thought that the "rotation" and "acceleration" had been swapped -
but then I realised it wasn't "rotation" but "rotation rate".
At any rate, the readings I'm getting for acceleration, with my phone lying
flat on the desk, have x and y approximately 0, and z at -1. If I bring the
phone upright on its short end, y shifts to -1 and z to 0. If instead I bring
it upright to lie on its left edge, x goes to -1 and y and z to 0; if I bring
it upright on the right edge, x goes to 1, y and z to 0.
These seem perfectly reasonable things to me, i.e. they seem to represent the
state of rotation around the various axes; but I don't understand how they
relate to acceleration.
Can someone explain this to me?
Many thanks,
Ben
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