I'm trying to use the rotation matrix to translate the accelerometer
values from the device coordinates to the world coordinates. It's not
clear how to do this. Theoretically, I should be able to do something
like this:
double[][] accelArray = {
{xaccel},
{yaccel},
{zaccel}
};
Matrix accelDevice = new Matrix(accelArray);
Matrix accelWorld = rotationMatrix.times(accelDevice);
That code works for a third-party matrix library, but I can't figure
out how to do it with any of the SensorManager methods or the Android
Matrix classes. Any help would be appreciated.
Jeff
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