Missing w of Quaterion in Sensor Fusion
I'd like to rotate and move a cube in WebGL according to the motion of a MetaMotionC (1.3.7). I'm using NodeJS SDK on Linux. I stream the data to a chrome using client/server socket.io
I'm mixing this Android tutorial with it's magic formula with the Python code of @schuster in his SensorFusion question:
Here is my NodeJS code:
1) As you can see, the pt.w is undefined, I don't understand why ? Where am I wrong ?
2) The quaternion should provide the angle of the cube but how should I move it in 3D space ? Should I use the Linear Acceleration ? Any sample code ?
3) According to the documentation there is a calibration is it a mandatory ?
Many Thanks !