Quaternions

[roman_suvorov]

Hello, can anyone tell me the exact meaning of the [x,y,z,w] components of a quaternion returned by a .getQuat() function? I am particularly interested in the range these values can take, especially w.

This might seem like a silly question, but are the two quats returned in this script in the exact same format (i.e., same ordering of components, scaled in the same way, etc.)?

...
inertiaCube = viz.add('intersense.dls') # Add inertiaCube
print inertiaCube.getQuat() # 1st quaternion
vicon = viz.add('vicon.dle', 0, ipAddressAndPort) # Add the Vicon system
firstBody = vicon.getBody(0) # Get the first body
print firstBody.getQuat() # 2nd quaternion
...