id | = | Variable statement id |
imrk | = | Marker id whose velocity is requested |
comp | = | Velocity component requested 0 = magnitude of the velocity 1 = magnitude of the velocity 2 = Longitudinal velocity along X axis of rmrk 3 = Longitudinal velocity along Y axis of rmrk 4 = Longitudinal velocity along Z axis of rmrk |
rmrk | = | (Optional) Reference marker in whose coordinate system the output is given (default = 0) |