(self, frame)
return root_rot
Get the root rotation from a frame.

    Args:
      frame: Frame from which the root rotation is to be extracted.

    Returns:
      Root rotation (quaternion) from the given frame.
Get the root rotation from a frame.
Get the root rotation from a frame .
def get_frame_root_rot(self, frame):
    """Get the root rotation from a frame.

    Args:
      frame: Frame from which the root rotation is to be extracted.

    Returns:
      Root rotation (quaternion) from the given frame.

    """
    root_rot = frame[self.POS_SIZE:(self.POS_SIZE + self.ROT_SIZE)].copy()
    return root_rot
def get_frame_root_rot ( self , frame ) : root_rot = frame [ self . POS_SIZE : ( self . POS_SIZE + self . ROT_SIZE ) ] . copy ( ) return root_rot