parameters: (self, acceleration=0.0)
docstring: Continue rotation in direction of last drag.
docstring_summary: Continue rotation in direction of last drag.
docstring_tokens: Continue rotation in direction of last drag .
function: def next(self, acceleration=0.0):
          """Continue rotation in direction of last drag."""
          q = quaternion_slerp(self._qpre, self._qnow, 2.0+acceleration, False)
          self._qpre, self._qnow = self._qnow, q
function_tokens: def next ( self , acceleration = 0.0 ) : q = quaternion_slerp ( self . _qpre , self . _qnow , 2.0 + acceleration , False ) self . _qpre , self . _qnow = self . _qnow , q