_CTRL_Obj_ 结构体 中TRAJ_Obj 定义了 3个变量 请讲一下作用
TRAJ_Handle trajHandle_Id; //!< the handle for the Id trajectory generator
TRAJ_Obj traj_Id; //!< the Id trajectory generator object
TRAJ_Handle trajHandle_spd; //!< the handle for the speed trajectory generator
TRAJ_Obj traj_spd; //!< the speed trajectory generator object
TRAJ_Handle trajHandle_spdMax; //!< the handle for the maximum speed trajectory generator
TRAJ_Obj traj_spdMax; //!< the maximum speed trajectory generator object
