鹅颈挂车的拐弯轨迹模拟，将鹅颈挂车抽象为杆状结构，通过捕捉关键点的轨迹，从而描绘车的行驶过程中覆盖的区域。-Gooseneck trailer turning trajectory simulations, the gooseneck trailer abstract rod structure, the locus of points by capturing the key, which depicts the process of moving the car area covered.