To do this, the monotone curve is firstly drawn, and then without finding the coordinate of the inflexion point, the NC machining path can be obtained by the method of automatic direction control.
首先对单调NC轨迹曲线进行绘制，进一步用不求极值点坐标而实现自动控制变向的方法，求出NC加工轨迹；
2
By properly setting the coordinate axis, the discrete data of a symmetric coupler curve are made to satisfy the conjugate symmetry.
通过合理地选择坐标轴，使对称连杆曲线的离散数据满足共轭对称性。
3
The thesis presents the system parameter configuration, the dynamic curve and the coordinate orientation of metal position.