This thesis also puts forward an improved DDA arc interpolation algorithm, which decreases the radial deviation of the traditional algorithm without losing the original advantages.

• 在插补运算部分中，系统提出了改进的DDA圆弧插补算法。 改进的DDA圆弧插补算法继承了传统DDA圆弧插补算法不含超越函数的优点，减少了传统DDA圆弧插补算法的径向误差，实现了内外均差弦线插补。