Equation about isometric polygoncurve is set up with differential geometry theory. The curve is proved to be convex curve which the distance between any parallel tangent lines is equal.
应用微分几何理论，导出了等距曲线的方程，证明了它是具有任意两条平行切线之间距离都相等的卵形线。
2
When fitting each contour line, the points measured by non - contact measuring system are as the top points about control polygon for forming EE spline curve.
在拟合每个轮廓线时，先用非接触测量系统测出的数据反算出ee样条曲线控制多边形的顶点。
3
In the paper a method of any characteristic polygon controlling-based generation method of higher random curve is presented.