为解决上述问题，本文提出采用软件设活动点法对非线性曲线分段线性化，点的数量及点的间距任意设置。
This paper proposed that a software adopting active points are utilized which piecewise linearizes the nonlinear curves, with the quantities and the intervals of the points to be set arbitrarily.
任意闭合曲线上的点与该点法线到某定点距离的乘积，其代数和为零。
The algebraic sum of the product of any point on a closed curve and the distance from this point's normal line to a fix point is zero.
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