曲线光滑 line smoothing 通过曲线内插程序计算加密点，连接各相邻点而获得光滑曲线的方法。
结论L MS法简单易实现，拟合的百分位数曲线光滑，拟合误差小。
CONCLUSION LMS is a simple method. Curves fitted by it are much smoother and the fitting errors are much fewer.
用累加弦长参数三次样条拟合不规则曲线，使拟合后的曲线光滑圆顺。
This paper describes the method that the irregular curve is fitted with accumulated chord length parametric cubic spline.
本文讨论的三角形内插线曲线光滑函数属于插值样条型的曲线光滑方法。
Smoothing curve method of plugging line inside triangle in the article is one of the plugging dots spline curve methods.
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