This paper presented the solution of normal vector by using the method of the accumulative hypotenuse trispline curve.
采用累加弦长三次样条参数曲线，先求出离散点处两个方向的切矢，进而求解出该离散点的法矢。
This paper presented the solution of normal vector by using the method of the accumulative hypotenuse trispline curve.
采用累加弦长三次样条参数曲线，先求出离散点处两个方向的切矢，进而求解出该离散点的法矢。
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