• 1. normal curve method: 常态曲线法
• 2. logarithmic normal curve method: 对数正态曲线法
• 3. Normal-equidistan-curve method: 法向等距线法

• 1.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。
  dict.yoduao.com
• 2.The existing algorithms include equivalent left and right curve Angle by definition, normal section line method and tangent projection etc.
  有关的算法有根据定义的左右曲面角相等，法截面法和切向投影等。
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• 3.Crowd excitation is simulated by random method according to normal footfall force curve and other individual factors such as distribution of crowd, step frequency and physiological characteristics.
  根据单步落足曲线，结合影响人群行走效应的因素如人群分布、行走频率及个体生理特征等，采用随机方法模拟人群行走激励。
  dict.yoduao.com

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