curvature normal vector 曲率法向量
In this paper, we first polygonize the scattered data points, then estimate the normal vector and curvature of each point using the local presentation of data points.
首先对获得的散乱数据点云进行多边形化，然后根据数据点局部表示对每点的法矢和曲率进行估算。
Numerical techniques related to the calculation of normal vector, tangential velocity, curvature and contact line are explained in detail.
文中介绍了有关泡面法向矢量、切向速度、曲率和接触线等的计算技术。
A unit vector normal to the plane of t and n, which is the plane of curvature.
所构成的平面的单位向量，该平面为曲率所在的面。
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