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。
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.
这种算法以多边形顶点法矢最简化准则为基本依据，能在保证地形视觉效果的前提下，对模型进行大幅度简化。
This algorithm considers the polygon vertex normal predigesting rule as a basic gist. On the precondition of assuring terrain effect, it can predigest models in large extent.
本文利用第二类尖劈并矢格林函数对任意夹角的V形缝隙天线进行了矩量法计算。
The V-slot antennas with arbitrary included angles are analyzed by moment method and by using dyadic Green's function of wedges of second kind.
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