以曲率极大点作为初始拟合点。
The vertices with maximal curvature are as the initial fitting vertices.
水准联测点分布不合理,使某些拟合点的外推距离太大,导致外推点的精度太差。
The unreasonably distributed GPS leveling points make some GPS points have too big extrapolated distance, which causes the extrapolated points have too low accuracy.
其次,在曲面片内部,曲面拟合点和边界方向导数可以从参考曲线中通过构建虚拟等参线的方法得到。
Next, in the interior of the patches, surface fitting points and cross boundary derivatives are estimated from the reference curves by constructing virtual iso-parametric curves.
And we can just extrapolate in a straight line We before saw some examples where I had an algorithm to generate points, and we fit a curve to it, used the curve to predict future points and discovered it was nowhere close.
我们可以干脆用一条直线来描述它,我们之前看到在一些例子中,我用一个算法去生成一些点,然后用一条曲线对它进行拟合,然后用这条曲线来预测未来的点,最后却发现结果完全不对。
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