离散数据的C1连续样条拟合源代码，不好找的代码。-discrete data C1-spline source code, not easy to find the code.

Nurbs曲面代码，用于插补，样条拟合领域-Nurbs surface code for the interpolation, spline fitting area

圆柱曲面拟合代码，主要用于对空间点云进行圆柱拟合，主要用于建模-Cylindrical surface fitting code, it is mainly used for cylinder fitting was carried out on the spatial point cloud, it is mainly used for modeling