模拟拟合bezier曲面的程序，在预订bezier曲面上随机取数据点，进行拟合。-Simulation bezier surface fitting procedure, in the book from Random bezier surface data points for fitting.

二次趋势面拟合，根据拉伊达准则粗差判断准则进行数据的标定和剔除。-The two trend surface fitting, according to the Rajda criterion（3σ） gross error criterion for data calibration and elimination.