反算NURBS曲线插值控制点并计算NURBS插值曲线

说明： 对于给定的数个离散数据点，使用3次NURBS（非均匀有理B样条曲线）进行插值拟合。该算法程序能够反算出NURBS曲线控制点并绘制经过给定离散点的插值曲线。 (For a given number of discrete data points, the 3 NURBS (nonuniform rational B spline curve) is used for interpolation fitting. The algorithm can calculate the control point of NURBS curve and draw the interpolation curve of the given discrete point.)