三次非均匀B样条曲线反求:给定数据点列,反求控制点,节点向量,按照给定精度,等分参数区间,离散B样条曲线,输出离散点列,模拟真实曲线.此算法包括德布尔-考格斯算法,节点向量算法,反求控制点,以及节点插入技术.对搞图形学的朋友比较有参考作用.(Three non uniform B spline curve in reverse: given data points, reverse control points, node vector, according to the given preci