用de Casteljau绘制的Bezier曲线,可输入任意点的坐标。-de Casteljau use the Bezier curve drawing can be imported arbitrary point coordinates.

从直线的Cohen-Sutherland、中点分割和参数化裁剪算法中，任选一种，编程实现； 2.编程实现Bezier曲线分割递推de Casteljau算法。 3.任选一种曲面，并编程实现 -From the line of Cohen-Sutherland, the midpoint of segmentation and parametric clipping algorithm, Choose one, programming 2. Programming Recursive

运用de Casteljau递归求值法编写n次Bezier曲曲线计算程序，给定控制顶点-de Casteljau using recursive method for the preparation of n Bezier curve calculation procedures for determining control vertices