四个圆近似椭圆,l形的命令行输入,选择中心,输入半径半径长轴和短轴,近似椭圆自动完成。 Four circular ellipse approximation, ell command line input, center, input radius radius of long axis and short axis, the approximate ellipse done automatically. (2015-07-02, LISP, 1KB, 下载3次)