Introduction - If you have any usage issues, please Google them yourself
Center Circle on the algorithm, by calculating the x = 0 to y = 0 1/4 of the scope of an oval, and then adopted the principle of symmetry other 3/4 point information. (R2 that elliptical plant axis radius)
Packet : 15883844zhongdian.rar filelist
椭圆的中点生成算法.txt