用OpenGL实现中点Bresenham算法画直线与圆，改进Bresenham算法画直线-The midpoint of the Bresenham algorithm for drawing a straight line and circle, using OpenGL to improve the Bresenham algorithm draw a straight line

小时候最喜欢玩的一条龙游戏，一方用圈，一方用叉，哪一方先走成一条线就获胜，很想五子棋-Childhood favorite stop playing games, one with a circle, one with a fork, which side go first into a line on the win and would like backgammon

计算机图形学的程序,可以实现画直线,DDA直线以及中点圆,-Computer graphics program, you can draw a straight line, DDA straight and midpoint circle,