实验要求：1、分别用圆的参数生成法和Bresenham算法画圆  2、请调用画圆和画椭圆的函数画出右图提示：openGL 里可通过glrotatef函数实现坐标系的旋转，如绕Z轴旋转45度（相当于XY平面内图形绕原点旋转45度）通过glrotatef（45,0,0,1）来实现。 -Experimental requirements: 1, respectively, the parameters used to generate a round and Bresenham algo

this project is draw 3 shapes. these are ellipse ,triangle ,circle. This project made 3.1. Versiyon OpenGL.

计算机图形学中基于MFC的OpenGL实现的圆弧中点扫描算法绘制圆形，半径可以自己设置，附有可执行文件。-Computer graphics based on the OpenGL MFC realization of the circular arc midpoint scanning algorithm to draw the circle, the radius can be their own settings, with the executable file.