计算机图形学，用VC++ MFC实现，可实现用DDA、中点、bresenham算法画直线，用中点、正负、bresenhan算法画圆以及画多边形，还可实现图形填充、图形平移、旋转、放大缩小等图形变换功能。-Computer graphics, VC++ MFC achieve, can be realized DDA, the midpoint, bresenham algorithms draw a straight line, with a midpoint, positive and neg