Bresenham算法生成直线，中点算法生成直线，DDA算法生成直线，中点画圆，Bresenham画圆，中点画椭圆，画多边形，多边形填充,the detail information is above

基于图形算法的图形,包括Bresenham算法和中点算法画圆以及用它们画直线-Graphic based on graphics algorithms, including the Bresenham algorithm and midpoint algorithms draw a circle and using them to draw a straight line

计算机图形学利用Bresenham中点算法和八分法画圆-Computer graphics using the the Bresenham midpoint algorithm and eighth law Circle