曲面求交线 提取点,点的坐标能显示出来-Extracting surface intersection point, point coordinates can be displayed

计算机图形学中数十种图形学算法实现，全部实现并可运行。比如DDA、区域裁减、区域填充、多边形求交-Computer graphics, dozens of graphics algorithms, to achieve full and running. Such as DDA, polygon intersection, etc.