这是计算机图形学中直线的生成，用DDA，中点画线法和bresenham三种算法实现的-This is the generation of computer graphics in line with DDA, the stipple line method and bresenham three kinds of algorithm implementation

用3Dmaxscr ipt写的脚本语言，实现在3dmax下对直线的操作变化。-Written by 3Dmaxscr ipt scr ipting language, implemented in a straight line under the operation of 3dmax change.