计算机图形学,利用DDA算法,中点画线算法,实现直线的绘制-computer graphics, the use of DDA algorithm, which dotted line algorithm, achieving a linear mapping

用DDA算法生成任意斜率的直线 用中点算法生成直线段，线型采用点画线型-Using DDA algorithm to generate arbitrary slope of the straight line Production line segment with the midpoint algorithm, linear by linear point