Fills the polygonal area on the screen 填充屏幕上的多边形区域。
2.
This paper discusses the method of using rulers and compasses to average the polygonal areas by treating the dot on the bounder of a polygonal area as a beeline 摘要讨论尺规方法均分多边形面积，给出过多边形边界上一点作一直线将多边形面积二等分的作法。
