平面区域填充算法是计算机图形学领域的一个很重要的算法，区域填充即给出一个区域的边界（也可以是没有边界，只是给出指定颜色），要求将边界范围内的所有象素单元都修改成指定的颜色（也可能是图案填充）。区域填充中最常用的是多边形填色，本文中我们就讨论几种多边形区域填充算法。-The planar area filling algorithm is a very important algorithms in the field of computer graphics, area fills, i.e. given a boundary of the area (which may be no boundary, but given the specified color), all pixel elements within the borders are modified to specify the color (or pattern fills). The most commonly used in the area fill, polygon fill, in this article, we discuss several polygon area fill algorithm.