窗口多边形 meaning in English

window polygon

Second , after limitations of present algorithms are analyzed , two improved clipping algorithms of polygon against rectangle window and line against polygon window are presented
其次在分析现有算法不足的基础上提出了矩形窗口多边形裁剪和一般多边形窗口线裁剪的改进算法。
By constructing the list of vertices of polygon and intersecting points between polygon and rectangle , the list of vertices of rectangle and between polygon and rectangle , the list of incoming points and the list of outcoming points , the problem that how to confirm close clipped area edge is solved . at the same time , the second encoding technology is developed from line clipping to polygon clipping so that the speed of algorithm is increased
矩形窗口多边形裁剪的改进算法通过引入多交表、矩交表、入点表、出点表等线性链表，解决了如何确定一般多边形在矩形窗口裁剪后封闭区域边界问题，并把二次编码技术由线裁剪拓展到多边形裁剪中，对处于窗外的多边形的边可直接处理，提高了算法的效率。