隔点连线法与任意多边形窗口遮盖技术

作为二维图形窗口遮盖技术的重要扩展,论述了任意封闭多边形特别是凹多边形窗口遮盖技术问题．在对特殊交点性质科学分析的基础上,提出了用隔点连线法处理特殊点的算法,从而有效地解决了任意多边形窗口遮盖技术的一个难点,完善了二维图形消隐作图的功能．

The Line Linked by Two Neighbouring Points and the Window Cover Technique for Arbitrary Polygon

As the important extension of the window c0ver technique of 2D drawing, this artic1e ex-pounds the problem about the window cover technique f0r arbitrary polygon closed, particularly forconcave p0lygon, On the basis of scientific c1assification of peculiar intersection pointS, puts forwardthe algorithm 0f handle peculiar intersection points with the line linked by two neighbouring points,resolved efficiently a difficult problem in the window cover technique f0r arbitrary po1ygon, perfectedthe functi0n of limitation of 2D drawing.