一种基于对象间关系判断的MFC程序GDI绘图优化方法

摘要

On the paper of One Optimizing Design Based On Custom Clipping Region Sets Of MFC Programs Drawing With GDI the author have presented a simple effective and practical optimizing design which can effectivly improve drawing performance of complex graphics in industrial field.But after further study,this paper found that the effect of which optimizing design may be degenerative and even noneffective under some extreme situation,because it use the region but not the rela-tionship to optimize graphic object's drawing.Based on this situation,this paper presents a new optimizing design based on object's relationship which can effectivly resolve this problem.%笔者曾经在文献[1]中提出了一种解决高分辨率及复杂画面下的GDI程序绘图优化的方法，该方法在实际的现场生产应用中被证明是行之有效的。经过笔者更深入地研究后，发现该方法在某些极端的场景下优化效果可能会退化甚至失效，其根本原因在于区域概念屏蔽了图形对象之间的影响关系，因而无法做到对重绘对象的有效控制。鉴于此，提出了一种基于对象间关系判断的MFC程序GDI绘图优化方法，可以有效解决上述问题。