下拉菜单Shape -> Select Shape or Void/Cavity
点奇异点的边界，看到width为零的Line Segment 在Boundary层
Ctrl+F5打开Color dialog对话框允许所有boundar Cavity显示
下拉菜单EDIT -> DELETE ->Find选择All on
删除这个 Boundary Segment
OK.
Allegro Update to Smooth出现 1 dynamic shape is still out of date or empty.Run out of date shape report from status dialog to identify them.对话框问题
原文：http://www.cnblogs.com/lion382/p/4030574.html
