怎么flatten一个GDS所有层次

# Before:
# topcell -> a -> b -> c -> d
# topcell -> b -> c -> d
# topcell -> c -> d # After:
# topcell

下面的code保存为flatten.txt. 执行calibredrv flatten.txt

set lay [layout create "abcd.gds" -dt_expand 
-preservePaths -preserveTextAttributes]
set topcell [$lay topcell]
$lay flatten cell $topcell
$lay gdsout out.gds

有道词典

set lay [layout ...

详细X

　　设置(布局创建“abcd。gds”-dt_expand 　　-preservePaths -preserveTextAttributes] 　　设置topcell[美元躺topcell] 　　躺平细胞topcell美元