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I'm new to SKILL programming and I want to write a program that delete certain layer from certain library. For example, i want to delete all the metal1 object in all the cell in "a" library. Can someone please help me? below is part of my program:
procedure( delLayer( libName ) count = 0 lib = ddGetObj( libName) foreach( cell lib~>cells if( setof( the_view cell~>views the_view~>name == "layout") then cv = dbOpenCellViewByType( libName cell~>name "layout") foreach(layer cv~>shapes~>layerName if( layer == "MET1" then **** need help in this area ***
I've tried dbDeleteObject() but i just can't seems to get it right count++ );if );foreach layer dbClose( cv) );foreach cell );if setof);procedure
There are more simple way to grab all the shapes with layer rather than using cv~>shapes. A better propose is using setof(x cv~>lpps x~>layerName == "METAL1"). This will save time and less steps needed instead of running on all shapes in the cell view.
I did some modication on your code. Please try it.
procedure( delLayer( libName ) count = 0 lib = ddGetObj( libName) foreach( cell lib~>cells if( setof( the_view cell~>views the_view~>name == "layout") then cv = dbOpenCellViewByType( libName cell~>name "layout") foreach( shape car(setof(x cv~>lpps x~>layerName == "MET1"))~>shapes
;;foreach(layer cv~>shapes~>layerName ;; if( layer == "MET1" then ;; **** need help in this area ***
;;I've tried dbDeleteObject() but i just can't seems to get it right ;; ;; count++ );if ;; );foreach layer dbClose( cv) );foreach cell );if setof);procedure
BTW, there is a lot of space to improve in your script such as in checking for layout view. You can check whether the cell view is layout or not by checking its cell view type (eg: cv~>cellViewType == "maskLayout")
In reply to kbhow:
Thanks alot for your help. Really appreciate it very much.
Nice suggestion, using lpps will generally be more efficient since there are typically many more shapes in a cellview than there will be layer-purpose pairs, so this method could be one or two orders of magnitude fewer items to iterate over.
The code could be improved even further by adding local variables:
procedure( delLayer( libName )
let( ((count 0) lib cv)
;; count = 0 ;; no longer needed, initialised in let statement
lib = ddGetObj( libName)
foreach( cell lib~>cells
when( setof( the_view cell~>views the_view~>name == "layout")
cv = dbOpenCellViewByType( libName cell~>name "layout")
foreach( shape car(setof(x cv~>lpps x~>layerName == "MET1"))~>shapes
); foreach shape
dbClose( cv )
count ;; return the number removed
Also I swapped the closing parentheses comments for the if (changed to when in my example) and foreach statements as they were in the wrong order. Hope this helps!
In reply to skillUser:
Thanks to How and Lawrence! Your advise are really very helpful. Thank you again.