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Having trouble creating a group and flattening within it

LongTimeNovice

Hi, everyone.

I want to select some mosaics in a layout  (manually before running the script), and then run the script which will create a group in the layout, pull the selected mosaics into that group, and flatten the mosaics in the group.  This is my code:

let((cv group1 instList)
     cv=geGetWindowCellView()

     instList=selectedSet()

     group1=dbCreateFigGroup(cv "myGroup" t 0:0 "R0")

     foreach(inst instList

          dbAddFigToFigGroup(group1 inst)

           )

     figGroupId=dbGetFigGroupByName(cv "myGroup")

     figList = figGroupId~>figs

     foreach( fig figList

          dbFlattenInst( fig 1)

           )
     )

I've found that it will create the group if I remove the flatten command, and it will flatten everything if I remove the AddFigToFigGroup command, but it won't do both.  Does anybody see what I'm doing wrong?

Thanks.

Steven

  • Do you expect the resulting instances to be in the group after the flatten? They are not added back to the group so the group may be deleted if it is empty after all the flatten. As to it not flattening if the mosaics are in the group, I don't know what is happening there.
  • Thank you, theopaone! Yes, I was hoping to have them still be in the group after the mosaic was flattened. But you already answered my other related question about getting database IDs after you flatten a mosaic http://community.cadence.com/cadence_technology_forums/f/48/t/33858 , and that is good enough because now I can flatten it first and then add all its instances to a group afterward. Actually, I've decided to make a cell out of the instances instead of a group, and I've asked a question about that. Anyway, that's another topic. Thank you for supporting us amateurs!

  • Not sure if you still want to create a group. It is kinda crude scripting, but get the idea of what is being done.
    you need to add a line to delete the instances

    procedure(booyaa()
    let(    (group1 master trans
        (instList selectedSet())
        (cv geGetWindowCellView()))

         group1 = dbCreateFigGroup(cv "myGroup" t 0:0 "R0")

         foreach(inst instList
        when(inst~>isShape || inst~>viaHeader
              dbAddFigToFigGroup(group1 inst))
               )

         foreach( fig instList
        when(fig~>isAnyInst
            trans    = fig~>transform
            master    = fig~>master
            
            foreach(shp append(master~>instances append(master~>shapes master~>vias))
                dbAddFigToFigGroup(group1 dbCopyFig(shp cv trans)))
            )
              )
    )
    )

  • I was going to make a similar suggestion - use a figGroup rather than a group (they are different things).

    Andrew.

  • Thank you, psill000! You really put together a well thought-out solution for me! I appreciate it so much!
  • Thank you, Andrew! It's always nice when you weigh-in on these topics. We all trust your experience and knowledge so much. Thanks again!

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