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How to delete Via in layout?

hasley17

I draw  my layout. When I use the function deleteAllObjectsInLayout( cvid ) to delete the layout, all instances and metals are deleted except the Vias I created.

the function is defined below, How should I modify my code  for deleting Vias? Thank you!

procedure(deleteAllObjectsInLayout( cvid )

  let((propName inst)
     dbDeleteAllNet( cvid )


     foreach( inst cvid~>instances
    dbDeleteObject( inst ))


    foreach( inst getSGq( cvid shapes )
   dbDeleteObject( inst ))


t);end let
);end procedure

  • You'd need:

    foreach(via cvid~>vias dbDeleteObject(via))

    By the way, if you're using the C-style I wouldn't use the getSGq function - it's completely equivalent to the ~> operator. So the shapes line would be more cleanly written as:

    foreach(shape cvid~>shapes dbDeleteObject(shape))

    (I wouldn't have called the loop variable  inst  either when iterating over shapes, as it's confusing).

    Given that the above code won't delete blockages, markers and various other objects - if your goal is to completely erase everything in the cellView the simplest way is just to do:

    dbReopen(cvid "w")

    which will erase everything in one go.

    Regards,

    Andrew.

  • in reply to Andrew Beckett

    thank you for your suggestions. It works!

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