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How to modify or manipulate bBox in layout (Virtuoso, IC 5141 USR4)

Dennis Faber

Hello together,

I have a problem with bBox in a layout. In other words. It bothers me that the bBox is bigger then my layout.

I don't have any others invisibel layers there. no changedLayer or something. This sometimes happens when I add a layout as an instance in another layout. A solution with instance layer is not suitable for me. Is there any way to modify or reset the bounding box coordinates with SKILL? I am not familiar with SKILL!

 Kind regars, Dennis

Parents
  • dmay

    I hope this helps. We've refined this to do not just create a large rectangle and delete it, although I think that still works in most cases.

    Derek 

    procedure(myFixCellBBox(@optional (cv geGetEditCellView()) (quiet nil))
      let((bbox akey textDisplays)
        bbox = cv~>bBox
        ; lowerLeft
        akey = dbCreateRect(cv leGetEntryLayer() list(xCoord(lowerLeft(bbox))-5.0:
          yCoord(lowerLeft(bbox))-5.0 lowerLeft(bbox)))
        when(akey dbDeleteObject(akey) ) ; when
        ; upperRight
        akey = dbCreateRect(cv leGetEntryLayer() list(xCoord(upperRight(bbox))+5.0:
          yCoord(upperRight(bbox))+5.0 upperRight(bbox)))
        when(akey dbDeleteObject(akey) ) ; when
        ;Fix textDisplay bounding boxes
        textDisplays = setof(x cv~>shapes x~>objType=="textDisplay")
        foreach(td textDisplays
            schSetTextDisplayBBox(td nil) ;This also works in layout
        )
        dbComputeBBox(cv)
        akey = dbCreateRect(cv leGetEntryLayer() cv~>bBox)
        when(akey dbDeleteObject(akey) ) ; when
        unless(quiet
            printf("Now execute \"Fit All\" and see if your cell extents are fixed\n")
        )
        t
      ) ; let
    )

Reply
  • dmay

    I hope this helps. We've refined this to do not just create a large rectangle and delete it, although I think that still works in most cases.

    Derek 

    procedure(myFixCellBBox(@optional (cv geGetEditCellView()) (quiet nil))
      let((bbox akey textDisplays)
        bbox = cv~>bBox
        ; lowerLeft
        akey = dbCreateRect(cv leGetEntryLayer() list(xCoord(lowerLeft(bbox))-5.0:
          yCoord(lowerLeft(bbox))-5.0 lowerLeft(bbox)))
        when(akey dbDeleteObject(akey) ) ; when
        ; upperRight
        akey = dbCreateRect(cv leGetEntryLayer() list(xCoord(upperRight(bbox))+5.0:
          yCoord(upperRight(bbox))+5.0 upperRight(bbox)))
        when(akey dbDeleteObject(akey) ) ; when
        ;Fix textDisplay bounding boxes
        textDisplays = setof(x cv~>shapes x~>objType=="textDisplay")
        foreach(td textDisplays
            schSetTextDisplayBBox(td nil) ;This also works in layout
        )
        dbComputeBBox(cv)
        akey = dbCreateRect(cv leGetEntryLayer() cv~>bBox)
        when(akey dbDeleteObject(akey) ) ; when
        unless(quiet
            printf("Now execute \"Fit All\" and see if your cell extents are fixed\n")
        )
        t
      ) ; let
    )

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