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how to cut an array of rectangles in a big rectangle if the the widths and lengths of small rectangle are defined as the variables?

YYLiao

Hi All,

I am a newbie to SKILL programming and need help on the following question that seems simple yet getting me stuck for a while. Any help will be appreciated!!

What I am trying to do is simple: I would like to cut several repeated rectangle holes in a rectangle. I define the widths and lengths of small rectangle and the gap between big rectangle and small rectangle as the variables.

However,  the gap between big rectangle and small rectangle are not symmetrical to both rectangular side.

  • Your question is far from clear, but maybe this little example I just threw together will give you some clues. If not, please ask a more precise question (some pictures might help explain the problem). This example creates a big rectangle and then chops a lot of holes in it on a regular grid, with the size and offset and spacing of the holes specified with variables.

    cv=geGetEditCellView()
    bigRect=dbCreateRect(cv "Metal2" list(0:0 10:20)) ; change the layer to suit your technology
    bBox=bigRect~>bBox
    leftGap=0.5
    rightGap=0.2
    bottomGap=0.3
    topGap=0.2
    holeWidth=0.2
    holeHeight=0.4
    spacingX=0.1
    spacingY=0.2
    currentX=xCoord(lowerLeft(bBox))+leftGap
    ;------------------------------------------------------------------------
    ; Loop over the big rectangle chopping out holes
    ;------------------------------------------------------------------------
    while(currentX+holeWidth+rightGap < xCoord(upperRight(bBox))
      currentY=yCoord(lowerLeft(bBox))+bottomGap
      while(currentY+holeHeight+topGap < yCoord(upperRight(bBox))
        ;--------------------------------------------------------------------
        ; I am assuming the chop only returns a single shape here
        ;--------------------------------------------------------------------
        bigRect=car(leChopShape(
          bigRect
          list(currentX:currentY currentX+holeWidth:currentY
            currentX+holeWidth:currentY+holeHeight currentX:currentY+holeHeight
          )
          t ; closed
          t ; remove chop shape
        ))
        currentY=currentY+holeHeight+spacingY
      )
      currentX=currentX+holeWidth+spacingX
    )

     

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