Search and Replace of instance in a boundary

Comments

• Matthias

  December 2021

  The query needs to use "inst" instead of "cell" for the coordinate check.

  Here is a sample for a test case of mine. Please also note I'm using "dbbox" which is like "bbox", but returns the micron-unit bounding box (instead of DBU):

  with instances of cell TOP.* where (inst.dbbox.left==0 && inst.dbbox.right==10.0 && cell.name == "A") do inst.cell_index = <<B>>
  

  You can run a query through the LayoutQuery class (see https://www.klayout.de/doc-qt5/code/class_LayoutQuery.html) in Python. However, I think it's easier and safer to directly code the query as a Python loop over the instances inside the cell.

  Matthias
• sheikh_nir

  December 2021

  Hi Matthias,
  Thank you so much. In the meantime, I figured out how to do it with python scripting -

  import pya
  layout = pya.Application.instance().main_window().current_view().active_cellview().layout()
  
  topcell=layout.cell("Main")
  dbu=layout.dbu
  change_from="SUB1"
  change_to="SUB2"
  
  left    =-60
  right   =-30
  bottom  =-25
  top     =30
  bb=pya.DBox(left,bottom,right,top)
  for i in topcell.each_overlapping_inst(bb):
    if i.cell.name==change_from:
      i.cell_index=layout.cell(change_to).cell_index()
  
• Matthias

  December 2021

  Very good

  BTW: the lengthy second line can be simplified to:

  layout = pya.CellView.active().layout()
  

  Regards,

  Matthias
• jiunnweiyeh

  January 2022

  @Matthias
  Could you please help to check how to do "replace" in Ruby?
  I knew that some explain in your document.
  Signature: Instance replace (const Instance instance, const CellInstArray cell_inst_array)

  But that code below is not workable...
  instance.replace(RBA::CellInstArray::new(placeme, RBA::Trans::new(RBA::Vector::new(0, 0))))
  here was my full code.

  main_window = RBA::Application::instance.main_window
  layout = RBA::CellView::active.layout
  layout_view = main_window.current_view
  out_cell = layout_view.active_cellview.cell
  layoutView = RBA::Application::instance.main_window.current_view.active_cellview.cell_name
  getcells=layout.each_cell
  ############################################
  shotcell="Shot"
  diecell="DIE"
  layers=["PI1","CapRD","PI2","UBM"]
  #####shot######
  layers.each do |layername|
  cellname="#{shotcell}_#{layername}"
    if !layout.has_cell?(cellname) then
    layout.create_cell(cellname)
    end
    viewed_cell = layout.cell(cellname)
    subcell_index = layout.cell(shotcell).cell_index()
    locationx=0
    locationy=0
    viewed_cell.insert(RBA::DCellInstArray::new(subcell_index, RBA::DTrans::new(locationx , locationy)))
    viewed_cell.each_inst do |instance|
            instance.flatten(1)
      end #each _ins
  
    placeme = layout.cell("DIE_CapRD").cell_index()    
     viewed_cell.each_inst do |instance|
          if instance.cell.name==diecell then
          instance.replace(RBA::CellInstArray::new(placeme, RBA::Trans::new(RBA::Vector::new(0, 0))))
          end
     end #each _ins
  end