Is it possible to place many instances of a cell to a text list of x,y coordinates?

Comments

• bunday

  October 2013 edited November -1

  anyone?
• Matthias

  October 2013 edited October 2013

  Hi bunday,

  There is not built-in feature for that, but
  this problem can be solved through scripting. There is some sample code provide at http://www.klayout.de/doc/programming/database_api.html. Here is some slightly modified version of that:

  # create a new view (mode 1) with an empty layout
  main_window =  RBA::Application::instance.main_window
  layout = main_window.create_layout(1).layout
  layout_view = main_window.current_view
  
  # set the database unit (shown as an example, the default is 0.001)
  layout.dbu = 0.001
  
  # add a cell (in this case "TOP")
  cell_index = layout.add_cell("TOP")
  cell = layout.cell(cell_index)
  
  # create a layer (in this sample layer 10, datatype 0)
  layer_index = layout.insert_layer(RBA::LayerInfo::new(10, 0))
  
  # add shapes now
  # TODO: read the text file and create one shape on each location read
  # (in this sample a single box with lower left corner being a 0,0 and
  # width of 1um and height of 2um is created)
  cell.shapes(layer_index).insert(RBA::Box::new(0, 0, 1000, 2000))
  
  # select the top cell in the view, set up the view's layer list and
  # fit the viewport to the extensions of our layout
  layout_view.select_cell(cell_index, 0)
  layout_view.add_missing_layers
  layout_view.zoom_fit
  

  Maybe you can give some details I can modify the sample accordingly.

  Matthias
• jerry3k

  October 2013 edited October 2013

  SORRY BUT THIS EXTRACTS THE COORDINATES OF EACH CELL!!!
  
  I am new and was struggling to look for the solution, here is one that can help:
  
  Make sure you have an object in cell on a specific layer. Just select the layer of that object, then..
  Tools>VErification>Shapes to Marker>Flat
  IN the new window it should select all by default (if it doesnt select all then it might just select 1000 so tweak this in 'configure' option at bottom)
  Then on the top right you will see File>Save as>
  Save it and you should have a file (.lyrdb) with a lot of stuff including the coordinates positions..(open with notepad or any text editor)
  Maybe then you just have to use Matlab or C or some programing langauage to extract these from the text file.
  DONE...but the hard way...
  Hope it helps. Let me know if you come up with a script ;)
• bunday

  October 2013 edited November -1

  Thank you Matthias; What I want to do is, into a fresh layout, place a cell for each line in a textfile named "dotcoordxy.txt". This textfile is placed in the root of some known folder (for simplicity, say "C:\coords"). An example of this very simple textfile, in microns, for 12 sets of x,y coordinates, is at the end of this post. The real final goal is to allow for placing a cell (containing maybe a 0.015 micron square or circle, defined in the cell) at each of these coordinates, although with tens of thousands of them. None of them overlap, as these coordinates have already been generated elsewhere with design rules of dot size and minimum distance to neighbors.
  
  Thanks,
  --Bunday
  
  ***********text file example starts here, "dotcoordxy"**************
  
  0.000 0.000
  1.648 1.366
  2.288 0.392
  0.185 0.831
  1.787 1.331
  2.184 1.014
  0.825 1.084
  0.444 1.798
  2.403 0.184
  2.278 2.028
  0.147 2.278
  0.645 1.105
• Matthias

  October 2013 edited October 2013

  Hi,

  Ok, placing a CELL is something different. Here is the sample code (not tested). It assumes you already have created a cell called "SUBJECT" and it creates a new top cell called "TOP" with all these instances:

  # create a new view (mode 1) with an empty layout
  main_window =  RBA::Application::instance.main_window
  layout = main_window.current_view.active_cellview.layout
  
  # find "SUBJECT"
  subject = layout.cell_by_name("SUBJECT")
  
  # add a cell (in this case "TOP")
  cell_index = layout.add_cell("TOP")
  cell = layout.cell(cell_index)
  
  # read lines and create instances
  File.open("coordinates.txt", "r") do |file|
    file.each_line do |line|
      xy = line.split(/\s+/)
      if xy.size >= 2
        x = (0.5 + xy[0].to_f / layout.dbu).to_i
        y = (0.5 + xy[1].to_f / layout.dbu).to_i
        cell.insert(RBA::CellInstArray::new(subject, RBA::Trans::new(RBA::Point::new(x, y))))
      end
    end
  end
  

  Matthias
• bunday

  October 2013 edited November -1

  Thanks Matthias, I've put it in the macro interface and tried to run, seems to be on the brink of working, but gives the error: "undefined method 'CellInstArray' for RBA:Module", likely something wrong with line 19. If I backtrace, I get:
  
  NoMethodError: undefined method `CellInstArray' for RBA:Module
  C:/Users/bundayb/KLayout/macros/macrotest12new.rb:19:in `block (2 levels) in <main>'
  C:/Users/bundayb/KLayout/macros/macrotest12new.rb:14:in `each_line'
  C:/Users/bundayb/KLayout/macros/macrotest12new.rb:14:in `block in <main>'
  C:/Users/bundayb/KLayout/macros/macrotest12new.rb:13:in `open'
  C:/Users/bundayb/KLayout/macros/macrotest12new.rb:13:in `<main>
  
  Any idea what is wrong? Gotta say I'm not a programmer, I'm a microscopist, so I'm probalby missing something trivial in the syntax...
• Matthias

  October 2013 edited November -1

  Sorry, there was a typo. It should say RBA::CellInstArray::new. I edited the script above.

  As I said, it's not tested.

  Matthias