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How to open each GDSII file and do something?

jiunnweiyehjiunnweiyeh
in Ruby Scripting

Hi Sir,
I have many GDSII file in folder D:\bumping.
as below , I want to check all the top_cells (that is mix 2 type of GDS , single top cell and multi top cell)
and do something check in each single GDSII file.
but look like I can't do that as below picture shown what the error message , do you have other idea for that?

main_window = RBA::Application::instance.main_window

filepath="D:\\bumping\\"
file_list =Array.new()
dir=Dir.open(filepath)
while name=dir.read
if name.downcase.match(".gds")  then
file_list << name
end
end
dir.close
layout = RBA::CellView::active.layout
run_process=1
file_list.sort.each do |current_gds_file_name|
cellview = main_window.create_layout(run_process.to_s, 1)
puts "It is reading ..... #{filepath}#{current_gds_file_name}"
cellview.read("#{filepath}#{current_gds_file_name}")
currentlayout = RBA::CellView::active.layout
topcells=currentlayout.top_cells
topnames =Array.new()
topcells.each do |xx|
topnames << xx.name
end
puts "****************************"
puts "it is GDSII filename : #{current_gds_file_name}"
puts "it is top cells : #{topnames}"
run_process+=1
end

#####################

Comments

  • RawrRangerRawrRanger

    Hi jiunnweiyeh

    CellView object cannot load files directly, use LayoutView load_layout() function instead.

    ** LayoutView can be created without the existance of mainwindow

    example as below:

    filePath     = "D:\\bumping\\"
fileNameList = Dir.entries(filePath).map {|fname| fname.downcase[-3..-1] == "gds" ? fname : nil }.compact

fileNameList.sort.each do |fileName|
    layoutView = RBA::LayoutView::new()
    cellView   = layoutView.cellview(layoutView.load_layout("#{filePath}#{fileName}"))
    topNames   = cellView.layout.top_cells.map {|cell| cell.name}
    puts "File Name : #{fileName}; Top Cells : #{topNames}"
end
  • sekigawasekigawa
    edited December 2023

    Hi @jiunnweiyeh,

    Here is another example of making the most of your original code.
    With the main window, all layouts will show up.
    If that is not required, RawrRanger's example is more lightweight and elegant, I think.

    # https://www.klayout.de/forum/discussion/2431/

# [1] Collect the GDS2 files from the KLayout source.
#     As of version 0.28.13,
#       there are 48 *.gds files
#       there are  2 *.gds.gz files
filepath = ENV['HOME'] + "/GitWork/klayout/testdata/gds/"
file_list = Array.new()
dir=Dir.open(filepath)
while name=dir.read
  if name.downcase.match(".gds") then
    file_list << name
  end
end
dir.close

# [2] Examine the top cell(s) of each GDS2 file.
#     Each layout will show up in the main window.
main_window = RBA::Application::instance.main_window

run_process = 1
file_list.sort.each do |current_gds_file_name|
  gds = "#{filepath}#{current_gds_file_name}"
  puts "It is reading ..... #{gds}"
  cellview = main_window.load_layout(gds, 1)
  layout = cellview.layout
  topcells = layout.top_cells
  topnames = Array.new()
  topcells.each do |xx|
    topnames << xx.name
  end

  puts "****************************"
  puts "it is GDSII filename : #{current_gds_file_name}"
  puts "it is top cells : #{topnames}"
  run_process += 1
end
puts ""
puts "Processed #{run_process} files"

    Outputs

    Running macro /home/sekigawa/.klayout/macros/Forom2431.rb
It is reading ..... /home/sekigawa/GitWork/klayout/testdata/gds/alm.gds
****************************
it is GDSII filename : alm.gds
it is top cells : ["TOP"]
It is reading ..... /home/sekigawa/GitWork/klayout/testdata/gds/alm_au.gds
: 
: 
: 
it is GDSII filename : t200.gds
it is top cells : ["TOP"]
It is reading ..... /home/sekigawa/GitWork/klayout/testdata/gds/t9.gds
****************************
it is GDSII filename : t9.gds
it is top cells : ["RINGO"]

Processed 50 files

  • jiunnweiyehjiunnweiyeh

    Hi All,
    Thanks very much for your help , I will try that code.

  • jiunnweiyehjiunnweiyeh

    Hi All,
    Can I close the GDSII file after opened ?
    such as code below , (but it is not workable...)

    file_list.sort.each do |current_gds_file_name|
  gds = "#{filepath}#{current_gds_file_name}"
  puts "It is reading ..... #{gds}"
  cellview = main_window.load_layout(gds, 1)
  layout = cellview.layout
  topcells = layout.top_cells
  topnames = Array.new()
  topcells.each do |xx|
  topnames << xx.name
  end

  puts "****************************"
  puts "it is GDSII filename : #{current_gds_file_name}"
  puts "it is top cells : #{topnames}"
  run_process += 1
  cellview.close   ####I want to close the GDSII file .
end
  • sekigawasekigawa

    Hi,

    How about this?

    main_window = RBA::Application::instance.main_window

close_one_by_one = true ### set "false" to finally close everything in one shot

run_process = 1
file_list.sort.each do |current_gds_file_name|
  gds = "#{filepath}#{current_gds_file_name}"
  puts "It is reading ..... #{gds}"
  cellview = main_window.load_layout(gds, 1)
  layout = cellview.layout
  topcells = layout.top_cells
  topnames = Array.new()
  topcells.each do |xx|
    topnames << xx.name
  end

  puts "****************************"
  puts "it is GDSII filename : #{current_gds_file_name}"
  puts "it is top cells : #{topnames}"
  run_process += 1
  if close_one_by_one then
    main_window.call_menu('cm_close')
  end
end

if not close_one_by_one then
  main_window.call_menu('cm_close_all')
end

puts ""
puts "Processed #{run_process} files"
  • jiunnweiyehjiunnweiyeh

    @sekigawa
    It is workable , Thanks. I will base on this code to building what mind.
    Thanks.

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