run_verification.py

import pya
from pya import *
import SiEPIC
from SiEPIC.verification import layout_check
from SiEPIC.scripts import zoom_out
from SiEPIC.utils import get_technology_by_name
import siepic_ebeam_pdk
import os
import sys
"""
Script to load .gds file passed in through commmand line and run verification using layout_check().
Ouput lyrdb file is saved to path specified by 'file_lyrdb' variable in the script.

Jasmina Brar 12/08/23, and Lukas Chrostowski

"""

cell_Width = 1000e3
cell_Height = 500e3
cell_FaML_width_extra = 100e3


# gds file to run verification on
gds_file = sys.argv[1]


try:
   # load into layout
   layout = pya.Layout()
   layout.read(gds_file)
except:
   print('Error loading layout')
   num_errors = 1

try:
   # get top cell from layout
   if len(layout.top_cells()) != 1:
      print('Error: layout does not have 1 top cell. It has %s.' % len(layout.top_cells()))
      num_errors += 1

   top_cell = layout.top_cell()

   # set layout technology because the technology seems to be empty, and we cannot load the technology using TECHNOLOGY = get_technology() because this isn't GUI mode
   # refer to line 103 in layout_check()
   # tech = layout.technology()
   # print("Tech:", tech.name)
   layout.TECHNOLOGY = get_technology_by_name('EBeam')

   # run verification
   zoom_out(top_cell)

   # get file path, filename, path for output lyrdb file
   path = os.path.dirname(os.path.realpath(__file__))
   filename = gds_file.split(".")[0]
   file_lyrdb = os.path.join(path,filename+'.lyrdb')

   # run verification
   num_errors = layout_check(cell = top_cell, verbose=False, GUI=True, file_rdb=file_lyrdb)

   # Make sure layout extent fits within the allocated area.
   if 'faml' in filename.lower():
      cell_Width_check = cell_Width + cell_FaML_width_extra
   else:
      cell_Width_check = cell_Width
   bbox = top_cell.bbox()
   if bbox.width() > cell_Width_check or bbox.height() > cell_Height:
      print('Error: Cell bounding box / extent (%s, %s) is larger than the maximum size of %s X %s microns' % (bbox.width()/1000, bbox.height()/1000, cell_Width_check/1000, cell_Height/1000) )
      num_errors += 1
except:
   print('Unknown error occurred')
   num_errors = 1

# Print the result value to standard output
print(num_errors)