How can I export design point data from optiSLang .omdb file as .json file by script?

Georg Kandler

I need to export the design point data from an existing .omdb file as .json file. I know this can be done manually by selecting the designs in the design table (in optiSLang GUI or in optiSLang Postprocessing) -> Rightclick -> Export designs.

How can I do this by script?

Georg Kandler

You can do this by using the following script in optiSLang python (i.e. inside a python node in optiSLang, using osl_install_dir/optislang-python.cmd, or from within optiSLang postprocessing):

(tested in optiSLang 2023R1, should also work in optiSLang 2022R2)

import os
import json

# osl specific imports
import py_os_design
import py_omdb
import py_os_parameter
import stdcpp_python_export

# omdb file you want to export from
omdb_file = os.path.join('your_omdb_file.omdb')

# json file the design point data should be saved to
json_file = os.path.join('design_container.json')


# load the data
omdb = py_omdb.PyOMDB(omdb_file)
params = omdb.parameter_manager
designs = omdb.design_container

# create a DesignExporter object
design_exporter = py_os_design.DesignExporterJson()
# perform the export
design_exporter(designs, stdcpp_python_export.Path(json_file))


# the exported json will be without indentations
# to make it more readable, reload it and save it again with 
# indentations
with open(json_file,'r') as f:
   data = json.load(f)
with open(json_file,'w') as f:
   f.write(json.dumps(data,indent=2))