How to create cutout from polygon without loading HFSS 3D Layout project

[amichel0205]

Creating a cutout on large board can be time consuming and user may want to not have HFSS 3D Layout project loaded. Here we will show how to directly create a cutout, using a polygon from aedb file.
The script below will be driven by a toml file named cutoutsetup.toml to be placed in user PersonalLib.

import os
import time

from pyedb import Edb
from pyaedt import Hfss3dLayout
from pyaedt import Desktop
import toml


aedttmp = Desktop(non_graphical=True)
personallib=aedttmp.personallib
print(personallib)
aedttmp.close_desktop()


print("This toml file will be used to create cutout: ", os.path.join(personallib,"cutoutsetup.toml"))

# Setting of toml configuration file used to set a dictionary
res = toml.load(os.path.join(personallib,"cutoutsetup.toml"))


# path to the aedb to import
aedbpathin = res['aedb']['aedbpathin']
# Name of the aedb directory to convert
aedbfilein = res['aedb']['aedbfilein']
# full path of input file
aedbinput = os.path.join(aedbpathin, aedbfilein)

# Directory where  project will be created
aedbpathout = res['aedb']['aedbpathout']
# Name of the new aedb folder and SIwave project name
aedbfileout = res['aedb']['aedbfileout']
# Name of the new created aedb directory
aedboutput = os.path.join(aedbpathout, aedbfileout + ".aedb")

# Polygon coordinate
polygon = res['polygon']['pointlist']
print("These points will be used to create the cutout polygon: ", polygon)
unit = res['polygon']['unit']
print("Unit of polygon points: ", unit)

# Version of AEDT to be used
AEDT_VERSION = res['aedt']['version']

edbapp = Edb(edbpath=aedbinput, edbversion=AEDT_VERSION)
edbapp.save_edb_as(aedboutput)

edbapp.cutout(open_cutout_at_end=False,
              reference_list=None,
              custom_extent=polygon,
              custom_extent_units=unit,
              number_of_threads=8,
              use_pyaedt_cutout=True,
              )

# Save and close aedb
edbapp.save_edb()
print("edb saved")
edbapp.close_edb()
print("Edb closed")

time.sleep(10)

from pythonnet import unload
unload()

toml file below named "cutoutsetup.toml" need to be placed in user PersonalLib. In this toml file user will specify:

• Path to the aedb directory to convert
• Path to where the new aedb directory will be created
• Name of the aedb directory to convert
• Name of the new aedb file without extension
• list of polygon coordinate
• Version of AEDT to be used

[aedb]
# Path to the aedb directory to convert
aedbpathin = "D:\\Data\\siverse\\clean"
# Path to where the new aedb directory will be created
aedbpathout = "D:\\Data\\siverse\\clean\\cutout"
# Name of the aedb directory to convert
aedbfilein = "ANSYS-HSD_V1_0.aedb"
# Name of the new aedb file without extension
aedbfileout = "ANSYS-HSD_V1_0_cut"

[polygon]
# list of polygon coordinate
pointlist = [[10,50], [71,50], [71,24], [10,24]]
# Unit of polygon points
unit = "mm"

[aedt]
# Version of AEDT to be used "2023.2" for 2023R2, "2024.1" for 2024R1
version = "2024.2"

The script can be started from AEDT using "Extension Manager" to create an icon or using run PyAEDT script.
It can be placed as well in a bat file.