[IfcOpenShell-Python] How to update an ifc2x3 to ifc4 with a script?

Martin156131

So in BlenderBIM there is the possibility to update an ifc2x3 to ifc4

What is the command behind it? so that can be used for an script?

theoryshaw

does this get you started? https://www.dropbox.com/s/tl0ibm3ss6cc17f/2023-02-07_10-13-54_Blender_blender.mp4?dl=0

Martin156131

Thanks @theoryshaw

So it was the recipe https://github.com/IfcOpenShell/IfcOpenShell/blob/v0.7.0/src/ifcpatch/ifcpatch/recipes/Migrate.py

Martin156131

So i wrote that little script. The varibale path_to_directory is just a directory, the script takes all the ifc file in a given directory and tries to make an IFC4 and optimize a litte bit.

import ifcpatch
import ifcopenshell
from pathlib import Path

for path in path_to_directory.glob("*.ifc"):
    abs_path = path.resolve()
    name = path.name
    model = ifcopenshell.open(abs_path)
    output = ifcpatch.execute({"input": name, 
                  "file": model,"recipe": "Migrate", "arguments": ["IFC4"]})

    new_name_ifc4 =  f"IFC4-{name}"
    path_to_new = new_Folder / new_name_ifc4
    ifcpatch.write(output, str(path_to_new))

    output_2 = ifcpatch.execute({"input": new_name_ifc4,"file": output, "recipe": "RecycleNonRootedElements", "arguments": []})

    name_ifc4_opt =  f"Opt-IFC4-{name}"

    path_to_new = new_Folder / name_ifc4_opt

    ifcpatch.write(output,  str(path_to_new))