The error was:
```
Traceback (most recent call last):
File "\IfcOpenShell\src\ifcopenshell-python\ifcopenshell\util\generate_pset_templates.py", line 416, in <module>
templates_generator.parse_ifc4x3_data()
File "\IfcOpenShell\src\ifcopenshell-python\ifcopenshell\util\generate_pset_templates.py", line 94, in parse_ifc4x3_data
self.parse_psets_data("IFC4X3", pset_data_glob, "IFC4X3 Property Set Templates", str(IFC4x3_OUTPUT_PATH))
File "\IfcOpenShell\src\ifcopenshell-python\ifcopenshell\util\generate_pset_templates.py", line 129, in parse_psets_data
schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(schema_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "\ifcopenshell\ifcopenshell_wrapper.py", line 9037, in schema_by_name
return _ifcopenshell_wrapper.schema_by_name(arg1)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: No schema named IFC4X3
```
When adding a single duct in MEP no ports where attached.
The function create_profiles_from_polyline does not call DumbProfileJoiner (which eventually calls MEPGenerator().setup_ports).
I have added a check so if there is only one segment, the MEPGenerator().setup_ports is called explictily
Currently the flow direction decorations run in the local Y. This means that if one is creating ducts/pipes in the xy plane, the decorations are drawn in planes perpendicular to that one and than means that the arrows are not visible from a top/bottom view.
By adding another set of arrows perpendicular the arrows are always visible no matter what projection is taken
This Shift-E still needs more polish as we figure out the best hotkeys
and what's most natural to users when they select different combinations
of objects, so expect the conditionals that govern when Shift-E does
things to still change in the future.
There are a few differences to the previous implementation:
1. It is no longer recalculated on wall regeneration. The new wall
regeneration is strict to the spec on the rules of rel connects path,
and so this being a "userdefined" connection we only calculate it
explicitly when the user invokes the operator.
2. It uses meshes instead of clipping planes, so you can clip to
strange shapes or gable roofs or whatever. Nice.
Andrej730