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Gorgious56
e7e489e390
Three changes to the shared Enable/Finish/Cancel mixins: 1. Always-on drift triad on ParametricEditMixinBase. The base now provides ``_handle_drift_on_enable`` / ``_handle_drift_on_finish`` / ``_handle_drift_on_cancel`` classmethods, called from the per-mixin ``_enable_one`` / ``_finish_one`` / ``_cancel_one``. Pre-edit Blender-side translations commit to IFC on Enable (apply_scale=False — only translation/rotation, not the user's accidental scale), in-edit drag commits on Finish (apply_scale=True), and Cancel restores the committed IFC placement via ``restore_or_rebaseline_placement``. Prevents the "uncommitted drag disappears on Finish" and "preview snaps back on Cancel" UX bugs. 2. ``_ParametricEditMixinBase`` renamed to ``ParametricEditMixinBase`` (public). Per-feature mixins that need to subclass directly (e.g., when neither FeatureModifier nor PathPreserving fits) can do so without reaching into a private name. 3. ``_update_modifier_bmesh`` (PathPreserving) renamed to ``_restore_viewport_after_cancel``. The old name was inaccurate for subclasses that load a different IFC representation on Cancel rather than rebuilding a bmesh preview from props. Plus two polish changes: * ``_mark_type_thumbnail_dirty`` helper on the base centralises the ``ifcopenshell.util.element.get_type`` + thumbnail-mark pattern that both mixins repeated inline. * ``FeatureModifierEditMixin._cancel_one`` and ``PathPreservingEditMixin._cancel_one`` wrap the restore in ``try/finally`` so ``props.is_editing = False`` flips even on partial restore failure. Without this, a Cancel that raised mid-restore would leave the user locked out of the edit lifecycle. * ``PathPreservingEditMixin._finish_one`` / ``_cancel_one`` skip the pset commit + viewport rebuild when the draft equals the stored pset (no-op Enable→Finish round-trip should not pollute the representation list or burn an undo entry). ``FeatureModifierEditMixin._finish_one`` now routes the pset commit through ``tool.Pset.write_bbim_data`` instead of inlining the ``createIfcText(json.dumps(...))`` + ``ifcopenshell.api.pset.edit_pset`` dance. Two test assertions updated to match. Generated with the assistance of an AI coding tool.
IfcOpenShell
IfcOpenShell is an open source (LGPL) software library for working with Industry Foundation Classes (IFC). Complete parsing support is provided for IFC2x3 TC1, IFC4 Add2 TC1, IFC4x1, IFC4x2, and IFC4x3 Add2. Extensive geometric support is implemented for the IFC releases IFC2x3 TC1 and IFC4 Add2 TC1. Extending with support for arbitrary IFC schemas is possible at compile-time when using C++ and at run-time when using Python.
In addition to a C++ and Python API, IfcOpenShell comes with an ecosystem of tools, notably including IfcConvert (an application to convert IFC models to other formats), Bonsai (an add-on to Blender providing a graphical IFC authoring platform), and many other libraries, CLI apps, and more. Support is also provided for auxiliary standards such as BCF and IDS.
For more information, see:
Development is sponsored through your generous donations!
Contents
| Name | Description | License | Service |
|---|---|---|---|
| bcf | Library to read and write BCF-XML and query OpenCDE BCF-API modules | LGPL-3.0-or-later |   |
| bonsai | Add-on to Blender providing a graphical native IFC authoring platform | GPL-3.0-or-later |    |
| bsdd | Library to query the bSDD API | LGPL-3.0-or-later |  |
| ifc2ca | Utility to convert IFC structural analysis models to Code_Aster | LGPL-3.0-or-later | |
| ifc4d | Convert to and from IFC and project management software | LGPL-3.0-or-later |  |
| ifc5d | Report and optimise cost information from IFC | LGPL-3.0-or-later |  |
| ifcbimtester | Wrapper for Gherkin based unit testing for IFC models | LGPL-3.0-or-later | |
| ifcblender | Historic Blender IFC import add-on | LGPL-3.0-or-later* | |
| ifccityjson | Convert CityJSON to IFC | LGPL-3.0-or-later |  |
| ifcclash | Clash detection library and CLI app | LGPL-3.0-or-later |  |
| ifcconvert | CLI app to convert IFC to many other formats | LGPL-3.0-or-later* |   |
| ifccsv | Library and CLI app to export and import schedules from IFC | LGPL-3.0-or-later |  |
| ifcdiff | Compare changes between IFC models | LGPL-3.0-or-later |  |
| ifcedit | CLI wrapper for ifcopenshell.api IFC model mutation functions | LGPL-3.0-or-later |  |
| ifcfm | Extract IFC data for FM handover requirements | LGPL-3.0-or-later |  |
| ifcmax | Historic extension for IFC support in 3DS Max | LGPL-3.0-or-later* | |
| ifcmcp | MCP server for querying and editing IFC building models | LGPL-3.0-or-later |  |
| ifcopenshell-python | Python library for IFC manipulation | LGPL-3.0-or-later* |         |
| ifcpatch | Utility to run pre-packaged scripts to manipulate IFCs | LGPL-3.0-or-later |  |
| ifcquery | CLI tool for querying and inspecting IFC building models | LGPL-3.0-or-later |  |
| ifcsverchok | Blender Add-on for visual node programming with IFC | GPL-3.0-or-later |  |
| ifctester | Library, CLI and webapp for IDS model auditing | LGPL-3.0-or-later |  |
The IfcOpenShell C++ codebase is split into multiple interal libraries:
| Name | Description | License |
|---|---|---|
| ifcgeom | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcgeom_schema_agnostic | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcgeomserver | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcjni | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcparse | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| ifcwrap | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| qtviewer | Internal library for IfcOpenShell | LGPL-3.0-or-later* |
| serializers | Internal library for IfcOpenShell | LGPL-3.0-or-later* |