mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-09 09:21:46 +00:00
Gorgious56
6fa984ce2b
Three user-facing fixes for the MEP-system gizmo surface: 1. MEP pair-disconnect no longer crashes Blender. The MEPSystemPathDecorator cached entity_instance references in _cached_walk; deleting a bridging fitting via the gizmo left a freed SWIG handle in the list, and the next _build_geometry pass segfaulted on .is_a. The cache now stores STEP integer ids and re-resolves via ifc_file.by_id on each draw, plus folds tool.Parametric.get_geom_generation into the cache key — ifcopenshell.api mutations invalidate before the next frame regardless of how the deletion was routed. 2. Bend re-edit pen icon stays reachable. The bend creation path tessellates the swept-disk body (upstream geometry-kernel workaround), so tool.System.has_parametric_body correctly returns False for a freshly-committed bend. _active_is_bend_fitting and GizmoMEPActions.is_eligible_object now fall back to the type's BBIM_Fitting pset — the same source bim.enable_bend_preview_from_bend reads parameters from — keeping the pen icon eligible. 3. MEP pair / per-port unjoin icons unified through bim.disconnect_elements. The MEP gizmo group's three unjoin icons (pair, start, end) now share the wall-disconnect surface: same VIEW3D_GT_wall_link_toggle icon, same bim.disconnect_elements operator. tool.Connection.find_rels learned a new "mep-pair-fitting" kind that returns the bridging fitting as the disconnect target; core.connection.disconnect_rel grew the matching dispatch arm. The old MEPUnjoinAtPort and MEPUnjoinPair operators are removed. Also registered wall.GizmoPairDisconnect (previously declared but never in the classes tuple, so dead code) for the wall+slab pair-disconnect surface, and extracted MEP port-topology helpers (find_bridging_fitting, is_disconnectable_fitting, neighbours_at_ports) onto tool.System so the canonical walk has a single home. 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* |