Ryan Schultz e6697d0956 Replace select_products flags with a mode enum and consolidate loops
Spatial.select_products now takes mode="ADD"|"REMOVE"|"FILTER" instead
of the mutually exclusive remove / filter_selection booleans, matching
the regex dialog's action enum; helper.selection_mode() maps each
operator's two flag properties to it. core.select_by_material updated
accordingly. Upstream callers pass only products/unhide and are
unaffected.

select_ifc_class, select_similar_type, select_aggregate and
select_linked_aggregates now collect elements and delegate to
select_products instead of hand-rolling unhide/select/filter loops;
select_aggregate's manual IsDecomposedBy recursion is replaced with
get_parts/get_decomposition. Only select_similar keeps a bespoke loop
(tolerance-based value matching).

Intentional behavior deltas (also in the dev note): remove mode uses
plain select_set(False), so select_ifc_class no longer re-anchors the
active object; select_similar_type drops its O(n^2) visible_objects
gate and can latently select hidden occurrences like the other
operators; select_ifc_class and select_similar_type write the
clipboard query in every mode.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-15 09:09:52 -05:00
2026-03-20 15:43:13 +05:00
2025-12-19 18:53:14 +05:00
2025-12-19 18:53:14 +05:00
2026-01-26 17:10:02 +05:00
2023-09-14 09:29:20 +02:00
2026-02-18 09:09:46 +11:00
2025-08-28 20:05:45 +02:00
2025-08-28 20:05:45 +02:00
2025-11-20 22:06:24 +11:00

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!

Open Collective Contributors

Contents

Name Description License Service
bcf Library to read and write BCF-XML and query OpenCDE BCF-API modules LGPL-3.0-or-later PyPI Anaconda-Server Badge
bonsai Add-on to Blender providing a graphical native IFC authoring platform GPL-3.0-or-later Official GitHub Unstable Chocolatey
bsdd Library to query the bSDD API LGPL-3.0-or-later PyPI
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 PyPI
ifc5d Report and optimise cost information from IFC LGPL-3.0-or-later PyPI
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 PyPI
ifcclash Clash detection library and CLI app LGPL-3.0-or-later PyPI
ifcconvert CLI app to convert IFC to many other formats LGPL-3.0-or-later* Official GitHub
ifccsv Library and CLI app to export and import schedules from IFC LGPL-3.0-or-later PyPI
ifcdiff Compare changes between IFC models LGPL-3.0-or-later PyPI
ifcfm Extract IFC data for FM handover requirements LGPL-3.0-or-later PyPI
ifcmax Historic extension for IFC support in 3DS Max LGPL-3.0-or-later* Official
ifcopenshell-python Python library for IFC manipulation LGPL-3.0-or-later* Official GitHub PyPI Anaconda Anaconda Docker AUR AUR Unstable Pyodide WASM Wheels
ifcpatch Utility to run pre-packaged scripts to manipulate IFCs LGPL-3.0-or-later PyPI
ifcsverchok Blender Add-on for visual node programming with IFC GPL-3.0-or-later GitHub Unstable
ifctester Library, CLI and webapp for IDS model auditing LGPL-3.0-or-later PyPI

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*
S
Description
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Readme 524 MiB
Languages
C++ 57.4%
Python 36.2%
C 3.9%
Gherkin 0.7%
JavaScript 0.3%
Other 1.3%