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Petru Conduraru
f23db9440f
Follow-up to the scalar-only fix in #8754, per aothms's direct request on that PR ("Please do make all int types consistent") and his own original 2023 design intent on issue #3058 ("make all integers (incl. schema namespaces) an int64_t"). Widens the remaining inconsistent spots now that compatibility isn't a constraint on this v0.9 branch: - Integer aggregates (IfcTriangulatedFaceSet.CoordIndex and similar List<int> attributes), including the SWIG to_vec_int/to_vec_vec_int helpers, which previously silently truncated via static_cast<int> on the Python-set path - the same bug class as the original scalar issue. - The schema code generator (express/mapping.py's integer type mapping), and all 12 generated schema header/source pairs regenerated to match, so every schema-typed getter/setter (e.g. IfcOwnerHistory::CreationDate) is int64_t end to end, not just the dynamic attribute-value path. Instance/reference identifiers (STEP #123 ids) are deliberately left at 32-bit: they're a file-local index into internal maps, not an EXPRESS domain value an application chooses, and no realistic STEP file has billions of entities. The lexer's Token_IDENTIFIER parsing still funnels through a 32-bit int for this reason - flagged as a known, low-risk gap rather than fixed, since fixing it would mean touching indexing/hashing code for no realistic benefit. Verified: original PR's round-trip tests extended with aggregate cases (IfcTriangulatedFaceSet.CoordIndex, InnerCoordIndices) at 64-bit boundary values, in memory and through STEP text, IFC2X3 and IFC4. A standalone C++ program exercising the generated schema API directly (Ifc4::IfcOwnerHistory ::setCreationDate/CreationDate, IfcTriangulatedFaceSet::setCoordIndex/ CoordIndex) confirms int64_t end to end, bypassing SWIG. Full build (BUILD_IFCGEOM, WITH_OPENCASCADE, BUILD_IFCPYTHON, IFC2X3+IFC4) clean. test/util/test_attribute.py and test_file.py pass unchanged. This contribution was produced 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* |