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Dion Moult
4b642c5e00
file.remove() on a RocksDB-backed file segfaulted. Reducing it turned up five gaps that each made editing such a file crash or silently do nothing: - process_deletion_inverse() decoded the v| inverse-record values as size_t while the serializer, register_inverse(), unregister_inverse() and instances_by_reference() use uint32_t, so std::find failed and vals.erase(end()) was undefined behaviour. It also took the DeleteRange end from an iterator that is invalid when the instance has no inverse records. Decode as uint32_t, remove every occurrence guarded on "found", and derive the range end from the prefix itself. - attribute_value::size() ignored storage_model_, so every aggregate assignment on a RocksDB instance threw "Invalid variant index" from set_attribute_value(). Branch on the storage model like the sibling accessors and count the deserialized aggregate. - rocks_db_file_storage::create() was a stub returning an empty handle, which anything creating an instance then dereferenced. Implement it after in_memory_file_storage::create(). - max_id_ is only initialised by the in-memory parse, so a RocksDB file would have handed out ids that overwrite existing instances. Implement the recalculate_id_counter() stub per backend and run it once before the first fresh_id() on RocksDB. - byid_.erase() was a no-op: set_to_map_transformer::erase() and rocksdb_set_view::erase() were stubs. The deleted instance's attribute keys and cached handle survived, entity_names() still listed it and reopening the database threw. Erase deletes every key under the instance's prefix; the transformer forwards to it and takes an on-erase hook the storage uses to drop the cached handle. root.remove_product on the first 200 products of a 61 MB model now leaves the same surviving ids and inverse counts whether the file was opened from SPF or converted to RocksDB. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HNrXDmR88wKPCYwGE21SyH
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* |
| ifcgeomserver | 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* |
| serializers | Internal library for IfcOpenShell | LGPL-3.0-or-later* |