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https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-09 09:21:46 +00:00
Petru Conduraru
bc1fb2a88d
* Bonsai: move annotations between drawings when reassigning their group Assigning an IfcAnnotation to a group that represents another drawing previously left the annotation in both drawings at once: it stayed in its old drawing group, its Blender object stayed in the old drawing collection, and it kept the old camera depth, so the reassignment appeared to do nothing useful. Issue #2966 documents the seven step manual workaround users needed instead. The assign group operator now detects when the target group represents a drawing (via the new tool.Drawing.get_group_drawing, the inverse of get_drawing_group), unassigns the annotation from its previous drawing group, moves its object into the new drawing collection, and places it on the new drawing camera plane. The target camera is imported on demand when it has not been loaded yet, matching the pattern used by the activate drawing operator. Generated with the assistance of an AI coding tool. * Bonsai: add one click copy of annotations to another drawing (#2966) Duplicating an annotation into a different drawing used to require a seven step manual process: loading groups in scene properties, copying the object, fixing its group assignment by hand, and repositioning it onto the target camera plane. A plain Blender duplicate is not enough because the copy keeps pointing at the same IFC entity, and the Shift D override, while it does create a genuine new entity through root.copy_class, leaves the duplicate in the source drawing group, collection, and camera depth. The new copy annotation to drawing operator packages the proven recipe already used by duplicate drawing into one action: duplicate through tool.Geometry.duplicate_ifc_objects, unassign the copy from the source drawing group, assign it to the chosen target group, place it on the target camera plane at the same world XY, and file it into the target drawing collection. The originals are left untouched and the user's selection is restored. The target camera is imported on demand when it has not been loaded yet. The operator shows a target drawing dropdown and is reachable from the annotation tool sidebar when an annotation is selected, and from the drawings panel. Annotations already in the target drawing are skipped and reported. The orchestration lives in core.drawing.copy_annotations_to_drawing with prophecy tests covering the copy, the skip, and the camera import branches. Verified live in headless Blender 5.1: the copy is a new IfcAnnotation with its own GlobalId and IfcTextLiteral, both texts are editable independently, and everything survives save and reload with each annotation loading in its own drawing. 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* |