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https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-09 17:31:45 +00:00
Andrej730
bf4aa8cbb1
Not sure why it occurred only now, maybe after recent changes with shared libraries this problem just got more apparent and previously it was masked by some other library after mappings also using IfcGeom. But the issue was that mapping were not linked against IfcGeom, though it's symbols were used in them. E.g. IfcSectionedSurface.cpp was using `has_loft` from `infra_sweep_helper`. Issue occurred only on Linux - msvc and clang are less strict and probably do multiple passes to fetch symbols. Example errors: ``` libgeometry_mapping_ifc4x3.a(IfcSectionedSolidHorizontal.cpp.o): In function `ifcopenshell::geometry::mapping_Ifc4x3::map_impl(Ifc4x3::IfcSectionedSolidHorizontal const*)': IfcSectionedSolidHorizontal.cpp:(.text._ZN12ifcopenshell8geometry14mapping_Ifc4x38map_implEPKN6Ifc4x327IfcSectionedSolidHorizontalE+0x19a4): undefined reference to `ifcopenshell::geometry::make_loft(ifcopenshell::geometry::Settings const&, IfcUtil::IfcBaseClass const*, std::shared_ptr<ifcopenshell::geometry::taxonomy::function_item> const&, std::vector<ifcopenshell::geometry::cross_section, std::allocator<ifcopenshell::geometry::cross_section> >&)' libgeometry_mapping_ifc4x3.a(IfcSectionedSurface.cpp.o): In function `ifcopenshell::geometry::mapping_Ifc4x3::map_impl(Ifc4x3::IfcSectionedSurface const*)': IfcSectionedSurface.cpp:(.text._ZN12ifcopenshell8geometry14mapping_Ifc4x38map_implEPKN6Ifc4x319IfcSectionedSurfaceE+0x19c4): undefined reference to `ifcopenshell::geometry::make_loft(ifcopenshell::geometry::Settings const&, IfcUtil::IfcBaseClass const*, std::shared_ptr<ifcopenshell::geometry::taxonomy::function_item> const&, std::vector<ifcopenshell::geometry::cross_section, std::allocator<ifcopenshell::geometry::cross_section> >&)' libgeometry_mapping_ifc4x3_tc1.a(IfcSectionedSolidHorizontal.cpp.o): In function `ifcopenshell::geometry::mapping_Ifc4x3_tc1::map_impl(Ifc4x3_tc1::IfcSectionedSolidHorizontal const*)': IfcSectionedSolidHorizontal.cpp:(.text._ZN12ifcopenshell8geometry18mapping_Ifc4x3_tc18map_implEPKN10Ifc4x3_tc127IfcSectionedSolidHorizontalE+0x19a4): undefined reference to `ifcopenshell::geometry::make_loft(ifcopenshell::geometry::Settings const&, IfcUtil::IfcBaseClass const*, std::shared_ptr<ifcopenshell::geometry::taxonomy::function_item> const&, std::vector<ifcopenshell::geometry::cross_section, std::allocator<ifcopenshell::geometry::cross_section> >&)' libgeometry_mapping_ifc4x3_tc1.a(IfcSectionedSurface.cpp.o): In function `ifcopenshell::geometry::mapping_Ifc4x3_tc1::map_impl(Ifc4x3_tc1::IfcSectionedSurface const*)': IfcSectionedSurface.cpp:(.text._ZN12ifcopenshell8geometry18mapping_Ifc4x3_tc18map_implEPKN10Ifc4x3_tc119IfcSectionedSurfaceE+0x19c4): undefined reference to `ifcopenshell::geometry::make_loft(ifcopenshell::geometry::Settings const&, IfcUtil::IfcBaseClass const*, std::shared_ptr<ifcopenshell::geometry::taxonomy::function_item> const&, std::vector<ifcopenshell::geometry::cross_section, std::allocator<ifcopenshell::geometry::cross_section> >&)' libgeometry_mapping_ifc4x3_add1.a(IfcSectionedSolidHorizontal.cpp.o): In function `ifcopenshell::geometry::mapping_Ifc4x3_add1::map_impl(Ifc4x3_add1::IfcSectionedSolidHorizontal const*)': IfcSectionedSolidHorizontal.cpp:(.text._ZN12ifcopenshell8geometry19mapping_Ifc4x3_add18map_implEPKN11Ifc4x3_add127IfcSectionedSolidHorizontalE+0x19a4): undefined reference to `ifcopenshell::geometry::make_loft(ifcopenshell::geometry::Settings const&, IfcUtil::IfcBaseClass const*, std::shared_ptr<ifcopenshell::geometry::taxonomy::function_item> const&, std::vector<ifcopenshell::geometry::cross_section, std::allocator<ifcopenshell::geometry::cross_section> >&)' libgeometry_mapping_ifc4x3_add1.a(IfcSectionedSurface.cpp.o):IfcSectionedSurface.cpp:(.text._ZN12ifcopenshell8geometry19mapping_Ifc4x3_add18map_implEPKN11Ifc4x3_add119IfcSectionedSurfaceE+0x19c4): more undefined references to `ifcopenshell::geometry::make_loft(ifcopenshell::geometry::Settings const&, IfcUtil::IfcBaseClass const*, std::shared_ptr<ifcopenshell::geometry::taxonomy::function_item> const&, std::vector<ifcopenshell::geometry::cross_section, std::allocator<ifcopenshell::geometry::cross_section> >&)' follow collect2: error: ld returned 1 exit status ```
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 |  |
| 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* | |
| 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 |  |
| 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* |