build_pyodide: debug

2026-08-21 12:36:00 +00:00 · 2026-08-07 12:12:36 +05:00
593 changed files with 17257 additions and 13523 deletions
@@ -1,4 +1,5 @@
 Checks:          'bugprone-*,cert-*,clang-analyzer-*,readability-*'
 WarningsAsErrors: ''
 HeaderFilterRegex: ''
+AnalyzeTemporaryDtors: false
 FormatStyle: none
@@ -35,9 +35,6 @@ jobs:
          lfs: true
          token: ${{ secrets.BUILD_REPO_TOKEN }}

-      - name: Set up uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
-
      - name: Install Dependencies
        run: |
          brew update
@@ -64,7 +61,7 @@ jobs:
      - name: Unpack Dependencies
        run: |
          cd build
-          uv run ../nix/cache_dependencies.py unpack
+          python ../nix/cache_dependencies.py unpack

      - name: ccache
        uses: hendrikmuhs/ccache-action@v1.2.23
@@ -105,7 +102,7 @@ jobs:
          # INSTALL_RPATH to "@loader_path" on Apple.
          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release \
            BUILD_BONSAIVIEWER=ON QT_DIR="${QT_DIR}" \
-            uv run ./nix/build-all.py -v --diskcleanup --ifcopenshell-shared ${MAC_INTEL} \
+            python3 ./nix/build-all.py -v --diskcleanup --ifcopenshell-shared ${MAC_INTEL} \
            | tee build.log

      - name: Upload Build Logs
@@ -122,7 +119,7 @@ jobs:
      - name: Pack Dependencies
        run: |
          cd build
-          uv run ../nix/cache_dependencies.py pack
+          python ../nix/cache_dependencies.py pack

      - name: Commit and Push Changes to Build Repository
        run: |
@@ -139,7 +136,7 @@ jobs:
          # packaging/build.py stages the connector binary + connector.json
          # into dist/autodesk/; the .app loop below copies that folder into
          # the bundle. Same on-disk shape as the Linux and Windows builds.
-          uv run src/bonsaiviewer-autodesk/packaging/build.py
+          python3 src/bonsaiviewer-autodesk/packaging/build.py
          autodesk_connector_dir="$PWD/src/bonsaiviewer-autodesk/dist/autodesk"
          test -d "$autodesk_connector_dir"

@@ -92,6 +92,10 @@ jobs:
          ./run_pytest.py setup
          ./run_pytest.py run

+      - name: Setup tmate session
+        if: failure()
+        uses: mxschmitt/action-tmate@v3
+
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v6
        with:
@@ -72,7 +72,7 @@ jobs:
          python-version: '3.11'
      - name: Get current version
        id: version
-        run: echo "version=$(sed -E 's/[[:alpha:]]+[0-9]+$//' VERSION)" >> $GITHUB_OUTPUT
+        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
      - name: Compile
        run: |
          cd src/bonsai && make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }}
@@ -27,9 +27,7 @@ jobs:
      
      - name: Get current version
        id: version
-        # Strip any trailing prerelease label and number; the dated alpha
-        # suffix is added below.
-        run: echo "version=$(sed -E 's/[[:alpha:]]+[0-9]+$//' VERSION)" >> $GITHUB_OUTPUT
+        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
      
      - name: Get current date
        id: date
@@ -32,7 +32,7 @@ jobs:
          python-version: '3.11'
      - name: Get current version
        id: version
-        run: echo "version=$(sed -E 's/[[:alpha:]]+[0-9]+$//' VERSION)" >> $GITHUB_OUTPUT
+        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
      - name: Get current date
        id: date
        run: echo "date=$(date +'%y%m%d')" >> $GITHUB_OUTPUT
@@ -43,7 +43,6 @@ jobs:
          sudo apt update
          sudo apt-get install --no-install-recommends -y \
            cmake \
-            bison \
            gcc \
            g++ \
            libboost-date-time-dev \
@@ -62,23 +61,13 @@ jobs:
            libocct-ocaf-dev \
            libocct-visualization-dev \
            libpcre3-dev \
-            libpcre2-dev \
            libtbb-dev \
            libxml2-dev \
            libxi-dev \
            occt-misc \
            tcl-dev \
-            tk-dev
-
-      - name: Build SWIG
-        # IfcOpenShell requires SWIG 4.1+, ubuntu-22.04 ships 4.0.2.
-        run: |
-          sudo apt-get remove --purge -y swig swig4.0
-          git clone https://github.com/swig/swig --branch v4.2.1 --depth 1
-          cmake -S swig -B swig/build -DCMAKE_BUILD_TYPE=Release
-          cmake --build swig/build -j "$(nproc)"
-          sudo cmake --install swig/build
-          swig -version
+            tk-dev \
+            swig

      - name: Configure minimal IfcOpenShell
        run: |
@@ -121,7 +121,7 @@ jobs:
          cd OpenCOLLADA
          git checkout v1.6.68
          patch -p1 --batch --forward -i ../nix/patches/opencollada/pr622_and_disable_subdirs.patch
-          patch -p1 --batch --forward -i ../nix/patches/opencollada/config_select_libs_by_use_shared.patch
+          patch -p1 --batch --forward -i ../nix/patches/opencollada/allow_static_libraries_config_on_unix.patch
          mkdir build && cd build
          cmake .. \
            -DCMAKE_BUILD_TYPE=Release \
@@ -1,87 +0,0 @@
-# This file was generated with the assistance of an AI coding tool.
-
-name: Publish C++ API documentation
-
-on:
-  push:
-    branches:
-      - v0.9.0
-    paths:
-      - '.github/workflows/publish-cpp-api-docs.yml'
-      - 'docs/cpp-api/**'
-      - 'src/ifcgeom/**'
-      - 'src/ifcparse/**'
-      - 'src/serializers/**'
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-concurrency:
-  group: publish-cpp-api-docs
-  cancel-in-progress: false
-
-jobs:
-  publish:
-    if: github.repository == 'IfcOpenShell/IfcOpenShell'
-    runs-on: ubuntu-24.04
-
-    steps:
-      - name: Checkout IfcOpenShell
-        uses: actions/checkout@v7
-
-      - name: Set up Python
-        uses: actions/setup-python@v7
-        with:
-          python-version: '3.10'
-
-      - name: Install documentation dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install --yes doxygen graphviz
-          python -m pip install --requirement docs/cpp-api/requirements.txt
-
-      - name: Build C++ API documentation
-        working-directory: docs/cpp-api
-        run: |
-          export PROJECT_NUMBER="$(git rev-parse --short HEAD)"
-          python -m sphinx -M html . output -W --keep-going
-
-      - name: Checkout documentation repository
-        uses: actions/checkout@v7
-        with:
-          repository: IfcOpenShell/cpp_docs
-          ref: master
-          path: published-docs
-          token: ${{ secrets.BUILD_REPO_TOKEN }}
-
-      - name: Replace published documentation
-        run: |
-          publish_tree="${RUNNER_TEMP}/published-docs-tree"
-          mkdir -p "${publish_tree}/v0.9.0-latest"
-
-          rsync --archive docs/cpp-api/output/html/ "${publish_tree}/v0.9.0-latest/"
-          touch "${publish_tree}/.nojekyll"
-
-          if [[ -f published-docs/CNAME ]]; then
-            cp published-docs/CNAME "${publish_tree}/CNAME"
-          fi
-
-          rsync --archive --delete --exclude='.git/' "${publish_tree}/" published-docs/
-
-      - name: Commit and push if changed
-        working-directory: published-docs
-        env:
-          SOURCE_SHA: ${{ github.sha }}
-        run: |
-          git config user.name 'IfcOpenBot'
-          git config user.email 'IfcOpenBot@users.noreply.github.com'
-
-          git add --all
-          if git diff --cached --quiet; then
-            echo "No changes to commit"
-            exit 0
-          fi
-
-          git commit -m "Update C++ API docs from ${SOURCE_SHA:0:7}"
-          git push origin master
@@ -111,11 +111,10 @@ src/ifcopenshell-python/ifcopenshell/_ifcopenshell_wrapper*.so
 src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.py

 # plugins
-src/ifcopenshell-python/ifcopenshell/ifcopenshell_document_*.so
-src/ifcopenshell-python/ifcopenshell/ifcopenshell_geometry_*.so
-src/ifcopenshell-python/ifcopenshell/ifcopenshell_parse_schema*.so
+src/ifcopenshell-python/ifcopenshell/ifcopenshell.document.*.so
+src/ifcopenshell-python/ifcopenshell/ifcopenshell.geometry.*.so
+src/ifcopenshell-python/ifcopenshell/ifcopenshell.parse.schema*.so
 src/ifcopenshell-python/ifcopenshell/libifcopenshell.geometry.so
-src/ifcopenshell-python/ifcopenshell/libifcopenshell.geometry.writer.so
 src/ifcopenshell-python/ifcopenshell/libifcopenshell.parse.so
 src/ifcopenshell-python/ifcopenshell/libifcopenshell.plugin.so

@@ -126,9 +125,6 @@ src/ifcopenshell-python/ifcopenshell/libifcopenshell.plugin.so
 .clangd
 # clangd cache
 .cache
-# Useful for symlinking json compilation database from cmake,
-# allowing clang commands without `-p path/to/build`.
-/compile_commands.json

 # Brickschema
 src/bonsai/bonsai/bim/schema/Brick.ttl
@@ -8,6 +8,9 @@
 [submodule "src/ifcopenshell-python/test/Sample-BIM-Files"]
 	path = src/ifcopenshell-python/test/Sample-BIM-Files
 	url = https://github.com/IfcOpenShell/ids-test-files
+[submodule "docs/cpp-api/assets/doxygen-awesome-css"]
+	path = docs/cpp-api/assets/doxygen-awesome-css
+	url = https://github.com/jothepro/doxygen-awesome-css.git
 [submodule "src/ifcopenshell-python/ifcopenshell/simple_spf"]
 	path = src/ifcopenshell-python/ifcopenshell/simple_spf
 	url = https://github.com/IfcOpenShell/step-file-parser
@@ -1 +1 @@
-0.9.0alpha0
+0.8.6
@@ -36,14 +36,6 @@ file(READ "../VERSION" "RELEASE_VERSION_")
 string(STRIP "${RELEASE_VERSION_}" RELEASE_VERSION)
 message(STATUS "Detected version '${RELEASE_VERSION}'")

-# CMake's project(VERSION) only accepts numeric components. Keep the complete
-# release identifier for build information, but use its numeric release part
-# for PROJECT_VERSION, SOVERSION, and generated CMake package metadata.
-string(REGEX MATCH "^[0-9]+\\.[0-9]+\\.[0-9]+" PROJECT_VERSION_NUMERIC "${RELEASE_VERSION}")
-if(NOT PROJECT_VERSION_NUMERIC)
-    message(FATAL_ERROR "VERSION must start with a numeric major.minor.patch version: '${RELEASE_VERSION}'")
-endif()
-
 add_definitions(-D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)

 if(POLICY CMP0141) # 3.25+
@@ -63,15 +55,9 @@ endif()
 # Include utility macros and functions
 include(utilities.cmake)

-# Use a SemVer-compatible spelling for CPack artifact names. A trailing
-# alphabetic label and number is separated from the numeric version by a
-# hyphen: for example, 0.9.0alpha0 becomes 0.9.0-alpha0.
+# use extra version to make pre-release using eg semver
 if(NOT DEFINED EXTRA_VERSION)
-    if(RELEASE_VERSION MATCHES "^[0-9]+\\.[0-9]+\\.[0-9]+([A-Za-z]+)([0-9]+)$")
-        set(EXTRA_VERSION "-${CMAKE_MATCH_1}${CMAKE_MATCH_2}")
-    else()
-        set(EXTRA_VERSION "")
-    endif()
+    set(EXTRA_VERSION "-alpha.3")
 endif()

 option(MINIMAL_BUILD "The build is to make a minimal version of IFC converter from OCCT into IFC." OFF)
@@ -133,7 +119,7 @@ option(WITH_ZSTD "Use Zstd compression in RocksDB writes" OFF)
 option(USERSPACE_PYTHON_PREFIX "Installs IfcPython for the current user only instead of system-wide." OFF)
 option(USE_DEBUG_PYTHON "Use debug binaries when building Debug IfcPython on Windows." OFF)
 option(ADD_COMMIT_SHA "Add commit sha and branch in version number, requires git" OFF)
-option(VERSION_OVERRIDE "Use VERSION as the branch label when commit information is embedded" OFF)
+option(VERSION_OVERRIDE "Override the version defined in buildinfo.cpp with the file VERSION in the repository root" OFF)

 set(
    PYTHON_MODULE_INSTALL_DIR
@@ -141,7 +127,15 @@ set(
    "Directory to install IfcPython package to. By default package is installed in found Python's site-packages."
 )

-project(IfcOpenShell VERSION ${PROJECT_VERSION_NUMERIC})
+if (VERSION_OVERRIDE)
+    file(READ "../VERSION" "RELEASE_VERSION_")
+    string(STRIP "${RELEASE_VERSION_}" RELEASE_VERSION)
+    message(STATUS "Detected version '${RELEASE_VERSION}'")
+else()
+    set(RELEASE_VERSION "0.8.0")
+endif()
+
+project(IfcOpenShell VERSION ${RELEASE_VERSION})

 # Make sure CMake modules in this project are found first
 list(PREPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
@@ -699,7 +693,8 @@ endif()

 # Documentation
 if(BUILD_DOCUMENTATION)
-    add_subdirectory(../docs/cpp-api docs/cpp-api)
+    set(CMAKE_MODULE_PATH "../docs/cmake")
+    add_subdirectory(../docs docs)
 endif()

 if(BUILD_EXAMPLES)
@@ -52,7 +52,6 @@ macro(SET_INSTALL_SELF_RPATH _target)
 endmacro()

 function(ifcopenshell_plugin_target TARGET)
-    # Plug-ins are loaded by exact filename and should not receive a platform library prefix.
    set_target_properties(${TARGET} PROPERTIES PREFIX "")
    if((NOT WIN32) AND BUILD_SHARED_LIBS AND NOT WASM_BUILD AND NOT CREATE_BUNDLE AND NOT CMAKE_INSTALL_RPATH AND COMMAND SET_INSTALL_SELF_RPATH)
        SET_INSTALL_SELF_RPATH(${TARGET})
@@ -1,15 +1,35 @@
-find_package(Doxygen REQUIRED)
-find_program(
-    SPHINX_EXECUTABLE
-    NAMES sphinx-build
-    REQUIRED
-    DOC "Path to the sphinx-build executable"
-)
+#Look for an executable called sphinx-build
+find_program(SPHINX_EXECUTABLE NAMES sphinx-build DOC "Path to sphinx-build executable")

-add_custom_target(
-    cpp_api_docs
-    COMMAND ${SPHINX_EXECUTABLE} -M html . output -W --keep-going
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    COMMENT "Generating the IfcOpenShell C++ API documentation"
-    VERBATIM
-)
+include(FindPackageHandleStandardArgs)
+
+#Handle standard arguments to find_package like REQUIRED and QUIET
+find_package_handle_standard_args(Sphinx "Failed to find sphinx-build executable" SPHINX_EXECUTABLE)
+
+find_package(Doxygen REQUIRED)
+#find_package(Sphinx REQUIRED)
+
+set(SPHINX_SOURCE ${CMAKE_CURRENT_SOURCE_DIR})
+set(SPHINX_BUILD ${CMAKE_CURRENT_BINARY_DIR}/docs/sphinx)
+
+message(STATUS "SPHINX BUILD ${CMAKE_CURRENT_BINARY_DIR}")
+
+file(MAKE_DIRECTORY ./output/doxygen)
+
+if(DOXYGEN_FOUND)
+    add_custom_target(
+        Sphinx
+        ALL
+        COMMAND ${SPHINX_EXECUTABLE} -v -T -b html ${SPHINX_SOURCE} ${CMAKE_CURRENT_SOURCE_DIR}/output
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/output
+        COMMENT "Generating documentation with Sphinx"
+    )
+
+    # add_custom_target(ifcopenshell_python_docs ALL
+    # COMMAND make html
+    # WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../src/ifcblenderexport/docs
+    # OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/../src/ifcblenderexport/docs
+    # COMMENT "Generating documentation with Sphinx")
+else(DOXYGEN_FOUND)
+    message("Doxygen need to be installed to generate the doxygen documentation")
+endif(DOXYGEN_FOUND)
@@ -68,7 +68,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.

-OUTPUT_DIRECTORY       = ./output/doxygen
+OUTPUT_DIRECTORY       = ./output

 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create up to 4096
 # sub-directories (in 2 levels) under the output directory of each output format
@@ -852,7 +852,7 @@ WARNINGS               = YES
 # will automatically be disabled.
 # The default value is: YES.

-WARN_IF_UNDOCUMENTED   = NO
+WARN_IF_UNDOCUMENTED   = YES

 # If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
 # potential errors in the documentation, such as documenting some parameters in
@@ -901,7 +901,7 @@ WARN_IF_UNDOC_ENUM_VAL = NO
 # Possible values are: NO, YES, FAIL_ON_WARNINGS and FAIL_ON_WARNINGS_PRINT.
 # The default value is: NO.

-WARN_AS_ERROR          = FAIL_ON_WARNINGS
+WARN_AS_ERROR          = NO

 # The WARN_FORMAT tag determines the format of the warning messages that doxygen
 # can produce. The string should contain the $file, $line, and $text tags, which
@@ -944,6 +944,7 @@ WARN_LOGFILE           =
 # Note: If this tag is empty the current directory is searched.

 INPUT                  = ../../src/ifcgeom \
+                         ../../src/ifcgeom_schema_agnostic \
                         ../../src/ifcparse \
                         ../../src/serializers \

@@ -1000,7 +1001,7 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.

-EXCLUDE                = ../../src/ifcparse/schemas
+EXCLUDE                =

 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded
@@ -1024,33 +1025,7 @@ EXCLUDE_PATTERNS       =
 # wildcard * is used, a substring. Examples: ANamespace, AClass,
 # ANamespace::AClass, ANamespace::*Test

-EXCLUDE_SYMBOLS        = "ifcopenshell::geom::opaque_number::*" \
-                         ifcopenshell::entity::attribute_by_name_cmp \
-                         ifcopenshell::impl::rocks_db_file_storage::rocksdb_types_iterator \
-                         ifcopenshell::impl::in_memory_file_storage::type_iterator \
-                         "util::string_buffer::*_item" \
-                         util::string_buffer::item \
-                         ifcopenshell::geom::layer_filter::wildcards_match \
-                         ifcopenshell::paged_file_impl::entry \
-                         ifcopenshell::token \
-                         attribute_value::pointer_type \
-                         INCLUDE_PARENT_PARENT_DIR \
-                         POSTFIX_SCHEMA_ \
-                         POSTFIX_SCHEMA__ \
-                         STRINGIFY_ \
-                         MAKE_INIT_FN_ \
-                         MAKE_INIT_FN__ \
-                         key_from_string \
-                         add_ \
-                         subtract_ \
-                         multiply_ \
-                         divide_ \
-                         equals_ \
-                         less_than_ \
-                         negate_ \
-                         ifcopenshell::geom::utils::create_cube \
-                         ifcopenshell::geom::utils::create_polyhedron \
-                         ifcopenshell::geom::utils::create_nef_polyhedron
+EXCLUDE_SYMBOLS        =

 # The EXAMPLE_PATH tag can be used to specify one or more files or directories
 # that contain example code fragments that are included (see the \include
@@ -1261,7 +1236,7 @@ IGNORE_PREFIX          =
 # If the GENERATE_HTML tag is set to YES, doxygen will generate HTML output
 # The default value is: YES.

-GENERATE_HTML          = NO
+GENERATE_HTML          = YES

 # The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
 # relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
@@ -1336,7 +1311,7 @@ HTML_STYLESHEET        =
 # documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.

-HTML_EXTRA_STYLESHEET  =
+HTML_EXTRA_STYLESHEET  = assets/doxygen-awesome-css/doxygen-awesome.css

 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note
@@ -2191,7 +2166,7 @@ MAN_LINKS              = NO
 # captures the structure of the code including all documentation.
 # The default value is: NO.

-GENERATE_XML           = YES
+GENERATE_XML           = NO

 # The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
 # relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
@@ -2328,7 +2303,7 @@ ENABLE_PREPROCESSING   = YES
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

-MACRO_EXPANSION        = YES
+MACRO_EXPANSION        = NO

 # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
 # the macro expansion is limited to the macros specified with the PREDEFINED and
@@ -2336,7 +2311,7 @@ MACRO_EXPANSION        = YES
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

-EXPAND_ONLY_PREDEF     = YES
+EXPAND_ONLY_PREDEF     = NO

 # If the SEARCH_INCLUDES tag is set to YES, the include files in the
 # INCLUDE_PATH will be searched if a #include is found.
@@ -2369,17 +2344,7 @@ INCLUDE_FILE_PATTERNS  =
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

-PREDEFINED             = IFC_PARSE_API= \
-                         IFC_SCHEMA_API= \
-                         IFC_GEOM_API= \
-                         IFC_GEOMLIBRARY_API= \
-                         IFC_GEOMSERIALIZATION_API= \
-                         SERIALIZERS_API= \
-                         "POSTFIX_SCHEMA(name)=name##_Schema" \
-                         "Handle(name):=opencascade::handle<name>" \
-                         kernel_=kernel \
-                         Simplekernel_=Simplekernel \
-                         inline=
+PREDEFINED             =

 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
 # tag can be used to specify a list of macro names that should be expanded. The
@@ -2388,22 +2353,7 @@ PREDEFINED             = IFC_PARSE_API= \
 # definition found in the source code.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

-EXPAND_AS_DEFINED      = kernel_ \
-                         cgal_shape \
-                         cgal_kernel \
-                         cgal_placement \
-                         cgal_point \
-                         cgal_direction \
-                         cgal_vector \
-                         cgal_plane \
-                         cgal_curve \
-                         cgal_wire \
-                         cgal_face \
-                         cgal_polyhedron \
-                         cgal_vertex_descriptor \
-                         cgal_face_descriptor \
-                         create_cube \
-                         create_polyhedron
+EXPAND_AS_DEFINED      =

 # If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
 # remove all references to function-like macros that are alone on a line, have
@@ -2781,6 +2731,15 @@ DOT_GRAPH_MAX_NODES    = 50

 MAX_DOT_GRAPH_DEPTH    = 0

+# Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = NO
+
 # If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
 # explaining the meaning of the various boxes and arrows in the dot generated
 # graphs.
@@ -1,56 +1,33 @@
 # IfcOpenShell C++ API documentation

-This directory contains the Sphinx, Doxygen, Breathe, and Exhale configuration
-for the IfcOpenShell C++ API reference. During a Sphinx build, Exhale runs
-Doxygen, Breathe consumes the generated XML, and Exhale creates the API pages.
-
-## Prerequisites
-
- Python 3.10 or newer
- [Doxygen](https://www.doxygen.nl/)
- [Graphviz](https://graphviz.org/)
-
-Install the Python dependencies from this directory:
-
-```shell
-python -m pip install -r requirements.txt
-```
-
-Both `doxygen` and `dot` must be available on `PATH`. For the standard Windows
-install locations, this can be done for the current PowerShell session with:
-
-```powershell
-$env:Path = "C:\Program Files\doxygen\bin;C:\Program Files\Graphviz\bin;$env:Path"
-```
+This folder contains the setup to build the IfcOpenShell C++ API documentation from the source code.

 ## Generating the documentation

-From this directory, run:
+> Prerequisites:
+> 
+> Make sure to have [Doxygen](https://www.doxygen.nl) and [Graphviz](https://graphviz.org) installed into your `$PATH` variable.
+> 
+> The documentation also use the [doxygen-awesome](https://jothepro.github.io/doxygen-awesome-css) theme as a git submodule.
+
+Build with the command (from within the `/docs/cpp-api` folder):

 ```shell
-python -m sphinx -M html . output -W --keep-going
+$ doxygen
 ```

-To include the current Git commit in Doxygen's project metadata, set
-`PROJECT_NUMBER` before building. For example, in PowerShell:
-
-```powershell
-$env:PROJECT_NUMBER = git rev-parse --short HEAD
-python -m sphinx -M html . output -W --keep-going
-```
-
-Or in a POSIX shell:
+To include the current git commit hash into the build documentation, use the following command:

 ```shell
-PROJECT_NUMBER=$(git rev-parse --short HEAD) python -m sphinx -M html . output -W --keep-going
+$ PROJECT_NUMBER=$(git rev-parse --short HEAD) doxygen
 ```

-Alternatively, configure the main CMake project with
-`-DBUILD_DOCUMENTATION=ON` and build the `cpp_api_docs` target.
+This will extract the current commit hash in short version and sets the propper ENV variable used by doxygen.

-The generated documentation is written to `output/html/index.html`. The
-generated Doxygen XML and Exhale sources are kept under `output/` as build
-artifacts.
+The generation of the documentation might take a while depending on your systems hardware, as it is configured to generate the Class graphs using .

-The generated headers under `src/ifcparse/schemas` are intentionally excluded
-from this documentation build.
+The resulting documentation is located unter `/cpp-api/output/html` and can be directly accessed with your browser:
+
+```shell
+$ open ./output/html/index.html
+```
@@ -1,59 +0,0 @@
-# This file was generated with the assistance of an AI coding tool.
-
-import warnings
-from pathlib import Path
-from shutil import rmtree
-
-from sphinx.deprecation import RemovedInSphinx90Warning
-
-warnings.filterwarnings("ignore", category=RemovedInSphinx90Warning, module=r"exhale\.configs")
-
-generated_directories = (
-    Path(__file__).parent / "output" / "api",
-    Path(__file__).parent / "output" / "doxygen",
-)
-for generated_directory in generated_directories:
-    if generated_directory.is_dir():
-        rmtree(generated_directory)
-
-project = "IfcOpenShell"
-copyright = "2020, IfcOpenShell"
-
-extensions = [
-    "breathe",
-    "exhale",
-]
-
-primary_domain = "cpp"
-highlight_language = "cpp"
-html_theme = "alabaster"
-
-breathe_projects = {
-    "IfcOpenShell": "./output/doxygen/xml",
-}
-breathe_default_project = "IfcOpenShell"
-
-exhale_args = {
-    "containmentFolder": "./output/api",
-    "rootFileName": "library_root.rst",
-    "rootFileTitle": "IfcOpenShell C++ API",
-    "doxygenStripFromPath": "../..",
-    "createTreeView": False,
-    "exhaleExecutesDoxygen": True,
-    "exhaleUseDoxyfile": True,
-}
-
-cpp_id_attributes = [
-    "IFC_PARSE_API",
-    "IFC_SCHEMA_API",
-    "IFC_GEOM_API",
-    "IFC_GEOMLIBRARY_API",
-    "IFC_GEOMSERIALIZATION_API",
-    "SERIALIZERS_API",
-]
-
-exclude_patterns = [
-    "output/doctrees",
-    "output/doxygen",
-    "output/html",
-]
@@ -1,9 +0,0 @@
-.. This file was generated with the assistance of an AI coding tool.
-
-IfcOpenShell C++ API
-====================
-
-.. toctree::
-   :maxdepth: 2
-
-   output/api/library_root
@@ -1,5 +0,0 @@
-# This file was generated with the assistance of an AI coding tool.
-
-Sphinx==8.1.3
-breathe==4.36.0
-exhale==0.3.7
@@ -1,8 +1,5 @@
 #!/usr/bin/python
 # /// script
-# dependencies = [
-#     "typing_extensions",
-# ]
 # ///
 ###############################################################################
 #                                                                             #
@@ -35,7 +32,6 @@ Example usage:
 Available arguments:
    ``-py-313`` - build for specific Python version
        (building for all supported Python version by default).
-    ``-occt-xxx`` - use a specific OCCT version (e.g. ``-occt-7.8.1``) instead of the default
    ``-wasm`` - compile for wasm
    ``-without-xxx`` - do not build dependency ``xxx`` (e.g. ``--without-swig``)
    ``-mac-cross-compile-intel`` - cross compile for Intel Mac on Apple Silicon host
@@ -43,8 +39,6 @@ Available arguments:
    ``-ifcopenshell-shared`` - build only IfcOpenShell's own libraries as shared
        (dependencies stay static). Redundant if ``-shared`` is also passed.
    ``-diskcleanup`` - clean up build directories after finishing building dependencies
-    ``-build-examples`` - build IfcOpenShell examples
-    ``-lto`` - enable link-time optimization (adds ``-flto`` to compiler flags)
    ``-v`` - enable verbose logs


@@ -137,8 +131,6 @@ from pathlib import Path
 from typing import Literal
 from urllib.request import urlretrieve

-from typing_extensions import assert_never
-
 logger = logging.getLogger(__name__)
 logger.setLevel(logging.INFO)
 ch = logging.StreamHandler()
@@ -225,11 +217,6 @@ def cecho(message, color=NO_COLOR):


 # Flags.
-BUILD_EXAMPLES = "build-examples" in flags
-DISK_CLEANUP = "diskcleanup" in flags
-LTO = "lto" in flags
-VERBOSE = "v" in flags
-
 APPLE = platform.system() == "Darwin"
 MAC_CROSS_COMPILE_INTEL = "mac-cross-compile-intel" in flags
 assert platform.system() == "Darwin" or not MAC_CROSS_COMPILE_INTEL
@@ -385,7 +372,7 @@ def gather_dependencies(dep: str) -> Generator[str]:
                yield x


-if VERBOSE:
+if "v" in flags:
    logger.setLevel(logging.DEBUG)
    formatter = logging.Formatter("%(asctime)s - %(levelname)s - %(message)s")
    ch.setFormatter(formatter)
@@ -445,6 +432,7 @@ if WASM:
    SKIP_TARGETS_FOR_WASM = {
        "rocksdb",
        "opencollada",
+        "swig",
        "pcre",
        "IfcGeom",
        "IfcConvert",
@@ -466,8 +454,12 @@ bison = "bison"

 missing_commands: list[str] = []
 required_commands = [git, bunzip2, tar, cc, cplusplus, autoconf, automake, make, "patch", "cmake", yacc, xz, bison]
-if WASM:
+if "wasm" in flags:
+    # Skip swig build for WASM.
+    required_commands.append("swig")
    required_commands.append("pyodide")
+    required_commands.remove(yacc)
+    required_commands.remove(bison)
 if platform.system() == "Linux" and "BonsaiViewer" in targets:
    required_commands.append("patchelf")

@@ -584,7 +576,7 @@ def run_autoconf(dependency_name: str, configure_args: list[str], cwd: str) -> N
    prefix = os.path.realpath(f"{DEPS_DIR}/install/{dependency_name}")

    wasm = []
-    if WASM:
+    if "wasm" in flags:
        wasm.append("emconfigure")

    run(
@@ -592,7 +584,7 @@ def run_autoconf(dependency_name: str, configure_args: list[str], cwd: str) -> N
            *wasm,
            "/bin/sh",
            "../configure",
-            *(["--host=wasm32"] if WASM and not any(s.startswith("--host") for s in configure_args) else []),
+            *(["--host=wasm32"] if "wasm" in flags and not any(s.startswith("--host") for s in configure_args) else []),
            *configure_args,
            f"--prefix={prefix}",
        ],
@@ -600,20 +592,18 @@ def run_autoconf(dependency_name: str, configure_args: list[str], cwd: str) -> N
    )


-def run_cmake(
-    name, cmake_args: list[str], cmake_dir: str | None = None, cwd: str | None = None, native: bool = False
-) -> None:
+def run_cmake(arg1, cmake_args: list[str], cmake_dir: str | None = None, cwd: str | None = None):
    if cmake_dir is None:
        P = ".."
    else:
        P = cmake_dir

    wasm = []
-    if WASM and not native:
+    if "wasm" in flags:
        wasm.append("emcmake")

    cmake_flags: list[str] = []
-    if not native and (not WASM or not WASM_CMAKE_IS_USING_INIT_VARS):
+    if not WASM or not WASM_CMAKE_IS_USING_INIT_VARS:
        # For WASM we provide flags using just environment variables.
        # If we provide them using cmake vars, it will override emscripten toolchain flags.
        # Unsure if we need this in general even for non-WASM builds.
@@ -629,10 +619,6 @@ def run_cmake(
            f"-DBUILD_SHARED_LIBS={OFF_ON[not BUILD_STATIC]}",
        )

-    if WASM and native:
-        # Override emscripten cmake toolchain coming from environment variable.
-        cmake_flags.append("-DCMAKE_TOOLCHAIN_FILE=")
-
    run(
        [
            *wasm,
@@ -641,7 +627,7 @@ def run_cmake(
            *cmake_flags,
            *cmake_args,
            f"-DCMAKE_BUILD_TYPE={BUILD_CFG}",
-            *([] if native else [f"-DCMAKE_SHARED_LINKER_FLAGS={os.environ['LDFLAGS']}"]),
+            f"-DCMAKE_SHARED_LINKER_FLAGS={os.environ['LDFLAGS']}",
        ],
        cwd=cwd,
    )
@@ -689,7 +675,7 @@ def build_dependency(
    additional_files: dict[str, str] | None = None,
    no_append_name=False,
    cmake_dir=None,
-    cmake_native: bool = False,
+    **kwargs,
 ) -> None:
    """Handles building of dependencies with different tools (which are
    distinguished with the `mode` argument. `build_tool_args` is expected to be
@@ -698,8 +684,7 @@ def build_dependency(

    :param pre_compile_subs: A sequence of ``(fn, before, after)``
    :param additional_files: Mapping path->url.
-    :param cmake_native: For ``mode="cmake"``, force a native (host) build
-        even when building for WASM. Needed for build-time tools like swig.
+    :param kwargs: Additional ``mode`` related kwargs.
    """
    check_dir = os.path.join(DEPS_DIR, "install", name)
    if os.path.exists(check_dir):
@@ -735,7 +720,7 @@ def build_dependency(
        logger.info(f"\rChecking {name}...   ")
        git_clone_or_pull_repository(download_url, target_dir=os.path.join(build_dir, download_name), revision=revision)
    else:
-        assert_never(download_tool)
+        raise ValueError(f"download tool '{download_tool}' is not supported")
    download_dir = os.path.join(build_dir, download_name)

    if os.path.isdir(download_dir):
@@ -796,9 +781,9 @@ def build_dependency(
        if mode == "autoconf":
            run_autoconf(name, build_tool_args, cwd=extract_build_dir)
        elif mode == "cmake":
-            run_cmake(name, build_tool_args, cwd=extract_build_dir, native=cmake_native)
+            run_cmake(name, build_tool_args, cwd=extract_build_dir)
        else:
-            assert_never(mode)
+            raise ValueError()
        for fn, before, after in pre_compile_subs:
            with open(os.path.join(extract_dir, fn), "r") as f:
                s = f.read()
@@ -814,14 +799,14 @@ def build_dependency(
        logger.info(f"\rConfiguring {name}...")
        run([bash, "./bootstrap.sh"], cwd=extract_dir)
        logger.info(f"\rBuilding {name}...   ")
-        run(["./b2", f"-j{IFCOS_NUM_BUILD_PROCS}"] + build_tool_args, cwd=extract_dir, can_fail=WASM)
+        run(["./b2", f"-j{IFCOS_NUM_BUILD_PROCS}"] + build_tool_args, cwd=extract_dir, can_fail="wasm" in flags)
        logger.info(f"\rInstalling {name}... ")
        shutil.copytree(
            os.path.join(extract_dir, "boost"), os.path.join(DEPS_DIR, "install", f"boost-{BOOST_VERSION}", "boost")
        )
        logger.info(f"\rInstalled {name}     \n")

-    if DISK_CLEANUP:
+    if "diskcleanup" in flags:
        shutil.rmtree(build_dir, ignore_errors=True)


@@ -927,7 +912,7 @@ ADDITIONAL_ARGS_STR = " ".join(ADDITIONAL_ARGS)

 CXXFLAGS_MINIMAL = f"{CXXFLAGS} {PIC} {ADDITIONAL_ARGS_STR}"
 CFLAGS_MINIMAL = f"{CFLAGS} {PIC} {ADDITIONAL_ARGS_STR}"
-if WASM:
+if "wasm" in flags:
    # WASM `SIDE_MODULE_` are absorbed by `emcmake` automatically.
    CXXFLAGS = CXXFLAGS_MINIMAL
    CFLAGS = CFLAGS_MINIMAL
@@ -948,7 +933,7 @@ else:
        CFLAGS = CFLAGS_MINIMAL
    LDFLAGS = f"{LDFLAGS} {ADDITIONAL_ARGS_STR}"

-if LTO:
+if "lto" in flags:
    for f in compiler_flags:
        locals()[f] += f" -flto={IFCOS_NUM_BUILD_PROCS}"

@@ -1025,7 +1010,6 @@ if "swig" in targets:
        download_name="swig",
        download_tool=download_tool_git,
        revision=f"v{SWIG_VERSION}",
-        cmake_native=WASM,
    )

 if USE_OCCT and "occ" in targets:
@@ -1036,13 +1020,13 @@ if USE_OCCT and "occ" in targets:

    # Skip ExpToCasExe as we don't need it and it requires additional dependencies.
    # Before 7.7.2 ExpToCasExe is part of DataExchange, DETools doesn't exist yet.
-    # Since we do need DataExchange (used for iges_serializer), we use a patch to skip only ExpToCasExe.
+    # Since we do need DataExchange (used for IgesSerializer), we use a patch to skip only ExpToCasExe.
    if "7.7.2" > OCCT_VERSION >= "7.7":
        patches.append("./patches/occt/no_ExpToCasExe.patch")
    elif OCCT_VERSION >= "7.7.2":
        occt_args.append("-DBUILD_MODULE_DETools=OFF")

-    if WASM:
+    if "wasm" in flags:
        patches.append("./patches/occt/no_em_js.patch")

    build_dependency(
@@ -1126,7 +1110,7 @@ if "libxml2" in targets:
        "--without-iconv",
        "--without-lzma",
    ]
-    if WASM:
+    if "wasm" in flags:
        build_tool_args.append("--without-threads")
    build_dependency(
        f"libxml2-{LIBXML2_VERSION}",
@@ -1148,7 +1132,7 @@ if "OpenCOLLADA" in targets:
    # whether shared libs were actually built. We make it follow `USE_SHARED` instead.
    patches.append("./patches/opencollada/config_select_libs_by_use_shared.patch")

-    if WASM:
+    if "wasm" in flags:
        # This is necessary for the WASM build, because recent versions of
        # clang don't have the tr1:: namespace anymore. However, it breaks
        # some versions of gcc (9.4.0 at least) due to specializing std::hash
@@ -1178,7 +1162,7 @@ if "OpenCOLLADA" in targets:
        revision=OPENCOLLADA_VERSION,
    )

-if "python" in targets and not USE_CURRENT_PYTHON_VERSION and not WASM:
+if "python" in targets and not USE_CURRENT_PYTHON_VERSION and "wasm" not in flags:
    # Python should not be built with -fvisibility=hidden, from experience that introduces segfaults
    OLD_CPP_FLAGS = os.environ["CPPFLAGS"]
    OLD_CXX_FLAGS = os.environ["CXXFLAGS"]
@@ -1239,7 +1223,7 @@ if "python" in targets and not USE_CURRENT_PYTHON_VERSION and not WASM:
 if "boost" in targets:
    str_concat = lambda prefix: lambda postfix: "" if postfix.strip() == "" else "=".join((prefix, postfix.strip()))
    toolset = []
-    if WASM:
+    if "wasm" in flags:
        toolset.append("toolset=emscripten")
    build_dependency(
        f"boost-{BOOST_VERSION}",
@@ -1267,7 +1251,7 @@ if "boost" in targets:
        # patch="./patches/boost/boostorg_regex_62.patch",
        download_name=f"boost-{BOOST_VERSION}-b2-nodocs.tar.gz",
    )
-    if WASM:
+    if "wasm" in flags:
        # only supported on nix for now
        run(
            ("find", ".", "-name", "*.bc", "-exec", "bash", "-c", "emar q ${1%.bc}.a $1", "bash", "{}", ";"),
@@ -1309,7 +1293,9 @@ if "cgal" in targets:
        name=f"gmp-{GMP_VERSION}",
        mode="autoconf",
        build_tool_args=[ENABLE_FLAG, DISABLE_FLAG, "--with-pic", *gmp_args],
-        pre_compile_subs=([("build/config.h", "HAVE_OBSTACK_VPRINTF 1", "HAVE_OBSTACK_VPRINTF 0")] if WASM else []),
+        pre_compile_subs=(
+            [("build/config.h", "HAVE_OBSTACK_VPRINTF 1", "HAVE_OBSTACK_VPRINTF 0")] if "wasm" in flags else []
+        ),
        patch=gmp_patches,
        # Sometimes ftp.gnu.org is very slow, use ftpmirror.gnu.org as a workaround.
        download_url="https://ftpmirror.gnu.org/gnu/gmp/",
@@ -1441,7 +1427,7 @@ os.makedirs(ifcos_build_dir, exist_ok=True)

 cmake_args = [
    "-DUSE_MMAP=OFF",
-    f"-DBUILD_EXAMPLES={OFF_ON[BUILD_EXAMPLES]}",
+    "-DBUILD_EXAMPLES=OFF",
    "-DBUILD_SHARED_LIBS=" + OFF_ON[not IFCOPENSHELL_STATIC],
    "-DGLTF_SUPPORT=ON",
    "-DBoost_NO_BOOST_CMAKE=On",
@@ -1471,7 +1457,7 @@ def get_cmake_args_prefix_path(additional_paths: Sequence[str] = ()) -> list[str
        return [f"-DCMAKE_PREFIX_PATH={prefix_path}"]


-if WASM:
+if "wasm" in flags:
    # Boost is built by the build script so should not be found
    # inside of the sysroot set by the emscriptem toolchain
    cmake_args.append("-DWASM_BUILD=On")
@@ -1537,10 +1523,7 @@ if "rocksdb" in targets:
    )

 if "swig" in targets:
-    # `cmake_args_prefix_path` won't work on wasm
-    # because `find_program` in emscripten toolchain don't use `find_root_path`.
-    # As a workaround we provide executable path directly on all platforms.
-    cmake_args.append(f"-DSWIG_EXECUTABLE={DEPS_DIR}/install/swig-{SWIG_VERSION}/bin/swig")
+    cmake_args_prefix_path.append(f"{DEPS_DIR}/install/swig-{SWIG_VERSION}")

 if os.environ.get("QT_DIR"):
    cmake_args_prefix_path.append(os.environ["QT_DIR"])
@@ -1652,7 +1635,7 @@ if "IfcOpenShell-Python" in targets:
            if platform.system() != "Darwin":
                if BUILD_CFG == "Release":
                    for so in glob.glob(os.path.join(module_dir, "*.so")):
-                        if WASM:
+                        if "wasm" in flags:
                            run(["wasm-strip", so, "-k", "dylink.0"])
                        elif os.path.basename(so).startswith("_ifcopenshell_wrapper"):
                            # TODO: This symbol name depends on the Python version?
@@ -1662,7 +1645,7 @@ if "IfcOpenShell-Python" in targets:

            return module_dir

-    if WASM:
+    if "wasm" in flags:
        compile_python_wrapper(
            run(["pyodide", "config", "get", "python_version"]),
            run(["pyodide", "config", "get", "python_include_dir"]),
@@ -28,11 +28,8 @@ since it's pure cmake without any additional moving parts.
 - clone IfcOpenShell repo next to it to `IfcOpenShell` folder
 - run `python nix/build-all.py -wasm -py-313` in `IfcOpenShell`
    - it will produce Python package in `IfcOpenShell/ifcopenshell`
- run `python pyodide/build-all-pack-wheel-local.py`, it will
-    - clean up previous wheels
-    - run `pyodide build`
-    - prepare standalone and modular wheels
-    - produce final wheels in `IfcOpenShell/dist` and `IfcOpenshell/dist-modular`
+- run `pyodide build`
+    - it will produce a wheel in `IfcOpenShell/dist`
 - testing:
  - ensure you're in pyodide environment
  - `cd IfcOpenshell/pyodide`
@@ -1,38 +0,0 @@
-#!/usr/bin/env python3
-"""Intended to be run after nix/build-all.py has finished the wasm build."""
-import shutil
-import subprocess
-from pathlib import Path
-
-
-def get_repo_root() -> Path:
-    output = subprocess.check_output(["git", "rev-parse", "--show-toplevel"], text=True)
-    return Path(output.strip())
-
-
-def run(cmd: list[str], **kwargs) -> None:
-    print("$", " ".join(cmd))
-    subprocess.check_call(cmd, **kwargs)
-
-
-def main() -> None:
-    repo_root = get_repo_root()
-
-    shutil.rmtree(repo_root / "dist", ignore_errors=True)
-    shutil.rmtree(repo_root / "dist_modular", ignore_errors=True)
-    run(["pyodide", "build"], cwd=repo_root)
-    shutil.rmtree(repo_root / "ifcopenshell", ignore_errors=True)
-    (repo_root / "setup.py").unlink(missing_ok=True)
-    run(["git", "restore", "pyproject.toml"], cwd=repo_root)
-
-    wheel = next((repo_root / "dist").glob("ifcopenshell-*.whl"))
-
-    run(["uv", "run", "pyodide/order_pyodide_wheel_shared_objects.py", str(wheel)], cwd=repo_root)
-    run(
-        ["uv", "run", "pyodide/split_pyodide_ifcopenshell_wheel.py", str(wheel), "dist-modular/"],
-        cwd=repo_root,
-    )
-
-
-if __name__ == "__main__":
-    main()
@@ -1,8 +1,10 @@
 #!/usr/bin/bash
 set -ex

-PYODIDE_VERSION=0.29.4
-SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+PYODIDE_VERSION=0.29.3
+PYODIDE_BUILD_VERSION=0.33.0
+PYODIDE_XBUILDENV_ROOT="${HOME}/.cache/.pyodide-xbuildenv-${PYODIDE_BUILD_VERSION}"
+PYODIDE_XBUILDENV="${PYODIDE_XBUILDENV_ROOT}/${PYODIDE_VERSION}"

 # Script is assuming that it will be possible to execute it multiple times
 # therefore we're clearing venv each time and ignoring existing 'emsdk' folder.
@@ -14,14 +16,12 @@ source .venv/bin/activate

 # Install pyodide cross build environment.
 # Instructions: https://pyodide.org/en/stable/development/building-packages.html
-uv pip install -r "${SCRIPT_DIR}/requirements.txt"
+uv pip install "pyodide-build==${PYODIDE_BUILD_VERSION}"
 # `uv run` is required, so xbuildenv would skip using `pip`.
 uv run pyodide xbuildenv install "${PYODIDE_VERSION}"
 uv run pyodide xbuildenv install-emscripten

-# Cache path includes a hash segment that varies by pyodide-build version,
-# so query it instead of constructing it manually.
-EMSDK_ROOT=$(uv run pyodide config get emsdk_dir)
+EMSDK_ROOT="${PYODIDE_XBUILDENV}/emsdk"
 [ -f "${EMSDK_ROOT}/emsdk_env.sh" ] && source "${EMSDK_ROOT}/emsdk_env.sh"
 [ -f "${EMSDK_ROOT}/../../emsdk_env.sh" ] && source "${EMSDK_ROOT}/../../emsdk_env.sh"
 which emcc
@@ -29,10 +29,8 @@ emcc --version

 mkdir -p packages/ifcopenshell
 VERSION=`cat IfcOpenShell/VERSION`
-# Normalize to the canonical PEP 440 form (e.g. 0.9.0alpha0 -> 0.9.0a0).
-VERSION=`python3 -c "from packaging.version import Version; print(Version('$VERSION'))"`
 cp IfcOpenShell/pyodide/meta.yaml packages/ifcopenshell
-sed -i s/9.9.9/$VERSION/g packages/ifcopenshell/meta.yaml
+sed -i s/0.8.0/$VERSION/g packages/ifcopenshell/meta.yaml

 # Use custom build ifcopenshell directory in build-all to make caching simpler
 # Otherwise pyodide build path typically includes package version, so cached cmake configs might break.
@@ -1,7 +1,6 @@
 package:
  name: ifcopenshell
-  # Placeholder, replaced by build_pyodide.sh with the actual version from VERSION file.
-  version: 9.9.9
+  version: 0.8.0

 source:
  # meta.yaml is placed as `packages/ifcopenshell/meta.yaml`.
@@ -34,10 +34,10 @@ SCHEMA_ORDER = {
 }

 MAIN_SHARED_OBJECT_RE = re.compile(r"^_ifcopenshell_wrapper(?:\.|$)")
-SCHEMA_PLUGIN_RE = re.compile(r"^ifcopenshell_parse_schema_(.+)\.so$")
-MAPPING_PLUGIN_RE = re.compile(r"^ifcopenshell_geometry_mapping_(.+)\.so$")
-DOCUMENT_PLUGIN_RE = re.compile(r"^ifcopenshell_document_[a-z0-9]+(?:_(.+))?\.so$")
-GEOMETRY_SERIALIZATION_PLUGIN_RE = re.compile(r"^ifcopenshell_geometry_writer_(.+)\.so$")
+SCHEMA_PLUGIN_RE = re.compile(r"^ifcopenshell\.parse\.schema\.([^.]+)\.so$")
+MAPPING_PLUGIN_RE = re.compile(r"^ifcopenshell\.geometry\.mapping\.([^.]+)\.so$")
+DOCUMENT_PLUGIN_RE = re.compile(r"^ifcopenshell\.document\.[^.]+\.([^.]+)\.so$")
+GEOMETRY_SERIALIZATION_PLUGIN_RE = re.compile(r"^ifcopenshell\.geometry\.serialization\.([^.]+)\.so$")


 def schema_key(schema: str) -> tuple[int, str]:
@@ -1 +0,0 @@
-pyodide-build==0.39.0
@@ -63,30 +63,20 @@ select = [
    #
    "FA",          # future annotations
    "UP",          # pyupgrade
-    "unnecessary-iterable-allocation-for-first-element",
-    "unsorted-dunder-all",
+    "RUF015",      # next() > list_comprehension[0]
+    "RUF022",      # sort __all__
    "I",           # import sorting
-    "unused-noqa",
-    "rule-codes-in-selectors",
-    "noqa-comments",
-    "rule-codes-in-suppression-comments",
-    # General util rules.
-    "invalid-rule-code",
-    "redirected-noqa",
-    "invalid-pyproject-toml",
-    "invalid-suppression-comment",
 ]
 ignore = [
-    # Conflicts with Blender using annotations for props definitions.
-    "future-rewritable-type-annotation",
+    "FA100", # Conflicts with Blender using annotations for props definitions.
    # Maybe will enable later:
-    "non-pep604-annotation-union", # Union[X,Y] to X | Y
-    "non-pep604-annotation-optional", # Optional to X | None
-    "redundant-open-modes", # Unnecessary mode argument
-    "yield-in-for-loop", # yield for -> yield from
-    "format-literals", # implicit references for positional format fields
-    "printf-string-formatting", # Replace % with .format
-    "f-string", # Replace .format with f-string
+    "UP007", # Union[X,Y] to X | Y
+    "UP045", # Optional to X | None
+    "UP015", # Unnecessary mode argument
+    "UP028", # yield for -> yield from
+    "UP030", # implicit references for positional format fields
+    "UP031", # Replace % with .format
+    "UP032", # Replace .format with f-string
 ]

 [tool.ty.rules]
@@ -10,7 +10,7 @@ name = "bcf-client"
 # author = "IfcOpenShell"
 description = "BCF-XML file handler."
 readme = "README.md"
-requires-python = ">=3.10"
+requires-python = ">=3.8"
 keywords = ["IFC", "BCF", "BIM"]
 dependencies = [
    "xsdata>=24.4",
@@ -65,6 +65,6 @@ commands = pytest --cov --cov-report=term tests

 [tool.ruff]
 extend = "../../pyproject.toml"
-lint.extend-select = [
-  "unused-import",  # unused imports
+lint.select = [
+  "F401",  # unused imports
 ]
@@ -42,12 +42,10 @@ endif

 IS_STABLE:=FALSE
 VERSION:=$(shell cat ../../VERSION)
-VERSION_BASE:=$(shell sed -E 's/[[:alpha:]]+[0-9]+$$//' ../../VERSION)
-VERSION_PYTHON:=$(shell sed 's/alpha/a/' ../../VERSION)
-VERSION_SEMVER:=$(shell sed -E 's/([[:alpha:]]+)([0-9]+)$$/-\\1\\2/' ../../VERSION)
+VERSION_MAJOR:=$(shell cat '../../VERSION' | cut -d '.' -f 1)
+VERSION_MINOR:=$(shell cat '../../VERSION' | cut -d '.' -f 2)
+VERSION_PATCH:=$(shell cat '../../VERSION' | cut -d '.' -f 3)
 VERSION_DATE:=$(shell date '+%y%m%d')
-VERSION_DAILY:=$(VERSION_BASE)a$(VERSION_DATE)
-VERSION_SEMVER_DAILY:=$(VERSION_BASE)-alpha$(VERSION_DATE)
 LAST_COMMIT_HASH:=$(shell git rev-parse HEAD)
 LAST_COMMIT_DATE:=$(shell git show -s --format=%cI)
 LAST_GIT_BRANCH:=$(shell git rev-parse --abbrev-ref HEAD)
@@ -262,14 +260,14 @@ endif

 	cp pyproject.toml build/
 ifeq ($(IS_STABLE), TRUE)
-	$(SED) "s/0.0.0/$(VERSION_SEMVER)/" build/bonsai/blender_manifest.toml
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_PYTHON)"/' build/pyproject.toml
+	$(SED) "s/0.0.0/$(VERSION)/" build/bonsai/blender_manifest.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/pyproject.toml
 else
-	$(SED) "s/0.0.0/$(VERSION_SEMVER_DAILY)/" build/bonsai/blender_manifest.toml
+	$(SED) "s/0.0.0/$(VERSION)-alpha$(VERSION_DATE)/" build/bonsai/blender_manifest.toml
 	$(SED) "s/8888888/$(LAST_COMMIT_HASH)/" build/bonsai/__init__.py
 	$(SED) "s/9999999/$(LAST_COMMIT_DATE)/" build/bonsai/__init__.py
 	$(SED) "s/7777777/$(LAST_GIT_BRANCH)/" build/bonsai/__init__.py
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_DAILY)"/' build/pyproject.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/pyproject.toml
 endif

 # Blender 5.1+ requires Python 3.13.
@@ -281,9 +279,9 @@ endif

 	# Provides bonsai Add-on functionality
 ifeq ($(IS_STABLE), TRUE)
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_PYTHON)"/' build/pyproject.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/pyproject.toml
 else
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_DAILY)"/' build/pyproject.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)a$(VERSION_DATE)"/' build/pyproject.toml
 endif
 	cd build && . env/$(VENV_ACTIVATE) && $(PYTHON) -m build
 	cp build/dist/*.whl build/wheels/
@@ -317,9 +315,9 @@ endif
 	rm -rf build/bonsai/libs/

 ifeq ($(IS_STABLE), TRUE)
-	cd build && zip -r bonsai_$(PYVERSION)-$(VERSION_SEMVER)-$(BLENDER_PLATFORM).zip ./bonsai
+	cd build && zip -r bonsai_$(PYVERSION)-$(VERSION)-$(BLENDER_PLATFORM).zip ./bonsai
 else
-	cd build && zip -r bonsai_$(PYVERSION)-$(VERSION_SEMVER_DAILY)-$(BLENDER_PLATFORM).zip ./bonsai
+	cd build && zip -r bonsai_$(PYVERSION)-$(VERSION)-alpha$(VERSION_DATE)-$(BLENDER_PLATFORM).zip ./bonsai
 endif

 	mv build/bonsai*.zip dist/
@@ -185,10 +185,13 @@ class IfcStore:
            os.makedirs(os.path.dirname(cache_path), exist_ok=True)
            IfcStore.cache_path = cache_path
            cache_path = Path(IfcStore.cache_path)
-            settings = ifcopenshell.geom.settings()
+            cache_settings = ifcopenshell.geom.settings()
+            serializer_settings = ifcopenshell.geom.serializer_settings()
            cache_preexists = cache_path.exists()
            try:
-                IfcStore.cache = ifcopenshell.geom.serializers.hdf5(IfcStore.cache_path, settings)
+                IfcStore.cache = ifcopenshell.geom.serializers.hdf5(
+                    IfcStore.cache_path, cache_settings, serializer_settings
+                )
                if cache_preexists:
                    print(f"Successfully loaded existing cache: {cache_path.name}.")
                else:
@@ -203,7 +206,9 @@ class IfcStore:

                os.remove(IfcStore.cache_path)
                try:
-                    IfcStore.cache = ifcopenshell.geom.serializers.hdf5(IfcStore.cache_path, settings)
+                    IfcStore.cache = ifcopenshell.geom.serializers.hdf5(
+                        IfcStore.cache_path, cache_settings, serializer_settings
+                    )
                    print("New cache was created.")
                except Exception as e:
                    print(f"Failed to create a cache: {str(e)}.")
@@ -740,7 +740,7 @@ class IfcImporter:
                self.update_progress((percent_average / 100 * progress_range) + start_progress)
            shape = iterator.get()
            if shape:
-                assert isinstance(shape, W.triangulation_element)
+                assert isinstance(shape, W.TriangulationElement)
                product = self.file.by_id(shape.id)
                self.create_product(product, shape)
                results.add(product)
@@ -1079,9 +1079,9 @@ class IfcImporter:
    def create_curve(
        self,
        element: ifcopenshell.entity_instance,
-        shape: Union[W.triangulation, W.triangulation_element],
+        shape: Union[W.Triangulation, W.TriangulationElement],
    ) -> bpy.types.Curve:
-        if isinstance(shape, W.triangulation_element):
+        if isinstance(shape, W.TriangulationElement):
            geometry = shape.geometry
        else:
            geometry = shape
@@ -1112,11 +1112,11 @@ class IfcImporter:
    def create_mesh(
        self,
        element: ifcopenshell.entity_instance,
-        shape: Union[W.triangulation, W.triangulation_element],
+        shape: Union[W.Triangulation, W.TriangulationElement],
        cartesian_point_offset: Union[npt.NDArray[np.float64], Literal[False]] = None,
    ) -> Union[bpy.types.Mesh, None]:
        try:
-            if isinstance(shape, W.triangulation_element):
+            if isinstance(shape, W.TriangulationElement):
                # shape is ShapeElementType
                geometry = shape.geometry
            else:
@@ -678,7 +678,7 @@ class AddBoundary(bpy.types.Operator, tool.Ifc.Operator):

        # Identify all potential building elements
        # TODO: don't select everything, use AABB culling in Blender
-        building_elements = list(
+        building_elements = (
            tool.Ifc.get().by_type("IfcWall")
            + tool.Ifc.get().by_type("IfcSlab")
            + tool.Ifc.get().by_type("IfcVirtualElement")
@@ -708,7 +708,7 @@ class AddBoundary(bpy.types.Operator, tool.Ifc.Operator):
            while True:
                tree.add_element(iterator.get_native())
                shape = iterator.get()
-                assert isinstance(shape, W.triangulation_element)
+                assert isinstance(shape, W.TriangulationElement)
                shapes[shape.id] = {
                    "verts": ifcopenshell.util.shape.get_vertices(shape.geometry),
                    "faces": ifcopenshell.util.shape.get_faces(shape.geometry),
@@ -348,7 +348,10 @@ class AddClassificationReference(bpy.types.Operator, tool.Ifc.Operator):

    def _execute(self, context):
        if self.obj_type == "Object":
-            objects = [o.name for o in tool.Blender.get_selected_objects()]
+            if context.selected_objects:
+                objects = [o.name for o in context.selected_objects]
+            else:
+                objects = [context.active_object.name]
        else:
            objects = [self.obj]
        props = tool.Classification.get_classification_props()
@@ -516,7 +516,7 @@ def _world_segment_to_screen_pixels(
 # ---------------------------------------------------------------------------


-class BIM_GT_box_face_quad(bpy.types.Gizmo):
+class BIM_GT_box_face_quad(bpy.types.Gizmo):  # noqa: N801 — Blender bl_idname convention
    """Near-invisible face-quad click target with drag-to-resize modal.

    Geometry: a unit quad in the local XY plane at z=0. The adapter
@@ -620,7 +620,7 @@ class BIM_GT_box_face_quad(bpy.types.Gizmo):
        return {"RUNNING_MODAL"}


-class BIM_GT_box_face_outline(bpy.types.Gizmo):
+class BIM_GT_box_face_outline(bpy.types.Gizmo):  # noqa: N801 — Blender bl_idname convention
    """Thin non-interactive colored edge outline for one face.

    Drawn as 4 line segments in the face plane. The layout helper
@@ -160,7 +160,7 @@ def _make_face_set_cb(gz: Any, group: Any, axis: int, is_max: bool):
    return setter


-class OBJECT_GGT_bim_clip_box(bpy.types.GizmoGroup):
+class OBJECT_GGT_bim_clip_box(bpy.types.GizmoGroup):  # noqa: N801 — Blender bl_idname convention
    """Face-quad resize handles on the active clip box.

    Renders six near-invisible click-target quads and six colored edge
@@ -987,7 +987,7 @@ class ExportCostSchedulesToPDF(bpy.types.Operator, ExportHelper):
    @classmethod
    def poll(cls, context):
        try:
-            import typst  # ruff: ignore[unused-import]
+            import typst  # noqa: F401

            return True
        except ModuleNotFoundError:
@@ -313,7 +313,7 @@ class CreateAllShapes(bpy.types.Operator):
                    failures.append(element)
                    print("***** FAILURE *****")
            if shape:
-                assert isinstance(shape, W.triangulation_element)
+                assert isinstance(shape, W.TriangulationElement)
                geom = shape.geometry
                print(
                    f"Success {time.time() - start:.3f}s "
@@ -28,7 +28,7 @@ operators via ``target_set_operator``; drag handles inherit modal state
 from ``GizmoMovable``.
 """

-__all__ = [  # ruff: ignore[unsorted-dunder-all]
+__all__ = [  # noqa: RUF022 (unsorted `__all__`)
    "GizmoColor",
    "GizmoAxis",
    "TextAlignment",
@@ -5660,7 +5660,7 @@ class BaseParametricGizmoGroup:
        """
        return 0.0

-    def _update_view_dependent_dimensions(self, context: bpy.types.Context, mw: Matrix, props) -> None:
+    def _update_view_dependent_dimensions(self, context: bpy.types.Context, mw: Matrix, props) -> None:  # noqa: ARG002
        """Update overall_width, overall_height, and lining_offset based on view direction.

        This base implementation handles the common pattern for door/window gizmos.
@@ -5837,7 +5837,7 @@ class BaseParametricGizmoGroup:
        self.update_dimension_gizmos(mw, props)
        self._refresh_element_specific(context, mw, props)

-    def _refresh_element_specific(self, context: bpy.types.Context, mw: "Matrix", props) -> None:
+    def _refresh_element_specific(self, context: bpy.types.Context, mw: "Matrix", props) -> None:  # noqa: ARG002
        """Override for element-specific refresh logic.

        Called from both refresh() (on state change) and draw_prepare() (per frame),
@@ -6344,7 +6344,7 @@ class BaseParametricGizmoGroup:
        """
        return (0.0, 0.0)

-    def get_icon_y_offset(self, context: bpy.types.Context, mw: Matrix) -> float:
+    def get_icon_y_offset(self, context: bpy.types.Context, mw: Matrix) -> float:  # noqa: ARG002
        """Get Y offset for icons based on view direction.

        Uses get_icon_y_extent() to determine how far to offset icons based on
@@ -6546,7 +6546,9 @@ class BaseParametricGizmoGroup:

        self._refresh_element_specific(context, mw, props)

-    def _update_dimension_gizmo_positions(self, context: bpy.types.Context, mw: "Matrix", props) -> None:
+    def _update_dimension_gizmo_positions(
+        self, context: bpy.types.Context, mw: "Matrix", props  # noqa: ARG002
+    ) -> None:
        """Update dimension gizmo positions based on view direction.

        Override this method in subclasses to implement view-dependent
@@ -1406,28 +1406,31 @@ class CreateDrawing(bpy.types.Operator):
            # Backwards compatibility with older ifcopenshell builds that don't expose these keys.
            pass
        self.svg_buffer = ifcopenshell.geom.serializers.buffer()
-        self.svg_settings.set("svg-without-storeys", True)
-        self.svg_settings.set("svg-write-poly", True)
-        self.svg_settings.set("svg-poly", True)
+        self.serialiser_settings = ifcopenshell.geom.serializer_settings()
+        self.serialiser_settings.set("svg-without-storeys", True)
+        self.serialiser_settings.set("svg-write-poly", True)
+        self.serialiser_settings.set("svg-poly", True)
        # Objects with more than these edges are rendered as wireframe instead of HLR for optimisation
-        self.svg_settings.set("profile-threshold", 10000)
-        self.svg_settings.set("svg-xmlns", True)
-        self.svg_settings.set("svg-project", True)
-        self.svg_settings.set("auto-elevation", False)
-        self.svg_settings.set("auto-section", False)
-        self.svg_settings.set("print-space-names", False)
-        self.svg_settings.set("print-space-areas", False)
-        self.svg_settings.set("door-arcs", False)
-        self.svg_settings.set("svg-no-css", True)
-        self.svg_settings.set("elevation-ref-guid", self.camera_element.GlobalId)
-        self.svg_settings.set("scale", str(self.scale))
-        self.svg_settings.set("svg-subtract-before", "always")
-        self.svg_settings.set("svg-prefilter", True)  # See #3359
-        self.svg_settings.set("svg-unify-inputs", True)
-        self.svg_settings.set("svg-segment-projection", True)
+        self.serialiser_settings.set("profile-threshold", 10000)
+        self.serialiser_settings.set("svg-xmlns", True)
+        self.serialiser_settings.set("svg-project", True)
+        self.serialiser_settings.set("auto-elevation", False)
+        self.serialiser_settings.set("auto-section", False)
+        self.serialiser_settings.set("print-space-names", False)
+        self.serialiser_settings.set("print-space-areas", False)
+        self.serialiser_settings.set("door-arcs", False)
+        self.serialiser_settings.set("svg-no-css", True)
+        self.serialiser_settings.set("elevation-ref-guid", self.camera_element.GlobalId)
+        self.serialiser_settings.set("scale", str(self.scale))
+        self.serialiser_settings.set("svg-subtract-before", "always")
+        self.serialiser_settings.set("svg-prefilter", True)  # See #3359
+        self.serialiser_settings.set("svg-unify-inputs", True)
+        self.serialiser_settings.set("svg-segment-projection", True)
        if target_view == "REFLECTED_PLAN_VIEW":
-            self.svg_settings.set("svg-mirror-y", True)
-        self.serialiser = ifcopenshell.geom.serializers.svg(self.svg_buffer, self.svg_settings)
+            self.serialiser_settings.set("svg-mirror-y", True)
+        self.serialiser = ifcopenshell.geom.serializers.svg(
+            self.svg_buffer, self.svg_settings, self.serialiser_settings
+        )
        # tree = ifcopenshell.geom.tree()
        # This instructs the tree to explode BReps into faces and return
        # the style of the face when running tree.select_ray()
@@ -72,10 +72,11 @@ class ExportOBJ(bpy.types.Operator):
        # Conversion from IFC to OBJ
        # Settings for obj
        settings = ifcopenshell.geom.settings()
+        serializer_settings = ifcopenshell.geom.serializer_settings()

        settings.set("dimensionality", ifcopenshell.ifcopenshell_wrapper.SURFACES_AND_SOLIDS)
        settings.set("apply-default-materials", True)
-        settings.set("use-element-guids", True)
+        serializer_settings.set("use-element-guids", True)
        settings.set("use-world-coords", True)

        ifc_file: ifcopenshell.file
@@ -89,7 +90,7 @@ class ExportOBJ(bpy.types.Operator):
        obj_file_path = os.path.join(output_dir, "model.obj")
        mtl_file_path = os.path.join(output_dir, "model.mtl")

-        serialiser = ifcopenshell.geom.serializers.obj(obj_file_path, mtl_file_path, settings)
+        serialiser = ifcopenshell.geom.serializers.obj(obj_file_path, mtl_file_path, settings, serializer_settings)
        serialiser.setFile(ifc_file)
        serialiser.setUnitNameAndMagnitude("METER", 1.0)
        serialiser.writeHeader()
@@ -106,7 +107,7 @@ class ExportOBJ(bpy.types.Operator):
        if iterator.initialize():
            while True:
                shape = iterator.get()
-                assert isinstance(shape, W.triangulation_element)
+                assert isinstance(shape, W.TriangulationElement)
                materials = shape.geometry.materials

                for material in materials:
@@ -430,7 +430,7 @@ class SverchokData:
    @classmethod
    def has_sverchok(cls) -> bool:
        try:
-            import sverchok  # ruff: ignore[unused-import]
+            import sverchok  # noqa: F401

            return True
        except ModuleNotFoundError:
@@ -560,7 +560,7 @@ class AddDoor(bpy.types.Operator, tool.Ifc.Operator):
        )
        update_door_modifier_representation(obj)

-    def _execute(self, context: bpy.types.Context) -> set[str]:
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
        for obj in tool.Blender.get_selected_objects():
            if not tool.Blender.Modifier.is_eligible_for_door_modifier(obj):
                continue
@@ -638,7 +638,7 @@ class RemoveDoor(bpy.types.Operator, tool.Ifc.Operator):
        pset = tool.Pset.get_element_pset(element, "BBIM_Door")
        ifcopenshell.api.pset.remove_pset(tool.Ifc.get(), product=element, pset=pset)

-    def _execute(self, context: bpy.types.Context) -> set[str]:
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
        for obj in tool.Blender.get_selected_objects():
            self.remove_door_on_object(obj)
        return {"FINISHED"}
@@ -683,7 +683,7 @@ class ToggleDoorSwing(bpy.types.Operator, tool.Ifc.Operator):
            return True
        return False

-    def _execute(self, context: bpy.types.Context) -> set[str]:
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
        obj = tool.Blender.get_active_object()
        if not obj:
            return {"CANCELLED"}
@@ -909,7 +909,9 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
            setattr(self, f"gizmo_swing_arc_{cfg.name}", main)
            setattr(self, f"gizmo_swing_arc_{cfg.name}_flip", flip)

-    def _refresh_element_specific(self, context: bpy.types.Context, mw: Matrix, props: "BIMDoorProperties") -> None:
+    def _refresh_element_specific(
+        self, context: bpy.types.Context, mw: Matrix, props: "BIMDoorProperties"  # noqa: ARG002
+    ) -> None:
        """Update door-specific swing arc gizmos."""
        self.update_swing_gizmos(mw, props)

@@ -765,7 +765,7 @@ class GizmoRoofEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
    def is_element_type(cls, element: ifcopenshell.entity_instance) -> bool:
        return tool.Parametric.is_roof(element)

-    def _update_dimension_gizmo_positions(self, context: bpy.types.Context, mw, props) -> None:
+    def _update_dimension_gizmo_positions(self, context: bpy.types.Context, mw, props) -> None:  # noqa: ARG002
        """Anchor every dimension gizmo at the object origin. Each gizmo's
        declared axis (height/slope along +Z, thickness along -Z) separates
        them in 3D so they don't visually collide despite sharing a
@@ -776,7 +776,7 @@ class GizmoRoofEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
        self.set_dimension_gizmo_position("angle", mw, origin, (0, 0, 1))
        self.set_dimension_gizmo_position("roof_thickness", mw, origin, (0, 0, -1))

-    def get_element_height(self, props) -> float:
+    def get_element_height(self, props) -> float:  # noqa: ARG002
        """Object-local Z of the mesh's topmost vertex, so the pen / validate /
        cancel / cycle row anchors visibly above sloped or stepped roof
        bodies rather than at the parametric ``props.height`` which may not
@@ -405,7 +405,7 @@ class SetStairTreads(bpy.types.Operator):
    bl_label = "Set Number of Treads"
    bl_options = {"REGISTER", "UNDO", "INTERNAL"}

-    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:
+    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:  # noqa: ARG002
        obj = context.active_object
        if not obj:
            return {"CANCELLED"}
@@ -658,7 +658,9 @@ class GizmoStairEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
        self.tread_count_label_gizmo.alpha = 0.8
        self.tread_count_label_gizmo.target_set_operator("bim.input_stair_treads")

-    def _refresh_element_specific(self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties") -> None:
+    def _refresh_element_specific(
+        self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties"  # noqa: ARG002
+    ) -> None:
        """Update stair-specific lock and tread count gizmos. Lock positioning is
        handled per-frame in the dimension-positioning hook."""
        self.update_lock_gizmo(props)
@@ -705,7 +707,7 @@ class GizmoStairEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
            self.update_gizmo_visibility(self.tread_count_label_gizmo, props.is_editing)

    def _update_dimension_gizmo_positions(
-        self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties"
+        self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties"  # noqa: ARG002
    ) -> None:
        """Update dimension gizmo positions based on camera view direction."""
        viewing_from_negative_y, viewing_from_negative_x = self._frame_view_dir
@@ -2174,7 +2174,7 @@ class GizmoWallEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
        return (far, near)

    def _update_dimension_gizmo_positions(
-        self, context: bpy.types.Context, mw: Matrix, props: "BIMWallProperties"
+        self, context: bpy.types.Context, mw: Matrix, props: "BIMWallProperties"  # noqa: ARG002
    ) -> None:
        """Re-position length / height / height_end dimensions to the camera-facing
        Y-side of the wall every frame. Mirrors the door & stair pattern: when the
@@ -2530,7 +2530,7 @@ def _perpendicular_wall_params(
    return clamped_x, abs(cursor_local_y), side_sign


-def _commit_pending_wall_edits_for_selection(context: bpy.types.Context) -> None:
+def _commit_pending_wall_edits_for_selection(context: bpy.types.Context) -> None:  # noqa: ARG001
    """Thin wall-scoped alias for ``tool.Parametric.commit_pending_edits_for_selection``.

    Encapsulates the ``names=("wall",)`` filter so the registry name is
@@ -538,7 +538,7 @@ class RemoveWindow(bpy.types.Operator, tool.Ifc.Operator):
    bl_label = "Remove Window"
    bl_options = {"REGISTER"}

-    def _execute(self, context: bpy.types.Context) -> set[str]:
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
        obj = context.active_object
        assert obj
        element = tool.Ifc.get_entity(obj)
@@ -2442,7 +2442,7 @@ class LoadLinkedProject(bpy.types.Operator, ImportHelper):
            if iterator.initialize():
                while True:  # Main loop.
                    shape = iterator.get()
-                    assert isinstance(shape, W.triangulation_element)
+                    assert isinstance(shape, W.TriangulationElement)
                    results.add(self.file.by_id(shape.id))
                    geometry = shape.geometry

@@ -2518,7 +2518,7 @@ class LoadLinkedProject(bpy.types.Operator, ImportHelper):
        print("Finished", time.time() - start)
        return {"FINISHED"}

-    def process_occurrence(self, shape: W.triangulation_element) -> None:
+    def process_occurrence(self, shape: W.TriangulationElement) -> None:
        element = self.file.by_id(shape.id)

        mat = ifcopenshell.util.shape.get_shape_matrix(shape)
@@ -558,7 +558,7 @@ class IntegerInputDialogMixin:
            return None
        return props

-    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:
+    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:  # noqa: ARG002
        props = self._resolve_props(context)
        if props is None:
            return {"CANCELLED"}
@@ -142,35 +142,8 @@ def assign_material(
        else:
            element_material_type = material_type

-        # TODO: this whole dance is a stopgap and wants rewriting.
-        #
-        # material.assign_material creates material sets with no items in them,
-        # ignoring the material it was handed -- an IfcMaterialLayerSet with no
-        # MaterialLayers is not valid IFC, since the list is mandatory and
-        # [1:?]. So we repair it below, after the fact. Worse, the API rejects a
-        # plain IfcMaterial outright when asked for a usage, which is exactly
-        # what the Object Materials dropdown gives us, so we cannot even pass it
-        # on and have to let the API invent an empty set and then fill it in.
-        #
-        # The fix is for assign_material to build the set around the material it
-        # is given, rather than leaving an invalid one behind for its callers to
-        # patch up. That is a wider change than it looks: add_material_set has
-        # the same behaviour, and the create-empty-then-add-items idiom is
-        # spread through the API's own docstrings, examples and tests. Until
-        # that is untangled, keep the repair here where it is at least visible.
-
-        # Only a usage refuses a plain IfcMaterial; every other type still wants
-        # it, and IfcMaterial and IfcMaterialList cannot be created without it.
-        pass_material = material_tool.is_a_material_set(material) or not element_material_type.endswith("Usage")
-        ifc.run(
-            "material.assign_material",
-            products=[element],
-            type=element_material_type,
-            material=material if pass_material else None,
-        )
-        # A usage points at the set rather than being one, and it is the set
-        # that needs an item adding to it below.
-        assigned_material = material_tool.get_material(element, should_skip_usage=True)
+        ifc.run("material.assign_material", products=[element], type=element_material_type, material=material)
+        assigned_material = material_tool.get_material(element)
        assert assigned_material  # Type checker.

        if material_tool.is_a_material_set(material):
@@ -651,7 +651,7 @@ class Material:
    def get_default_material(cls): pass
    def get_elements_by_material(cls, material): pass
    def get_material_attributes(cls): pass
-    def get_material(cls, element, should_inherit: bool = False, should_skip_usage: bool = False): pass
+    def get_material(cls, element, should_inherit: bool = False): pass
    def get_object_ui_active_material(cls): pass
    def get_object_ui_material_type(cls): pass
    def get_style(cls, material): pass
@@ -17,7 +17,7 @@
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
 #
 # Ignore unused imports.
-# ruff: file-ignore[unused-import]
+# ruff: noqa: F401

 from bonsai.tool.aggregate import Aggregate
 from bonsai.tool.array import Array
@@ -25,7 +25,6 @@ import importlib
 import math
 import os
 import platform
-import re
 import subprocess
 import sys
 import tempfile
@@ -1757,7 +1756,6 @@ class Blender(bonsai.core.tool.Blender):
            repo_path = repo.working_tree_dir
            assert repo_path
            version_ = (Path(repo_path) / "VERSION").read_text().strip()
-            version_ = re.sub(r"[A-Za-z]+\d+$", "", version_)
            commit_date = bonsai.get_last_commit_date()
            assert commit_date
            commit_date = datetime.fromisoformat(commit_date)
@@ -1187,7 +1187,7 @@ class Geometry(bonsai.core.tool.Geometry):
        if iterator and iterator.initialize():
            while True:
                shape = iterator.get()
-                assert isinstance(shape, W.triangulation_element)
+                assert isinstance(shape, W.TriangulationElement)
                element = tool.Ifc.get().by_id(shape.id)
                if obj := tool.Ifc.get_object(element):
                    # It's possible that there will be multiple shapes for the same context,
@@ -2179,7 +2179,7 @@ class Geometry(bonsai.core.tool.Geometry):
        item = tool.Ifc.get().by_id(props.ifc_definition_id)
        allowed_attributes = [
            a.name()
-            for a in item.declaration.as_entity().all_attributes()
+            for a in item.declaration().as_entity.all_attributes()
            if a.type_of_attribute()._is("IfcLengthMeasure")
        ]

@@ -872,7 +872,7 @@ class Loader(bonsai.core.tool.Loader):
        cls,
        element: ifcopenshell.entity_instance,
        representation: ifcopenshell.entity_instance,
-        shape: W.triangulation_element,
+        shape: W.TriangulationElement,
    ) -> bpy.types.Camera:
        """Create camera data.

@@ -1026,7 +1026,7 @@ class Loader(bonsai.core.tool.Loader):
    @classmethod
    def convert_geometry_to_mesh(
        cls,
-        geometry: W.triangulation,
+        geometry: W.Triangulation,
        mesh: bpy.types.Mesh,
        verts: Optional[npt.NDArray[np.float64]] = None,
        *,
@@ -220,14 +220,9 @@ class Material(bonsai.core.tool.Material):

    @classmethod
    def get_material(
-        cls,
-        element: ifcopenshell.entity_instance,
-        should_inherit: bool = False,
-        should_skip_usage: bool = False,
+        cls, element: ifcopenshell.entity_instance, should_inherit: bool = False
    ) -> Union[ifcopenshell.entity_instance, None]:
-        return ifcopenshell.util.element.get_material(
-            element, should_inherit=should_inherit, should_skip_usage=should_skip_usage
-        )
+        return ifcopenshell.util.element.get_material(element, should_inherit=should_inherit)

    @classmethod
    def is_a_material_set(cls, material: ifcopenshell.entity_instance) -> bool:
@@ -2459,7 +2459,7 @@ class Model(bonsai.core.tool.Model):
        polygons = {}
        for curve in curves:
            geometry = ifcopenshell.geom.create_shape(settings, curve)
-            assert isinstance(geometry, W.triangulation)
+            assert isinstance(geometry, W.Triangulation)
            v = ifcopenshell.util.shape.get_vertices(geometry, is_2d=True)
            v = np.round(v, 4)  # Round to nearest 0.1mm, otherwise things like circles don't polygonise reliably
            edges = ifcopenshell.util.shape.get_edges(geometry)
@@ -53,7 +53,7 @@ class Profile(bonsai.core.tool.Profile):
        settings.set("dimensionality", ifcopenshell.ifcopenshell_wrapper.CURVES_SURFACES_AND_SOLIDS)
        shape = ifcopenshell.geom.create_shape(settings, profile)

-        assert isinstance(shape, W.triangulation)
+        assert isinstance(shape, W.Triangulation)
        verts = ifcopenshell.util.shape.get_vertices(shape)
        if verts.size == 0:
            raise RuntimeError(f"Profile shape has no vertices, it probably is invalid: '{profile}'.")
@@ -76,10 +76,6 @@ Release
 Notes:

 - Typically all packages are released at once using the same version schema
- ``VERSION`` uses Python/PEP 440-compatible spelling. For example, an alpha
-  release may be ``0.9.0alpha0`` (canonicalized to ``0.9.0a0``); build scripts
-  derive numeric-only and SemVer forms such as ``0.9.0`` and
-  ``0.9.0-alpha0`` where required.
 - The ``README.md`` badges can serve as a visual reference for what versions have been released
 - Corrective Release (if needed after a standard release):

@@ -33,7 +33,7 @@ exclude = ["test*"]
 [tool.ruff]
 extend = "../../pyproject.toml"
 lint.extend-select = [
-  "unused-import",  # unused imports
+  "F401",  # unused imports
 ]

 [tool.ruff.lint.isort]
@@ -42,7 +42,6 @@ markers =
    type
    unit
    void
-    wall
    web

 # Provide plugins explicitly, so it will be possible run tests with PYTEST_DISABLE_PLUGIN_AUTOLOAD.
@@ -45,10 +45,10 @@ for dep in dependencies:
    subprocess.check_call(command + [dep])

 try:
-    import pygments  # ruff: ignore[unused-import]
-    import pytest  # ruff: ignore[unused-import]
-    import pytest_bdd  # ruff: ignore[unused-import]
-    import pytest_blender  # ruff: ignore[unused-import]
+    import pygments  # noqa: F401
+    import pytest  # noqa: F401
+    import pytest_bdd  # noqa: F401
+    import pytest_blender  # noqa: F401

    print("Test dependency installation was successful!")
 except Exception as e:
@@ -163,29 +163,32 @@ class Drawer:

        # self.svg_settings.set_deflection_tolerance(0.0001)
        self.svg_buffer = ifcopenshell.geom.serializers.buffer()
-        self.svg_settings.set("svg-without-storeys", True)
-        self.svg_settings.set("svg-write-poly", True)
-        self.svg_settings.set("svg-poly", True)
+        self.serialiser_settings = ifcopenshell.geom.serializer_settings()
+        self.serialiser_settings.set("svg-without-storeys", True)
+        self.serialiser_settings.set("svg-write-poly", True)
+        self.serialiser_settings.set("svg-poly", True)
        # Objects with more than these edges are rendered as wireframe instead of HLR for optimisation
-        self.svg_settings.set("profile-threshold", 10000)
-        self.svg_settings.set("svg-xmlns", True)
-        self.svg_settings.set("svg-project", True)
-        self.svg_settings.set("auto-elevation", False)
-        self.svg_settings.set("auto-section", False)
-        self.svg_settings.set("print-space-names", False)
-        self.svg_settings.set("print-space-areas", False)
-        self.svg_settings.set("door-arcs", False)
-        self.svg_settings.set("svg-no-css", True)
-        self.svg_settings.set("elevation-ref-guid", self.camera_element.GlobalId)
-        self.svg_settings.set("scale", "1/50")
-        self.svg_settings.set("svg-subtract-before", "always")
-        self.svg_settings.set("svg-prefilter", True)  # See #3359
-        # self.svg_settings.set("svg-prefilter", False)  # See #3359
-        self.svg_settings.set("svg-unify-inputs", True)
-        self.svg_settings.set("svg-segment-projection", True)
+        self.serialiser_settings.set("profile-threshold", 10000)
+        self.serialiser_settings.set("svg-xmlns", True)
+        self.serialiser_settings.set("svg-project", True)
+        self.serialiser_settings.set("auto-elevation", False)
+        self.serialiser_settings.set("auto-section", False)
+        self.serialiser_settings.set("print-space-names", False)
+        self.serialiser_settings.set("print-space-areas", False)
+        self.serialiser_settings.set("door-arcs", False)
+        self.serialiser_settings.set("svg-no-css", True)
+        self.serialiser_settings.set("elevation-ref-guid", self.camera_element.GlobalId)
+        self.serialiser_settings.set("scale", "1/50")
+        self.serialiser_settings.set("svg-subtract-before", "always")
+        self.serialiser_settings.set("svg-prefilter", True)  # See #3359
+        # self.serialiser_settings.set("svg-prefilter", False)  # See #3359
+        self.serialiser_settings.set("svg-unify-inputs", True)
+        self.serialiser_settings.set("svg-segment-projection", True)
        if target_view == "REFLECTED_PLAN_VIEW":
-            self.svg_settings.set("svg-mirror-y", True)
-        self.serialiser = ifcopenshell.geom.serializers.svg(self.svg_buffer, self.svg_settings)
+            self.serialiser_settings.set("svg-mirror-y", True)
+        self.serialiser = ifcopenshell.geom.serializers.svg(
+            self.svg_buffer, self.svg_settings, self.serialiser_settings
+        )
        self.serialiser.setFile(ifc)


@@ -72,12 +72,12 @@ Scenario: Add classification reference - object
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
-    When I press "bim.add_classification_reference(reference={reference}, obj='IfcWall/Cube', obj_type='Object')"
+    When I press "bim.add_classification_reference(reference={reference}, obj='IfcWallType/Cube', obj_type='Object')"
    Then nothing happens

 Scenario: Change classification level
@@ -88,8 +88,8 @@ Scenario: Change classification level
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
@@ -104,8 +104,8 @@ Scenario: Disable editing classification references
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    When I press "bim.disable_editing_classification_references"
@@ -119,12 +119,12 @@ Scenario: Enable editing classification reference
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
-    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWall/Cube', obj_type='Object')"
+    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWallType/Cube', obj_type='Object')"
    And the variable "reference" is "{ifc}.by_type('IfcClassificationReference')[0].id()"
    When I press "bim.enable_editing_classification_reference(reference={reference})"
    Then nothing happens
@@ -137,12 +137,12 @@ Scenario: Disable editing classification reference
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
-    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWall/Cube', obj_type='Object')"
+    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWallType/Cube', obj_type='Object')"
    And the variable "reference" is "{ifc}.by_type('IfcClassificationReference')[0].id()"
    And I press "bim.enable_editing_classification_reference(reference={reference})"
    When I press "bim.disable_editing_classification_reference"
@@ -156,15 +156,15 @@ Scenario: Remove classification reference - object
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
-    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWall/Cube', obj_type='Object')"
+    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWallType/Cube', obj_type='Object')"
    And the variable "reference" is "{ifc}.by_type('IfcClassificationReference')[0].id()"
    And I press "bim.enable_editing_classification_reference(reference={reference})"
-    When I press "bim.remove_classification_reference(reference={reference}, obj='IfcWall/Cube', obj_type='Object')"
+    When I press "bim.remove_classification_reference(reference={reference}, obj='IfcWallType/Cube', obj_type='Object')"
    Then nothing happens

 Scenario: Edit classification reference
@@ -175,12 +175,12 @@ Scenario: Edit classification reference
    And I press "bim.add_classification"
    And I add a cube
    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.change_classification_level(parent_id={classification})"
    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
-    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWall/Cube', obj_type='Object')"
+    And I press "bim.add_classification_reference(reference={reference}, obj='IfcWallType/Cube', obj_type='Object')"
    And the variable "reference" is "{ifc}.by_type('IfcClassificationReference')[0].id()"
    And I press "bim.enable_editing_classification_reference(reference={reference})"
    When I press "bim.edit_classification_reference"
@@ -185,7 +185,6 @@ Scenario: Update representation - updating a layered extrusion
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -214,7 +213,6 @@ Scenario: Update representation - updating a profiled extrusion
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -418,7 +416,6 @@ Scenario: Override duplicate move - copying a layered extrusion
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -450,7 +447,6 @@ Scenario: Override duplicate move - copying a profiled extrusion
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -121,7 +121,6 @@ Scenario: Assign material - material layer set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    When I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    Then the object "IfcWallType/Empty" does not have the material "Default"
@@ -135,7 +134,6 @@ Scenario: Unassign material - material layer set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    When I press "bim.unassign_material"
@@ -157,7 +155,6 @@ Scenario: Unassign material - removing inherited material
    And I press "bim.assign_class"

    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"

@@ -184,7 +181,6 @@ Scenario: Enable editing assigned material - material layer set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    When I press "bim.enable_editing_assigned_material"
@@ -204,7 +200,6 @@ Scenario: Disable editing assigned material - material layer set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -225,7 +220,6 @@ Scenario: Edit assigned material - material layer set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -241,7 +235,6 @@ Scenario: Assign material - material profile set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    When I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    Then the object "IfcWallType/Empty" does not have the material "Default"
@@ -255,7 +248,6 @@ Scenario: Unassign material - material profile set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    When I press "bim.unassign_material"
@@ -275,7 +267,6 @@ Scenario: Enable editing assigned material - material profile set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    When I press "bim.enable_editing_assigned_material"
@@ -295,7 +286,6 @@ Scenario: Disable editing assigned material - material profile set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -316,7 +306,6 @@ Scenario: Edit assigned material - material profile set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -465,7 +454,6 @@ Scenario: Add material set layer
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -489,7 +477,6 @@ Scenario: Remove material set layer
    And I press "bim.assign_class"

    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"

@@ -314,12 +314,6 @@ Scenario: Load project elements - auto offset of cartesian points
    Then the object "IfcBuildingElementProxy/NAME" is at "0,0,0"

 Scenario: Load project elements - all georeferencing coordinate situations - disabled false origin mode
-    # D, G and J have their geometry far from their placement, so each is
-    # shifted onto one of its own verts to keep its precision. Which vert that
-    # is comes from the geometry kernel and has changed before, so these assert
-    # that the origin is on a vert rather than which one, and name verts rather
-    # than origins. In automatic mode the model origin is picked the same way
-    # and everything moves with it, so there they are relative to it.
    Given an empty Blender session
    And I press "bim.load_project(filepath='{cwd}/test/files/geolocation.ifc', is_advanced=True)"
    When I set "scene.BIMProjectProperties.false_origin_mode" to "DISABLED"
@@ -332,19 +326,13 @@ Scenario: Load project elements - all georeferencing coordinate situations - dis
    And the object "IfcActuator/A" is at "7,3,0"
    And the object "IfcActuator/B" is at "6,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "13,4,-1" at map coordinates "13000,4000,-1000"
-    And the object "IfcActuator/D" has a vert at "15,2,1" at map coordinates "15000,2000,1000"
+    And the object "IfcActuator/D" is at "13,4,-1"
    And the object "IfcActuator/E" is at "6,3,0"
    And the object "IfcActuator/F" is at "3,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "15,6,-1" at map coordinates "15000,6000,-1000"
-    And the object "IfcActuator/G" has a vert at "17,4,1" at map coordinates "17000,4000,1000"
+    And the object "IfcActuator/G" is at "15,6,-1"
    And the object "IfcActuator/H" is at "9,2,0"
    And the object "IfcActuator/I" is at "3,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "11,3,-1" at map coordinates "11000,3000,-1000"
-    And the object "IfcActuator/J" has a vert at "13,1,1" at map coordinates "13000,1000,1000"
+    And the object "IfcActuator/J" is at "11,3,-1"
    And the object "IfcActuator/K" is at "10,0,0"

 Scenario: Load project elements - all georeferencing coordinate situations - automatic false origin mode
@@ -354,27 +342,24 @@ Scenario: Load project elements - all georeferencing coordinate situations - aut
    When I set "scene.BIMProjectProperties.distance_limit" to "5"
    And I press "bim.load_project_elements"
    Then "scene.BIMGeoreferenceProperties.has_blender_offset" is "True"
-    And the model origin is on an object vertex
+    And "scene.BIMGeoreferenceProperties.model_origin" is "13000.0,4000.0,-1000.0"
+    And "scene.BIMGeoreferenceProperties.blender_offset_x" is "13000.0"
+    And "scene.BIMGeoreferenceProperties.blender_offset_y" is "4000.0"
+    And "scene.BIMGeoreferenceProperties.blender_offset_z" is "-1000.0"
    And the object "IfcSite/My Site" is at "0,0,0"
    And the object "IfcBuilding/My Building" is at "0,0,0"
    And the object "IfcBuildingStorey/My Storey" is at "0,0,0"
-    And the object "IfcActuator/A" is at "7,3,0" relative to the model origin at map coordinates "7000,3000,0"
-    And the object "IfcActuator/B" is at "6,1,0" relative to the model origin at map coordinates "6000,1000,0"
+    And the object "IfcActuator/A" is at "-6,-1,1"
+    And the object "IfcActuator/B" is at "-7,-3,1"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "13,4,-1" relative to the model origin at map coordinates "13000,4000,-1000"
-    And the object "IfcActuator/D" has a vert at "15,2,1" relative to the model origin at map coordinates "15000,2000,1000"
-    And the object "IfcActuator/E" is at "6,3,0" relative to the model origin at map coordinates "6000,3000,0"
-    And the object "IfcActuator/F" is at "3,3,0" relative to the model origin at map coordinates "3000,3000,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "15,6,-1" relative to the model origin at map coordinates "15000,6000,-1000"
-    And the object "IfcActuator/G" has a vert at "17,4,1" relative to the model origin at map coordinates "17000,4000,1000"
-    And the object "IfcActuator/H" is at "9,2,0" relative to the model origin at map coordinates "9000,2000,0"
-    And the object "IfcActuator/I" is at "3,3,0" relative to the model origin at map coordinates "3000,3000,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "11,3,-1" relative to the model origin at map coordinates "11000,3000,-1000"
-    And the object "IfcActuator/J" has a vert at "13,1,1" relative to the model origin at map coordinates "13000,1000,1000"
-    And the object "IfcActuator/K" is at "10,0,0" relative to the model origin at map coordinates "10000,0,0"
+    And the object "IfcActuator/D" is at "0,0,0"
+    And the object "IfcActuator/E" is at "-7,-1,1"
+    And the object "IfcActuator/F" is at "-10,-1,1"
+    And the object "IfcActuator/G" is at "2,2,0"
+    And the object "IfcActuator/H" is at "-4,-2,1"
+    And the object "IfcActuator/I" is at "-10,-1,1"
+    And the object "IfcActuator/J" is at "-2,-1,0"
+    And the object "IfcActuator/K" is at "-3,-4,1"

 Scenario: Load project elements - all georeferencing coordinate situations - manual false origin mode
    Given an empty Blender session
@@ -394,20 +379,23 @@ Scenario: Load project elements - all georeferencing coordinate situations - man
    And the object "IfcActuator/A" is at "-3,3,0"
    And the object "IfcActuator/B" is at "-4,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "3,4,-1" at map coordinates "13000,4000,-1000"
-    And the object "IfcActuator/D" has a vert at "5,2,1" at map coordinates "15000,2000,1000"
+    And the object "IfcActuator/D" is at "3,4,-1"
    And the object "IfcActuator/E" is at "-4,3,0"
    And the object "IfcActuator/F" is at "-7,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "5,6,-1" at map coordinates "15000,6000,-1000"
-    And the object "IfcActuator/G" has a vert at "7,4,1" at map coordinates "17000,4000,1000"
+    And the object "IfcActuator/G" is at "5,6,-1"
    And the object "IfcActuator/H" is at "-1,2,0"
    And the object "IfcActuator/I" is at "-7,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "1,3,-1" at map coordinates "11000,3000,-1000"
-    And the object "IfcActuator/J" has a vert at "3,1,1" at map coordinates "13000,1000,1000"
+    And the object "IfcActuator/J" is at "1,3,-1"
    And the object "IfcActuator/K" is at "0,0,0"
+    And the object "IfcActuator/D" has a cartesian point offset of "31,4,-1"
+    And the object "IfcActuator/G" has a cartesian point offset of "-25,6,-1"
+    And the object "IfcActuator/J" has a cartesian point offset of "11,3,-1"
+    And the object "IfcActuator/D" has a vertex at "3,2,-1"
+    And the object "IfcActuator/D" has a vertex at "5,2,-1"
+    And the object "IfcActuator/G" has a vertex at "5,4,-1"
+    And the object "IfcActuator/G" has a vertex at "7,4,-1"
+    And the object "IfcActuator/J" has a vertex at "1,1,-1"
+    And the object "IfcActuator/J" has a vertex at "3,1,-1"

 Scenario: Load project elements - all georeferencing coordinate situations with an offset site - disabled false origin mode
    Given an empty Blender session
@@ -422,19 +410,13 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "5.985,14.71,0"
    And the object "IfcActuator/B" is at "5.5367,12.519,0"
    And the object "IfcActuator/C" is at "0,10,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "11.5218,17.2284,-1" at map coordinates "11521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "13.9712,15.8141,1" at map coordinates "13971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "11.522,17.228,-1"
    And the object "IfcActuator/E" is at "5.0191,14.451,0"
    And the object "IfcActuator/F" is at "2.1213,13.674,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "12.936,19.6778,-1" at map coordinates "12935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "15.3855,18.2636,1" at map coordinates "15385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "12.936,19.678,-1"
    And the object "IfcActuator/H" is at "8.1757,14.261,0"
    And the object "IfcActuator/I" is at "2.1213,13.674,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "9.8487,15.7448,-1" at map coordinates "9848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "12.2982,14.3306,1" at map coordinates "12298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "9.8487,15.745,-1"
    And the object "IfcActuator/K" is at "9.6593,12.588,0"

 Scenario: Load project elements - all georeferencing coordinate situations with an offset site - automatic false origin mode
@@ -454,19 +436,13 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "7,3,0"
    And the object "IfcActuator/B" is at "6,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "13,4,-1" at map coordinates "11521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "15,2,1" at map coordinates "13971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "13,4,-1"
    And the object "IfcActuator/E" is at "6,3,0"
    And the object "IfcActuator/F" is at "3,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "15,6,-1" at map coordinates "12935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "17,4,1" at map coordinates "15385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "15,6,-1"
    And the object "IfcActuator/H" is at "9,2,0"
    And the object "IfcActuator/I" is at "3,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "11,3,-1" at map coordinates "9848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "13,1,1" at map coordinates "12298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "11,3,-1"
    And the object "IfcActuator/K" is at "10,0,0"

 Scenario: Load project elements - all georeferencing coordinate situations with an offset site - manual false origin mode
@@ -487,20 +463,23 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "5.985,4.71,0"
    And the object "IfcActuator/B" is at "5.5367,2.519,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "11.5218,7.2284,-1" at map coordinates "11521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "13.9712,5.8141,1" at map coordinates "13971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "11.522,7.228,-1"
    And the object "IfcActuator/E" is at "5.0191,4.451,0"
    And the object "IfcActuator/F" is at "2.1213,3.674,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "12.936,9.6778,-1" at map coordinates "12935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "15.3855,8.2636,1" at map coordinates "15385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "12.936,9.678,-1"
    And the object "IfcActuator/H" is at "8.1757,4.261,0"
    And the object "IfcActuator/I" is at "2.1213,3.674,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "9.8487,5.7448,-1" at map coordinates "9848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "12.2982,4.3306,1" at map coordinates "12298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "9.8487,5.745,-1"
    And the object "IfcActuator/K" is at "9.6593,2.588,0"
+    And the object "IfcActuator/D" has a cartesian point offset of "31,4,-1"
+    And the object "IfcActuator/G" has a cartesian point offset of "-25,6,-1"
+    And the object "IfcActuator/J" has a cartesian point offset of "11,3,-1"
+    And the object "IfcActuator/D" has a vertex at "12.039,5.296,-1"
+    And the object "IfcActuator/D" has a vertex at "13.971,5.814,-1"
+    And the object "IfcActuator/G" has a vertex at "13.454,7.746,-1"
+    And the object "IfcActuator/G" has a vertex at "15.385,8.264,-1"
+    And the object "IfcActuator/J" has a vertex at "10.366,3.813,-1"
+    And the object "IfcActuator/J" has a vertex at "12.298,4.331,-1"

 Scenario: Load project elements - all georeferencing coordinate situations with an offset site - manual false origin mode - with custom project north
    Given an empty Blender session
@@ -521,19 +500,13 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "7,3,0"
    And the object "IfcActuator/B" is at "6,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "13,4,-1" at map coordinates "11521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "15,2,1" at map coordinates "13971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "13,4,-1"
    And the object "IfcActuator/E" is at "6,3,0"
    And the object "IfcActuator/F" is at "3,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "15,6,-1" at map coordinates "12935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "17,4,1" at map coordinates "15385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "15,6,-1"
    And the object "IfcActuator/H" is at "9,2,0"
    And the object "IfcActuator/I" is at "3,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "11,3,-1" at map coordinates "9848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "13,1,1" at map coordinates "12298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "11,3,-1"
    And the object "IfcActuator/K" is at "10,0,0"

 Scenario: Load project elements - all georeferencing coordinate situations with a map conversion - disabled false origin mode (this should be identical to the situation with no map conversion)
@@ -549,19 +522,13 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "7,3,0"
    And the object "IfcActuator/B" is at "6,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "13,4,-1" at map coordinates "28000,4000,-1000"
-    And the object "IfcActuator/D" has a vert at "15,2,1" at map coordinates "30000,2000,1000"
+    And the object "IfcActuator/D" is at "13,4,-1"
    And the object "IfcActuator/E" is at "6,3,0"
    And the object "IfcActuator/F" is at "3,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "15,6,-1" at map coordinates "30000,6000,-1000"
-    And the object "IfcActuator/G" has a vert at "17,4,1" at map coordinates "32000,4000,1000"
+    And the object "IfcActuator/G" is at "15,6,-1"
    And the object "IfcActuator/H" is at "9,2,0"
    And the object "IfcActuator/I" is at "3,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "11,3,-1" at map coordinates "26000,3000,-1000"
-    And the object "IfcActuator/J" has a vert at "13,1,1" at map coordinates "28000,1000,1000"
+    And the object "IfcActuator/J" is at "11,3,-1"
    And the object "IfcActuator/K" is at "10,0,0"

 Scenario: Load project elements - all georeferencing coordinate situations with a map conversion - automatic false origin mode (this should affect the Blender eastings and northings, which is now different to the Blender offset XYZ, but is otherwise identical to the non-map conversion variant)
@@ -571,27 +538,24 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    When I set "scene.BIMProjectProperties.distance_limit" to "5"
    And I press "bim.load_project_elements"
    Then "scene.BIMGeoreferenceProperties.has_blender_offset" is "True"
-    And the model origin is on an object vertex
+    And "scene.BIMGeoreferenceProperties.model_origin" is "28000.0,4000.0,-1000.0"
+    And "scene.BIMGeoreferenceProperties.blender_offset_x" is "13000.0"
+    And "scene.BIMGeoreferenceProperties.blender_offset_y" is "4000.0"
+    And "scene.BIMGeoreferenceProperties.blender_offset_z" is "-1000.0"
    And the object "IfcSite/My Site" is at "0,0,0"
    And the object "IfcBuilding/My Building" is at "0,0,0"
    And the object "IfcBuildingStorey/My Storey" is at "0,0,0"
-    And the object "IfcActuator/A" is at "22,3,0" relative to the model origin at map coordinates "22000,3000,0"
-    And the object "IfcActuator/B" is at "21,1,0" relative to the model origin at map coordinates "21000,1000,0"
+    And the object "IfcActuator/A" is at "-6,-1,1"
+    And the object "IfcActuator/B" is at "-7,-3,1"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "28,4,-1" relative to the model origin at map coordinates "28000,4000,-1000"
-    And the object "IfcActuator/D" has a vert at "30,2,1" relative to the model origin at map coordinates "30000,2000,1000"
-    And the object "IfcActuator/E" is at "21,3,0" relative to the model origin at map coordinates "21000,3000,0"
-    And the object "IfcActuator/F" is at "18,3,0" relative to the model origin at map coordinates "18000,3000,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "30,6,-1" relative to the model origin at map coordinates "30000,6000,-1000"
-    And the object "IfcActuator/G" has a vert at "32,4,1" relative to the model origin at map coordinates "32000,4000,1000"
-    And the object "IfcActuator/H" is at "24,2,0" relative to the model origin at map coordinates "24000,2000,0"
-    And the object "IfcActuator/I" is at "18,3,0" relative to the model origin at map coordinates "18000,3000,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "26,3,-1" relative to the model origin at map coordinates "26000,3000,-1000"
-    And the object "IfcActuator/J" has a vert at "28,1,1" relative to the model origin at map coordinates "28000,1000,1000"
-    And the object "IfcActuator/K" is at "25,0,0" relative to the model origin at map coordinates "25000,0,0"
+    And the object "IfcActuator/D" is at "0,0,0"
+    And the object "IfcActuator/E" is at "-7,-1,1"
+    And the object "IfcActuator/F" is at "-10,-1,1"
+    And the object "IfcActuator/G" is at "2,2,0"
+    And the object "IfcActuator/H" is at "-4,-2,1"
+    And the object "IfcActuator/I" is at "-10,-1,1"
+    And the object "IfcActuator/J" is at "-2,-1,0"
+    And the object "IfcActuator/K" is at "-3,-4,1"

 Scenario: Load project elements - all georeferencing coordinate situations with a map conversion - manual false origin mode (this should affect the Blender eastings and northings, which is now different to the Blender offset XYZ, but is otherwise identical to the non-map conversion variant)
    Given an empty Blender session
@@ -611,20 +575,23 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "-3,3,0"
    And the object "IfcActuator/B" is at "-4,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "3,4,-1" at map coordinates "28000,4000,-1000"
-    And the object "IfcActuator/D" has a vert at "5,2,1" at map coordinates "30000,2000,1000"
+    And the object "IfcActuator/D" is at "3,4,-1"
    And the object "IfcActuator/E" is at "-4,3,0"
    And the object "IfcActuator/F" is at "-7,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "5,6,-1" at map coordinates "30000,6000,-1000"
-    And the object "IfcActuator/G" has a vert at "7,4,1" at map coordinates "32000,4000,1000"
+    And the object "IfcActuator/G" is at "5,6,-1"
    And the object "IfcActuator/H" is at "-1,2,0"
    And the object "IfcActuator/I" is at "-7,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "1,3,-1" at map coordinates "26000,3000,-1000"
-    And the object "IfcActuator/J" has a vert at "3,1,1" at map coordinates "28000,1000,1000"
+    And the object "IfcActuator/J" is at "1,3,-1"
    And the object "IfcActuator/K" is at "0,0,0"
+    And the object "IfcActuator/D" has a cartesian point offset of "31,4,-1"
+    And the object "IfcActuator/G" has a cartesian point offset of "-25,6,-1"
+    And the object "IfcActuator/J" has a cartesian point offset of "11,3,-1"
+    And the object "IfcActuator/D" has a vertex at "3,2,-1"
+    And the object "IfcActuator/D" has a vertex at "5,2,-1"
+    And the object "IfcActuator/G" has a vertex at "5,4,-1"
+    And the object "IfcActuator/G" has a vertex at "7,4,-1"
+    And the object "IfcActuator/J" has a vertex at "1,1,-1"
+    And the object "IfcActuator/J" has a vertex at "3,1,-1"

 Scenario: Load project elements - all georeferencing coordinate situations with map conversion and an offset site - disabled false origin mode
    Given an empty Blender session
@@ -639,19 +606,13 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "5.985,14.71,0"
    And the object "IfcActuator/B" is at "5.5367,12.519,0"
    And the object "IfcActuator/C" is at "0,10,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "11.5218,17.2284,-1" at map coordinates "26521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "13.9712,15.8141,1" at map coordinates "28971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "11.522,17.228,-1"
    And the object "IfcActuator/E" is at "5.0191,14.451,0"
    And the object "IfcActuator/F" is at "2.1213,13.674,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "12.936,19.6778,-1" at map coordinates "27935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "15.3855,18.2636,1" at map coordinates "30385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "12.936,19.678,-1"
    And the object "IfcActuator/H" is at "8.1757,14.261,0"
    And the object "IfcActuator/I" is at "2.1213,13.674,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "9.8487,15.7448,-1" at map coordinates "24848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "12.2982,14.3306,1" at map coordinates "27298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "9.8487,15.745,-1"
    And the object "IfcActuator/K" is at "9.6593,12.588,0"

 Scenario: Load project elements - all georeferencing coordinate situations with map conversion and an offset site - automatic false origin mode
@@ -671,19 +632,13 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "7,3,0"
    And the object "IfcActuator/B" is at "6,1,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "13,4,-1" at map coordinates "26521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "15,2,1" at map coordinates "28971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "13,4,-1"
    And the object "IfcActuator/E" is at "6,3,0"
    And the object "IfcActuator/F" is at "3,3,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "15,6,-1" at map coordinates "27935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "17,4,1" at map coordinates "30385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "15,6,-1"
    And the object "IfcActuator/H" is at "9,2,0"
    And the object "IfcActuator/I" is at "3,3,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "11,3,-1" at map coordinates "24848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "13,1,1" at map coordinates "27298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "11,3,-1"
    And the object "IfcActuator/K" is at "10,0,0"

 Scenario: Load project elements - all georeferencing coordinate situations with map conversion and an offset site - manual false origin mode
@@ -704,20 +659,23 @@ Scenario: Load project elements - all georeferencing coordinate situations with
    And the object "IfcActuator/A" is at "5.985,4.71,0"
    And the object "IfcActuator/B" is at "5.5367,2.519,0"
    And the object "IfcActuator/C" is at "0,0,0"
-    And the object "IfcActuator/D" has its origin on a vertex
-    And the object "IfcActuator/D" has a vert at "11.5218,7.2284,-1" at map coordinates "26521.758,17228.35,-1000"
-    And the object "IfcActuator/D" has a vert at "13.9712,5.8141,1" at map coordinates "28971.246,15814.136,1000"
+    And the object "IfcActuator/D" is at "11.522,7.228,-1"
    And the object "IfcActuator/E" is at "5.0191,4.451,0"
    And the object "IfcActuator/F" is at "2.1213,3.674,0"
-    And the object "IfcActuator/G" has its origin on a vertex
-    And the object "IfcActuator/G" has a vert at "12.936,9.6778,-1" at map coordinates "27935.975,19677.841,-1000"
-    And the object "IfcActuator/G" has a vert at "15.3855,8.2636,1" at map coordinates "30385.465,18263.627,1000"
+    And the object "IfcActuator/G" is at "12.936,9.678,-1"
    And the object "IfcActuator/H" is at "8.1757,4.261,0"
    And the object "IfcActuator/I" is at "2.1213,3.674,0"
-    And the object "IfcActuator/J" has its origin on a vertex
-    And the object "IfcActuator/J" has a vert at "9.8487,5.7448,-1" at map coordinates "24848.726,15744.786,-1000"
-    And the object "IfcActuator/J" has a vert at "12.2982,4.3306,1" at map coordinates "27298.216,14330.573,1000"
+    And the object "IfcActuator/J" is at "9.8487,5.745,-1"
    And the object "IfcActuator/K" is at "9.6593,2.588,0"
+    And the object "IfcActuator/D" has a cartesian point offset of "31,4,-1"
+    And the object "IfcActuator/G" has a cartesian point offset of "-25,6,-1"
+    And the object "IfcActuator/J" has a cartesian point offset of "11,3,-1"
+    And the object "IfcActuator/D" has a vertex at "12.039,5.296,-1"
+    And the object "IfcActuator/D" has a vertex at "13.971,5.814,-1"
+    And the object "IfcActuator/G" has a vertex at "13.454,7.746,-1"
+    And the object "IfcActuator/G" has a vertex at "15.385,8.264,-1"
+    And the object "IfcActuator/J" has a vertex at "10.366,3.813,-1"
+    And the object "IfcActuator/J" has a vertex at "12.298,4.331,-1"

 Scenario: Link IFC - from an empty IFC project
    Given an empty IFC project
@@ -81,7 +81,6 @@ Scenario: Assign type - assign to a type with a material layer set, which automa
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    When the variable "type" is "{ifc}.by_type('IfcWallType')[0].id()"
@@ -103,7 +102,6 @@ Scenario: Assign type - assign to a type with a material layer set, which automa
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    When the variable "type" is "{ifc}.by_type('IfcWallType')[0].id()"
@@ -127,7 +125,6 @@ Scenario: Assign type - assign to a different type with a LAYER2 material layer
    And I press "bim.assign_class"
    And the variable "type" is "{ifc}.by_type('IfcWallType')[-1].id()"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
    And I press "bim.assign_material"
    And I add an empty
@@ -183,7 +180,6 @@ Scenario: Assign type - assign to a type with a material profile set
    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
    And I press "bim.assign_class"
    And I press "bim.add_material()"
-    And the object "IfcWallType/Empty" is selected
    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
    And I press "bim.assign_material"
    And I press "bim.enable_editing_assigned_material"
@@ -45,14 +45,14 @@ def test_text_formatter_defaults_to_none():


 def test_text_formatter_field_stores_callable():
-    formatter = lambda props, value: f"{value:.2f}m"
+    formatter = lambda props, value: f"{value:.2f}m"  # noqa: E731
    config = DimensionGizmoConfig(attr_name="length", axis=(1, 0, 0), text_formatter=formatter)
    assert config.text_formatter is not None
    assert callable(config.text_formatter)


 def test_text_formatter_receives_props_and_value():
-    formatter = lambda props, value: f"{props.label}={value}"
+    formatter = lambda props, value: f"{props.label}={value}"  # noqa: E731
    config = DimensionGizmoConfig(attr_name="length", axis=(1, 0, 0), text_formatter=formatter)
    props = SimpleNamespace(label="L")
    assert config.text_formatter(props, 3.14) == "L=3.14"
@@ -104,7 +104,7 @@ class TestParametricGizmoPollsHideDuringTransformModal:
                    continue
                try:
                    result = poll(bpy.context)
-                except Exception as exc:
+                except Exception as exc:  # noqa: BLE001
                    offenders.append((name, f"poll raised: {type(exc).__name__}: {exc}"))
                    continue
                if result:
@@ -98,7 +98,7 @@ class TestWallGizmoGroupsHideDuringPreview:
                    continue
                try:
                    result = poll(bpy.context)
-                except Exception as exc:
+                except Exception as exc:  # noqa: BLE001
                    offenders.append((name, f"poll raised: {type(exc).__name__}: {exc}"))
                    continue
                if result:
@@ -119,7 +119,7 @@ class TestWallGizmoGroupsHideOnArrayChildSelection:
                    for name, cls in groups:
                        try:
                            result = cls.poll(bpy.context)
-                        except Exception as exc:
+                        except Exception as exc:  # noqa: BLE001
                            offenders.append((name, f"poll raised: {type(exc).__name__}: {exc}"))
                            continue
                        if result:
@@ -159,7 +159,7 @@ class TestWallOperatorsRejectArrayChildSelection:
                    for name, cls in ops:
                        try:
                            result = cls.poll(bpy.context)
-                        except Exception as exc:
+                        except Exception as exc:  # noqa: BLE001
                            offenders.append((name, f"poll raised: {type(exc).__name__}: {exc}"))
                            continue
                        if result:
@@ -36,7 +36,6 @@ import bpy
 import ifcopenshell
 import ifcopenshell.util.element
 import ifcopenshell.util.representation
-import ifcopenshell.util.unit
 import numpy as np
 import pytest
 from mathutils import Vector
@@ -1001,7 +1000,6 @@ def i_click_button_and_expect_error_error_msg(button, error_msg):

@given(parsers.parse('I evaluate expression "{expression}"'))
@when(parsers.parse('I evaluate expression "{expression}"'))
-@then(parsers.parse('I evaluate expression "{expression}"'))
 def i_evaluate_expression(expression):
    expression = replace_variables(expression)
    exec(expression)
@@ -1682,111 +1680,6 @@ def the_object_name_has_a_vertex_at_location(name, location):
    assert is_pass, f"No verts found at {location}: {verts}"


-def get_model_origin() -> Vector:
-    """Where the model was shifted to, in Blender units.
-
-    Geometry far from the origin is moved next to it so it keeps its precision,
-    and the shift is recorded as the model origin. Which vert of which object it
-    lands on is not something to depend on, so anything measured from it stays
-    put even when that choice changes.
-    """
-    props = bpy.context.scene.BIMGeoreferenceProperties
-    unit_scale = ifcopenshell.util.unit.calculate_unit_scale(an_ifc_file_exists())
-    return Vector([float(co) for co in props.model_origin.split(",")]) * unit_scale
-
-
-def get_world_verts(obj: bpy.types.Object) -> list[Vector]:
-    mesh = obj.data
-    assert isinstance(mesh, bpy.types.Mesh) and len(mesh.vertices), f"Object {obj.name} has no mesh"
-    return [obj.matrix_world @ v.co for v in mesh.vertices]
-
-
-def assert_vert_at_map_coordinates(obj: bpy.types.Object, vert: Vector, coordinates: str) -> None:
-    # Same conversion as the georeferencing calculator, which works in project
-    # units rather than Blender ones.
-    unit_scale = ifcopenshell.util.unit.calculate_unit_scale(an_ifc_file_exists())
-    enh = Vector(tool.Georeference.xyz2enh(tuple(co / unit_scale for co in vert)))
-    expected = Vector([float(co) for co in coordinates.split(",")])
-    assert (enh - expected).length < 0.05, f"Vert {vert} is at map coordinates {enh[:]} instead of {coordinates}"
-
-
-@then(
-    parsers.parse(
-        'the object "{name}" is at "{location}" relative to the model origin at map coordinates "{coordinates}"'
-    )
-)
-def the_object_name_is_at_location_relative_to_the_model_origin_at_map_coordinates(name, location, coordinates):
-    """For objects with no geometry to name a vert on.
-
-    The Blender location is only meaningful next to the origin everything was
-    shifted by, since the two move together, but the map coordinates hold still
-    either way.
-    """
-    obj = the_object_name_exists(name)
-    obj_location = obj.location + get_model_origin()
-    assert (
-        obj_location - Vector([float(co) for co in location.split(",")])
-    ).length < 0.05, f"Object is at {obj_location} relative to the model origin instead of {location}"
-    assert_vert_at_map_coordinates(obj, obj.matrix_world.translation, coordinates)
-
-
-@then(parsers.parse('the object "{name}" has a vert at "{location}" at map coordinates "{coordinates}"'))
-def the_object_name_has_a_vert_at_location_at_map_coordinates(name, location, coordinates):
-    """Check where a vert sits in Blender and where it is in the world.
-
-    Both matter: the Blender location is what the user sees, and checking only
-    the map coordinates would pass just as happily if the georeferencing maths
-    or the offsets it reads were wrong, since the same maths produces both.
-    """
-    obj = the_object_name_exists(name)
-    target = Vector([float(co) for co in location.split(",")])
-    verts = get_world_verts(obj)
-    vert = next((v for v in verts if (v - target).length < 0.001), None)
-    assert vert is not None, f"No vert found at {location}: {verts}"
-    assert_vert_at_map_coordinates(obj, vert, coordinates)
-
-
-@then(
-    parsers.parse(
-        'the object "{name}" has a vert at "{location}" relative to the model origin at map coordinates "{coordinates}"'
-    )
-)
-def the_object_name_has_a_vert_at_location_relative_to_the_model_origin_at_map_coordinates(name, location, coordinates):
-    """As above, for when the whole model has been shifted onto the origin.
-
-    Blender locations are then only meaningful relative to that origin, since
-    everything moves together with it.
-    """
-    obj = the_object_name_exists(name)
-    target = Vector([float(co) for co in location.split(",")]) - get_model_origin()
-    verts = get_world_verts(obj)
-    vert = next((v for v in verts if (v - target).length < 0.001), None)
-    assert vert is not None, f"No vert found at {location} relative to the model origin: {verts}"
-    assert_vert_at_map_coordinates(obj, vert, coordinates)
-
-
-@then(parsers.parse('the object "{name}" has its origin on a vertex'))
-def the_object_name_has_its_origin_on_a_vertex(name):
-    """Far away geometry is shifted onto one of its own verts, which keeps the
-    origin on the geometry and the local coordinates small enough to keep their
-    precision. Which vert that is does not matter."""
-    obj = the_object_name_exists(name)
-    mesh = obj.data
-    assert isinstance(mesh, bpy.types.Mesh) and len(mesh.vertices), f"Object {obj.name} has no mesh"
-    nearest = min(v.co.length for v in mesh.vertices)
-    assert nearest < 0.001, f"Object origin is {nearest} away from its nearest vert"
-
-
-@then("the model origin is on an object vertex")
-def the_model_origin_is_on_an_object_vertex():
-    for obj in bpy.data.objects:
-        if not isinstance(obj.data, bpy.types.Mesh):
-            continue
-        if any(v.length < 0.001 for v in get_world_verts(obj)):
-            return
-    assert False, "No object has a vert at the model origin"
-
-
@then(parsers.parse('the object "{name}" has no scale'))
 def the_object_name_has_no_scale(name):
    assert the_object_name_exists(name).scale == Vector(
@@ -1,5 +1,5 @@
 [tool.ruff]
 extend = "../pyproject.toml"
 lint.ignore = [
-  "unused-import",  # unused imports
+  "F401",  # unused imports
 ]
@@ -168,7 +168,7 @@ ifcopenshell_deploy_qt_runtime(BonsaiViewer)
 #      them explicitly. (In a static build these are absent from lib/
 #      and the glob just no-ops, so this rule is safe in both modes.)
 #
-#   2. Plug-ins (ifcopenshell_*.dylib, no `lib` prefix) — dlopen-only
+#   2. Plug-ins (ifcopenshell.*.dylib, no `lib` prefix) — dlopen-only
 #      deps the plug-in loader resolves at runtime. macdeployqt has
 #      no way to know about these.
 #
@@ -177,7 +177,7 @@ ifcopenshell_deploy_qt_runtime(BonsaiViewer)
 # inside the bundle), so plug-ins and core libs both find each other
 # on the first probe.
 #
-# The geometry-writer filter drops ifcopenshell_geometry_writer_*.dylib
+# The geometry-writer filter drops ifcopenshell.geometry.writer.*.dylib
 # (the per-schema OBJ / glTF / DAE / STP / IGS / SVG / TTL export
 # converters — heavy, viewer-irrelevant). Mirrors the Rocky workflow's
 # filter in `stage_runtime_payload` (see 27249770e).
@@ -195,7 +195,7 @@ if(APPLE)
    install(CODE [[
        set(_fw "${CMAKE_INSTALL_PREFIX}/BonsaiViewer.app/Contents/Frameworks")
        file(GLOB _ifc_dylibs "${CMAKE_INSTALL_PREFIX}/lib/*.dylib")
-        list(FILTER _ifc_dylibs EXCLUDE REGEX "ifcopenshell_geometry_writer_")
+        list(FILTER _ifc_dylibs EXCLUDE REGEX "ifcopenshell\\.geometry\\.writer\\.")
        if(_ifc_dylibs)
            message(STATUS "Staging IfcOpenShell dylibs (linked core + plug-ins) into BonsaiViewer.app/Contents/Frameworks")
            file(COPY ${_ifc_dylibs} DESTINATION "${_fw}")
@@ -70,7 +70,7 @@ std::optional<BasicElementInfo> ElementRegistry::findBasicElementInfo(uint32_t o
    return it->second;
 }

-std::optional<express::base> ElementRegistry::findEntity(uint32_t object_id) const {
+std::optional<express::Base> ElementRegistry::findEntity(uint32_t object_id) const {
    if (!loader_) return std::nullopt;

    auto info = findBasicElementInfo(object_id);
@@ -54,7 +54,7 @@ public:
    void removeModel(uint32_t session_model_id);
    std::vector<BasicElementInfo> basicElementInfoForModel(uint32_t session_model_id) const;
    std::optional<BasicElementInfo> findBasicElementInfo(uint32_t object_id) const;
-    std::optional<express::base> findEntity(uint32_t object_id) const;
+    std::optional<express::Base> findEntity(uint32_t object_id) const;

 private:
    void onSidecarElementsReady(uint32_t session_model_id,
@@ -44,7 +44,7 @@ Main components
    code.

 ``GeometryStreamer``
-    Runs ``ifcopenshell::geom::iterator`` on a worker thread for raw IFC loads. It emits a
+    Runs ``IfcGeom::Iterator`` on a worker thread for raw IFC loads. It emits a
    ``StreamedMesh`` once for each unique representation mesh and a
    ``StreamedInstance`` for each placed occurrence.

@@ -32,7 +32,7 @@
 #include "../../../ifcviewer/SceneLoader.h"
 #include "../../../ifcviewer/SidecarBuilder.h"
 #include "../../../ifcviewer/ViewportWindow.h"
-#include "../../../ifcgeom/serializer.h"
+#include "../../../ifcgeom/Serializer.h"
 #include "../../../serializers/document_serializer_plugin.h"

 #include <QDebug>
@@ -685,7 +685,7 @@ void convertIfcToDatabase(SessionState& session, QWidget& host) {
                throw ifcopenshell::exception("RDB serializer does not support streaming from an input filename");
            }

-            std::shared_ptr<ifcopenshell::geom::serializer> serializer = registry.create("rdb", context);
+            boost::shared_ptr<Serializer> serializer = registry.create("rdb", context);
            serializer->finalize();
        } catch (const std::exception& e) {
            *error_message = QString::fromUtf8(e.what());
@@ -791,7 +791,7 @@ void exportGeometryDatabase(SessionState& session, QWidget& host) {
                throw ifcopenshell::exception("RDB serializer does not support streaming from an input filename");
            }

-            std::shared_ptr<ifcopenshell::geom::serializer> serializer = registry.create("rdb", context);
+            boost::shared_ptr<Serializer> serializer = registry.create("rdb", context);
            serializer->finalize();
            serializer.reset();

@@ -75,16 +75,16 @@ QString formatCachedUnitScale(double meters_per_unit) {
    return QString("Cached scale: 1 unit = %1 m").arg(formatNumber(meters_per_unit));
 }

-std::string enumString(const ifcopenshell::attribute_value& av) {
+std::string enumString(const attribute_value& av) {
    if (av.isNull()) return {};
    if (av.type() != ifcopenshell::Argument_ENUMERATION) return {};
-    ifcopenshell::enumeration_reference enumeration = av;
+    enumeration_reference enumeration = av;
    return std::string(enumeration.value() ? enumeration.value() : "");
 }

-QString formatNamedUnit(const express::base& unit) {
+QString formatNamedUnit(const express::Base& unit) {
    if (!unit) return "—";
-    auto entity = unit.as<express::entity>();
+    auto entity = unit.as<express::Entity>();
    if (unit.declaration().is("IfcSIUnit")) {
        const std::string prefix = enumString(entity.get("Prefix"));
        const std::string name = enumString(entity.get("Name"));
@@ -109,7 +109,7 @@ void PropertiesPanelView::refresh(uint32_t object_id) {
    state.entity = {"No item selected", ""};

    auto entity = registry ? registry->findEntity(object_id)
-                           : std::optional<express::base>{};
+                           : std::optional<express::Base>{};
    if (entity) {
        state.entity.entity_class = QString::fromStdString(entity->declaration().name());
        if (auto predefined_type = get_predefined_type(*entity)) {
@@ -121,16 +121,16 @@ void PropertiesPanelView::refresh(uint32_t object_id) {
        }
        // Relationships: the construction type and the spatial container, shown
        // by name (falling back to the entity class when unnamed).
-        auto display_name = [](const express::base& related) -> QString {
+        auto display_name = [](const express::Base& related) -> QString {
            if (auto name = get_string_attribute(related, "Name"); name && !name->empty()) {
                return QString::fromStdString(*name);
            }
            return QString::fromStdString(related.declaration().name());
        };
-        if (express::base type = get_type(*entity)) {
+        if (express::Base type = get_type(*entity)) {
            state.relationships.append({"Type", display_name(type)});
        }
-        if (express::base container = get_container(*entity)) {
+        if (express::Base container = get_container(*entity)) {
            state.relationships.append({"Container", display_name(container)});
        }
        // Property sets (Pset_*) and quantity sets (Qto_* / BaseQuantities),
@@ -60,7 +60,7 @@ TreeNode* findNodeRecursive(QList<TreeNode>& nodes, const NodePath& path, int de
    return nullptr;
 }

-ItemKind kindOf(const express::base& element) {
+ItemKind kindOf(const express::Base& element) {
    const auto& declaration = element.declaration();
    if (declaration.is("IfcSite")) return ItemKind::Site;
    if (declaration.is("IfcBuilding")) return ItemKind::Building;
@@ -68,14 +68,14 @@ ItemKind kindOf(const express::base& element) {
    return ItemKind::Space;  // IfcSpace, IfcSpatialZone, …
 }

-QString displayName(const express::base& element) {
+QString displayName(const express::Base& element) {
    if (auto name = get_string_attribute(element, "Name"); name && !name->empty()) {
        return QString::fromStdString(*name);
    }
    return QString::fromStdString(element.declaration().name());
 }

-TreeNode buildNode(const express::base& element) {
+TreeNode buildNode(const express::Base& element) {
    TreeNode node;
    node.name = displayName(element);
    node.kind = kindOf(element);
@@ -46,6 +46,6 @@ py-modules = ["bsdd","bsdd_json","type_hints"]

 [tool.ruff]
 extend = "../../pyproject.toml"
-lint.extend-select = [
-  "unused-import",  # unused imports
+lint.select = [
+  "F401",  # unused imports
 ]
@@ -3,10 +3,7 @@ IS_STABLE:=FALSE
 PYTHON:=python3
 PIP:=pip3
 VERSION:=$(shell cat ../../VERSION)
-VERSION_BASE:=$(shell sed -E 's/[[:alpha:]]+[0-9]+$$//' ../../VERSION)
-VERSION_PYTHON:=$(shell sed 's/alpha/a/' ../../VERSION)
 VERSION_DATE:=$(shell date '+%y%m%d')
-VERSION_DAILY:=$(VERSION_BASE)a$(VERSION_DATE)
 SED:=sed -i
 VENV_BIN:=bin

@@ -33,18 +30,18 @@ dist:
 	cp pyproject.toml build/
 	if [ -f README.md ]; then cp README.md build/; fi
 ifeq ($(IS_STABLE), TRUE)
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_PYTHON)"/' build/pyproject.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/pyproject.toml
 ifdef IS_MODULE
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_PYTHON)"/' build/$(PACKAGE_NAME)
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/$(PACKAGE_NAME)
 else
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_PYTHON)"/' build/$(PACKAGE_NAME)/__init__.py
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/$(PACKAGE_NAME)/__init__.py
 endif
 else
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_DAILY)"/' build/pyproject.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)a$(VERSION_DATE)"/' build/pyproject.toml
 ifdef IS_MODULE
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_DAILY)"/' build/$(PACKAGE_NAME)
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/$(PACKAGE_NAME)
 else
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION_DAILY)"/' build/$(PACKAGE_NAME)/__init__.py
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/$(PACKAGE_NAME)/__init__.py
 endif
 endif
 	cd build && $(PYTHON) -m venv env && . env/$(VENV_ACTIVATE) && $(PIP) install build
@@ -50,7 +50,7 @@
 #include "ifcparse/hierarchy_helper.h"
 #include "plugin/plugin.h"

-#include "../ifcgeom/serialization/serialization.h"
+#include "../ifcgeom/Serialization/Serialization.h"

 #if USE_VLD
 #include <vld.h>
@@ -101,7 +101,7 @@ int main() {
 	// IfcFacetedBRep. If it would not be a polyhedron, serialise() can only be successful when linked
 	// to the IFC4 model and with `advanced` set to `true` which introduces IfcAdvancedFace. It would
 	// return `0` otherwise.
-	auto building_shape = ifcopenshell::geom::serialise(file, building_shell, false).as<IfcSchema::IfcProductDefinitionShape>();
+	auto building_shape = IfcGeom::serialise(file, building_shell, false).as<IfcSchema::IfcProductDefinitionShape>();
 	
 	file.add_entity(building_shape);
 	auto building_representations = building_shape.Representations();
@@ -117,9 +117,9 @@ int main() {
 	TopoDS_Shape shape;
 	createGroundShape(shape);

-	auto ground_representation = ifcopenshell::geom::serialise(file, shape, true);
+	auto ground_representation = IfcGeom::serialise(file, shape, true);
 	if (!ground_representation) {
-        ground_representation = ifcopenshell::geom::tesselate(file, shape, 100.);
+        ground_representation = IfcGeom::tesselate(file, shape, 100.);
 	}
 	file.getSingle<IfcSchema::IfcSite>().setRepresentation(ground_representation.as<IfcSchema::IfcProductDefinitionShape>());
 	
@@ -131,13 +131,13 @@ int main() {
 	setSurfaceColour(file, ground_representation.as<IfcSchema::IfcProductDefinitionShape>(), 0.15, 0.25, 0.05);

    /*
-	// Note that IFC lacks elementary surfaces that STEP does have, such as spherical_surface.
-	// BRepBuilderAPI_NurbsConvert can be used to serialize such surfaces as nurbs surfaces.
+    // Note that IFC lacks elementary surfaces that STEP does have, such as spherical_surface.
+    // BRepBuilderAPI_NurbsConvert can be used to serialize such surfaces as nurbs surfaces.
 	TopoDS_Shape sphere = BRepPrimAPI_MakeSphere(gp_Pnt(), 1000.).Shape();
-	auto sphere_representation = ifcopenshell::geom::serialise(file, sphere, true);
+	IfcSchema::IfcProductDefinitionShape* sphere_representation = IfcGeom::serialise(sphere, true);
 	if (S(IfcSchema::Identifier) == "IFC4") {
 		sphere = BRepBuilderAPI_NurbsConvert(sphere, true).Shape();
-		sphere_representation = ifcopenshell::geom::serialise(file, sphere, true);
+		sphere_representation = IfcGeom::serialise(sphere, true);
 	}
    */

@@ -47,7 +47,7 @@
 #include "ifcparse/hierarchy_helper.h"
 #include "plugin/plugin.h"

-#include "../ifcgeom/serialization/serialization.h"
+#include "../ifcgeom/Serialization/Serialization.h"

 #if USE_VLD
 #include <vld.h>
@@ -301,7 +301,7 @@ int main() {
 	// will be tessellated using the deflection specified.
 	TopoDS_Shape shape;
 	createGroundShape(shape);
-	auto ground_representation = ifcopenshell::geom::tesselate(file, shape, 100.).as<IfcSchema::IfcProductDefinitionShape>();
+	auto ground_representation = IfcGeom::tesselate(file, shape, 100.).as<IfcSchema::IfcProductDefinitionShape>();
 	file.getSingle<IfcSchema::IfcSite>().setRepresentation(ground_representation);

 	GProp_GProps prop;
@@ -70,10 +70,10 @@ typedef IfcSchema::IfcBuildingElement element_t;
 typedef IfcSchema::IfcBuiltElement element_t;
 #endif

-std::string format_string(const ifcopenshell::attribute_value& argument) {
+std::string format_string(const attribute_value& argument) {
 	// Argument is a runtime tagged variant for the various data types in a IFC model,
 	// in this particular case we only care about flattening it to a string.
-	// @todo mostly duplicated from xml_serializer.cpp
+	// @todo mostly duplicated from XmlSerializer.cpp
 	if (argument.isNull()) {
 		return "-";
 	}
@@ -194,7 +194,7 @@ void get_psets_s(element_properties& props, const typename Schema::IfcObjectDefi
 	}
 }

-element_properties get_psets(const express::base& inst) {
+element_properties get_psets(const express::Base& inst) {
 	element_properties props;
 	if (auto object_definition = inst.as<IfcSchema::IfcObjectDefinition>()) {
 		get_psets_s<IfcSchema>(props, object_definition);
@@ -213,7 +213,7 @@ int main(int argc, char** argv) {
 #endif

    // Redirect the output (both progress and log) to stdout
-    ifcopenshell::logger::root().set_output(&std::cout, &std::cout);
+    ::logger::root().set_output(&std::cout, &std::cout);

    // Parse the IFC file provided in argv[1]
    ifcopenshell::file file(argv[1]);
@@ -0,0 +1,97 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('ViewDefinition[DesignTransferView]'),'2;1');
+FILE_NAME('IfcParseExamples_test.ifc','2025-12-12T13:49:19+05:00',(''),(''),'IfcOpenShell 0.0.0','Bonsai 0.8.5-alpha251212-a47cbc3','Nobody');
+FILE_SCHEMA(('IFC2X3'));
+ENDSEC;
+DATA;
+#1=IFCPERSON('HSeldon','Seldon','Hari',$,$,$,$,$);
+#2=IFCORGANIZATION('APTR','Aperture Science',$,$,$);
+#3=IFCPERSONANDORGANIZATION(#1,#2,$);
+#4=IFCACTORROLE(.USERDEFINED.,'CONTRIBUTOR',$);
+#5=IFCORGANIZATION('IfcOpenShell','IfcOpenShell','IfcOpenShell is an open source software library that helps users and software developers to work with IFC data.',(#4),(#6));
+#6=IFCTELECOMADDRESS(.USERDEFINED.,$,'WEBPAGE',$,$,$,$,'https://ifcopenshell.org');
+#7=IFCAPPLICATION(#5,'0.8.5','Bonsai','Bonsai-0.8.5');
+#8=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
+#9=IFCPROJECT('3GSSvm5SP5U96O5iar8uYb',#8,'My Project',$,$,$,$,(#22,#34),#17);
+#10=IFCSIUNIT(*,.LENGTHUNIT.,$,.METRE.);
+#11=IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.);
+#12=IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.);
+#13=IFCDIMENSIONALEXPONENTS(0,0,0,0,0,0,0);
+#14=IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
+#15=IFCMEASUREWITHUNIT(IFCREAL(0.0174532925199433),#14);
+#16=IFCCONVERSIONBASEDUNIT(#13,.PLANEANGLEUNIT.,'degree',#15);
+#17=IFCUNITASSIGNMENT((#12,#10,#16,#11));
+#18=IFCCARTESIANPOINT((0.,0.,0.));
+#19=IFCDIRECTION((0.,0.,1.));
+#20=IFCDIRECTION((1.,0.,0.));
+#21=IFCAXIS2PLACEMENT3D(#18,#19,#20);
+#22=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,1.E-05,#21,$);
+#23=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Model',*,*,*,*,#22,$,.MODEL_VIEW.,$);
+#24=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Model',*,*,*,*,#22,$,.GRAPH_VIEW.,$);
+#25=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Box','Model',*,*,*,*,#22,$,.MODEL_VIEW.,$);
+#26=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.SECTION_VIEW.,$);
+#27=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.ELEVATION_VIEW.,$);
+#28=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.MODEL_VIEW.,$);
+#29=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Model',*,*,*,*,#22,$,.PLAN_VIEW.,$);
+#30=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Profile','Model',*,*,*,*,#22,$,.ELEVATION_VIEW.,$);
+#31=IFCCARTESIANPOINT((0.,0.));
+#32=IFCDIRECTION((1.,0.));
+#33=IFCAXIS2PLACEMENT2D(#31,#32);
+#34=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Plan',2,1.E-05,#33,$);
+#35=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Plan',*,*,*,*,#34,$,.GRAPH_VIEW.,$);
+#36=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Plan',*,*,*,*,#34,$,.PLAN_VIEW.,$);
+#37=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Plan',*,*,*,*,#34,$,.PLAN_VIEW.,$);
+#38=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Plan',*,*,*,*,#34,$,.REFLECTED_PLAN_VIEW.,$);
+#39=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520605,#3,#7,1765520605);
+#40=IFCSITE('2Ys4j4OOf3x9UYeALDJ_g3',#39,'My Site',$,$,#66,$,$,.ELEMENT.,$,$,$,$,$);
+#46=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520605,#3,#7,1765520605);
+#47=IFCBUILDING('3e580MQFTCD9tCSaZWRPi9',#46,'My Building',$,$,#73,$,$,.ELEMENT.,$,$,$);
+#53=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520605,#3,#7,1765520605);
+#54=IFCBUILDINGSTOREY('3XFkAr6KbAsP5wR3gxi3my',#53,'My Storey',$,$,#80,$,$,.ELEMENT.,$);
+#60=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
+#61=IFCRELAGGREGATES('2OWfFyDQn0qP0Vd6NWGX7k',#60,$,$,#9,(#40));
+#62=IFCCARTESIANPOINT((0.,0.,0.));
+#63=IFCDIRECTION((0.,0.,1.));
+#64=IFCDIRECTION((1.,0.,0.));
+#65=IFCAXIS2PLACEMENT3D(#62,#63,#64);
+#66=IFCLOCALPLACEMENT($,#65);
+#67=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
+#68=IFCRELAGGREGATES('3_X_vfPpXDaO3NODBJgmSp',#67,$,$,#40,(#47));
+#69=IFCCARTESIANPOINT((0.,0.,0.));
+#70=IFCDIRECTION((0.,0.,1.));
+#71=IFCDIRECTION((1.,0.,0.));
+#72=IFCAXIS2PLACEMENT3D(#69,#70,#71);
+#73=IFCLOCALPLACEMENT(#66,#72);
+#74=IFCOWNERHISTORY(#3,#7,.READWRITE.,.ADDED.,1765520605,#3,#7,1765520605);
+#75=IFCRELAGGREGATES('3ScF98CZD3pAa0SW$mhBHF',#74,$,$,#47,(#54));
+#76=IFCCARTESIANPOINT((0.,0.,0.));
+#77=IFCDIRECTION((0.,0.,1.));
+#78=IFCDIRECTION((1.,0.,0.));
+#79=IFCAXIS2PLACEMENT3D(#76,#77,#78);
+#80=IFCLOCALPLACEMENT(#73,#79);
+#110=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765529359,#3,#7,1765520632);
+#111=IFCWALL('1lfiJzSCH1a8vjDuSLL4Ii',#110,'Cube',$,$,#203,$,$);
+#112=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765520818,#3,#7,1765520632);
+#113=IFCRELCONTAINEDINSPATIALSTRUCTURE('2Gqx6vP7jB4x_h65Tawn0f',#112,$,$,(#111,#182,#150),#54);
+#149=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765529359,#3,#7,1765520810);
+#150=IFCWINDOW('1eE0btB_54tBL59wLXKO1B',#149,'Cube',$,$,#208,$,$,$,$);
+#181=IFCOWNERHISTORY(#3,#7,.READWRITE.,.MODIFIED.,1765529359,#3,#7,1765520818);
+#182=IFCBUILDINGELEMENTPART('0fmaoBJgz0kPBavO$EJkPn',#181,'Cube',$,$,#198,$,$);
+#194=IFCCARTESIANPOINT((-3.82147288322449,-0.987768530845642,1.78445267677307));
+#195=IFCDIRECTION((0.,0.,1.));
+#196=IFCDIRECTION((1.,0.,0.));
+#197=IFCAXIS2PLACEMENT3D(#194,#195,#196);
+#198=IFCLOCALPLACEMENT(#80,#197);
+#199=IFCCARTESIANPOINT((0.,0.,0.));
+#200=IFCDIRECTION((0.,0.,1.));
+#201=IFCDIRECTION((1.,0.,0.));
+#202=IFCAXIS2PLACEMENT3D(#199,#200,#201);
+#203=IFCLOCALPLACEMENT(#80,#202);
+#204=IFCCARTESIANPOINT((0.,4.25822639465332,0.));
+#205=IFCDIRECTION((0.,0.,1.));
+#206=IFCDIRECTION((1.,0.,0.));
+#207=IFCAXIS2PLACEMENT3D(#204,#205,#206);
+#208=IFCLOCALPLACEMENT(#80,#207);
+ENDSEC;
+END-ISO-10303-21;
@@ -0,0 +1,147 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates various representations from                          *
+ * IfcArbitraryOpenProfileDefs and its subclass IfcCenterLineProfileDef         *
+ *                                                                              *
+ ********************************************************************************/
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc4
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+boost::none_t const null = boost::none;
+static int i = 0;
+
+void create_product_from_item(hierarchy_helper& file, IfcSchema::IfcRepresentationItem* item, const std::string& s) {
+	IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
+		guid(), 0, S("product"), null, null, 0, 0, null, null);
+	file.addBuildingProduct(product);
+	product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	product->setObjectPlacement(file.addLocalPlacement(0, 120 * i++));
+
+	IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list());
+	IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list());
+	items->push(item);
+
+	if (s == "GeometricSet") {
+		IfcSchema::IfcGeometricSet* set = new IfcSchema::IfcGeometricSet(items->generalize());
+		file.add_entity(set);
+		items = IfcSchema::IfcRepresentationItem::list::ptr(new IfcSchema::IfcRepresentationItem::list());
+		items->push(set);
+	}
+		
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), s, items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
+	file.add_entity(rep);
+	file.add_entity(shape);
+		
+	product->setRepresentation(shape);
+}
+
+void create_surfaces_from_profile(hierarchy_helper& file, IfcSchema::IfcProfileDef* profile) {
+	IfcSchema::IfcSurfaceOfLinearExtrusion* extrusion = new IfcSchema::IfcSurfaceOfLinearExtrusion(profile, file.addPlacement3d(), file.addTriplet<IfcSchema::IfcDirection>(0, 0, 1), 100.);
+	file.add_entity(extrusion);
+
+	IfcSchema::IfcAxis1Placement* ax1 = new IfcSchema::IfcAxis1Placement(file.addTriplet<IfcSchema::IfcCartesianPoint>(0,100,0), file.addTriplet<IfcSchema::IfcDirection>(1,0,0));
+	IfcSchema::IfcSurfaceOfRevolution* revolution = new IfcSchema::IfcSurfaceOfRevolution(profile, file.addPlacement3d(), ax1);
+	file.add_entity(ax1);
+	file.add_entity(revolution);
+
+	create_product_from_item(file, extrusion, "GeometricSet");
+	create_product_from_item(file, revolution, "GeometricSet");
+}
+
+void create_solids_from_profile(hierarchy_helper& file, IfcSchema::IfcProfileDef* profile) {
+	IfcSchema::IfcExtrudedAreaSolid* extrusion = new IfcSchema::IfcExtrudedAreaSolid(profile, file.addPlacement3d(), file.addTriplet<IfcSchema::IfcDirection>(0, 0, 1), 100.);
+	file.add_entity(extrusion);
+
+	IfcSchema::IfcAxis1Placement* ax1 = new IfcSchema::IfcAxis1Placement(file.addTriplet<IfcSchema::IfcCartesianPoint>(0,100,0), file.addTriplet<IfcSchema::IfcDirection>(1,0,0));
+	IfcSchema::IfcRevolvedAreaSolid* revolution1 = new IfcSchema::IfcRevolvedAreaSolid(profile, file.addPlacement3d(), ax1, 360.);
+	IfcSchema::IfcRevolvedAreaSolid* revolution2 = new IfcSchema::IfcRevolvedAreaSolid(profile, file.addPlacement3d(), ax1, 90.);
+	file.add_entity(ax1);
+	file.add_entity(revolution1);
+	file.add_entity(revolution2);
+
+	create_product_from_item(file, extrusion, "SweptSolid");
+	create_product_from_item(file, revolution1, "SweptSolid");
+	create_product_from_item(file, revolution2, "SweptSolid");
+}
+
+void create_products_from_curve(hierarchy_helper& file, IfcSchema::IfcBoundedCurve* curve) {
+	IfcSchema::IfcArbitraryOpenProfileDef* open = new IfcSchema::IfcArbitraryOpenProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_CURVE, null, curve);
+	IfcSchema::IfcCenterLineProfileDef* center_line = new IfcSchema::IfcCenterLineProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA, null, curve, 10.);
+	file.add_entity(open);
+	file.add_entity(center_line);
+
+	create_surfaces_from_profile(file, open);
+	create_solids_from_profile(file, center_line);
+}
+
+int main(int argc, char** argv) {
+	const char filename[] = "IfcArbitraryOpenProfileDef.ifc";
+	hierarchy_helper file;
+	file.header().file_name().name(filename);
+
+	double coords1[] = {-50.0, 0.0};
+	double coords2[] = { 50.0, 0.0};
+	IfcSchema::IfcCartesianPoint::list::ptr points (new IfcSchema::IfcCartesianPoint::list());
+	points->push(new IfcSchema::IfcCartesianPoint(std::vector<double>(coords1, coords1+2)));
+	points->push(new IfcSchema::IfcCartesianPoint(std::vector<double>(coords2, coords2+2)));
+	file.addEntities(points->generalize());
+	IfcSchema::IfcPolyline* poly = new IfcSchema::IfcPolyline(points);
+	file.add_entity(poly);
+
+	create_products_from_curve(file, poly);
+
+	IfcSchema::IfcEllipse* ellipse = new IfcSchema::IfcEllipse(file.addPlacement2d(), 50., 25.);
+	file.add_entity(ellipse);
+	IfcEntityList::ptr trim1(new IfcEntityList);
+	IfcEntityList::ptr trim2(new IfcEntityList);
+	trim1->push(new IfcSchema::IfcParameterValue(  0.));
+	trim2->push(new IfcSchema::IfcParameterValue(180.));
+	IfcSchema::IfcTrimmedCurve* trim = new IfcSchema::IfcTrimmedCurve(ellipse, trim1, trim2, true, IfcSchema::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	file.add_entity(trim);
+
+	create_products_from_curve(file, trim);
+
+	file.getSingle<Ifc2x3::IfcProject>()->setName("IfcArbitraryOpenProfileDef");
+
+	std::ofstream f(filename);
+	f << file;
+}
@@ -0,0 +1,150 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates extrusions of parameterized profiles.                 *
+ *                                                                              *
+ ********************************************************************************/
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc2x3
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+boost::none_t const null = boost::none;
+
+#ifdef SCHEMA_IfcIShapeProfileDef_HAS_FlangeEdgeRadius
+#define IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS , null, null
+#else
+#define IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcLShapeProfileDef_HAS_CentreOfGravityInX
+#define IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS , null, null
+#else
+#define IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcTShapeProfileDef_HAS_CentreOfGravityInY
+#define IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS , null
+#else
+#define IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcCShapeProfileDef_HAS_CentreOfGravityInX
+#define IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS , null
+#else
+#define IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+int main(int argc, char** argv) {
+	const char filename[] = "IfcCompositeProfileDef.ifc";
+	hierarchy_helper file;
+	file.header().file_name().name(filename);
+
+	double coords1[] = {100.0, 0.0};
+	double coords2[] = {200.0, 0.0};
+	double coords3[] = {300.0, 0.0};
+
+	IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list());
+
+	IfcSchema::IfcCartesianTransformationOperator2D* transform1 = new IfcSchema::IfcCartesianTransformationOperator2D(file.addDoublet<IfcSchema::IfcDirection>(1, 0), file.addDoublet<IfcSchema::IfcDirection>(0, -1), file.addDoublet<IfcSchema::IfcCartesianPoint>(40, 0), null);
+	IfcSchema::IfcCartesianTransformationOperator2D* transform2 = new IfcSchema::IfcCartesianTransformationOperator2D(file.addDoublet<IfcSchema::IfcDirection>(0, -1), file.addDoublet<IfcSchema::IfcDirection>(1, 0), file.addDoublet<IfcSchema::IfcCartesianPoint>(40, 0), 0.3);
+	
+	IfcSchema::IfcProfileDef* p1 = new IfcSchema::IfcIShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, file.addPlacement2d(),    25.0,    50.0,     5.0,     5.0,     2.0 IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS);
+
+	IfcSchema::IfcProfileDef* p2 = new IfcSchema::IfcLShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, file.addPlacement2d(),    50.0,    25.0,     5.0,      1.0,     2.0,     2.0 IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS);
+
+	IfcSchema::IfcProfileDef* p3 = new IfcSchema::IfcTShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, file.addPlacement2d(),    50.0,    40.0,    10.0,     10.0,     3.0,     2.0,     1.0,     2.0,     2.0 IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS);
+
+	IfcSchema::IfcProfileDef* p4 = new IfcSchema::IfcCShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, file.addPlacement2d(80.),    50.0,    25.0,     5.0,    10.0,     2.0 IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS);
+
+	file.add_entity(p2);
+	file.add_entity(p3);
+	
+	file.add_entity(transform1);
+	file.add_entity(transform2);
+	
+	IfcSchema::IfcDerivedProfileDef* p5 = new IfcSchema::IfcDerivedProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA, null, p2, transform1, null);
+	IfcSchema::IfcDerivedProfileDef* p6 = new IfcSchema::IfcDerivedProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA, null, p3, transform2, null);
+	
+	profiles->push(p1);
+	profiles->push(p5);
+	profiles->push(p6);
+	profiles->push(p4);
+
+	file.addEntities(profiles->generalize());
+
+	IfcSchema::IfcCompositeProfileDef* composite = new IfcSchema::IfcCompositeProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA, S("IFC"), profiles, null);
+
+	IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
+			guid(), 0, S("profile"), null, null, 0, 0, null, null);
+
+	file.addBuildingProduct(product);
+
+	product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	product->setObjectPlacement(file.addLocalPlacement());
+
+	IfcSchema::IfcExtrudedAreaSolid* solid = new IfcSchema::IfcExtrudedAreaSolid(composite,
+		file.addPlacement3d(), file.addTriplet<IfcSchema::IfcDirection>(0, 0, 1), 20.0);
+
+	file.add_entity(composite);
+	file.add_entity(solid);
+		
+	IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list());
+	IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list());
+		
+	items->push(solid);
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), S("SweptSolid"), items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
+	file.add_entity(rep);
+	file.add_entity(shape);
+		
+	product->setRepresentation(shape);
+
+	file.getSingle<IfcSchema::IfcProject>()->setName("IfcCompositeProfileDef");
+
+	std::ofstream f(filename);
+	f << file;
+}
@@ -0,0 +1,200 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates a Constructive Solid Geometry example                 *
+ *                                                                              *
+ ********************************************************************************/
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc2x3
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+boost::none_t const null = boost::none;
+
+class Node {
+private:
+	typedef enum {
+		OP_ADD, OP_SUBTRACT, OP_INTERSECT, OP_TERMINAL
+	} Op;
+	typedef enum {
+		PRIM_BOX, PRIM_CONE, PRIM_CYLINDER, PRIM_PYRAMID, PRIM_SPHERE
+	} Prim;
+
+	double x,y,z, zx,zy,zz, xx,xy,xz, a,b,c;
+	const Node *left, *right;
+	
+	Op op;
+	Prim prim;
+
+	Node& operate(Op op, const Node& p) {
+		left = new Node(*this);
+		right = new Node(p);
+		this->op = op;
+		return *this;
+	}
+
+	Node(Prim p, double la, double lb=0., double lc=0.)
+		: prim(p), op(OP_TERMINAL),
+		  x(0.), y(0.), z(0.), 
+		  zx(0.), zy(0.), zz(1.), 
+		  xx(1.), xy(0.), xz(0.), 
+		  a(la), b(lb), c(lc) {}
+public:
+	static Node Sphere(double r) {
+		return Node(PRIM_SPHERE, r);
+	}
+	static Node Box(double dx, double dy, double dz) {
+		return Node(PRIM_BOX, dx, dy, dz);
+	}
+	static Node Pyramid(double dx, double dy, double dz) {
+		return Node(PRIM_PYRAMID, dx, dy, dz);
+	}
+	static Node Cylinder(double r, double h) {
+		return Node(PRIM_CYLINDER, r, h);
+	}
+	static Node Cone(double r, double h) {
+		return Node(PRIM_CONE, r, h);
+	}
+
+	Node& move(
+		double px = 0., double py = 0., double pz = 0., 
+		double zx = 0., double zy = 0., double zz = 1., 
+		double xx = 1., double xy = 0., double xz = 0.) 
+	{
+		this->x = px; this->y = py;	this->z = pz;
+		this->zx = zx; this->zy = zy; this->zz = zz;
+		this->xx = xx; this->xy = xy; this->xz = xz;
+		return *this;
+	}
+
+	Node& add(const Node& p) {
+		return operate(OP_ADD, p);
+	}
+	Node& subtract(const Node& p) {
+		return operate(OP_SUBTRACT, p);
+	}
+	Node& intersect(const Node& p) {
+		return operate(OP_INTERSECT, p);
+	}
+
+	IfcSchema::IfcRepresentationItem* serialize(hierarchy_helper& file) const {
+		IfcSchema::IfcRepresentationItem* my;
+		if (op == OP_TERMINAL) {
+			IfcSchema::IfcAxis2Placement3D* place = file.addPlacement3d(x,y,z,zx,zy,zz,xx,xy,xz);
+			if (prim == PRIM_SPHERE) {
+				my = new IfcSchema::IfcSphere(place, a);
+			} else if (prim == PRIM_BOX) {
+				my = new IfcSchema::IfcBlock(place, a, b, c);
+			} else if (prim == PRIM_PYRAMID) {
+				my = new IfcSchema::IfcRectangularPyramid(place, a, b, c);
+			} else if (prim == PRIM_CYLINDER) {
+				my = new IfcSchema::IfcRightCircularCylinder(place, b, a);
+			} else if (prim == PRIM_CONE) {
+				my = new IfcSchema::IfcRightCircularCone(place, b, a);
+			}
+		} else {
+			IfcSchema::IfcBooleanOperator::IfcBooleanOperator o;
+			if (op == OP_ADD) {
+				o = IfcSchema::IfcBooleanOperator::IfcBooleanOperator_UNION;
+			} else if (op == OP_SUBTRACT) {
+				o = IfcSchema::IfcBooleanOperator::IfcBooleanOperator_DIFFERENCE;
+			} else if (op == OP_INTERSECT) {
+				o = IfcSchema::IfcBooleanOperator::IfcBooleanOperator_INTERSECTION;
+			}
+			my = new IfcSchema::IfcBooleanResult(o, left->serialize(file), right->serialize(file));
+		}
+		file.add_entity(my);
+		return my;
+	}
+};
+
+int main(int argc, char** argv) {
+	const char filename[] = "IfcCsgPrimitive.ifc";
+	hierarchy_helper file;
+	file.header().file_name().name(filename);
+
+	IfcSchema::IfcRepresentationItem* csg1 = Node::Box(8000.,6000.,3000.).subtract(
+		Node::Box(7600.,5600.,2800.).move(200.,200.,200.)
+	).add(
+		Node::Pyramid(8000.,6000.,3000.).move(0,0,3000.).add(
+			Node::Cylinder(1000.,4000.).move(4000.,1000.,4000., 0.,1.,0.)
+		).subtract(
+			Node::Pyramid(7600.,5600.,2800.).move(200.,200.,3000.)
+		).subtract(
+			Node::Cylinder(900.,4000.).move(4000.,1000.,4000., 0.,1.,0.).intersect(
+				Node::Box(2000.,4000.,1000.).move(3000.,1000.,4000.)
+			)
+		)
+	).serialize(file);
+
+	const double x = 1000.; const double y = -4000.;
+
+	IfcSchema::IfcRepresentationItem* csg2 = Node::Sphere(5000.).move(x,y,-4500.).intersect(
+		Node::Box(6000., 6000., 6000.).move(x-3000., y-3000., 0.)
+	).add(
+		Node::Cone(500., 3000.).move(x,y).add(
+			Node::Cone(1500., 1000.).move(x,y, 900.).add(
+				Node::Cone(1100., 1000.).move(x,y, 1800.).add(
+					Node::Cone(750., 600.).move(x,y, 2700.)
+	)))).serialize(file);
+
+	IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
+			guid(), 0, S("IfcCsgPrimitive"), null, null, 0, 0, null, null);
+
+	file.addBuildingProduct(product);
+
+	product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	product->setObjectPlacement(file.addLocalPlacement());
+		
+	IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list());
+	IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list());
+		
+	items->push(csg1);
+	items->push(csg2);
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), S("CSG"), items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(null, null, reps);
+	file.add_entity(rep);
+	file.add_entity(shape);
+		
+	product->setRepresentation(shape);
+
+	file.getSingle<IfcSchema::IfcProject>()->setName("IfcCompositeProfileDef");
+
+	std::ofstream f(filename);
+	f << file;
+}
@@ -0,0 +1,161 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates profiles of trimmed ellipses.                         *
+ *                                                                              *
+ ********************************************************************************/
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc2x3
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+boost::none_t const null = boost::none;
+
+#ifdef SCHEMA_HAS_IfcSegment
+typedef IfcSchema::IfcSegment curve_segment_tt;
+#else
+typedef IfcSchema::IfcCompositeCurveSegment curve_segment_tt;
+#endif
+
+typedef struct {
+	double r1;
+	double r2;
+	double t1;
+	double t2;
+} EllipsePie;
+
+static int i = 0;
+
+void create_testcase_for(hierarchy_helper& file, const EllipsePie& pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference pref) {
+	const double deg = 1. / 180. * 3.141592653;
+	double flt1[] = {0.                      , 0.                      };
+	double flt2[] = {pie.r1 * cos(pie.t1*deg), pie.r2 * sin(pie.t1*deg)};
+	double flt3[] = {pie.r1 * cos(pie.t2*deg), pie.r2 * sin(pie.t2*deg)};
+
+	std::vector<double> coords1(flt1, flt1 + 2);
+	std::vector<double> coords2(flt2, flt2 + 2);
+	std::vector<double> coords3(flt3, flt3 + 2);
+	
+	IfcSchema::IfcCartesianPoint* p1 = new IfcSchema::IfcCartesianPoint(coords1);
+	IfcSchema::IfcCartesianPoint* p2 = new IfcSchema::IfcCartesianPoint(coords2);
+	IfcSchema::IfcCartesianPoint* p3 = new IfcSchema::IfcCartesianPoint(coords3);
+	
+	IfcSchema::IfcCartesianPoint::list::ptr points(new IfcSchema::IfcCartesianPoint::list());
+	points->push(p3);
+	points->push(p1);
+	points->push(p2);
+	file.addEntities(points->generalize());
+
+	
+	IfcSchema::IfcEllipse* ellipse = new IfcSchema::IfcEllipse(file.addPlacement2d(), pie.r1, pie.r2);
+	file.addEntity(ellipse);
+	aggregate_of_instance::ptr trim1(new aggregate_of_instance);
+    aggregate_of_instance::ptr trim2(new aggregate_of_instance);
+	if (pref == IfcSchema::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER) {
+		trim1->push(new IfcSchema::IfcParameterValue(pie.t1));
+		trim2->push(new IfcSchema::IfcParameterValue(pie.t2));
+	} else {
+		trim1->push(p2);
+		trim2->push(p3);
+	}
+	IfcSchema::IfcTrimmedCurve* trim = new IfcSchema::IfcTrimmedCurve(ellipse, trim1->as<IfcSchema::IfcTrimmingSelect>(), trim2->as<IfcSchema::IfcTrimmingSelect>(), true, pref);
+	file.addEntity(trim);
+	
+	curve_segment_tt::list::ptr segments(new curve_segment_tt::list());
+	IfcSchema::IfcCompositeCurveSegment* s2 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTINUOUS, true, trim);
+	
+	IfcSchema::IfcPolyline* poly = new IfcSchema::IfcPolyline(points);
+	file.addEntity(poly);
+	IfcSchema::IfcCompositeCurveSegment* s1 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTINUOUS, true, poly);
+	segments->push(s1);
+	
+	segments->push(s2);
+	file.addEntities(segments->generalize());
+	
+	IfcSchema::IfcCompositeCurve* ccurve = new IfcSchema::IfcCompositeCurve(segments, false);
+	IfcSchema::IfcArbitraryClosedProfileDef* profile = new IfcSchema::IfcArbitraryClosedProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA, null, ccurve);
+	file.addEntity(ccurve);
+	file.addEntity(profile);
+
+	IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
+		guid(), 0, S("profile"), null, null, 0, 0, null, null);
+	file.addBuildingProduct(product);
+	product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	product->setObjectPlacement(file.addLocalPlacement(0, 200 * i++));
+
+	IfcSchema::IfcExtrudedAreaSolid* solid = new IfcSchema::IfcExtrudedAreaSolid(profile,
+		file.addPlacement3d(), file.addTriplet<IfcSchema::IfcDirection>(0, 0, 1), 20.0);
+
+	file.add_entity(solid);
+		
+	IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list());
+	IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list());
+		
+	items->push(solid);
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), S("SweptSolid"), items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
+	file.add_entity(rep);
+	file.add_entity(shape);
+		
+	product->setRepresentation(shape);
+}
+
+int main(int argc, char** argv) {
+	const std::string filename = "ellipse_pies.ifc";
+	hierarchy_helper file;
+	{ EllipsePie pie = {80., 50.,  0., 150.};
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);}
+	{ EllipsePie pie = {80,  50., 30., 300.};
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);}
+	{ EllipsePie pie = {80,  50., 300., 30.};
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);}
+	{ EllipsePie pie = {50., 80.,  0., 150.};
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);}
+	{ EllipsePie pie = {50,  80., 30., 300.};
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);}
+	{ EllipsePie pie = {50,  80., 300., 30.};
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	create_testcase_for(file, pie, Ifc2x3::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);}
+	std::ofstream f(filename.c_str());
+	f << file;
+}
@@ -0,0 +1,214 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates various forms of IfcFace                              *
+ *                                                                              *
+ ********************************************************************************/
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc2x3
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+boost::none_t const null = (static_cast<boost::none_t>(0));
+
+static int x = 0;
+
+void create_testcase(hierarchy_helper& file, IfcSchema::IfcFace* face, const std::string& name) {
+	IfcSchema::IfcFace::list::ptr faces(new IfcSchema::IfcFace::list);
+	faces->push(face);
+	IfcSchema::IfcOpenShell* shell = new IfcSchema::IfcOpenShell(faces);
+
+	IfcSchema::IfcConnectedFaceSet::list::ptr shells(new IfcSchema::IfcConnectedFaceSet::list);
+	shells->push(shell);
+	IfcSchema::IfcFaceBasedSurfaceModel* model = new IfcSchema::IfcFaceBasedSurfaceModel(shells);
+	
+	IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
+		guid(), 0, name, null, null, 0, 0, null, null);
+	file.addBuildingProduct(product);
+	product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	product->setObjectPlacement(file.addLocalPlacement(0, 1000 * x++, 0));
+
+	IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list);
+	IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list);
+		
+	items->push(model);
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getRepresentationContext("Model"), S("Body"), S("SurfaceModel"), items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(0, 0, reps);
+	file.add_entity(shape);
+		
+	product->setRepresentation(shape);
+}
+
+int main(int argc, char** argv) {
+	hierarchy_helper file;
+	{ 
+		IfcSchema::IfcCartesianPoint::list::ptr points (new IfcSchema::IfcCartesianPoint::list);
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, +400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, +400, 0));
+		IfcSchema::IfcPolyLoop* loop = new IfcSchema::IfcPolyLoop(points);
+		IfcSchema::IfcFaceOuterBound* bound = new IfcSchema::IfcFaceOuterBound(loop, true);
+		
+		IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
+		bounds->push(bound);
+		IfcSchema::IfcFace* face = new IfcSchema::IfcFace(bounds);
+		create_testcase(file, face, "polyloop");
+	}
+	{ 
+		IfcSchema::IfcCartesianPoint* point1 = file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, 0., 0.);
+		IfcSchema::IfcCartesianPoint* point2 = file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, 0., 0.);
+		IfcSchema::IfcVertexPoint* vertex1 = new IfcSchema::IfcVertexPoint(point1);
+		IfcSchema::IfcVertexPoint* vertex2 = new IfcSchema::IfcVertexPoint(point2);
+		IfcSchema::IfcCircle* circle = new IfcSchema::IfcCircle(file.addPlacement2d(), 400.);
+		IfcSchema::IfcEdgeCurve* edge1 = new IfcSchema::IfcEdgeCurve(vertex1, vertex2, circle, true);
+		IfcSchema::IfcEdgeCurve* edge2 = new IfcSchema::IfcEdgeCurve(vertex2, vertex1, circle, true);
+		IfcSchema::IfcOrientedEdge* oriented_edge1 = new IfcSchema::IfcOrientedEdge(edge1, true);
+		IfcSchema::IfcOrientedEdge* oriented_edge2 = new IfcSchema::IfcOrientedEdge(edge2, true);
+		IfcSchema::IfcOrientedEdge::list::ptr edges(new IfcSchema::IfcOrientedEdge::list);
+		edges->push(oriented_edge1);
+		edges->push(oriented_edge2);
+		IfcSchema::IfcEdgeLoop* loop = new IfcSchema::IfcEdgeLoop(edges);
+		IfcSchema::IfcFaceOuterBound* bound = new IfcSchema::IfcFaceOuterBound(loop, true);
+		
+		IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
+		bounds->push(bound);
+		IfcSchema::IfcFace* face = new IfcSchema::IfcFace(bounds);
+		create_testcase(file, face, "circle");
+	}
+	{ 
+		IfcSchema::IfcCartesianPoint::list::ptr points (new IfcSchema::IfcCartesianPoint::list);
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, +400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, +400, 0));
+		IfcSchema::IfcPolyLoop* loop = new IfcSchema::IfcPolyLoop(points);
+		IfcSchema::IfcFaceOuterBound* outer_bound = new IfcSchema::IfcFaceOuterBound(loop, true);
+
+		IfcSchema::IfcCartesianPoint::list::ptr points2 (new IfcSchema::IfcCartesianPoint::list);
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-300, -300, 0));
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-100, -300, 0));
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-100, +300, 0));
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-300, +300, 0));
+		IfcSchema::IfcPolyLoop* loop2 = new IfcSchema::IfcPolyLoop(points2);
+		IfcSchema::IfcFaceBound* inner_bound1 = new IfcSchema::IfcFaceBound(loop2, false);
+
+		IfcSchema::IfcCartesianPoint::list::ptr points3 (new IfcSchema::IfcCartesianPoint::list);
+		points3->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+100, +300, 0));
+		points3->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+300, +300, 0));
+		points3->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+300, -300, 0));
+		points3->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+100, -300, 0));
+		IfcSchema::IfcPolyLoop* loop3 = new IfcSchema::IfcPolyLoop(points3);
+		IfcSchema::IfcFaceBound* inner_bound2 = new IfcSchema::IfcFaceBound(loop3, true);
+		
+		IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
+		bounds->push(inner_bound1);
+		bounds->push(outer_bound);
+		bounds->push(inner_bound2);
+		IfcSchema::IfcFace* face = new IfcSchema::IfcFace(bounds);
+		create_testcase(file, face, "polyloop with holes");
+	}
+	{ 
+		IfcSchema::IfcCartesianPoint::list::ptr points (new IfcSchema::IfcCartesianPoint::list);
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-100, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-100, +400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, +400, 0));
+		IfcSchema::IfcPolyLoop* loop = new IfcSchema::IfcPolyLoop(points);
+		IfcSchema::IfcFaceOuterBound* bound1 = new IfcSchema::IfcFaceOuterBound(loop, true);
+
+		IfcSchema::IfcCartesianPoint::list::ptr points2 (new IfcSchema::IfcCartesianPoint::list);
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+100, +400, 0));
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, +400, 0));
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, -400, 0));
+		points2->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+100, -400, 0));
+		IfcSchema::IfcPolyLoop* loop2 = new IfcSchema::IfcPolyLoop(points2);
+		IfcSchema::IfcFaceOuterBound* bound2 = new IfcSchema::IfcFaceOuterBound(loop2, false);
+
+		IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
+		bounds->push(bound1);
+		bounds->push(bound2);
+		IfcSchema::IfcFace* face = new IfcSchema::IfcFace(bounds);
+		create_testcase(file, face, "multiple outer boundaries (invalid)");
+	}
+	{ 
+		IfcSchema::IfcCartesianPoint::list::ptr points (new IfcSchema::IfcCartesianPoint::list);
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, -400, 1e-6));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, -400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, +400, 0));
+		points->push(file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, +400, 0));
+		IfcSchema::IfcPolyLoop* loop = new IfcSchema::IfcPolyLoop(points);
+		IfcSchema::IfcFaceOuterBound* bound = new IfcSchema::IfcFaceOuterBound(loop, true);
+		
+		IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
+		bounds->push(bound);
+		IfcSchema::IfcFace* face = new IfcSchema::IfcFace(bounds);
+		create_testcase(file, face, "imprecise polyloop");
+	}
+	{ 
+		IfcSchema::IfcCartesianPoint* point1 = file.addTriplet<IfcSchema::IfcCartesianPoint>(+400, 0., 0.);
+		IfcSchema::IfcCartesianPoint* point2 = file.addTriplet<IfcSchema::IfcCartesianPoint>(-400, 0., 0.);
+		IfcSchema::IfcVertexPoint* vertex1 = new IfcSchema::IfcVertexPoint(point1);
+		IfcSchema::IfcVertexPoint* vertex2 = new IfcSchema::IfcVertexPoint(point2);
+		IfcSchema::IfcCircle* circle = new IfcSchema::IfcCircle(file.addPlacement2d(), 400.);
+		IfcSchema::IfcEdgeCurve* edge1 = new IfcSchema::IfcEdgeCurve(vertex1, vertex2, circle, true);
+		IfcSchema::IfcEdgeCurve* edge2 = new IfcSchema::IfcEdgeCurve(vertex2, vertex1, circle, true);
+		IfcSchema::IfcOrientedEdge* oriented_edge1 = new IfcSchema::IfcOrientedEdge(edge1, true);
+		IfcSchema::IfcOrientedEdge* oriented_edge2 = new IfcSchema::IfcOrientedEdge(edge2, true);
+		IfcSchema::IfcOrientedEdge::list::ptr edges(new IfcSchema::IfcOrientedEdge::list);
+		edges->push(oriented_edge1);
+		edges->push(oriented_edge2);
+		IfcSchema::IfcEdgeLoop* loop = new IfcSchema::IfcEdgeLoop(edges);
+		IfcSchema::IfcFaceOuterBound* bound = new IfcSchema::IfcFaceOuterBound(loop, true);
+		
+		IfcSchema::IfcFaceBound::list::ptr bounds (new IfcSchema::IfcFaceBound::list);
+		bounds->push(bound);
+
+		IfcSchema::IfcCartesianPoint::list::ptr trim1(new IfcSchema::IfcCartesianPoint::list);
+		IfcSchema::IfcCartesianPoint::list::ptr trim2(new IfcSchema::IfcCartesianPoint::list);
+		trim1->push(point1);
+		trim2->push(point2);
+		IfcSchema::IfcTrimmedCurve* trimmed_curve = new IfcSchema::IfcTrimmedCurve(circle, trim1->generalize(), trim2->generalize(), true, IfcSchema::IfcTrimmingPreference::IfcTrimmingPreference_CARTESIAN);
+		IfcSchema::IfcArbitraryOpenProfileDef* profile = new IfcSchema::IfcArbitraryOpenProfileDef(IfcSchema::IfcProfileTypeEnum::IfcProfileType_CURVE, boost::none, trimmed_curve);
+		IfcSchema::IfcAxis1Placement* place = new IfcSchema::IfcAxis1Placement(file.addTriplet<IfcSchema::IfcCartesianPoint>(0., 0., 0.), file.addTriplet<IfcSchema::IfcDirection>(1., 0., 0.));
+		IfcSchema::IfcSurfaceOfRevolution* surface = new IfcSchema::IfcSurfaceOfRevolution(profile, file.addPlacement3d(), place);
+
+		IfcSchema::IfcFace* face = new IfcSchema::IfcFaceSurface(bounds, surface, true);
+		create_testcase(file, face, "face surface");
+	}
+	const std::string filename = "faces.ifc";
+	file.header().file_name().name(filename);
+	std::ofstream f(filename.c_str());
+	f << file;
+}
@@ -0,0 +1,164 @@
+/********************************************************************************
+*                                                                              *
+* This file is part of IfcOpenShell.                                           *
+*                                                                              *
+* IfcOpenShell is free software: you can redistribute it and/or modify         *
+* it under the terms of the Lesser GNU General Public License as published by  *
+* the Free Software Foundation, either version 3.0 of the License, or          *
+* (at your option) any later version.                                          *
+*                                                                              *
+* IfcOpenShell is distributed in the hope that it will be useful,              *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+* Lesser GNU General Public License for more details.                          *
+*                                                                              *
+* You should have received a copy of the Lesser GNU General Public License     *
+* along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+*                                                                              *
+********************************************************************************/
+
+/********************************************************************************
+*																				*
+* Example of curve rebar.														*
+*																				*
+********************************************************************************/
+
+#include <iostream>
+#include <string>
+#include <fstream>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc2x3
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+#include <boost/math/constants/constants.hpp>
+const static double PI = boost::math::constants::pi<double>();
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+boost::none_t const null = boost::none;
+
+#ifdef SCHEMA_HAS_IfcSegment
+typedef IfcSchema::IfcSegment curve_segment_t;
+#else
+typedef IfcSchema::IfcCompositeCurveSegment curve_segment_t;
+#endif
+
+#ifdef SCHEMA_IfcReinforcingBar_HAS_PredefinedType
+#define IFC_REINFORCING_BAR_TYPE IfcSchema::IfcReinforcingBarTypeEnum::IfcReinforcingBarType_LIGATURE
+#else
+#define IFC_REINFORCING_BAR_TYPE IfcSchema::IfcReinforcingBarRoleEnum::IfcReinforcingBarRole_LIGATURE
+#endif
+
+void create_curve_rebar(hierarchy_helper<IfcSchema>& file)
+{
+	int dia = 24;
+	int R = 3 * dia;
+	int length = 12 * dia;
+
+	double crossSectionarea = M_PI * (dia / 2) * 2;
+	IfcSchema::IfcReinforcingBar* rebar = new IfcSchema::IfcReinforcingBar(
+		guid(), 0, S("test"), null,
+		null, 0, 0,
+		null, S("SR24"),		//SteelGrade
+		dia,						//diameter
+		crossSectionarea,		//crossSectionarea = math.pi*(12.0/2)**2
+		0,
+		IFC_REINFORCING_BAR_TYPE,
+		IfcSchema::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurfaceEnum::IfcReinforcingBarSurface_PLAIN	//PLAIN or TEXTURED
+		);
+
+	file.addBuildingProduct(rebar);
+	rebar->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+	curve_segment_t::list::ptr segments(new curve_segment_t::list());
+
+	IfcSchema::IfcCartesianPoint* p1 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, 0, 1000.);
+	IfcSchema::IfcCartesianPoint* p2 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, 0, 0);
+	IfcSchema::IfcCartesianPoint* p3 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, R, 0);
+	IfcSchema::IfcCartesianPoint* p4 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, R, -R);
+	IfcSchema::IfcCartesianPoint* p5 = file.addTriplet<IfcSchema::IfcCartesianPoint>(0, R + length, -R);
+
+	/*first segment - line */
+	IfcSchema::IfcCartesianPoint::list::ptr points1(new IfcSchema::IfcCartesianPoint::list());
+	points1->push(p1);
+	points1->push(p2);
+	file.addEntities(points1->generalize());
+	IfcSchema::IfcPolyline* poly1 = new IfcSchema::IfcPolyline(points1);
+	file.add_entity(poly1);
+
+	IfcSchema::IfcCompositeCurveSegment* segment1 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTINUOUS, true, poly1);
+	file.add_entity(segment1);
+	segments->push(segment1);
+
+	/*second segment - arc */
+	IfcSchema::IfcAxis2Placement3D* axis1 = new IfcSchema::IfcAxis2Placement3D(p3, file.addTriplet<IfcSchema::IfcDirection>(1, 0, 0), file.addTriplet<IfcSchema::IfcDirection>(0, 1, 0));
+	file.add_entity(axis1);
+	IfcSchema::IfcCircle* circle = new IfcSchema::IfcCircle(axis1, R);
+	file.add_entity(circle);
+
+	IfcEntityList::ptr trim1(new IfcEntityList);
+	IfcEntityList::ptr trim2(new IfcEntityList);
+
+	trim1->push(new IfcSchema::IfcParameterValue(180));
+	trim1->push(p2);
+
+	trim2->push(new IfcSchema::IfcParameterValue(270));
+	trim2->push(p4);
+	IfcSchema::IfcTrimmedCurve* trimmed_curve = new IfcSchema::IfcTrimmedCurve(circle, trim1, trim2, false, IfcSchema::IfcTrimmingPreference::IfcTrimmingPreference_PARAMETER);
+	file.add_entity(trimmed_curve);
+
+	IfcSchema::IfcCompositeCurveSegment* segment2 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTSAMEGRADIENT, false, trimmed_curve);
+	file.add_entity(segment2);
+	segments->push(segment2);
+
+	/*third segment - line */
+	IfcSchema::IfcCartesianPoint::list::ptr points2(new IfcSchema::IfcCartesianPoint::list());
+	points2->push(p4);
+	points2->push(p5);
+	file.addEntities(points2->generalize());
+	IfcSchema::IfcPolyline* poly2 = new IfcSchema::IfcPolyline(points2);
+	file.add_entity(poly2);
+
+	IfcSchema::IfcCompositeCurveSegment* segment3 = new IfcSchema::IfcCompositeCurveSegment(IfcSchema::IfcTransitionCode::IfcTransitionCode_CONTINUOUS, true, poly2);
+	file.add_entity(segment3);
+	segments->push(segment3);
+
+	IfcSchema::IfcCompositeCurve* curve = new IfcSchema::IfcCompositeCurve(segments, false);
+	file.add_entity(curve);
+
+	IfcSchema::IfcSweptDiskSolid* solid = new IfcSchema::IfcSweptDiskSolid(curve, dia / 2, null, 0, 1);
+
+	IfcSchema::IfcRepresentation::list::ptr reps(new IfcSchema::IfcRepresentation::list());
+	IfcSchema::IfcRepresentationItem::list::ptr items(new IfcSchema::IfcRepresentationItem::list());
+	items->push(solid);
+	IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+		file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), S("AdvancedSweptSolid"), items);
+	reps->push(rep);
+
+	IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(null, null, reps);
+	file.add_entity(shape);
+
+	rebar->setRepresentation(shape);
+
+	IfcSchema::IfcObjectPlacement* storey_placement = file.getSingle<IfcSchema::IfcBuildingStorey>()->ObjectPlacement();
+	rebar->setObjectPlacement(file.addLocalPlacement(storey_placement, 0, 0, 0));
+}
+
+int main()
+{
+	hierarchy_helper file;
+	file.header().file_name().name("ifc_curve_rebar.ifc");
+	create_curve_rebar(file);
+	std::ofstream f("ifc_curve_rebar.ifc");
+	f << file;
+
+	return 0;
+}
@@ -0,0 +1,249 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates extrusions of parameterized profiles.                 *
+ *                                                                              *
+ ********************************************************************************/
+
+#include <string>
+#include <iostream>
+#include <fstream>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc2x3
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+typedef std::string S;
+typedef IfcWrite::IfcGuidHelper guid;
+boost::none_t const null = (static_cast<boost::none_t>(0));
+
+#ifdef SCHEMA_IfcUShapeProfileDef_HAS_CentreOfGravityInX
+#define IFC_U_SHAPE_PROFILE_DEF_EXTRA_ARGS , null
+#else
+#define IFC_U_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcTShapeProfileDef_HAS_CentreOfGravityInY
+#define IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS , null
+#else
+#define IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcIShapeProfileDef_HAS_FlangeEdgeRadius
+#define IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS , null, null
+#else
+#define IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcAsymmetricIShapeProfileDef_HAS_BottomFlangeSlope
+#define IFC_ASYMMETRIC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS , null, null, null
+#else
+#define IFC_ASYMMETRIC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcLShapeProfileDef_HAS_CentreOfGravityInX
+#define IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS , null, null
+#else
+#define IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+#ifdef SCHEMA_IfcCShapeProfileDef_HAS_CentreOfGravityInX
+#define IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS , null
+#else
+#define IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS
+#endif
+
+void create_testcase_for(IfcSchema::IfcProfileDef::list::ptr profiles) {
+	IfcSchema::IfcProfileDef* profile = *profiles->begin();
+	const std::string profile_type = IfcSchema::Type::ToString(profile->type());
+	const std::string filename = profile_type + ".ifc";
+	
+	hierarchy_helper file;
+	file.filename(filename);
+	
+	int i = 0;
+	for (IfcSchema::IfcProfileDef::list::it it = profiles->begin(); it != profiles->end(); ++it, ++i) {
+		IfcSchema::IfcProfileDef* profile = *it;
+		IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
+			guid(), 0, S("profile"), null, null, 0, 0, null, null);
+		file.addBuildingProduct(product);
+		file.getSingle<IfcSchema::IfcProject>()->setName(profile_type);
+		product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
+
+		product->setObjectPlacement(file.addLocalPlacement(0, 100. * i));
+
+		if (profile->is(IfcSchema::Type::IfcParameterizedProfileDef)) {
+			((IfcSchema::IfcParameterizedProfileDef*) profile)->setPosition(file.addPlacement2d());
+		}
+
+		IfcSchema::IfcExtrudedAreaSolid* solid = new IfcSchema::IfcExtrudedAreaSolid(profile,
+			file.addPlacement3d(), file.addTriplet<IfcSchema::IfcDirection>(0, 0, 1), 20.0);
+
+		file.add_entity(profile);
+		file.add_entity(solid);
+		
+		IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list);
+		IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list);
+		
+		items->push(solid);
+		IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
+			file.getSingle<IfcSchema::IfcRepresentationContext>(), S("Body"), S("SweptSolid"), items);
+		reps->push(rep);
+
+		IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(0, 0, reps);
+		file.add_entity(rep);
+		file.add_entity(shape);
+		
+		product->setRepresentation(shape);
+	}
+	
+	std::ofstream f(filename.c_str());
+	f << file;
+}
+
+int main(int argc, char** argv) {
+	{ IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcUShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,    null,    null,    null IFC_U_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcUShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,     2.0,     2.0,    null IFC_U_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcUShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,    null,    null,     4.0 IFC_U_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcUShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,     1.0,     3.0,     6.0 IFC_U_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	create_testcase_for(profiles); }
+	
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcTShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,    null,    null,    null,    null,    null IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcTShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,     2.0,     2.0,     2.0,    null,    null IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcTShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,    null,    null,    null,     2.0,     2.0 IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcTShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,     3.0,     2.0,     1.0,     2.0,     2.0 IFC_T_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	create_testcase_for(profiles); }
+	
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcZShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,    null,    null));
+	profiles->push(new Ifc2x3::IfcZShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     5.0,     2.0,     2.0));
+	create_testcase_for(profiles); }
+	
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcEllipseProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    25.0,    15.0));
+	profiles->push(new Ifc2x3::IfcEllipseProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    15.0,    25.0));
+	create_testcase_for(profiles); }
+	
+	{ IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new IfcSchema::IfcIShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    25.0,    50.0,     5.0,     5.0,    null IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcIShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    25.0,    50.0,     5.0,     5.0,     2.0 IFC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcAsymmetricIShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    25.0,    50.0,     5.0,     5.0,     2.0, 20.0, 10.0, 5.0, null IFC_ASYMMETRIC_I_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	create_testcase_for(profiles); }
+
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcLShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     null,    null,    null IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcLShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     2.0,      2.0,    null IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcLShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     null,    null,     2.0 IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcLShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,      1.0,     2.0,     2.0 IFC_L_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	create_testcase_for(profiles); }
+	
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcCShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,    10.0,    null IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	profiles->push(new IfcSchema::IfcCShapeProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,    10.0,     2.0 IFC_C_SHAPE_PROFILE_DEF_EXTRA_ARGS));
+	create_testcase_for(profiles); }
+
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcCircleProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    25.0));
+	profiles->push(new Ifc2x3::IfcCircleHollowProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    25.0,     5.0));
+	create_testcase_for(profiles); }
+	
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcRectangleProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0));
+	profiles->push(new Ifc2x3::IfcRoundedRectangleProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0));
+	profiles->push(new Ifc2x3::IfcRectangleHollowProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,    null,    null));
+	profiles->push(new Ifc2x3::IfcRectangleHollowProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    25.0,     5.0,     2.0,     4.0));
+	create_testcase_for(profiles); }
+	
+    { IfcSchema::IfcProfileDef::list::ptr profiles (new IfcSchema::IfcProfileDef::list);
+	profiles->push(new Ifc2x3::IfcTrapeziumProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    30.0,    25.0,     0.0));
+	profiles->push(new Ifc2x3::IfcTrapeziumProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    60.0,    25.0,   -20.0));
+	profiles->push(new Ifc2x3::IfcTrapeziumProfileDef(
+		IfcSchema::IfcProfileTypeEnum::IfcProfileType_AREA,
+		null, 0,    50.0,    10.0,    25.0,    30.0));
+	create_testcase_for(profiles); }
+}
@@ -0,0 +1,96 @@
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+/********************************************************************************
+ *                                                                              *
+ * Example that generates an IfcTriangulatedFaceSet                             *
+ *                                                                              *
+ ********************************************************************************/
+
+#include <iostream>
+#include <fstream>
+#include <optional>
+
+#include "ifcparse/macros.h"
+
+#ifndef IfcSchema
+#define IfcSchema Ifc4
+#endif
+
+#include INCLUDE_SCHEMA(ifcparse/schemas, IfcSchema)
+#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse/schemas, IfcSchema)
+
+#include "ifcparse/hierarchy_helper.h"
+
+#include "suzanne_geometry.h"
+
+#include <fstream>
+
+typedef std::string S;
+typedef ifcopenshell::global_id guid;
+
+template <typename T>
+std::vector< std::vector<T> > create_vector_from_array(const T* arr, unsigned size) {
+	std::vector< std::vector<T> > result;
+	result.reserve(size);	
+	
+	for (unsigned i = 0; i < size; ) {
+		std::vector<T> ts; ts.reserve(3);
+		for (unsigned j = 0; j < 3; ++i, ++j) {
+			ts.push_back(arr[i]);
+		}
+		result.push_back(ts);
+	}
+
+	return result;
+}
+
+int main(int argc, char** argv) {
+    hierarchy_helper<Ifc4> file;
+
+	Ifc4::IfcBuildingElementProxy product = file.create<Ifc4::IfcBuildingElementProxy>().initialize(
+        guid(), std::nullopt, S("Blender's Suzanne"), std::nullopt, std::nullopt, std::nullopt, std::nullopt, std::nullopt, std::nullopt);
+	file.addBuildingProduct(product);
+	product.setOwnerHistory(file.getSingle<Ifc4::IfcOwnerHistory>());
+
+	product.setObjectPlacement(file.addLocalPlacement());
+
+	std::vector< std::vector< double > > vertices_vector = create_vector_from_array(vertices, sizeof(vertices) / sizeof(vertices[0]));
+	std::vector< std::vector< int > > indices_vector = create_vector_from_array(indices, sizeof(indices) / sizeof(indices[0]));
+
+	IfcSchema::IfcCartesianPointList3D* coordinates = new IfcSchema::IfcCartesianPointList3D(vertices_vector
+#ifdef SCHEMA_IfcCartesianPointList3D_HAS_TagList
+		, boost::none
+#endif
+	);
+	IfcSchema::IfcTriangulatedFaceSet* faceset = new IfcSchema::IfcTriangulatedFaceSet(coordinates, null, null, indices_vector, null);
+		
+	Ifc4::IfcShapeRepresentation rep = file.create<Ifc4::IfcShapeRepresentation>().initialize(
+        file.getRepresentationContext("Model"), "Body", "SurfaceModel", {faceset});
+
+	Ifc4::IfcProductDefinitionShape shape = file.create<Ifc4::IfcProductDefinitionShape>().initialize(std::nullopt, std::nullopt, {rep});
+	file.add_entity(shape);
+		
+	product.setRepresentation(shape);
+
+	const std::string filename = "tesselated_faceset.ifc";
+	file.header().file_name().setname(filename);
+	std::ofstream f(filename.c_str());
+	f << file;
+}
@@ -206,7 +206,7 @@ class context:

        Args:
            file (ifcopenshell.file): file containing elem
-            elem (triangulation_element): triangulated geometry
+            elem (TriangulationElement): triangulated geometry 
            min_thickness (float, optional): minimal thickness of the oriented bounding box to create around elem

        Returns:
@@ -889,7 +889,7 @@ class context:
    def write_obj(ofn, *, elem=None, item=None):
        s = ifcopenshell.geom.settings(USE_WORLD_COORDS=True, WELD_VERTICES=False)
        if item:
-            geom = item.triangulate(s)
+            geom = item.Triangulate(s)
        else:
            geom = elem.geometry

@@ -36,34 +36,8 @@ message("Running CMakeLists.txt in /src/helpers")

 find_package(Eigen3 REQUIRED)

-# helpers_math: the schema-free subset — unit conversion tables and Helmert
-# matrix math over plain numbers. No IfcParse, no Qt, no schema dispatch, so it
-# builds under Emscripten where the rest of this directory cannot.
-#
-# It exists as its own target rather than being compiled into both `helpers` and
-# IfcViewerCore so the objects are built exactly once and both libraries agree
-# on them. IfcViewerCore links it directly (see src/ifcviewer/CMakeLists.txt);
-# `helpers` re-exports it PUBLIC below so existing consumers keep working
-# through the unchanged unit.h / geolocation.h includes.
-set(HELPER_MATH_CPP_FILES
-    ${CMAKE_CURRENT_SOURCE_DIR}/unit_convert.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/geolocation_transform.cpp
-)
-add_library(helpers_math STATIC ${HELPER_MATH_CPP_FILES})
-target_include_directories(helpers_math PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-target_link_libraries(helpers_math PUBLIC Eigen3::Eigen)
-set_target_properties(helpers_math PROPERTIES POSITION_INDEPENDENT_CODE ON)
-install(TARGETS helpers_math EXPORT ${IFCOPENSHELL_EXPORT_TARGETS})
-
-# The rest of this directory needs IfcParse and the generated schema bindings,
-# so it is desktop-only.
-if(EMSCRIPTEN)
-    return()
-endif()
-
 file(GLOB HELPER_CPP_FILES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
 file(GLOB HELPER_H_FILES   ${CMAKE_CURRENT_SOURCE_DIR}/*.h)
-list(REMOVE_ITEM HELPER_CPP_FILES ${HELPER_MATH_CPP_FILES})

 add_library(helpers STATIC ${HELPER_CPP_FILES} ${HELPER_H_FILES})

@@ -90,7 +64,6 @@ target_include_directories(helpers PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 target_link_libraries(helpers PUBLIC
    IfcParse
    Eigen3::Eigen
-    helpers_math
    PRIVATE
    ${HELPER_SCHEMA_LIBRARIES}
 )
@@ -41,7 +41,7 @@ struct is_ifc4_or_higher : std::false_type {};
 template <typename Schema>
 struct is_ifc4_or_higher<Schema, std::void_t<typename Schema::IfcMaterialDefinition>> : std::true_type {};

-std::string schema_name(const express::base& instance) {
+std::string schema_name(const express::Base& instance) {
    return instance.declaration().schema()->name();
 }

@@ -52,7 +52,7 @@ std::string schema_name(const express::base& instance) {
 // A primitive scalar attribute value formatted for display, or std::nullopt for
 // IFC null and for non-primitive values (entity references, aggregates/lists,
 // binary) — which the properties UI omits.
-std::optional<std::string> format_scalar(const ifcopenshell::attribute_value& value) {
+std::optional<std::string> format_scalar(const attribute_value& value) {
    if (value.isNull()) {
        return std::nullopt;
    }
@@ -60,7 +60,7 @@ std::optional<std::string> format_scalar(const ifcopenshell::attribute_value& va
    case ifcopenshell::Argument_STRING:
        return static_cast<std::string>(value);
    case ifcopenshell::Argument_ENUMERATION: {
-        const ifcopenshell::enumeration_reference enumeration = value;
+        const enumeration_reference enumeration = value;
        return enumeration.value() ? std::string(enumeration.value()) : std::string();
    }
    case ifcopenshell::Argument_INT:
@@ -87,7 +87,7 @@ std::optional<std::string> format_scalar(const ifcopenshell::attribute_value& va
 // ifcopenshell.util.element.get_type: the construction type of an occurrence
 // (get_type(type_element) == type_element).
 template <typename Schema>
-express::base get_type_s(const express::base& element) {
+express::Base get_type_s(const express::Base& element) {
    if (element.template as<typename Schema::IfcTypeObject>()) {
        return element;
    }
@@ -111,9 +111,9 @@ express::base get_type_s(const express::base& element) {
 }

 template <typename Schema>
-std::optional<std::string> get_predefined_type_s(const express::base& element) {
+std::optional<std::string> get_predefined_type_s(const express::Base& element) {
    // Prefer the associated type element's predefined type.
-    if (const express::base type = get_type_s<Schema>(element)) {
+    if (const express::Base type = get_type_s<Schema>(element)) {
        std::optional<std::string> predefined_type = get_string_attribute(type, "PredefinedType");
        if (!predefined_type || *predefined_type == "USERDEFINED") {
            // ElementType (IfcElementType) or ProcessType (IfcTypeProcess) — the
@@ -140,7 +140,7 @@ std::optional<std::string> get_predefined_type_s(const express::base& element) {
 // ifcopenshell.util.element.get_aggregate: the aggregate parent, via the
 // Decomposes inverse (IfcRelAggregates.RelatingObject).
 template <typename Schema>
-express::base get_aggregate_s(const express::base& element) {
+express::Base get_aggregate_s(const express::Base& element) {
    const auto object = element.template as<typename Schema::IfcObjectDefinition>();
    if (!object) {
        return {};
@@ -162,8 +162,8 @@ express::base get_aggregate_s(const express::base& element) {
 // The spatial-structure children aggregated under this element (IsDecomposedBy →
 // RelatedObjects, filtered to spatial elements).
 template <typename Schema>
-std::vector<express::base> get_spatial_children_s(const express::base& element) {
-    std::vector<express::base> children;
+std::vector<express::Base> get_spatial_children_s(const express::Base& element) {
+    std::vector<express::Base> children;
    const auto object = element.template as<typename Schema::IfcObjectDefinition>();
    if (!object) {
        return children;
@@ -182,14 +182,14 @@ std::vector<express::base> get_spatial_children_s(const express::base& element)
 // ifc_class): the directly containing spatial element, or the container of the
 // aggregate parent for an aggregated part.
 template <typename Schema>
-express::base get_container_s(const express::base& element) {
+express::Base get_container_s(const express::Base& element) {
    if (const auto product = element.template as<typename Schema::IfcElement>()) {
        const auto relationships = product.ContainedInStructure();
        if (!relationships.empty()) {
            return relationships.front().RelatingStructure();
        }
    }
-    if (const express::base aggregate = get_aggregate_s<Schema>(element)) {
+    if (const express::Base aggregate = get_aggregate_s<Schema>(element)) {
        return get_container_s<Schema>(aggregate);
    }
    return {};
@@ -197,7 +197,7 @@ express::base get_container_s(const express::base& element) {

 } // namespace

-std::optional<std::string> get_predefined_type(const express::base& element) {
+std::optional<std::string> get_predefined_type(const express::Base& element) {
    if (!element) {
        return std::nullopt;
    }
@@ -211,7 +211,7 @@ std::optional<std::string> get_predefined_type(const express::base& element) {
    unsupported_schema(name);
 }

-std::vector<std::pair<std::string, std::string>> get_scalar_attributes(const express::base& element) {
+std::vector<std::pair<std::string, std::string>> get_scalar_attributes(const express::Base& element) {
    std::vector<std::pair<std::string, std::string>> result;
    if (!element) {
        return result;
@@ -230,7 +230,7 @@ std::vector<std::pair<std::string, std::string>> get_scalar_attributes(const exp
    return result;
 }

-express::base get_type(const express::base& element) {
+express::Base get_type(const express::Base& element) {
    if (!element) {
        return {};
    }
@@ -244,7 +244,7 @@ express::base get_type(const express::base& element) {
    unsupported_schema(name);
 }

-express::base get_container(const express::base& element) {
+express::Base get_container(const express::Base& element) {
    if (!element) {
        return {};
    }
@@ -258,7 +258,7 @@ express::base get_container(const express::base& element) {
    unsupported_schema(name);
 }

-std::vector<express::base> get_spatial_children(const express::base& element) {
+std::vector<express::Base> get_spatial_children(const express::Base& element) {
    if (!element) {
        return {};
    }
@@ -275,7 +275,7 @@ std::vector<express::base> get_spatial_children(const express::base& element) {
 // getattr(element, name) for a string- or enum-valued attribute. Reads by name,
 // so it works uniformly across the various subtypes that carry a given
 // attribute (PredefinedType, Name, ...).
-std::optional<std::string> get_string_attribute(const express::base& element,
+std::optional<std::string> get_string_attribute(const express::Base& element,
                                                const std::string& name) {
    if (!element) {
        return std::nullopt;
@@ -288,13 +288,13 @@ std::optional<std::string> get_string_attribute(const express::base& element,
    if (index < 0) {
        return std::nullopt;
    }
-    const ifcopenshell::attribute_value value = element.get_attribute_value(static_cast<std::size_t>(index));
+    const attribute_value value = element.get_attribute_value(static_cast<std::size_t>(index));
    if (value.isNull()) {
        return std::nullopt;
    }
    switch (value.type()) {
    case ifcopenshell::Argument_ENUMERATION: {
-        const ifcopenshell::enumeration_reference enumeration = value;
+        const enumeration_reference enumeration = value;
        return enumeration.value() ? std::string(enumeration.value()) : std::string();
    }
    case ifcopenshell::Argument_STRING:
--- a/Show More
+++ b/Show More