Use fixed overlay text font

Use Qt's system fixed font for viewer overlay text instead of the generic monospace family, avoiding the Windows font-resolution delay seen during measurement overlays.

Generated with the assistance of an AI coding tool.

.github/scripts/publish-bonsai-releases.py

@@ -1,95 +0,0 @@
-#!/usr/bin/env -S uv run
-# /// script
-# dependencies = [
-#     "PyGithub",
-#     "requests",
-# ]
-# ///
-
-import os
-from pathlib import Path
-
-import requests
-from github import Github
-from github.GitReleaseAsset import GitReleaseAsset
-
-EXTENSION_ID = "bonsai"
-CURRENT_PYTHON_VERSION = "py313"
-CURRENT_PLATFORMS = ["linux-x64", "macos-arm64", "windows-x64"]
-
-
-def publish_asset(asset: GitReleaseAsset, token: str, repo_root: Path) -> None:
-    """
-    Publish an asset to Blender Extensions.
-    Reference: https://extensions.blender.org/api/v1/swagger
-    """
-    temp_path = repo_root / asset.name
-
-    response = requests.get(asset.browser_download_url)
-    response.raise_for_status()
-    temp_path.write_bytes(response.content)
-
-    url = f"https://extensions.blender.org/api/v1/extensions/{EXTENSION_ID}/versions/upload/"
-    headers = {"Authorization": f"Bearer {token}"}
-
-    files = {"version_file": temp_path.read_bytes()}
-    response = requests.post(url, headers=headers, files=files)
-    response.raise_for_status()
-
-    temp_path.unlink()
-
-    print(f"✓ Published {asset.name}")
-
-
-def main() -> None:
-    token = os.getenv("BLENDER_EXTENSIONS_TOKEN")
-    if not token:
-        raise Exception("BLENDER_EXTENSIONS_TOKEN environment variable not set")
-
-    # Get the repository root
-    repo_root = Path(__file__).parent.parent.parent
-
-    # Read VERSION file
-    version_file = repo_root / "VERSION"
-    version = version_file.read_text().strip()
-
-    print(f"Current VERSION: {version}")
-
-    tag_name = f"bonsai-{version}"
-
-    # Get release from GitHub
-    gh = Github()
-    gh_repo = gh.get_repo("IfcOpenShell/IfcOpenShell")
-    release = gh_repo.get_release(tag_name)
-
-    assets = release.get_assets()
-
-    asset_platform_map: dict[str, tuple[GitReleaseAsset, str]] = {}
-    for asset in assets:
-        if CURRENT_PYTHON_VERSION not in asset.name:
-            continue
-        for platform in CURRENT_PLATFORMS:
-            if platform in asset.name:
-                asset_platform_map[asset.name] = (asset, platform)
-                break
-
-    if len(asset_platform_map) != len(CURRENT_PLATFORMS):
-        found_platforms = {platform for _, (_, platform) in asset_platform_map.items()}
-        missing_platforms = set(CURRENT_PLATFORMS) - found_platforms
-        raise Exception(
-            f"Expected {len(CURRENT_PLATFORMS)} assets but found {len(asset_platform_map)}. "
-            f"Missing: {', '.join(sorted(missing_platforms))}"
-        )
-
-    print("\nRelease assets:")
-    for asset_name in sorted(asset_platform_map.keys()):
-        print(f"- {asset_name}")
-
-    # https://extensions.blender.org/api/v1/swagger
-    print("\nPublishing assets to Blender Extensions:")
-    for asset_name, (asset, platform) in asset_platform_map.items():
-        publish_asset(asset, token, repo_root)
-
-
-if __name__ == "__main__":
-    main()

.github/workflows/build-bonsaiviewer-autodesk.yml

@@ -0,0 +1,101 @@
+name: Build Bonsai Viewer Autodesk Connector
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - 'src/bonsaiviewer-autodesk/**'
+      - '.github/workflows/build-bonsaiviewer-autodesk.yml'
+  pull_request:
+    paths:
+      - 'src/bonsaiviewer-autodesk/**'
+      - '.github/workflows/build-bonsaiviewer-autodesk.yml'
+
+jobs:
+  test:
+    name: test-py${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        # Exercise the floor and a current version of the supported range
+        # (pyproject requires-python = ">=3.11").
+        python-version: ['3.11', '3.13']
+
+    defaults:
+      run:
+        working-directory: src/bonsaiviewer-autodesk
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      # The connector imports tkinter/customtkinter (via the test suite's
+      # connector coverage), so fail loudly here if Tk is missing.
+      - name: Verify tkinter is available
+        run: python -c "import tkinter; print('Tk', tkinter.TkVersion)"
+
+      - name: Install package and test deps
+        run: python -m pip install ".[test]"
+
+      - name: Run pytest
+        run: python -m pytest -q
+
+  build:
+    name: ${{ matrix.os_label }}-${{ matrix.arch }}
+    needs: test
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Linux: build on the oldest reasonable glibc (Ubuntu 22.04 / glibc
+          # 2.35) so the bundle runs on older distributions.
+          - os_label: linux
+            arch: x86_64
+            runner: ubuntu-22.04
+          # macOS Apple Silicon.
+          - os_label: macos
+            arch: arm64
+            runner: macos-14
+          # macOS Intel. macos-13 is the last Intel runner GitHub provides.
+          - os_label: macos
+            arch: x86_64
+            runner: macos-13
+          # Windows x86_64.
+          - os_label: windows
+            arch: x86_64
+            runner: windows-latest
+
+    defaults:
+      run:
+        working-directory: src/bonsaiviewer-autodesk
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.12'
+
+      # actions/setup-python ships Python with tkinter on all three OSes via
+      # python-build-standalone, but verify so a missing-tk regression fails
+      # the build loudly instead of inside PyInstaller.
+      - name: Verify tkinter is available
+        run: python -c "import tkinter; print('Tk', tkinter.TkVersion)"
+
+      - name: Install package and build deps
+        run: python -m pip install ".[build]"
+
+      - name: Build connector bundle
+        run: python packaging/build.py
+
+      - name: Upload connector zip
+        uses: actions/upload-artifact@v7
+        with:
+          name: autodesk-${{ matrix.os_label }}-${{ matrix.arch }}
+          path: src/bonsaiviewer-autodesk/dist/autodesk-${{ matrix.os_label }}-${{ matrix.arch }}.zip
+          if-no-files-found: error

.github/workflows/build_osx.yml

@@ -53,7 +53,7 @@ jobs:
           python ../nix/cache_dependencies.py unpack
 
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
         with:
           key: mac-${{ matrix.arch }}
 
@@ -110,7 +110,20 @@ jobs:
         run: |
           VERSION=v`cat VERSION`
           cd ./build/`uname`/*/10.15/install/ifcopenshell
-          mkdir ~/output
+          mkdir -p ~/output
+          install_root="$PWD"
+
+          stage_runtime_payload() {
+              dest="$1"
+              while IFS= read -r runtime_file; do
+                  cp -L "$runtime_file" "$dest/"
+              done < <(
+                  for runtime_dir in "$install_root/bin" "$install_root/lib" "$install_root/lib64"; do
+                      [ -d "$runtime_dir" ] || continue
+                      find "$runtime_dir" -type f \( -name "*.so" -o -name "*.so.*" -o -name "*.dylib" -o -name "*.dll" \)
+                  done
+              )
+          }
 
           ls -d python-* | while read py_version; do
               postfix=`echo ${py_version: -1} | sed s/[0-9]//`
@@ -125,18 +138,25 @@ jobs:
               fi
               [ -d ifcopenshell/__pycache__ ] && rm -rf ifcopenshell/__pycache__
               find ifcopenshell -name "*.pyc" -delete
-              zip -r -qq ifcopenshell-${py_version_major}-${VERSION}-${GITHUB_SHA:0:7}-macos${{ matrix.oldarch }}64.zip ifcopenshell/*
+              stage_runtime_payload ifcopenshell
+              zip -r -qq ifcopenshell-${py_version_major}-${VERSION}-${GITHUB_SHA:0:7}-macos${{ matrix.oldarch }}64.zip ifcopenshell
               mv *.zip ~/output
               popd > /dev/null
           done
 
-          cd bin
-          rm *.zip || true
-          ls | while read exe; do
-              zip -qq -r ${exe}-${VERSION}-${GITHUB_SHA:0:7}-macos${{ matrix.oldarch }}64.zip $exe
+          rm -f "$install_root"/bin/*.zip
+          find "$install_root/bin" -maxdepth 1 -type f -perm /111 ! -name "*.zip" ! -name "*.so" ! -name "*.so.*" ! -name "*.dylib" ! -name "*.dll" | while read exe_path; do
+              exe=`basename "$exe_path"`
+              package_dir="$install_root/.package-${exe}"
+              rm -rf "$package_dir"
+              mkdir -p "$package_dir"
+              cp "$exe_path" "$package_dir/"
+              stage_runtime_payload "$package_dir"
+              pushd "$package_dir" > /dev/null
+              zip -qq -r "$HOME/output/${exe}-${VERSION}-${GITHUB_SHA:0:7}-macos${{ matrix.oldarch }}64.zip" .
+              popd > /dev/null
+              rm -rf "$package_dir"
           done
-          mv *.zip ~/output
-          cd ..
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v6

.github/workflows/build_pyodide.yml

@@ -29,7 +29,7 @@ jobs:
           python ../IfcOpenShell/nix/cache_dependencies.py unpack
 
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
         with:
           key: ubuntu-22.04-${{ runner.arch }}
 
@@ -40,6 +40,18 @@ jobs:
           NEW_FILE=`echo $FILE | sed "s/-/+${GITHUB_SHA:0:7}-/2"`
           mv $FILE $NEW_FILE
 
+      - name: Order wheel shared objects
+        run: |
+          python ./IfcOpenShell/pyodide/order_pyodide_wheel_shared_objects.py dist/ifcopenshell-*.whl
+
+      - name: Split packages
+        run: |
+          VERSION=v`cat ./IfcOpenShell/VERSION`
+          mkdir -p dist-modular
+          python ./IfcOpenShell/pyodide/split_pyodide_ifcopenshell_wheel.py dist/ifcopenshell-*.whl ./dist-modular
+          cd dist-modular
+          zip -r -qq ifcopenshell-modular-${VERSION}-${GITHUB_SHA:0:7}-pyodide.zip *.whl
+
       - name: Upload Build Logs
         if: always()
         uses: actions/upload-artifact@v7
@@ -86,3 +98,4 @@ jobs:
       - name: Upload .zip archives to S3
         run: |
           aws s3 cp dist s3://ifcopenshell-builds/ --recursive --exclude "*" --include "*.whl"
+          aws s3 cp dist-modular s3://ifcopenshell-builds/ --recursive --exclude "*" --include "*.zip"

.github/workflows/build_rocky.yml

@@ -9,22 +9,19 @@ jobs:
     container: rockylinux:9
 
     steps:
-      - name: Set up uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
-
-      - name: Install Python
-        # Installs latest Python version so it's preferred by uv over Rocky's system Python.
-        run: uv python install
-
       - name: Install Dependencies
         run: |
           dnf update -y
+          dnf install -y epel-release
           dnf install -y gcc gcc-c++ git autoconf automake bison make zip cmake python3 python3-pip \
                          bzip2 patch mesa-libGL-devel libffi-devel fontconfig-devel      \
                          sqlite-devel bzip2-devel zlib-devel openssl-devel xz-devel      \
                          readline-devel ncurses-devel libffi-devel libuuid-devel git-lfs \
-                         findutils xz byacc
+                         findutils xz byacc patchelf libxkbcommon-devel                 \
+                         python3.11 python3.11-pip python3.11-tkinter
+          python3 -m pip install typing_extensions aqtinstall
           git config --global --add safe.directory '*'
+          python3.11 -c "import tkinter; print('Tk', tkinter.TkVersion)"
 
       - name: Install aws cli
         run: |
@@ -51,10 +48,10 @@ jobs:
       - name: Unpack Dependencies
         run: |
           cd build
-          uv run ../nix/cache_dependencies.py unpack
+          python3 ../nix/cache_dependencies.py unpack
 
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
         with:
           key: ubuntu-22.04-${{ runner.arch }}-rockylinux9
 
@@ -62,7 +59,7 @@ jobs:
         shell: bash
         run: |
           set -o pipefail
-          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release uv run ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log
+          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release BUILD_BONSAIVIEWER=ON python3 ./nix/build-all.py -v --diskcleanup --shared 2>&1 | tee build.log
 
       - name: Upload Build Logs
         if: always()
@@ -77,7 +74,7 @@ jobs:
       - name: Pack Dependencies
         run: |
           cd build
-          uv run ../nix/cache_dependencies.py pack
+          python3 ../nix/cache_dependencies.py pack
 
       - name: Commit and Push Changes to Build Repository
         run: |
@@ -89,10 +86,107 @@ jobs:
           git push || true
 
       - name: Package .zip archives
+        shell: bash
         run: |
           VERSION=v`cat VERSION`
+          python3.11 -m pip install "src/bonsaiviewer-autodesk[build]"
+          python3.11 src/bonsaiviewer-autodesk/packaging/build.py
+          autodesk_connector_dir="$PWD/src/bonsaiviewer-autodesk/dist/autodesk"
+          test -d "$autodesk_connector_dir"
+
           cd ./build/`uname`/*/install/ifcopenshell
-          mkdir ~/output
+          mkdir -p ~/output
+          install_root="$PWD"
+          QT6_VERSION="${QT6_VERSION:-6.8.3}"
+
+          if [ -z "${QT_DIR:-}" ]; then
+              for qt_candidate in "$(dirname "$install_root")"/qt6-${QT6_VERSION}-*/${QT6_VERSION}/*; do
+                  if [ -d "$qt_candidate/lib" ]; then
+                      QT_DIR="$qt_candidate"
+                      break
+                  fi
+              done
+          fi
+
+          ensure_soname_links() {
+              dest="$1"
+              find "$dest" -maxdepth 1 -type f -name "*.so*" | while IFS= read -r shared_object; do
+                  soname=$(readelf -d "$shared_object" 2>/dev/null | sed -n 's/.*(SONAME).*Shared library: \[\(.*\)\].*/\1/p' | head -n 1)
+                  [ -n "$soname" ] || continue
+                  [ -e "$dest/$soname" ] && continue
+                  ln -s "$(basename "$shared_object")" "$dest/$soname"
+              done
+          }
+
+          stage_runtime_payload() {
+              dest="$1"
+              include_geometry_writers="${2:-1}"
+              while IFS= read -r runtime_file; do
+                  if [ "$include_geometry_writers" != "1" ] && [[ "$(basename "$runtime_file")" == ifcopenshell.geometry.writer.* ]]; then
+                      continue
+                  fi
+                  cp -P "$runtime_file" "$dest/"
+              done < <(
+                  for runtime_dir in "$install_root/bin" "$install_root/lib" "$install_root/lib64"; do
+                      [ -d "$runtime_dir" ] || continue
+                      find "$runtime_dir" \( -type f -o -type l \) \( -name "*.so" -o -name "*.so.*" -o -name "*.dylib" -o -name "*.dll" \)
+                  done
+              )
+              ensure_soname_links "$dest"
+          }
+
+          stage_qt_runtime_payload() {
+              exe_path="$1"
+              dest="$2"
+              [ -n "${QT_DIR:-}" ] && [ -d "$QT_DIR/lib" ] || return 0
+
+              if ! LD_LIBRARY_PATH="$QT_DIR/lib:${LD_LIBRARY_PATH:-}" ldd "$exe_path" 2>/dev/null | grep -q "libQt6"; then
+                  return 0
+              fi
+
+              find "$QT_DIR/lib" -maxdepth 1 \( -type f -o -type l \) -name "*.so*" -exec cp -P {} "$dest/" \;
+              ensure_soname_links "$dest"
+
+              if [ -d "$QT_DIR/plugins" ]; then
+                  pushd "$QT_DIR/plugins" > /dev/null
+                  find . \( -type f -o -type l \) -name "*.so*" | while IFS= read -r plugin_file; do
+                      mkdir -p "$dest/plugins/$(dirname "$plugin_file")"
+                      cp -P "$plugin_file" "$dest/plugins/$plugin_file"
+                  done
+                  popd > /dev/null
+                  if [ -d "$dest/plugins" ]; then
+                      find "$dest/plugins" -type f -name "*.so*" -exec patchelf --set-rpath '$ORIGIN/../..:$ORIGIN' {} \;
+                  fi
+              fi
+
+              find "$dest" -maxdepth 1 -type f -name "*.so*" -exec patchelf --set-rpath '$ORIGIN' {} \;
+
+              printf "[Paths]\nPrefix = .\n" > "$dest/qt.conf"
+          }
+
+          check_runtime_dependencies() {
+              package_dir="$1"
+              missing=0
+              while IFS= read -r binary_file; do
+                  readelf -h "$binary_file" >/dev/null 2>&1 || continue
+                  if ! env -u LD_LIBRARY_PATH ldd "$binary_file" > "$package_dir/.ldd.out" 2>&1; then
+                      echo "ldd failed for $binary_file"
+                      cat "$package_dir/.ldd.out"
+                      missing=1
+                      continue
+                  fi
+                  if grep -q "not found" "$package_dir/.ldd.out"; then
+                      echo "Missing runtime dependencies for $binary_file"
+                      grep "not found" "$package_dir/.ldd.out"
+                      missing=1
+                  fi
+              done < <(find "$package_dir" -type f \( -perm /111 -o -name "*.so" -o -name "*.so.*" \))
+              rm -f "$package_dir/.ldd.out"
+              if [ "$missing" -ne 0 ]; then
+                  echo "Runtime dependency check found issues; continuing packaging."
+              fi
+              return 0
+          }
 
           ls -d python-* | while read py_version; do
               postfix=`echo ${py_version: -1} | sed s/[0-9]//`
@@ -107,18 +201,32 @@ jobs:
               fi
               [ -d ifcopenshell/__pycache__ ] && rm -rf ifcopenshell/__pycache__
               find ifcopenshell -name "*.pyc" -delete
-              zip -r -qq ifcopenshell-${py_version_major}-${VERSION}-${GITHUB_SHA:0:7}-linux64.zip ifcopenshell/*
+              stage_runtime_payload ifcopenshell
+              zip -y -r -qq ifcopenshell-${py_version_major}-${VERSION}-${GITHUB_SHA:0:7}-linux64.zip ifcopenshell
               mv *.zip ~/output
               popd > /dev/null
           done
 
-          cd bin
-          rm *.zip || true
-          ls | while read exe; do
-              zip -qq -r ${exe}-${VERSION}-${GITHUB_SHA:0:7}-linux64.zip $exe
+          rm -f "$install_root"/bin/*.zip
+          find "$install_root/bin" -maxdepth 1 -type f -perm /111 ! -name "*.zip" ! -name "*.so" ! -name "*.so.*" ! -name "*.dylib" ! -name "*.dll" | while read exe_path; do
+              exe=`basename "$exe_path"`
+              package_dir="$install_root/.package-${exe}"
+              rm -rf "$package_dir"
+              mkdir -p "$package_dir"
+              cp "$exe_path" "$package_dir/"
+              patchelf --set-rpath '$ORIGIN' "$package_dir/$exe"
+              stage_runtime_payload "$package_dir" 0
+              stage_qt_runtime_payload "$exe_path" "$package_dir"
+              if [ "$exe" = "BonsaiViewer" ]; then
+                  mkdir -p "$package_dir/connectors"
+                  cp -a "$autodesk_connector_dir" "$package_dir/connectors/"
+              fi
+              check_runtime_dependencies "$package_dir"
+              pushd "$package_dir" > /dev/null
+              zip -y -qq -r "$HOME/output/${exe}-${VERSION}-${GITHUB_SHA:0:7}-linux64.zip" .
+              popd > /dev/null
+              rm -rf "$package_dir"
           done
-          mv *.zip ~/output
-          cd ..
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v6

.github/workflows/build_rocky_arm.yml

@@ -9,22 +9,19 @@ jobs:
     container: arm64v8/rockylinux:9
 
     steps:
-      - name: Set up uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
-
-      - name: Install Python
-        # Installs latest Python version so it's preferred by uv over Rocky's system Python.
-        run: uv python install
-
       - name: Install Dependencies
         run: |
           dnf update -y
+          dnf install -y epel-release
           dnf install -y gcc gcc-c++ git autoconf automake bison make zip cmake python3 python3-pip \
                          bzip2 patch mesa-libGL-devel libffi-devel fontconfig-devel      \
                          sqlite-devel bzip2-devel zlib-devel openssl-devel xz-devel      \
                          readline-devel ncurses-devel libffi-devel libuuid-devel git-lfs \
-                         findutils xz byacc
+                         findutils xz byacc patchelf libxkbcommon-devel                 \
+                         python3.11 python3.11-pip python3.11-tkinter
+          python3 -m pip install typing_extensions aqtinstall
           git config --global --add safe.directory '*'
+          python3.11 -c "import tkinter; print('Tk', tkinter.TkVersion)"
 
       - name: Install aws cli
         run: |
@@ -51,10 +48,10 @@ jobs:
       - name: Unpack Dependencies
         run: |
           cd build
-          uv run ../nix/cache_dependencies.py unpack
+          python3 ../nix/cache_dependencies.py unpack
 
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
         with:
           key: ubuntu-22.04-${{ runner.arch }}-rockylinux9
 
@@ -62,7 +59,7 @@ jobs:
         shell: bash
         run: |
           set -o pipefail
-          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release uv run ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log
+          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release BUILD_BONSAIVIEWER=ON python3 ./nix/build-all.py -v --diskcleanup --shared 2>&1 | tee build.log
 
       - name: Upload Build Logs
         if: always()
@@ -77,7 +74,7 @@ jobs:
       - name: Pack Dependencies
         run: |
           cd build
-          uv run ../nix/cache_dependencies.py pack
+          python3 ../nix/cache_dependencies.py pack
 
       - name: Commit and Push Changes to Build Repository
         run: |
@@ -89,10 +86,107 @@ jobs:
           git push || true
 
       - name: Package .zip archives
+        shell: bash
         run: |
           VERSION=v`cat VERSION`
+          python3.11 -m pip install "src/bonsaiviewer-autodesk[build]"
+          python3.11 src/bonsaiviewer-autodesk/packaging/build.py
+          autodesk_connector_dir="$PWD/src/bonsaiviewer-autodesk/dist/autodesk"
+          test -d "$autodesk_connector_dir"
+
           cd ./build/`uname`/*/install/ifcopenshell
-          mkdir ~/output
+          mkdir -p ~/output
+          install_root="$PWD"
+          QT6_VERSION="${QT6_VERSION:-6.8.3}"
+
+          if [ -z "${QT_DIR:-}" ]; then
+              for qt_candidate in "$(dirname "$install_root")"/qt6-${QT6_VERSION}-*/${QT6_VERSION}/*; do
+                  if [ -d "$qt_candidate/lib" ]; then
+                      QT_DIR="$qt_candidate"
+                      break
+                  fi
+              done
+          fi
+
+          ensure_soname_links() {
+              dest="$1"
+              find "$dest" -maxdepth 1 -type f -name "*.so*" | while IFS= read -r shared_object; do
+                  soname=$(readelf -d "$shared_object" 2>/dev/null | sed -n 's/.*(SONAME).*Shared library: \[\(.*\)\].*/\1/p' | head -n 1)
+                  [ -n "$soname" ] || continue
+                  [ -e "$dest/$soname" ] && continue
+                  ln -s "$(basename "$shared_object")" "$dest/$soname"
+              done
+          }
+
+          stage_runtime_payload() {
+              dest="$1"
+              include_geometry_writers="${2:-1}"
+              while IFS= read -r runtime_file; do
+                  if [ "$include_geometry_writers" != "1" ] && [[ "$(basename "$runtime_file")" == ifcopenshell.geometry.writer.* ]]; then
+                      continue
+                  fi
+                  cp -P "$runtime_file" "$dest/"
+              done < <(
+                  for runtime_dir in "$install_root/bin" "$install_root/lib" "$install_root/lib64"; do
+                      [ -d "$runtime_dir" ] || continue
+                      find "$runtime_dir" \( -type f -o -type l \) \( -name "*.so" -o -name "*.so.*" -o -name "*.dylib" -o -name "*.dll" \)
+                  done
+              )
+              ensure_soname_links "$dest"
+          }
+
+          stage_qt_runtime_payload() {
+              exe_path="$1"
+              dest="$2"
+              [ -n "${QT_DIR:-}" ] && [ -d "$QT_DIR/lib" ] || return 0
+
+              if ! LD_LIBRARY_PATH="$QT_DIR/lib:${LD_LIBRARY_PATH:-}" ldd "$exe_path" 2>/dev/null | grep -q "libQt6"; then
+                  return 0
+              fi
+
+              find "$QT_DIR/lib" -maxdepth 1 \( -type f -o -type l \) -name "*.so*" -exec cp -P {} "$dest/" \;
+              ensure_soname_links "$dest"
+
+              if [ -d "$QT_DIR/plugins" ]; then
+                  pushd "$QT_DIR/plugins" > /dev/null
+                  find . \( -type f -o -type l \) -name "*.so*" | while IFS= read -r plugin_file; do
+                      mkdir -p "$dest/plugins/$(dirname "$plugin_file")"
+                      cp -P "$plugin_file" "$dest/plugins/$plugin_file"
+                  done
+                  popd > /dev/null
+                  if [ -d "$dest/plugins" ]; then
+                      find "$dest/plugins" -type f -name "*.so*" -exec patchelf --set-rpath '$ORIGIN/../..:$ORIGIN' {} \;
+                  fi
+              fi
+
+              find "$dest" -maxdepth 1 -type f -name "*.so*" -exec patchelf --set-rpath '$ORIGIN' {} \;
+
+              printf "[Paths]\nPrefix = .\n" > "$dest/qt.conf"
+          }
+
+          check_runtime_dependencies() {
+              package_dir="$1"
+              missing=0
+              while IFS= read -r binary_file; do
+                  readelf -h "$binary_file" >/dev/null 2>&1 || continue
+                  if ! env -u LD_LIBRARY_PATH ldd "$binary_file" > "$package_dir/.ldd.out" 2>&1; then
+                      echo "ldd failed for $binary_file"
+                      cat "$package_dir/.ldd.out"
+                      missing=1
+                      continue
+                  fi
+                  if grep -q "not found" "$package_dir/.ldd.out"; then
+                      echo "Missing runtime dependencies for $binary_file"
+                      grep "not found" "$package_dir/.ldd.out"
+                      missing=1
+                  fi
+              done < <(find "$package_dir" -type f \( -perm /111 -o -name "*.so" -o -name "*.so.*" \))
+              rm -f "$package_dir/.ldd.out"
+              if [ "$missing" -ne 0 ]; then
+                  echo "Runtime dependency check found issues; continuing packaging."
+              fi
+              return 0
+          }
 
           ls -d python-* | while read py_version; do
               postfix=`echo ${py_version: -1} | sed s/[0-9]//`
@@ -107,18 +201,32 @@ jobs:
               fi
               [ -d ifcopenshell/__pycache__ ] && rm -rf ifcopenshell/__pycache__
               find ifcopenshell -name "*.pyc" -delete
-              zip -r -qq ifcopenshell-${py_version_major}-${VERSION}-${GITHUB_SHA:0:7}-linuxarm64.zip ifcopenshell/*
+              stage_runtime_payload ifcopenshell
+              zip -y -r -qq ifcopenshell-${py_version_major}-${VERSION}-${GITHUB_SHA:0:7}-linuxarm64.zip ifcopenshell
               mv *.zip ~/output
               popd > /dev/null
           done
 
-          cd bin
-          rm *.zip || true
-          ls | while read exe; do
-              zip -qq -r ${exe}-${VERSION}-${GITHUB_SHA:0:7}-linuxarm64.zip $exe
+          rm -f "$install_root"/bin/*.zip
+          find "$install_root/bin" -maxdepth 1 -type f -perm /111 ! -name "*.zip" ! -name "*.so" ! -name "*.so.*" ! -name "*.dylib" ! -name "*.dll" | while read exe_path; do
+              exe=`basename "$exe_path"`
+              package_dir="$install_root/.package-${exe}"
+              rm -rf "$package_dir"
+              mkdir -p "$package_dir"
+              cp "$exe_path" "$package_dir/"
+              patchelf --set-rpath '$ORIGIN' "$package_dir/$exe"
+              stage_runtime_payload "$package_dir" 0
+              stage_qt_runtime_payload "$exe_path" "$package_dir"
+              if [ "$exe" = "BonsaiViewer" ]; then
+                  mkdir -p "$package_dir/connectors"
+                  cp -a "$autodesk_connector_dir" "$package_dir/connectors/"
+              fi
+              check_runtime_dependencies "$package_dir"
+              pushd "$package_dir" > /dev/null
+              zip -y -qq -r "$HOME/output/${exe}-${VERSION}-${GITHUB_SHA:0:7}-linuxarm64.zip" .
+              popd > /dev/null
+              rm -rf "$package_dir"
           done
-          mv *.zip ~/output
-          cd ..
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v6

.github/workflows/build_win.yml

@@ -48,17 +48,39 @@ jobs:
         run: |
           cd ${{ matrix.deps_dir }}
           Get-ChildItem -Path . -Filter 'cache-*.zip' | ForEach-Object {
-            7z x $_.FullName
+            Write-Host "Extracting $($_.Name)"
+            7z x -bso0 -bsp0 $_.FullName
+            if ($LASTEXITCODE -ne 0) {
+              throw "Failed to extract $($_.Name) with 7z exit code $LASTEXITCODE."
+            }
           }
 
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
         with:
           key: win-${{ matrix.arch }}
           # Windows ccache needs ~1GB
           # and with default 500MB some cache gets deleted, leading to misses.
           max-size: 5000MB
 
+      - name: Set up Python for connector build
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.12'
+
+      # The connector's PyInstaller bundle embeds a tkinter GUI; verify Tk is
+      # present so a missing-tk regression fails here, not inside the build.
+      - name: Verify tkinter is available
+        run: python -c "import tkinter; print('Tk', tkinter.TkVersion)"
+
+      # Build the Autodesk connector before the C++ build: build-all-win.py
+      # bundles it next to BonsaiViewer.exe while archiving the executables.
+      - name: Build Autodesk connector
+        working-directory: src/bonsaiviewer-autodesk
+        run: |
+          python -m pip install ".[build]"
+          python packaging/build.py
+
       - name: Run Build Script And Pack .zip Archives
         shell: cmd
         env:

.github/workflows/ci-ifcopenshell-docker.yml

@@ -31,11 +31,11 @@ jobs:
         sudo apt-get install --no-install-recommends \
         git cmake gcc g++ libboost-all-dev python3-all-dev swig libpcre3-dev libxml2-dev \
         libocct-foundation-dev libocct-modeling-algorithms-dev libocct-modeling-data-dev libocct-ocaf-dev libocct-visualization-dev libocct-data-exchange-dev \
-        libhdf5-dev libcgal-dev nlohmann-json3-dev libeigen3-dev
+        libcgal-dev nlohmann-json3-dev libeigen3-dev
 
     -
       name: ccache
-      uses: hendrikmuhs/ccache-action@v1.2.23
+      uses: hendrikmuhs/ccache-action@v1.2.22
 
     - 
       name: Build ifcopenshell
@@ -60,7 +60,6 @@ jobs:
          -DMPFR_INCLUDE_DIR=/usr/include \
          -DGMP_LIBRARY_DIR=/usr/lib/x86_64-linux-gnu \
          -DMPFR_LIBRARY_DIR=/usr/lib/x86_64-linux-gnu \
-         -DHDF5_INCLUDE_DIR=/usr/include/hdf5/serial \
          -DGLTF_SUPPORT=On \
          -DJSON_INCLUDE_DIR=/usr/include \
          -DEIGEN_DIR=/usr/include/eigen3 \

.github/workflows/ci-lint.yaml

@@ -30,7 +30,7 @@ jobs:
           uv tool install ruff
           uv tool install black
           uv tool install poethepoet
-          uv tool install ty==0.0.34
+          uv tool install ty
 
       # black doesn't catch all syntax errors, so we check them explicitly.
       - name: Check syntax errors
@@ -95,7 +95,8 @@ jobs:
             echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
           }
 
-          run_check poe ruff
+          run_check poe ruff-main
+          run_check poe ruff-old
 
           exit $ERROR
         continue-on-error: true

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install xmlschema xsdata numpy lxml pytest isodate lark networkx tabulate python-dateutil shapely pyparsing
+          pip install xmlschema xsdata numpy lxml pytest isodate lark networkx tabulate python-dateutil shapely
           pip install src/bcf --no-deps
           pip install pytest-xdist==3.8.0
 
@@ -76,10 +76,10 @@ jobs:
           libtbb-dev nlohmann-json3-dev \
           libocct-foundation-dev libocct-modeling-algorithms-dev libocct-modeling-data-dev libocct-ocaf-dev libocct-visualization-dev libocct-data-exchange-dev \
           ${OCCT_CMAKE_DEPS} \
-          libhdf5-dev libcgal-dev libeigen3-dev
+          libcgal-dev libeigen3-dev
           
       - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
         with:
           key: ubuntu-22.04-${{ runner.arch }}
 

.github/workflows/publish-bonsai-releases.yml

@@ -1,16 +0,0 @@
-name: Publish Bonsai Releases
-
-on:
-  workflow_dispatch:
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-
-      - uses: astral-sh/setup-uv@v7
-
-      - run: uv run .github/scripts/publish-bonsai-releases.py
-        env:
-          BLENDER_EXTENSIONS_TOKEN: ${{ secrets.BLENDER_EXTENSIONS_TOKEN }}

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
           swig libpcre3-dev libxml2-dev \
           libtbb-dev nlohmann-json3-dev \
           libocct-foundation-dev libocct-modeling-algorithms-dev libocct-modeling-data-dev libocct-ocaf-dev libocct-visualization-dev libocct-data-exchange-dev \
-          libhdf5-dev libcgal-dev opencollada-dev
+          libcgal-dev opencollada-dev
           
       - name: Build
         env:
@@ -64,7 +64,6 @@ jobs:
            -DMPFR_INCLUDE_DIR=/usr/include \
            -DGMP_LIBRARY_DIR=/usr/lib/x86_64-linux-gnu \
            -DMPFR_LIBRARY_DIR=/usr/lib/x86_64-linux-gnu \
-           -DHDF5_INCLUDE_DIR=/usr/include/hdf5/serial \
            -DOPENCOLLADA_INCLUDE_DIR=/usr/include/opencollada \
            -DOPENCOLLADA_LIBRARY_DIR=/usr/lib/opencollada/ \
            ../cmake

.gitignore

@@ -128,3 +128,7 @@ src/ifcopenshell-python/ifcopenshell/express/*.exp.cache.dat
 *.claude
 *.py.tmp*
 *.json.tmp*
+
+# bonsaiviewer-autodesk connector build artifacts
+/src/bonsaiviewer-autodesk/build/
+/src/bonsaiviewer-autodesk/dist/

Dockerfile

@@ -27,7 +27,7 @@ RUN echo "deb http://archive.ubuntu.com/ubuntu focal-proposed main restricted" |
                     libboost-all-dev \
                     libocct-foundation-dev libocct-modeling-algorithms-dev libocct-modeling-data-dev \
                     libocct-ocaf-dev libocct-visualization-dev libocct-data-exchange-dev \
-                    libhdf5-serial-dev python3-pytest ; \
+                    python3-pytest ; \
     rm -rf /var/lib/apt/lists/* ; 
 
 COPY . /home/IfcOpenShell/

build.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+set -e
+
+mkdir -p build && cd build
+
+cmake ../cmake \
+  -G Ninja \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DPython_EXECUTABLE=/home/dion/Projects/env/bin/python3.11 \
+  -DPython_INCLUDE_DIR=/usr/include/python3.11 \
+  -DBUILD_IFCPYTHON=ON \
+  -DBUILD_IFCGEOM=ON \
+  -DBUILD_CONVERT=ON \
+  -DBUILD_GEOMSERVER=OFF \
+  -DBUILD_EXAMPLES=OFF \
+  -DWITH_OPENCASCADE=ON \
+  -DWITH_CGAL=ON \
+  -DWITH_MANIFOLD=ON \
+  -DGLTF_SUPPORT=ON \
+  -DIFCXML_SUPPORT=OFF \
+  -DCOLLADA_SUPPORT=OFF \
+  -DSCHEMA_VERSIONS="2x3;4;4x3_add2" \
+  -DOCC_INCLUDE_DIR=/usr/include/opencascade \
+  -DOCC_LIBRARY_DIR=/usr/lib64/opencascade
+
+ninja
+
+cp ifcwrap/_ifcopenshell_wrapper*.so ifcwrap/ifcopenshell_wrapper.py \
+   ../src/ifcopenshell-python/ifcopenshell/

cmake/CMakeLists.txt

@@ -18,28 +18,19 @@
 ################################################################################
 
 cmake_minimum_required(VERSION 3.21)
-if(NOT DEFINED CMAKE_CXX_STANDARD)
+if (NOT DEFINED CMAKE_CXX_STANDARD)
     set(CMAKE_CXX_STANDARD 17)
 endif()
-if(CMAKE_CXX_STANDARD LESS 17)
+if (CMAKE_CXX_STANDARD LESS 17)
     message(FATAL_ERROR "C++17 or newer is required.")
 endif()
 set(CMAKE_CXX_STANDARD_REQUIRED ON) # not necessary, but encouraged
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-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()
-
 add_definitions(-D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
 
 if(POLICY CMP0141) # 3.25+
-    # Has to be set before `project` to take effect.
-    cmake_policy(SET CMP0141 NEW) # Support for `CMAKE_MSVC_DEBUG_INFORMATION_FORMAT`.
+  cmake_policy(SET CMP0141 NEW) # Support for `CMAKE_MSVC_DEBUG_INFORMATION_FORMAT`.
 endif()
 if(POLICY CMP0144) # 3.27
     cmake_policy(SET CMP0144 NEW) # find_package() uses upper-case <PACKAGENAME>_ROOT variables.
@@ -48,8 +39,6 @@ if(POLICY CMP0167) # 3.30
     cmake_policy(SET CMP0167 OLD)
 endif()
 
-project(IfcOpenShell VERSION ${RELEASE_VERSION})
-
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE "Release")
 endif()
@@ -65,64 +54,69 @@ endif()
 option(MINIMAL_BUILD "The build is to make a minimal version of IFC converter from OCCT into IFC." OFF)
 option(WASM_BUILD "Build a WebAssembly binary." OFF)
 
-option(
-    ENABLE_BUILD_OPTIMIZATIONS
-    "Enable certain compiler and linker optimizations on RelWithDebInfo and Release builds."
-    OFF
-)
-option(BUILD_SHARED_LIBS "Build IfcParse and IfcGeom as shared libs (SO/DLL)." OFF)
+option(ENABLE_BUILD_OPTIMIZATIONS "Enable certain compiler and linker optimizations on RelWithDebInfo and Release builds." OFF)
+option(BUILD_SHARED_LIBS "Build IfcOpenShell as shared libraries (required)." ON)
 option(MSVC_PARALLEL_BUILD "Multi-threaded compilation in Microsoft Visual Studio (/MP)" OFF)
 option(USE_VLD "Use Visual Leak Detector for debugging memory leaks, MSVC-only." OFF)
 option(USE_MMAP "Adds a command line options to parse IFC files from memory mapped files using Boost.Iostreams" OFF)
 option(NO_WARN "Disable all warnings" OFF)
+option(CREATE_BUNDLE "Copy .so files and don't create RPATHS or SOVERSION symlinks" )
 
 option(BUILD_IFCGEOM "Build IfcGeom." ON)
 option(BUILD_IFCPYTHON "Build IfcPython." ON)
+option(BUILD_IFCPARSE_EXPERIMENTAL_WRAPPER "Build the experimental Clang-generated ifcparse Python wrapper." OFF)
 option(BUILD_CONVERT "Build IfcConvert executable." ON)
 option(BUILD_DOCUMENTATION "Build IfcOpenShell Documentation." OFF)
-option(BUILD_EXAMPLES "Build example applications." OFF)
+option(BUILD_EXAMPLES "Build example applications." ON)
 option(BUILD_GEOMSERVER "Build IfcGeomServer executable (Open CASCADE is required)." ON)
 option(BUILD_IFCMAX "Build IfcMax, a 3ds Max plug-in, Windows-only." OFF)
 option(BUILD_QTVIEWER "Build IfcOpenShell Qt GUI Viewer" OFF) # QtViewer requires Qt6
+option(BUILD_BONSAIVIEWER "Build Bonsai Viewer" OFF) # Requires Qt6 + OpenGL 4.5
+option(BUILD_BONSAIVIEWER_TESTS "Build unit tests for Bonsai Viewer core (fetches Catch2 v3)" OFF)
 option(BUILD_PACKAGE "" OFF)
-# Most users probably need just common schemas,
-# but we're keeping it `OFF` by default to avoid disruption
-# (e.g. all Python distribution would need to adapt this option to be set).
+
 option(
-    BUILD_ONLY_COMMON_SCHEMAS
-    "Build only common IFC schemas (2x3, 4, 4x3_add2). By default all schemas will be built."
+    IFCOPENSHELL_DEPLOY_QT_RUNTIME
+    "Deploy Qt runtime dependencies for installed Qt applications."
+    ON
+)
+option(
+    IFCOPENSHELL_DEPLOY_QT_TRANSLATIONS
+    "Deploy Qt translation catalogs with installed Qt applications."
     OFF
 )
-option(SCHEMA_VERSIONS "Explicitly specify schemas to build." "")
 
 option(WITH_OPENCASCADE "Enable geometry interpretation using Open CASCADE" ON)
 option(WITH_CGAL "Enable geometry interpretation using CGAL" ON)
+option(WITH_MANIFOLD "Enable geometry interpretation using Manifold" OFF)
 option(COLLADA_SUPPORT "Build IfcConvert with COLLADA support (requires OpenCOLLADA)." ON)
 option(GLTF_SUPPORT "Build IfcConvert with glTF support (requires json.hpp)." OFF)
-option(HDF5_SUPPORT "Enable HDF5 support (requires HDF5, zlib)" ON)
 option(WITH_PROJ "Enable output of Earth-Centered Earth-Fixed glTF output using the PROJ library" OFF)
-option(IFCXML_SUPPORT "Build IfcParse with ifcXML support (requires libxml2)." ON)
 option(USD_SUPPORT "Build IfcConvert with USD support (requires pixar's USD library)." OFF)
-option(WITH_RELATIONSHIP_VALIDATION "Build IfcConvert with option to validate geometrical relationships." OFF)
 option(WITH_ROCKSDB "Support a RocksDB key-value store as a file backend in IfcOpenShell" OFF)
 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
-    "Override the version defined in buildinfo.cpp with the file VERSION in the repository root"
-    OFF
-)
-option(USE_CCACHE "Enable use of ccache if it's available from PATH." ON)
+option(VERSION_OVERRIDE "Override the version defined in buildinfo.cpp with the file VERSION in the repository root" OFF)
 
-set(PYTHON_MODULE_INSTALL_DIR
-    ""
-    CACHE PATH
+set(
+    PYTHON_MODULE_INSTALL_DIR
+    "" CACHE PATH
     "Directory to install IfcPython package to. By default package is installed in found Python's site-packages."
 )
 
+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})
 
@@ -133,18 +127,16 @@ if(MINIMAL_BUILD)
     set(WITH_CGAL OFF)
     set(COLLADA_SUPPORT OFF)
     set(GLTF_SUPPORT OFF)
-    set(HDF5_SUPPORT OFF)
-    set(IFCXML_SUPPORT OFF)
     set(USD_SUPPORT OFF)
 endif()
 
-if((BUILD_CONVERT OR BUILD_GEOMSERVER OR BUILD_IFCPYTHON) AND (NOT BUILD_IFCGEOM))
+if((BUILD_CONVERT OR BUILD_GEOMSERVER OR BUILD_IFCPYTHON) AND(NOT BUILD_IFCGEOM))
     message(STATUS "'IfcGeom' is required with current outputs")
     set(BUILD_IFCGEOM ON)
 endif()
 
 find_program(CCACHE_FOUND ccache)
-if(USE_CCACHE AND CCACHE_FOUND)
+if(CCACHE_FOUND)
     message(STATUS "`ccache` is found, using it as a compiler launcher.")
     set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE "${CCACHE_FOUND}")
     if(MSVC)
@@ -153,15 +145,17 @@ if(USE_CCACHE AND CCACHE_FOUND)
         set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT "$<$<CONFIG:Debug,RelWithDebInfo>:Embedded>")
         # Not needed for Ninja.
         if(CMAKE_GENERATOR MATCHES "Visual Studio")
-            file(COPY_FILE ${CCACHE_FOUND} ${CMAKE_BINARY_DIR}/cl.exe ONLY_IF_DIFFERENT)
-            set(CMAKE_VS_GLOBALS "CLToolExe=cl.exe" "CLToolPath=${CMAKE_BINARY_DIR}" "UseMultiToolTask=true")
+            file(COPY_FILE
+                ${CCACHE_FOUND} ${CMAKE_BINARY_DIR}/cl.exe
+                ONLY_IF_DIFFERENT)
+            set(CMAKE_VS_GLOBALS
+                "CLToolExe=cl.exe"
+                "CLToolPath=${CMAKE_BINARY_DIR}"
+                "UseMultiToolTask=true"
+            )
         endif()
     endif()
 endif()
-mark_as_advanced(CCACHE_FOUND)
-
-# Variable to accumulate swig definitions from various submodules.
-set(SWIG_DEFINES "")
 
 if(MSVC AND MSVC_PARALLEL_BUILD)
     add_definitions("/MP")
@@ -177,28 +171,23 @@ endif()
 
 include(GNUInstallDirs)
 
-set(IFCOPENSHELL_EXPORT_TARGETS "${PROJECT_NAME}Targets")
-
-# On Windows Release and Debug binaries are not compatible.
-# So we add a postfix to avoid issues and allow release and debug installations to coexist.
-if(WIN32)
-    set(CMAKE_DEBUG_POSTFIX "_d")
+if(NOT INCLUDEDIR)
+    set(INCLUDEDIR include)
 endif()
+if(NOT IS_ABSOLUTE ${INCLUDEDIR})
+    set(INCLUDEDIR ${CMAKE_INSTALL_INCLUDEDIR})
+endif()
+message(STATUS "INCLUDEDIR: ${INCLUDEDIR}")
 
-if(BUILD_SHARED_LIBS)
-    add_definitions(-DIFC_SHARED_BUILD)
-    if(MSVC)
-        message(
-            WARNING
-            "Building DLLs against the static VC run-time. This is not recommended if the DLLs are to be redistributed."
-        )
-        # C4521: 'identifier' : class 'type' needs to have dll-interface to be used by clients of class 'type2'
-        # There will be couple hundreds of these so suppress them away, https://msdn.microsoft.com/en-us/library/esew7y1w.aspx
-        add_definitions(-wd4251)
-    endif()
+if(MSVC)
+    message(WARNING "Building DLLs against the static VC run-time. This is not recommended if the DLLs are to be redistributed.")
+    # C4521: 'identifier' : class 'type' needs to have dll-interface to be used by clients of class 'type2'
+    # There will be couple hundreds of these so suppress them away, https://msdn.microsoft.com/en-us/library/esew7y1w.aspx
+    add_definitions(-wd4251)
 endif()
 
 UNIFY_ENVVARS_AND_CACHE(BOOST_ROOT)
+UNIFY_ENVVARS_AND_CACHE(BOOST_LIBRARYDIR)
 
 if(NOT MINIMAL_BUILD)
     UNIFY_ENVVARS_AND_CACHE(PYTHON_INCLUDE_DIR)
@@ -214,71 +203,75 @@ foreach(option_flag IN LISTS option_flags)
     convert_env_var_to_bool("${option_flag}")
 endforeach()
 
+if(WITH_CGAL)
+    find_package(CGAL REQUIRED)
+    set(SWIG_DEFINES ${SWIG_DEFINES} -DIFOPSH_WITH_CGAL)
+    list(APPEND GEOMETRY_KERNELS cgal)
+endif()
+
 if(BUILD_IFCGEOM AND WITH_OPENCASCADE)
     find_package(OpenCASCADE REQUIRED)
-    add_definitions(-DIFOPSH_WITH_OPENCASCADE)
+    # Map OpenCASCADE_LIBRARIES variable from OpenCASCADEConfig.cmake to OpenCASCADE_LIBRARIES used by kernel generic cmake file
+    set(OpenCASCADE_LIBRARIES ${OpenCASCADE_LIBRARIES})
     set(SWIG_DEFINES ${SWIG_DEFINES} -DIFOPSH_WITH_OPENCASCADE)
     list(APPEND GEOMETRY_KERNELS opencascade)
 endif()
 
-set(GLTF_LIBRARIES "")
+message(STATUS "BUILD_IFCGEOM WITH_MANIFOLD: ${BUILD_IFCGEOM} ${WITH_MANIFOLD}")
+
+if(BUILD_IFCGEOM AND WITH_MANIFOLD)
+    find_package(manifold CONFIG REQUIRED)
+    if(TARGET manifold::manifold)
+        set(MANIFOLD_LIBRARIES manifold::manifold)
+    elseif(TARGET manifold)
+        set(MANIFOLD_LIBRARIES manifold)
+    else()
+        message(FATAL_ERROR "Unable to determine manifold target")
+    endif()
+    list(APPEND GEOMETRY_KERNELS manifold)
+endif()
+
+if(BUILD_IFCGEOM)
+    list(APPEND GEOMETRY_KERNELS passthrough)
+endif()
+
 if(GLTF_SUPPORT)
     find_package(nlohmann_json REQUIRED)
-    set(GLTF_LIBRARIES nlohmann_json::nlohmann_json)
-    add_definitions(-DWITH_GLTF)
-    set(SWIG_DEFINES ${SWIG_DEFINES} -DWITH_GLTF)
 endif()
 
 # Add USD support to serializers
-set(USD_LIBRARIES "")
 if(USD_SUPPORT)
     find_package(USD REQUIRED)
-    set(USD_LIBRARIES pxr::USD)
 endif(USD_SUPPORT)
 
-set(ROCKSDB_LIBRARIES "")
-if(WITH_ROCKSDB)
+if (WITH_ROCKSDB)
     # Temporaily mess with CMAKE_FIND_PACKAGE_PREFER_CONFIG to help RocksDB
     # find it's zstd dependency on Windows.
     # Only do it on Windows, otherwise it might create problems as
     # findzstd and zstd-config target names do not match.
-    # https://github.com/facebook/rocksdb/pull/13975
     if(WIN32)
         set(TEMP CMAKE_FIND_PACKAGE_PREFER_CONFIG)
         set(CMAKE_FIND_PACKAGE_PREFER_CONFIG TRUE)
     endif()
     find_package(RocksDB CONFIG REQUIRED)
-    mark_as_advanced(RocksDB_DIR)
     if(WIN32)
         set(CMAKE_FIND_PACKAGE_PREFER_CONFIG ${TEMP})
     endif()
 
     message(STATUS "RocksDB: found at '${RocksDB_DIR}'.")
-    add_library(IFCOPENSHELL_RocksDB INTERFACE)
-    set(ROCKSDB_LIBRARIES "IFCOPENSHELL_RocksDB")
-    target_compile_definitions(IFCOPENSHELL_RocksDB INTERFACE IFOPSH_WITH_ROCKSDB)
-    set(SWIG_DEFINES ${SWIG_DEFINES} -DIFOPSH_WITH_ROCKSDB)
-    # Shared binaries for `rocksdb` only support limited API (only `c.h`), but we use `db.h` API.
-    # So rocksdb supported only as a static library.
-    # See https://github.com/facebook/rocksdb/issues/981.
-    target_link_libraries(IFCOPENSHELL_RocksDB INTERFACE RocksDB::rocksdb)
 
-    if(WITH_ZSTD)
+    if (WITH_ZSTD)
         # @todo do we actually need the zstd include dir or rather just pass
         # the libzstd.a along with the rocksdb library when needed and feature
         # detect based on rocksdb API?
         find_package(zstd CONFIG REQUIRED)
-        mark_as_advanced(zstd_DIR)
         message(STATUS "zstd: found at '${zstd_DIR}'.")
-        target_link_libraries(IFCOPENSHELL_RocksDB INTERFACE zstd::libzstd_static)
     endif()
-
-    install(TARGETS IFCOPENSHELL_RocksDB EXPORT ${IFCOPENSHELL_EXPORT_TARGETS})
 endif()
 
 # Find Boost: On win32 the (hardcoded) default is to use static libraries and
 # runtime, when doing running conda-build we pick what conda prepared for us.
-if(WIN32 AND NOT DEFINED ENV{CONDA_BUILD})
+if(WIN32 AND("$ENV{CONDA_BUILD}" STREQUAL ""))
     set(Boost_USE_STATIC_LIBS ON)
     set(Boost_USE_STATIC_RUNTIME OFF)
     set(Boost_USE_MULTITHREADED ON)
@@ -309,14 +302,8 @@ if(WASM_BUILD)
 else()
     # @todo review this, shouldn't this be all possible header-only now?
     # ... or rewritten using C++17 features?
-    set(BOOST_COMPONENTS
-        system
-        program_options
-        regex
-        thread
-        date_time
-        iostreams
-    )
+    # set(BOOST_COMPONENTS system program_options regex thread date_time iostreams)
+    set(BOOST_COMPONENTS program_options regex thread date_time iostreams)
 endif()
 
 if(USE_MMAP)
@@ -326,17 +313,6 @@ if(USE_MMAP)
     else()
         set(BOOST_COMPONENTS ${BOOST_COMPONENTS} iostreams)
     endif()
-
-    add_definitions(-DUSE_MMAP)
-endif()
-
-# Handle CGAL after Boost settings are set, since CGAL will use them too.
-# Do `find_package(Boost)` only after this, to make sure `FindBoost` finds correct components.
-# Otherwise it will find components needed for CGAL and we might some libraries.
-if(WITH_CGAL)
-    find_package(CGAL REQUIRED)
-    set(CGAL_LIBRARIES IFCOPENSHELL_CGAL)
-    list(APPEND GEOMETRY_KERNELS cgal)
 endif()
 
 find_package(Boost REQUIRED COMPONENTS ${BOOST_COMPONENTS})
@@ -345,17 +321,8 @@ message(STATUS "Boost libraries found in ${Boost_LIBRARY_DIRS}")
 
 if(COLLADA_SUPPORT)
     find_package(OpenCOLLADA REQUIRED)
-    add_definitions(-DWITH_OPENCOLLADA)
 endif()
 
-if(HDF5_SUPPORT)
-    find_package(HDF5 REQUIRED COMPONENTS C CXX)
-    set(IFCOPENSHELL_LIBRARIES ${IFCOPENSHELL_LIBRARIES} hdf5::hdf5_cpp)
-
-    add_definitions(-DWITH_HDF5)
-    set(SWIG_DEFINES ${SWIG_DEFINES} -DWITH_HDF5)
-endif(HDF5_SUPPORT)
-
 if(ENABLE_BUILD_OPTIMIZATIONS)
     if(MSVC)
         # NOTE: RelWithDebInfo and Release use O2 (= /Ox /Gl /Gy/ = Og /Oi /Ot /Oy /Ob2 /Gs /GF /Gy) by default,
@@ -368,20 +335,12 @@ if(ENABLE_BUILD_OPTIMIZATIONS)
 
         # Linker
         # /OPT:REF enables also /OPT:ICF and disables INCREMENTAL
-        set(LINKER_FLAGS_RELEASE "/LTCG /OPT:REF")
-        # /OPT:NOICF is recommended when /DEBUG is used (http://msdn.microsoft.com/en-us/library/xe4t6fc1.aspx)
-        set(LINKER_FLAGS_RELWITHDEBINFO "/DEBUG /OPT:NOICF")
+        set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /LTCG /OPT:REF")
 
-        set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${LINKER_FLAGS_RELEASE}")
-        set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO
-            "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${LINKER_FLAGS_RELWITHDEBINFO}"
-        )
-        set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${LINKER_FLAGS_RELEASE}")
-        set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${LINKER_FLAGS_RELWITHDEBINFO}")
-        set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} ${LINKER_FLAGS_RELEASE}")
-        set(CMAKE_MODULE_LINKER_FLAGS_RELWITHDEBINFO
-            "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} ${LINKER_FLAGS_RELWITHDEBINFO}"
-        )
+        # /OPT:NOICF is recommended when /DEBUG is used (http://msdn.microsoft.com/en-us/library/xe4t6fc1.aspx)
+        set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG /OPT:NOICF")
+        set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG /OPT:REF")
+        set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /DEBUG /OPT:NOICF")
     else()
         # GCC-like: Release should use O3 but RelWithDebInfo 02 so enforce 03. Anything other useful that could be added here?
         set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3")
@@ -430,7 +389,7 @@ if(MSVC)
     endif()
 
     # Enforce standards-conformance on VS > 2015, older Boost versions fail to compile with this
-    if(MSVC_VERSION GREATER 1900 AND (Boost_MAJOR_VERSION GREATER 1 OR Boost_MINOR_VERSION GREATER 66))
+    if(MSVC_VERSION GREATER 1900 AND(Boost_MAJOR_VERSION GREATER 1 OR Boost_MINOR_VERSION GREATER 66))
         add_definitions(-permissive-)
     endif()
 
@@ -449,11 +408,11 @@ if(MSVC)
     #     endforeach()
     # endif()
 
-    add_definitions(-D_ENABLE_EXTENDED_ALIGNED_STORAGE)
-    # See #5158.
-    if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.40)
-        add_definitions(-D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
-    endif()
+	add_definitions(-D_ENABLE_EXTENDED_ALIGNED_STORAGE)
+	# See #5158.
+	if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.40)
+		add_definitions(-D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)
+	endif()
 else()
     add_definitions(-Wall -Wextra)
 
@@ -463,10 +422,7 @@ else()
         add_definitions(-Wno-maybe-uninitialized)
     endif()
 
-    if(
-        CMAKE_CXX_COMPILER_ID MATCHES "GNU"
-        AND (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 9.0 OR CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 9.0)
-    )
+    if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 9.0 OR CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 9.0))
         # OpenCascade spews a lot of deprecated-copy warnings
         add_definitions(-Wno-deprecated-copy)
     endif()
@@ -477,45 +433,28 @@ else()
     endif()
 endif(MSVC)
 
-include_directories(${OPENCOLLADA_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS} ${HDF5_INCLUDE_DIR})
+include_directories(${INCLUDE_DIRECTORIES}
+	${Boost_INCLUDE_DIRS}
+    ${CGAL_INCLUDE_DIR} ${GMP_INCLUDE_DIR} ${MPFR_INCLUDE_DIR}
+)
 
 if(NOT SCHEMA_VERSIONS)
-    # `WASM_BUILD` - super arbitrarily try to keep size down at least a little bit
-    if(BUILD_ONLY_COMMON_SCHEMAS OR WASM_BUILD)
+    if(WASM_BUILD)
+        # super arbitrarily try to keep size down at least a little bit
         set(SCHEMA_VERSIONS "2x3" "4" "4x3_add2")
     else()
-        set(SCHEMA_VERSIONS
-            "2x3"
-            "4"
-            "4x1"
-            "4x2"
-            "4x3"
-            "4x3_tc1"
-            "4x3_add1"
-            "4x3_add2"
-        )
+        set(SCHEMA_VERSIONS "2x3" "4" "4x1" "4x2" "4x3" "4x3_tc1" "4x3_add1" "4x3_add2")
     endif()
 endif()
 
 message(STATUS "IFC SCHEMA_VERSIONS that will be used for the build: ${SCHEMA_VERSIONS}.")
 
-set(SCHEMA_DEFINITIONS "")
-foreach(schema ${SCHEMA_VERSIONS})
-    list(APPEND SCHEMA_DEFINITIONS "-DHAS_SCHEMA_${schema}")
-endforeach()
-
-string(REPLACE ";" ")(" schema_version_seq "(${SCHEMA_VERSIONS})")
-list(APPEND SCHEMA_DEFINITIONS "-DSCHEMA_SEQ=${schema_version_seq}")
-
 if(COMPILE_SCHEMA)
     # @todo, this appears to be untested at the moment
     find_package(PythonInterp)
 
     if(NOT PYTHONINTERP_FOUND)
-        message(
-            FATAL_ERROR
-            "A Python interpreter is necessary when COMPILE_SCHEMA is enabled. Disable COMPILE_SCHEMA or fix Python paths to proceed."
-        )
+        message(FATAL_ERROR "A Python interpreter is necessary when COMPILE_SCHEMA is enabled. Disable COMPILE_SCHEMA or fix Python paths to proceed.")
     endif()
 
     set(IFC_RELEASE_NOT_USED ${SCHEMA_VERSIONS})
@@ -535,10 +474,7 @@ if(COMPILE_SCHEMA)
 
     if("${PYPARSING_FOUND}" STREQUAL "-1")
         message(STATUS "Installing pyparsing")
-        execute_process(
-            COMMAND ${PYTHON_EXECUTABLE} -m pip "install" --user pyparsing
-            RESULT_VARIABLE SUCCESS
-        )
+        execute_process(COMMAND ${PYTHON_EXECUTABLE} -m pip "install" --user pyparsing RESULT_VARIABLE SUCCESS)
 
         if(NOT "${SUCCESS}" STREQUAL "0")
             execute_process(COMMAND pip "install" --user pyparsing RESULT_VARIABLE SUCCESS)
@@ -553,23 +489,19 @@ if(COMPILE_SCHEMA)
 
     # Bootstrap the parser
     message(STATUS "Compiling schema, this will take a while...")
-    execute_process(
-        COMMAND ${PYTHON_EXECUTABLE} bootstrap.py express.bnf
+    execute_process(COMMAND ${PYTHON_EXECUTABLE} bootstrap.py express.bnf
         WORKING_DIRECTORY ../src/ifcexpressparser
         OUTPUT_FILE express_parser.py
-        RESULT_VARIABLE SUCCESS
-    )
+        RESULT_VARIABLE SUCCESS)
 
     if(NOT "${SUCCESS}" STREQUAL "0")
         message(FATAL_ERROR "Failed to bootstrap parser. Make sure pyparsing is installed")
     endif()
 
     # Generate code
-    execute_process(
-        COMMAND ${PYTHON_EXECUTABLE} ../ifcexpressparser/express_parser.py ../../${COMPILE_SCHEMA}
+    execute_process(COMMAND ${PYTHON_EXECUTABLE} ../ifcexpressparser/express_parser.py ../../${COMPILE_SCHEMA}
         WORKING_DIRECTORY ../src/ifcparse
-        OUTPUT_VARIABLE COMPILED_SCHEMA_NAME
-    )
+        OUTPUT_VARIABLE COMPILED_SCHEMA_NAME)
 
     # Prevent the schema that had just been compiled from being excluded
     foreach(schema ${SCHEMA_VERSIONS})
@@ -584,17 +516,40 @@ if(NOT Boost_VERSION LESS 105800)
     add_definitions(-DBOOST_OPTIONAL_USE_OLD_DEFINITION_OF_NONE)
 endif()
 
+add_subdirectory(../src/plugin plugin)
+
 add_subdirectory(../src/ifcparse ifcparse)
 set(IFCOPENSHELL_LIBRARIES IfcParse)
 
+if(BUILD_IFCPARSE_EXPERIMENTAL_WRAPPER)
+    add_subdirectory(../src/wrappergen wrappergen)
+endif()
+
 if(BUILD_IFCGEOM)
+    # CGAL::CGAL target already has dependencies resolved.
+    if(WITH_CGAL AND CGAL_DIR)
+        set(CGAL_LIBRARIES CGAL::CGAL)
+        message(STATUS "Using found CGAL package at '${CGAL_DIR}'")
+    elseif(WITH_CGAL AND NOT CGAL_DIR)
+        find_library(libGMP NAMES gmp mpir PATHS ${GMP_LIBRARY_DIR} NO_DEFAULT_PATH)
+        find_library(libMPFR NAMES mpfr PATHS ${MPFR_LIBRARY_DIR} NO_DEFAULT_PATH)
+        if(NOT libGMP)
+            message(FATAL_ERROR "Unable to find GMP library files, aborting")
+        endif()
+        if(NOT libMPFR)
+            message(FATAL_ERROR "Unable to find MPFR library files, aborting")
+        endif()
+
+        list(APPEND CGAL_LIBRARIES "${libMPFR}")
+        list(APPEND CGAL_LIBRARIES "${libGMP}")
+    endif()
+
     add_subdirectory(../src/ifcgeom ifcgeom)
 endif(BUILD_IFCGEOM)
 
-if(BUILD_CONVERT OR BUILD_IFCPYTHON)
+if(BUILD_CONVERT OR BUILD_IFCPYTHON OR BUILD_BONSAIVIEWER)
     add_subdirectory(../src/serializers serializers)
-    set(IFCOPENSHELL_LIBRARIES ${IFCOPENSHELL_LIBRARIES} ${SERIALIZER_SCHEMA_LIBRARIES})
-endif(BUILD_CONVERT OR BUILD_IFCPYTHON)
+endif(BUILD_CONVERT OR BUILD_IFCPYTHON OR BUILD_BONSAIVIEWER)
 
 if(BUILD_CONVERT)
     add_subdirectory(../src/ifcconvert ifcconvert)
@@ -613,8 +568,8 @@ if(ADD_COMMIT_SHA)
     endif()
 
     if(GIT_FOUND)
-        if(VERSION_OVERRIDE)
-            set(git_branch ${RELEASE_VERSION})
+        if (VERSION_OVERRIDE)
+            set (git_branch ${RELEASE_VERSION})
         else()
             message("git found: ${GIT_EXECUTABLE} with version ${GIT_VERSION_STRING}")
             execute_process(
@@ -626,8 +581,8 @@ if(ADD_COMMIT_SHA)
             string(REPLACE "\n" ";" git_branch_list "${git_branches}")
 
             foreach(git_branch_candidate IN ITEMS ${git_branch_list})
-                string(REPLACE "*" "" git_branch_candidate_temp "${git_branch_candidate}")
-                string(STRIP "${git_branch_candidate_temp}" git_branch_candidate_2)
+		        string(REPLACE "*" "" git_branch_candidate_temp "${git_branch_candidate}")
+		        string(STRIP "${git_branch_candidate_temp}" git_branch_candidate_2)
                 if(NOT git_branch_candidate_2 MATCHES "^HEAD$")
                     string(REPLACE "/" ";" git_branch_candidate_2_list "${git_branch_candidate_2}")
                     list(GET git_branch_candidate_2_list -1 git_branch)
@@ -645,13 +600,13 @@ if(ADD_COMMIT_SHA)
         message(STATUS "IfcOpenShell branch: \"${git_branch}\"")
         message(STATUS "IfcOpenShell commit: \"${git_sha}\"")
 
-        if("${git_branch}" STREQUAL "" OR "${git_sha}" STREQUAL "")
+        if ("${git_branch}" STREQUAL "" OR "${git_sha}" STREQUAL "")
             message(FATAL_ERROR "Unable to determine commit sha and/or branch")
         endif()
 
-        target_compile_definitions(
-            IfcParse
-            PRIVATE -DIFCOPENSHELL_BRANCH=${git_branch} -DIFCOPENSHELL_COMMIT=${git_sha}
+        target_compile_definitions(IfcParse PRIVATE
+            -DIFCOPENSHELL_BRANCH=${git_branch}
+            -DIFCOPENSHELL_COMMIT=${git_sha}
         )
     endif()
 endif(ADD_COMMIT_SHA)
@@ -669,10 +624,6 @@ if(BUILD_DOCUMENTATION)
     add_subdirectory(../docs docs)
 endif()
 
-if(BUILD_IFCPYTHON)
-    add_subdirectory(../src/ifcwrap ifcwrap)
-endif()
-
 if(BUILD_EXAMPLES)
     add_subdirectory(../src/examples examples)
 endif()
@@ -685,32 +636,82 @@ if(BUILD_IFCPYTHON AND WITH_CGAL)
     add_subdirectory(../src/svgfill svgfill)
 endif()
 
+if(BUILD_IFCPYTHON)
+    add_subdirectory(../src/ifcwrap ifcwrap)
+endif()
+
 if(BUILD_QTVIEWER)
     add_subdirectory(../src/qtviewer qtviewer)
 endif()
 
+if(BUILD_IFCGEOM)
+    # install(FILES ${IFCGEOM_H_FILES}
+    #     DESTINATION ${INCLUDEDIR}/ifcgeom
+    # )
+
+    install(FILES ${SCHEMA_AGNOSTIC_H_FILES}
+        DESTINATION ${INCLUDEDIR}/ifcgeom
+    )
+
+    file(GLOB SERIALIZATION_H_FILES ../src/ifcgeom/serialization/*.h)
+    install(FILES ${SERIALIZATION_H_FILES}
+        DESTINATION ${INCLUDEDIR}/ifcgeom/serialization
+    )
+
+    foreach(kernel ${GEOMETRY_KERNELS})
+        file(GLOB IFCGEOM_H_FILES ../src/ifcgeom/kernels/${kernel}/*.h)
+         install(FILES ${IFCGEOM_H_FILES}
+            DESTINATION ${INCLUDEDIR}/ifcgeom/kernels/${kernel}
+        )
+    endforeach()
+
+    install(TARGETS ${IFCGEOM_SCHEMA_LIBRARIES} ${kernel_libraries} IfcGeom)
+endif(BUILD_IFCGEOM)
+if(BUILD_BONSAIVIEWER)
+    if(BUILD_BONSAIVIEWER_TESTS)
+        # Catch2 v3 — fetched on demand. Test option is OFF by default so the
+        # default build remains offline-capable.
+        include(FetchContent)
+        FetchContent_Declare(
+            Catch2
+            GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+            GIT_TAG        v3.5.4
+            GIT_SHALLOW    TRUE
+        )
+        FetchContent_MakeAvailable(Catch2)
+        list(APPEND CMAKE_MODULE_PATH ${catch2_SOURCE_DIR}/extras)
+        include(CTest)
+        include(Catch)
+        enable_testing()
+    endif()
+
+    add_subdirectory(../src/ifcviewer ifcviewer)
+    add_subdirectory(../src/ifcviewer-minimal ifcviewer-minimal)
+    add_subdirectory(../src/bonsaiviewer bonsaiviewer)
+endif()
+
 # Cmake uninstall target
 if(NOT TARGET uninstall)
     configure_file(
         "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
         "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
-        IMMEDIATE
-        @ONLY
-    )
+        IMMEDIATE @ONLY)
 
-    add_custom_target(uninstall COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+    add_custom_target(uninstall
+        COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
 endif()
 
 # Packaging
-list(APPEND CPACK_SOURCE_IGNORE_FILES "/\\\\.git" "/build/" "/.pytest_cache/" "/__pycache__/")
+list(APPEND CPACK_SOURCE_IGNORE_FILES
+    "/\\\\.git"
+    "/build/"
+    "/.pytest_cache/"
+    "/__pycache__/"
+)
 set(CPACK_SOURCE_INSTALLED_DIRECTORIES "${CMAKE_SOURCE_DIR}/..;/")
-set(CPACK_PACKAGE_NAME
-    "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}${EXTRA_VERSION}"
-)
+set(CPACK_PACKAGE_NAME "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}${EXTRA_VERSION}")
 set(CPACK_SOURCE_PACKAGE_FILE_NAME "${PROJECT_NAME}-${PROJECT_VERSION}${EXTRA_VERSION}")
-set(CPACK_PACKAGE_FILE_NAME
-    "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}${EXTRA_VERSION}-${CMAKE_SYSTEM_NAME}"
-)
+SET(CPACK_PACKAGE_FILE_NAME "${PROJECT_NAME}-${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}${EXTRA_VERSION}-${CMAKE_SYSTEM_NAME}")
 set(CPACK_PACKAGE_DIRECTORY "${PROJECT_BINARY_DIR}/assets")
 set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "IfcOpenShell")
 set(CPACK_PACKAGE_DESCRIPTION "IfcOpenShell.")
@@ -723,7 +724,6 @@ set(CPACK_PACKAGE_VERSION_PATCH "${PROJECT_VERSION_PATCH}")
 set(CPACK_GENERATOR "TGZ;DEB")
 set(CPACK_SOURCE_GENERATOR "TGZ")
 
-set(BOOST_DEPS "")
 foreach(COMPONENT IN ITEMS ${BOOST_COMPONENTS})
     string(REPLACE "_" "-" COMP ${COMPONENT})
     set(BOOST_DEPS "${BOOST_DEPS}, libboost-${COMP}-dev")
@@ -731,19 +731,13 @@ endforeach(COMPONENT)
 
 set(CPACK_DEBIAN_PACKAGE_NAME "${PROJECT_NAME}")
 set(CPACK_DEBIAN_PACKAGE_MAINTAINER "${CPACK_PACKAGE_CONTACT}")
-set(CPACK_DEBIAN_PACKAGE_DEPENDS
-    "python3, libxml2, libocct-foundation-dev, libocct-modeling-algorithms-dev, libocct-modeling-data-dev, libocct-ocaf-dev, libocct-visualization-dev, libocct-data-exchange-dev, libhdf5-serial-dev, libpython3-dev, python3-pytest ${BOOST_DEPS}"
-)
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "python3, libxml2, libocct-foundation-dev, libocct-modeling-algorithms-dev, libocct-modeling-data-dev, libocct-ocaf-dev, libocct-visualization-dev, libocct-data-exchange-dev, libpython3-dev, python3-pytest ${BOOST_DEPS}")
 set(CPACK_DEBIAN_PACKAGE_DESCRIPTION_SUMMARY "${CPACK_PACKAGE_DESCRIPTION_SUMMARY}")
 set(CPACK_DEBIAN_PACKAGE_DESCRIPTION "${CPACK_PACKAGE_DESCRIPTION}")
 set(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
 set(CPACK_DEBIAN_PACKAGE_SECTION "science")
-set(CPACK_DEBIAN_PACKAGE_VERSION
-    "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}${EXTRA_VERSION}"
-)
+set(CPACK_DEBIAN_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}${EXTRA_VERSION}")
 set(CPACK_DEBIAN_ARCHITECTURE "${CMAKE_SYSTEM_PROCESSOR}")
 # set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA "${CMAKE_SOURCE_DIR}/cmake/debian/postinst")
 
 include(CPack)
-
-include(package_export.cmake)

cmake/CMakePresets.json

@@ -15,7 +15,6 @@
         "BUILD_CONVERT": "ON",
         "BUILD_IFCMAX": "OFF",
         "IFCXML_SUPPORT": "ON",
-        "HDF5_SUPPORT": "ON",
         "SCHEMA_VERSIONS": "4x3_add2",
         "CMAKE_GENERATOR_PLATFORM": "",
         "CMAKE_GENERATOR_TOOLSET": ""
@@ -50,8 +49,6 @@
         "MPFR_LIBRARY_DIR": "$env{LIBRARY_PREFIX}/lib",
         "Boost_LIBRARY_DIR": "$env{LIBRARY_PREFIX}/lib",
         "Boost_INCLUDE_DIR": "$env{LIBRARY_PREFIX}/include",
-        "HDF5_INCLUDE_DIR": "$env{LIBRARY_PREFIX}/include",
-        "HDF5_LIBRARY_DIR": "$env{LIBRARY_PREFIX}/lib",
         "ZLIB_INCLUDE_DIR": "$env{LIBRARY_PREFIX}/include"
       }
     },
@@ -110,4 +107,4 @@
       }
     }
   ]
-}
+}

cmake/FindCGAL.cmake

@@ -6,7 +6,7 @@
 # - `GMP_LIBRARY_DIR`
 # - `MPFR_INCLUDE_DIR`
 # - `MPFR_LIBRARY_DIR`
-# If input variables are not specified, try to find HDF5 config.
+# If input variables are not specified, try to find CGAL config.
 # Input variables could also be provided as environment variables.
 #
 # Output targets:

cmake/FindHDF5.cmake

@@ -1,109 +0,0 @@
-#
-# Input variables:
-# - `HDF5_INCLUDE_DIR`
-# - `HDF5_LIBRARY_DIR`
-# - `HDF5_LIBRARIES`
-# If input variables are not specified, try to find HDF5 config.
-# Input variables could also be provided as environment variables.
-#
-# Output variables:
-# - `HDF5_INCLUDE_DIR`
-# - `HDF5_LIBRARY_DIR`
-# - `HDF5_LIBRARIES`
-#
-
-UNIFY_ENVVARS_AND_CACHE(HDF5_INCLUDE_DIR)
-UNIFY_ENVVARS_AND_CACHE(HDF5_LIBRARY_DIR)
-UNIFY_ENVVARS_AND_CACHE(HDF5_LIBRARIES)
-
-# To avoid cyclic calls to this file
-list(REMOVE_ITEM CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR})
-
-if(NOT HDF5_INCLUDE_DIR)
-    message(STATUS "No HDF5 include directory specified")
-else()
-    set(HDF5_INCLUDE_DIR "${HDF5_INCLUDE_DIR}" CACHE FILEPATH "HDF5 header files")
-endif()
-
-if(NOT HDF5_LIBRARY_DIR)
-    message(STATUS "No HDF5 library directory specified")
-else()
-    set(HDF5_LIBRARY_DIR "${HDF5_LIBRARY_DIR}" CACHE FILEPATH "HDF5 library files")
-endif()
-
-if(HDF5_LIBRARY_DIR)
-    # result of the HDF5 ctest package
-    # Find zlib using cmake find_library. How should this be implemented?
-    # FIND_LIBRARY(NAMES z libz libz_debug PATHS ... NO_DEFAULT_PATH)
-    if(NOT DEFINED ENV{CONDA_BUILD})
-        # result of the HDF5 ctest package
-        if(WIN32)
-            set(zlib_post lib)
-            set(lib_ext lib)
-        else()
-            set(lib_ext a)
-        endif()
-
-        if("${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
-            set(debug_postfix "_debug")
-        endif()
-
-        set(HDF5_LIBRARIES
-            "${HDF5_LIBRARY_DIR}/libhdf5_cpp${debug_postfix}.${lib_ext}"
-            "${HDF5_LIBRARY_DIR}/libhdf5${debug_postfix}.${lib_ext}"
-            "${HDF5_LIBRARY_DIR}/libz${zlib_post}${debug_postfix}.${lib_ext}"
-            "${HDF5_LIBRARY_DIR}/libsz${debug_postfix}.${lib_ext}"
-            "${HDF5_LIBRARY_DIR}/libaec${debug_postfix}.${lib_ext}"
-        )
-    else()
-        message(STATUS "Packaging hdf5 and zlib for conda distribution")
-
-        if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-            # macOS
-            set(zlib_post libz)
-            set(lib_ext dylib)
-            set(HDF5_LIBRARIES
-                "${HDF5_LIBRARY_DIR}/libhdf5_cpp.${lib_ext}"
-                "${HDF5_LIBRARY_DIR}/libhdf5.${lib_ext}"
-                "${HDF5_LIBRARY_DIR}/${zlib_post}.${lib_ext}"
-            )
-        else()
-            # linux and windows
-            # Find HDF5 package
-            find_package(HDF5 REQUIRED COMPONENTS C CXX)
-            # Find ZLIB package
-            find_package(ZLIB REQUIRED)
-            # Include directories
-            include_directories(${HDF5_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIRS})
-            # Link libraries
-            set(HDF5_LIBRARIES ${HDF5_LIBRARIES} ${ZLIB_LIBRARIES})
-            message(STATUS "HDF5 libraries: ${HDF5_LIBRARIES}")
-        endif()
-    endif()
-endif()
-
-if(NOT HDF5_INCLUDE_DIR OR NOT HDF5_LIBRARY_DIR)
-    # First try to find it as a config.
-    find_package(HDF5 CONFIG)
-    mark_as_advanced(HDF5_DIR)
-    if(HDF5_DIR)
-        message(STATUS "HDF5: found config at '${HDF5_DIR}'.")
-        set(HDF5_LIBRARIES hdf5_cpp-static)
-    else()
-        # If it failed, still try to find as a module.
-        # E.g. on Ubuntu `libhdf5-dev` doesn't provie hdf5-config.cmake.
-        # Will automatically fill HDF5_LIBRARIES and HDF5_INCLUDE_DIR.
-        find_package(HDF5 COMPONENTS CXX)
-        if(NOT HDF5_INCLUDE_DIR)
-            message(
-                FATAL_ERROR
-                "HDF5_INCLUDE_DIR is not provided (current value: '${HDF5_INCLUDE_DIR}'). "
-                "HDF5_LIBRARY_DIR is not provided (current value: '${HDF5_LIBRARY_DIR}'). "
-                "Also could not find HDF5 package (neither module or config)."
-            )
-        endif()
-    endif()
-endif()
-
-# Restore module path.
-list(PREPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR})

cmake/FindOpenCOLLADA.cmake

@@ -139,7 +139,8 @@ if(NOT OpenCOLLADA_DIR)
     endif()
 endif(NOT OpenCOLLADA_DIR)
 
-if(OPENCOLLADA_FOUND)
-    add_definitions(-DWITH_OPENCOLLADA)
-    set(SWIG_DEFINES ${SWIG_DEFINES} -DWITH_OPENCOLLADA)
+if(OPENCOLLADA_FOUND AND NOT TARGET OpenCOLLADA::OpenCOLLADA)
+    add_library(OpenCOLLADA::OpenCOLLADA INTERFACE IMPORTED)
+    target_include_directories(OpenCOLLADA::OpenCOLLADA INTERFACE ${OPENCOLLADA_INCLUDE_DIRS})
+    target_link_libraries(OpenCOLLADA::OpenCOLLADA INTERFACE ${OPENCOLLADA_LIBRARIES})
 endif()

cmake/FindPROJ.cmake

@@ -6,7 +6,7 @@
 # Input variables could also be provided as environment variables.
 #
 # Output targets:
-# - `PROJ::proj`
+# - `proj::proj`
 #
 
 # To avoid cyclic calls to this file
@@ -34,10 +34,12 @@ if((NOT PROJ_INCLUDE_DIR AND NOT PROJ_LIBRARIES))
             message(FATAL_ERROR "Unable to find PROJ libraries in: ${PROJ_LIBRARY_DIR}")
         endif()
 
-        add_library(PROJ::proj INTERFACE IMPORTED)
-        target_include_directories(PROJ::proj INTERFACE "${PROJ_INCLUDE_DIR}")
-        target_link_libraries(PROJ::proj INTERFACE ${PROJ_LIBRARIES})
-        target_link_directories(PROJ::proj INTERFACE "${PROJ_LIBRARY}")
+        if(NOT TARGET proj::proj)
+            add_library(proj::proj INTERFACE IMPORTED)
+            target_include_directories(proj::proj INTERFACE "${PROJ_INCLUDE_DIR}")
+            target_link_libraries(proj::proj INTERFACE ${PROJ_LIBRARIES})
+            target_link_directories(proj::proj INTERFACE "${PROJ_LIBRARY}")
+        endif()
     endif()
 else()
     find_library(PROJ_LIBRARY NAMES proj PATHS ${PROJ_LIBRARY_DIR})
@@ -50,7 +52,11 @@ else()
 
     set(PROJ_INCLUDE_DIR ${PROJ_INCLUDE_DIR} CACHE FILEPATH "PROJ header files")
     message(STATUS "Looking for PROJ include files in: ${PROJ_INCLUDE_DIR}")
-    include_directories(${PROJ_INCLUDE_DIR})
+    if(NOT TARGET proj::proj)
+        add_library(proj::proj INTERFACE IMPORTED)
+        target_include_directories(proj::proj INTERFACE "${PROJ_INCLUDE_DIR}")
+        target_link_libraries(proj::proj INTERFACE ${PROJ_LIBRARIES})
+    endif()
 endif()
 
 list(PREPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR})

cmake/FindUSD.cmake

@@ -64,7 +64,6 @@ set(USD_LIBRARIES
 find_library(USD_LIBRARY NAMES ${USD_LIBRARIES} PATHS ${USD_LIBRARY_DIR})
 if(USD_LIBRARY)
     message(STATUS "USD libraries ${USD_LIBRARIES} found in: ${USD_LIBRARY_DIR}")
-    link_directories(${USD_LIBRARY_DIR})
 else()
     message(FATAL_ERROR "Unable to find USD libraries in: ${USD_LIBRARY_DIR}")
 endif()
@@ -82,5 +81,3 @@ if(MSVC)
 endif()
 
 target_compile_definitions(pxr::USD INTERFACE PXR_STATIC WITH_USD)
-
-set(SWIG_DEFINES ${SWIG_DEFINES} -DWITH_USD)

cmake/utilities.cmake

@@ -41,6 +41,108 @@ macro(SET_INSTALL_RPATHS _target _paths)
     set_target_properties(${_target} PROPERTIES INSTALL_RPATH "${${_target}_rpaths}")
 endmacro()
 
+function(ifcopenshell_plugin_target TARGET)
+    set_target_properties(${TARGET} PROPERTIES PREFIX "")
+endfunction()
+
+function(ifcopenshell_wasm_plugin_link_options TARGET REGISTRATION_SYMBOL)
+    ifcopenshell_plugin_target(${TARGET})
+
+    if(NOT WASM_BUILD)
+        return()
+    endif()
+
+    cmake_parse_arguments(PLUGIN "" "OPTIMIZATION" "" ${ARGN})
+    if(NOT PLUGIN_OPTIMIZATION)
+        set(PLUGIN_OPTIMIZATION -O1)
+    endif()
+
+    set(plugin_symbols
+        ifcopenshell_plugin_abi_v1
+        ifcopenshell_plugin_metadata_v1
+        ${REGISTRATION_SYMBOL}
+    )
+
+    target_link_options(${TARGET} PRIVATE "SHELL:-s SIDE_MODULE=2" ${PLUGIN_OPTIMIZATION})
+    foreach(symbol IN LISTS plugin_symbols)
+        target_link_options(${TARGET} PRIVATE "LINKER:--export=${symbol}")
+    endforeach()
+endfunction()
+
+function(ifcopenshell_deploy_qt_runtime TARGET)
+    if(NOT IFCOPENSHELL_DEPLOY_QT_RUNTIME)
+        return()
+    endif()
+
+    if(NOT TARGET ${TARGET})
+        message(FATAL_ERROR "Cannot deploy Qt runtime for unknown target '${TARGET}'.")
+    endif()
+
+    get_target_property(target_type ${TARGET} TYPE)
+    if(NOT target_type STREQUAL "EXECUTABLE")
+        message(FATAL_ERROR "Qt runtime deployment target '${TARGET}' is not an executable.")
+    endif()
+
+    if(NOT DEFINED QT_DEFAULT_MAJOR_VERSION)
+        if(DEFINED QT_VERSION)
+            set(QT_DEFAULT_MAJOR_VERSION ${QT_VERSION})
+        else()
+            set(QT_DEFAULT_MAJOR_VERSION 6)
+        endif()
+    endif()
+
+    if(NOT TARGET Qt${QT_DEFAULT_MAJOR_VERSION}::Core)
+        set(qt_find_args Qt${QT_DEFAULT_MAJOR_VERSION} COMPONENTS Core REQUIRED)
+        if(DEFINED QT_DIR AND NOT QT_DIR STREQUAL "")
+            list(APPEND qt_find_args PATHS ${QT_DIR})
+        endif()
+        find_package(${qt_find_args})
+    endif()
+
+    if(COMMAND _qt_internal_setup_deploy_support)
+        if(NOT DEFINED QT_CMAKE_EXPORT_NAMESPACE AND TARGET Qt${QT_DEFAULT_MAJOR_VERSION}::Core)
+            set(QT_CMAKE_EXPORT_NAMESPACE Qt${QT_DEFAULT_MAJOR_VERSION})
+        endif()
+
+        if(QT_DEFAULT_MAJOR_VERSION EQUAL 6 AND TARGET Qt6::Core)
+            get_target_property(qt_core_type Qt6::Core TYPE)
+            if(qt_core_type STREQUAL "SHARED_LIBRARY")
+                set(QT6_IS_SHARED_LIBS_BUILD ON)
+            else()
+                set(QT6_IS_SHARED_LIBS_BUILD OFF)
+            endif()
+        endif()
+
+        _qt_internal_setup_deploy_support()
+    endif()
+
+    set(deploy_args
+        TARGET ${TARGET}
+        OUTPUT_SCRIPT deploy_script
+        NO_UNSUPPORTED_PLATFORM_ERROR
+    )
+
+    if(NOT IFCOPENSHELL_DEPLOY_QT_TRANSLATIONS)
+        list(APPEND deploy_args NO_TRANSLATIONS)
+    endif()
+
+    list(APPEND deploy_args ${ARGN})
+
+    if(COMMAND qt_generate_deploy_app_script)
+        qt_generate_deploy_app_script(${deploy_args})
+    elseif(COMMAND qt6_generate_deploy_app_script)
+        qt6_generate_deploy_app_script(${deploy_args})
+    else()
+        message(WARNING
+            "Qt runtime deployment requested for '${TARGET}', but this Qt version "
+            "does not provide qt_generate_deploy_app_script()."
+        )
+        return()
+    endif()
+
+    install(SCRIPT ${deploy_script})
+endfunction()
+
 # Get a list of all OPTION flags from the CMakeLists.txt and store in an output LIST
 function(get_all_option_flags output_list)
     # Read the contents of the CMakeLists.txt

conda/build.bat

@@ -22,9 +22,6 @@ cmake -G "Ninja" ^
  -D GMP_LIBRARY_DIR:FILEPATH="%LIBRARY_PREFIX%\lib" ^
  -D MPFR_LIBRARY_DIR:FILEPATH="%LIBRARY_PREFIX%\lib" ^
  -D COLLADA_SUPPORT=OFF ^
- -D HDF5_SUPPORT=ON ^
- -D HDF5_INCLUDE_DIR="%LIBRARY_PREFIX%\include" ^
- -D HDF5_LIBRARY_DIR="%LIBRARY_PREFIX%\lib" ^
  -D JSON_INCLUDE_DIR="%LIBRARY_PREFIX%\include" ^
  -D PYTHON_INCLUDE_DIR=%PREFIX%\include ^
  -D PYTHON_EXECUTABLE:FILEPATH=%PREFIX%\python.exe ^
@@ -37,7 +34,6 @@ cmake -G "Ninja" ^
  -D GLTF_SUPPORT:BOOL=ON ^
  -D BUILD_CONVERT:BOOL=ON ^
  -D BUILD_IFCMAX:BOOL=OFF ^
- -D IFCXML_SUPPORT:BOOL=ON ^
  -D Boost_LIBRARY_DIR:FILEPATH="%LIBRARY_PREFIX%\lib" ^
  -D Boost_INCLUDE_DIR:FILEPATH="%LIBRARY_PREFIX%\include" ^
  -D Boost_USE_STATIC_LIBS:BOOL=OFF ^

conda/build.sh

@@ -24,9 +24,6 @@ cmake ${CMAKE_ARGS} -G Ninja \
  -DMPFR_LIBRARY_DIR=$PREFIX/lib \
  -DOCC_INCLUDE_DIR=$PREFIX/include/opencascade \
  -DOCC_LIBRARY_DIR=$PREFIX/lib \
- -DHDF5_SUPPORT:BOOL=ON \
- -DHDF5_INCLUDE_DIR=$PREFIX/include \
- -DHDF5_LIBRARY_DIR=$PREFIX/lib \
  -DJSON_INCLUDE_DIR=$PREFIX/include \
  -DCGAL_INCLUDE_DIR=$PREFIX/include \
  -DLIBXML2_INCLUDE_DIR=$PREFIX/include/libxml2 \
@@ -34,7 +31,6 @@ cmake ${CMAKE_ARGS} -G Ninja \
  -DEIGEN_DIR:FILEPATH=$PREFIX/include/eigen3 \
  -DCOLLADA_SUPPORT:BOOL=OFF \
  -DBUILD_EXAMPLES:BOOL=OFF \
- -DIFCXML_SUPPORT:BOOL=ON \
  -DGLTF_SUPPORT:BOOL=ON \
  -DBUILD_CONVERT:BOOL=ON \
  -DBUILD_IFCPYTHON:BOOL=ON \
@@ -47,4 +43,4 @@ ninja
 
 ninja install -j 1
 
-python "${RECIPE_DIR}/update_version_init.py" "${PKG_VERSION}" "${SP_DIR}/ifcopenshell/__init__.py"
+python "${RECIPE_DIR}/update_version_init.py" "${PKG_VERSION}" "${SP_DIR}/ifcopenshell/__init__.py"

conda/conda_build_config.yaml

@@ -26,8 +26,6 @@ c_stdlib_version:
   - 2.17    # [linux]
   - 10.13   # [osx and x86_64]
   - 11.0    # [osx and arm64]
-hdf5:
-- 1.14.6
 libboost_devel:
 - '1.86'
 libxml2:

conda/recipe.yaml

@@ -33,7 +33,6 @@ requirements:
     - occt
     - libxml2
     - cgal-cpp
-    - hdf5
     - eigen
     - mpfr
     - nlohmann_json

findings.md

@@ -0,0 +1,317 @@
+# Build fix: remove `boost_system` from CMake components
+
+`Boost.System` became header-only in Boost 1.69. Boost 1.90.0 no longer ships a compiled library or CMake config for it, so `find_package(Boost REQUIRED COMPONENTS system ...)` fails.
+
+## Fix
+
+`cmake/CMakeLists.txt`:
+
+```diff
+-    set(BOOST_COMPONENTS system program_options regex thread date_time iostreams)
++    set(BOOST_COMPONENTS program_options regex thread date_time iostreams)
+```
+
+The headers are still available; no linking is needed.
+
+# Build fix: add `template` keyword for dependent template member calls
+
+Calling a template member function through a dependent expression (e.g. `storage->has_attribute_value<T>(...)` where `storage`'s type depends on a template parameter) requires the `template` keyword to disambiguate from a less-than comparison.
+
+## Error
+
+```
+src/ifcparse/IfcParse.cpp:1856:67: error: expected primary-expression before '>' token
+ 1856 |                     if (storage->has_attribute_value<express::Base>(attr_index)) {
+      |                                                                   ^
+```
+
+Six identical errors at lines 1856, 1865, 1896, 1905, 1934, 1943.
+
+## Fix
+
+`src/ifcparse/IfcParse.cpp`:
+
+```diff
+-storage->has_attribute_value<express::Base>(attr_index)
++storage->template has_attribute_value<express::Base>(attr_index)
+
+-storage->has_attribute_value<Blank>(attr_index)
++storage->template has_attribute_value<Blank>(attr_index)
+```
+
+Applied at all six call sites in `in_memory_file_storage::read_from_stream`.
+
+# Linker fix: missing explicit template instantiations for `InstanceStreamer`
+
+`InstanceStreamer` is a class template with methods defined in `IfcParse.cpp`, not the header. Without explicit instantiations, the linker can't find the symbols when the SWIG wrapper loads.
+
+## Error
+
+```
+ImportError: undefined symbol: _ZN8IfcParse16InstanceStreamerINS_10FileReaderINS_14FullBufferImplEEEEC1EPS3_PNS_7IfcFileE
+  (IfcParse::InstanceStreamer<FileReader<FullBufferImpl>>::InstanceStreamer(FileReader<FullBufferImpl>*, IfcFile*))
+```
+
+## Fix
+
+Cannot use `template class InstanceStreamer<...>` because some constructors have `static_assert` guards that reject certain reader types. Instead, instantiate each member function individually per reader type, only including the constructors valid for that type.
+
+`src/ifcparse/IfcParse.cpp` (after the last `InstanceStreamer` method definition):
+
+```cpp
+// FullBufferImpl
+template IfcParse::InstanceStreamer<FileReader<FullBufferImpl>>::InstanceStreamer(IfcParse::IfcFile*);
+template IfcParse::InstanceStreamer<FileReader<FullBufferImpl>>::InstanceStreamer(const std::string&, bool, IfcParse::IfcFile*);
+template IfcParse::InstanceStreamer<FileReader<FullBufferImpl>>::InstanceStreamer(void*, int, IfcParse::IfcFile*);
+template IfcParse::InstanceStreamer<FileReader<FullBufferImpl>>::InstanceStreamer(FileReader<FullBufferImpl>*, IfcParse::IfcFile*);
+// ... plus ensure_header, initialize_header, hasSemicolon, semicolonCount,
+//     pushPage, bypassTypes, readInstance
+
+// PushedSequentialImpl — same pattern, different valid constructors
+
+// MMapFileReader (ifdef USE_MMAP) — same pattern
+```
+
+# Linker fix: `FullBufferImpl` missing buffer constructor
+
+SWIG's `stream_from_string` calls `InstanceStreamer<FileReader<FullBufferImpl>>(void*, int, IfcFile*)`, but the `(void*, int)` constructor previously hit a `static_assert` for `FullBufferImpl` — it only allowed `PushedSequentialImpl`.
+
+## Error
+
+```
+ImportError: undefined symbol: _ZN8IfcParse16InstanceStreamerINS_10FileReaderINS_14FullBufferImplEEEEC1EPviPNS_7IfcFileE
+  (InstanceStreamer<FileReader<FullBufferImpl>>::InstanceStreamer(void*, int, IfcFile*))
+```
+
+## Fix
+
+Three changes to make `FullBufferImpl` support buffer-based and default construction:
+
+`src/ifcparse/FileReader.h` — add buffer constructor to `FullBufferImpl`:
+
+```diff
+ class IFC_PARSE_API FullBufferImpl {
+ public:
+     explicit FullBufferImpl(const std::string& fn);
++    FullBufferImpl(void* data, size_t length);
+```
+
+`src/ifcparse/FileReader.h` — add `FileReader(void*, size_t)` forwarding constructor:
+
+```diff
++    FileReader(void* data, size_t length)
++        : cursor_(0) {
++        if constexpr (std::is_same_v<Impl, FullBufferImpl>) {
++            impl_ = std::make_shared<Impl>(data, length);
++        } else {
++            static_assert(...);
++        }
++    }
+```
+
+`src/ifcparse/FileReader.cpp` — implement the constructor:
+
+```cpp
+FullBufferImpl::FullBufferImpl(void* data, size_t length)
+    : buf_(static_cast<char*>(data), static_cast<char*>(data) + length)
+    , size_(length) {
+}
+```
+
+`src/ifcparse/IfcParse.cpp` — extend the two `InstanceStreamer` constructors to accept `FullBufferImpl`:
+
+```diff
+ // InstanceStreamer(IfcFile*):
++    } else if constexpr (std::is_same_v<Reader, FileReader<FullBufferImpl>>) {
++        owned_stream_ = std::make_unique<Reader>(nullptr, (size_t)0);
+
+ // InstanceStreamer(void*, int, IfcFile*):
++    } else if constexpr (std::is_same_v<Reader, FileReader<FullBufferImpl>>) {
++        owned_stream_ = std::make_unique<Reader>(data, (size_t)length);
+```
+
+# Runtime fix: segfault in `parse_context::push()` due to vector reallocation
+
+`parse_context_pool` stores nodes in a `std::vector<parse_context>`. During parsing, `load()` takes a `parse_context&` parameter and calls `context.push()`, which calls `pool_->make()`. If the pool's vector reallocates (via `emplace_back`), all existing references into the vector — including the `context` reference held by the caller — become dangling. Subsequent access through the dangling reference causes a segfault.
+
+Triggered by larger IFC files (e.g. `ISSUE_159_kleine_Wohnung_R22.ifc`, 9.5 MB) that cause enough pool growth to trigger reallocation.
+
+## Error
+
+```
+Thread 1 received signal SIGSEGV, Segmentation fault.
+0x... in IfcParse::parse_context::push()
+  #1  in_memory_file_storage::load(...)   // context& is dangling after reallocation
+  #2  in_memory_file_storage::load(...)   // parent call
+  #3  InstanceStreamer::readInstance()
+```
+
+## Fix
+
+`src/ifcparse/storage.h` — change the pool container from `std::vector` to `std::deque`, which does not invalidate references on `push_back`/`emplace_back`:
+
+```diff
++#include <deque>
+
+ struct parse_context_pool {
+-    std::vector<parse_context> nodes_;
++    std::deque<parse_context> nodes_;
+```
+
+# Runtime fix: `express::Base` comparison operators throw on null/expired instances
+
+`express::Base::operator<` and `operator==` called `data()`, which throws `std::runtime_error("Trying to access deleted instance reference")` when the internal `weak_ptr` is expired. A default-constructed `express::Base` (the value-type equivalent of a null pointer) always has an expired `weak_ptr`.
+
+## Why this model triggers it
+
+The bug requires two conditions to coincide:
+
+1. A representation is shared by **more than one product** (via `IfcRepresentationMap` / `IfcMappedItem`).
+2. At least one of those products has **no material association**, so `get_single_material_association()` returns `express::Base{}` (the null equivalent).
+
+In `advanced_model.ifc`, Body representations like `#449` (Body/Brep) have a single `IfcRepresentationMap` (`#453`) with 13 `IfcMappedItem` usages, meaning 13 products share the geometry. Some of those products (e.g. `IfcFlowTerminal` instances) have no `IfcRelAssociatesMaterial`, so `get_single_material_association` returns `express::Base{}`.
+
+Smaller or simpler models don't hit this because either:
+- Every representation maps to only 1 product → `reuse_ok_` short-circuits at `products.size() == 1` before reaching the material check.
+- Every product has a material association → no null `express::Base` is ever inserted into the set.
+
+## Exact call sequence
+
+```
+Iterator::initialize()
+  try {
+    mapping::get_representations(reps, filters_)
+      addRepresentationsFromDefaultContexts(representations)
+        → collects reps from subcontexts in order:
+          Axis (#115): 143 reps
+          Body (#117): 7550 reps
+          FootPrint (#119): 12 reps
+
+      for (auto representation : representations):
+
+        ── Axis reps (indices 0–142) ──────────────────────────
+        products_represented_by(rep, rmap)
+          → OfProductRepresentation: 1 product each
+        filter_products(products, filters)   → 1 product
+        reuse_ok_(ifcproducts)
+          → products.size() == 1 → return true  ← SHORT-CIRCUIT, no material check
+        representation_mapped_to(rep)        → null (no MappedItem)
+        → task created.  143 tasks accumulated.
+
+        ── First Body rep #449 (Body/Brep) ────────────────────
+        products_represented_by(#449, rmap)
+          → OfProductRepresentation: empty
+          → RepresentationMap: 1 map (#453)
+          → MapUsage: 13 MappedItems → traces through to 13 IfcProducts
+        filter_products(products, filters)   → 13 products
+        reuse_ok_(ifcproducts)               ← CRASH HERE
+          → products.size() == 1?  NO (13 products)
+          → for each product:
+              find_openings(product)          → OK
+              get_single_material_association(product)
+                → some products have no IfcRelAssociatesMaterial
+                → returns express::Base{}     (expired weak_ptr)
+              associated_single_materials.insert(result)
+                → std::set::insert calls operator<
+                → operator< calls data()
+                → data() calls data_.lock() → expired → THROWS
+                  "Trying to access deleted instance reference"
+
+  } catch (const std::exception& e) {
+    Logger::Error(e)       ← exception caught here, get_representations aborted
+  }
+
+  → reps contains only the 143 Axis tasks created before the throw
+  → all 143 Axis reps have Curve2D geometry → map(representation) returns null
+  → no valid elements produced → initialize() returns false
+```
+
+In the old pointer-based code, `reuse_ok_` used `std::set<const IfcUtil::IfcBaseEntity*>` and `get_single_material_association` returned `nullptr`. Inserting `nullptr` into a `std::set<T*>` is a plain pointer comparison — no dereference, no throw. The refactoring to `std::set<express::Base>` changed the comparison from pointer comparison to `express::Base::operator<`, which unconditionally dereferences through `data()`.
+
+## Error
+
+```
+[Error] Trying to access deleted instance reference
+[Notice] Created 143 tasks for 143 products    ← only Axis reps; all Body reps lost
+initialize() returned: False
+```
+
+## Fix
+
+`src/ifcparse/express.h` — use `weak_ptr::lock().get()` instead of `data()` so that expired pointers compare as `nullptr` (matching old raw-pointer semantics):
+
+```diff
+     bool operator<(const Base& other) const {
+-        return data() < other.data();
++        auto a = data_.lock();
++        auto b = other.data_.lock();
++        return a.get() < b.get();
+     }
+
+     bool operator==(const Base& other) const {
+-        return data() == other.data();
++        auto a = data_.lock();
++        auto b = other.data_.lock();
++        return a.get() == b.get();
+     }
+```
+
+# Runtime fix: `entity_instance` missing `get_inverse` due to SWIG `%rename` collision
+
+Accessing inverse attributes (e.g. `element.IsDecomposedBy`) on any entity raises `AttributeError: entity instance of type 'IFC2X3.IfcProject' has no attribute 'get_inverse'`.
+
+## Why
+
+`entity_instance_mixin.__getattr__` (line 106 of `entity_instance.py`) calls `self.get_inverse(name)` when it detects an inverse attribute. Since the mixin inherits into the SWIG-generated `entity_instance` class (via the `object = custom_base` hack in `IfcParseWrapper.i:936`), `self.get_inverse` must resolve to a method on the SWIG class.
+
+However, `IfcParseWrapper.i:70` has a global rename:
+
+```
+%rename("get_inverses_by_declaration") get_inverse;
+```
+
+This was intended for `ifcopenshell::file::get_inverse` (which takes an entity + declaration and returns instances by reference), but SWIG `%rename` is global — it also renames the `%extend express::Base` method `get_inverse(const std::string& a)` at line 551. So the Python-side `entity_instance` class exposes the method as `get_inverses_by_declaration`, not `get_inverse`.
+
+The old code (`v0.8.0`) didn't hit this because `__getattr__` called `self.wrapped_data.get_inverse(name)` on an inner `ifcopenshell_wrapper.entity_instance` object — but in that old layout, the inner object was constructed differently and the rename didn't apply the same way (or the method had a different path). In the new mixin approach, `self` **is** the SWIG object, so the rename is directly visible.
+
+## Fix
+
+`src/ifcwrap/IfcParseWrapper.i` — override the global rename specifically for `express::Base::get_inverse`, restoring the original name on entity instances:
+
+```diff
++%rename("get_inverse") express::Base::get_inverse;
+ %rename("get_inverses_by_declaration") get_inverse;
+```
+
+Add this line **before** the global rename (or anywhere before the `%extend express::Base` block). This scoped rename takes precedence for `express::Base`, so:
+- `entity_instance.get_inverse(name)` works as the mixin expects
+- `file.get_inverses_by_declaration(...)` keeps its intended name
+
+## Python-side workaround
+
+`entity_instance.py:106` — call the method by its SWIG-renamed name:
+
+```diff
+-            vs = self.get_inverse(name)
++            vs = self.get_inverses_by_declaration(name)
+```
+
+# Runtime fix: `entity_instance` class no longer importable from `entity_instance` module
+
+The class rename from `entity_instance` to `entity_instance_mixin` broke external code that does `from ifcopenshell.entity_instance import entity_instance`.
+
+## Error
+
+```
+ImportError: cannot import name 'entity_instance' from 'ifcopenshell.entity_instance'
+```
+
+Triggered at import time via `ifcopenshell.util.pset` (and likely other modules).
+
+## Fix
+
+`src/ifcopenshell-python/ifcopenshell/entity_instance.py` — add a backwards-compatible alias at the bottom of the module:
+
+```python
+entity_instance = entity_instance_mixin
+```

nix/build-all.py

@@ -1,6 +1,4 @@
 #!/usr/bin/python
-# /// script
-# ///
 ###############################################################################
 #                                                                             #
 # This file is part of IfcOpenShell.                                          #
@@ -109,7 +107,6 @@ import logging
 import multiprocessing
 import os
 import platform
-import re
 import shutil
 
 # @todo temporary for expired mpfr.org certificate on 2023-04-08
@@ -126,9 +123,16 @@ ssl._create_default_https_context = ssl._create_unverified_context
 import time
 from collections.abc import Generator, Sequence
 from pathlib import Path
-from typing import Literal, Union
 from urllib.request import urlretrieve
 
+try:
+    from typing import Literal, Union
+except:
+    # python 3.6 compatibility for rocky 8
+    from typing import Union
+
+    from typing_extensions import Literal
+
 logger = logging.getLogger(__name__)
 logger.setLevel(logging.INFO)
 ch = logging.StreamHandler()
@@ -137,6 +141,7 @@ logger.addHandler(ch)
 PROJECT_NAME = "IfcOpenShell"
 USE_CURRENT_PYTHON_VERSION = os.getenv("USE_CURRENT_PYTHON_VERSION")
 ADD_COMMIT_SHA = os.getenv("ADD_COMMIT_SHA")
+BUILD_BONSAIVIEWER = os.getenv("BUILD_BONSAIVIEWER", "").lower() in {"1", "on", "true", "yes"}
 
 PYTHON_VERSIONS = ["3.10.3", "3.11.8", "3.12.1", "3.13.6", "3.14.0"]
 JSON_VERSION = "3.11.3"
@@ -148,7 +153,6 @@ PCRE_VERSION = "8.41"
 LIBXML2_VERSION = "2.13.8"
 SWIG_VERSION = "4.2.1"
 OPENCOLLADA_VERSION = "v1.6.68"
-HDF5_VERSION = "1.13.1"
 
 GMP_VERSION = "6.3.0"
 MPFR_VERSION = "3.1.6"  # latest is 4.1.0
@@ -157,6 +161,9 @@ USD_VERSION = "23.05"
 TBB_VERSION = "2021.9.0"
 ROCKSDB_VERSION = "9.11.2"
 ZSTD_VERSION = "1.5.7"
+MANIFOLD_VERSION = "3.2.1"
+QT6_VERSION = os.getenv("QT6_VERSION", "6.8.3")
+
 # binaries
 cp = "cp"
 bash = "bash"
@@ -324,12 +331,13 @@ cecho(""" - IFC Schemas to compile. If not provided, fallback to default provide
 """)
 
 dependency_tree: "dict[str, tuple[str, ...]]" = {
-    "IfcParse": ("boost", "libxml2", "hdf5", "rocksdb"),
-    "IfcGeom": ("IfcParse", "occ", "json", "cgal", "eigen", "OpenCOLLADA"),
+    "IfcParse": ("boost", "libxml2", "rocksdb"),
+    "IfcGeom": ("IfcParse", "occ", "manifold", "json", "cgal", "eigen", "OpenCOLLADA"),
     "IfcConvert": ("IfcGeom",),
     "OpenCOLLADA": ("libxml2", "pcre"),
     "IfcGeomServer": ("IfcGeom",),
     "IfcOpenShell-Python": ("python", "swig", "IfcGeom"),
+    "BonsaiViewer": ("IfcGeom", "qt6"),
     "swig": (),
     "boost": (),
     "libxml2": (),
@@ -337,11 +345,12 @@ dependency_tree: "dict[str, tuple[str, ...]]" = {
     "occ": (),
     "pcre": (),
     "json": (),
-    "hdf5": (),
     "cgal": (),
     "eigen": (),
     "rocksdb": ("zstd",),
     "zstd": (),
+    "manifold": (),
+    "qt6": (),
     # 'usd': ('boost', 'oneTBB')
 }
 
@@ -395,9 +404,12 @@ else:
     targets = set(dependency_tree.keys())
 
 targets = set(t for t in targets if "without-%s" % t.lower() not in flags)
+if not explicit_targets and not BUILD_BONSAIVIEWER:
+    targets.difference_update({"BonsaiViewer", "qt6"})
+if BUILD_BONSAIVIEWER:
+    targets.update(gather_dependencies("BonsaiViewer"))
 if WASM:
     SKIP_TARGETS_FOR_WASM = {
-        "hdf5",
         "rocksdb",
         "opencollada",
         "swig",
@@ -405,6 +417,8 @@ if WASM:
         "IfcGeom",
         "IfcConvert",
         "IfcGeomServer",
+        "BonsaiViewer",
+        "qt6",
     }
     SKIP_TARGETS_FOR_WASM = {t.lower() for t in SKIP_TARGETS_FOR_WASM}
     skip_targets = {t for t in targets if t.lower() in SKIP_TARGETS_FOR_WASM}
@@ -578,6 +592,11 @@ def run_cmake(arg1, cmake_args: "list[str]", cmake_dir: Union[str, None] = None,
             ]
         )
 
+    if not any("BUILD_SHARED_LIBS" in f for f in cmake_args):
+        cmake_flags.append(
+            f"-DBUILD_SHARED_LIBS={OFF_ON[not BUILD_STATIC]}",
+        )
+
     run(
         [
             *wasm,
@@ -586,7 +605,6 @@ def run_cmake(arg1, cmake_args: "list[str]", cmake_dir: Union[str, None] = None,
             *cmake_flags,
             *cmake_args,
             f"-DCMAKE_BUILD_TYPE={BUILD_CFG}",
-            f"-DBUILD_SHARED_LIBS={OFF_ON[not BUILD_STATIC]}",
             f"-DCMAKE_SHARED_LINKER_FLAGS={os.environ['LDFLAGS']}",
         ],
         cwd=cwd,
@@ -621,7 +639,6 @@ def build_dependency(
     mode: Literal[
         "cmake",
         "autoconf",
-        "ctest",
         "bjam",
     ],
     build_tool_args: "list[str]",
@@ -728,23 +745,7 @@ def build_dependency(
     if shell is not None:
         sp.run(shell, shell=True, check=True, cwd=extract_dir)
 
-    if mode == "ctest":
-        try:
-            run(
-                ["ctest", "-S", "HDF5config.cmake,BUILD_GENERATOR=Unix", "-C", BUILD_CFG, "-V", "-O", "hdf5.log"],
-                cwd=extract_dir,
-            )
-        except Exception as e:
-            print("-" * 70)
-            print(open(os.path.join(extract_dir, "hdf5.log")))
-            print("-" * 70)
-            raise e
-        run([tar, "-xf", kwargs["ctest_result"] + ".tar.gz"], cwd=os.path.join(extract_dir, "build"))
-        shutil.copytree(
-            os.path.join(extract_dir, "build", kwargs["ctest_result"], kwargs["ctest_result_path"]),
-            os.path.join(DEPS_DIR, "install", name),
-        )
-    elif mode != "bjam":
+    if mode != "bjam":
         extract_build_dir = os.path.join(extract_dir, *([cmake_dir] if cmake_dir else []), "build")
         if os.path.exists(extract_build_dir):
             shutil.rmtree(extract_build_dir)
@@ -783,6 +784,61 @@ def build_dependency(
         shutil.rmtree(build_dir, ignore_errors=True)
 
 
+def get_qt6_aqt_config() -> "tuple[str, str, str]":
+    if platform.system() != "Linux":
+        raise ValueError("Automatic Qt6 installation with aqtinstall is only configured for Linux builds.")
+
+    machine = platform.machine().lower()
+    if machine in {"x86_64", "amd64"}:
+        return "linux", "linux_gcc_64", "gcc_64"
+    if machine in {"aarch64", "arm64"}:
+        return "linux_arm64", "linux_gcc_arm64", "gcc_arm64"
+
+    raise ValueError(f"Automatic Qt6 installation is not configured for architecture '{platform.machine()}'.")
+
+
+def install_qt6() -> str:
+    host, qt_arch, install_suffix = get_qt6_aqt_config()
+    qt_install_root = INSTALL_DIR / f"qt6-{QT6_VERSION}-{install_suffix}"
+    qt_dir = qt_install_root / QT6_VERSION / install_suffix
+    os.environ["QT_DIR"] = str(qt_dir)
+
+    qt_config = qt_dir / "lib" / "cmake" / "Qt6" / "Qt6Config.cmake"
+    qt_core = qt_dir / "lib" / "libQt6Core.so.6"
+    qt_svg = qt_dir / "lib" / "cmake" / "Qt6Svg" / "Qt6SvgConfig.cmake"
+    if qt_config.exists() and qt_core.exists() and qt_svg.exists():
+        logger.info(f"Found existing Qt6 at {qt_dir}, skipping")
+        return str(qt_dir)
+
+    os.makedirs(qt_install_root, exist_ok=True)
+    run(
+        [
+            sys.executable,
+            "-m",
+            "aqt",
+            "install-qt",
+            host,
+            "desktop",
+            QT6_VERSION,
+            qt_arch,
+            "-O",
+            str(qt_install_root),
+            # Keep the install lean by filtering archives: qtbase provides
+            # Core/Gui/Widgets (and the Qt6::CorePrivate target), qtsvg provides
+            # Qt6::Svg. Both are base-Qt archives, not add-on modules.
+            "--archives",
+            "icu",
+            "qtbase",
+            "qtsvg",
+        ]
+    )
+
+    if not (qt_config.exists() and qt_core.exists() and qt_svg.exists()):
+        raise RuntimeError(f"Qt6 installation did not produce a usable Qt at {qt_dir}.")
+
+    return str(qt_dir)
+
+
 cecho("Collecting dependencies:", GREEN)
 
 # Set compiler flags for 32bit builds on 64bit system
@@ -840,37 +896,6 @@ os.environ["LDFLAGS"] = LDFLAGS
 # @tfk: this is no longer needed
 # build_dependency(name="cmake-%s" % (CMAKE_VERSION,), mode="autoconf", build_tool_args=[], download_url="https://cmake.org/files/v%s" % (CMAKE_VERSION_2,), download_name="cmake-%s.tar.gz" % (CMAKE_VERSION,))
 
-if "hdf5" in targets:
-    # not supported
-    orig = [os.environ[f] for f in compiler_flags]
-    for f in compiler_flags:
-        os.environ[f] = re.sub(r"-flto(=\w+)?", "", os.environ[f])
-
-    HDF5_UNDERSCORE = "_".join(HDF5_VERSION.split("."))
-    HDF5_MAJOR = ".".join(HDF5_VERSION.split(".")[:-1])
-    dependency_name = f"hdf5-{HDF5_VERSION}"
-    build_dependency(
-        name=dependency_name,
-        mode="cmake",
-        build_tool_args=[
-            f"-DCMAKE_INSTALL_PREFIX={DEPS_DIR}/install/{dependency_name}",
-            "-DHDF5_ENABLE_Z_LIB_SUPPORT=OFF",
-            "-DBUILD_TESTING=OFF",
-            "-DHDF5_BUILD_TOOLS=OFF",
-            "-DHDF5_BUILD_EXAMPLES=OFF",
-            "-DBUILD_SHARED_LIBS=OFF",
-            "-DHDF5_BUILD_UTILS=OFF",
-            "-DHDF5_BUILD_CPP_LIB=ON",
-            *MAC_CROSS_COMPILE_INTEL_ARGS,
-        ],
-        download_url=f"https://github.com/HDFGroup/hdf5/archive/refs/tags/",
-        download_name=f"hdf5-{HDF5_UNDERSCORE}.tar.gz",
-    )
-
-    for f, o in zip(compiler_flags, orig):
-        os.environ[f] = o
-
-
 if "json" in targets:
     dependency_name = f"json-{JSON_VERSION}"
     build_dependency(
@@ -989,6 +1014,33 @@ elif "occ" in targets:
         download_name=f"OCE-{OCE_VERSION}.tar.gz",
     )
 
+if "manifold" in targets:
+    dependency_name = f"manifold-{MANIFOLD_VERSION}"
+    patches = []
+    if WASM:
+        patches.append("./patches/manifold/install-metadata-for-emscripten.patch")
+    build_dependency(
+        name=dependency_name,
+        mode="cmake",
+        build_tool_args=[
+            f"-DCMAKE_INSTALL_PREFIX={DEPS_DIR}/install/{dependency_name}",
+            "-DMANIFOLD_PAR=OFF",
+            "-DMANIFOLD_CROSS_SECTION=OFF",
+            "-DMANIFOLD_PYBIND=OFF",
+            "-DMANIFOLD_JSBIND=OFF",
+            "-DMANIFOLD_CBIND=OFF",
+            "-DMANIFOLD_TEST=OFF",
+            "-DMANIFOLD_EXPORT=OFF",
+            "-DMANIFOLD_DOWNLOADS=OFF",
+            *MAC_CROSS_COMPILE_INTEL_ARGS,
+        ],
+        download_url="https://github.com/elalish/manifold.git",
+        download_name="manifold",
+        download_tool=download_tool_git,
+        revision=f"v{MANIFOLD_VERSION}",
+        patch=patches,
+    )
+
 if "libxml2" in targets:
     OLD_CC = ""
     if MAC_CROSS_COMPILE_INTEL:
@@ -1292,6 +1344,9 @@ if "rocksdb" in targets:
         revision=f"v{ROCKSDB_VERSION}",
     )
 
+if "qt6" in targets:
+    install_qt6()
+
 cecho("Building IfcOpenShell:", GREEN)
 
 IFCOS_DIR = os.path.join(DEPS_DIR, "build", "ifcopenshell")
@@ -1299,8 +1354,8 @@ if os.environ.get("NO_CLEAN", "").lower() not in {"1", "on", "true"}:
     if os.path.exists(IFCOS_DIR):
         shutil.rmtree(IFCOS_DIR)
 os.makedirs(IFCOS_DIR, exist_ok=True)
-executables_dir = os.path.join(IFCOS_DIR, "executables")
-os.makedirs(executables_dir, exist_ok=True)
+ifcos_build_dir = os.path.join(IFCOS_DIR, "build")
+os.makedirs(ifcos_build_dir, exist_ok=True)
 
 
 cmake_args = [
@@ -1309,6 +1364,7 @@ cmake_args = [
     "-DBUILD_SHARED_LIBS=" + OFF_ON[not BUILD_STATIC],
     "-DGLTF_SUPPORT=ON",
     "-DBoost_NO_BOOST_CMAKE=On",
+    "-DCREATE_BUNDLE=On",
     "-DADD_COMMIT_SHA=" + ("On" if ADD_COMMIT_SHA else "Off"),
     "-DVERSION_OVERRIDE=" + ("On" if ADD_COMMIT_SHA else "Off"),
     *MAC_CROSS_COMPILE_INTEL_ARGS,
@@ -1358,6 +1414,10 @@ elif "occ" in targets:
     occ_library_dir = f"{DEPS_DIR}/install/oce-{OCE_VERSION}/lib"
     cmake_args.extend(["-DOCC_INCLUDE_DIR=" + occ_include_dir, "-DOCC_LIBRARY_DIR=" + occ_library_dir])
 
+if "manifold" in targets:
+     cmake_args_prefix_path.append(f"{DEPS_DIR}/install/manifold-{MANIFOLD_VERSION}")
+     cmake_args.append("-DWITH_MANIFOLD=On")
+
 if "OpenCOLLADA" in targets:
     # pcre is a dependency of OpenCOLLADA, but since we `find_package`,
     # we don't need to add it explicitly here as cmake will find it from the config.
@@ -1372,11 +1432,6 @@ else:
 if "libxml2" in targets:
     cmake_args_prefix_path.append(f"{DEPS_DIR}/install/libxml2-{LIBXML2_VERSION}")
 
-if "hdf5" in targets:
-    cmake_args_prefix_path.append(f"{DEPS_DIR}/install/hdf5-{HDF5_VERSION}")
-else:
-    cmake_args.append("-DHDF5_SUPPORT=Off")
-
 if "usd" in targets:
     cmake_args.append("-DUSD_SUPPORT=ON")
     cmake_args_prefix_path.extend(
@@ -1403,40 +1458,44 @@ if "rocksdb" in targets:
 if "swig" in targets:
     cmake_args_prefix_path.append(f"{DEPS_DIR}/install/swig-{SWIG_VERSION}")
 
-if not WASM and (not explicit_targets or {"IfcGeom", "IfcConvert", "IfcGeomServer"} & set(explicit_targets)):
+if os.environ.get("QT_DIR"):
+    cmake_args_prefix_path.append(os.environ["QT_DIR"])
+    cmake_args.append(f"-DQT_DIR={os.environ['QT_DIR']}")
+
+build_bonsaiviewer = BUILD_BONSAIVIEWER or "BonsaiViewer" in targets
+
+ifcos_build_args = [
+    f"-DBUILD_IFCGEOM={OFF_ON['IfcGeom' in targets]}",
+    f"-DBUILD_GEOMSERVER={OFF_ON['IfcGeomServer' in targets]}",
+    f"-DBUILD_CONVERT={OFF_ON['IfcConvert' in targets]}",
+    f"-DBUILD_BONSAIVIEWER={OFF_ON[build_bonsaiviewer]}",
+    f"-DCMAKE_INSTALL_PREFIX={DEPS_DIR}/install/ifcopenshell",
+]
+
+if not WASM and (
+    build_bonsaiviewer
+    or not explicit_targets
+    or {"IfcGeom", "IfcConvert", "IfcGeomServer", "BonsaiViewer"} & set(explicit_targets)
+):
     logger.info("\rConfiguring executables...")
 
     exec_args = [
-        f"-DBUILD_IFCGEOM={OFF_ON['IfcGeom' in targets]}",
-        f"-DBUILD_GEOMSERVER={OFF_ON['IfcGeomServer' in targets]}",
-        f"-DBUILD_CONVERT={OFF_ON['IfcConvert' in targets]}",
+        *ifcos_build_args,
         f"-DBUILD_IFCPYTHON=OFF",
-        f"-DCMAKE_INSTALL_PREFIX={DEPS_DIR}/install/ifcopenshell",
     ]
 
-    run_cmake("", exec_args + cmake_args + get_cmake_args_prefix_path(), cmake_dir=CMAKE_DIR, cwd=executables_dir)
+    run_cmake("", exec_args + cmake_args + get_cmake_args_prefix_path(), cmake_dir=CMAKE_DIR, cwd=ifcos_build_dir)
 
     logger.info("\rBuilding executables...   ")
 
-    run([make, f"-j{IFCOS_NUM_BUILD_PROCS}", "VERBOSE=1"], cwd=executables_dir)
-    run([make, "install/strip" if BUILD_CFG == "Release" else "install"], cwd=executables_dir)
+    run([make, f"-j{IFCOS_NUM_BUILD_PROCS}", "VERBOSE=1"], cwd=ifcos_build_dir)
+    run([make, "install/strip" if BUILD_CFG == "Release" else "install"], cwd=ifcos_build_dir)
 
 if "IfcOpenShell-Python" in targets:
-    # On OSX the actual Python library is not linked against.
-    ADDITIONAL_ARGS = ""
+    wrapper_ldflags = ""
     if platform.system() == "Darwin":
-        ADDITIONAL_ARGS = "-Wl,-undefined,dynamic_lookup"
-
-    # NOTE: We don't use `CXXFLAGS` for wrappers, so wrapper is compiled with different flags
-    # (e.g. ` -fdata-sections` is missing, which is set by default for executables)
-    # So cache doesn't match and running build-all.py builds most of ifcopenshell libraries twice.
-    os.environ["CPPFLAGS"] = f"{CXXFLAGS_MINIMAL} {ADDITIONAL_ARGS}"
-    os.environ["CXXFLAGS"] = f"{CXXFLAGS_MINIMAL} {ADDITIONAL_ARGS}"
-    os.environ["CFLAGS"] = f"{CFLAGS_MINIMAL} {ADDITIONAL_ARGS}"
-    os.environ["LDFLAGS"] = f"{LDFLAGS} {ADDITIONAL_ARGS}"
-
-    python_dir = os.path.join(IFCOS_DIR, "pythonwrapper")
-    os.makedirs(python_dir, exist_ok=True)
+        # On OSX the actual Python library is not linked against.
+        wrapper_ldflags = "-Wl,-undefined,dynamic_lookup"
 
     def compile_python_wrapper(
         python_version: str,
@@ -1451,10 +1510,6 @@ if "IfcOpenShell-Python" in targets:
 
         logger.info(f"\rConfiguring python {python_version} wrapper...")
 
-        cache_path = os.path.join(python_dir, "CMakeCache.txt")
-        if os.path.exists(cache_path):
-            os.remove(cache_path)
-
         if python_path:
             # We couldn't just prefix PATH and have to provide all variables explicitly,
             # see ifcwrap/cmake for the details.
@@ -1468,27 +1523,38 @@ if "IfcOpenShell-Python" in targets:
             )
 
         assert python_include
-        run_cmake(
-            "",
-            cmake_args
-            + get_cmake_args_prefix_path()
-            + [
-                *([f"-DPYTHON_EXECUTABLE={python_executable}"] if python_executable else []),
-                # Needed because pyodide is expecting setup.py to be in the root.
-                *([f"-DPYTHON_MODULE_INSTALL_DIR={REPO_PATH}"] * WASM),
-                f"-DPYTHON_INCLUDE_DIR={python_include}",
-                f"-DCMAKE_INSTALL_PREFIX={DEPS_DIR}/install/ifcopenshell/tmp",
-                "-DUSERSPACE_PYTHON_PREFIX="
-                + ["Off", "On"][os.environ.get("PYTHON_USER_SITE", "").lower() in {"1", "on", "true"}],
-            ],
-            cmake_dir=CMAKE_DIR,
-            cwd=python_dir,
-        )
+        old_ldflags = os.environ["LDFLAGS"]
+        if wrapper_ldflags:
+            os.environ["LDFLAGS"] = f"{old_ldflags} {wrapper_ldflags}"
+
+        try:
+            run_cmake(
+                "",
+                ifcos_build_args
+                + [
+                    "-DBUILD_IFCPYTHON=ON",
+                ]
+                + cmake_args
+                + get_cmake_args_prefix_path()
+                + [
+                    *([f"-DPYTHON_EXECUTABLE={python_executable}"] if python_executable else []),
+                    # Needed because pyodide is expecting setup.py to be in the root.
+                    *([f"-DPYTHON_MODULE_INSTALL_DIR={REPO_PATH}"] * WASM),
+                    f"-DPYTHON_INCLUDE_DIR={python_include}",
+                    f"-DCMAKE_INSTALL_PREFIX={DEPS_DIR}/install/ifcopenshell/tmp",
+                    "-DUSERSPACE_PYTHON_PREFIX="
+                    + ["Off", "On"][os.environ.get("PYTHON_USER_SITE", "").lower() in {"1", "on", "true"}],
+                ],
+                cmake_dir=CMAKE_DIR,
+                cwd=ifcos_build_dir,
+            )
+        finally:
+            os.environ["LDFLAGS"] = old_ldflags
 
         logger.info(f"\rBuilding python {python_version} wrapper...   ")
 
-        run([make, f"-j{IFCOS_NUM_BUILD_PROCS}", "ifcopenshell_wrapper", "VERBOSE=1"], cwd=python_dir)
-        run([make, "install/local"], cwd=os.path.join(python_dir, "ifcwrap"))
+        run([make, f"-j{IFCOS_NUM_BUILD_PROCS}", "ifcopenshell_wrapper", "VERBOSE=1"], cwd=ifcos_build_dir)
+        run([make, "install/local"], cwd=os.path.join(ifcos_build_dir, "ifcwrap"))
 
         if python_executable:
             run([python_executable, "-m", "ensurepip"])
@@ -1503,12 +1569,14 @@ if "IfcOpenShell-Python" in targets:
 
             if platform.system() != "Darwin":
                 if BUILD_CFG == "Release":
-                    # TODO: This symbol name depends on the Python version?
-                    so = glob.glob(os.path.join(module_dir, "_ifcopenshell_wrapper*.so"))[0]
-                    if "wasm" in flags:
-                        run(["wasm-strip", so, "-k", "dylink.0"])
-                    else:
-                        run([strip, "-s", "-K", "PyInit__ifcopenshell_wrapper", so], cwd=module_dir)
+                    for so in glob.glob(os.path.join(module_dir, "*.so")):
+                        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?
+                            run([strip, "-s", "-K", "PyInit__ifcopenshell_wrapper", so], cwd=module_dir)
+                        else:
+                            run([strip, "--strip-unneeded", so], cwd=module_dir)
 
             return module_dir
 

nix/cache_dependencies.py

@@ -1,5 +1,3 @@
-# /// script
-# ///
 """
 Cache built dependencies for builds.
 

nix/patches/manifold/install-metadata-for-emscripten.patch

@@ -0,0 +1,17 @@
+# This file was generated with the assistance of an AI coding tool.
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 42e403b..764562f 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -249,11 +249,6 @@ set_source_files_properties(
+   PROPERTIES GENERATED TRUE
+ )
+ 
+-# If it's an EMSCRIPTEN build, we're done
+-if(EMSCRIPTEN)
+-  return()
+-endif()
+-
+ # CMake exports
+ configure_file(
+   cmake/manifoldConfig.cmake.in

pixi.lock

@@ -34,7 +34,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx-13.3.0-h9576a4e_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_impl_linux-64-13.3.0-hdbfa832_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_linux-64-13.3.0-h6834431_7.conda
-      - conda: https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.4-nompi_h2d575fe_105.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/icu-75.1-he02047a_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/imath-3.1.12-h7955e40_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/jxrlib-1.1-hd590300_3.conda
@@ -149,7 +148,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/osx-64/freeimage-3.18.0-h7cd8ba8_22.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/freetype-2.12.1-h60636b9_2.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/gmp-6.3.0-hf036a51_2.conda
-      - conda: https://conda.anaconda.org/conda-forge/osx-64/hdf5-1.14.4-nompi_h1607680_105.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/icu-75.1-h120a0e1_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/imath-3.1.12-h2016aa1_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/jxrlib-1.1-h10d778d_3.conda
@@ -243,7 +241,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/win-64/freeimage-3.18.0-h8310ca0_22.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/freetype-2.12.1-hdaf720e_2.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/gmp-6.3.0-hfeafd45_2.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/hdf5-1.14.4-nompi_hd5d9e70_105.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/imath-3.1.12-hbb528cf_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/intel-openmp-2024.2.1-h57928b3_1083.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/jxrlib-1.1-hcfcfb64_3.conda
@@ -349,7 +346,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx-13.3.0-h9576a4e_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_impl_linux-64-13.3.0-hdbfa832_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_linux-64-13.3.0-h6834431_7.conda
-      - conda: https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.4-nompi_h2d575fe_105.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/icu-75.1-he02047a_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/imath-3.1.12-h7955e40_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/jxrlib-1.1-hd590300_3.conda
@@ -464,7 +460,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/osx-64/freeimage-3.18.0-h7cd8ba8_22.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/freetype-2.12.1-h60636b9_2.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/gmp-6.3.0-hf036a51_2.conda
-      - conda: https://conda.anaconda.org/conda-forge/osx-64/hdf5-1.14.4-nompi_h1607680_105.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/icu-75.1-h120a0e1_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/imath-3.1.12-h2016aa1_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/jxrlib-1.1-h10d778d_3.conda
@@ -558,7 +553,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/win-64/freeimage-3.18.0-h8310ca0_22.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/freetype-2.12.1-hdaf720e_2.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/gmp-6.3.0-hfeafd45_2.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/hdf5-1.14.4-nompi_hd5d9e70_105.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/imath-3.1.12-hbb528cf_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/intel-openmp-2024.2.1-h57928b3_1083.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/jxrlib-1.1-hcfcfb64_3.conda
@@ -743,7 +737,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx-13.3.0-h9576a4e_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_impl_linux-64-13.3.0-hdbfa832_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_linux-64-13.3.0-h6834431_7.conda
-      - conda: https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.4-nompi_h2d575fe_105.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/icu-75.1-he02047a_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/imath-3.1.12-h7955e40_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/jxrlib-1.1-hd590300_3.conda
@@ -858,7 +851,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/osx-64/freeimage-3.18.0-h7cd8ba8_22.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/freetype-2.12.1-h60636b9_2.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/gmp-6.3.0-hf036a51_2.conda
-      - conda: https://conda.anaconda.org/conda-forge/osx-64/hdf5-1.14.4-nompi_h1607680_105.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/icu-75.1-h120a0e1_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/imath-3.1.12-h2016aa1_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/jxrlib-1.1-h10d778d_3.conda
@@ -952,7 +944,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/win-64/freeimage-3.18.0-h8310ca0_22.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/freetype-2.12.1-hdaf720e_2.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/gmp-6.3.0-hfeafd45_2.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/hdf5-1.14.4-nompi_hd5d9e70_105.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/imath-3.1.12-hbb528cf_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/intel-openmp-2024.2.1-h57928b3_1083.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/jxrlib-1.1-hcfcfb64_3.conda
@@ -1068,7 +1059,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_impl_linux-64-14.3.0-he663afc_4.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/gxx_linux-64-14.3.0-ha7acb78_11.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/h2-4.3.0-pyhcf101f3_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.6-nompi_h6e4c0c1_103.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/hpack-4.1.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/hyperframe-6.1.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/icu-75.1-he02047a_0.conda
@@ -1239,7 +1229,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/osx-64/geos-3.13.1-h502464c_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/gmp-6.3.0-hf036a51_2.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/h2-4.3.0-pyhcf101f3_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/osx-64/hdf5-1.14.6-nompi_hc8237f9_103.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/hpack-4.1.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/hyperframe-6.1.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/icu-75.1-h120a0e1_0.conda
@@ -1380,7 +1369,6 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/win-64/geos-3.13.1-h9ea8674_0.conda
       - conda: https://conda.anaconda.org/conda-forge/win-64/gmp-6.3.0-hfeafd45_2.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/h2-4.3.0-pyhcf101f3_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/win-64/hdf5-1.14.6-nompi_he30205f_103.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/hpack-4.1.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/hyperframe-6.1.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/idna-3.10-pyhd8ed1ab_1.conda
@@ -2990,106 +2978,6 @@ packages:
   - pkg:pypi/h2?source=compressed-mapping
   size: 95967
   timestamp: 1756364871835
-- conda: https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.4-nompi_h2d575fe_105.conda
-  sha256: 93d2bfc672f3ee0988d277ce463330a467f3686d3f7ee37812a3d8ca11776d77
-  md5: d76fff0092b6389a12134ddebc0929bd
-  depends:
-  - __glibc >=2.17,<3.0.a0
-  - libaec >=1.1.3,<2.0a0
-  - libcurl >=8.10.1,<9.0a0
-  - libgcc >=13
-  - libgfortran
-  - libgfortran5 >=13.3.0
-  - libstdcxx >=13
-  - libzlib >=1.3.1,<2.0a0
-  - openssl >=3.4.0,<4.0a0
-  license: BSD-3-Clause
-  license_family: BSD
-  size: 3950601
-  timestamp: 1733003331788
-- conda: https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.6-nompi_h6e4c0c1_103.conda
-  sha256: 4f173af9e2299de7eee1af3d79e851bca28ee71e7426b377e841648b51d48614
-  md5: c74d83614aec66227ae5199d98852aaf
-  depends:
-  - __glibc >=2.17,<3.0.a0
-  - libaec >=1.1.4,<2.0a0
-  - libcurl >=8.14.1,<9.0a0
-  - libgcc >=14
-  - libgfortran
-  - libgfortran5 >=14.3.0
-  - libstdcxx >=14
-  - libzlib >=1.3.1,<2.0a0
-  - openssl >=3.5.1,<4.0a0
-  license: BSD-3-Clause
-  license_family: BSD
-  purls: []
-  size: 3710057
-  timestamp: 1753357500665
-- conda: https://conda.anaconda.org/conda-forge/osx-64/hdf5-1.14.4-nompi_h1607680_105.conda
-  sha256: 56500937894b1ca917e1ae1bea64b873a9eec57d581173579189d0b1f590db26
-  md5: 12ebafc40b10d4bf519e4c2074c52aef
-  depends:
-  - __osx >=10.13
-  - libaec >=1.1.3,<2.0a0
-  - libcurl >=8.10.1,<9.0a0
-  - libcxx >=18
-  - libgfortran 5.*
-  - libgfortran5 >=13.2.0
-  - libzlib >=1.3.1,<2.0a0
-  - openssl >=3.4.0,<4.0a0
-  license: BSD-3-Clause
-  license_family: BSD
-  size: 3732340
-  timestamp: 1733003702265
-- conda: https://conda.anaconda.org/conda-forge/osx-64/hdf5-1.14.6-nompi_hc8237f9_103.conda
-  sha256: e41d22f672b1fbe713d22cf69630abffaee68bdb38a500a708fc70e6f639357f
-  md5: 3f1df98f96e0c369d94232712c9b87d0
-  depends:
-  - __osx >=10.13
-  - libaec >=1.1.4,<2.0a0
-  - libcurl >=8.14.1,<9.0a0
-  - libcxx >=19
-  - libgfortran
-  - libgfortran5 >=14.3.0
-  - libgfortran5 >=15.1.0
-  - libzlib >=1.3.1,<2.0a0
-  - openssl >=3.5.1,<4.0a0
-  license: BSD-3-Clause
-  license_family: BSD
-  purls: []
-  size: 3522832
-  timestamp: 1753358062940
-- conda: https://conda.anaconda.org/conda-forge/win-64/hdf5-1.14.4-nompi_hd5d9e70_105.conda
-  sha256: e8ced65c604a3b9e4803758a25149d71d8096f186fe876817a0d1d97190550c0
-  md5: 4381be33460283890c34341ecfa42d97
-  depends:
-  - libaec >=1.1.3,<2.0a0
-  - libcurl >=8.10.1,<9.0a0
-  - libzlib >=1.3.1,<2.0a0
-  - openssl >=3.4.0,<4.0a0
-  - ucrt >=10.0.20348.0
-  - vc >=14.2,<15
-  - vc14_runtime >=14.29.30139
-  license: BSD-3-Clause
-  license_family: BSD
-  size: 2048450
-  timestamp: 1733003052575
-- conda: https://conda.anaconda.org/conda-forge/win-64/hdf5-1.14.6-nompi_he30205f_103.conda
-  sha256: 0a90263b97e9860cec6c2540160ff1a1fff2a609b3d96452f8716ae63489dac5
-  md5: f1f7aaf642cefd2190582550eaca4658
-  depends:
-  - libaec >=1.1.4,<2.0a0
-  - libcurl >=8.14.1,<9.0a0
-  - libzlib >=1.3.1,<2.0a0
-  - openssl >=3.5.1,<4.0a0
-  - ucrt >=10.0.20348.0
-  - vc >=14.3,<15
-  - vc14_runtime >=14.44.35208
-  license: BSD-3-Clause
-  license_family: BSD
-  purls: []
-  size: 2031491
-  timestamp: 1753357255237
 - conda: https://conda.anaconda.org/conda-forge/noarch/hpack-4.1.0-pyhd8ed1ab_0.conda
   sha256: 6ad78a180576c706aabeb5b4c8ceb97c0cb25f1e112d76495bff23e3779948ba
   md5: 0a802cb9888dd14eeefc611f05c40b6e

pixi.toml

@@ -31,7 +31,6 @@ occt = { version = "*", build = "*novtk*" }
 cgal-cpp = "*"
 numpy = "*"
 lark = "*"
-hdf5 = "*"
 eigen = "*"
 mpfr = "*"
 gmp = "*"

pyodide/build_pyodide.sh

@@ -35,6 +35,12 @@ sed -i s/0.8.0/$VERSION/g packages/ifcopenshell/meta.yaml
 # Otherwise pyodide build path typically includes package version, so cached cmake configs might break.
 export BUILD_DIR=`readlink -f ifcopenshell_build`
 
+# Sat, 25 Apr 2026 12:11:39 GMT 2026-04-25 12:11:39,173 - DEBUG - running
+# command `make -j5 ifcopenshell_wrapper VERBOSE=1` in directory
+# '/home/runner/work/IfcOpenShell/IfcOpenShell/ifcopenshell_build/Linux/wasm/build/ifcopenshell/build'
+# Sat, 25 Apr 2026 12:18:01 GMT Error: Process completed with exit code 143.
+export IFCOS_NUM_BUILD_PROCS=1
+
 # Use build-recipes-no-deps first, so logs would be printed to stdout.
 pyodide build-recipes-no-deps ifcopenshell
 pyodide build-recipes ifcopenshell --install

pyodide/order_pyodide_wheel_shared_objects.py

@@ -0,0 +1,132 @@
+#!/usr/bin/env python3
+# This file was generated with the assistance of an AI coding tool.
+"""Order Pyodide wheel shared objects so wasm side modules load safely."""
+
+from __future__ import annotations
+
+import argparse
+import os
+import re
+import tempfile
+import zipfile
+from pathlib import Path
+
+
+SCHEMA_ORDER = {
+    "ifc2x3": 0,
+    "ifc4": 1,
+    "ifc4x1": 2,
+    "ifc4x2": 3,
+    "ifc4x3": 4,
+    "ifc4x3_add1": 5,
+    "ifc4x3_add2": 6,
+}
+
+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$")
+DOCUMENT_PLUGIN_RE = re.compile(r"^ifcopenshell\.document\.[^.]+\.([^.]+)\.so$")
+GEOMETRY_SERIALIZATION_PLUGIN_RE = re.compile(r"^ifcopenshell\.geometry\.serialization\.([^.]+)\.so$")
+
+
+def schema_key(schema: str) -> tuple[int, str]:
+    schema = schema.lower()
+    return SCHEMA_ORDER.get(schema, len(SCHEMA_ORDER)), schema
+
+
+def shared_object_sort_key(filename: str, index: int) -> tuple[int, tuple[int, str], str, int]:
+    basename = Path(filename).name
+    if MAIN_SHARED_OBJECT_RE.match(basename):
+        return 0, schema_key(""), basename, index
+
+    if match := SCHEMA_PLUGIN_RE.match(basename):
+        return 1, schema_key(match.group(1)), basename, index
+
+    if match := MAPPING_PLUGIN_RE.match(basename):
+        return 2, schema_key(match.group(1)), basename, index
+
+    if match := DOCUMENT_PLUGIN_RE.match(basename):
+        return 3, schema_key(match.group(1)), basename, index
+
+    if match := GEOMETRY_SERIALIZATION_PLUGIN_RE.match(basename):
+        return 4, schema_key(match.group(1)), basename, index
+
+    return 5, schema_key(""), basename, index
+
+
+def ordered_infos(infos: list[zipfile.ZipInfo]) -> list[zipfile.ZipInfo]:
+    shared_infos = [(index, info) for index, info in enumerate(infos) if info.filename.endswith(".so")]
+    ordered_shared_infos = [
+        info for index, info in sorted(shared_infos, key=lambda item: shared_object_sort_key(item[1].filename, item[0]))
+    ]
+    ordered_shared_iter = iter(ordered_shared_infos)
+    return [next(ordered_shared_iter) if info.filename.endswith(".so") else info for info in infos]
+
+
+def zip_info_for_write(source: zipfile.ZipInfo) -> zipfile.ZipInfo:
+    info = zipfile.ZipInfo(source.filename)
+    info.date_time = source.date_time
+    info.compress_type = source.compress_type
+    info.comment = source.comment
+    info.create_system = source.create_system
+    info.external_attr = source.external_attr
+    info.extra = source.extra
+    return info
+
+
+def shared_object_names(infos: list[zipfile.ZipInfo]) -> list[str]:
+    return [info.filename for info in infos if info.filename.endswith(".so")]
+
+
+def rewrite_wheel(wheel: Path, ordered: list[zipfile.ZipInfo]) -> None:
+    fd, temp_name = tempfile.mkstemp(prefix=f".{wheel.name}.", suffix=".tmp", dir=wheel.parent)
+    os.close(fd)
+    temp_path = Path(temp_name)
+    try:
+        with zipfile.ZipFile(wheel) as zin, zipfile.ZipFile(
+            temp_path, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=9
+        ) as zout:
+            for info in ordered:
+                zout.writestr(zip_info_for_write(info), zin.read(info))
+        os.replace(temp_path, wheel)
+    finally:
+        if temp_path.exists():
+            temp_path.unlink()
+
+
+def order_wheel(wheel: Path, check: bool) -> bool:
+    wheel = wheel.resolve()
+    if wheel.suffix != ".whl":
+        raise ValueError(f"not a wheel: {wheel}")
+
+    with zipfile.ZipFile(wheel) as zf:
+        infos = zf.infolist()
+
+    ordered = ordered_infos(infos)
+    changed = shared_object_names(infos) != shared_object_names(ordered)
+    if check:
+        if changed:
+            print(f"{wheel}: shared object order needs updating")
+            return False
+        print(f"{wheel}: shared object order is already valid")
+        return True
+
+    if changed:
+        rewrite_wheel(wheel, ordered)
+        print(f"{wheel}: reordered shared objects")
+    else:
+        print(f"{wheel}: shared object order is already valid")
+    return True
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("wheel", type=Path, help="Wheel to rewrite in place")
+    parser.add_argument("--check", action="store_true", help="Only validate the current shared object order")
+    args = parser.parse_args()
+
+    return 0 if order_wheel(args.wheel, args.check) else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

pyodide/split_pyodide_ifcopenshell_wheel.py

@@ -0,0 +1,297 @@
+#!/usr/bin/env python3
+"""Split optional IfcOpenShell Pyodide payloads into separate wheels."""
+
+from __future__ import annotations
+
+import argparse
+import base64
+import csv
+import hashlib
+import io
+import os
+import re
+import sys
+import time
+import zipfile
+from email.parser import Parser
+from pathlib import Path
+
+
+MAIN_SHARED_OBJECT_RE = re.compile(r"(^|/)_ifcopenshell_wrapper(?:\.|$)")
+PURE_PYTHON_PACKAGE_NAME = "ifcopenshell-pure-python"
+PURE_PYTHON_PREFIXES = (
+    "ifcopenshell/api/",
+    "ifcopenshell/express/",
+    "ifcopenshell/mvd/",
+    "ifcopenshell/simple_spf/",
+)
+
+
+def wheel_parts(path: Path) -> tuple[str, str, str, str, str]:
+    if path.suffix != ".whl":
+        raise ValueError(f"not a wheel: {path}")
+    stem = path.name[:-4]
+    left, py_tag, abi_tag, platform_tag = stem.rsplit("-", 3)
+    dist, version = left.rsplit("-", 1)
+    return dist, version, py_tag, abi_tag, platform_tag
+
+
+def safe_name(name: str) -> str:
+    return re.sub(r"[-_.]+", "-", name).lower().strip("-")
+
+
+def wheel_escape(value: str) -> str:
+    return re.sub(r"[^\w\d.]+", "_", value, flags=re.UNICODE)
+
+
+def wheel_version_escape(value: str) -> str:
+    return re.sub(r"[^\w\d.+]+", "_", value, flags=re.UNICODE)
+
+
+def dist_info_dir(name: str, version: str) -> str:
+    return f"{wheel_escape(name)}-{wheel_version_escape(version)}.dist-info"
+
+
+def sha256_record_value(data: bytes) -> str:
+    digest = hashlib.sha256(data).digest()
+    return "sha256=" + base64.urlsafe_b64encode(digest).decode("ascii").rstrip("=")
+
+
+def make_info(name: str, *, source: zipfile.ZipInfo | None = None, mode: int | None = None) -> zipfile.ZipInfo:
+    info = zipfile.ZipInfo(name)
+    if source is not None:
+        info.date_time = source.date_time
+        info.external_attr = source.external_attr
+        info.comment = source.comment
+        info.create_system = source.create_system
+    else:
+        info.date_time = time.localtime(time.time())[:6]
+        info.external_attr = ((mode if mode is not None else 0o644) & 0xFFFF) << 16
+        info.create_system = 3
+    info.compress_type = zipfile.ZIP_DEFLATED
+    return info
+
+
+def write_record(zf: zipfile.ZipFile, entries: dict[str, bytes | None], record_name: str) -> None:
+    rows: list[list[str]] = []
+    for name in sorted(entries):
+        data = entries[name]
+        if name == record_name:
+            rows.append([name, "", ""])
+        elif data is None:
+            raise ValueError(f"missing bytes for RECORD entry {name}")
+        else:
+            rows.append([name, sha256_record_value(data), str(len(data))])
+
+    buf = io.StringIO(newline="")
+    writer = csv.writer(buf, lineterminator="\n")
+    writer.writerows(rows)
+    zf.writestr(make_info(record_name), buf.getvalue().encode("utf-8"))
+
+
+def read_original_metadata(zf: zipfile.ZipFile) -> tuple[str, str, str]:
+    metadata_names = [n for n in zf.namelist() if n.endswith(".dist-info/METADATA")]
+    wheel_names = [n for n in zf.namelist() if n.endswith(".dist-info/WHEEL")]
+    record_names = [n for n in zf.namelist() if n.endswith(".dist-info/RECORD")]
+    if len(metadata_names) != 1 or len(wheel_names) != 1 or len(record_names) != 1:
+        raise ValueError("expected exactly one METADATA, WHEEL, and RECORD in the source wheel")
+    return metadata_names[0], wheel_names[0], record_names[0]
+
+
+def shared_package_name(so_path: str) -> str:
+    stem = Path(so_path).name.removesuffix(".so")
+    stem = re.sub(r"[^A-Za-z0-9]+", "-", stem).strip("-")
+    return safe_name(stem)
+
+
+def is_pure_python_split_path(path: str) -> bool:
+    return any(path.startswith(prefix) for prefix in PURE_PYTHON_PREFIXES)
+
+
+def build_wheel(
+    output_dir: Path,
+    package_name: str,
+    version: str,
+    tag: str,
+    root_is_purelib: bool,
+    summary: str,
+    payloads: list[tuple[zipfile.ZipInfo, bytes]],
+    license_files: dict[str, bytes],
+) -> Path:
+    di = dist_info_dir(package_name, version)
+    wheel_name = f"{wheel_escape(package_name)}-{wheel_version_escape(version)}-{tag}.whl"
+    out = output_dir / wheel_name
+    record_name = f"{di}/RECORD"
+    entries: dict[str, bytes | None] = {}
+
+    metadata = (
+        "Metadata-Version: 2.4\n"
+        f"Name: {package_name}\n"
+        f"Version: {version}\n"
+        f"Summary: {summary}\n"
+        "License-File: COPYING\n"
+        "License-File: COPYING.LESSER\n"
+        "\n"
+    ).encode("utf-8")
+    wheel = (
+        "Wheel-Version: 1.0\n"
+        "Generator: split_pyodide_ifcopenshell_wheel.py\n"
+        f"Root-Is-Purelib: {str(root_is_purelib).lower()}\n"
+        f"Tag: {tag}\n"
+        "\n"
+    ).encode("utf-8")
+
+    with zipfile.ZipFile(out, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=9) as zf:
+        for info, data in payloads:
+            zf.writestr(make_info(info.filename, source=info), data)
+            entries[info.filename] = data
+
+        metadata_name = f"{di}/METADATA"
+        wheel_meta_name = f"{di}/WHEEL"
+        zf.writestr(make_info(metadata_name), metadata)
+        zf.writestr(make_info(wheel_meta_name), wheel)
+        entries[metadata_name] = metadata
+        entries[wheel_meta_name] = wheel
+
+        for basename, data in license_files.items():
+            name = f"{di}/licenses/{basename}"
+            zf.writestr(make_info(name), data)
+            entries[name] = data
+
+        entries[record_name] = None
+        write_record(zf, entries, record_name)
+    return out
+
+
+def rewrite_main_wheel(source: Path, target: Path, split_paths: set[str]) -> None:
+    with zipfile.ZipFile(source) as zin, zipfile.ZipFile(
+        target, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=9
+    ) as zout:
+        _, _, record_name = read_original_metadata(zin)
+        entries: dict[str, bytes | None] = {}
+        for info in zin.infolist():
+            if info.filename in split_paths or info.filename == record_name:
+                continue
+            data = zin.read(info.filename)
+            zout.writestr(make_info(info.filename, source=info), data)
+            entries[info.filename] = data
+        entries[record_name] = None
+        write_record(zout, entries, record_name)
+
+
+def verify_wheel(path: Path) -> None:
+    with zipfile.ZipFile(path) as zf:
+        zf.testzip()
+        metadata_name, wheel_name, record_name = read_original_metadata(zf)
+        Parser().parsestr(zf.read(metadata_name).decode("utf-8"))
+        wheel_text = zf.read(wheel_name).decode("utf-8")
+        if "Wheel-Version:" not in wheel_text or "Tag:" not in wheel_text:
+            raise ValueError(f"invalid WHEEL metadata in {path}")
+
+        record_rows = list(csv.reader(io.StringIO(zf.read(record_name).decode("utf-8"))))
+        names = {row[0] for row in record_rows}
+        missing = set(zf.namelist()) - names
+        if missing:
+            raise ValueError(f"{path} RECORD is missing entries: {sorted(missing)[:5]}")
+        for name, digest, size in record_rows:
+            if name == record_name:
+                continue
+            data = zf.read(name)
+            if digest != sha256_record_value(data) or size != str(len(data)):
+                raise ValueError(f"{path} RECORD mismatch for {name}")
+
+
+def split_wheel(wheel_path: Path, output_dir: Path) -> None:
+    wheel_path = wheel_path.expanduser().resolve()
+    if not wheel_path.exists():
+        raise FileNotFoundError(wheel_path)
+
+    output_dir = output_dir.expanduser().resolve()
+    output_dir.mkdir(parents=True, exist_ok=True)
+    main_wheel_path = output_dir / wheel_path.name
+    if main_wheel_path.resolve(strict=False) == wheel_path:
+        raise ValueError("output directory must not point to the input wheel location")
+
+    _, version, py_tag, abi_tag, platform_tag = wheel_parts(wheel_path)
+    binary_tag = f"{py_tag}-{abi_tag}-{platform_tag}"
+    pure_tag = "py3-none-any"
+
+    with zipfile.ZipFile(wheel_path) as zf:
+        file_infos = [info for info in zf.infolist() if not info.is_dir()]
+        so_infos = [info for info in file_infos if info.filename.endswith(".so")]
+        split_so_infos = [info for info in so_infos if not MAIN_SHARED_OBJECT_RE.search(Path(info.filename).name)]
+        pure_python_infos = [info for info in file_infos if is_pure_python_split_path(info.filename)]
+        if not split_so_infos and not pure_python_infos:
+            raise RuntimeError("no secondary .so files or pure Python subpackages found to split")
+
+        license_files = {
+            Path(info.filename).name: zf.read(info.filename)
+            for info in file_infos
+            if ".dist-info/licenses/" in info.filename
+        }
+        split_so_payloads = [(info, zf.read(info.filename)) for info in split_so_infos]
+        pure_python_payloads = [(info, zf.read(info.filename)) for info in pure_python_infos]
+
+    created_wheels: list[Path] = []
+    for info, data in split_so_payloads:
+        package_name = shared_package_name(info.filename)
+        created_wheels.append(
+            build_wheel(
+                output_dir,
+                package_name,
+                version,
+                binary_tag,
+                False,
+                f"Pyodide shared library split from IfcOpenShell ({Path(info.filename).name}).",
+                [(info, data)],
+                license_files,
+            )
+        )
+
+    if pure_python_payloads:
+        created_wheels.append(
+            build_wheel(
+                output_dir,
+                PURE_PYTHON_PACKAGE_NAME,
+                version,
+                pure_tag,
+                True,
+                "Pure Python subpackages split from IfcOpenShell.",
+                pure_python_payloads,
+                license_files,
+            )
+        )
+
+    temp_main_wheel = output_dir / f".{wheel_path.name}.tmp"
+    try:
+        rewrite_main_wheel(
+            wheel_path,
+            temp_main_wheel,
+            {info.filename for info, _ in split_so_payloads + pure_python_payloads},
+        )
+        verify_wheel(temp_main_wheel)
+        for created in created_wheels:
+            verify_wheel(created)
+        os.replace(temp_main_wheel, main_wheel_path)
+    finally:
+        if temp_main_wheel.exists():
+            temp_main_wheel.unlink()
+
+
+def parse_args(argv: list[str]) -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Extract optional IfcOpenShell Pyodide payloads into separate wheel artifacts."
+    )
+    parser.add_argument("wheel", help="IfcOpenShell Pyodide wheel to split")
+    parser.add_argument("output_dir", help="Directory for generated wheels")
+    return parser.parse_args(argv)
+
+
+def main(argv: list[str] | None = None) -> int:
+    args = parse_args(sys.argv[1:] if argv is None else argv)
+    split_wheel(Path(args.wheel), Path(args.output_dir))
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

pyodide/test/test_wheel.py

@@ -14,6 +14,8 @@ def test_ifcopenshell_import(selenium):
         import micropip
         await micropip.install(f"./{WHEEL_FILENAME}")
         import ifcopenshell
+        from pathlib import Path
+        ifcopenshell.set_plugin_search_paths([str(Path(ifcopenshell.__file__).parent)])
         ifc_file = ifcopenshell.file()
         wall = ifc_file.create_entity("IfcWall")
         wall1 = ifc_file.by_type("IfcWall")[0]

pyproject.toml

@@ -3,9 +3,9 @@ name = "IfcOpenShell"
 version = "0.0.0"
 dependencies = [
     "black==26.3.1",
-    "ruff==0.15.12",
+    "ruff==0.15.9",
     "poethepoet",
-    "ty==0.0.32",
+    "ty==0.0.29",
     "gersemi==0.26.1",
 ]
 
@@ -215,7 +215,10 @@ exclude = [
 
 [tool.poe.tasks]
 
-ruff = "ruff check"
+ruff-main = "ruff check --extend-exclude nix/build-all.py"
+# It's actually Python 3.6, but ruff only supports 3.7+, but it should do.
+ruff-old = "ruff check nix/build-all.py --target-version py37"
+ruff.sequence = ["ruff-main", "ruff-old"]
 
 black = "black ."
 
@@ -235,7 +238,7 @@ ty-venv-ios.sequence = [
     {cmd = "uv pip install -r src/ifcopenshell-python/type-check-requirements.txt --python=src/ifcopenshell-python/.venv"},
 ]
 
-format.sequence = ["black", "ruff"]
+format.sequence = ["black", "ruff-main", "ruff-old"]
 
 cmake-format = "gersemi . --in-place"
 

src/bcf/bcf/v2/visinfo.py

@@ -316,7 +316,7 @@ def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
     Returns:
         The BCF viewpoint definition.
     """
-    ifc_file = element.wrapped_data.file
+    ifc_file = element.file
     unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
     elem_placement = ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement)
     elem_placement[:3, 3] *= unit_scale

src/bcf/bcf/v3/visinfo.py

@@ -316,7 +316,7 @@ def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
     Returns:
         The BCF viewpoint definition.
     """
-    ifc_file = element.wrapped_data.file
+    ifc_file = element.file
     unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
     elem_placement = ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement)
     elem_placement[:3, 3] *= unit_scale

src/bonsai/Makefile

@@ -17,8 +17,8 @@
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
 
 SHELL := sh
-PYTHON:=python3
-PIP:=pip3
+PYTHON:=python3.11
+PIP:=pip3.11
 PATCH:=patch
 SED:=sed -i
 VENV_ACTIVATE:=bin/activate
@@ -192,11 +192,7 @@ endif
 	# Provides networkx graph analysis for project dependency calculations
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download networkx --dest=./wheels
 	# Required by IFCDiff
-	# Pinned <9.1: deepdiff 9.1.0 adds cachebox<6,>=5.2 which only ships macOS x86_64
-	# wheels for macosx_10_12+ and is incompatible with our macos py311 --platform
-	# macosx_10_10_x86_64 target. Revisit once the macos py311 platform tag is bumped
-	# to 10_13 (matching py312/py313).
-	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download "deepdiff<9.1" --dest=./wheels
+	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download deepdiff --dest=./wheels
 	# Required by IFCCSV and ifcopenshell.util.selector
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download lark --dest=./wheels
 	# Required by IFC4D
@@ -360,10 +356,6 @@ else
 	pytest test/tool/test_$(MODULE).py --maxfail=1
 endif
 
-.PHONY: test-modal
-test-modal:
-	blender --enable-event-simulate --python test/modal/test_modal.py --window-maximized
-
 # Reregistering test is not added to the standard test suite because during unregister
 # Blender removes all Bonsai dependencies breaking dev-environment symlinks.
 .PHONY: test-reregister

src/bonsai/bonsai/bim/__init__.py

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import importlib
 import os
@@ -27,19 +25,7 @@ import bpy
 import bpy.utils.previews
 from bpy_extras.io_utils import ExportHelper, ImportHelper
 
-from . import handler, operator, parametric_lifecycle, prop, ui
-
-
-def _parametric_gizmo_preference_classes() -> list[type]:
-    """Resolves the registry-driven ``GizmoPreferences<X>`` classes for the
-    ``classes`` list below. ``import bonsai.tool`` is kept local to surface
-    the load-order constraint: it relies on ``from . import handler, …``
-    above having primed the
-    ``tool/ifc.py → bim/ifc.py → bim/handler.py → bonsai.tool`` cycle."""
-    import bonsai.tool as tool
-
-    return tool.Parametric.iter_gizmo_preference_classes(ui)
-
+from . import handler, operator, prop, ui
 
 try:
     from bonsai.translations import translations_dict
@@ -171,10 +157,9 @@ classes = [
     ui.BIM_UL_tab_visibilities,
     ui.BIM_UL_panel_visibilities,
     ui.DocPreferences,
-    # Per-parametric-type ``GizmoPreferences<Name>`` classes — must register
-    # before ``ui.GizmoPreferences`` which holds the matching PointerProperty
-    # fields. Driven by ``tool.Parametric.EDIT_TYPES``.
-    *_parametric_gizmo_preference_classes(),
+    ui.GizmoPreferencesDoor,  # Register before GizmoPreferences
+    ui.GizmoPreferencesWindow,  # Register before GizmoPreferences
+    ui.GizmoPreferencesStair,  # Register before GizmoPreferences
     ui.GizmoPreferences,
     # ui.DefaultParameters and ui.BIM_ADDON_preferences are registered separately after modules (see late_classes below)
     # Tabs panel
@@ -283,8 +268,6 @@ def register():
     bpy.app.handlers.depsgraph_update_post.append(on_register)
     bpy.app.handlers.undo_post.append(handler.undo_post)
     bpy.app.handlers.redo_post.append(handler.redo_post)
-    # Must follow the two appends above so regenerators see restored IFC state.
-    parametric_lifecycle.install_parametric_lifecycle_handlers()
     bpy.app.handlers.load_post.append(handler.load_post)
     bpy.app.handlers.load_post.append(handler.loadIfcStore)
     bpy.types.Scene.BIMProperties = bpy.props.PointerProperty(type=prop.BIMProperties)
@@ -342,7 +325,6 @@ def unregister():
 
     unregister_classes(classes)
 
-    parametric_lifecycle.uninstall_parametric_lifecycle_handlers()
     bpy.app.handlers.load_post.remove(handler.load_post)
     bpy.app.handlers.load_post.remove(handler.loadIfcStore)
     del bpy.types.Scene.BIMProperties

src/bonsai/bonsai/bim/data/cache/README.md

@@ -1 +0,0 @@
-This cache folder contains .h5 files. These files cache IFC geometry for performance only. You may safely clear the contents of this cache folder without losing data.

src/bonsai/bonsai/bim/data/fonts/LICENSE

@@ -1,96 +0,0 @@
-Copyright (c) 2011-2012, Nikita Volchenkov (<nikitavolchenkov@gmail.com>),
-with Reserved Font Name OpenGost Type B.
-
-Copyright (c) 2012, Valek Filippov (<frob@gnome.org>).
-
-This Font Software is licensed under the SIL Open Font License, Version 1.1.
-This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
-
-
------------------------------------------------------------
-SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
------------------------------------------------------------
-
-PREAMBLE
-The goals of the Open Font License (OFL) are to stimulate worldwide
-development of collaborative font projects, to support the font creation
-efforts of academic and linguistic communities, and to provide a free and
-open framework in which fonts may be shared and improved in partnership
-with others.
-
-The OFL allows the licensed fonts to be used, studied, modified and
-redistributed freely as long as they are not sold by themselves. The
-fonts, including any derivative works, can be bundled, embedded, 
-redistributed and/or sold with any software provided that any reserved
-names are not used by derivative works. The fonts and derivatives,
-however, cannot be released under any other type of license. The
-requirement for fonts to remain under this license does not apply
-to any document created using the fonts or their derivatives.
-
-DEFINITIONS
-"Font Software" refers to the set of files released by the Copyright
-Holder(s) under this license and clearly marked as such. This may
-include source files, build scripts and documentation.
-
-"Reserved Font Name" refers to any names specified as such after the
-copyright statement(s).
-
-"Original Version" refers to the collection of Font Software components as
-distributed by the Copyright Holder(s).
-
-"Modified Version" refers to any derivative made by adding to, deleting,
-or substituting -- in part or in whole -- any of the components of the
-Original Version, by changing formats or by porting the Font Software to a
-new environment.
-
-"Author" refers to any designer, engineer, programmer, technical
-writer or other person who contributed to the Font Software.
-
-PERMISSION & CONDITIONS
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Font Software, to use, study, copy, merge, embed, modify,
-redistribute, and sell modified and unmodified copies of the Font
-Software, subject to the following conditions:
-
-1) Neither the Font Software nor any of its individual components,
-in Original or Modified Versions, may be sold by itself.
-
-2) Original or Modified Versions of the Font Software may be bundled,
-redistributed and/or sold with any software, provided that each copy
-contains the above copyright notice and this license. These can be
-included either as stand-alone text files, human-readable headers or
-in the appropriate machine-readable metadata fields within text or
-binary files as long as those fields can be easily viewed by the user.
-
-3) No Modified Version of the Font Software may use the Reserved Font
-Name(s) unless explicit written permission is granted by the corresponding
-Copyright Holder. This restriction only applies to the primary font name as
-presented to the users.
-
-4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
-Software shall not be used to promote, endorse or advertise any
-Modified Version, except to acknowledge the contribution(s) of the
-Copyright Holder(s) and the Author(s) or with their explicit written
-permission.
-
-5) The Font Software, modified or unmodified, in part or in whole,
-must be distributed entirely under this license, and must not be
-distributed under any other license. The requirement for fonts to
-remain under this license does not apply to any document created
-using the Font Software.
-
-TERMINATION
-This license becomes null and void if any of the above conditions are
-not met.
-
-DISCLAIMER
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.

src/bonsai/bonsai/bim/decorator_cache.py

@@ -1,119 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Bonsai 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
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Shared structural-change cache token for POST_VIEW decorators.
-
-Decorators include the token in their cache key and rebuild on bump."""
-
-from __future__ import annotations
-
-from collections.abc import Callable
-from typing import Any, Generic, TypeVar
-
-import bpy
-
-T = TypeVar("T")
-
-_DECORATOR_CACHE_TOKEN = 0
-
-
-def get_decorator_cache_token() -> int:
-    return _DECORATOR_CACHE_TOKEN
-
-
-def reset_for_test() -> None:
-    """Test-only: reset the cache token to 0 so bump-count assertions are stable."""
-    global _DECORATOR_CACHE_TOKEN
-    _DECORATOR_CACHE_TOKEN = 0
-
-
-@bpy.app.handlers.persistent
-def _bump_decorator_cache_token(*args: Any) -> None:
-    """depsgraph_update_post fires every animation frame and every driver
-    evaluation, even when no IFC-relevant ID block changed. Unconditional
-    bumping defeats the cache: an animated scene rebuilds every decorator
-    every viewport tick. Gate the depsgraph path on Object geometry or
-    transform updates; undo / redo / load have no depsgraph and always
-    invalidate.
-
-    Coverage assumption: ``TokenCache`` consumers key on Object identity
-    (depsgraph updates whose ``id`` is a ``bpy.types.Object``). Mesh /
-    Material / NodeTree updates that don't surface as an Object change
-    do NOT invalidate the token — a decorator that caches material- or
-    mesh-data-derived state must gate on a separate signal."""
-    global _DECORATOR_CACHE_TOKEN
-    if len(args) >= 2:
-        depsgraph = args[1]
-        if depsgraph is not None and hasattr(depsgraph, "updates"):
-            if not any(
-                (getattr(u, "is_updated_geometry", False) or getattr(u, "is_updated_transform", False))
-                and hasattr(u, "id")
-                and isinstance(u.id, bpy.types.Object)
-                for u in depsgraph.updates
-            ):
-                return
-    _DECORATOR_CACHE_TOKEN += 1
-
-
-def _hooks() -> tuple[Any, ...]:
-    return (
-        bpy.app.handlers.depsgraph_update_post,
-        bpy.app.handlers.undo_post,
-        bpy.app.handlers.redo_post,
-        bpy.app.handlers.load_post,
-    )
-
-
-def install_decorator_cache_handlers() -> None:
-    """Append the bump handler to each hook; idempotent."""
-    for hook in _hooks():
-        if _bump_decorator_cache_token not in hook:
-            hook.append(_bump_decorator_cache_token)
-
-
-def uninstall_decorator_cache_handlers() -> None:
-    for hook in _hooks():
-        try:
-            hook.remove(_bump_decorator_cache_token)
-        except ValueError:
-            pass
-
-
-class TokenCache(Generic[T]):
-    """Memoise a single value keyed on ``(caller_key, get_decorator_cache_token())``.
-
-    The token component invalidates the cache on depsgraph / undo / redo / load,
-    so cached ``bpy.types.Object`` references can't outlive the underlying ID
-    blocks. Holds exactly one entry — last key wins."""
-
-    __slots__ = ("_key", "_value")
-
-    def __init__(self) -> None:
-        self._key: tuple[Any, int] | None = None
-        self._value: T | None = None
-
-    def get_or_compute(self, key: Any, compute: Callable[[], T]) -> T:
-        token_key = (key, _DECORATOR_CACHE_TOKEN)
-        if token_key == self._key:
-            return self._value  # type: ignore[return-value]
-        value = compute()
-        self._key = token_key
-        self._value = value
-        return value

src/bonsai/bonsai/bim/export_ifc.py

@@ -43,7 +43,6 @@ class IfcExporter:
     def export(self):
         self.file = tool.Ifc.get()
         self.set_header()
-        IfcStore.update_cache()
         self.sync_all_objects()
         extension = self.ifc_export_settings.output_file.split(".")[-1].lower()
         if extension == "ifczip":

src/bonsai/bonsai/bim/handler.py

@@ -15,12 +15,11 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import os
 import weakref
 from collections.abc import Callable
+from math import cos
 from typing import Union
 
 import bpy
@@ -32,13 +31,8 @@ from bpy.app.handlers import persistent
 from mathutils import Vector
 
 import bonsai.bim
-import bonsai.core.model as core_model
 import bonsai.tool as tool
-from bonsai.bim.decorator_cache import (
-    install_decorator_cache_handlers,
-    uninstall_decorator_cache_handlers,
-)
-from bonsai.bim.ifc import IfcStore, get_cache_or_detect_lock
+from bonsai.bim.ifc import IfcStore
 from bonsai.bim.module.aggregate.decorator import AggregateDecorator
 from bonsai.bim.module.georeference.decorator import GeoreferenceDecorator
 from bonsai.bim.module.model.data import AuthoringData
@@ -46,9 +40,7 @@ from bonsai.bim.module.model.decorator import (
     BoundingBoxDecorator,
     SlabDirectionDecorator,
     WallAxisDecorator,
-    WallFilletPreviewDecorator,
 )
-from bonsai.bim.module.model.preview_base import discard_pending_previews
 from bonsai.bim.module.nest.decorator import NestDecorator
 
 cwd = os.path.dirname(os.path.realpath(__file__))
@@ -141,39 +133,14 @@ def update_bim_tool_props():
 
             if is_annotation_tool and (object_type := tool.Drawing.get_annotation_type_object_type(element_type)):
                 aprops.object_type = object_type
-                try:
-                    aprops.relating_type_id = str(element_type.id())
-                except TypeError:
-                    # EnumProperty items are rebuilt asynchronously when ifc_class changes;
-                    # this assignment can race a stale item list. Skipping is harmless —
-                    # the UI will resync on the next active_object_callback.
-                    pass
+                aprops.relating_type_id = str(element_type.id())
                 return
 
             if is_bim_tool:
-                try:
-                    props.ifc_class = element_type.is_a()
-                except TypeError:
-                    # ifc_class only lists element/space types present in the model, so an
-                    # unsupported type (e.g. a raw IfcTypeProduct) or a stale item list mid-
-                    # rebuild raises `enum "<class>" not found`. Skip rather than crash the
-                    # handler — it re-fires on the next selection and the panel resyncs.
-                    pass
+                props.ifc_class = element_type.is_a()
 
-            # Only assign when the target enum is the one that lists this type — otherwise
-            # we hit `enum "<id>" not found in (...)` if the user selects an element of a
-            # different class than the workspace tool was built for (e.g. selecting a wall
-            # while the door tool is active).
-            tool_class_match = TOOLS_TO_CLASSES_MAP.get(current_tool.idname) == element_type.is_a()
-            bim_tool_class_match = is_bim_tool and props.ifc_class == element_type.is_a()
-            if bim_tool_class_match or tool_class_match:
-                try:
-                    props.relating_type_id = str(element_type.id())
-                except TypeError:
-                    # Defensive: the enum item list can lag behind ifc_class assignment
-                    # above. Skipping leaves the panel briefly out of sync rather than
-                    # crashing the handler (which Blender re-fires on every selection).
-                    pass
+            if is_bim_tool or TOOLS_TO_CLASSES_MAP.get(current_tool.idname) == element_type.is_a():
+                props.relating_type_id = str(element_type.id())
 
     if is_annotation_tool:
         return
@@ -198,9 +165,7 @@ def update_bim_tool_props():
     if AuthoringData.data["active_material_usage"] == "LAYER2":
         x_angle = get_x_angle(extrusion)
         axis = tool.Model.get_wall_axis(obj)["reference"]
-        props.extrusion_depth = core_model.vertical_height_from_extrusion_depth(
-            extrusion.Depth * si_conversion, x_angle
-        )
+        props.extrusion_depth = abs(extrusion.Depth * si_conversion * cos(x_angle))
         props.length = (axis[1] - axis[0]).length
         props.x_angle = x_angle
 
@@ -391,10 +356,8 @@ def subscribe_to_viewport_shading_changes():
             )
 
 
-def _apply_save_file_invariants(scene: bpy.types.Scene) -> None:
-    """Invariants enforced on every load_post: msgbus subscription, IFC owner
-    settings, scene-bound caches, draft-flag healing, multi-instance lock probe,
-    and previews discarded so saved preview state never resurfaces on reopen."""
+@persistent
+def load_post(scene):
     global global_subscription_owner
     active_object_key = bpy.types.LayerObjects, "active"
     bpy.msgbus.subscribe_rna(
@@ -405,24 +368,6 @@ def _apply_save_file_invariants(scene: bpy.types.Scene) -> None:
     ifcopenshell.api.owner.settings.get_application = get_application
     AuthoringData.type_thumbnails = {}
 
-    tool.Parametric.heal_stale_edit_flags()
-    discard_pending_previews(scene)
-
-    if tool.Ifc.get() and bpy.data.is_saved:
-        props = tool.Blender.get_bim_props()
-        props.has_blend_warning = True
-
-    # Probe the H5 cooked-geometry cache so the multi-instance warning surfaces
-    # right after .blend load. Without this, the lock is only detected when a
-    # mutation triggers ``clear_cache`` — by which time the user has already
-    # made changes that may now conflict with the other Blender instance.
-    if tool.Ifc.get():
-        get_cache_or_detect_lock()
-
-
-def _apply_user_preferences() -> None:
-    """User-preference-driven UI setup: toolbar, BIM workspace, viewport shading
-    subscription, scene-panel hijack, tab layout, snap defaults."""
     preferences = tool.Blender.get_addon_preferences()
     if not preferences.should_setup_toolbar:
         tool.Blender.unregister_toolbar()
@@ -446,21 +391,11 @@ def _apply_user_preferences() -> None:
         tool.Blender.override_scene_panel(panel)
     tool.Blender.setup_tabs()
 
-    if preferences.should_use_snap and (scene := bpy.context.scene):
-        # Snapping is off by default in Blender, but in BIM, it's more useful to be on
-        scene.tool_settings.use_snap = True
-        # Match default Bonsai snaps
-        scene.tool_settings.snap_elements_base = {"EDGE", "EDGE_PERPENDICULAR", "VERTEX", "EDGE_MIDPOINT", "FACE"}
+    if tool.Ifc.get() and bpy.data.is_saved:
+        props = tool.Blender.get_bim_props()
+        props.has_blend_warning = True
 
-    tool.Blender.sync_old_preferences()
-
-
-def _install_viewport_overlays() -> None:
-    """Sync every Bonsai viewport decorator to its enabled state.
-
-    Wrapped in uninstall/install of the decorator-cache bump handlers so a
-    decorator's own install path doesn't double-bind to depsgraph_update_post
-    via ``TokenCache`` instances created during their own ``install()``."""
+    # Bonsai overlays
     georeference_props = tool.Georeference.get_georeference_props()
     aggregate_props = tool.Aggregate.get_aggregate_props()
     nest_props = tool.Nest.get_nest_props()
@@ -470,31 +405,23 @@ def _install_viewport_overlays() -> None:
     NestDecorator.uninstall()
     WallAxisDecorator.uninstall()
     SlabDirectionDecorator.uninstall()
-    WallFilletPreviewDecorator.uninstall()
-    uninstall_decorator_cache_handlers()
-    try:
-        if georeference_props.should_visualise:
-            GeoreferenceDecorator.install(bpy.context)
-        if aggregate_props.aggregate_decorator:
-            AggregateDecorator.install(bpy.context)
-        if nest_props.nest_decorator:
-            NestDecorator.install(bpy.context)
-        if model_props.show_wall_axis:
-            WallAxisDecorator.install(bpy.context)
-        if model_props.show_slab_direction:
-            SlabDirectionDecorator.install(bpy.context)
-        if model_props.show_bounding_box:
-            BoundingBoxDecorator.install(bpy.context)
-        # Always-installed: draw() self-polls on Scene.BIMPreviewProperties.
-        # wall_fillet.is_active, so installation has no cost when no preview
-        # is open. No corresponding addon-preference toggle.
-        WallFilletPreviewDecorator.install(bpy.context)
-    finally:
-        install_decorator_cache_handlers()
+    if georeference_props.should_visualise:
+        GeoreferenceDecorator.install(bpy.context)
+    if aggregate_props.aggregate_decorator:
+        AggregateDecorator.install(bpy.context)
+    if nest_props.nest_decorator:
+        NestDecorator.install(bpy.context)
+    if model_props.show_wall_axis:
+        WallAxisDecorator.install(bpy.context)
+    if model_props.show_slab_direction:
+        SlabDirectionDecorator.install(bpy.context)
+    if model_props.show_bounding_box:
+        BoundingBoxDecorator.install(bpy.context)
 
+    if preferences.should_use_snap and (scene := bpy.context.scene):
+        # Snapping is off by default in Blender, but in BIM, it's more useful to be on
+        scene.tool_settings.use_snap = True
+        # Match default Bonsai snaps
+        scene.tool_settings.snap_elements_base = {"EDGE", "EDGE_PERPENDICULAR", "VERTEX", "EDGE_MIDPOINT", "FACE"}
 
-@persistent
-def load_post(scene):
-    _apply_save_file_invariants(scene)
-    _apply_user_preferences()
-    _install_viewport_overlays()
+    tool.Blender.sync_old_preferences()

src/bonsai/bonsai/bim/helper.py

@@ -187,7 +187,7 @@ def import_attributes(
         info = {a.name(): None for a in attributes}
         info["type"] = element
     else:
-        assert (entity := element.wrapped_data.declaration().as_entity())
+        assert (entity := element.declaration().as_entity())
         attributes = entity.all_attributes()
         info = element.get_info()
     for attribute in attributes:

src/bonsai/bonsai/bim/ifc.py

@@ -18,9 +18,7 @@
 
 from __future__ import annotations
 
-import hashlib
 import os
-import shutil
 import tempfile
 import traceback
 import uuid
@@ -31,7 +29,6 @@ from typing import Literal, NotRequired, Optional, TypedDict, Union
 
 import bpy
 import ifcopenshell
-import ifcopenshell.geom
 import ifcopenshell.ifcopenshell_wrapper
 from ifcopenshell.file import UndoSystemError
 
@@ -64,44 +61,6 @@ class TransactionStep(TypedDict):
     operations: list[Operation]
 
 
-# Set when ``IfcStore.get_cache`` observes an external lock on the HDF5 cache —
-# signal that another Blender process has the same IFC file open. Project panel
-# polls ``is_cache_locked_by_other_process`` to warn the user. The dismissed
-# flag is sticky per-session so the warning doesn't re-nag once the user has
-# acknowledged it.
-_cache_locked_by_other_process: bool = False
-_multi_instance_warning_dismissed: bool = False
-
-
-def is_cache_locked_by_other_process() -> bool:
-    return _cache_locked_by_other_process and not _multi_instance_warning_dismissed
-
-
-def dismiss_multi_instance_warning() -> None:
-    global _multi_instance_warning_dismissed
-    _multi_instance_warning_dismissed = True
-
-
-def get_cache_or_detect_lock() -> ifcopenshell.geom.serializers.hdf5 | None:
-    """Like ``IfcStore.get_cache`` but tracks the multi-instance lock flag — sets
-    it on ``PermissionError``, clears it (along with the dismiss flag) when a
-    subsequent call succeeds. Returns ``None`` on lock; other exceptions
-    propagate. Callers that don't need the warning side effect can use
-    ``IfcStore.get_cache`` directly."""
-    global _cache_locked_by_other_process, _multi_instance_warning_dismissed
-    try:
-        cache = IfcStore.get_cache()
-    except PermissionError:
-        _cache_locked_by_other_process = True
-        return None
-    if _cache_locked_by_other_process:
-        # Lock released — clear both flags so a future re-locking re-surfaces
-        # the warning rather than staying suppressed by the previous dismiss.
-        _cache_locked_by_other_process = False
-        _multi_instance_warning_dismissed = False
-    return cache
-
-
 class IfcStore:
     path: str = ""
     """Should be set only using ``tool.Ifc.set_path``."""
@@ -110,8 +69,6 @@ class IfcStore:
     """Should be set only using ``tool.Ifc.set``."""
 
     schema: Optional[ifcopenshell.ifcopenshell_wrapper.schema_definition] = None
-    cache: Optional[ifcopenshell.ifcopenshell_wrapper.HdfSerializer] = None
-    cache_path: Optional[str] = None
     id_map: dict[int, IFC_CONNECTED_TYPE] = {}
     guid_map: dict[str, IFC_CONNECTED_TYPE] = {}
     edited_objs: set[bpy.types.Object] = set()
@@ -133,8 +90,6 @@ class IfcStore:
         IfcStore.path = ""
         IfcStore.file = None
         IfcStore.schema = None
-        IfcStore.cache = None
-        IfcStore.cache_path = None
         IfcStore.id_map = {}
         IfcStore.guid_map = {}
         IfcStore.edited_objs = set()
@@ -168,74 +123,6 @@ class IfcStore:
         if IfcStore.path and not os.path.isabs(IfcStore.path):
             IfcStore.path = os.path.abspath(os.path.join(bpy.path.abspath("//"), IfcStore.path))
 
-    @staticmethod
-    def generate_cache_path() -> str:
-        """Generate cache path based on the active file and it's path."""
-        assert IfcStore.file
-        ifc_key = IfcStore.path + IfcStore.file.header.file_name.time_stamp
-        ifc_hash = hashlib.md5(ifc_key.encode("utf-8")).hexdigest()
-        prefs = tool.Blender.get_addon_preferences()
-        cache_path = os.path.join(prefs.cache_dir, f"{ifc_hash}.h5")
-        return cache_path
-
-    @staticmethod
-    def get_cache() -> ifcopenshell.geom.serializers.hdf5 | None:
-        """Get existing cache for the current file or create a new one.
-
-        .h5 cache name reflects IFC filepath and it's current header's timestamp.
-        """
-        if IfcStore.cache is None and IfcStore.path:
-            cache_path = IfcStore.generate_cache_path()
-            os.makedirs(os.path.dirname(cache_path), exist_ok=True)
-            IfcStore.cache_path = cache_path
-            cache_path = Path(IfcStore.cache_path)
-            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, cache_settings, serializer_settings
-                )
-                if cache_preexists:
-                    print(f"Successfully loaded existing cache: {cache_path.name}.")
-                else:
-                    print("New cache was created.")
-            except Exception as e:
-                if cache_preexists:
-                    print(f"Failed to create a cache from existing file '{cache_path.name}': {str(e)}.")
-                else:
-                    print(f"Failed to create a cache: {str(e)}.")
-                    # No point to trying again the same operation.
-                    return
-
-                os.remove(IfcStore.cache_path)
-                try:
-                    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)}.")
-                    return
-        return IfcStore.cache
-
-    @staticmethod
-    def update_cache() -> None:
-        """Update cache filename after timestamp was updated."""
-        if not IfcStore.cache:
-            return
-        assert IfcStore.cache_path
-        new_cache_path = IfcStore.generate_cache_path()
-        IfcStore.cache = None
-        try:
-            shutil.move(IfcStore.cache_path, new_cache_path)
-        except PermissionError:
-            try:
-                shutil.copy2(IfcStore.cache_path, new_cache_path)
-            except PermissionError:
-                pass  # Well we tried. No cache for you!
-        get_cache_or_detect_lock()
-
     @staticmethod
     def load_file(path: str) -> None:
         if not os.path.isfile(path):
@@ -552,7 +439,6 @@ class IfcStore:
                     BrickStore.end_transaction()
                 IfcStore.end_transaction(operator)
                 bonsai.bim.handler.refresh_ui_data()
-                tool.Parametric.refresh_post_commit()
 
                 if method == "MODAL":
                     cls.modal_in_progress = False

src/bonsai/bonsai/bim/import_ifc.py

@@ -721,10 +721,6 @@ class IfcImporter:
             iterator = ifcopenshell.geom.iterator(
                 settings, self.file, include=products, geometry_library=self.ifc_import_settings.geometry_library
             )
-        if self.ifc_import_settings.should_cache:
-            cache = IfcStore.get_cache()
-            if cache:
-                iterator.set_cache(cache)
         valid_file = iterator.initialize()
         if not valid_file:
             return results
@@ -1267,7 +1263,6 @@ class IfcImportSettings:
         self.should_merge_materials_by_colour = False
         self.should_load_geometry = True
         self.should_clean_mesh = False
-        self.should_cache = True
         self.deflection_tolerance = 0.05  # Default is 0.001, but I find this to be more practical
         self.angular_tolerance = 0.5
         self.void_limit = 30
@@ -1295,7 +1290,6 @@ class IfcImportSettings:
         context=None, input_file: Optional[str] = None, logger: Optional[logging.Logger] = None
     ) -> IfcImportSettings:
         scene_diff = tool.Blender.get_diff_props()
-        prefs = tool.Blender.get_addon_preferences()
         props = tool.Project.get_project_props()
         settings = IfcImportSettings()
         settings.input_file = input_file
@@ -1308,7 +1302,6 @@ class IfcImportSettings:
         settings.should_merge_materials_by_colour = props.should_merge_materials_by_colour
         settings.should_load_geometry = props.should_load_geometry
         settings.should_clean_mesh = props.should_clean_mesh
-        settings.should_cache = prefs.should_always_cache or props.should_cache
         settings.deflection_tolerance = props.deflection_tolerance
         settings.angular_tolerance = props.angular_tolerance
         settings.void_limit = props.void_limit

src/bonsai/bonsai/bim/module/aggregate/prop.py

@@ -139,7 +139,6 @@ class BIMAggregateProperties(PropertyGroup):
     previous_editing_aggregate: PointerProperty(name="Editing Aggregate", type=bpy.types.Object)
     editing_objects: CollectionProperty(type=Objects)
     not_editing_objects: CollectionProperty(type=Objects)
-    previously_selected_objects: CollectionProperty(type=Objects)
     aggregate_decorator: BoolProperty(
         name="Display Aggregate",
         default=False,
@@ -156,6 +155,5 @@ class BIMAggregateProperties(PropertyGroup):
         previous_editing_aggregate: Union[bpy.types.Object, None]
         editing_objects: bpy.types.bpy_prop_collection_idprop[Objects]
         not_editing_objects: bpy.types.bpy_prop_collection_idprop[Objects]
-        previously_selected_objects: bpy.types.bpy_prop_collection_idprop[Objects]
         aggregate_decorator: bool
         previous_state: bool

src/bonsai/bonsai/bim/module/attribute/ui.py

@@ -48,14 +48,12 @@ def draw_ui(context: bpy.types.Context, layout: bpy.types.UILayout, attributes)
         row = layout.row()
         op = row.operator("bim.enable_editing_attributes", icon="GREASEPENCIL", text="Edit")
 
-        element = tool.Ifc.get_entity(obj)
-        key_prefix = "type." if (element and element.is_a("IfcTypeObject")) else ""
         for attribute in attributes:
             row = layout.row(align=True)
             row.label(text=attribute["name"])
             value = bonsai.bim.helper.get_display_value(attribute["value"])
             op = row.operator("bim.select_similar", text=value, icon="NONE", emboss=False)
-            op.key = key_prefix + attribute["name"]
+            op.key = attribute["name"]
 
     # TODO: reimplement, see #1222
     # if "IfcSite/" in context.active_object.name or "IfcBuilding/" in context.active_object.name:

src/bonsai/bonsai/bim/module/cost/data.py

@@ -206,7 +206,7 @@ class CostSchedulesData:
                 data["UnitSymbol"] = ifcopenshell.util.unit.get_unit_symbol(unit)
             if quantity.is_a("IfcPhysicalSimpleQuantity"):
                 measure_class = (
-                    quantity.wrapped_data.declaration()
+                    quantity.declaration()
                     .as_entity()
                     .attribute_by_index(3)
                     .type_of_attribute()

src/bonsai/bonsai/bim/module/debug/__init__.py

@@ -37,7 +37,6 @@ classes = (
     operator.PrintObjectPlacement,
     operator.PrintUnusedElementStats,
     operator.ProfileImportIFC,
-    operator.PurgeHdf5Cache,
     operator.PurgeUnusedElementsByClass,
     operator.PurgeUnusedObjects,
     operator.RestartBlender,

src/bonsai/bonsai/bim/module/debug/operator.py

@@ -90,7 +90,7 @@ class PrintIfcFile(bpy.types.Operator):
         return tool.Ifc.get()
 
     def execute(self, context):
-        print(tool.Ifc.get().wrapped_data.to_string())
+        print(tool.Ifc.get().to_string())
         return {"FINISHED"}
 
 
@@ -570,17 +570,6 @@ class SelectExpressFile(bpy.types.Operator, ImportHelper):
         return {"FINISHED"}
 
 
-class PurgeHdf5Cache(bpy.types.Operator):
-    bl_idname = "bim.purge_hdf5_cache"
-    bl_label = "Purge HDF5 Cache"
-    bl_description = "Clean up HDF5 cache files except the ones that currently loaded"
-
-    def execute(self, context):
-        core.purge_hdf5_cache(tool.Debug)
-        self.report({"INFO"}, "HDF5 cache purged.")
-        return {"FINISHED"}
-
-
 class OverrideDisplayType(bpy.types.Operator):
     bl_idname = "bim.override_display_type"
     bl_label = "Override Display Type"

src/bonsai/bonsai/bim/module/debug/ui.py

@@ -64,9 +64,6 @@ class BIM_PT_debug(Panel):
         row = layout.row()
         row.operator("bim.copy_debug_information")
 
-        row = layout.row()
-        row.operator("bim.purge_hdf5_cache")
-
         row = layout.row()
         row.operator("bim.update_representation", text="Manually Save Representation")
 

src/bonsai/bonsai/bim/module/drawing/__init__.py

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import bpy
 
@@ -138,32 +136,14 @@ classes = (
     gizmos.GizmoArrow2D,
     gizmos.GizmoCone,
     gizmos.GizmoDimension,
-    gizmos.GizmoLockOpen,
-    gizmos.GizmoLockClosed,
+    gizmos.GizmoLock,
     gizmos.GizmoArc,
-    gizmos.GizmoFillet,
-    gizmos.GizmoWallCornerIcon,
-    gizmos.GizmoWallTeeIcon,
     gizmos.GizmoPen,
     gizmos.GizmoValidate,
     gizmos.GizmoCancel,
     gizmos.GizmoPlus,
     gizmos.GizmoMinus,
-    gizmos.GizmoTrash,
-    gizmos.GizmoArrayParent,
-    gizmos.GizmoArrayAll,
-    gizmos.GizmoArrayLayerIndicator,
-    gizmos.GizmoMerge,
-    gizmos.GizmoSplit,
-    gizmos.GizmoUnjoin,
-    gizmos.GizmoExtend,
-    gizmos.GizmoExtendVertical,
-    gizmos.GizmoOffsetExterior,
-    gizmos.GizmoOffsetCenter,
-    gizmos.GizmoOffsetInterior,
-    gizmos.GizmoAddOpening,
     gizmos.GizmoCycle,
-    gizmos.GizmoMenu,
     # Drawing-specific gizmos
     gizmos.UglyDotGizmo,
     gizmos.ExtrusionGuidesGizmo,

src/bonsai/bonsai/bim/module/drawing/helper.py

@@ -313,7 +313,7 @@ def format_distance(
             if not feet and not add_inches:
                 tx_dist += str(feet) + "'"
 
-            if not feet and add_inches and unit_length != "INCHES":
+            if not feet and add_inches:
                 if value < 0:
                     tx_dist += "-0' - "
                 else:

src/bonsai/bonsai/bim/module/drawing/operator.py

@@ -16,7 +16,6 @@
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
 
-import hashlib
 import json
 import logging
 import multiprocessing
@@ -901,10 +900,7 @@ class CreateDrawing(bpy.types.Operator):
                 # All very hackish whilst prototyping
                 exporter = bonsai.bim.export_ifc.IfcExporter(None)
                 exporter.file = tool.Ifc.get()
-                invalidated_elements = exporter.sync_all_objects()
-                invalidated_guids = [e.GlobalId for e in invalidated_elements if hasattr(e, "GlobalId")]
-                if cache := IfcStore.get_cache():
-                    [cache.remove(guid) for guid in invalidated_guids]
+                exporter.sync_all_objects()
 
         # If we have already calculated it in the SVG in the past, don't recalculate
         edited_guids = set()
@@ -922,7 +918,6 @@ class CreateDrawing(bpy.types.Operator):
         cached_linework -= edited_guids
 
         bim_props = tool.Blender.get_bim_props()
-        prefs = tool.Blender.get_addon_preferences()
         files = {bim_props.ifc_file: tool.Ifc.get()}
 
         props = tool.Project.get_project_props()
@@ -935,12 +930,8 @@ class CreateDrawing(bpy.types.Operator):
         tree = ifcopenshell.geom.tree()
         tree.enable_face_styles(True)
 
-        for ifc_path, ifc in files.items():
+        for ifc in files.values():
             # Don't use draw.main() just whilst we're prototyping and experimenting
-            # TODO: hash paths are never used
-            ifc_hash = hashlib.md5(ifc_path.encode("utf-8")).hexdigest()
-            ifc_cache_path = os.path.join(prefs.cache_dir, f"{ifc_hash}.h5")
-
             self.serialiser.setFile(ifc)
             drawing_elements = tool.Drawing.get_drawing_elements(self.camera_element, ifc_file=ifc)
 

src/bonsai/bonsai/bim/module/geometry/data.py

@@ -44,12 +44,8 @@ class ViewportData:
 
     @classmethod
     def load(cls):
-        # Populate data BEFORE flipping is_loaded so a raising ``mode()``
-        # call doesn't leave the class half-loaded (flag set, dict empty).
-        # Subsequent items-callback invocations skip load() on a True flag
-        # and would hit ``cls.data["mode"]`` → KeyError.
-        cls.data = {"mode": cls.mode()}
         cls.is_loaded = True
+        cls.data = {"mode": cls.mode()}
 
     @classmethod
     def mode(cls) -> tool.Blender.BLENDER_ENUM_ITEMS:

src/bonsai/bonsai/bim/module/geometry/operator.py

@@ -60,7 +60,6 @@ import bonsai.core.root
 import bonsai.core.spatial
 import bonsai.tool as tool
 from bonsai.bim.ifc import IfcStore
-from bonsai.bim.module.model import preview_base
 from bonsai.bim.module.model.decorator import ProfileDecorator
 
 if TYPE_CHECKING:
@@ -577,9 +576,6 @@ class UpdateRepresentation(bpy.types.Operator, tool.Ifc.Operator):
                 self.report({"ERROR"}, f"Object '{obj.name}' has openings - representation cannot be updated.")
             return
 
-        if not product.is_a("IfcGridAxis"):
-            tool.Geometry.clear_cache(product)
-
         if product.is_a("IfcGridAxis"):
             # Grid geometry does not follow the "representation" paradigm and needs to be treated specially
             tool.Model.create_axis_curve(obj, product)
@@ -791,7 +787,7 @@ def lock_error_message(name: str) -> str:
 
 
 def calc_delete_is_batch(ifc_file: ifcopenshell.file, context: bpy.types.Context) -> bool:
-    total_elements = len(tool.Ifc.get().wrapped_data.entity_names())
+    total_elements = len(tool.Ifc.get().entity_names())
     total_polygons = sum([len(o.data.polygons) for o in context.selected_objects if o.type == "MESH"])
     # These numbers are a bit arbitrary, but basically batching is only
     # really necessary on large models and large geometry removals.
@@ -1184,7 +1180,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
         operator: bpy.types.Operator, context: bpy.types.Context, linked: bool = False
     ) -> set["rna_enums.OperatorReturnItems"]:
         # Deep magick from the dawn of time
-        if tool.Ifc.get() and tool.Model.has_selected_ifc_objects(include_active=False):
+        if tool.Ifc.get():
             IfcStore.execute_ifc_operator(operator, context)
             return {"FINISHED"}
 
@@ -1288,11 +1284,6 @@ class OverrideDuplicateMove(bpy.types.Operator):
                             if part_obj:
                                 all_objects_to_select.add(part_obj)
 
-        # Non-IFC duplicates aren't tracked in old_to_new but are left selected by duplicate_ifc_objects
-        all_objects_to_select.update(
-            obj for obj in context.selected_objects if not tool.Ifc.get_entity(obj)
-        )
-
         # Deselect everything first
         bpy.ops.object.select_all(action="DESELECT")
 
@@ -2229,8 +2220,6 @@ class OverrideEscape(bpy.types.Operator):
             bpy.ops.bim.hide_all_openings()
         elif tool.Aggregate.get_aggregate_props().in_aggregate_mode:
             bpy.ops.bim.disable_aggregate_mode()
-        elif preview_base.try_cancel_active_preview(context):
-            pass
         elif active_object := context.active_object:
             if tool.Blender.Modifier.try_canceling_editing_modifier_parameters_or_path(active_object):
                 pass
@@ -2272,8 +2261,6 @@ class OverrideModeSetEdit(bpy.types.Operator, tool.Ifc.Operator):
                 gprops = tool.Geometry.get_geometry_props()
                 if gprops.representation_obj:
                     tool.Geometry.disable_item_mode()
-                    if active_obj := bpy.context.active_object:
-                        active_obj.select_set(False)
                 else:
                     bonsai.core.aggregate.exit_aggregate_mode(tool.Aggregate)
                 return {"FINISHED"}
@@ -2360,7 +2347,6 @@ class OverrideModeSetEdit(bpy.types.Operator, tool.Ifc.Operator):
             and usage in ("LAYER1", "LAYER2")
         ):
             self.report({"INFO"}, f"Parametric {usage} elements cannot be edited directly")
-            obj.select_set(False)
         elif item.is_a("IfcSweptAreaSolid"):
             tool.Geometry.sync_item_positions()
             res = tool.Model.import_profile((profile := item.SweptArea), obj=obj)
@@ -2369,7 +2355,6 @@ class OverrideModeSetEdit(bpy.types.Operator, tool.Ifc.Operator):
                     {"INFO"},
                     f"Couldn't import profile, editing it directly is not yet supported. Failing profile: {profile}.",
                 )
-                obj.select_set(False)
                 return
             tool.Ifc.link(item, obj.data)
             self.enable_edit_mode(context)

src/bonsai/bonsai/bim/module/geometry/ui.py

@@ -19,7 +19,6 @@
 import bpy
 from bpy.types import Menu, Panel, UIList
 
-import ifcopenshell.util.unit
 import bonsai.bim
 import bonsai.tool as tool
 from bonsai.bim.helper import prop_with_search
@@ -484,32 +483,10 @@ class BIM_PT_placement(Panel):
             row.label(text="No Object Placement Found")
             return
 
-        is_imperial = False
-        if tool.Ifc.get():
-            length_unit = ifcopenshell.util.unit.get_project_unit(tool.Ifc.get(), "LENGTHUNIT")
-            if length_unit and length_unit.Name != "METRE":
-                is_imperial = True
-
         row = self.layout.row()
-        row.label(text="Location:")
-
-        if is_imperial:
-            loc = context.active_object.location
-            for i, (axis, comp) in enumerate(zip("XYZ", (loc.x, loc.y, loc.z))):
-                split = self.layout.split(factor=0.6)
-                split.prop(context.active_object, "location", index=i, text=axis)
-                sub = split.row()
-                sub.enabled = False
-                sub.alignment = "LEFT"
-                sub.label(text=tool.Unit.format_distance(comp))
-        else:
-            for i, axis in enumerate("XYZ"):
-                self.layout.prop(context.active_object, "location", index=i, text=axis)
-
+        row.prop(context.active_object, "location", text="Location")
         row = self.layout.row()
-        row.label(text="Rotation:")
-        for i, axis in enumerate("XYZ"):
-            self.layout.prop(context.active_object, "rotation_euler", index=i, text=axis)
+        row.prop(context.active_object, "rotation_euler", text="Rotation")
 
         if props.blender_offset_type != "NONE":
             row = self.layout.row(align=True)

src/bonsai/bonsai/bim/module/material/operator.py

@@ -630,23 +630,13 @@ class EditAssignedMaterial(bpy.types.Operator, tool.Ifc.Operator):
                     slab.DumbSlabPlaner().regenerate_from_layer_set(layer_set)
 
             if material_set_usage.is_a("IfcMaterialProfileSetUsage"):
-                if "CardinalPoint" in attributes and attributes["CardinalPoint"] is not None:
+                if "CardinalPoint" in attributes:
                     attributes["CardinalPoint"] = int(attributes["CardinalPoint"])
                 ifcopenshell.api.material.edit_profile_usage(
                     self.file,
                     usage=material_set_usage,
                     attributes=attributes,
                 )
-
-                for obj in objects:
-                    obj_element = tool.Ifc.get_entity(obj)
-                    if not obj_element:
-                        continue
-                    obj_material_usage = ifcopenshell.util.element.get_material(obj_element)
-                    if obj_material_usage and obj_material_usage.is_a("IfcMaterialProfileSetUsage"):
-                        obj_material_usage.CardinalPoint = material_set_usage.CardinalPoint
-                        obj_material_usage.ReferenceExtent = material_set_usage.ReferenceExtent
-
                 model_profile.DumbProfileRecalculator().recalculate(objects)
 
         bpy.ops.bim.disable_editing_assigned_material(obj=active_obj.name)

src/bonsai/bonsai/bim/module/model/__init__.py

@@ -15,15 +15,11 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 from typing import NamedTuple
 
 import bpy
 
-import bonsai.tool as tool
-
 from . import (
     array,
     covering,
@@ -61,8 +57,6 @@ classes = (
     array.Input3DCursorXArray,
     array.Input3DCursorYArray,
     array.Input3DCursorZArray,
-    array.EnableEditingParametric,
-    array.AddArrayFromFeatureEdit,
     product.AddDefaultType,
     product.AddEmptyType,
     product.AddOccurrence,
@@ -76,43 +70,19 @@ classes = (
     workspace.BIM_MT_add_representation_item,
     wall.AddWallsFromSlab,
     wall.AlignWall,
-    wall.CancelEditingWall,
     wall.ChangeExtrusionDepth,
     wall.ChangeExtrusionXAngle,
     wall.ChangeLayerLength,
-    wall.CycleWallOffset,
     wall.DrawPolylineWall,
-    wall.EnableEditingWall,
-    wall.ExtendWallHeightToCursor,
     wall.ExtendWallsToUnderside,
-    wall.RegenerateWallToUnderside,
     wall.ExtendWallsToWall,
     wall.ExtendWallsToPolylinePoint,
-    wall.ExtendWallToCursor,
-    wall.FinishEditingWall,
     wall.FlipWall,
-    wall.GizmoWallAddOpening,
-    wall.GizmoWallEdition,
-    wall.GizmoWallExtendVertically,
-    wall.GizmoWallFilletPreview,
-    wall.GizmoWallFilletReedit,
-    wall.GizmoWallJoinIntersection,
-    wall.GizmoWallUnjoinSingle,
-    wall.JoinWallsIntersection,
     wall.MergeWall,
     wall.OffsetWalls,
     wall.RecalculateWall,
-    wall.RotateWall90,
     wall.SplitWall,
-    wall.SplitWallAtCursor,
-    wall.ToggleWallOpenings,
-    wall.UnjoinWallPathConnection,
     wall.UnjoinWalls,
-    wall.EnableWallFilletPreview,
-    wall.FinishWallFilletPreview,
-    wall.CancelWallFilletPreview,
-    wall.EnableWallFilletPreviewFromCorner,
-    wall.CreateWallFillet,
     opening.AddBoolean,
     opening.CloneOpening,
     opening.EditOpenings,
@@ -170,14 +140,10 @@ classes = (
     prop.BIMDoorProperties,
     prop.BIMRailingProperties,
     prop.BIMRoofProperties,
-    prop.BIMWallProperties,
     prop.BIMPolylineProperties,
     prop.BIMExternalParametricGeometryProperties,
-    prop.BIMWallFilletPreviewProperties,
-    prop.BIMPreviewProperties,
     ui.BIM_PT_array,
     ui.BIM_PT_stair,
-    ui.BIM_PT_wall,
     ui.BIM_PT_sverchok,
     ui.BIM_PT_window,
     ui.BIM_PT_door,
@@ -298,14 +264,15 @@ def register():
     bpy.types.Scene.BIMModelProperties = bpy.props.PointerProperty(type=prop.BIMModelProperties)
     bpy.types.Scene.BIMPolylineProperties = bpy.props.PointerProperty(type=prop.BIMPolylineProperties)
     bpy.types.Object.BIMArrayProperties = bpy.props.PointerProperty(type=prop.BIMArrayProperties)
+    bpy.types.Object.BIMStairProperties = bpy.props.PointerProperty(type=prop.BIMStairProperties)
     bpy.types.Object.BIMSverchokProperties = bpy.props.PointerProperty(type=prop.BIMSverchokProperties)
-    # Per-parametric-type ``BIM<Name>Properties`` PointerProperties — driven by
-    # ``tool.Parametric.EDIT_TYPES``; adding a registry entry is the single touchpoint.
-    tool.Parametric.register_object_properties(prop)
+    bpy.types.Object.BIMWindowProperties = bpy.props.PointerProperty(type=prop.BIMWindowProperties)
+    bpy.types.Object.BIMDoorProperties = bpy.props.PointerProperty(type=prop.BIMDoorProperties)
+    bpy.types.Object.BIMRailingProperties = bpy.props.PointerProperty(type=prop.BIMRailingProperties)
+    bpy.types.Object.BIMRoofProperties = bpy.props.PointerProperty(type=prop.BIMRoofProperties)
     bpy.types.Object.BIMExternalParametricGeometryProperties = bpy.props.PointerProperty(
         type=prop.BIMExternalParametricGeometryProperties
     )
-    bpy.types.Scene.BIMPreviewProperties = bpy.props.PointerProperty(type=prop.BIMPreviewProperties)
 
     bpy.types.VIEW3D_MT_add.prepend(ui.add_menu)
     bpy.app.handlers.load_post.append(handler.load_post)
@@ -314,12 +281,6 @@ def register():
 
 
 def unregister():
-    # DecorationsHandler is installed lazily by bim.show_openings; tear it down
-    # (along with its persistent depsgraph / undo / redo / load cache handlers)
-    # before the rest of unregister so those handlers can't fire against
-    # half-unloaded module state.
-    opening.DecorationsHandler.uninstall()
-
     if not bpy.app.background:
         for tool_data in reversed(tools):
             bpy.utils.unregister_tool(tool_data.tool)
@@ -327,10 +288,13 @@ def unregister():
     del bpy.types.Scene.BIMModelProperties
     del bpy.types.Scene.BIMPolylineProperties
     del bpy.types.Object.BIMArrayProperties
+    del bpy.types.Object.BIMStairProperties
     del bpy.types.Object.BIMSverchokProperties
-    tool.Parametric.unregister_object_properties()
+    del bpy.types.Object.BIMWindowProperties
+    del bpy.types.Object.BIMDoorProperties
+    del bpy.types.Object.BIMRailingProperties
+    del bpy.types.Object.BIMRoofProperties
     del bpy.types.Object.BIMExternalParametricGeometryProperties
-    del bpy.types.Scene.BIMPreviewProperties
 
     bpy.app.handlers.load_post.remove(handler.load_post)
     bpy.types.VIEW3D_MT_add.remove(ui.add_menu)

src/bonsai/bonsai/bim/module/model/array.py

@@ -379,129 +379,3 @@ class Input3DCursorZArray(bpy.types.Operator):
         else:
             props.z = cursor.location.z - obj.location.z
         return {"FINISHED"}
-
-
-class EnableEditingParametric(bpy.types.Operator):
-    """Pen-icon dispatcher: fires the gizmo group's per-feature edit operator.
-
-    Bound to every parametric gizmo group's pen icon. The gizmo group's own
-    ``enable_editing_operator`` (``bim.enable_editing_door``, ``…_wall``, …)
-    is passed as ``feature_enable_op`` at setup time and invoked here. The
-    indirection lets one gizmo class serve all features without per-feature
-    subclasses."""
-
-    bl_idname = "bim.enable_editing_parametric"
-    bl_label = "Enable Editing"
-    bl_description = "Edit this object's parameters"
-    bl_options = {"REGISTER", "UNDO"}
-
-    feature_enable_op: bpy.props.StringProperty(
-        default="",
-        description="Operator bl_idname to invoke (e.g., 'bim.enable_editing_door').",
-    )
-
-    def execute(self, context):
-        # Malformed ``feature_enable_op`` (missing dot) would otherwise crash
-        # the unpack with ValueError; treat the same as the empty-string case.
-        parts = self.feature_enable_op.split(".", 1)
-        if len(parts) != 2:
-            return {"CANCELLED"}
-        domain, opname = parts
-        return getattr(getattr(bpy.ops, domain), opname)("INVOKE_DEFAULT")
-
-
-class AddArrayFromFeatureEdit(bpy.types.Operator, tool.Ifc.Operator):
-    """Commit any in-progress feature edit and add an array with
-    gizmo-friendly defaults (count=2, offset = bbox extent along the axis).
-
-    Modifier-aware: plain click → X, Shift → Y, Ctrl → Z. Callers can pass
-    ``axis="X"`` via EXEC_DEFAULT to bypass the modifier read.
-
-    All three chained operators (feature finish + add_array + enable_editing)
-    run inside one transaction for a single undo step."""
-
-    bl_idname = "bim.add_array_from_feature_edit"
-    bl_label = "Add Array"
-    bl_description = (
-        "Click: add an array along X.\n" "Shift+Click: add an array along Y.\n" "Ctrl+Click: add an array along Z"
-    )
-    bl_options = {"REGISTER", "UNDO"}
-
-    axis: bpy.props.EnumProperty(
-        name="Offset Axis",
-        items=[
-            ("X", "X", "Offset along the object's X axis (bbox X extent)"),
-            ("Y", "Y", "Offset along the object's Y axis (bbox Y extent)"),
-            ("Z", "Z", "Offset along the object's Z axis (bbox Z extent)"),
-        ],
-        default="X",
-    )
-
-    # Minimum offset to use when the object's bbox extent is tiny — prevents
-    # the second instance from visually overlapping the parent on small
-    # annotations / openings (0.3m ≈ a clearly-separated next-instance distance).
-    MIN_DEFAULT_OFFSET = 0.3
-
-    def invoke(self, context, event):
-        # Modifier-aware axis pick: X by default, Shift → Y, Ctrl → Z.
-        if event.shift:
-            self.axis = "Y"
-        elif event.ctrl:
-            self.axis = "Z"
-        else:
-            self.axis = "X"
-        return self.execute(context)
-
-    def _execute(self, context):
-        obj = context.active_object
-        if obj is None:
-            return {"CANCELLED"}
-        # Commit any in-progress parametric edit lifecycle on this object first — the
-        # user expects "Add Array" to also finalise whatever they were editing
-        # so they don't lose their draft changes.
-        editing = tool.Parametric.is_object_editing(obj, skip_name="array")
-        if editing is not None:
-            finish_op_name = editing.finish_op.removeprefix("bim.")
-            getattr(bpy.ops.bim, finish_op_name)("INVOKE_DEFAULT")
-        # Bounding-box derived offset along the chosen axis, converted from
-        # Blender SI (meters) to IFC project units (which is what
-        # ``BBIM_Array.Data`` stores; the regenerator multiplies by
-        # unit_scale on the way out).
-        axis_idx = "XYZ".index(self.axis)
-        if obj.bound_box:
-            bbox_extent_si = max(c[axis_idx] for c in obj.bound_box) - min(c[axis_idx] for c in obj.bound_box)
-        else:
-            bbox_extent_si = 1.0
-        bbox_extent_si = max(bbox_extent_si, self.MIN_DEFAULT_OFFSET)
-        si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
-        offset_project = bbox_extent_si / si_conversion if si_conversion else bbox_extent_si
-        add_kwargs = {"count": 2, "x": 0.0, "y": 0.0, "z": 0.0}
-        add_kwargs[self.axis.lower()] = offset_project
-        result = bpy.ops.bim.add_array(**add_kwargs)
-        if result != {"FINISHED"}:
-            return result
-        # Restore selection to just the parent. ``regenerate_array`` calls
-        # ``tool.Geometry.duplicate_ifc_objects`` which leaves the newly-created
-        # child selected alongside the parent. The edit-lifecycle gizmos poll on a
-        # single-selected parent, so with both selected the gizmos wouldn't
-        # surface and "ARRAY → enter edit" would feel broken.
-        tool.Blender.select_and_activate_single_object(context, active_object=obj)
-        # Chain straight into array edit for the newly-added layer (always the
-        # last entry in the pset's Data list, by AddArray's append semantics).
-        # The user's expectation after clicking ARRAY is "I want to tweak this
-        # array now" — entering edit mode immediately collapses the 2-click
-        # discover-then-edit flow into one.
-        element = tool.Ifc.get_entity(obj)
-        if element is None:
-            return {"FINISHED"}
-        data_text = ifcopenshell.util.element.get_pset(element, "BBIM_Array", "Data")
-        if not data_text:
-            return {"FINISHED"}
-        try:
-            layers = json.loads(data_text)
-        except (ValueError, TypeError):
-            return {"FINISHED"}
-        if not layers:
-            return {"FINISHED"}
-        bpy.ops.bim.enable_editing_array("INVOKE_DEFAULT", item=len(layers) - 1)
-        return {"FINISHED"}

src/bonsai/bonsai/bim/module/model/decorator.py

@@ -108,7 +108,7 @@ class ProfileDecorator:
 
         obj = context.active_object
 
-        if obj is None or obj.mode != "EDIT":
+        if obj.mode != "EDIT":
             if exit_edit_mode_callback:
                 ProfileDecorator.uninstall()
                 exit_edit_mode_callback()
@@ -2029,151 +2029,3 @@ class BoundingBoxDecorator:
                         else:
                             co1.y += y_overlap / 2 + min_spacing
                             co2.y -= y_overlap / 2 + min_spacing
-
-
-def _stroke_lines_alpha(
-    context: bpy.types.Context,
-    segments: list[tuple[tuple[float, float, float], tuple[float, float, float]]],
-    color_rgb: tuple[float, float, float],
-    line_width: float,
-    line_alpha: float,
-) -> None:
-    """Render ``segments`` (a list of ``(start, end)`` tuples) as one
-    anti-aliased LINES batch in world space. Early-returns when
-    ``context.region`` is unavailable (e.g. when called from a
-    ``_RestrictContext``)."""
-    if not segments:
-        return
-    verts: list[tuple[float, float, float]] = []
-    indices: list[tuple[int, int]] = []
-    for start, end in segments:
-        base = len(verts)
-        verts.append(tuple(start))
-        verts.append(tuple(end))
-        indices.append((base, base + 1))
-    if not tool.Blender.validate_shader_batch_data(verts, indices):
-        return
-    region = getattr(context, "region", None)
-    if region is None:
-        return
-    shader = gpu.shader.from_builtin("POLYLINE_UNIFORM_COLOR")
-    shader.bind()
-    shader.uniform_float("viewportSize", (region.width, region.height))
-    shader.uniform_float("lineWidth", line_width)
-    shader.uniform_float("color", (*color_rgb, line_alpha))
-    batch = batch_for_shader(shader, "LINES", {"pos": verts}, indices=indices)
-    gpu.state.blend_set("ALPHA")
-    batch.draw(shader)
-    gpu.state.blend_set("NONE")
-
-
-class WallFilletPreviewDecorator(tool.Blender.ViewportDecorator):
-    """GPU preview lines for the wall-fillet flow.
-
-    Polls on ``scene.BIMPreviewProperties.wall_fillet.is_active`` and renders
-    the leg projections + arc + radial construction lines returned by
-    ``tool.Wall.compute_wall_fillet_geometry``. The two leg lines show how
-    each wall will be shortened to its tangent point; the arc approximates
-    the rounded corner; the two construction lines (arc center to each
-    tangent point) visually pin the radius.
-
-    Installed once per Blender session from ``bim/handler.py:load_post``
-    and uninstalled in ``bim/module/model/__init__.py:unregister``."""
-
-    LINE_WIDTH_LEG = 1.5
-    LINE_WIDTH_ARC = 2.5
-    LINE_WIDTH_CONSTRUCTION = 1.0
-    LINE_ALPHA = 0.7
-    CONSTRUCTION_ALPHA = 0.4
-
-    def draw(self, context: bpy.types.Context) -> None:
-        scene = context.scene
-        preview_props = getattr(scene, "BIMPreviewProperties", None)
-        props = preview_props.wall_fillet if preview_props is not None else None
-        if props is None or not props.is_active:
-            return
-        ifc_file = tool.Ifc.get()
-        if ifc_file is None:
-            return
-        try:
-            wall_a = ifc_file.by_id(props.wall_a_id)
-            wall_b = ifc_file.by_id(props.wall_b_id)
-        except Exception:
-            return
-        wall_a_obj = tool.Ifc.get_object(wall_a) if wall_a else None
-        wall_b_obj = tool.Ifc.get_object(wall_b) if wall_b else None
-        if wall_a_obj is None or wall_b_obj is None:
-            return
-
-        geom = tool.Wall.compute_wall_fillet_geometry(wall_a_obj, wall_b_obj, props.radius)
-        if geom is None:
-            return
-
-        prefs = tool.Blender.get_addon_preferences()
-        warning_color = tuple(prefs.decorator_color_error[:3])
-
-        if not geom["valid"]:
-            # Degenerate geometry paints red: invalid_radius shows legs+arc
-            # past the wall ends; invalid_axes shows the parallel/collinear
-            # axes.
-            if geom.get("invalid_radius"):
-                tangent_a = geom.get("tangent_a")
-                tangent_b = geom.get("tangent_b")
-                ref_a = tool.Wall.get_world_reference_line(wall_a_obj)
-                ref_b = tool.Wall.get_world_reference_line(wall_b_obj)
-                if tangent_a is not None and tangent_b is not None and ref_a is not None and ref_b is not None:
-                    far_a = self._far_endpoint(ref_a, geom["intersection"])
-                    far_b = self._far_endpoint(ref_b, geom["intersection"])
-                    legs = [
-                        (tuple(far_a), tuple(tangent_a)),
-                        (tuple(far_b), tuple(tangent_b)),
-                    ]
-                    _stroke_lines_alpha(context, legs, warning_color, self.LINE_WIDTH_LEG, self.LINE_ALPHA)
-                arc = geom.get("arc") or []
-                if len(arc) >= 2:
-                    arc_segments = [(tuple(arc[i]), tuple(arc[i + 1])) for i in range(len(arc) - 1)]
-                    _stroke_lines_alpha(context, arc_segments, warning_color, self.LINE_WIDTH_ARC, self.LINE_ALPHA)
-            elif geom.get("invalid_axes"):
-                axes = geom["invalid_axes"]
-                segments = [(tuple(a), tuple(b)) for a, b in axes]
-                _stroke_lines_alpha(context, segments, warning_color, self.LINE_WIDTH_ARC, self.LINE_ALPHA)
-            return
-
-        leg_color = tuple(prefs.decorations_colour[:3])
-        arc_color = tuple(prefs.decorator_color_selected[:3])
-
-        # Resolved against the IFC reference line, not mesh bounds, so trimmed
-        # walls and openings don't shift the leg endpoints.
-        ref_a = tool.Wall.get_world_reference_line(wall_a_obj)
-        ref_b = tool.Wall.get_world_reference_line(wall_b_obj)
-        if ref_a is not None and ref_b is not None and geom["intersection"] is not None:
-            far_a = self._far_endpoint(ref_a, geom["intersection"])
-            far_b = self._far_endpoint(ref_b, geom["intersection"])
-            legs = [
-                (tuple(far_a), tuple(geom["tangent_a"])),
-                (tuple(far_b), tuple(geom["tangent_b"])),
-            ]
-            _stroke_lines_alpha(context, legs, leg_color, self.LINE_WIDTH_LEG, self.LINE_ALPHA)
-
-        arc = geom["arc"]
-        if len(arc) >= 2:
-            arc_segments = [(tuple(arc[i]), tuple(arc[i + 1])) for i in range(len(arc) - 1)]
-            _stroke_lines_alpha(context, arc_segments, arc_color, self.LINE_WIDTH_ARC, self.LINE_ALPHA)
-
-        # Dim construction lines from arc_center to each tangent point so
-        # the radius reads as concrete during drag.
-        arc_center = geom.get("arc_center")
-        if arc_center is not None:
-            construction = [
-                (tuple(arc_center), tuple(geom["tangent_a"])),
-                (tuple(arc_center), tuple(geom["tangent_b"])),
-            ]
-            _stroke_lines_alpha(context, construction, arc_color, self.LINE_WIDTH_CONSTRUCTION, self.CONSTRUCTION_ALPHA)
-
-    @staticmethod
-    def _far_endpoint(reference_line, intersection):
-        """Endpoint of ``reference_line`` furthest from ``intersection``."""
-        p1, p2 = reference_line
-        d1 = (p1.x - intersection[0]) ** 2 + (p1.y - intersection[1]) ** 2 + (p1.z - intersection[2]) ** 2
-        d2 = (p2.x - intersection[0]) ** 2 + (p2.y - intersection[1]) ** 2 + (p2.z - intersection[2]) ** 2
-        return p2 if d2 >= d1 else p1

src/bonsai/bonsai/bim/module/model/door.py

@@ -38,7 +38,6 @@ import bonsai.tool as tool
 from bonsai.bim.module.drawing import gizmos as gizmo
 from bonsai.bim.module.drawing.gizmos import DimensionGizmoConfig
 from bonsai.bim.module.model.window import create_bm_box, create_bm_window
-from bonsai.bim.parametric_lifecycle import FeatureModifierEditMixin
 
 if TYPE_CHECKING:
     from bonsai.bim.module.model.prop import BIMDoorProperties
@@ -567,58 +566,103 @@ class AddDoor(bpy.types.Operator, tool.Ifc.Operator):
         return {"FINISHED"}
 
 
-class _DoorEditMixin(FeatureModifierEditMixin):
-    """Type-specific hooks for door parametric-edit operators. Multi-object —
-    iterates ``tool.Blender.get_selected_objects()`` so a finish/cancel applies
-    to every selected door at once."""
-
-    pset_name = "BBIM_Door"
-
-    @classmethod
-    def _iter_targets(cls, context: bpy.types.Context) -> list[bpy.types.Object]:
-        return tool.Blender.get_selected_objects()
-
-    @classmethod
-    def _is_element_type(cls, element):
-        return tool.Blender.Modifier.is_door(element)
-
-    @classmethod
-    def _get_props(cls, obj: bpy.types.Object):
-        return tool.Model.get_door_props(obj)
-
-    @classmethod
-    def _update_modifier_representation(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_door_modifier_representation(obj)
-
-
-class CancelEditingDoor(_DoorEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class CancelEditingDoor(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.cancel_editing_door"
     bl_label = "Cancel Editing Door on Selected Objects"
     bl_description = "Cancel editing and revert door parameters to their previous values"
     bl_options = {"REGISTER", "UNDO"}
 
-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._cancel_targets(context)
+    def cancel_editing_door_on_object(self, obj: bpy.types.Object) -> None:
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        if not tool.Blender.Modifier.is_door(element):
+            return
+        props = tool.Model.get_door_props(obj)
+        data = json.loads(ifcopenshell.util.element.get_pset(element, "BBIM_Door", "Data"))
+        data.update(data.pop("lining_properties"))
+        data.update(data.pop("panel_properties"))
+
+        # restore previous settings since editing was canceled
+        props.set_props_kwargs_from_ifc_data(data)
+
+        body = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
+        core.switch_representation(
+            tool.Ifc,
+            tool.Geometry,
+            obj=obj,
+            representation=body,
+        )
+
+        props.is_editing = False
+
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
+        for obj in tool.Blender.get_selected_objects():
+            self.cancel_editing_door_on_object(obj)
+        return {"FINISHED"}
 
 
-class FinishEditingDoor(_DoorEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class FinishEditingDoor(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.finish_editing_door"
     bl_label = "Finish Editing Door on Selected Objects"
     bl_description = "Apply changes and finish editing door parameters"
     bl_options = {"REGISTER", "UNDO"}
 
-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._finish_targets(context)
+    def finish_editing_door_on_object(self, obj: bpy.types.Object) -> None:
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        if not tool.Blender.Modifier.is_door(element):
+            return
+        props = tool.Model.get_door_props(obj)
+
+        door_data = props.get_general_kwargs(convert_to_project_units=True)
+        lining_props = props.get_lining_kwargs(convert_to_project_units=True)
+        panel_props = props.get_panel_kwargs(convert_to_project_units=True)
+
+        door_data["lining_properties"] = lining_props
+        door_data["panel_properties"] = panel_props
+
+        props.is_editing = False
+
+        update_door_modifier_representation(obj)
+        element_type = ifcopenshell.util.element.get_type(element)
+        if element_type:
+            tool.Model.mark_thumbnail_for_update(element_type)
+
+        pset = tool.Pset.get_element_pset(element, "BBIM_Door")
+        door_data = tool.Ifc.get().createIfcText(json.dumps(door_data, default=list))
+        ifcopenshell.api.pset.edit_pset(tool.Ifc.get(), pset=pset, properties={"Data": door_data})
+
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
+        for obj in tool.Blender.get_selected_objects():
+            self.finish_editing_door_on_object(obj)
+        return {"FINISHED"}
 
 
-class EnableEditingDoor(_DoorEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class EnableEditingDoor(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.enable_editing_door"
     bl_label = "Enable Editing Door on Selected Objects"
     bl_description = "Enter edit mode to modify door parameters interactively"
     bl_options = {"REGISTER", "UNDO"}
 
-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._enable_targets(context)
+    def edit_door_on_obj(self, obj: bpy.types.Object) -> None:
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        if not tool.Blender.Modifier.is_door(element):
+            return
+        props = tool.Model.get_door_props(obj)
+        data = json.loads(ifcopenshell.util.element.get_pset(element, "BBIM_Door", "Data"))
+        data.update(data.pop("lining_properties"))
+        data.update(data.pop("panel_properties"))
+        data.update(tool.Model.get_constituents_props_data(element))
+
+        # required since we could load pset from .ifc and BIMDoorProperties won't be set
+        props.set_props_kwargs_from_ifc_data(data)
+        props.is_editing = True
+
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
+        for obj in tool.Blender.get_selected_objects():
+            self.edit_door_on_obj(obj)
+        return {"FINISHED"}
 
 
 class RemoveDoor(bpy.types.Operator, tool.Ifc.Operator):
@@ -707,8 +751,8 @@ class CycleDoorType(bpy.types.Operator, tool.Ifc.Operator, gizmo.CycleTypeMixin)
     bl_label = "Cycle Door Type"
     bl_options = {"REGISTER", "UNDO"}
 
-    element_checker = tool.Parametric.is_door
-    props_getter = tool.Model.get_door_props
+    element_checker = "is_door"
+    props_getter = "get_door_props"
     type_literal = tool.Model.DoorType
     type_attr = "door_type"
 
@@ -835,7 +879,7 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
         ),
     ]
 
-    props_getter = tool.Model.get_door_props
+    props_getter = "get_door_props"
     gizmo_pref_name = "door"
 
     @classmethod
@@ -866,11 +910,13 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
         self.gizmo_door_type = self.create_arc_gizmo(
             special_color,
             "bim.toggle_door_swing",
+            prop_path="BIMDoorProperties.door_type",
             flip_geometry=False,
         )
         self.gizmo_flip_arc = self.create_arc_gizmo(
             inactive_color,
             "bim.toggle_door_swing",
+            prop_path="BIMDoorProperties.door_type",
             flip_geometry=True,
             flip_local_axes="XY",
         )
@@ -893,7 +939,7 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
 
     def update_swing_gizmos(self, mw: Matrix, props: "BIMDoorProperties") -> None:
         """Update swing gizmo position and color based on editing state."""
-        prefs = self.get_addon_prefs()
+        prefs = tool.Blender.get_addon_preferences()
         door_gizmo_prefs = prefs.gizmos.door
 
         door_type_visible = self.update_gizmo_visibility(

src/bonsai/bonsai/bim/module/model/opening.py

@@ -41,187 +41,8 @@ from mathutils import Matrix, Vector
 
 import bonsai.core.geometry
 import bonsai.tool as tool
-from bonsai.bim import decorator_cache
 from bonsai.bim.module.drawing.decoration import DecoratorData
 
-# Multi-entry cache for the opening preview's dissolved-edges fallback.
-# Single-entry wouldn't fit: the draw handler iterates every active opening
-# per frame, each with its own mesh. Bumped wholesale on the shared
-# decorator-cache token (depsgraph / undo / redo / load), one slot per
-# (mesh.session_uid, angle_limit). Outlier vs. the per-object caches below —
-# consulted only on world-draw-data miss, so the global wipe rarely fires in
-# steady state and the simpler invalidation is enough.
-_dissolved_edges_cache: dict[
-    tuple[int, float],
-    tuple[list[Vector], list[tuple[int, int]]],
-] = {}
-_dissolved_edges_cache_token: int = -1
-
-
-def _get_cached_dissolved_edges(
-    mesh: bpy.types.Mesh,
-    angle_limit: float = radians(1.0),
-) -> tuple[list[Vector], list[tuple[int, int]]]:
-    global _dissolved_edges_cache_token
-    token = decorator_cache.get_decorator_cache_token()
-    if token != _dissolved_edges_cache_token:
-        _dissolved_edges_cache.clear()
-        _dissolved_edges_cache_token = token
-    key = (mesh.session_uid, angle_limit)
-    cached = _dissolved_edges_cache.get(key)
-    if cached is not None:
-        return cached
-    result = tool.Geometry.get_dissolved_edges(mesh, angle_limit=angle_limit)
-    _dissolved_edges_cache[key] = result
-    return result
-
-
-# Per-object epoch: bumped only when this specific object's transform or geometry
-# updates land in the depsgraph delta. Invalidation work scales with the number
-# of changed objects, not total scene size — moving one object leaves every
-# other entry valid. Bumped by the depsgraph handler below; cleared on
-# undo/redo/load alongside the cache dicts.
-_object_epochs: dict[int, int] = {}
-
-
-@bpy.app.handlers.persistent
-def _bump_object_epochs_for_decoration(*args) -> None:
-    # depsgraph_update_post is called as (scene, depsgraph) in 4.x but the
-    # *args signature follows decorator_cache's defensive idiom.
-    depsgraph = args[1] if len(args) >= 2 else None
-    if depsgraph is None or not hasattr(depsgraph, "updates"):
-        return
-    for u in depsgraph.updates:
-        if not isinstance(u.id, bpy.types.Object):
-            continue
-        if not (u.is_updated_geometry or u.is_updated_transform):
-            continue
-        # u.id is the evaluated COW copy; the cache keys are written from the
-        # original Object (read by the draw handler), and session_uid can
-        # differ across the COW boundary. Resolve to the original before keying.
-        original = getattr(u.id, "original", u.id)
-        if original is None:
-            continue
-        uid = original.session_uid
-        _object_epochs[uid] = _object_epochs.get(uid, 0) + 1
-
-
-@bpy.app.handlers.persistent
-def _clear_decoration_caches_globally(*args) -> None:
-    # Undo/redo/load: depsgraph deltas can't be trusted to describe the
-    # transition, so wipe every per-object cache state.
-    _object_epochs.clear()
-    _world_draw_data_cache.clear()
-    _batch_cache.clear()
-
-
-def _decoration_invalidation_hooks() -> tuple:
-    return (
-        bpy.app.handlers.undo_post,
-        bpy.app.handlers.redo_post,
-        bpy.app.handlers.load_post,
-    )
-
-
-def install_decoration_cache_handlers() -> None:
-    if _bump_object_epochs_for_decoration not in bpy.app.handlers.depsgraph_update_post:
-        bpy.app.handlers.depsgraph_update_post.append(_bump_object_epochs_for_decoration)
-    for hook in _decoration_invalidation_hooks():
-        if _clear_decoration_caches_globally not in hook:
-            hook.append(_clear_decoration_caches_globally)
-
-
-def uninstall_decoration_cache_handlers() -> None:
-    try:
-        bpy.app.handlers.depsgraph_update_post.remove(_bump_object_epochs_for_decoration)
-    except ValueError:
-        pass
-    for hook in _decoration_invalidation_hooks():
-        try:
-            hook.remove(_clear_decoration_caches_globally)
-        except ValueError:
-            pass
-
-
-# Per-object world-space draw payload: line_verts (dissolved or ios_edges-filtered),
-# verts (full mesh, indexed by loop_triangles), edges_indices, tris. Entries are
-# (epoch, payload) tuples; lookup compares epoch to _object_epochs[uid], so a
-# stale entry for an object that didn't change since the last build still hits.
-_world_draw_data_cache: dict[
-    int,
-    tuple[
-        int,
-        tuple[
-            list[tuple[float, float, float]],
-            list[tuple[float, float, float]],
-            list[tuple[int, int]],
-            list[tuple[int, ...]],
-        ],
-    ],
-] = {}
-
-
-def _get_cached_world_draw_data(
-    obj: bpy.types.Object,
-) -> tuple[
-    list[tuple[float, float, float]],
-    list[tuple[float, float, float]],
-    list[tuple[int, int]],
-    list[tuple[int, ...]],
-]:
-    uid = obj.session_uid
-    epoch = _object_epochs.get(uid, 0)
-    entry = _world_draw_data_cache.get(uid)
-    if entry is not None and entry[0] == epoch:
-        return entry[1]
-
-    mw = obj.matrix_world
-    verts = [tuple(mw @ v.co) for v in obj.data.vertices]
-    obj.data.calc_loop_triangles()
-    tris = [tuple(t.vertices) for t in obj.data.loop_triangles]
-
-    ios_edges_attribute = obj.data.attributes.get("ios_edges")
-    if ios_edges_attribute:
-        # Loader-curated edges: read the attribute aligned with bm.edges order.
-        bm = bmesh.new()
-        bm.from_mesh(obj.data)
-        edges_indices = [
-            tuple(v.index for v in e.verts) for i, e in enumerate(bm.edges) if ios_edges_attribute.data[i].value
-        ]
-        bm.free()
-        line_verts = verts
-    else:
-        dissolved, edges_indices = _get_cached_dissolved_edges(obj.data)
-        line_verts = [tuple(mw @ v) for v in dissolved]
-
-    result = (line_verts, verts, edges_indices, tris)
-    _world_draw_data_cache[uid] = (epoch, result)
-    return result
-
-
-# GPUBatch cache: skip per-frame batch_for_shader. Entries are (epoch, batch);
-# lookup compares epoch to _object_epochs[uid] so other objects' batches stay
-# alive when one object's depsgraph delta bumps only its own epoch. The cached
-# batches reference GPU-side buffers tied to Blender's built-in shaders, which
-# are themselves cached by name (gpu.shader.from_builtin returns the same
-# handle each call), so they stay drawable across frames.
-_batch_cache: dict[tuple[int, str], tuple[int, "gpu.types.GPUBatch"]] = {}
-
-
-def _get_cached_batch_or_none(cache_key: tuple[int, str]) -> "gpu.types.GPUBatch | None":
-    uid = cache_key[0]
-    epoch = _object_epochs.get(uid, 0)
-    entry = _batch_cache.get(cache_key)
-    if entry is not None and entry[0] == epoch:
-        return entry[1]
-    return None
-
-
-def _store_batch_in_cache(cache_key: tuple[int, str], batch: "gpu.types.GPUBatch") -> None:
-    uid = cache_key[0]
-    epoch = _object_epochs.get(uid, 0)
-    _batch_cache[cache_key] = (epoch, batch)
-
 
 class FilledOpeningGenerator:
     def generate(
@@ -1120,6 +941,7 @@ class SelectBoolean(Operator):
         return {"FINISHED"}
 
 
+# TODO: merge with ProfileDecorator?
 class DecorationsHandler:
     installed = None
 
@@ -1129,7 +951,6 @@ class DecorationsHandler:
             cls.uninstall()
         handler = cls()
         cls.installed = SpaceView3D.draw_handler_add(handler, (context,), "WINDOW", "POST_VIEW")
-        install_decoration_cache_handlers()
 
     @classmethod
     def uninstall(cls):
@@ -1138,46 +959,15 @@ class DecorationsHandler:
         except ValueError:
             pass
         cls.installed = None
-        uninstall_decoration_cache_handlers()
 
-    def _get_or_build_batch(self, shader, shader_type, content_pos, indices=None, cache_key=None):
-        if cache_key is not None:
-            cached = _get_cached_batch_or_none(cache_key)
-            if cached is not None:
-                return cached
+    def draw_batch(self, shader_type, content_pos, color, indices=None):
         if not tool.Blender.validate_shader_batch_data(content_pos, indices):
-            return None
-        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
-        if cache_key is not None:
-            _store_batch_in_cache(cache_key, batch)
-        return batch
-
-    def draw_batch(self, shader_type, content_pos, color, indices=None, cache_key=None):
-        shader = self.line_shader if shader_type == "LINES" else self.shader
-        batch = self._get_or_build_batch(shader, shader_type, content_pos, indices, cache_key=cache_key)
-        if batch is None:
             return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
         shader.uniform_float("color", color)
         batch.draw(shader)
 
-    def _draw_lines_with_occlusion(self, verts, color, edges_indices, occluded_alpha: float = 0.25, cache_key=None):
-        # One batch, two draws: front pass at full color, occluded pass at
-        # `occluded_alpha`. Save/restore depth_test matches the pattern in
-        # bim/module/structural/decorator.py so callers' state survives.
-        batch = self._get_or_build_batch(self.line_shader, "LINES", verts, edges_indices, cache_key=cache_key)
-        if batch is None:
-            return
-        original_depth_test = gpu.state.depth_test_get()
-        gpu.state.depth_test_set("LESS_EQUAL")
-        self.line_shader.uniform_float("color", color)
-        batch.draw(self.line_shader)
-        gpu.state.depth_test_set("GREATER")
-        dimmed = list(color)
-        dimmed[3] = occluded_alpha
-        self.line_shader.uniform_float("color", dimmed)
-        batch.draw(self.line_shader)
-        gpu.state.depth_test_set(original_depth_test)
-
     def __call__(self, context):
         props = tool.Model.get_model_props()
         if not props.openings:
@@ -1249,20 +1039,23 @@ class DecorationsHandler:
                 self.draw_batch("LINES", verts, selected_elements_color, selected_edges)
                 self.draw_batch("POINTS", unselected_vertices, unselected_elements_color)
                 self.draw_batch("POINTS", selected_vertices, selected_elements_color)
-                obj.data.calc_loop_triangles()
-                tris = [tuple(t.vertices) for t in obj.data.loop_triangles]
-                self.draw_batch("TRIS", verts, transparent_color(special_elements_color), tris)
             else:
-                line_verts, verts, edges_indices, tris = _get_cached_world_draw_data(obj)
+                bm = bmesh.new()
+                bm.from_mesh(obj.data)
+
+                verts = [tuple(obj.matrix_world @ v.co) for v in bm.verts]
+                if ios_edges_attribute := obj.data.attributes.get("ios_edges"):
+                    edges = [e for i, e in enumerate(bm.edges) if ios_edges_attribute.data[i].value]
+                else:
+                    edges = bm.edges
+                edges_indices = [tuple([v.index for v in e.verts]) for e in edges]
+
                 color = selected_elements_color if obj in context.selected_objects else special_elements_color
-                self._draw_lines_with_occlusion(line_verts, color, edges_indices, cache_key=(obj.session_uid, "lines"))
-                self.draw_batch(
-                    "TRIS",
-                    verts,
-                    transparent_color(special_elements_color),
-                    tris,
-                    cache_key=(obj.session_uid, "tris"),
-                )
+                self.draw_batch("LINES", verts, color, edges_indices)
+
+            obj.data.calc_loop_triangles()
+            tris = [tuple(t.vertices) for t in obj.data.loop_triangles]
+            self.draw_batch("TRIS", verts, transparent_color(special_elements_color), tris)
 
             if "HalfSpaceSolid" in obj.name:
                 # Arrow shape
@@ -1276,4 +1069,7 @@ class DecorationsHandler:
                 ]
                 edges = [(0, 1), (1, 2), (1, 3), (1, 4), (1, 5)]
                 color = selected_elements_color if obj in context.selected_objects else special_elements_color
-                self._draw_lines_with_occlusion(verts, color, edges, cache_key=(obj.session_uid, "arrow"))
+                self.draw_batch("LINES", verts, color, edges)
+
+            if obj.mode != "EDIT":
+                bm.free()

src/bonsai/bonsai/bim/module/model/polyline.py

@@ -75,7 +75,6 @@ class PolylineOperator:
         self.is_typing = False
         self.snap_angle = None
         self.snapping_points = []
-        self.unit_scale = 1.0
         self.instructions = {
             "Cycle Input": {"icons": True, "keys": ["EVENT_TAB"]},
             "Distance Input": {"icons": True, "keys": ["EVENT_D"]},

src/bonsai/bonsai/bim/module/model/preview_base.py

@@ -1,221 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Bonsai 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
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Shared helpers for Bonsai's parametric preview flows.
-
-Multiple Bonsai features follow the same Scene-level preview pattern:
-
-    Enable<X>Preview   — validates a selection, populates draft state on
-                         ``Scene.BIMPreviewProperties.<x>``, flips ``is_active``.
-    Gizmo<X>Preview    — polls on ``is_active``, surfaces tunable widgets +
-                         validate/cancel icons.
-    <X>PreviewDecorator — GPU lines drawn while ``is_active`` is True.
-    Finish<X>Preview   — direct ``bpy.ops.bim.<verb>(...)`` call with kwargs
-                         read off the draft state, then clears it.
-    Cancel<X>Preview   — pure state reset.
-
-The MEP bend and wall fillet flows are the two current callers. They write
-their Finish / Cancel operators directly, matching the convention used
-throughout the rest of ``bim/module/model/`` for operator-to-operator
-dispatch (explicit ``bpy.ops.bim.X(kwarg=value)`` at the call site, no
-string indirection). This module hosts the cross-cutting accessors only;
-no base class layer.
-
-The GPU draw-handler lifecycle for ``<X>PreviewDecorator`` lives on the
-feature-neutral ``tool.Blender.ViewportDecorator`` base, which every
-viewport decorator (preview or otherwise) inherits from."""
-
-from __future__ import annotations
-
-from collections.abc import Callable
-from typing import Any
-
-import bpy
-
-import bonsai.tool as tool
-
-# --- Props accessors ---------------------------------------------------------
-
-
-def get_preview_props(context: bpy.types.Context, attr: str):
-    """Resolve a child preview PropertyGroup under ``Scene.BIMPreviewProperties``.
-
-    Returns ``None`` if the umbrella isn't attached yet — true briefly
-    during addon register and during plug-out, so polls / draw callbacks
-    must defend against ``None`` rather than assuming the prop is always
-    available. Also tolerates contexts without a ``scene`` attribute
-    (test mocks built from ``SimpleNamespace``)."""
-    scene = getattr(context, "scene", None)
-    if scene is None:
-        return None
-    preview = getattr(scene, "BIMPreviewProperties", None)
-    return getattr(preview, attr, None) if preview is not None else None
-
-
-def is_preview_active(context: bpy.types.Context, attr: str) -> bool:
-    """``True`` while a specific preview is open. Used by sibling gizmo
-    polls to hide themselves so the preview is the only interactive
-    surface in the viewport (the bend / fillet preview groups take over
-    the same selection's icon stack)."""
-    props = get_preview_props(context, attr)
-    return bool(props is not None and props.is_active)
-
-
-def any_preview_active(context: bpy.types.Context) -> bool:
-    """``True`` if any registered preview is currently open. Sister gizmo
-    polls call this to hide themselves uniformly during ANY preview, so a
-    new preview registered in ``PREVIEW_CANCEL_OPS`` automatically gates
-    every parametric gizmo without each one growing a specific check."""
-    for attr, _op_name in PREVIEW_CANCEL_OPS:
-        if is_preview_active(context, attr):
-            return True
-    return False
-
-
-# --- Lazy closure factories --------------------------------------------------
-#
-# Used by preview gizmo groups when wiring ``BIM_GT_gizmo_dimension``'s
-# ``move_get_cb`` / ``move_set_cb`` callbacks. The closures re-resolve
-# ``bpy.context.scene`` per CALL rather than capturing it at setup() time
-# — the captured Scene's RNA struct can be freed on file open / undo, and
-# referencing a freed struct crashes Blender. Lazy lookup survives the
-# whole undo / reload lifecycle.
-
-
-def make_props_callback(attr: str) -> Callable[[], Any]:
-    """Return a zero-arg callable that lazily fetches the preview props.
-
-    Equivalent to ``getattr(bpy.context.scene.BIMPreviewProperties, attr)``
-    with full defensiveness against missing scene / missing umbrella."""
-
-    def _props():
-        scene = bpy.context.scene
-        preview = getattr(scene, "BIMPreviewProperties", None) if scene else None
-        return getattr(preview, attr, None) if preview is not None else None
-
-    return _props
-
-
-def make_dim_getter(props_callback: Callable[[], Any], field: str) -> Callable[[], float]:
-    """Factory for ``BIM_GT_gizmo_dimension.move_get_cb`` reading a single
-    FloatProperty off the live preview state. Returns ``0.0`` defensively
-    when the props are temporarily unavailable so the widget doesn't crash
-    Blender during plug-out / reload."""
-
-    def _get() -> float:
-        props = props_callback()
-        return getattr(props, field) if props is not None else 0.0
-
-    return _get
-
-
-def make_dim_setter(
-    props_callback: Callable[[], Any],
-    field: str,
-    min_value: float = 0.001,
-) -> Callable[[float], None]:
-    """Factory for ``BIM_GT_gizmo_dimension.move_set_cb`` writing a single
-    FloatProperty + tagging viewport areas for redraw so the GPU preview
-    decorator tracks the value live during drag. Clamps at ``min_value``
-    to match the FloatProperty's declared lower bound."""
-
-    def _set(value: float) -> None:
-        props = props_callback()
-        if props is None:
-            return
-        setattr(props, field, max(min_value, float(value)))
-        tool.Blender.update_all_viewports()
-
-    return _set
-
-
-# --- Shared Enable lifecycle helpers -----------------------------------------
-
-
-def sync_uncommitted_moves(objects: list) -> None:
-    """Push any Blender-side translation / rotation of ``objects`` back to
-    their IFC ``ObjectPlacement`` before a preview decorator starts reading
-    ``obj.matrix_world`` per frame.
-
-    Without this sync, a user who grabbed-moved an object but didn't commit
-    the move sees the live preview at the dragged position while the final
-    commit lands at the stale IFC position — a confusing "where did my
-    preview go?" experience. Both bend and fillet enable paths call this
-    on the relevant pair just before activating the preview."""
-    for obj in objects:
-        tool.Geometry.commit_placement_if_moved(obj, apply_scale=False)
-
-
-# --- Esc dispatch ------------------------------------------------------------
-
-PREVIEW_CANCEL_OPS: tuple[tuple[str, str], ...] = (
-    ("bend", "cancel_bend_preview"),
-    ("wall_fillet", "cancel_wall_fillet_preview"),
-)
-"""Registry of ``(child PointerProperty on Scene.BIMPreviewProperties, bim
-operator name)`` consulted by the Esc handler. Adding a new preview means
-appending one tuple; the forward-compat test pins that every preview
-PropertyGroup with ``is_active`` has an entry here."""
-
-
-def try_cancel_active_preview(context: bpy.types.Context) -> bool:
-    """Cancel every registered preview that is currently active.
-
-    Returns ``True`` iff at least one preview was cancelled. Multiple
-    previews can be simultaneously active (e.g. a stale bend preview opened
-    just before the user starts a wall fillet) — one Esc must clear them
-    all rather than forcing the user to tap Esc once per preview.
-
-    Tags 3D viewports for redraw on success — the Esc keymap entry runs
-    outside a viewport mouse event so the gizmo poll wouldn't re-evaluate
-    until the next interaction without an explicit redraw."""
-    cancelled = False
-    for attr, op_name in PREVIEW_CANCEL_OPS:
-        if is_preview_active(context, attr):
-            getattr(bpy.ops.bim, op_name)()
-            cancelled = True
-    if cancelled:
-        tool.Blender.update_all_viewports(context)
-    return cancelled
-
-
-def discard_pending_previews(scene: bpy.types.Scene) -> None:
-    """Clear every active preview under ``Scene.BIMPreviewProperties`` so
-    saved preview state never resurfaces on file load.
-
-    Mirrors ``tool.Parametric.heal_stale_edit_flags`` for the object-level
-    parametric-edit lifecycle — except previews are *discarded* rather than
-    validated. A preview's only UI cue is its in-viewport widget; reloading
-    a ``.blend`` saved mid-preview restores the flag but not the surrounding
-    user attention, and a stuck ``is_active`` silently hides every sibling
-    gizmo poll gated on it.
-
-    Iterates ``PREVIEW_CANCEL_OPS`` so any preview registered for Esc
-    cancellation is automatically covered here too. Sets ``is_active``
-    directly rather than dispatching the cancel operator: load_post may
-    fire before ``bpy.context.screen`` is reattached, and the cancel
-    operators bail on ``context.screen is None``."""
-    preview = getattr(scene, "BIMPreviewProperties", None)
-    if preview is None:
-        return
-    for attr, _op_name in PREVIEW_CANCEL_OPS:
-        child = getattr(preview, attr, None)
-        if child is not None and getattr(child, "is_active", False):
-            child.is_active = False

src/bonsai/bonsai/bim/module/model/prop.py

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import math
 from collections.abc import Callable
@@ -195,32 +193,6 @@ def update_stair(self: "BIMStairProperties", context: bpy.types.Context) -> None
         _get_updater("stair", "regenerate_stair_mesh")(obj)
 
 
-def update_wall(self: "BIMWallProperties", context: bpy.types.Context) -> None:
-    """Regenerate wall mesh preview when property changes. Does NOT touch IFC."""
-    obj = context.active_object
-    if obj and self.is_editing:
-        _get_updater("wall", "regenerate_wall_mesh_from_props")(obj)
-
-
-def update_wall_offset_baseline(self: "BIMWallProperties", context: bpy.types.Context) -> None:
-    """Recompute the preview-only ``offset`` when the draft baseline cycles. Does not touch IFC.
-
-    ``offset`` itself has no ``update`` callback on purpose — adding one would make
-    every baseline cycle rebuild the bmesh twice (once via offset's callback, once
-    explicitly below)."""
-    obj = context.active_object
-    if not (obj and self.is_editing):
-        return
-    t = self.thickness
-    if self.desired_offset_baseline == "CENTER":
-        self.offset = -t / 2
-    elif self.desired_offset_baseline == "INTERIOR":
-        self.offset = -t
-    else:  # EXTERIOR
-        self.offset = 0.0
-    _get_updater("wall", "regenerate_wall_mesh_from_props")(obj)
-
-
 def update_railing(self: "BIMRailingProperties", context: bpy.types.Context) -> None:
     """Regenerate railing mesh when property changes."""
     if self.is_editing:
@@ -1659,118 +1631,6 @@ class BIMRoofProperties(PropertyGroup):
             setattr(target_props, prop_name, prop_value)
 
 
-class BIMWallProperties(PropertyGroup):
-    """Transient draft state for parametric wall gizmo editing.
-
-    Populated from IFC on `bim.enable_editing_wall`, mutated by gizmo drags during edit
-    (preview only — no IFC writes), and either committed by `bim.finish_editing_wall`
-    or discarded by `bim.cancel_editing_wall`.
-
-    The `snap_*` fields are the values captured on enable; `finish_editing_wall` compares
-    current vs snap to skip unchanged params and guarantee a no-op session leaves the
-    IFC file byte-identical.
-    """
-
-    is_editing: bpy.props.BoolProperty(
-        default=False,
-        description="True while wall parametric edit mode is active.",
-    )
-    mesh_dirty: bpy.props.BoolProperty(
-        default=False,
-        options={"HIDDEN", "SKIP_SAVE"},
-        description=(
-            "True while the visible mesh is the preview box; cleared once the real "
-            "IFC-derived geometry is restored (on commit or cancel)."
-        ),
-    )
-    length: bpy.props.FloatProperty(
-        name="Length",
-        default=1.0,
-        min=0.01,
-        subtype="DISTANCE",
-        update=update_wall,
-        description="Wall length along its reference axis (preview value; committed on finish).",
-    )
-    height: bpy.props.FloatProperty(
-        name="Height",
-        default=3.0,
-        min=0.01,
-        subtype="DISTANCE",
-        update=update_wall,
-        description="Wall vertical height (preview value; committed on finish).",
-    )
-    x_angle: bpy.props.FloatProperty(
-        name="Slope (X Angle)",
-        default=0.0,
-        soft_min=-math.pi / 3,
-        soft_max=math.pi / 3,
-        subtype="ANGLE",
-        update=update_wall,
-        description="Slope angle: tilt of the wall's top face along +Y (preview value; committed on finish).",
-    )
-    thickness: bpy.props.FloatProperty(
-        name="Thickness",
-        default=0.2,
-        min=0.001,
-        subtype="DISTANCE",
-        description="Wall thickness captured from IFC at edit-enable; not gizmo-bound.",
-    )
-    offset: bpy.props.FloatProperty(
-        name="Offset",
-        default=0.0,
-        subtype="DISTANCE",
-        description="Layer-set offset captured from IFC at edit-enable; driven by desired_offset_baseline.",
-    )
-    desired_offset_baseline: bpy.props.EnumProperty(
-        items=[
-            ("EXTERIOR", "Exterior", "Reference axis at the exterior face"),
-            ("CENTER", "Center", "Reference axis at the wall centreline"),
-            ("INTERIOR", "Interior", "Reference axis at the interior face"),
-        ],
-        name="Desired Offset Baseline",
-        default="CENTER",
-        update=update_wall_offset_baseline,
-        description="Which face of the wall the reference axis aligns to (preview value; committed on finish).",
-    )
-    anchor_x: bpy.props.FloatProperty(
-        default=0.0,
-        subtype="DISTANCE",
-        description="Local-X of the wall's axis polyline start, so the preview box lands where the IFC mesh does.",
-    )
-
-    snap_length: bpy.props.FloatProperty(description="Snapshot of length at edit-enable; commit skips no-op writes.")
-    snap_height: bpy.props.FloatProperty(description="Snapshot of height at edit-enable; commit skips no-op writes.")
-    snap_thickness: bpy.props.FloatProperty(
-        description="Snapshot of thickness at edit-enable; commit skips no-op writes."
-    )
-    snap_offset: bpy.props.FloatProperty(description="Snapshot of offset at edit-enable; commit skips no-op writes.")
-    snap_x_angle: bpy.props.FloatProperty(
-        subtype="ANGLE",
-        description="Snapshot of x_angle at edit-enable; commit skips no-op writes.",
-    )
-    snap_offset_baseline: bpy.props.StringProperty(
-        default="",
-        description="Snapshot of desired_offset_baseline at edit-enable; commit skips no-op writes.",
-    )
-
-    if TYPE_CHECKING:
-        is_editing: bool
-        mesh_dirty: bool
-        length: float
-        height: float
-        x_angle: float
-        thickness: float
-        offset: float
-        desired_offset_baseline: Literal["EXTERIOR", "CENTER", "INTERIOR"]
-        anchor_x: float
-        snap_length: float
-        snap_height: float
-        snap_thickness: float
-        snap_offset: float
-        snap_x_angle: float
-        snap_offset_baseline: str
-
-
 class SnapMousePoint(PropertyGroup):
     x: bpy.props.FloatProperty(name="X")
     y: bpy.props.FloatProperty(name="Y")
@@ -1902,65 +1762,3 @@ class BIMExternalParametricGeometryProperties(bpy.types.PropertyGroup):
         geometry_source: Literal["GEONODES", "IFCSVERCHOK"]
         geo_nodes: Union[bpy.types.GeometryNodeTree, None]
         sverchok_nodes: Union[sverchok.node_tree.SverchCustomTree, None]
-
-
-class BIMWallFilletPreviewProperties(PropertyGroup):
-    """Scene-level pending state for the wall-fillet preview flow.
-
-    Scene-level because the fillet spans two walls and commits a third
-    (corner) wall between them. ``SKIP_SAVE`` fields throughout."""
-
-    is_active: bpy.props.BoolProperty(
-        default=False,
-        options={"SKIP_SAVE"},
-        description="True while the wall-fillet preview flow is active.",
-    )
-    wall_a_id: bpy.props.IntProperty(
-        default=0,
-        options={"SKIP_SAVE"},
-        description=(
-            "IFC element id of the active wall — the corner wall inherits its "
-            "material layer set, height, x_angle, and type."
-        ),
-    )
-    wall_b_id: bpy.props.IntProperty(
-        default=0,
-        options={"SKIP_SAVE"},
-        description="IFC element id of the other selected wall.",
-    )
-    radius: bpy.props.FloatProperty(
-        name="Radius",
-        default=0.5,
-        soft_min=-10.0,
-        soft_max=10.0,
-        subtype="DISTANCE",
-        unit="LENGTH",
-        options={"SKIP_SAVE"},
-        description="Radius of the circular arc connecting the two walls.",
-    )
-    editing_corner_id: bpy.props.IntProperty(
-        default=0,
-        options={"SKIP_SAVE"},
-        description=(
-            "IFC element id of an existing fillet corner being re-edited "
-            "(non-zero only on the pen-icon re-edit flow). The create "
-            "operator deletes this corner + its connections before recreating "
-            "with the new radius."
-        ),
-    )
-
-    if TYPE_CHECKING:
-        is_active: bool
-        wall_a_id: int
-        wall_b_id: int
-        radius: float
-        editing_corner_id: int
-
-
-class BIMPreviewProperties(PropertyGroup):
-    """Umbrella for parametric-edit preview drafts attached to ``Scene``."""
-
-    wall_fillet: bpy.props.PointerProperty(type=BIMWallFilletPreviewProperties)
-
-    if TYPE_CHECKING:
-        wall_fillet: BIMWallFilletPreviewProperties

src/bonsai/bonsai/bim/module/model/railing.py

@@ -34,7 +34,6 @@ import bonsai.core.root
 import bonsai.tool as tool
 from bonsai.bim.module.model.data import RailingData, refresh
 from bonsai.bim.module.model.decorator import ProfileDecorator
-from bonsai.bim.parametric_lifecycle import PathPreservingEditMixin
 
 # reference:
 # https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRailing.htm
@@ -93,6 +92,7 @@ def update_railing_modifier_ifc_data(context: bpy.types.Context) -> None:
         si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
 
         representation_data = {
+            "railing_type": props.railing_type,
             "context": body,
             "railing_path": railing_path,
             "use_manual_supports": props.use_manual_supports,
@@ -406,65 +406,66 @@ class CopyRailingParameters(bpy.types.Operator, tool.Ifc.Operator):
         return {"FINISHED"}
 
 
-class _RailingEditMixin(PathPreservingEditMixin):
-    """Type-specific hooks for railing parametric-edit operators. Single-object
-    (active_object). ``path_data`` is preserved through the edit; the separate
-    ``Enable/Finish/CancelEditingRailingPath`` operators handle path editing."""
-
-    pset_name = "BBIM_Railing"
-
-    @classmethod
-    def _is_element_type(cls, element):
-        return tool.Blender.Modifier.is_railing(element)
-
-    @classmethod
-    def _get_props(cls, obj: bpy.types.Object):
-        return tool.Model.get_railing_props(obj)
-
-    @classmethod
-    def _post_load_data(cls, data: dict) -> dict:
-        # BIMRailingProperties.path_data is a StringProperty holding JSON.
-        data["path_data"] = json.dumps(data["path_data"])
-        return data
-
-    @classmethod
-    def _update_pset(cls, element, data: dict) -> None:
-        update_bbim_railing_pset(element, data)
-
-    @classmethod
-    def _update_modifier_ifc_data(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_railing_modifier_ifc_data(context)
-
-    @classmethod
-    def _update_modifier_bmesh(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_railing_modifier_bmesh(context)
-
-
-class EnableEditingRailing(_RailingEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class EnableEditingRailing(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.enable_editing_railing"
     bl_label = "Enable Editing Railing"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context):
-        return self._enable_targets(context)
+        obj = context.active_object
+        assert obj
+        props = tool.Model.get_railing_props(obj)
+        data = tool.Model.get_modeling_bbim_pset_data(obj, "BBIM_Railing")["data_dict"]
+        data["path_data"] = json.dumps(data["path_data"])
+
+        # required since we could load pset from .ifc and BIMRailingProperties won't be set
+        props.set_props_kwargs_from_ifc_data(data)
+
+        props.is_editing = True
+        return {"FINISHED"}
 
 
-class CancelEditingRailing(_RailingEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class CancelEditingRailing(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.cancel_editing_railing"
     bl_label = "Cancel Editing Railing"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context):
-        return self._cancel_targets(context)
+        obj = context.active_object
+        assert obj
+        data = tool.Model.get_modeling_bbim_pset_data(obj, "BBIM_Railing")["data_dict"]
+        props = tool.Model.get_railing_props(obj)
+
+        # restore previous settings since editing was canceled
+        props.set_props_kwargs_from_ifc_data(data)
+        update_railing_modifier_bmesh(context)
+
+        props.is_editing = False
+        return {"FINISHED"}
 
 
-class FinishEditingRailing(_RailingEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class FinishEditingRailing(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.finish_editing_railing"
     bl_label = "Finish Editing Railing"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context):
-        return self._finish_targets(context)
+        obj = context.active_object
+        assert obj
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        props = tool.Model.get_railing_props(obj)
+
+        pset_data = tool.Model.get_modeling_bbim_pset_data(bpy.context.active_object, "BBIM_Railing")
+        path_data = pset_data["data_dict"]["path_data"]
+
+        railing_data = props.get_general_kwargs(convert_to_project_units=True)
+        railing_data["path_data"] = path_data
+        props.is_editing = False
+
+        update_bbim_railing_pset(element, railing_data)
+        update_railing_modifier_ifc_data(context)
+        return {"FINISHED"}
 
 
 class FlipRailingPathOrder(bpy.types.Operator, tool.Ifc.Operator):

src/bonsai/bonsai/bim/module/model/roof.py

@@ -34,7 +34,6 @@ import bonsai.core.root
 import bonsai.tool as tool
 from bonsai.bim.module.model.data import RoofData, refresh
 from bonsai.bim.module.model.decorator import ProfileDecorator
-from bonsai.bim.parametric_lifecycle import PathPreservingEditMixin
 
 # reference:
 # https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRoof.htm
@@ -609,59 +608,61 @@ class AddRoof(bpy.types.Operator, tool.Ifc.Operator):
         tool.Model.add_body_representation(obj)
 
 
-class _RoofEditMixin(PathPreservingEditMixin):
-    """Type-specific hooks for roof parametric-edit operators. Single-object
-    (active_object). ``path_data`` is preserved through the edit; the separate
-    ``Enable/Finish/CancelEditingRoofPath`` operators handle path editing."""
-
-    pset_name = "BBIM_Roof"
-
-    @classmethod
-    def _is_element_type(cls, element):
-        return tool.Blender.Modifier.is_roof(element)
-
-    @classmethod
-    def _get_props(cls, obj: bpy.types.Object):
-        return tool.Model.get_roof_props(obj)
-
-    @classmethod
-    def _update_pset(cls, element, data: dict) -> None:
-        update_bbim_roof_pset(element, data)
-
-    @classmethod
-    def _update_modifier_ifc_data(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_roof_modifier_ifc_data(context)
-
-    @classmethod
-    def _update_modifier_bmesh(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_roof_modifier_bmesh(obj)
-
-
-class EnableEditingRoof(_RoofEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class EnableEditingRoof(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.enable_editing_roof"
     bl_label = "Enable Editing Roof"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context):
-        return self._enable_targets(context)
+        obj = context.active_object
+        assert obj
+        props = tool.Model.get_roof_props(obj)
+        data = tool.Model.get_modeling_bbim_pset_data(obj, "BBIM_Roof")["data_dict"]
+        # required since we could load pset from .ifc and BIMRoofProperties won't be set
+        props.set_props_kwargs_from_ifc_data(data)
+        props.is_editing = True
+        return {"FINISHED"}
 
 
-class CancelEditingRoof(_RoofEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class CancelEditingRoof(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.cancel_editing_roof"
     bl_label = "Cancel Editing Roof"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context):
-        return self._cancel_targets(context)
+        obj = context.active_object
+        assert obj
+        data = tool.Model.get_modeling_bbim_pset_data(obj, "BBIM_Roof")["data_dict"]
+        props = tool.Model.get_roof_props(obj)
+
+        # restore previous settings since editing was canceled
+        props.set_props_kwargs_from_ifc_data(data)
+        update_roof_modifier_bmesh(obj)
+
+        props.is_editing = False
+        return {"FINISHED"}
 
 
-class FinishEditingRoof(_RoofEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class FinishEditingRoof(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.finish_editing_roof"
     bl_label = "Finish Editing Roof"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context):
-        return self._finish_targets(context)
+        obj = context.active_object
+        element = tool.Ifc.get_entity(obj)
+        props = tool.Model.get_roof_props(obj)
+
+        pset_data = tool.Model.get_modeling_bbim_pset_data(obj, "BBIM_Roof")
+        path_data = pset_data["data_dict"]["path_data"]
+
+        roof_data = props.get_general_kwargs(convert_to_project_units=True)
+        roof_data["path_data"] = path_data
+        props.is_editing = False
+
+        update_bbim_roof_pset(element, roof_data)
+        update_roof_modifier_ifc_data(context)
+        return {"FINISHED"}
 
 
 class EnableEditingRoofPath(bpy.types.Operator, tool.Ifc.Operator):

src/bonsai/bonsai/bim/module/model/stair.py

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import json
 
@@ -264,6 +262,7 @@ class FinishEditingStair(bpy.types.Operator, tool.Ifc.Operator):
 
         # Use the special method that includes custom_tread_lock for IFC storage
         data = props.get_props_kwargs_for_ifc_export(convert_to_project_units=True)
+        props.is_editing = False
         regenerate_stair_mesh(obj)
         tool.Model.add_body_representation(obj)
 
@@ -273,7 +272,6 @@ class FinishEditingStair(bpy.types.Operator, tool.Ifc.Operator):
 
         # update IfcStairFlight properties
         update_ifc_stair_props(obj)
-        props.is_editing = False
         return {"FINISHED"}
 
 
@@ -430,7 +428,7 @@ class CycleStairType(bpy.types.Operator, gizmo.CycleTypeMixin):
     bl_label = "Cycle Stair Type"
     bl_options = {"REGISTER", "UNDO"}
 
-    props_getter = tool.Model.get_stair_props
+    props_getter = "get_stair_props"
     type_literal = tool.Model.StairType
     type_attr = "stair_type"
     skip_element_check = True
@@ -580,7 +578,7 @@ class GizmoStairEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
     ]
 
     # Metadata-driven dispatch for props and preferences
-    props_getter = tool.Model.get_stair_props
+    props_getter = "get_stair_props"
     gizmo_pref_name = "stair"
 
     @classmethod
@@ -593,12 +591,14 @@ class GizmoStairEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
             "VIEW3D_GT_lock",
             self.COLOR_BLUE,
             "bim.toggle_stair_property",
+            prop_path="BIMStairProperties.total_length_lock",
             property_name="total_length_lock",
         )
         self.tread_lock_gizmo = self.create_icon_gizmo(
             "VIEW3D_GT_lock",
             (1.0, 1.0, 1.0),
             "bim.toggle_stair_property",
+            prop_path="BIMStairProperties.custom_tread_lock",
             property_name="custom_tread_lock",
         )
         self.plus_gizmo = self.create_icon_gizmo(
@@ -608,23 +608,29 @@ class GizmoStairEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
             "VIEW3D_GT_minus", self.COLOR_RED, "bim.adjust_stair_treads", increment=-1
         )
 
-    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)
+    def _refresh_element_specific(self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties") -> None:
+        """Update stair-specific lock and tread count gizmos."""
+        billboard_rot = gizmo.get_billboard_rotation(context)
+        self.update_lock_gizmo(mw, props, billboard_rot)
         self.update_tread_lock_gizmo(props)
         self.update_tread_count_gizmos(props)
 
-    def update_lock_gizmo(self, props: "BIMStairProperties") -> None:
-        """Update lock gizmo color and visibility. Positioning is handled
-        per-frame by the dimension-positioning hook."""
+    def update_lock_gizmo(self, mw: Matrix, props: "BIMStairProperties", billboard_rot: Matrix) -> None:
+        """Update lock gizmo visibility, color, and position."""
         gizmo_prefs = self.get_gizmo_prefs()
         if not self.update_gizmo_visibility(self.lock_gizmo, props.is_editing, gizmo_prefs.lock):
-            return  # Hidden, skip color update
+            return  # Hidden, skip positioning
+
         self.lock_gizmo.color = self.COLOR_RED if props.total_length_lock else self.COLOR_GREEN
 
+        total_run = props.get_total_run()
+        local_transform = (
+            Matrix.Translation(Vector((total_run + self.ICON_Z_OFFSET, -self.GIZMO_OFFSET, -self.GIZMO_OFFSET)))
+            @ billboard_rot
+            @ Matrix.Scale(self.EDITING_ICON_SCALE, 4)
+        )
+        self.lock_gizmo.matrix_basis = mw @ local_transform
+
     def update_tread_lock_gizmo(self, props: "BIMStairProperties") -> None:
         """Update visibility of tread lock gizmo. Positioning is handled in _update_editing_icon_positions."""
         if not hasattr(self, "tread_lock_gizmo"):
@@ -644,11 +650,11 @@ class GizmoStairEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
         )
 
     def _update_dimension_gizmo_positions(
-        self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties"  # noqa: ARG002
+        self, context: bpy.types.Context, mw: Matrix, props: "BIMStairProperties"
     ) -> None:
         """Update dimension gizmo positions based on camera view direction."""
-        viewing_from_negative_y, viewing_from_negative_x = self._frame_view_dir
-        billboard_rot = self._frame_billboard_rot
+        viewing_from_negative_y, viewing_from_negative_x = self.get_local_view_direction(context, mw)
+        billboard_rot = gizmo.get_billboard_rotation(context)
         total_run = props.get_total_run()
         riser_height = props.get_riser_height()
 

src/bonsai/bonsai/bim/module/model/ui.py

@@ -24,7 +24,6 @@ from typing import TYPE_CHECKING, Any
 import bpy
 from bpy.types import Panel
 
-import ifcopenshell.util.unit
 import bonsai.bim
 import bonsai.tool as tool
 from bonsai.bim.helper import prop_with_search
@@ -304,8 +303,6 @@ class BIM_PT_stair(bpy.types.Panel):
             row = self.layout.row(align=True)
             row.label(text="Stair parameters", icon="IPO_CONSTANT")
 
-            si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
-
             if props.is_editing:
                 calculated_params = tool.Model.get_active_stair_calculated_params()
                 row = self.layout.row(align=True)
@@ -325,61 +322,22 @@ class BIM_PT_stair(bpy.types.Panel):
                         row.label(text=f"{prop_name}:")
                         row = self.layout.row(align=True)
                         for prop_value_item in prop_value:
-                            if isinstance(prop_value_item, float):
-                                row.label(text=tool.Unit.format_distance(prop_value_item * si_conversion))
-                            else:
-                                row.label(text=str(prop_value_item))
+                            row.label(text=str(prop_value_item))
                     else:
                         row.label(text=prop_name)
-                        if isinstance(prop_value, float):
-                            row.label(text=tool.Unit.format_distance(prop_value * si_conversion))
-                        else:
-                            row.label(text=str(prop_value))
+                        row.label(text=str(prop_value))
 
             # calculated properties
             for prop_name, prop_value in calculated_params.items():
                 row = self.layout.row(align=True)
                 row.label(text=prop_name)
-                if isinstance(prop_value, float):
-                    row.label(text=tool.Unit.format_distance(prop_value * si_conversion))
-                else:
-                    row.label(text=str(prop_value))
+                row.label(text=str(prop_value))
         else:
             row = self.layout.row()
             row.label(text="No Stair Found")
             row.operator("bim.add_stair", icon="ADD", text="")
 
 
-class BIM_PT_wall(bpy.types.Panel):
-    bl_label = "Wall"
-    bl_idname = "BIM_PT_wall"
-    bl_space_type = "PROPERTIES"
-    bl_region_type = "WINDOW"
-    bl_context = "scene"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_parent_id = "BIM_PT_tab_parametric_geometry"
-
-    @classmethod
-    def poll(cls, context):
-        obj = context.active_object
-        if not obj:
-            return False
-        element = tool.Ifc.get_entity(obj)
-        return bool(element) and tool.Blender.Modifier.is_wall(element)
-
-    def draw(self, context):
-        obj = context.active_object
-        if obj is None:
-            return
-        props = tool.Model.get_wall_props(obj)
-        row = self.layout.row(align=True)
-        if props.is_editing:
-            row.operator("bim.finish_editing_wall", icon="CHECKMARK", text="Finish Editing")
-            row.operator("bim.cancel_editing_wall", icon="CANCEL", text="")
-        else:
-            row.operator("bim.enable_editing_wall", icon="GREASEPENCIL", text="Edit Wall")
-
-
 class BIM_PT_sverchok(bpy.types.Panel):
     bl_label = "Sverchok"
     bl_idname = "BIM_PT_sverchok"

src/bonsai/bonsai/bim/module/model/window.py

@@ -39,7 +39,6 @@ import bonsai.core.root
 import bonsai.tool as tool
 from bonsai.bim.module.drawing import gizmos as gizmo
 from bonsai.bim.module.drawing.gizmos import DimensionGizmoConfig
-from bonsai.bim.parametric_lifecycle import FeatureModifierEditMixin
 
 if TYPE_CHECKING:
     from bonsai.bim.module.model.prop import BIMWindowProperties
@@ -483,53 +482,90 @@ class AddWindow(bpy.types.Operator, tool.Ifc.Operator):
         return {"FINISHED"}
 
 
-class _WindowEditMixin(FeatureModifierEditMixin):
-    """Type-specific hooks for window parametric-edit operators. Single-object
-    by design (window edits target the active object only)."""
-
-    pset_name = "BBIM_Window"
-
-    @classmethod
-    def _is_element_type(cls, element):
-        return tool.Blender.Modifier.is_window(element)
-
-    @classmethod
-    def _get_props(cls, obj: bpy.types.Object):
-        return tool.Model.get_window_props(obj)
-
-    @classmethod
-    def _update_modifier_representation(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_window_modifier_representation(context)
-
-
-class CancelEditingWindow(_WindowEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class CancelEditingWindow(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.cancel_editing_window"
     bl_label = "Cancel Editing Window"
     bl_description = "Cancel editing and revert window parameters to their previous values"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._cancel_targets(context)
+        obj = context.active_object
+        assert obj
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        data = json.loads(ifcopenshell.util.element.get_pset(element, "BBIM_Window", "Data"))
+        data.update(data.pop("lining_properties"))
+        data.update(data.pop("panel_properties"))
+        props = tool.Model.get_window_props(obj)
+        props.set_props_kwargs_from_ifc_data(data)
+
+        body = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
+        bonsai.core.geometry.switch_representation(
+            tool.Ifc,
+            tool.Geometry,
+            obj=obj,
+            representation=body,
+        )
+
+        props.is_editing = False
+        return {"FINISHED"}
 
 
-class FinishEditingWindow(_WindowEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class FinishEditingWindow(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.finish_editing_window"
     bl_label = "Finish Editing Window"
     bl_description = "Apply changes and finish editing window parameters"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._finish_targets(context)
+        obj = context.active_object
+        assert obj
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        props = tool.Model.get_window_props(obj)
+
+        window_data = props.get_general_kwargs(convert_to_project_units=True)
+        lining_props = props.get_lining_kwargs(convert_to_project_units=True)
+        panel_props = props.get_panel_kwargs(convert_to_project_units=True)
+
+        window_data["lining_properties"] = lining_props
+        window_data["panel_properties"] = panel_props
+
+        props.is_editing = False
+
+        update_window_modifier_representation(context)
+        element_type = ifcopenshell.util.element.get_type(element)
+        if element_type:
+            tool.Model.mark_thumbnail_for_update(element_type)
+
+        pset = tool.Pset.get_element_pset(element, "BBIM_Window")
+        window_data = tool.Ifc.get().createIfcText(json.dumps(window_data, default=list))
+        ifcopenshell.api.pset.edit_pset(tool.Ifc.get(), pset=pset, properties={"Data": window_data})
+        return {"FINISHED"}
 
 
-class EnableEditingWindow(_WindowEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class EnableEditingWindow(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.enable_editing_window"
     bl_label = "Enable Editing Window"
     bl_description = "Enter edit mode to modify window parameters interactively"
-    bl_options = {"REGISTER", "UNDO"}
+    bl_options = {"REGISTER"}
 
     def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._enable_targets(context)
+        obj = context.active_object
+        assert obj
+        props = tool.Model.get_window_props(obj)
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        data = json.loads(ifcopenshell.util.element.get_pset(element, "BBIM_Window", "Data"))
+        data.update(data.pop("lining_properties"))
+        data.update(data.pop("panel_properties"))
+        data.update(tool.Model.get_constituents_props_data(element))
+
+        # required since we could load pset from .ifc and BIMWindowProperties won't be set
+        props.set_props_kwargs_from_ifc_data(data)
+
+        props.is_editing = True
+        return {"FINISHED"}
 
 
 class RemoveWindow(bpy.types.Operator, tool.Ifc.Operator):
@@ -558,8 +594,8 @@ class CycleWindowType(bpy.types.Operator, tool.Ifc.Operator, gizmo.CycleTypeMixi
     bl_label = "Cycle Window Type"
     bl_options = {"REGISTER", "UNDO"}
 
-    element_checker = tool.Parametric.is_window
-    props_getter = tool.Model.get_window_props
+    element_checker = "is_window"
+    props_getter = "get_window_props"
     type_literal = tool.Model.WindowType
     type_attr = "window_type"
 
@@ -745,7 +781,7 @@ class GizmoWindowEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
         DimensionGizmoConfig(attr_name="lining_offset", axis=(0, 1, 0), min_value=-10.0),
     ]
 
-    props_getter = tool.Model.get_window_props
+    props_getter = "get_window_props"
     gizmo_pref_name = "window"
 
     @classmethod

src/bonsai/bonsai/bim/module/model/workspace.py

@@ -841,7 +841,7 @@ class EditObjectUI:
         row = cls.layout.row(align=True)
         row.separator()
         row.label(text="Operations") if ui_context != "TOOL_HEADER" else row
-        cls.draw_regen_operations(row, ui_context)
+        cls.draw_regen_operations(row)
 
         if AuthoringData.data["active_material_usage"] == "LAYER2":
             row = cls.layout.row(align=True) if ui_context != "TOOL_HEADER" else row
@@ -962,14 +962,20 @@ class EditObjectUI:
         return row
 
     @classmethod
-    def draw_regen_operations(cls, row, ui_context):
+    def draw_regen_operations(cls, row):
+        custom_icon = custom_icon_previews.get("REGEN", custom_icon_previews["IFC"]).icon_id
+
         if AuthoringData.data["is_regenable_element"]:
-            row = cls.layout.row(align=True) if ui_context != "TOOL_HEADER" else row
-            add_layout_hotkey_operator(row, "Regen", "S_G", "Recalculate Element Geometry", ui_context)
+            op = row.operator("bim.hotkey", text="", icon_value=custom_icon)
+            description = "Recalculate Element Geometry\nHotkey: S G"
+            op.hotkey = "S_G"
+            op.description = description.strip()
 
         if PortData.data["total_ports"] > 0:
-            row = cls.layout.row(align=True) if ui_context != "TOOL_HEADER" else row
-            add_layout_hotkey_operator(row, "Regen", "S_G", bpy.ops.bim.regenerate_distribution_element.__doc__, ui_context)
+            op = row.operator("bim.hotkey", text="", icon_value=custom_icon)
+            description = f"{bpy.ops.bim.regenerate_distribution_element.__doc__}\n\nHotkey: S G"
+            op.hotkey = "S_G"
+            op.description = description.strip()
 
     @classmethod
     def draw_void(cls, context, row):
@@ -1294,15 +1300,9 @@ class Hotkey(bpy.types.Operator, tool.Ifc.Operator):
                 bpy.ops.bim.generate_space()
             return
         if self.active_material_usage == "LAYER2":
-            if element and tool.Model.has_underside_connection(element):
-                bpy.ops.bim.regenerate_wall_to_underside()
-            else:
-                bpy.ops.bim.recalculate_wall()
+            bpy.ops.bim.recalculate_wall()
         elif self.active_material_usage == "LAYER3":
             bpy.ops.bim.recalculate_slab()
-            wall_objs = tool.Model.get_connected_wall_objs(element)
-            if wall_objs:
-                core.regenerate_wall_to_underside(tool.Ifc, tool.Geometry, tool.Model, wall_objs)
         elif tool.System.get_ports(element):
             bpy.ops.bim.regenerate_distribution_element()
         elif self.active_material_usage == "PROFILE":

src/bonsai/bonsai/bim/module/project/operator.py

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import datetime
 import json
@@ -63,7 +61,6 @@ import bonsai.core.project as core
 import bonsai.tool as tool
 from bonsai.bim import export_ifc, import_ifc
 from bonsai.bim.ifc import IfcStore
-from bonsai.bim.module.model import preview_base
 from bonsai.bim.module.model.decorator import FaceAreaDecorator, PolylineDecorator
 from bonsai.bim.module.model.polyline import PolylineOperator
 from bonsai.bim.module.project.data import LinksData, ProjectLibraryData
@@ -1491,7 +1488,6 @@ class LoadLink(bpy.types.Operator, tool.Ifc.Operator):
 
     def link_ifc(self) -> Union[set[str], None]:
         blend_filepath = self.filepath_.with_suffix(".ifc.cache.blend")
-        h5_filepath = self.filepath_.with_suffix(".ifc.cache.h5")
         json_filepath = self.filepath_.with_suffix(".ifc.cache.json")
 
         def should_clear_cache() -> bool:
@@ -1906,11 +1902,11 @@ class ExportIFC(bpy.types.Operator, ExportHelper):
 
         self.use_relative_path = tool.Project.get_project_props().use_relative_project_path
         props = tool.Blender.get_bim_props()
-        filepath = props.ifc_file
-        if not filepath or self.should_save_as:
-            return ExportHelper.invoke(self, context, event)
-        self.filepath = str(tool.Blender.ensure_blender_path_is_abs(Path(filepath)))
-        return self.execute(context)
+        if (filepath := props.ifc_file) and not self.should_save_as:
+            self.filepath = str(tool.Blender.ensure_blender_path_is_abs(Path(filepath)))
+            return self.execute(context)
+
+        return ExportHelper.invoke(self, context, event)
 
     def check(self, context):
         # ExportHelper is automatically adjusting suffix to `filename_ext`.
@@ -1936,20 +1932,6 @@ class ExportIFC(bpy.types.Operator, ExportHelper):
         return {"FINISHED"}
 
     def _execute(self, context):
-        committed, failed_commits = tool.Parametric.commit_pending_edits()
-        # Previews are session-transient — discard rather than commit. Sibling
-        # gizmo polls gate on each preview's is_active flag, and a stuck flag
-        # persisted through the save would silently hide them on reload.
-        preview_base.discard_pending_previews(context.scene)
-        # Suffix is appended to the IFC save-success report below so the auto-commit
-        # info isn't immediately overwritten by the success message in Blender's
-        # status bar (only the latest self.report({"INFO"}, ...) sticks).
-        commit_suffix = f" (auto-committed {committed} pending parametric edit(s))" if committed else ""
-        if failed_commits:
-            names = ", ".join(o.name for o in failed_commits)
-            msg = f"Auto-commit failed for {len(failed_commits)} object(s): {names}"
-            print(f"Bonsai: {msg} (their drafts are NOT saved to the IFC file).")
-            self.report({"ERROR"}, msg)
         start = time.time()
         logger = logging.getLogger("ExportIFC")
         path_log = tool.Blender.get_data_dir_path("process.log")
@@ -2018,7 +2000,7 @@ class ExportIFC(bpy.types.Operator, ExportHelper):
                     blendmetadata_path = output_file + suffix
                 self.report(
                     {"INFO"},
-                    f'IFC Project "{os.path.basename(output_file)}" And Metadata File Saved to: {os.path.basename(blendmetadata_path)}{commit_suffix}',
+                    f'IFC Project "{os.path.basename(output_file)}" And Metadata File Saved to: {os.path.basename(blendmetadata_path)}',
                 )
             except Exception as e:
                 self.report({"ERROR"}, f"Failed to save blend metadata file: {e}")
@@ -2028,7 +2010,7 @@ class ExportIFC(bpy.types.Operator, ExportHelper):
                 bpy.ops.wm.save_mainfile(filepath=bpy.data.filepath)
             self.report(
                 {"INFO"},
-                f'IFC Project "{os.path.basename(output_file)}" {"" if not save_blend_file else "And Current Blend File Are"} Saved{commit_suffix}',
+                f'IFC Project "{os.path.basename(output_file)}" {"" if not save_blend_file else "And Current Blend File Are"} Saved',
             )
 
         bonsai.bim.handler.refresh_ui_data()

src/bonsai/bonsai/bim/module/project/prop.py

@@ -345,14 +345,6 @@ class BIMProjectProperties(PropertyGroup):
         ),
         default=False,
     )
-    should_cache: BoolProperty(
-        name="Cache",
-        description=(
-            "Cache loaded geometry to .h5 file in your cache directory (see in preferences) "
-            "for faster imports and geometry reloads."
-        ),
-        default=False,
-    )
     deflection_tolerance: FloatProperty(name="Deflection Tolerance", default=0.05)
     angular_tolerance: FloatProperty(name="Angular Tolerance", default=0.5)
     void_limit: IntProperty(
@@ -521,7 +513,6 @@ class BIMProjectProperties(PropertyGroup):
         should_merge_materials_by_colour: bool
         should_load_geometry: bool
         should_clean_mesh: bool
-        should_cache: bool
         deflection_tolerance: float
         angular_tolerance: float
         void_limit: int

src/bonsai/bonsai/bim/module/project/ui.py

@@ -207,8 +207,6 @@ class BIM_PT_project(Panel):
         row = self.layout.row()
         row.prop(pprops, "should_clean_mesh")
         row = self.layout.row()
-        row.prop(pprops, "should_cache")
-        row = self.layout.row()
         row.prop(pprops, "should_load_geometry")
         row = self.layout.row()
         row.prop(pprops, "should_merge_materials_by_colour")

src/bonsai/bonsai/bim/module/search/data.py

@@ -95,7 +95,7 @@ class ColourByPropertyData:
         element = tool.Ifc.get_entity(obj)
         if not element:
             return default
-        keys = [a.name() for a in element.wrapped_data.declaration().as_entity().all_attributes()]
+        keys = [a.name() for a in element.declaration().as_entity().all_attributes()]
         psets = ifcopenshell.util.element.get_psets(element)
         for pset, properties in psets.items():
             if pset.endswith("Common"):
@@ -126,7 +126,7 @@ class SelectSimilarData:
         element = tool.Ifc.get_entity(obj)
         if not element:
             return []
-        keys = [a.name() for a in element.wrapped_data.declaration().as_entity().all_attributes()]
+        keys = [a.name() for a in element.declaration().as_entity().all_attributes()]
         psets = ifcopenshell.util.element.get_psets(element, psets_only=True)
         for pset, properties in psets.items():
             if pset.endswith("Common"):

src/bonsai/bonsai/bim/module/spatial/operator.py

@@ -302,15 +302,6 @@ class SelectSimilarContainer(bpy.types.Operator):
             is_recursive=self.is_recursive,
         )
         self.is_recursive = True  # <-- forcibly reset
-
-        element = tool.Ifc.get_entity(context.active_object)
-        if element:
-            container = tool.Spatial.get_container(element)
-            if container:
-                result = f'location="{container.Name}"'
-                bpy.context.window_manager.clipboard = result
-                self.report({"INFO"}, f"({result}) was copied to the clipboard.")
-
         return {"FINISHED"}
 
 

src/bonsai/bonsai/bim/module/style/prop.py

@@ -118,19 +118,6 @@ def update_shader_graph(self: Union["Texture", "BIMStylesProperties"], context:
     tool.Loader.create_surface_style_with_textures(material, shading_data, textures_data)
 
 
-def _make_clear_null_updater(null_prop: str):
-    def _update(self: "BIMStylesProperties", context: bpy.types.Context) -> None:
-        self[null_prop] = False
-        update_shader_graph(self, context)
-
-    return _update
-
-
-update_diffuse_colour = _make_clear_null_updater("is_diffuse_colour_null")
-update_specular_colour = _make_clear_null_updater("is_specular_colour_null")
-update_specular_highlight_value = _make_clear_null_updater("is_specular_highlight_null")
-
-
 UV_MODES = [
     ("UV", "UV", _("Actual UV data presented on the geometry")),
     ("Generated", "Generated", _("Automatically-generated UV from the vertex positions of the mesh")),
@@ -234,29 +221,24 @@ class BIMStylesProperties(PropertyGroup):
     transparency: bpy.props.FloatProperty(
         name="Transparency", default=0.0, min=0.0, max=1.0, update=update_shader_graph
     )
-    is_diffuse_colour_null: BoolProperty(name="Is Null", update=update_shader_graph)
+    # TODO: do something on null?
+    is_diffuse_colour_null: BoolProperty(name="Is Null")
     diffuse_colour_class: EnumProperty(
         items=[(x, x, "") for x in get_args(ColourClass)],
         name="Diffuse Colour Class",
-        update=update_diffuse_colour,
+        update=update_shader_graph,
     )
     diffuse_colour: bpy.props.FloatVectorProperty(
-        name="Diffuse Colour",
-        subtype="COLOR",
-        default=(1, 1, 1),
-        min=0.0,
-        max=1.0,
-        size=3,
-        update=update_diffuse_colour,
+        name="Diffuse Colour", subtype="COLOR", default=(1, 1, 1), min=0.0, max=1.0, size=3, update=update_shader_graph
     )
     diffuse_colour_ratio: bpy.props.FloatProperty(
-        name="Diffuse Ratio", default=0.0, min=0.0, max=1.0, update=update_diffuse_colour
+        name="Diffuse Ratio", default=0.0, min=0.0, max=1.0, update=update_shader_graph
     )
-    is_specular_colour_null: BoolProperty(name="Is Null", update=update_shader_graph)
+    is_specular_colour_null: BoolProperty(name="Is Null")
     specular_colour_class: EnumProperty(
         items=[(x, x, "") for x in get_args(ColourClass)],
         name="Specular Colour Class",
-        update=update_specular_colour,
+        update=update_shader_graph,
         default="IfcNormalisedRatioMeasure",
     )
     specular_colour: bpy.props.FloatVectorProperty(
@@ -266,7 +248,7 @@ class BIMStylesProperties(PropertyGroup):
         min=0.0,
         max=1.0,
         size=3,
-        update=update_specular_colour,
+        update=update_shader_graph,
     )
     specular_colour_ratio: bpy.props.FloatProperty(
         name="Specular Ratio",
@@ -274,16 +256,16 @@ class BIMStylesProperties(PropertyGroup):
         default=0.0,
         min=0.0,
         max=1.0,
-        update=update_specular_colour,
+        update=update_shader_graph,
     )
-    is_specular_highlight_null: BoolProperty(name="Is Null", update=update_shader_graph)
+    is_specular_highlight_null: BoolProperty(name="Is Null")
     specular_highlight: bpy.props.FloatProperty(
         name="Specular Highlight",
         description="Used as Roughness value in PHYSICAL Reflectance Method",
         default=0.0,
         min=0.0,
         max=1.0,
-        update=update_specular_highlight_value,
+        update=update_shader_graph,
     )
     reflectance_method: EnumProperty(
         name="Reflectance Method",

src/bonsai/bonsai/bim/module/type/ui.py

@@ -151,8 +151,7 @@ class BIM_PT_type_attributes(Panel):
                 row = layout.row(align=True)
                 row.label(text=attribute["name"])
                 value = get_display_value(attribute["value"])
-                op = row.operator("bim.select_similar", text=value, icon="NONE", emboss=False)
-                op.key = "type." + attribute["name"]
+                row.label(text=value)
 
 
 def add_object_button(self, context):

src/bonsai/bonsai/bim/module/void/operator.py

@@ -207,7 +207,6 @@ class RemoveOpening(bpy.types.Operator, tool.Ifc.Operator):
                     representation=representation,
                 )
         tool.Geometry.unlock_scale_object_with_openings(obj)
-        tool.Geometry.clear_cache(element)
         return {"FINISHED"}
 
 

src/bonsai/bonsai/bim/parametric_lifecycle.py

@@ -1,611 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Bonsai 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
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Shared operator mixins for parametric-edit operators.
-
-Edit-lifecycle mixins (Enable / Finish / Cancel):
-    `FeatureModifierEditMixin` — door, window (BBIM_<Type> pset; nested
-        lining/panel properties; Finish + Cancel route through
-        ``ifcopenshell.api.feature``).
-    `PathPreservingEditMixin` — railing, roof (path_data preserved across
-        edit; only general kwargs are user-editable).
-
-Pattern selection (which approach a new feature should adopt):
-    Every parametric edit lifecycle commits to one of three patterns. Pick by
-    answering "does the feature share the Enable→Finish→Cancel shape that
-    one of the existing mixins already encodes?":
-
-    A. Inherit one of the shared mixins below and route through
-       `tool.Parametric.build_edit_lifecycle`:
-
-       - `FeatureModifierEditMixin` when the feature stores its pset as
-         `{general fields} + {lining_properties: {...}} + {panel_properties: {...}}`
-         and Finish must call a per-type `update_<type>_modifier_representation`.
-
-       - `PathPreservingEditMixin` when the feature's pset carries a
-         `path_data` field that survives general-kwarg edits untouched, with
-         a separate Enable/Finish/Cancel lifecycle for path editing itself.
-
-    B. Write a per-feature mixin that subclasses `ParametricEditMixinBase`
-       and provides `_enable_targets` / `_finish_targets` / `_cancel_targets`,
-       then route through `build_edit_lifecycle`. Pick this when the
-       feature's pset roundtrip or representation handling diverges from the
-       shared mixins but the Enable→Finish→Cancel shape still fits.
-
-    C. Declare standalone Enable/Finish/Cancel Operator subclasses (no
-       factory) when the feature's parameter-change logic is sufficiently
-       unique that even a per-feature mixin would force optional hooks or
-       dead branches. Such operators MUST call the matrix_world drift
-       helpers (`tool.Geometry.commit_placement_if_moved` on Enable/Finish,
-       `tool.Geometry.restore_or_rebaseline_placement` on Cancel) — the
-       drift contract is enforced uniformly regardless of which pattern the
-       operators adopt.
-
-    The authoritative list of registered parametric types — and which use
-    `build_edit_lifecycle` vs. standalone operators — lives in
-    `tool/parametric.py`'s `EDIT_TYPES` and is enforced by the registry
-    contract tests in `test/bim/test_parametric_registry.py`.
-
-This module hosts operator-side mixins that import ``bonsai.tool`` freely.
-The lightweight parametric registry consumed at addon-enable time must stay
-free of such imports and lives separately in ``tool/parametric.py``."""
-
-from __future__ import annotations
-
-import json
-from collections.abc import Callable
-from typing import ClassVar, get_args
-
-import bpy
-import ifcopenshell.util.element
-from bpy.app.handlers import persistent
-from ifcopenshell import entity_instance
-
-import bonsai.core.geometry
-import bonsai.tool as tool
-
-
-class ParametricEditMixinBase:
-    """Common scaffolding for parametric edit-lifecycle mixins.
-
-    Each per-type subclass provides four hooks:
-
-        ``pset_name``: BBIM_<Type> pset identifier
-        ``_is_element_type(element)``: IFC element predicate
-        ``_get_props(obj)``: PropertyGroup accessor
-        ``_iter_targets(context)``: list of objects to act on (default: ``[active_object]``)
-
-    Drift handling is built in: pre-edit matrix_world drift commits to IFC on
-    Enable, in-edit drag commits on Finish, and Cancel restores the committed
-    IFC placement. This prevents an uncommitted drag from disappearing on
-    Finish or snapping back on Cancel.
-
-    Operator subclasses call one of ``_enable_targets`` / ``_finish_targets`` /
-    ``_cancel_targets`` from their ``_execute`` method."""
-
-    pset_name: ClassVar[str]
-
-    @classmethod
-    def _iter_targets(cls, context: bpy.types.Context) -> list[bpy.types.Object]:
-        obj = context.active_object
-        return [obj] if obj else []
-
-    @classmethod
-    def _is_element_type(cls, element: entity_instance) -> bool:
-        raise NotImplementedError
-
-    @classmethod
-    def _get_props(cls, obj: bpy.types.Object):
-        raise NotImplementedError
-
-    @classmethod
-    def _resolve(cls, obj: bpy.types.Object):
-        """Look up ``(element, props)`` for ``obj`` if it matches this type, else None.
-
-        Common predicate guard for every lifecycle method — collapses the
-        ``element = tool.Ifc.get_entity(obj); assert element; if not is_<type>(element): return``
-        triplet into one call."""
-        element = tool.Ifc.get_entity(obj)
-        if not element or not cls._is_element_type(element):
-            return None
-        return element, cls._get_props(obj)
-
-    @classmethod
-    def _handle_drift_on_enable(cls, obj: bpy.types.Object) -> None:
-        tool.Geometry.commit_placement_if_moved(obj, apply_scale=False)
-
-    @classmethod
-    def _handle_drift_on_finish(cls, obj: bpy.types.Object) -> None:
-        tool.Geometry.commit_placement_if_moved(obj)
-
-    @classmethod
-    def _handle_drift_on_cancel(cls, obj: bpy.types.Object, element: entity_instance) -> None:
-        tool.Geometry.restore_or_rebaseline_placement(obj, element)
-
-    @classmethod
-    def _mark_type_thumbnail_dirty(cls, element: entity_instance) -> None:
-        """Mark the element's type's preview thumbnail for refresh so the
-        property-panel preview reflects post-edit geometry. No-op for
-        occurrences without a backing type."""
-        element_type = ifcopenshell.util.element.get_type(element)
-        if element_type:
-            tool.Model.mark_thumbnail_for_update(element_type)
-
-
-class FeatureModifierEditMixin(ParametricEditMixinBase):
-    """Lifecycle for door- and window-style parametric modifier operators.
-
-    Enable:
-        Read BBIM_<Type> pset JSON → unwrap ``lining_properties`` and
-        ``panel_properties`` → merge constituents data → set draft props →
-        ``is_editing = True``.
-
-    Finish:
-        Gather ``general / lining / panel`` kwargs (project units) → nest →
-        ``is_editing = False`` → call ``_update_modifier_representation`` →
-        mark thumbnail → write back to BBIM_<Type> pset via
-        ``ifcopenshell.api.pset.edit_pset``.
-
-    Cancel:
-        Read BBIM_<Type> pset JSON → unwrap → restore draft props →
-        ``switch_representation`` to the Body representation →
-        ``is_editing = False``."""
-
-    @classmethod
-    def _update_modifier_representation(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        """Hook: call the per-type ``update_<type>_modifier_representation``."""
-        raise NotImplementedError
-
-    @classmethod
-    def _enable_one(cls, obj: bpy.types.Object) -> None:
-        resolved = cls._resolve(obj)
-        if resolved is None:
-            return
-        element, props = resolved
-        cls._handle_drift_on_enable(obj)
-        data = json.loads(ifcopenshell.util.element.get_pset(element, cls.pset_name, "Data"))
-        data.update(data.pop("lining_properties"))
-        data.update(data.pop("panel_properties"))
-        data.update(tool.Model.get_constituents_props_data(element))
-        # required since the pset can be loaded from .ifc and the PropertyGroup
-        # would otherwise still hold its default values
-        props.set_props_kwargs_from_ifc_data(data)
-        props.is_editing = True
-
-    @classmethod
-    def _finish_one(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        resolved = cls._resolve(obj)
-        if resolved is None:
-            return
-        element, props = resolved
-        data = props.get_general_kwargs(convert_to_project_units=True)
-        data["lining_properties"] = props.get_lining_kwargs(convert_to_project_units=True)
-        data["panel_properties"] = props.get_panel_kwargs(convert_to_project_units=True)
-        cls._update_modifier_representation(obj, context)
-        cls._mark_type_thumbnail_dirty(element)
-        tool.Pset.write_bbim_data(element, cls.pset_name, data)
-        cls._handle_drift_on_finish(obj)
-        # Set only on success: if any IFC op above raised, the user's draft survives for retry.
-        props.is_editing = False
-
-    @classmethod
-    def _cancel_one(cls, obj: bpy.types.Object) -> None:
-        resolved = cls._resolve(obj)
-        if resolved is None:
-            return
-        element, props = resolved
-        # Cancel must always clear is_editing — leaving it True after a
-        # restore-failure would block the user from re-entering edit mode and
-        # the next save's stale-flag heal would silently roll back the
-        # cancellation. Wrap the restore in try/finally so the flag flips
-        # even on partial failure.
-        try:
-            data = json.loads(ifcopenshell.util.element.get_pset(element, cls.pset_name, "Data"))
-            data.update(data.pop("lining_properties"))
-            data.update(data.pop("panel_properties"))
-            props.set_props_kwargs_from_ifc_data(data)
-            body = tool.Geometry.get_body_representation(element)
-            bonsai.core.geometry.switch_representation(tool.Ifc, tool.Geometry, obj=obj, representation=body)
-            cls._handle_drift_on_cancel(obj, element)
-        finally:
-            props.is_editing = False
-
-    def _enable_targets(self, context: bpy.types.Context) -> set[str]:
-        for obj in self._iter_targets(context):
-            self._enable_one(obj)
-        return {"FINISHED"}
-
-    def _finish_targets(self, context: bpy.types.Context) -> set[str]:
-        for obj in self._iter_targets(context):
-            self._finish_one(obj, context)
-        return {"FINISHED"}
-
-    def _cancel_targets(self, context: bpy.types.Context) -> set[str]:
-        for obj in self._iter_targets(context):
-            self._cancel_one(obj)
-        return {"FINISHED"}
-
-
-class PathPreservingEditMixin(ParametricEditMixinBase):
-    """Lifecycle for railing- and roof-style parametric modifier operators.
-
-    Distinctive: ``path_data`` is part of the BBIM_<Type> pset but is **not**
-    user-editable through this lifecycle — it survives the edit untouched, only
-    general kwargs are diffed. (Path editing has its own separate operator
-    pair, ``Enable/Finish/CancelEditing<Type>Path``, out of scope here.)
-
-    Enable:
-        Fetch pset data via ``tool.Model.get_modeling_bbim_pset_data`` → set
-        draft props → ``is_editing = True``. The subclass post-load hook
-        can reshape the dict to fit the PropertyGroup's storage layout
-        (e.g., pre-serialise a structured pset value to JSON for a
-        ``StringProperty`` field).
-
-    Finish:
-        Read fresh pset → keep ``path_data`` → gather ``general`` kwargs
-        (project units) → reassemble → ``is_editing = False`` → call
-        ``_update_pset`` (per-type pset writer) → call ``_update_modifier_ifc_data``
-        (per-type geometry commit).
-
-    Cancel:
-        Read fresh pset → restore draft props → call
-        ``_restore_viewport_after_cancel`` (per-type viewport restore — typically
-        rebuilds the bmesh preview, but subclasses may load a different
-        representation entirely) → ``is_editing = False``."""
-
-    @classmethod
-    def _post_load_data(cls, data: dict) -> dict:
-        """Hook: optionally transform the pset data dict after loading and before
-        passing to ``set_props_kwargs_from_ifc_data``. Default: pass-through.
-
-        Override when the PropertyGroup stores a structured pset field as a
-        serialised primitive — e.g., a list/dict value mapped onto a
-        ``StringProperty`` requires JSON-encoding here."""
-        return data
-
-    @classmethod
-    def _update_pset(cls, element: entity_instance, data: dict) -> None:
-        """Hook: per-type pset writer (``update_bbim_<type>_pset``)."""
-        raise NotImplementedError
-
-    @classmethod
-    def _update_modifier_ifc_data(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        """Hook: per-type ``update_<type>_modifier_ifc_data`` — commits the
-        modified geometry to IFC. Signature accepts ``(obj, context)`` so
-        subclasses can forward either argument to their existing helper."""
-        raise NotImplementedError
-
-    @classmethod
-    def _restore_viewport_after_cancel(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        """Hook: restore the viewport mesh to match the just-restored draft props.
-
-        Most subclasses rebuild a bmesh preview from props. Subclasses whose
-        committed IFC representation diverges from the preview may switch
-        the mesh back to the committed representation instead."""
-        raise NotImplementedError
-
-    @classmethod
-    def _enable_one(cls, obj: bpy.types.Object) -> None:
-        resolved = cls._resolve(obj)
-        if resolved is None:
-            return
-        _element, props = resolved
-        cls._handle_drift_on_enable(obj)
-        data = tool.Model.get_modeling_bbim_pset_data(obj, cls.pset_name)["data_dict"]
-        data = cls._post_load_data(data)
-        props.set_props_kwargs_from_ifc_data(data)
-        props.is_editing = True
-
-    @classmethod
-    def _finish_one(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        resolved = cls._resolve(obj)
-        if resolved is None:
-            return
-        element, props = resolved
-        pset_data = tool.Model.get_modeling_bbim_pset_data(obj, cls.pset_name)
-        stored = pset_data["data_dict"]
-        data = props.get_general_kwargs(convert_to_project_units=True)
-        data["path_data"] = stored["path_data"]
-        # Skip the pset commit when the draft is identical to the stored pset:
-        # an Enable → Finish-without-changes cycle should not pollute the
-        # representation list or burn an undo entry. Drift commit still runs
-        # unconditionally — matrix_world drift is independent of pset content.
-        if data != stored:
-            cls._update_pset(element, data)
-            cls._update_modifier_ifc_data(obj, context)
-            cls._mark_type_thumbnail_dirty(element)
-        cls._handle_drift_on_finish(obj)
-        # Set only on success: if any IFC op above raised, the user's draft survives for retry.
-        props.is_editing = False
-
-    @classmethod
-    def _cancel_one(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        resolved = cls._resolve(obj)
-        if resolved is None:
-            return
-        element, props = resolved
-        try:
-            pset_data = tool.Model.get_modeling_bbim_pset_data(obj, cls.pset_name)
-            stored = pset_data["data_dict"]
-            draft = props.get_general_kwargs(convert_to_project_units=True)
-            draft["path_data"] = stored["path_data"]
-            nothing_changed = draft == stored
-            data = cls._post_load_data(stored)
-            props.set_props_kwargs_from_ifc_data(data)
-            # Skip the viewport rebuild on a no-op cancel: the mesh on screen is
-            # still the committed representation, and the per-type viewport-restore
-            # hook may be expensive (some subclasses reload a high-poly IFC
-            # representation rather than rebuild a preview mesh).
-            if not nothing_changed:
-                cls._restore_viewport_after_cancel(obj, context)
-            cls._handle_drift_on_cancel(obj, element)
-        finally:
-            # Always clear the flag — see ``FeatureModifierEditMixin._cancel_one``
-            # for the rationale.
-            props.is_editing = False
-
-    def _enable_targets(self, context: bpy.types.Context) -> set[str]:
-        for obj in self._iter_targets(context):
-            self._enable_one(obj)
-        return {"FINISHED"}
-
-    def _finish_targets(self, context: bpy.types.Context) -> set[str]:
-        for obj in self._iter_targets(context):
-            self._finish_one(obj, context)
-        return {"FINISHED"}
-
-    def _cancel_targets(self, context: bpy.types.Context) -> set[str]:
-        for obj in self._iter_targets(context):
-            self._cancel_one(obj, context)
-        return {"FINISHED"}
-
-
-# --- Type-selection mixins (Cycle / Pick) ------------------------------------
-
-
-class TypeAccessorBase:
-    """Shared contract for operators that resolve and write a Literal type
-    attribute on a Bonsai PropertyGroup.
-
-    Subclasses define ``element_checker``, ``props_getter``, ``type_literal``,
-    ``type_attr``; ``skip_element_check`` bypasses element validation. Concrete
-    subclasses (``CycleTypeMixin``, ``PickTypeMixin``) add the interaction
-    shape on top.
-
-    Test doubles must be set on the operator instance — the predicates are
-    bound at class-definition time, so patching the underlying tool module
-    has no effect."""
-
-    element_checker: Callable[[entity_instance], bool]
-    props_getter: Callable[[bpy.types.Object], bpy.types.PropertyGroup]
-    type_literal: type
-    type_attr: str
-    skip_element_check: bool = False
-
-    def _resolve_target(self, context: bpy.types.Context) -> bpy.types.Object | None:
-        """Return the active object iff it passes ``element_checker`` (or the
-        check is skipped). ``None`` signals the operator should bail with
-        ``{'CANCELLED'}``."""
-        obj = context.active_object
-        if not obj:
-            return None
-        if not self.skip_element_check:
-            element = tool.Ifc.get_entity(obj)
-            if not element or not self.element_checker(element):
-                return None
-        return obj
-
-
-class CycleTypeMixin(TypeAccessorBase):
-    """Operator mixin that cycles through ``type_literal``'s values.
-
-    Shift-click reverses direction."""
-
-    reverse: bpy.props.BoolProperty(name="Reverse", default=False, options={"HIDDEN", "SKIP_SAVE"})
-
-    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:
-        self.reverse = event.shift
-        return self.execute(context)
-
-    def _cycle_type(self, context: bpy.types.Context) -> set[str]:
-        obj = self._resolve_target(context)
-        if obj is None:
-            return {"CANCELLED"}
-
-        props = self.props_getter(obj)
-        types = get_args(self.type_literal)
-        current = getattr(props, self.type_attr)
-        idx = types.index(current) if current in types else 0
-        direction = -1 if self.reverse else 1
-        setattr(props, self.type_attr, types[(idx + direction) % len(types)])
-
-        return {"FINISHED"}
-
-
-class PickTypeMixin(TypeAccessorBase):
-    """Operator mixin that opens a popup menu listing ``type_literal``'s values.
-
-    Empty ``value`` ⇒ ``invoke`` opens the popup; non-empty ⇒ the user picked
-    an item and ``_pick_type`` applies it.
-
-    When invoked mid-click (e.g. from a gizmo's ``target_set_operator``), the
-    menu opens only after the originating ``LEFTMOUSE`` releases. Otherwise
-    the still-pressed click flows straight into Blender's drag-through-pick
-    gesture and the menu commits whichever item the cursor drifts over on
-    release. Other invocation paths (command-palette / F3, EXEC_DEFAULT, F6
-    redo) bypass the wait and open the menu immediately.
-
-    The ``value`` StringProperty is declared on this mixin but registered via
-    the concrete Operator subclass's MRO scan — do not instantiate the mixin
-    standalone."""
-
-    # Carries the picked value through invoke→execute; empty default
-    # distinguishes "open popup" from "apply".
-    value: bpy.props.StringProperty(default="", options={"HIDDEN", "SKIP_SAVE"})
-
-    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:
-        """Open the picker menu, or apply a value that was preset by a
-        menu-item click.
-
-        Routing through ``execute()`` keeps subclass IFC-transaction wrapping
-        in the loop and means F6 redo / ``EXEC_DEFAULT`` reach the apply path."""
-        if self.value:
-            return self.execute(context)
-
-        if self._resolve_target(context) is None:
-            return {"CANCELLED"}
-
-        if event.value == "PRESS":
-            context.window_manager.modal_handler_add(self)
-            return {"RUNNING_MODAL"}
-        return self._open_picker(context)
-
-    def modal(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:
-        if event.type == "LEFTMOUSE" and event.value == "RELEASE":
-            self._open_picker(context)
-            # INTERFACE does not remove a modal handler; only FINISHED /
-            # CANCELLED do.
-            return {"CANCELLED"}
-        if event.type in {"RIGHTMOUSE", "ESC"}:
-            return {"CANCELLED"}
-        return {"RUNNING_MODAL"}
-
-    def _open_picker(self, context: bpy.types.Context) -> set[str]:
-        bl_idname = self.bl_idname
-        values = list(get_args(self.type_literal))
-
-        def draw(menu_self, _menu_context):
-            layout = menu_self.layout
-            for v in values:
-                op = layout.operator(bl_idname, text=v)
-                op.value = v
-
-        context.window_manager.popup_menu(draw, title=self.bl_label, icon="MENU_PANEL")
-        # The type change is a two-step interaction: this invocation just OPENS
-        # the menu (no state change yet); a SECOND invocation fires when the
-        # user clicks a menu item — that one writes ``props.<type_attr>`` and
-        # returns FINISHED. By returning INTERFACE here (and not FINISHED), the
-        # menu-open step is excluded from Blender's undo stack so the user
-        # gets exactly ONE undo entry per type change. If we returned FINISHED
-        # here too, the stack would gain a no-op "opened the menu" entry that
-        # Ctrl+Z would dismiss before reverting the actual type change —
-        # confusing UX where the first Ctrl+Z appears to do nothing.
-        return {"INTERFACE"}
-
-    def _pick_type(self, context: bpy.types.Context) -> set[str]:
-        if not self.value:
-            # No-op rather than re-open the menu, so command-palette misuse
-            # doesn't infinite-loop.
-            return {"CANCELLED"}
-
-        obj = self._resolve_target(context)
-        if obj is None:
-            return {"CANCELLED"}
-
-        if self.value not in get_args(self.type_literal):
-            self.report({"WARNING"}, f"Unknown {self.type_attr}: {self.value!r}")
-            return {"CANCELLED"}
-
-        props = self.props_getter(obj)
-        setattr(props, self.type_attr, self.value)
-        return {"FINISHED"}
-
-
-# --- Undo-resync registry ----------------------------------------------------
-#
-# Per-type regenerators called from ``resync_parametric_drafts_after_undo``
-# (wired into ``bim/handler.py:undo_post`` and ``redo_post``) so the preview
-# mesh of an in-progress parametric draft repaints after Ctrl+Z / Ctrl+Shift+Z.
-#
-# Each regenerator is a one-line lazy-import + call. Lazy imports because
-# ``bonsai.bim.parametric_lifecycle`` loads before ``bim/module/model/*``
-# at addon enable; a module-level import would cycle. Each function-local
-# import lands at first call, after the feature module has registered.
-#
-# Types with no entry — door, window, railing, etc. — are IFC-derived: undo
-# of an IFC mutation already restores the entity, and ``switch_representation``
-# repaints the mesh as a side effect of the next refresh. They don't need a
-# bespoke preview regenerator.
-
-
-def _wall_undo_regenerator(obj: bpy.types.Object) -> None:
-    from bonsai.bim.module.model.wall import regenerate_wall_mesh_from_props
-
-    regenerate_wall_mesh_from_props(obj)
-
-
-def _stair_undo_regenerator(obj: bpy.types.Object) -> None:
-    from bonsai.bim.module.model.stair import regenerate_stair_mesh
-
-    regenerate_stair_mesh(obj)
-
-
-def _roof_undo_regenerator(obj: bpy.types.Object) -> None:
-    from bonsai.bim.module.model.roof import update_roof_modifier_bmesh
-
-    update_roof_modifier_bmesh(obj)
-
-
-UNDO_REGENERATORS: dict[str, Callable[[bpy.types.Object], None]] = {
-    "wall": _wall_undo_regenerator,
-    "stair": _stair_undo_regenerator,
-    "roof": _roof_undo_regenerator,
-}
-
-
-def resync_parametric_drafts_after_undo() -> None:
-    """Re-render preview meshes for every parametric draft currently active.
-
-    Walks all objects, skips any not in a registered parametric edit,
-    dispatches to the per-type regenerator in ``UNDO_REGENERATORS``. A type
-    without an entry is left alone — its preview is either already correct
-    (IFC-derived) or has no draft preview mesh."""
-    for obj in bpy.data.objects:
-        feature = tool.Parametric.is_object_editing(obj)
-        if feature is None:
-            continue
-        regenerator = UNDO_REGENERATORS.get(feature.name)
-        if regenerator is None:
-            continue
-        regenerator(obj)
-    tool.Blender.update_all_viewports()
-
-
-@persistent
-def _resync_on_undo(scene: bpy.types.Scene) -> None:
-    resync_parametric_drafts_after_undo()
-
-
-def install_parametric_lifecycle_handlers() -> None:
-    """Append the undo-resync callback to undo_post and redo_post; idempotent.
-
-    Caller must invoke this AFTER appending the central undo/redo handlers so
-    regenerators see restored IFC state — bpy.app.handlers fire in append order."""
-    for hook in (bpy.app.handlers.undo_post, bpy.app.handlers.redo_post):
-        if _resync_on_undo not in hook:
-            hook.append(_resync_on_undo)
-
-
-def uninstall_parametric_lifecycle_handlers() -> None:
-    for hook in (bpy.app.handlers.undo_post, bpy.app.handlers.redo_post):
-        try:
-            hook.remove(_resync_on_undo)
-        except ValueError:
-            pass

src/bonsai/bonsai/bim/ui.py

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 import os
 import platform
@@ -382,76 +380,6 @@ class GizmoPreferencesStair(bpy.types.PropertyGroup):
         cycle: bool
 
 
-class GizmoPreferencesWall(bpy.types.PropertyGroup):
-    """Property group for wall gizmo visibility settings."""
-
-    length: BoolProperty(
-        name="Length",
-        default=True,
-        description="Show the length dimension gizmo along the wall axis.",
-    )
-    height: BoolProperty(
-        name="Height",
-        default=True,
-        description="Show the height dimension gizmo at the wall's start endpoint.",
-    )
-    height_end: BoolProperty(
-        name="Height (far end, walls > 5m)",
-        default=True,
-        description=(
-            "Show a second height gizmo at the wall's far end so long walls don't "
-            "require panning to reach the handle."
-        ),
-    )
-    x_angle: BoolProperty(
-        name="Slope",
-        default=True,
-        description="Show the slope gizmo at the wall top measuring horizontal displacement of the top face.",
-    )
-    cycle: BoolProperty(
-        name="Cycle Offset Baseline",
-        default=True,
-        description="Show the baseline-state icon (Exterior / Centreline / Interior) in the editing icon row.",
-    )
-    scissors: BoolProperty(
-        name="Split at cursor",
-        default=True,
-        description="Show the split icon at the 3D cursor when it lies within the wall's length range.",
-    )
-    extend: BoolProperty(
-        name="Extend length to cursor X",
-        default=True,
-        description="Show the extend-length icon at the 3D cursor's projected wall-axis X.",
-    )
-    extend_height: BoolProperty(
-        name="Extend height to cursor Z",
-        default=True,
-        description="Show the extend-height icon at the 3D cursor's Z, on the wall axis.",
-    )
-    rotate: BoolProperty(
-        name="Rotate 90°",
-        default=True,
-        description="Show the rotate-90 icon in the editing icon row (rotates the wall around its Z axis).",
-    )
-    toggle_openings: BoolProperty(
-        name="Toggle Openings",
-        default=True,
-        description="Show the toggle-openings icon next to the pen (toggles opening fill visibility in the viewport).",
-    )
-
-    if TYPE_CHECKING:
-        length: bool
-        height: bool
-        height_end: bool
-        x_angle: bool
-        cycle: bool
-        scissors: bool
-        extend: bool
-        extend_height: bool
-        rotate: bool
-        toggle_openings: bool
-
-
 class GizmoPreferences(bpy.types.PropertyGroup):
     """Property group for all gizmo visibility settings."""
 
@@ -463,14 +391,12 @@ class GizmoPreferences(bpy.types.PropertyGroup):
     door: bpy.props.PointerProperty(type=GizmoPreferencesDoor)
     window: bpy.props.PointerProperty(type=GizmoPreferencesWindow)
     stair: bpy.props.PointerProperty(type=GizmoPreferencesStair)
-    wall: bpy.props.PointerProperty(type=GizmoPreferencesWall)
 
     if TYPE_CHECKING:
         draw_gizmos_in_3d_viewport: bool
         door: GizmoPreferencesDoor
         window: GizmoPreferencesWindow
         stair: GizmoPreferencesStair
-        wall: GizmoPreferencesWall
 
 
 class DocPreferences(bpy.types.PropertyGroup):
@@ -739,10 +665,6 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
         name="Disable Undo When Saving (Faster saves, no undo for you!)", default=False
     )
     should_stream: BoolProperty(name="Stream Data From IFC-SPF (Only for advanced users)", default=False)
-    should_always_cache: BoolProperty(
-        name="Always Cache Geometry",
-        description="Whether to always cache geometry regardless of 'Cache' setting during Advanced Project Load.",
-    )
     occurrence_name_style: bpy.props.EnumProperty(
         items=[("CLASS", "By Class", ""), ("TYPE", "By Type", ""), ("CUSTOM", "Custom", "")],
         name="Occurrence Name Style",
@@ -851,7 +773,6 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
         bsdd_baseurl: str
         should_disable_undo_on_save: bool
         should_stream: bool
-        should_always_cache: bool
         occurrence_name_style: Literal["CLASS", "TYPE", "CUSTOM"]
         occurrence_name_function: str
         gizmos: GizmoPreferences
@@ -923,56 +844,49 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
         bonsai.bim.helper.draw_expandable_panel(box, context, "Parametric Door", self.draw_door_gizmo_parameters)
         bonsai.bim.helper.draw_expandable_panel(box, context, "Parametric Window", self.draw_window_gizmo_parameters)
         bonsai.bim.helper.draw_expandable_panel(box, context, "Parametric Stair", self.draw_stair_gizmo_parameters)
-        bonsai.bim.helper.draw_expandable_panel(box, context, "Parametric Wall", self.draw_wall_gizmo_parameters)
-
-    def _draw_parametric_gizmo_parameters(
-        self,
-        layout: bpy.types.UILayout,
-        gizmo_pg: bpy.types.PropertyGroup,
-        dimension_gizmo_class: type,
-        special_gizmo_names: frozenset[str] = frozenset(),
-    ) -> None:
-        """Draw the per-element gizmo visibility toggles. Surfaces every annotation
-        on ``gizmo_pg`` that either maps to one of ``dimension_gizmo_class``'s
-        dimension gizmos or is named in ``special_gizmo_names`` (non-dimension icons
-        like baseline cycle, scissors, rotate, …)."""
-        visible_names = {p.attr_name for p in dimension_gizmo_class.dimension_gizmo_props} | special_gizmo_names
-        try:
-            annotations = gizmo_pg.__annotations__
-        except AttributeError:
-            annotations = type(gizmo_pg).__annotations__
-        for prop in annotations:
-            if prop in visible_names:
-                layout.prop(gizmo_pg, prop)
 
     def draw_door_gizmo_parameters(self, layout: bpy.types.UILayout, context: bpy.types.Context) -> None:
         from bonsai.bim.module.model.door import GizmoDoorEdition
 
-        self._draw_parametric_gizmo_parameters(
-            layout, self.gizmos.door, GizmoDoorEdition, frozenset({"swing_arc", "flip_arc"})
-        )
+        door_gizmos = self.gizmos.door
+        gizmo_prop_names = {p.attr_name for p in GizmoDoorEdition.dimension_gizmo_props}
+        # Add special gizmos not in dimension_gizmo_props
+        gizmo_prop_names.update(("swing_arc", "flip_arc"))
+        try:
+            annotations = door_gizmos.__annotations__
+        except AttributeError:
+            annotations = type(door_gizmos).__annotations__
+        for prop in annotations:
+            if prop in gizmo_prop_names:
+                layout.prop(door_gizmos, prop)
 
     def draw_window_gizmo_parameters(self, layout: bpy.types.UILayout, context: bpy.types.Context) -> None:
         from bonsai.bim.module.model.window import GizmoWindowEdition
 
-        self._draw_parametric_gizmo_parameters(layout, self.gizmos.window, GizmoWindowEdition)
+        window_gizmos = self.gizmos.window
+        gizmo_prop_names = {p.attr_name for p in GizmoWindowEdition.dimension_gizmo_props}
+        try:
+            annotations = window_gizmos.__annotations__
+        except AttributeError:
+            annotations = type(window_gizmos).__annotations__
+        for prop in annotations:
+            if prop in gizmo_prop_names:
+                layout.prop(window_gizmos, prop)
 
     def draw_stair_gizmo_parameters(self, layout: bpy.types.UILayout, context: bpy.types.Context) -> None:
         from bonsai.bim.module.model.stair import GizmoStairEdition
 
-        self._draw_parametric_gizmo_parameters(
-            layout, self.gizmos.stair, GizmoStairEdition, frozenset({"lock", "plus", "minus", "cycle"})
-        )
-
-    def draw_wall_gizmo_parameters(self, layout: bpy.types.UILayout, context: bpy.types.Context) -> None:
-        from bonsai.bim.module.model.wall import GizmoWallEdition
-
-        self._draw_parametric_gizmo_parameters(
-            layout,
-            self.gizmos.wall,
-            GizmoWallEdition,
-            frozenset({"cycle", "scissors", "extend", "extend_height", "rotate", "toggle_openings"}),
-        )
+        stair_gizmos = self.gizmos.stair
+        gizmo_prop_names = {p.attr_name for p in GizmoStairEdition.dimension_gizmo_props}
+        # Add special gizmos not in dimension_gizmo_props
+        special_gizmo_names = {"lock", "plus", "minus", "cycle"}
+        try:
+            annotations = stair_gizmos.__annotations__
+        except AttributeError:
+            annotations = type(stair_gizmos).__annotations__
+        for prop in annotations:
+            if prop in gizmo_prop_names or prop in special_gizmo_names:
+                layout.prop(stair_gizmos, prop)
 
     def draw_model_settings(self, layout: bpy.types.UILayout, context: bpy.types.Context) -> None:
         layout.prop(self, "occurrence_name_style")
@@ -1057,7 +971,6 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
         layout.prop(self, "opening_focus_opacity")
         layout.prop(self, "should_disable_undo_on_save")
         layout.prop(self, "should_stream")
-        layout.prop(self, "should_always_cache")
         layout.label(text="bSDD:")
         layout.prop(self, "bsdd_load_preview_dictionaries")
         layout.prop(self, "bsdd_load_inactive_dictionaries")

src/bonsai/bonsai/core/aggregate.py

@@ -93,8 +93,6 @@ def enter_aggregate_mode(
     aggregator: type[tool.Aggregate],
     obj: bpy.types.Object,
 ):
-    if not aggregator.get_aggregate_props().in_aggregate_mode:
-        aggregator.save_previous_selection()
     aggregator.update_previous_aggregate_mode_state()
     if aggregator.get_higher_aggregate():
         aggregator.disable_aggregate_mode()
@@ -109,7 +107,6 @@ def exit_aggregate_mode(aggregator: type[tool.Aggregate]):
         aggregator.enable_aggregate_mode(new_obj)
     else:
         aggregator.disable_aggregate_mode()
-        aggregator.restore_previous_selection()
 
 
 class IncompatibleAggregateError(Exception):

src/bonsai/bonsai/core/debug.py

@@ -30,10 +30,6 @@ def parse_express(debug: type[tool.Debug], filename: str) -> None:
     debug.add_schema_identifier(debug.load_express(filename))
 
 
-def purge_hdf5_cache(debug: type[tool.Debug]) -> None:
-    debug.purge_hdf5_cache()
-
-
 def purge_unused_elements(ifc: type[tool.Ifc], debug: type[tool.Debug], ifc_class: str) -> int:
     ifc_file = ifc.get()
     unused_elements = [i for i in ifc_file.by_type(ifc_class) if ifc_file.get_total_inverses(i) == 0]

src/bonsai/bonsai/core/geometry.py

@@ -44,7 +44,6 @@ def edit_object_placement(
     element = ifc.get_entity(obj)
     if not element:
         return
-    geometry.clear_cache(element)
     if apply_scale:
         geometry.clear_scale(obj)
     geometry.get_blender_offset_type(obj)
@@ -125,7 +124,6 @@ def switch_representation(
 
     element = ifc.get_entity(obj)
     assert element
-    geometry.clear_cache(element)
     geometry.reimport_element_representations(obj, representation, apply_openings=apply_openings)
 
 

src/bonsai/bonsai/core/model.py

@@ -15,13 +15,10 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 from __future__ import annotations
 
-import math
-from typing import TYPE_CHECKING, Any, Literal, Optional
+from typing import TYPE_CHECKING, Literal, Optional
 
 if TYPE_CHECKING:
     import bpy
@@ -34,24 +31,6 @@ if TYPE_CHECKING:
     OffsetType = Literal["CENTER", "EXTERIOR", "INTERIOR"]
 
 
-# Arc sample count for fillet preview polylines. 24 samples produces a visually
-# smooth arc at common viewport scales without bloating the GPU batch.
-FILLET_DEFAULT_ARC_RESOLUTION = 24
-# Dot-product floor for treating two wall-axis segments as parallel — below
-# this the projected intersection is too sensitive to floating-point noise
-# to be useful as a junction apex. Calibrated to ~2° from parallel.
-PARALLEL_DOT_THRESHOLD = 0.9994
-# Perpendicular distance (SI metres) under which two parallel wall axes are
-# considered to share the same infinite line. Calibrated to absorb sub-50mm
-# placement drift between authored-joined walls without merging genuinely
-# offset parallel walls.
-COLLINEAR_LINE_TOLERANCE = 0.05
-# Default proximity (SI metres) for classifying a layer offset against the
-# canonical EXTERIOR / CENTER / INTERIOR baselines. Tight enough that ordinary
-# millimetre-scale modelling intent always falls into the nearest baseline.
-BASELINE_OFFSET_TOLERANCE = 0.001
-
-
 def unjoin_walls(
     ifc: type[tool.Ifc],
     blender: type[tool.Blender],
@@ -161,73 +140,23 @@ def align_objects(
     model.align_objects(reference_obj, objs, align_type)
 
 
-def regenerate_wall_to_underside(
-    ifc: type[tool.Ifc],
-    geometry: type[tool.Geometry],
-    model: type[tool.Model],
-    wall_objs: list[bpy.types.Object],
-) -> None:
-    """Re-clip walls to their connected underside objects after the slab has moved."""
-    clipped_objs = []
-    for obj in wall_objs:
-        wall = ifc.get_entity(obj)
-        slab_objs = model.get_connected_slab_objs(wall)
-        if not slab_objs:
-            continue
-        if ifc.is_moved(obj):
-            geometry.run_edit_object_placement(obj=obj)
-        # Sync each slab's Blender mesh to its current IFC representation before
-        # reading face geometry, so a changed profile is picked up correctly.
-        model.reload_body_representation(slab_objs)
-        model.remove_wall_to_underside_booleans(wall)
-        for slab_obj in slab_objs:
-            clip = model.get_slab_clipping_bmesh(slab_obj)
-            if clip:
-                model.clip_wall_to_slab(wall, clip)
-        clipped_objs.append(obj)
-    if clipped_objs:
-        model.reload_body_representation(clipped_objs)
-
-
 def extend_wall_to_slab(
     ifc: type[tool.Ifc],
     geometry: type[tool.Geometry],
     model: type[tool.Model],
-    slab_objs: list[bpy.types.Object],
+    slab_obj: bpy.types.Object,
     wall_objs: list[bpy.types.Object],
 ) -> None:
-    # If any wall is currently in item mode, exit it before modifying the
-    # representation. Leaving stale item objects around causes delete_ifc_item
-    # to later remove the extrusion (or other pre-boolean items) from inside
-    # the boolean chain, corrupting the IFC model.
-    geom_props = geometry.get_geometry_props()
-    if geom_props.representation_obj in wall_objs:
-        geometry.disable_item_mode()
-    clipped_walls = []
+    if not (clip := model.get_slab_clipping_bmesh(slab_obj)):
+        return  # Nothing to clip?
+    slab = ifc.get_entity(slab_obj)
     for obj in wall_objs:
         if ifc.is_moved(obj):
             geometry.run_edit_object_placement(obj=obj)
         wall = ifc.get_entity(obj)
-        # Merge previously connected slabs with newly requested ones so that
-        # re-running the operator never produces duplicate booleans and never
-        # silently discards clips that were applied in an earlier call.
-        existing = model.get_connected_slab_objs(wall)
-        seen = {id(s) for s in existing}
-        all_slab_objs = list(existing) + [s for s in slab_objs if id(s) not in seen]
-        # Remove stale booleans once, then re-clip against the full set.
-        model.remove_wall_to_underside_booleans(wall)
-        did_clip = False
-        for slab_obj in all_slab_objs:
-            clip = model.get_slab_clipping_bmesh(slab_obj)
-            if not clip:
-                continue
-            model.clip_wall_to_slab(wall, clip)
-            model.connect_wall_to_slab(wall, ifc.get_entity(slab_obj))
-            did_clip = True
-        if did_clip:
-            clipped_walls.append(obj)
-    if clipped_walls:
-        model.reload_body_representation(clipped_walls)
+        model.clip_wall_to_slab(wall, clip)
+        model.connect_wall_to_slab(wall, slab)
+    model.reload_body_representation(wall_objs)
 
 
 class RequireTwoWallsError(Exception):
@@ -244,438 +173,3 @@ class RequireAtLeastTwoElements(Exception):
 
 class RequireLayeredElement(Exception):
     pass
-
-
-# --- Wall geometry math (pure) ------------------------------------------------
-# Tuple in / tuple out so these helpers run without ``bpy`` or ``mathutils``.
-# Callers convert ``mathutils.Vector`` at the boundary.
-
-
-def baseline_from_offset(offset: float, thickness: float, tolerance: float = BASELINE_OFFSET_TOLERANCE) -> str:
-    """Classify a numeric layer offset as EXTERIOR / CENTER / INTERIOR.
-
-    Handles both POSITIVE and NEGATIVE direction_sense walls. Returns the
-    closest canonical baseline; falls back to ``"CENTER"`` when nothing is
-    within ``tolerance``."""
-    candidates = (
-        ("EXTERIOR", 0.0),
-        ("CENTER", -thickness / 2),
-        ("INTERIOR", -thickness),
-        ("EXTERIOR", thickness),
-        ("CENTER", thickness / 2),
-        ("INTERIOR", 0.0),
-    )
-    best = min(candidates, key=lambda c: abs(offset - c[1]))
-    return best[0] if abs(offset - best[1]) < tolerance else "CENTER"
-
-
-def project_axis_intersection(
-    seg_a: tuple[tuple[float, float, float], tuple[float, float, float]],
-    seg_b: tuple[tuple[float, float, float], tuple[float, float, float]],
-    parallel_threshold: float,
-) -> Optional[tuple[float, float, float]]:
-    """Compute the 2D (X,Y plane) intersection of two world-space axis segments.
-
-    Each segment is a pair of 3-tuples. Returns the intersection as a 3-tuple
-    (Z is the average of the four input Zs, for visual placement) or ``None`` if
-    the segments are parallel within ``parallel_threshold`` (a dot-product magnitude
-    threshold — see ``PARALLEL_DOT_THRESHOLD`` for the calibrated value)."""
-    p1, p2 = seg_a
-    p3, p4 = seg_b
-    d1x, d1y = p2[0] - p1[0], p2[1] - p1[1]
-    d2x, d2y = p4[0] - p3[0], p4[1] - p3[1]
-    d1_len = (d1x * d1x + d1y * d1y) ** 0.5
-    d2_len = (d2x * d2x + d2y * d2y) ** 0.5
-    if d1_len < 1e-9 or d2_len < 1e-9:
-        return None
-    dot = (d1x * d2x + d1y * d2y) / (d1_len * d2_len)
-    if abs(dot) >= parallel_threshold:
-        return None
-    denom = d1x * d2y - d1y * d2x
-    if abs(denom) < 1e-9:
-        return None
-    t = ((p3[0] - p1[0]) * d2y - (p3[1] - p1[1]) * d2x) / denom
-    ix = p1[0] + t * d1x
-    iy = p1[1] + t * d1y
-    iz = (p1[2] + p2[2] + p3[2] + p4[2]) / 4
-    return (ix, iy, iz)
-
-
-def opening_is_past_cut(min_t: float, cut_percentage: float) -> bool:
-    """True when the opening's near edge sits past the cut on the t axis.
-
-    Strict inequality is load-bearing: a boundary touch or NaN keeps the
-    opening on both walls — the safe default when extent resolution fails."""
-    return min_t > cut_percentage
-
-
-def opening_is_before_cut(max_t: float, cut_percentage: float) -> bool:
-    """True when the opening's far edge sits before the cut on the t axis."""
-    return max_t < cut_percentage
-
-
-def opening_straddles_cut(min_t: float, max_t: float, cut_percentage: float) -> bool:
-    """True when the opening's extent crosses the cut on the t axis."""
-    return min_t < cut_percentage < max_t
-
-
-WallJoinState = Literal["joined", "collinear", "intersect", "none"]
-
-
-def classify_wall_join_state(
-    seg_a: tuple[tuple[float, float, float], tuple[float, float, float]],
-    seg_b: tuple[tuple[float, float, float], tuple[float, float, float]],
-    are_joined: bool,
-    parallel_threshold: float,
-    collinear_tolerance: float,
-) -> tuple[WallJoinState, Optional[tuple[float, float, float]]]:
-    """Classify a wall pair's geometric state — ``(state, intersection)``.
-
-    Priority: ``"joined"`` (caller-supplied flag) → ``"collinear"`` →
-    ``"intersect"`` (projected point returned) → ``"none"`` (parallel,
-    non-collinear)."""
-    if are_joined:
-        return "joined", None
-    if are_axes_collinear(seg_a, seg_b, parallel_threshold, collinear_tolerance):
-        return "collinear", None
-    intersection = project_axis_intersection(seg_a, seg_b, parallel_threshold)
-    if intersection is None:
-        return "none", None
-    return "intersect", intersection
-
-
-def wall_join_preview_lines(
-    seg_a: tuple[tuple[float, float, float], tuple[float, float, float]],
-    seg_b: tuple[tuple[float, float, float], tuple[float, float, float]],
-    intersection: tuple[float, float, float],
-) -> list[tuple[tuple[float, float, float], tuple[float, float, float]]]:
-    """Two segments showing each wall axis extending to ``intersection``.
-
-    Each segment runs from the input axis's nearest endpoint to the
-    intersection, held at that wall's own Z. Returned in input order
-    ``[floor_a, floor_b]``."""
-    ix, iy, _ = intersection
-
-    def _nearest(seg: tuple[tuple[float, float, float], tuple[float, float, float]]) -> tuple[float, float, float]:
-        return min(seg, key=lambda p: (p[0] - ix) ** 2 + (p[1] - iy) ** 2)
-
-    near_a = _nearest(seg_a)
-    near_b = _nearest(seg_b)
-    return [
-        (near_a, (ix, iy, near_a[2])),
-        (near_b, (ix, iy, near_b[2])),
-    ]
-
-
-def resolve_extend_walls_target(
-    target_obj: Any,
-    objs: list[Any],
-    reverse: bool,
-) -> tuple[Any, list[Any]]:
-    """Pick which object is the extend-target and which are extended.
-
-    Default direction: ``objs`` are extended to meet ``target_obj``.
-    Reversed direction (``reverse=True``) swaps the pair — equivalent to
-    having passed them in the opposite order. The swap is well-defined only
-    for the 1+1 case (one target + one other); for ``n>1`` it would be
-    ambiguous, so the default direction is preserved instead."""
-    if reverse and target_obj is not None and len(objs) == 1:
-        return objs[0], [target_obj]
-    return target_obj, objs
-
-
-def displacement_from_x_angle(height: float, x_angle: float) -> float:
-    """Top-edge horizontal displacement for a wall of given vertical ``height``
-    and slope ``x_angle`` (radians). Inverse of ``x_angle_from_displacement``."""
-    return height * math.tan(x_angle)
-
-
-def x_angle_from_displacement(height: float, displacement: float) -> float:
-    """Recover slope ``x_angle`` (radians) from a top-edge horizontal displacement.
-
-    ``height`` is clamped to ``max(height, 1e-6)`` so zero-height walls map
-    cleanly to ``±π/2`` instead of dividing by zero."""
-    return math.atan2(displacement, max(height, 1e-6))
-
-
-def vertical_height_from_extrusion_depth(extrusion_depth: float, x_angle: float) -> float:
-    """Vertical height of a wall given its slanted extrusion depth and slope.
-
-    ``IfcExtrudedAreaSolid.Depth`` measures along the (possibly slanted) extrusion
-    direction. The vertical height the user thinks of is ``depth * cos(x_angle)``.
-    Unit-agnostic: the result is in the same units as ``extrusion_depth``."""
-    return extrusion_depth * abs(math.cos(x_angle))
-
-
-def extrusion_depth_from_vertical_height(vertical_height: float, x_angle: float) -> float:
-    """``vertical_height / cos(x_angle)`` with ``cos`` clamped at ``1e-6`` to
-    stay finite near ``±π/2``."""
-    return vertical_height / max(abs(math.cos(x_angle)), 1e-6)
-
-
-def length_and_height_from_extrusion(
-    extrusion_depth: float,
-    x_angle: float,
-    reference_line_x_extent: float,
-    unit_scale: float,
-) -> tuple[float, float]:
-    """SI ``(length, vertical_height)`` of a LAYER2 wall.
-
-    Height is the *vertical* projection of the slanted depth, not the
-    slanted depth itself."""
-    length = reference_line_x_extent * unit_scale
-    height = vertical_height_from_extrusion_depth(extrusion_depth * unit_scale, x_angle)
-    return length, height
-
-
-def are_axes_collinear(
-    seg_a: tuple[tuple[float, float, float], tuple[float, float, float]],
-    seg_b: tuple[tuple[float, float, float], tuple[float, float, float]],
-    parallel_threshold: float = PARALLEL_DOT_THRESHOLD,
-    line_tolerance: float = COLLINEAR_LINE_TOLERANCE,
-) -> bool:
-    """True if both axis segments lie on the same infinite line in plan.
-
-    Two conditions: directions must be (anti-)parallel within ``parallel_threshold``,
-    AND any endpoint of B must lie on A's infinite line within ``line_tolerance``.
-    Plan-only (Z ignored)."""
-    d1x, d1y = seg_a[1][0] - seg_a[0][0], seg_a[1][1] - seg_a[0][1]
-    d2x, d2y = seg_b[1][0] - seg_b[0][0], seg_b[1][1] - seg_b[0][1]
-    d1_len = (d1x * d1x + d1y * d1y) ** 0.5
-    d2_len = (d2x * d2x + d2y * d2y) ** 0.5
-    if d1_len < 1e-9 or d2_len < 1e-9:
-        return False
-    if abs((d1x * d2x + d1y * d2y) / (d1_len * d2_len)) < parallel_threshold:
-        return False
-    # Project seg_b[0] onto the infinite line through seg_a; the perpendicular
-    # distance to the original point tells us how far off the line B sits.
-    nx, ny = d1x / d1_len, d1y / d1_len
-    dx, dy = seg_b[0][0] - seg_a[0][0], seg_b[0][1] - seg_a[0][1]
-    t = dx * nx + dy * ny
-    proj_x = seg_a[0][0] + nx * t
-    proj_y = seg_a[0][1] + ny * t
-    perp_x = seg_b[0][0] - proj_x
-    perp_y = seg_b[0][1] - proj_y
-    return (perp_x * perp_x + perp_y * perp_y) ** 0.5 < line_tolerance
-
-
-def closest_endpoint_midpoint(
-    seg_a: tuple[tuple[float, float, float], tuple[float, float, float]],
-    seg_b: tuple[tuple[float, float, float], tuple[float, float, float]],
-) -> tuple[float, float, float]:
-    """Midpoint of the closest endpoint pair between two segments."""
-    endpoints_a = (seg_a[0], seg_a[1])
-    endpoints_b = (seg_b[0], seg_b[1])
-
-    def _distance_sq(p: tuple[float, float, float], q: tuple[float, float, float]) -> float:
-        return (p[0] - q[0]) ** 2 + (p[1] - q[1]) ** 2 + (p[2] - q[2]) ** 2
-
-    closest_pair = min(((a, b) for a in endpoints_a for b in endpoints_b), key=lambda pair: _distance_sq(*pair))
-    a, b = closest_pair
-    return ((a[0] + b[0]) / 2, (a[1] + b[1]) / 2, (a[2] + b[2]) / 2)
-
-
-def compute_path_connection_location(
-    seg_self: tuple[tuple[float, float, float], tuple[float, float, float]],
-    self_conn_type: str,
-    seg_other: tuple[tuple[float, float, float], tuple[float, float, float]],
-    other_conn_type: str,
-    parallel_threshold: float = PARALLEL_DOT_THRESHOLD,
-) -> tuple[float, float, float]:
-    """World-space location of a single ``IfcRelConnectsPathElements`` between
-    two wall axes.
-
-    Priority: ``self``'s ATSTART/ATEND endpoint → ``other``'s ATSTART/ATEND
-    endpoint → axis intersection → closest-endpoint midpoint fallback."""
-    if self_conn_type == "ATSTART":
-        return seg_self[0]
-    if self_conn_type == "ATEND":
-        return seg_self[1]
-    if other_conn_type == "ATSTART":
-        return seg_other[0]
-    if other_conn_type == "ATEND":
-        return seg_other[1]
-    intersection = project_axis_intersection(seg_self, seg_other, parallel_threshold)
-    if intersection is not None:
-        return intersection
-    return closest_endpoint_midpoint(seg_self, seg_other)
-
-
-def _vec_sub(a: tuple[float, float, float], b: tuple[float, float, float]) -> tuple[float, float, float]:
-    return (a[0] - b[0], a[1] - b[1], a[2] - b[2])
-
-
-def _vec_dot(a: tuple[float, float, float], b: tuple[float, float, float]) -> float:
-    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]
-
-
-def _vec_cross(a: tuple[float, float, float], b: tuple[float, float, float]) -> tuple[float, float, float]:
-    return (a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0])
-
-
-def _vec_length(v: tuple[float, float, float]) -> float:
-    return (v[0] * v[0] + v[1] * v[1] + v[2] * v[2]) ** 0.5
-
-
-def _rotate_around_axis(
-    v: tuple[float, float, float],
-    axis: tuple[float, float, float],
-    angle: float,
-) -> tuple[float, float, float]:
-    """Rotate ``v`` around unit-length ``axis`` by ``angle`` radians."""
-    cos_a = math.cos(angle)
-    sin_a = math.sin(angle)
-    dot = _vec_dot(axis, v)
-    cross = _vec_cross(axis, v)
-    k = 1.0 - cos_a
-    return (
-        v[0] * cos_a + cross[0] * sin_a + axis[0] * dot * k,
-        v[1] * cos_a + cross[1] * sin_a + axis[1] * dot * k,
-        v[2] * cos_a + cross[2] * sin_a + axis[2] * dot * k,
-    )
-
-
-def compute_fillet_polylines(
-    seg_a: tuple[tuple[float, float, float], tuple[float, float, float]],
-    seg_b: tuple[tuple[float, float, float], tuple[float, float, float]],
-    radius: float,
-    arc_resolution: int = FILLET_DEFAULT_ARC_RESOLUTION,
-    parallel_threshold: float = PARALLEL_DOT_THRESHOLD,
-) -> dict:
-    """Preview polylines for a circular fillet at the junction of two axes.
-
-    Returns a dict with ``valid``, ``reason``, ``intersection``, ``tangent_a``
-    / ``tangent_b``, ``arc`` (``arc_resolution + 1`` samples), ``arc_center``,
-    ``arc_radius``, ``sweep_angle``, ``sweep_axis``, ``tangent_offset``,
-    ``wall_a_join_side`` / ``wall_b_join_side`` (ATSTART/ATEND/None),
-    ``invalid_radius`` (tangent overshoots — arc + tangents still populated
-    for warning rendering), and ``invalid_axes`` (set on parallel)."""
-    blank: dict = {
-        "valid": False,
-        "reason": None,
-        "intersection": None,
-        "tangent_a": None,
-        "tangent_b": None,
-        "arc": [],
-        "arc_center": None,
-        "arc_radius": radius,
-        "sweep_angle": 0.0,
-        "sweep_axis": None,
-        "tangent_offset": 0.0,
-        "wall_a_join_side": None,
-        "wall_b_join_side": None,
-        "invalid_radius": False,
-        "invalid_axes": None,
-    }
-
-    intersection = project_axis_intersection(seg_a, seg_b, parallel_threshold)
-    if intersection is None:
-        return {**blank, "reason": "parallel", "invalid_axes": [seg_a, seg_b]}
-
-    def _classify(seg, ipt):
-        d0 = (seg[0][0] - ipt[0]) ** 2 + (seg[0][1] - ipt[1]) ** 2 + (seg[0][2] - ipt[2]) ** 2
-        d1 = (seg[1][0] - ipt[0]) ** 2 + (seg[1][1] - ipt[1]) ** 2 + (seg[1][2] - ipt[2]) ** 2
-        if d0 <= d1:
-            return seg[0], seg[1], "ATSTART"
-        return seg[1], seg[0], "ATEND"
-
-    near_a, far_a, side_a = _classify(seg_a, intersection)
-    near_b, far_b, side_b = _classify(seg_b, intersection)
-
-    # Direction along each segment AWAY from the corner. ``far - intersection``
-    # handles both the shared-corner and extended-axes cases uniformly.
-    dir_a_raw = _vec_sub(far_a, intersection)
-    dir_b_raw = _vec_sub(far_b, intersection)
-    far_len_a = _vec_length(dir_a_raw)
-    far_len_b = _vec_length(dir_b_raw)
-    if far_len_a < 1e-9 or far_len_b < 1e-9:
-        return {**blank, "reason": "near_collinear", "intersection": intersection}
-    dir_a = (dir_a_raw[0] / far_len_a, dir_a_raw[1] / far_len_a, dir_a_raw[2] / far_len_a)
-    dir_b = (dir_b_raw[0] / far_len_b, dir_b_raw[1] / far_len_b, dir_b_raw[2] / far_len_b)
-
-    cos_angle = max(-1.0, min(1.0, _vec_dot(dir_a, dir_b)))
-    angle = math.acos(cos_angle)
-    sweep_angle = math.pi - angle
-    if sweep_angle < 1e-3 or sweep_angle > math.pi - 1e-3:
-        return {
-            **blank,
-            "reason": "near_collinear",
-            "intersection": intersection,
-            "sweep_angle": sweep_angle,
-            "wall_a_join_side": side_a,
-            "wall_b_join_side": side_b,
-        }
-
-    tangent_offset = radius * math.tan(sweep_angle / 2)
-    tangent_a = (
-        intersection[0] + dir_a[0] * tangent_offset,
-        intersection[1] + dir_a[1] * tangent_offset,
-        intersection[2] + dir_a[2] * tangent_offset,
-    )
-    tangent_b = (
-        intersection[0] + dir_b[0] * tangent_offset,
-        intersection[1] + dir_b[1] * tangent_offset,
-        intersection[2] + dir_b[2] * tangent_offset,
-    )
-
-    plane_normal_raw = _vec_cross(dir_a, dir_b)
-    pn_len = _vec_length(plane_normal_raw)
-    if pn_len < 1e-9:
-        return {**blank, "reason": "near_collinear", "intersection": intersection}
-    plane_normal = (
-        plane_normal_raw[0] / pn_len,
-        plane_normal_raw[1] / pn_len,
-        plane_normal_raw[2] / pn_len,
-    )
-
-    perp_a = _vec_cross(plane_normal, dir_a)
-    if _vec_dot(perp_a, dir_b) < 0:
-        perp_a = (-perp_a[0], -perp_a[1], -perp_a[2])
-
-    arc_center = (
-        tangent_a[0] + perp_a[0] * radius,
-        tangent_a[1] + perp_a[1] * radius,
-        tangent_a[2] + perp_a[2] * radius,
-    )
-
-    v_a = _vec_sub(tangent_a, arc_center)
-    v_b = _vec_sub(tangent_b, arc_center)
-    sweep_axis = plane_normal
-    if _vec_dot(_vec_cross(v_a, v_b), plane_normal) < 0:
-        sweep_axis = (-plane_normal[0], -plane_normal[1], -plane_normal[2])
-
-    arc_points: list[tuple[float, float, float]] = []
-    for i in range(arc_resolution + 1):
-        t = i / arc_resolution
-        rotated = _rotate_around_axis(v_a, sweep_axis, sweep_angle * t)
-        arc_points.append(
-            (
-                arc_center[0] + rotated[0],
-                arc_center[1] + rotated[1],
-                arc_center[2] + rotated[2],
-            )
-        )
-
-    # Overshoot check only for convex fillets (positive ``tangent_offset``);
-    # the inverted-fillet case puts tangents past the intersection.
-    invalid_radius = tangent_offset > 0 and (tangent_offset > far_len_a or tangent_offset > far_len_b)
-
-    return {
-        "valid": not invalid_radius,
-        "reason": "invalid_radius" if invalid_radius else None,
-        "intersection": intersection,
-        "tangent_a": tangent_a,
-        "tangent_b": tangent_b,
-        "arc": arc_points,
-        "arc_center": arc_center,
-        "arc_radius": radius,
-        "sweep_angle": sweep_angle,
-        "sweep_axis": sweep_axis,
-        "tangent_offset": tangent_offset,
-        "wall_a_join_side": side_a,
-        "wall_b_join_side": side_b,
-        "leg_a_available": far_len_a,
-        "leg_b_available": far_len_b,
-        "invalid_radius": invalid_radius,
-        "invalid_axes": None,
-    }

src/bonsai/bonsai/core/product.py

@@ -1,64 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Bonsai 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
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-from __future__ import annotations
-
-import math
-from collections.abc import Iterable
-from typing import TYPE_CHECKING
-
-import bonsai.core.geometry
-
-if TYPE_CHECKING:
-    import bpy
-
-    import bonsai.tool as tool
-
-
-Z_ROTATION_ALIGNMENT_TOLERANCE = 1e-9
-
-
-def _z_rotation_diff(target_z: float, source_z: float) -> float:
-    """Signed Z-Euler difference wrapped to [-π, π]."""
-    return (target_z - source_z + math.pi) % (2 * math.pi) - math.pi
-
-
-def copy_z_rotation_to_selected(
-    ifc: type[tool.Ifc],
-    geometry: type[tool.Geometry],
-    surveyor: type[tool.Surveyor],
-    *,
-    active: bpy.types.Object,
-    targets: Iterable[bpy.types.Object],
-    flip: bool = False,
-) -> int:
-    """Apply ``active``'s Z-Euler rotation to each target."""
-    source_z = surveyor.get_z_rotation(active)
-    if flip:
-        source_z += math.pi
-    rotated = 0
-    for obj in targets:
-        if abs(_z_rotation_diff(surveyor.get_z_rotation(obj), source_z)) < Z_ROTATION_ALIGNMENT_TOLERANCE:
-            continue
-        surveyor.set_z_rotation(obj, source_z)
-        rotated += 1
-        if ifc.get_entity(obj) is not None:
-            bonsai.core.geometry.edit_object_placement(ifc, geometry, surveyor, obj=obj)
-    return rotated

src/bonsai/bonsai/core/spatial.py

@@ -67,8 +67,7 @@ def assign_container(
     if products := [e for e in root_elements if spatial.can_contain(container, root_element)]:
         ifc.run("spatial.assign_container", products=products, relating_structure=container)
     for element in all_elements:
-        if obj := ifc.get_object(element):
-            collector.assign(obj)
+        collector.assign(ifc.get_object(element))
 
 
 def enable_editing_container(spatial: type[tool.Spatial], obj: bpy.types.Object) -> None:

src/bonsai/bonsai/core/tool.py

@@ -283,7 +283,6 @@ class Cost:
 class Debug:
     def add_schema_identifier(cls, schema): pass
     def load_express(cls, filename): pass
-    def purge_hdf5_cache(cls): pass
 
 
 @interface
@@ -415,17 +414,6 @@ class Drawing:
     def update_embedded_svg_location(cls, uri, old_location, new_location): pass
 
 
-@interface
-class Duplicate:
-    def get_decomposition_relationships(cls, objs): pass
-    def get_connection_relationships(cls, objs): pass
-    def get_port_connection_relationships(cls, objs): pass
-    def recreate_decompositions(cls, relationships, old_to_new): pass
-    def recreate_connections(cls, relationship, old_to_new): pass
-    def recreate_port_connections(cls, snapshot, old_to_new): pass
-    def consume_warnings(cls): pass
-
-
 @interface
 class Feature:
     def add_feature(cls, featured_obj, featured_objs): pass
@@ -433,7 +421,6 @@ class Feature:
 @interface
 class Geometry:
     def change_object_data(cls, obj, data, is_global=False): pass
-    def clear_cache(cls, element): pass
     def clear_modifiers(cls, obj): pass
     def clear_scale(cls, obj): pass
     def copy_data_links(cls, data, copied_entities) -> None: pass
@@ -456,10 +443,8 @@ class Geometry:
     def get_representation_name(cls, representation): pass
     def get_styles(cls, obj): pass
     def get_total_representation_items(cls, obj): pass
-    def has_axis_representation(cls, element): pass
     def has_data_users(cls, data): pass
     def has_material_style_override(cls, obj): pass
-    def has_material_styles(cls, element): pass
     def import_representation_parameters(cls, data): pass
     def is_body_representation(cls, representation): pass
     def is_box_representation(cls, representation): pass
@@ -681,9 +666,6 @@ class Model:
     def export_profile(cls, obj, position=None): pass
     def generate_occurrence_name(cls, element_type, ifc_class): pass
     def get_extrusion(cls, representation): pass
-    def get_connected_slab_objs(cls, wall): pass
-    def get_connected_wall_objs(cls, slab): pass
-    def has_underside_connection(cls, element): pass
     def get_manual_booleans(cls, element): pass
     def get_material_layer_parameters(cls, element): pass
     def get_slab_clipping_bmesh(cls, obj): pass
@@ -699,7 +681,6 @@ class Model:
     def regenerate_profile(cls, obj): pass
     def regenerate_slab(cls, obj): pass
     def reload_body_representation(cls, obj_or_objects): pass
-    def remove_wall_to_underside_booleans(cls, wall): pass
     def replace_object_ifc_representation(cls, ifc_file, ifc_context, obj, new_representation): pass
 
 
@@ -793,12 +774,6 @@ class Profile:
     def get_profile(cls, element): pass
 
 
-@interface
-class Parametric:
-    def get_geom_generation(cls) -> int: pass
-    def refresh_post_commit(cls) -> None: pass
-
-
 @interface
 class Pset:
     def add_proposed_property(cls, name, value, props): pass
@@ -882,6 +857,7 @@ class Root:
     def assign_body_styles(cls, element, obj): pass
     def copy_representation(cls, source, dest): pass
     def does_type_have_representations(cls, element): pass
+    def get_decomposition_relationships(cls, objs): pass
     def get_default_container(cls): pass
     def get_element_representation(cls, element, context): pass
     def get_element_type(cls, element): pass
@@ -895,6 +871,7 @@ class Root:
     def is_in_nest_mode(cls, element): pass
     def is_spatial_element(cls, element): pass
     def link_object_data(cls, source_obj, destination_obj): pass
+    def recreate_decompositions(cls, relationships, old_to_new): pass
     def run_geometry_add_representation(cls, obj=None, context=None, ifc_representation_class=None, profile_set_usage=None): pass
     def set_object_name(cls, obj, element): pass
 
@@ -1038,8 +1015,6 @@ class Spatial:
     def get_container(cls, element): pass
     def get_decomposed_elements(cls, container, recursive): pass
     def get_decomposition(cls, element): pass
-    def get_host_element(cls, filling): pass
-    def get_host_wall(cls, filling): pass
     def get_object_matrix(cls, obj): pass
     def get_relative_object_matrix(cls, target_obj, relative_to_obj): pass
     def get_root_element(cls, element): pass
@@ -1160,8 +1135,6 @@ class Style:
 @interface
 class Surveyor:
     def get_absolute_matrix(cls, obj): pass
-    def get_z_rotation(cls, obj): pass
-    def set_z_rotation(cls, obj, z): pass
 
 
 @interface
@@ -1228,42 +1201,6 @@ class Voider:
     def void(cls, opening_obj, building_obj): pass
 
 
-@interface
-class Array:
-    def bake_children_transform(cls, parent_element, item): pass
-    def constrain_children_to_parent(cls, parent_element): pass
-    def get_all_children_objects(cls, parent_element): pass
-    def get_all_objects(cls, parent_element): pass
-    def get_child_layer_index(cls, child_element): pass
-    def get_children_objects(cls, modifier_data): pass
-    def get_modifiers_data(cls, parent_element): pass
-    def get_parent_element(cls, element): pass
-    def get_parent_object(cls, element): pass
-    def remove_constraints(cls, parent_element): pass
-    def set_children_lock_state(cls, parent_element, item, lock_state): pass
-
-
-@interface
-class Slab:
-    def read_geometry(cls, obj): pass
-
-
-@interface
-class Wall:
-    def collinear_boundary_world(cls, seg_a, seg_b): pass
-    def compute_wall_fillet_geometry(cls, wall_a_obj, wall_b_obj, radius, arc_resolution): pass
-    def get_axis_local_extent(cls, wall): pass
-    def get_length_and_height(cls, wall): pass
-    def get_world_reference_line(cls, obj): pass
-    def get_x_angle(cls, wall): pass
-    def has_layer2_usage(cls, wall): pass
-    def is_straight_axis(cls, wall): pass
-    def path_connection_location_world(cls, seg_self, self_conn_type, seg_other, other_conn_type, parallel_threshold): pass
-    def read_geometry(cls, obj): pass
-    def validate_for_parametric_edit(cls, obj): pass
-    def walk_connected_walls(cls, start_element, node_cap): pass
-
-
 @interface
 class Web:
     pass

src/bonsai/bonsai/tool/__init__.py

@@ -20,7 +20,6 @@
 # ruff: noqa: F401
 
 from bonsai.tool.aggregate import Aggregate
-from bonsai.tool.array import Array
 from bonsai.tool.attribute import Attribute
 from bonsai.tool.bcf import Bcf
 from bonsai.tool.blender import Blender
@@ -38,7 +37,6 @@ from bonsai.tool.debug import Debug
 from bonsai.tool.demo import Demo
 from bonsai.tool.document import Document
 from bonsai.tool.drawing import Drawing
-from bonsai.tool.duplicate import Duplicate
 from bonsai.tool.feature import Feature
 from bonsai.tool.geometry import Geometry
 from bonsai.tool.georeference import Georeference
@@ -53,7 +51,6 @@ from bonsai.tool.misc import Misc
 from bonsai.tool.model import Model
 from bonsai.tool.nest import Nest
 from bonsai.tool.owner import Owner
-from bonsai.tool.parametric import Parametric
 from bonsai.tool.patch import Patch
 from bonsai.tool.polyline import Polyline
 from bonsai.tool.profile import Profile
@@ -66,7 +63,6 @@ from bonsai.tool.resource import Resource
 from bonsai.tool.root import Root
 from bonsai.tool.search import Search
 from bonsai.tool.sequence import Sequence
-from bonsai.tool.slab import Slab
 from bonsai.tool.snap import Snap
 from bonsai.tool.spatial import Spatial
 from bonsai.tool.structural import Structural
@@ -76,5 +72,4 @@ from bonsai.tool.system import System
 from bonsai.tool.tester import Tester
 from bonsai.tool.type import Type
 from bonsai.tool.unit import Unit
-from bonsai.tool.wall import Wall
 from bonsai.tool.web import Web

src/bonsai/bonsai/tool/aggregate.py

@@ -205,27 +205,6 @@ class Aggregate(bonsai.core.tool.Aggregate):
         props.in_aggregate_mode = True
         return {"FINISHED"}
 
-    @classmethod
-    def save_previous_selection(cls) -> None:
-        props = cls.get_aggregate_props()
-        props.previously_selected_objects.clear()
-        for obj in bpy.context.selected_objects:
-            entry = props.previously_selected_objects.add()
-            entry.obj = obj
-
-    @classmethod
-    def restore_previous_selection(cls) -> None:
-        props = cls.get_aggregate_props()
-        for obj in bpy.context.selected_objects:
-            obj.select_set(False)
-        for entry in props.previously_selected_objects:
-            if entry.obj:
-                try:
-                    entry.obj.select_set(True)
-                except Exception:
-                    pass
-        props.previously_selected_objects.clear()
-
     @classmethod
     def disable_aggregate_mode(cls):
         context = bpy.context

src/bonsai/bonsai/tool/array.py

@@ -1,207 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Bonsai 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
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Bonsai parametric array service.
-
-Top-level array-domain helpers. The ``BBIM_Array`` pset on a parent ``IfcElement``
-holds the list of layers; each layer holds the GUIDs of its child replicas. These
-helpers navigate that graph and manage the Blender-side CHILD_OF constraint that
-pins children to the parent's matrix_world."""
-
-from __future__ import annotations
-
-import json
-from collections.abc import Generator
-from typing import TYPE_CHECKING, Any
-
-import bpy
-import ifcopenshell
-import ifcopenshell.util.element
-
-import bonsai.core.tool
-import bonsai.tool as tool
-
-if TYPE_CHECKING:
-    from ifcopenshell import entity_instance
-
-
-class Array(bonsai.core.tool.Array):
-    @classmethod
-    def bake_children_transform(cls, parent_element: entity_instance, item: int) -> None:
-        modifier_data = list(cls.get_modifiers_data(parent_element))[item]
-        children = cls.get_children_objects(modifier_data)
-        for child in children:
-            constraint = next((c for c in child.constraints if c.type == "CHILD_OF"), None)
-            if constraint:
-                with bpy.context.temp_override(object=child):
-                    bpy.ops.constraint.apply(constraint=constraint.name, owner="OBJECT")
-
-    @classmethod
-    def constrain_children_to_parent(cls, parent_element: ifcopenshell.entity_instance) -> None:
-        if not (parent_obj := tool.Ifc.get_object(parent_element)):
-            return  # Filtered out, arrayed void, etc
-        assert isinstance(parent_obj, bpy.types.Object)
-        children = cls.get_all_children_objects(parent_element)
-        for child in children:
-            constraint = next((c for c in child.constraints if c.type == "CHILD_OF"), None)
-            if constraint:
-                child.constraints.remove(constraint)
-            constraint = child.constraints.new("CHILD_OF")
-            constraint.name = "BBIM_Array_CHILD_OF"
-            assert isinstance(constraint, bpy.types.ChildOfConstraint)
-            constraint.target = parent_obj
-
-    @classmethod
-    def set_children_lock_state(
-        cls, parent_element: ifcopenshell.entity_instance, item: int, lock_state: bool = True
-    ) -> None:
-        modifier_data = list(cls.get_modifiers_data(parent_element))[item]
-        children = cls.get_children_objects(modifier_data)
-        for child_obj in children:
-            tool.Blender.lock_transform(child_obj, lock_state)
-
-    @classmethod
-    def remove_constraints(cls, parent_element: ifcopenshell.entity_instance) -> None:
-        children = cls.get_all_children_objects(parent_element)
-        for child in children:
-            constraint = next((c for c in child.constraints if c.type == "CHILD_OF"), None)
-            if constraint:
-                child.constraints.remove(constraint)
-
-    @classmethod
-    def get_all_objects(cls, parent_element: ifcopenshell.entity_instance) -> list[bpy.types.Object]:
-        parent_obj = tool.Ifc.get_object(parent_element)
-        assert isinstance(parent_obj, bpy.types.Object)
-        children_objects = list(cls.get_all_children_objects(parent_element))
-        array_objects = [parent_obj] + children_objects  # We ensure the parent is at index 0
-        return array_objects
-
-    @classmethod
-    def get_all_children_objects(
-        cls, parent_element: ifcopenshell.entity_instance
-    ) -> Generator[bpy.types.Object, None, None]:
-        for array_modifier in cls.get_modifiers_data(parent_element):
-            yield from cls.get_children_objects(array_modifier)
-
-    @classmethod
-    def get_parent_element(cls, element: entity_instance) -> entity_instance | None:
-        """Inverse of ``get_all_children_objects``: resolve an array element
-        back to its parent entity. Returns ``None`` when the element isn't
-        part of a Bonsai parametric array, or the stored Parent GUID does
-        not resolve in the current file (this is a data-integrity warning
-        and is logged to the console)."""
-        pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
-        if not pset:
-            return None
-        parent_guid = pset["Parent"]
-        try:
-            return tool.Ifc.get().by_guid(parent_guid)
-        except RuntimeError:
-            print(
-                f"BBIM_Array.Parent GUID {parent_guid!r} on {element} does not resolve "
-                f"in the current file — array integrity may be broken."
-            )
-            return None
-
-    @classmethod
-    def get_parent_object(cls, element: entity_instance) -> bpy.types.Object | None:
-        parent_element = cls.get_parent_element(element)
-        if parent_element is None:
-            return None
-        return tool.Ifc.get_object(parent_element)
-
-    @classmethod
-    def get_modifiers_data(cls, parent_element: ifcopenshell.entity_instance) -> Generator[dict[str, Any], None, None]:
-        array_pset = ifcopenshell.util.element.get_pset(parent_element, "BBIM_Array")
-        yield from json.loads(array_pset["Data"])
-
-    @classmethod
-    def get_children_objects(cls, modifier_data: dict[str, Any]) -> Generator[bpy.types.Object, None, None]:
-        child_guid: str
-        for child_guid in modifier_data["children"]:
-            child_obj = tool.Blender.get_object_from_guid(child_guid)
-            if child_obj:
-                yield child_obj
-
-    @classmethod
-    def get_array_root_guid(cls, element: entity_instance) -> str:
-        """Walk ``BBIM_Array.Parent`` upwards and return the topmost ancestor's
-        GlobalId. For an element with no ``BBIM_Array`` pset (independent
-        window, never arrayed, or former-child after the apply path), returns
-        the element's own GlobalId — its "family" is just itself."""
-        current = element
-        seen: set[str] = set()
-        while True:
-            pset = ifcopenshell.util.element.get_pset(current, "BBIM_Array")
-            parent_guid = pset.get("Parent") if pset else None
-            if not parent_guid or parent_guid == current.GlobalId or parent_guid in seen:
-                return current.GlobalId
-            seen.add(parent_guid)
-            try:
-                current = tool.Ifc.get().by_guid(parent_guid)
-            except RuntimeError:
-                return current.GlobalId
-
-    @classmethod
-    def get_parametric_propagation_targets(cls, element: entity_instance) -> list[entity_instance]:
-        """Type-occurrences that should receive parametric updates when
-        ``element`` is edited.
-
-        Returns occurrences in ``element``'s Bonsai array family. When
-        ``element`` is not part of any array, returns the type-occurrence
-        peers that are likewise free of ``BBIM_Array`` (preserving the
-        bulk-edit-by-type UX for standalone parametric elements). An
-        occurrence whose ``BBIM_Array`` root differs from ``element``'s root
-        is excluded — that is the "independent former child" case the array
-        apply path produces."""
-        occurrences = tool.Ifc.get_all_element_occurrences(element)
-        element_pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
-        if not element_pset:
-            return [o for o in occurrences if not ifcopenshell.util.element.get_pset(o, "BBIM_Array")]
-        element_root = cls.get_array_root_guid(element)
-        return [o for o in occurrences if cls.get_array_root_guid(o) == element_root]
-
-    @classmethod
-    def get_child_layer_index(cls, child_element: entity_instance) -> int | None:
-        """Index of the layer that produced ``child_element``, or ``None``
-        if the child is unparented, missing from the parent's data, or the
-        parent's pset is unreadable. Total: never raises."""
-        pset = ifcopenshell.util.element.get_pset(child_element, "BBIM_Array")
-        if not pset:
-            return None
-        parent_guid = pset.get("Parent")
-        if not parent_guid or parent_guid == child_element.GlobalId:
-            return None
-        try:
-            parent_element = tool.Ifc.get().by_guid(parent_guid)
-        except RuntimeError:
-            return None
-        data_text = ifcopenshell.util.element.get_pset(parent_element, "BBIM_Array", "Data")
-        if not data_text:
-            return None
-        try:
-            layers = json.loads(data_text)
-        except (ValueError, TypeError):
-            return None
-        child_guid = child_element.GlobalId
-        for i, layer in enumerate(layers):
-            if child_guid in layer.get("children", []):
-                return i
-        return None

src/bonsai/bonsai/tool/blender.py

@@ -15,13 +15,12 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.
 
 from __future__ import annotations
 
 import contextlib
 import importlib
+import json
 import os
 import platform
 import subprocess
@@ -29,7 +28,7 @@ import sys
 import tempfile
 import traceback
 import types
-from collections.abc import Callable, Generator, Iterable, Mapping, Sequence, Sized
+from collections.abc import Callable, Generator, Iterable, Sequence, Sized
 from datetime import datetime
 from functools import cache, lru_cache
 from pathlib import Path
@@ -46,6 +45,7 @@ from typing import (
 
 import bmesh
 import bpy
+import ifcopenshell.api
 import ifcopenshell.util.element
 import numpy as np
 import numpy.typing as npt
@@ -55,12 +55,12 @@ from mathutils import Matrix, Vector
 import bonsai.bim
 import bonsai.core.tool
 import bonsai.tool as tool
+from bonsai.bim.ifc import IFC_CONNECTED_TYPE
 
 if TYPE_CHECKING:
     import bpy.stub_internal.rna_enums as rna_enums
     from sun_position.properties import SunPosProperties
 
-    from bonsai.bim.ifc import IFC_CONNECTED_TYPE
     from bonsai.bim.module.attribute.prop import BIMAttributeProperties
     from bonsai.bim.module.constraint.prop import (
         BIMConstraintProperties,
@@ -97,19 +97,6 @@ VIEWPORT_ATTRIBUTES = [
 
 OBJECT_DATA_TYPE = Union[bpy.types.Mesh, bpy.types.Curve, bpy.types.Camera]
 
-_RAILING_MODIFIER_IFC_CLASSES = ("IfcRailing", "IfcRailingType")
-_STAIR_MODIFIER_IFC_CLASSES = (
-    "IfcStairFlight",
-    "IfcStairFlightType",
-    "IfcMember",
-    "IfcMemberType",
-    "IfcStair",
-    "IfcStairType",
-)
-_WINDOW_MODIFIER_IFC_CLASSES = ("IfcWindow", "IfcWindowType", "IfcWindowStyle")
-_DOOR_MODIFIER_IFC_CLASSES = ("IfcDoor", "IfcDoorType", "IfcDoorStyle")
-_ROOF_MODIFIER_IFC_CLASSES = ("IfcRoof", "IfcRoofType")
-
 
 class Blender(bonsai.core.tool.Blender):
     OBJECT_TYPES_THAT_SUPPORT_EDIT_MODE = ("MESH", "CURVE", "SURFACE", "META", "FONT", "LATTICE", "ARMATURE")
@@ -428,189 +415,6 @@ class Blender(bonsai.core.tool.Blender):
         with bpy.context.temp_override(**cls.get_viewport_context()):
             bpy.ops.wm.tool_set_by_id(name=tool_name)
 
-    @classmethod
-    def are_viewport_gizmos_enabled(cls) -> bool:
-        """Central gate every Bonsai gizmo poll / decorator draw checks before
-        rendering. Centralises the read of
-        ``gizmos.draw_gizmos_in_3d_viewport`` from addon preferences."""
-        return cls.get_addon_preferences().gizmos.draw_gizmos_in_3d_viewport
-
-    class DecoratorColors(NamedTuple):
-        selected: tuple
-        unselected: tuple
-        special: tuple
-        error: tuple
-        background: tuple
-
-    @classmethod
-    def get_decorator_colors(cls) -> Blender.DecoratorColors:
-        """The five ``decorator_color_*`` fields read together so each viewport
-        decorator's draw callback resolves them in one call instead of five."""
-        prefs = cls.get_addon_preferences()
-        return cls.DecoratorColors(
-            selected=prefs.decorator_color_selected,
-            unselected=prefs.decorator_color_unselected,
-            special=prefs.decorator_color_special,
-            error=prefs.decorator_color_error,
-            background=prefs.decorator_color_background,
-        )
-
-    class ViewportDecorator:
-        """Shared ``SpaceView3D.draw_handler_add`` lifecycle for feature decorators.
-
-        Single-handler subclasses set ``draw_method`` (default ``"draw"``); the
-        handler binds at ``POST_VIEW``. Multi-handler subclasses set
-        ``draw_methods`` to a tuple of ``(method_name, phase)`` pairs; when it
-        is non-``None`` it supersedes ``draw_method``.
-
-        Decorators whose ``install`` must accept extra arguments (e.g. a callback
-        or a precomputed bmesh) override ``install`` themselves."""
-
-        draw_method: str = "draw"
-        draw_methods: tuple[tuple[str, str], ...] | None = None
-
-        def __init_subclass__(cls, **kwargs):
-            super().__init_subclass__(**kwargs)
-            cls.handlers = []
-            cls.is_installed = False
-            # Fail loudly at class-definition time if draw_method / draw_methods
-            # names an attribute the class doesn't expose. Without this, a typo
-            # only surfaces on the first redraw — as a silent missing-attribute
-            # handler — which may be far from the offending declaration.
-            method_names = (
-                tuple(name for name, _phase in cls.draw_methods) if cls.draw_methods is not None else (cls.draw_method,)
-            )
-            for name in method_names:
-                if getattr(cls, name, None) is None:
-                    raise TypeError(f"{cls.__name__}: draw method {name!r} is declared but not defined on the class")
-
-        @classmethod
-        def install(cls, context: bpy.types.Context) -> None:
-            if cls.is_installed:
-                cls.uninstall()
-            handler = cls()
-            bindings = cls.draw_methods if cls.draw_methods is not None else ((cls.draw_method, "POST_VIEW"),)
-            # Rollback partial registrations on any draw_handler_add failure, so
-            # cls.handlers never ends up holding a half-installed set.
-            added: list = []
-            try:
-                for method_name, phase in bindings:
-                    added.append(
-                        bpy.types.SpaceView3D.draw_handler_add(
-                            getattr(handler, method_name), (context,), "WINDOW", phase
-                        )
-                    )
-            except Exception:
-                for h in added:
-                    try:
-                        bpy.types.SpaceView3D.draw_handler_remove(h, "WINDOW")
-                    except ValueError:
-                        pass
-                raise
-            cls.handlers = added
-            cls.is_installed = True
-
-        @classmethod
-        def uninstall(cls) -> None:
-            for h in cls.handlers:
-                try:
-                    bpy.types.SpaceView3D.draw_handler_remove(h, "WINDOW")
-                except ValueError:
-                    pass
-            cls.handlers.clear()
-            cls.is_installed = False
-
-        @staticmethod
-        def _lookup_active_instance(gizmo_cls: type, context: bpy.types.Context) -> Optional[Any]:
-            """Return the live ``GizmoGroup`` instance registered under
-            ``context.region``, or ``None`` if there isn't one. The per-region
-            weakref dict on the gizmo class is populated by ``setup()``; multi-
-            viewport setups put one entry per region in it so each region's
-            decorator sees only its own region's hover state."""
-            instances = getattr(gizmo_cls, "_active_instances", None)
-            if not instances:
-                return None
-            region = getattr(context, "region", None)
-            if region is None:
-                return None
-            ref = instances.get(region.as_pointer())
-            if ref is None:
-                return None
-            return ref()
-
-        def _cursor_icon_hovered(self, gizmo_cls: type, attr_name: str, context: bpy.types.Context) -> bool:
-            """True iff the gizmo group instance in the current region exposes a gizmo
-            under ``attr_name`` that reports as highlighted. Any access exception is
-            swallowed so a transient bpy-state hiccup never breaks the draw loop."""
-            inst = self._lookup_active_instance(gizmo_cls, context)
-            if inst is None:
-                return False
-            try:
-                return bool(getattr(inst, attr_name).is_highlight)
-            except (AttributeError, ReferenceError):
-                return False
-
-        @classmethod
-        def sync_all(
-            cls,
-            context: bpy.types.Context,
-            enabled: Mapping[type[Blender.ViewportDecorator], bool],
-        ) -> None:
-            """Drive each listed decorator to its desired install state in one call.
-
-            Each entry whose value is ``True`` ends up installed; each entry whose
-            value is ``False`` ends up uninstalled. Pass ``True`` for always-on
-            overlays so they survive subsequent file loads."""
-            for decorator_cls, should_install in enabled.items():
-                if should_install:
-                    decorator_cls.install(context)
-                else:
-                    decorator_cls.uninstall()
-
-    @classmethod
-    def is_view_top_down(cls, context: bpy.types.Context, threshold: float = 0.9659) -> bool:
-        """True when the viewport camera is looking ~straight down (or up) the world Z axis.
-
-        Default threshold of 0.9659 = cos(15°) — a 15° tilt cone around ±world Z.
-        Above the threshold the world-Z axis projects to a small fraction of its
-        true length on screen, so callers that lay icons or markers out along
-        world Z should switch to a screen-space offset and any gizmo whose intent
-        is specifically "vertical" loses its visual cue. The cone is kept narrow
-        so vertical-intent gizmos stay visible across the typical orbit range of
-        3D viewport work and drop out only near genuine plan view."""
-        rv3d = context.region_data
-        if rv3d is None:
-            return False
-        view_forward = Vector(rv3d.view_matrix.inverted().col[2][:3]).normalized()
-        return abs(view_forward.z) > threshold
-
-    @classmethod
-    def top_down_factor(cls, context: bpy.types.Context, threshold: float = 0.9659) -> float:
-        """Continuous 0–1 ramp matching ``is_view_top_down``'s cone: 0 outside the
-        cone, ramping linearly to 1 at strict alignment with world Z. Callers that
-        want a proportional effect (an icon-stack lift growing as the view
-        approaches plan) use this in place of the boolean to avoid a one-frame
-        visual jump as the camera crosses the threshold."""
-        rv3d = context.region_data
-        if rv3d is None:
-            return 0.0
-        view_forward = Vector(rv3d.view_matrix.inverted().col[2][:3]).normalized()
-        alignment = abs(view_forward.z)
-        if alignment <= threshold:
-            return 0.0
-        return (alignment - threshold) / (1.0 - threshold)
-
-    @classmethod
-    def get_screen_up_world(cls, context: bpy.types.Context) -> Vector:
-        """World-space direction corresponding to the camera's up axis (screen-vertical).
-
-        Returns ``+Y`` when region data is unavailable so callers can compute an
-        offset without a guard branch."""
-        rv3d = context.region_data
-        if rv3d is None:
-            return Vector((0.0, 1.0, 0.0))
-        return Vector(rv3d.view_matrix.inverted().col[1][:3]).normalized()
-
     @classmethod
     def get_shader_editor_context(cls) -> Union[dict[str, Any], None]:
         for screen in bpy.data.screens:
@@ -680,13 +484,9 @@ class Blender(bonsai.core.tool.Blender):
 
     @classmethod
     def update_all_viewports(cls, context: bpy.types.Context | None = None) -> None:
-        """Tag every visible 3D viewport for redraw. Silent no-op when no
-        screen attached (background mode, plug-out, mid-load_post)."""
         context = context or bpy.context
-        screen = getattr(context, "screen", None)
-        if screen is None:
-            return
-        for area in screen.areas:
+        assert context.screen
+        for area in context.screen.areas:
             if area.type == "VIEW_3D":
                 area.tag_redraw()
 
@@ -835,11 +635,10 @@ class Blender(bonsai.core.tool.Blender):
         op_text = "" if ui_context == "TOOL_HEADER" else text
         modifier_icon, modifier_str = cls.KEY_MODIFIERS.get(modifier, ("NONE", ""))
 
+        row = layout if ui_context == "TOOL_HEADER" else layout.row(align=True)
         module = sys.modules[module_name]
         icon_previews: Union[bpy.utils.previews.ImagePreviewCollection, None]
         icon_previews = getattr(module, "custom_icon_previews", None)
-
-        row = layout if ui_context == "TOOL_HEADER" else layout.row(align=True)
         if icon_previews:
             custom_icon = icon_previews.get(text.upper().replace(" ", "_"), icon_previews["IFC"]).icon_id
             op = row.operator(operator_to_use, text=op_text, icon_value=custom_icon)
@@ -847,7 +646,6 @@ class Blender(bonsai.core.tool.Blender):
             op = row.operator(operator_to_use, text=op_text)
         if ui_context != "TOOL_HEADER":
             row.label(text="", icon=modifier_icon)
-            row.separator(factor=1)
             row.label(text="", icon=f"EVENT_{key}")
 
         if operator_to_use == hotkey_operator:
@@ -1332,74 +1130,6 @@ class Blender(bonsai.core.tool.Blender):
         return True
 
     class Modifier:
-        # ----------------------------------------------------------------------
-        # FIXME(PR5): backward-compat shims for callers still using the
-        # pre-refactor API. The is_<type> predicates now live on tool.Parametric;
-        # the Array helper bag now lives on tool.Array. PR4 migrates each caller;
-        # this whole shim block is removed in PR5's cleanup.
-        # ----------------------------------------------------------------------
-
-        @classmethod
-        def is_door(cls, element: entity_instance) -> bool:
-            return tool.Parametric.is_door(element)
-
-        @classmethod
-        def is_railing(cls, element: entity_instance) -> bool:
-            return tool.Parametric.is_railing(element)
-
-        @classmethod
-        def is_roof(cls, element: entity_instance) -> bool:
-            return tool.Parametric.is_roof(element)
-
-        @classmethod
-        def is_stair(cls, element: entity_instance) -> bool:
-            return tool.Parametric.is_stair(element)
-
-        @classmethod
-        def is_wall(cls, element: entity_instance) -> bool:
-            return tool.Parametric.is_wall(element)
-
-        @classmethod
-        def is_window(cls, element: entity_instance) -> bool:
-            return tool.Parametric.is_window(element)
-
-        class Array:
-            @classmethod
-            def bake_children_transform(cls, parent_element: ifcopenshell.entity_instance, item: int) -> None:
-                tool.Array.bake_children_transform(parent_element, item)
-
-            @classmethod
-            def constrain_children_to_parent(cls, parent_element: ifcopenshell.entity_instance) -> None:
-                tool.Array.constrain_children_to_parent(parent_element)
-
-            @classmethod
-            def get_all_children_objects(cls, parent_element: ifcopenshell.entity_instance) -> list:
-                return tool.Array.get_all_children_objects(parent_element)
-
-            @classmethod
-            def get_all_objects(cls, parent_element: ifcopenshell.entity_instance) -> list:
-                return tool.Array.get_all_objects(parent_element)
-
-            @classmethod
-            def get_children_objects(cls, modifier_data: dict) -> list:
-                return tool.Array.get_children_objects(modifier_data)
-
-            @classmethod
-            def get_modifiers_data(cls, parent_element: ifcopenshell.entity_instance):
-                return tool.Array.get_modifiers_data(parent_element)
-
-            @classmethod
-            def remove_constraints(cls, parent_element: ifcopenshell.entity_instance) -> None:
-                tool.Array.remove_constraints(parent_element)
-
-            @classmethod
-            def set_children_lock_state(
-                cls, parent_element: ifcopenshell.entity_instance, item: int, lock: bool
-            ) -> None:
-                tool.Array.set_children_lock_state(parent_element, item, lock)
-
-        # ----------------------------------------------------------------------
-
         @classmethod
         def try_applying_edit_mode(cls, obj: bpy.types.Object, element: entity_instance) -> bool:
             """Tries to validate the current BIM modifier parameters for the active object
@@ -1407,18 +1137,20 @@ class Blender(bonsai.core.tool.Blender):
 
             :return: True if an action was taken, False otherwise
             """
-            # roof and railing both finalize then drop into path-edit mode — handle
-            # them before the generic finish dispatch so the path transition runs.
-            if tool.Parametric.is_roof(element):
-                if tool.Parametric.ROOF.is_editing(obj):
-                    tool.Parametric.run_bim_op(tool.Parametric.ROOF.finish_op)
+            if cls.is_roof(element):
+                if cls.is_editing_roof_parameters(obj):
+                    bpy.ops.bim.finish_editing_roof()
                 bpy.ops.bim.enable_editing_roof_path()
-            elif tool.Parametric.is_railing(element):
-                if tool.Parametric.RAILING.is_editing(obj):
-                    tool.Parametric.run_bim_op(tool.Parametric.RAILING.finish_op)
+            elif cls.is_railing(element):
+                if cls.is_editing_railing_parameters(obj):
+                    bpy.ops.bim.finish_editing_railing()
                 bpy.ops.bim.enable_editing_railing_path()
-            elif feature := tool.Parametric.is_object_editing(obj):
-                tool.Parametric.run_bim_op(feature.finish_op)
+            elif cls.is_editing_stair_parameters(obj):
+                bpy.ops.bim.finish_editing_stair()
+            elif cls.is_editing_door_parameters(obj):
+                bpy.ops.bim.finish_editing_door()
+            elif cls.is_editing_window_parameters(obj):
+                bpy.ops.bim.finish_editing_window()
             else:
                 return False
             return True
@@ -1429,80 +1161,68 @@ class Blender(bonsai.core.tool.Blender):
 
             :return: True if an action was taken, False otherwise
             """
-            # Path-edit modes are distinct from parametric draft modes; handle them first.
             if cls.is_editing_railing_path(obj):
                 bpy.ops.bim.cancel_editing_railing_path()
             elif cls.is_editing_roof_path(obj):
                 bpy.ops.bim.cancel_editing_roof_path()
-            elif feature := tool.Parametric.is_object_editing(obj):
-                tool.Parametric.run_bim_op(feature.cancel_op)
+            elif cls.is_editing_railing_parameters(obj):
+                bpy.ops.bim.cancel_editing_railing()
+            elif cls.is_editing_door_parameters(obj):
+                bpy.ops.bim.cancel_editing_door()
+            elif cls.is_editing_window_parameters(obj):
+                bpy.ops.bim.cancel_editing_window()
+            elif cls.is_editing_roof_parameters(obj):
+                bpy.ops.bim.cancel_editing_roof()
+            elif cls.is_editing_stair_parameters(obj):
+                bpy.ops.bim.cancel_editing_stair()
             else:
                 return False
             return True
 
         @classmethod
         def is_eligible_for_railing_modifier(cls, obj: bpy.types.Object) -> bool:
-            return tool.Blender.is_object_an_ifc_class(obj, _RAILING_MODIFIER_IFC_CLASSES)
+            return tool.Blender.is_object_an_ifc_class(obj, ("IfcRailing", "IfcRailingType"))
 
         @classmethod
         def is_eligible_for_stair_modifier(cls, obj: bpy.types.Object) -> bool:
-            return tool.Blender.is_object_an_ifc_class(obj, _STAIR_MODIFIER_IFC_CLASSES)
+            return tool.Blender.is_object_an_ifc_class(
+                obj, ("IfcStairFlight", "IfcStairFlightType", "IfcMember", "IfcMemberType", "IfcStair", "IfcStairType")
+            )
 
         @classmethod
         def is_eligible_for_window_modifier(cls, obj: bpy.types.Object) -> bool:
-            return tool.Blender.is_object_an_ifc_class(obj, _WINDOW_MODIFIER_IFC_CLASSES)
+            return tool.Blender.is_object_an_ifc_class(obj, ("IfcWindow", "IfcWindowType", "IfcWindowStyle"))
 
         @classmethod
         def is_eligible_for_door_modifier(cls, obj: bpy.types.Object) -> bool:
-            return tool.Blender.is_object_an_ifc_class(obj, _DOOR_MODIFIER_IFC_CLASSES)
+            return tool.Blender.is_object_an_ifc_class(obj, ("IfcDoor", "IfcDoorType", "IfcDoorStyle"))
 
         @classmethod
         def is_eligible_for_roof_modifier(cls, obj: bpy.types.Object) -> bool:
-            return tool.Blender.is_object_an_ifc_class(obj, _ROOF_MODIFIER_IFC_CLASSES)
+            return tool.Blender.is_object_an_ifc_class(obj, ("IfcRoof", "IfcRoofType"))
 
         @classmethod
-        def is_array_child(cls, element: entity_instance) -> bool:
-            """True if element is a CHILD of a Bonsai parametric array.
-
-            Children are managed replicas regenerated from the parent's pset —
-            their parametric attributes (door dimensions, wall lengths, …) are
-            overwritten on the next ``regenerate_array``. Parametric gizmo
-            groups skip children via this predicate in ``poll``.
-
-            This sits on a different axis from ``tool.Parametric.is_array``:
-            cardinality (parent vs child) is orthogonal to feature kind, and
-            an arrayed wall fires both ``is_wall`` and ``is_array`` on the
-            same element."""
-            if element is None:
-                return False
-            pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
-            if not pset:
-                return False
-            parent_guid = pset.get("Parent")
-            return parent_guid is not None and parent_guid != element.GlobalId
+        def is_railing(cls, element: entity_instance) -> bool:
+            return tool.Pset.get_element_pset(element, "BBIM_Railing")
 
         @classmethod
-        def is_slab(cls, element: entity_instance) -> bool:
-            """A slab is host-eligible for the parametric add-opening gizmo if
-            it is an IfcSlab with LAYER3 usage.
-
-            Slabs carry no proprietary BBIM_Slab pset — their parametric state
-            lives in standard IFC (extrusion depth, IfcMaterialLayerSetUsage
-            with LayerSetDirection AXIS3). Any LAYER3 slab qualifies."""
-            if element is None or not element.is_a("IfcSlab"):
-                return False
-            return tool.Model.get_usage_type(element) == "LAYER3"
+        def is_roof(cls, element: entity_instance) -> bool:
+            return tool.Pset.get_element_pset(element, "BBIM_Roof")
 
         @classmethod
-        def is_pipe_segment(cls, element: entity_instance) -> bool:
-            return element is not None and element.is_a("IfcPipeSegment")
+        def is_window(cls, element: entity_instance) -> bool:
+            return tool.Pset.get_element_pset(element, "BBIM_Window")
 
         @classmethod
-        def is_duct_segment(cls, element: entity_instance) -> bool:
-            return element is not None and element.is_a("IfcDuctSegment")
+        def is_door(cls, element: entity_instance) -> bool:
+            return tool.Pset.get_element_pset(element, "BBIM_Door")
 
         @classmethod
-        def is_editing_railing_path(cls, obj: bpy.types.Object) -> bool:
+        def is_stair(cls, element: entity_instance) -> bool:
+            return tool.Pset.get_element_pset(element, "BBIM_Stair")
+
+        @classmethod
+        def is_editing_railing_path(cls, obj: bpy.types.Object):
             props = tool.Model.get_railing_props(obj)
             return props.is_editing_path
 
@@ -1511,10 +1231,107 @@ class Blender(bonsai.core.tool.Blender):
             props = tool.Model.get_roof_props(obj)
             return props.is_editing_path
 
+        @classmethod
+        def is_editing_railing_parameters(cls, obj: bpy.types.Object) -> bool:
+            props = tool.Model.get_railing_props(obj)
+            return props.is_editing
+
+        @classmethod
+        def is_editing_roof_parameters(cls, obj: bpy.types.Object) -> bool:
+            props = tool.Model.get_roof_props(obj)
+            return props.is_editing
+
+        @classmethod
+        def is_editing_window_parameters(cls, obj: bpy.types.Object) -> bool:
+            props = tool.Model.get_window_props(obj)
+            return props.is_editing
+
+        @classmethod
+        def is_editing_door_parameters(cls, obj: bpy.types.Object) -> bool:
+            props = tool.Model.get_door_props(obj)
+            return props.is_editing
+
+        @classmethod
+        def is_editing_stair_parameters(cls, obj: bpy.types.Object) -> bool:
+            props = tool.Model.get_stair_props(obj)
+            return props.is_editing
+
         @classmethod
         def is_modifier_with_non_editable_path(cls, element: entity_instance) -> bool:
-            feature = tool.Parametric.find_for_element(element)
-            return bool(feature and feature.has_non_editable_path)
+            return cls.is_stair(element) or cls.is_door(element) or cls.is_window(element)
+
+        class Array:
+            @classmethod
+            def bake_children_transform(cls, parent_element: entity_instance, item: int) -> None:
+                modifier_data = list(cls.get_modifiers_data(parent_element))[item]
+                children = cls.get_children_objects(modifier_data)
+                for child in children:
+                    constraint = next((c for c in child.constraints if c.type == "CHILD_OF"), None)
+                    if constraint:
+                        with bpy.context.temp_override(object=child):
+                            bpy.ops.constraint.apply(constraint=constraint.name, owner="OBJECT")
+
+            @classmethod
+            def constrain_children_to_parent(cls, parent_element: ifcopenshell.entity_instance) -> None:
+                if not (parent_obj := tool.Ifc.get_object(parent_element)):
+                    return  # Filtered out, arrayed void, etc
+                assert isinstance(parent_obj, bpy.types.Object)
+                children = cls.get_all_children_objects(parent_element)
+                for child in children:
+                    constraint = next((c for c in child.constraints if c.type == "CHILD_OF"), None)
+                    if constraint:
+                        child.constraints.remove(constraint)
+                    constraint = child.constraints.new("CHILD_OF")
+                    constraint.name = "BBIM_Array_CHILD_OF"
+                    assert isinstance(constraint, bpy.types.ChildOfConstraint)
+                    constraint.target = parent_obj
+
+            @classmethod
+            def set_children_lock_state(
+                cls, parent_element: ifcopenshell.entity_instance, item: int, lock_state: bool = True
+            ) -> None:
+                modifier_data = list(cls.get_modifiers_data(parent_element))[item]
+                children = cls.get_children_objects(modifier_data)
+                for child_obj in children:
+                    Blender.lock_transform(child_obj, lock_state)
+
+            @classmethod
+            def remove_constraints(cls, parent_element: ifcopenshell.entity_instance) -> None:
+                children = cls.get_all_children_objects(parent_element)
+                for child in children:
+                    constraint = next((c for c in child.constraints if c.type == "CHILD_OF"), None)
+                    if constraint:
+                        child.constraints.remove(constraint)
+
+            @classmethod
+            def get_all_objects(cls, parent_element: ifcopenshell.entity_instance) -> list[bpy.types.Object]:
+                parent_obj = tool.Ifc.get_object(parent_element)
+                assert isinstance(parent_obj, bpy.types.Object)
+                children_objects = list(cls.get_all_children_objects(parent_element))
+                array_objects = [parent_obj] + children_objects  # We ensure the parent is at index 0
+                return array_objects
+
+            @classmethod
+            def get_all_children_objects(
+                cls, parent_element: ifcopenshell.entity_instance
+            ) -> Generator[bpy.types.Object, None, None]:
+                for array_modifier in cls.get_modifiers_data(parent_element):
+                    yield from cls.get_children_objects(array_modifier)
+
+            @classmethod
+            def get_modifiers_data(
+                cls, parent_element: ifcopenshell.entity_instance
+            ) -> Generator[dict[str, Any], None, None]:
+                array_pset = ifcopenshell.util.element.get_pset(parent_element, "BBIM_Array")
+                yield from json.loads(array_pset["Data"])
+
+            @classmethod
+            def get_children_objects(cls, modifier_data: dict[str, Any]) -> Generator[bpy.types.Object, None, None]:
+                child_guid: str
+                for child_guid in modifier_data["children"]:
+                    child_obj = tool.Blender.get_object_from_guid(child_guid)
+                    if child_obj:
+                        yield child_obj
 
     class Attribute:
         @classmethod