Fix bcf pypi build

Run black
Bump version to v0.8.0
2026-08-06 07:51:47 +00:00 · 2024-09-01 13:35:57 +10:00 · 2024-09-01 13:26:58 +10:00 · 2024-09-01 13:23:54 +10:00 · 2024-09-01 13:23:31 +10:00 · 2024-09-01 01:40:53 +01:00
1507 changed files with 150337 additions and 160606 deletions
@@ -22,7 +22,7 @@ jobs:
      - uses: actions/checkout@v2 # https://github.com/actions/checkout
      - uses: actions/setup-python@v2 # https://github.com/actions/setup-python
        with:
-          python-version: '3.10' # Version range or exact version of a Python version to use, using SemVer's version range syntax
+          python-version: '3.11' # Version range or exact version of a Python version to use, using SemVer's version range syntax
          architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
      - run: echo ${{ env.DATE }}
      - name: Get current date
@@ -32,7 +32,7 @@ jobs:
        run: |
          pip install build
          cd src/bcf &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -0,0 +1,12 @@
+name: ci-black-formatting
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  lint-formatting:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: psf/black@stable
@@ -1,81 +0,0 @@
-name: ci-blenderbim-daily
-
-on:
-  push:
-    paths:
-      - '.github/workflows/ci-blenderbim-matrix.yml'
-      - 'src/blenderbim/**'
-      - 'src/ifcopenshell-python/ifcopenshell/**'
-      - 'src/bcf/src/bcf/**'
-      - 'src/ifcclash/ifcclash/**'
-      - 'src/ifccobie/**'
-      - 'src/ifcdiff/**'
-      - 'src/ifccsv/**'
-      - 'src/ifcpatch/ifcpatch/**'
-      - 'src/ifc4d/ifc4d/**'
-      - 'src/ifc5d/ifc5d/**'
-      - 'src/ifccityjson/**'
-    branches:
-      - v0.8.0
-  workflow_dispatch:
-
-jobs:
-  activate:
-    runs-on: ubuntu-latest
-    if: |
-      github.repository == 'IfcOpenShell/IfcOpenShell'
-    steps:
-    - name: Set env
-      run: echo ok go
-
-  build:
-    needs: activate
-    name: ${{ matrix.config.name }}-${{ matrix.pyver }}
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        pyver: [py39, py310, py311, py312]
-        config:
-          - {
-            name: "Windows Build",
-            short_name: win,
-          }
-          - {
-            name: "Linux Build",
-            short_name: linux
-          }
-          - {
-            name: "MacOS Build",
-            short_name: macos
-          }
-          - {
-            name: "MacOS ARM Build",
-            short_name: macosm1
-          }
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2 # https://github.com/actions/setup-python
-        with:
-          architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
-          python-version: '3.11'
-      - name: Get current version
-        id: version
-        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
-      - name: Get current date
-        id: date
-        run: echo "date=$(date +'%y%m%d')" >> $GITHUB_OUTPUT
-      - name: Compile
-        run: |
-          cp -r src/blenderbim src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
-          cd src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
-          make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }}
-      - name: Upload zip file to release
-        uses: svenstaro/upload-release-action@v2
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }}/dist/blenderbim-${{steps.version.outputs.version}}.${{steps.date.outputs.date}}-${{ matrix.pyver }}-${{ matrix.config.short_name }}.zip
-          asset_name: blenderbim-${{steps.version.outputs.version}}.${{steps.date.outputs.date}}-${{ matrix.pyver }}-${{ matrix.config.short_name }}.zip
-          release_name: "blenderbim-${{steps.version.outputs.version}}.${{steps.date.outputs.date}} (unstable)"
-          tag: "blenderbim-${{steps.version.outputs.version}}.${{steps.date.outputs.date}}"
-          overwrite: true
@@ -1,4 +1,4 @@
-name: Publish-blenderbim-chocolatey package
+name: ci-bonsai-choco

 on:
  schedule:
@@ -9,11 +9,12 @@ on:
    #         │  │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
    #         *  * * * *
    - cron:  "30 0 * * *" # 30min past utc midnight
+  workflow_dispatch:

 env:
  major: 0
  minor: 0
-  name: blenderbim
+  name: bonsai
  choco_version: 1.1.0
  CHOCO_TOKEN:   ${{ secrets.CHOCO_TOKEN }}

@@ -41,5 +42,6 @@ jobs:
      - name: Check in release tags if we should do a choco release and perform the release if needed
        id: do_choco_release
        run: |
-          cd /home/runner/work/IfcOpenShell/IfcOpenShell/choco/blenderbim/ &&
+          pip install pygithub
+          cd /home/runner/work/IfcOpenShell/IfcOpenShell/choco/bonsai/ &&
          python3 choco_release.py
@@ -0,0 +1,155 @@
+name: ci-bonsai-daily
+
+on:
+  push:
+    paths:
+      - '.github/workflows/ci-bonsai-daily.yml'
+      - 'src/bonsai/**'
+      - 'src/ifcopenshell-python/ifcopenshell/**'
+      - 'src/bcf/bcf/**'
+      - 'src/ifcclash/ifcclash/**'
+      - 'src/ifccobie/**'
+      - 'src/ifcdiff/**'
+      - 'src/ifccsv/**'
+      - 'src/ifcpatch/ifcpatch/**'
+      - 'src/ifc4d/ifc4d/**'
+      - 'src/ifc5d/ifc5d/**'
+      - 'src/ifccityjson/**'
+    branches:
+      - v0.8.0
+  workflow_dispatch:
+
+jobs:
+  activate:
+    runs-on: ubuntu-latest
+    if: |
+      github.repository == 'IfcOpenShell/IfcOpenShell'
+    steps:
+    - name: Set env
+      run: echo ok go
+
+  build:
+    needs: activate
+    name: ${{ matrix.config.name }}-${{ matrix.pyver }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        pyver: [py311, py312]
+        config:
+          - {
+            name: "Windows Build",
+            short_name: win,
+          }
+          - {
+            name: "Linux Build",
+            short_name: linux,
+          }
+          - {
+            name: "MacOS Build",
+            short_name: macos,
+          }
+          - {
+            name: "MacOS ARM Build",
+            short_name: macosm1,
+          }
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2 # https://github.com/actions/setup-python
+        with:
+          architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
+          python-version: '3.11'
+      - name: Get current version
+        id: version
+        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +'%y%m%d')" >> $GITHUB_OUTPUT
+      - name: Compile
+        run: |
+          cd src/bonsai && make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }}
+      - name: Find zip file name
+        id: find_zip
+        run: |
+          filepath=$(ls src/bonsai/dist/bonsai_*.zip)
+          echo "filepath=$filepath" >> $GITHUB_OUTPUT
+          echo "filename=$(basename $filepath)" >> $GITHUB_OUTPUT
+      - name: Upload zip file to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ steps.find_zip.outputs.filepath }}
+          asset_name: ${{ steps.find_zip.outputs.filename }}
+          release_name: "bonsai-${{steps.version.outputs.version}}-alpha${{steps.date.outputs.date}} (unstable)"
+          tag: "bonsai-${{steps.version.outputs.version}}-alpha${{steps.date.outputs.date}}"
+          overwrite: true
+          body: "See README in https://github.com/IfcOpenShell/bonsai_unstable_repo/ on how to setup autoupdates for daily Bonsai builds."
+
+  update-extensions-repo-and-run-tests:
+    needs: [build]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout bonsai_unstable_repo repository
+        uses: actions/checkout@v2
+        with:
+          repository: IfcOpenShell/bonsai_unstable_repo
+          token: ${{ secrets.IOS_TO_BLENDER_REPO }}
+          path: bonsai_unstable_repo
+
+      - name: Update index.json on extensions repo
+        run: |
+          set -x -e
+
+          # Download Blender.
+          wget -q -O blender.tar.xz https://ftp.nluug.nl/pub/graphics/blender/release/Blender4.2/blender-4.2.0-linux-x64.tar.xz
+          tar -xf blender.tar.xz
+
+          # Setup Blender.
+          BLENDER_PATH=$(find blender-*/ -maxdepth 0 -exec readlink -f {} \;)
+          export PATH="$PATH:$BLENDER_PATH"
+          blender --version
+
+          cd bonsai_unstable_repo
+          pip install -r requirements.txt
+          python setup_extensions_repo.py --last-tag
+          git config --global user.name 'IfcOpenBot'
+          git config --global user.email 'IfcOpenBot@users.noreply.github.com'
+          git add index.json
+          git add readme.md
+          git commit -m "Update index.json"
+          git push
+      - name: Run bonsai tests
+        run: |
+          set -x -e
+          BLENDER_PATH=$(find blender-*/ -maxdepth 0 -exec readlink -f {} \;)
+          export PATH="$PATH:$BLENDER_PATH"
+          bonsai_zip="$(pwd)/$(ls bonsai_unstable_repo/bonsai_py311*-linux-x64.zip)"
+          blender --version
+          blender --command extension install-file -r user_default -e $bonsai_zip
+          blender --command extension list
+
+          wget -q -O sverchok.zip https://github.com/nortikin/sverchok/archive/refs/heads/master.zip
+          # ifcsverchok expecting sverchok to be named "sverchok" and not "sverchok-master".
+          unzip -q sverchok.zip
+          mv sverchok-master sverchok
+          zip -q -r sverchok.zip sverchok
+          rm -r sverchok
+          blender --command extension install-file -r user_default sverchok.zip
+
+          git clone https://github.com/IfcOpenShell/IfcOpenShell.git IfcOpenShell
+          cd IfcOpenShell/src/ifcsverchok
+          make dist
+          sverchok_zip="$(pwd)/dist/$(ls dist)"
+          blender --command extension install-file -r user_default $sverchok_zip
+
+          # Install Sun Position extension.
+          blender --online-mode --command extension sync
+          blender --online-mode --background --python-expr "import bpy; \
+          bpy.ops.extensions.package_install(repo_index=0, pkg_id='sun_position'); \
+          bpy.ops.preferences.addon_enable(module='bl_ext.blender_org.sun_position'); bpy.ops.wm.save_userpref()"
+
+          cd ../bonsai
+          pip install pytest-blender
+          blender --background --python scripts/setup_pytest.py
+          blender --python-expr "import bonsai; print(bonsai.bbim_semver); import ifcopenshell; print(ifcopenshell.version)" --background
+          make test
@@ -1,4 +1,9 @@
-name: ci-blenderbim
+name: ci-bonsai
+
+# Differences from ci-bonsai-daily.yml:
+# - make has IS_STABLE=TRUE
+# - action is never triggered and executed only manually
+# - doesn't add a current date to the release and tag

 on:
  workflow_dispatch:
@@ -19,7 +24,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        pyver: [py39, py310, py311, py312]
+        pyver: [py310, py311, py312]
        config:
          - {
            name: "Windows Build",
@@ -48,15 +53,20 @@ jobs:
        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
      - name: Compile
        run: |
-          cp -r src/blenderbim src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
-          cd src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
+          cd src/bonsai &&
          make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }} IS_STABLE=TRUE
+      - name: Find zip file name
+        id: find_zip
+        run: |
+          filepath=$(ls src/bonsai/dist/bonsai_*.zip)
+          echo "filepath=$filepath" >> $GITHUB_OUTPUT
+          echo "filename=$(basename $filepath)" >> $GITHUB_OUTPUT
      - name: Upload zip file to release
        uses: svenstaro/upload-release-action@v2
        with:
          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }}/dist/blenderbim-${{steps.version.outputs.version}}-${{ matrix.pyver }}-${{ matrix.config.short_name }}.zip
-          asset_name: blenderbim-${{steps.version.outputs.version}}-${{ matrix.pyver }}-${{ matrix.config.short_name }}.zip
-          release_name: "blenderbim-${{steps.version.outputs.version}}"
-          tag: "blenderbim-${{steps.version.outputs.version}}"
+          file: ${{ steps.find_zip.outputs.filepath }}
+          asset_name: ${{ steps.find_zip.outputs.filename }}
+          release_name: "bonsai-${{steps.version.outputs.version}}"
+          tag: "bonsai-${{steps.version.outputs.version}}"
          overwrite: true
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/bsdd &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifc4d &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifc5d &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifccityjson &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifcclash &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -0,0 +1,65 @@
+name: ci-ifcconvert
+
+on:
+  workflow_dispatch:
+
+jobs:
+  activate:
+    runs-on: ubuntu-latest
+    if: |
+      github.repository == 'IfcOpenShell/IfcOpenShell'
+    steps:
+    - name: Set env
+      run: echo ok go
+
+  build:
+    needs: activate
+    name: ${{ matrix.config.name }}-${{ matrix.pyver }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {
+            name: "Windows 64bit",
+            short_name: win64,
+          }
+          - {
+            name: "Windows 32bit",
+            short_name: win32,
+          }
+          - {
+            name: "Linux 64bit",
+            short_name: linux64
+          }
+          - {
+            name: "MacOS Intel 64bit",
+            short_name: macos64
+          }
+          - {
+            name: "MacOS Silicon 64bit",
+            short_name: macosm164
+          }
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2 # https://github.com/actions/setup-python
+        with:
+          python-version: '3.11' # Version range or exact version of a Python version to use, using SemVer's version range syntax
+          architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
+      - run: echo ${{ env.DATE }}
+      - name: Get current version
+        id: version
+        run: echo "version=$(cat VERSION)" >> $GITHUB_OUTPUT
+      - name: Compile
+        run: |
+          cd src/ifcopenshell-python &&
+          make zip-ifcconvert PLATFORM=${{ matrix.config.short_name }}
+      - name: Upload zip file to release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: src/ifcopenshell-python/dist/ifcconvert-${{ steps.version.outputs.version }}-${{ matrix.config.short_name }}.zip
+          asset_name: ifcconvert-${{ steps.version.outputs.version }}-${{ matrix.config.short_name }}.zip
+          release_name: "ifcconvert-${{steps.version.outputs.version}}"
+          tag: "ifcconvert-${{steps.version.outputs.version}}"
+          overwrite: true
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifccsv &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifcdiff &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifcfm &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -90,7 +90,10 @@ jobs:
                  return
          
              # sort the versions in descending order
-              versions = sorted(versions, reverse=True)
+              print(f"Before reversal: {versions=}")
+              versions.reverse()
+              print(f"After reversal: {versions=}")
+          
              releases = versions[number_of_supported_versions:]
          
              for release in releases:
@@ -35,7 +35,7 @@ jobs:

      - name: Version + date str
        id: verdate
-        run: echo "verdate='${{ steps.version.outputs.version }}.${{ steps.date.outputs.date }}'" >> $GITHUB_OUTPUT
+        run: echo "verdate='${{ steps.version.outputs.version }}alpha${{ steps.date.outputs.date }}'" >> $GITHUB_OUTPUT

      
  test:
@@ -57,7 +57,7 @@ jobs:
          pip install build
          cp -r src/ifcopenshell-python src/ifcopenshell_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
          cd src/ifcopenshell_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
-          make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }}
+          make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }} IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifcpatch &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -26,7 +26,7 @@ jobs:
        run: |
          pip install build
          cd src/ifctester &&
-          make dist
+          make dist IS_STABLE=TRUE
      - name: Publish a Python distribution to PyPI
        uses: ortega2247/pypi-upload-action@master
        with:
@@ -47,6 +47,7 @@ jobs:
        run: |
          python -m pip install --upgrade pip
          pip install xmlschema xsdata numpy lxml pytest isodate lark networkx tabulate python-dateutil shapely
+          pip install mathutils
          pip install src/bcf --no-deps
          pip install https://github.com/Andrej730/aud/archive/refs/heads/master-reduced-size.zip

@@ -106,7 +107,7 @@ jobs:

      - name: Run IfcConvert on Sample files
        run: |
-          (find test/input src/blenderbim/test/files -name '*.ifc' | while read i; do \
+          (find test/input src/bonsai/test/files -name '*.ifc' | while read i; do \
            echo $i | tee -a log; \
            timeout 1m "$(which IfcConvert)" -yv "$i" "$i.obj" --validate >> log 2>&1; \
            echo $i $? >> statuses; \
@@ -125,4 +126,11 @@ jobs:
          python tests.py
          cd ../src/ifcopenshell-python
          mv ifcopenshell ifcopenshell-local # Force testing on installed module
-          make test-safe
+          make test
+          cd ../bcf && make test
+          pip install requests
+          cd ../bsdd && make test
+          pip install deepdiff
+          cd ../ifcdiff && make test
+          cd ../ifcpatch && make test
+          cd ../ifctester && make test
@@ -8,12 +8,12 @@ on:
 jobs:
  activate:
    if: github.repository == 'IfcOpenShell/IfcOpenShell'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    steps:
    - run: echo ok go
  build:
    needs: activate
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v2
@@ -52,8 +52,8 @@ jobs:
           -DOCC_INCLUDE_DIR=/usr/include/opencascade \
           -DOCC_LIBRARY_DIR=/usr/lib/x86_64-linux-gnu \
           -DPYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3 \
-           -DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.8 \
-           -DPYTHON_LIBRARY:FILEPATH=/usr/lib/x86_64-linux-gnu/libpython3.8.so \
+           -DPYTHON_INCLUDE_DIR:PATH=/usr/include/python3.10 \
+           -DPYTHON_LIBRARY:FILEPATH=/usr/lib/x86_64-linux-gnu/libpython3.10.so \
           -DLIBXML2_INCLUDE_DIR=/usr/include/libxml2 \
           -DLIBXML2_LIBRARIES=/usr/lib/x86_64-linux-gnu/libxml2.so \
           -DGLTF_SUPPORT=On \
@@ -73,19 +73,16 @@ src/ifcopenshell-python/test/build
 # mypy cache
 .mypy_cache

-# blenderbim libs
-src/blenderbim/blenderbim/libs
+# bonsai i18n
+src/bonsai/bonsai/translations.py

-# blenderbim i18n
-src/blenderbim/blenderbim/translations.py
+# bonsai test temp files
+src/bonsai/test/files/temp
+src/bonsai/test/files/basic.ifc.cache.blend
+src/bonsai/test/files/basic.ifc.cache.sqlite

-# blenderbim test temp files
-src/blenderbim/test/files/temp
-src/blenderbim/test/files/basic.ifc.cache.blend
-src/blenderbim/test/files/basic.ifc.cache.sqlite
-
-src/blenderbim/drawings
-src/blenderbim/layouts
+src/bonsai/drawings
+src/bonsai/layouts

 # ifcopenshell swig and compiled files
 src/ifcopenshell-python/ifcopenshell/_ifcopenshell_wrapper.so
@@ -100,4 +97,4 @@ src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.py
 .cache

 # Brickschema
-src/blenderbim/blenderbim/bim/schema/Brick.ttl
+src/bonsai/bonsai/bim/schema/Brick.ttl
@@ -1,6 +1,6 @@
 # -*- mode: Dockerfile -*-

-FROM ubuntu:focal
+FROM ubuntu:22.04

 ARG CHANNEL
 ENV CHANNEL=${CHANNEL:-latest}
@@ -23,7 +23,7 @@ RUN echo "deb http://archive.ubuntu.com/ubuntu focal-proposed main restricted" |
    echo "deb http://archive.ubuntu.com/ubuntu focal-proposed multiverse" |  tee -a /etc/apt/sources.list; \
    apt-get -qq update; \
    apt-get -y install tzdata dos2unix rsync; \
-    apt-get -y install python3 libxml2 libpython3.8 \
+    apt-get -y install python3 libxml2 libpython3.10 \
                    libboost-all-dev \
                    libocct-foundation-dev libocct-modeling-algorithms-dev libocct-modeling-data-dev \
                    libocct-ocaf-dev libocct-visualization-dev libocct-data-exchange-dev \
@@ -12,7 +12,7 @@ is implemented for the IFC releases [IFC2x3 TC1] and [IFC4 Add2 TC1]. Extending
 is possible at compile-time when using C++ and at run-time when using Python.

 In addition to a C++ and Python API, IfcOpenShell comes with an ecosystem of tools, notably including IfcConvert (an application
-to convert IFC models to other formats), the BlenderBIM Add-on (an add-on to Blender providing a graphical IFC authoring platform),
+to convert IFC models to other formats), Bonsai (an add-on to Blender providing a graphical IFC authoring platform),
 and many other libraries, CLI apps, and more. Support is also provided for auxiliary standards such as BCF and IDS.

 For more information, see:
@@ -22,10 +22,10 @@ For more information, see:
  * [IfcOpenShell C++ Installation](https://docs.ifcopenshell.org/ifcopenshell/installation.html)
  * [IfcOpenShell Python Installation](https://docs.ifcopenshell.org/ifcopenshell-python/installation.html)
  * [IfcOpenShell Python Hello World Tutorial](https://docs.ifcopenshell.org/ifcopenshell-python/hello_world.html)
-* [BlenderBIM Add-on Website](https://blenderbim.org)
-* [BlenderBIM Add-on Documentation](https://docs.blenderbim.org/index.html)
-  * [Add-on Installation](https://docs.blenderbim.org/users/installation.html)
-  * [Exploring an IFC model](https://docs.blenderbim.org/users/exploring_an_ifc_model.html)
+* [Bonsai Website](https://bonsaibim.org)
+* [Bonsai Documentation](https://docs.bonsaibim.org/index.html)
+  * [Add-on Installation](https://docs.bonsaibim.org/users/installation.html)
+  * [Exploring an IFC model](https://docs.bonsaibim.org/users/exploring_an_ifc_model.html)
 
 Development is sponsored through your generous donations!

@@ -37,7 +37,7 @@ Contents
 | Name                      | Description                                                           | License             | Service |
 | ------------------------- | --------------------------------------------------------------------- | ------------------- | ------- |
 | bcf                       | Library to read and write BCF-XML and query OpenCDE BCF-API modules   | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/bcf-client?label=PyPI&color=006dad)](https://pypi.org/project/bcf-client/) |
-| blenderbim                | Add-on to Blender providing a graphical native IFC authoring platform | GPL-3.0-or-later    | [![Official](https://img.shields.io/badge/BlenderBIM.org-Download-70ba35)](https://blenderbim.org/download.html) [![GitHub Unstable](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=blenderbim-*&label=GitHub-Unstable&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=blenderbim&expanded=true) [![Chocolatey](https://img.shields.io/chocolatey/v/blenderbim-nightly?label=Chocolatey&color=5c9fd8)](https://community.chocolatey.org/packages/blenderbim-nightly/) |
+| bonsai                    | Add-on to Blender providing a graphical native IFC authoring platform | GPL-3.0-or-later    | [![Official](https://img.shields.io/badge/BonsaiBIM.org-Download-70ba35)](https://bonsaibim.org/download.html) [![GitHub Unstable](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=bonsai-*&label=GitHub-Unstable&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=bonsai&expanded=true) [![Chocolatey](https://img.shields.io/chocolatey/v/blenderbim-nightly?label=Chocolatey&color=5c9fd8)](https://community.chocolatey.org/packages/blenderbim-nightly/) |
 | bsdd                      | Library to query the bSDD API                                         | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/bsdd?label=PyPI&color=006dad)](https://pypi.org/project/bsdd/) |
 | ifc2ca                    | Utility to convert IFC structural analysis models to Code_Aster       | LGPL-3.0-or-later   |
 | ifc4d                     | Convert to and from IFC and project management software               | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifc4d?label=PyPI&color=006dad)](https://pypi.org/project/ifc4d/) |
@@ -46,12 +46,12 @@ Contents
 | ifcblender                | Historic Blender IFC import add-on                                    | LGPL-3.0-or-later\* |
 | ifccityjson               | Convert CityJSON to IFC                                               | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifccityjson?label=PyPI&color=006dad)](https://pypi.org/project/ifccityjson/) |
 | ifcclash                  | Clash detection library and CLI app                                   | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcclash?label=PyPI&color=006dad)](https://pypi.org/project/ifcclash/) |
-| ifcconvert                | CLI app to convert IFC to many other formats                          | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcconvert/installation.html)
+| ifcconvert                | CLI app to convert IFC to many other formats                          | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcconvert/installation.html) [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcconvert-*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcconvert&expanded=true)
 | ifccsv                    | Library and CLI app to export and import schedules from IFC           | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifccsv?label=PyPI&color=006dad)](https://pypi.org/project/ifccsv/) |
 | ifcdiff                   | Compare changes between IFC models                                    | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcdiff?label=PyPI&color=006dad)](https://pypi.org/project/ifcdiff/) |
 | ifcfm                     | Extract IFC data for FM handover requirements                         | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcfm?label=PyPI&color=006dad)](https://pypi.org/project/ifcfm/) |
 | ifcmax                    | Historic extension for IFC support in 3DS Max                         | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcmax.html)
-| ifcopenshell-python       | Python library for IFC manipulation                                   | LGPL-3.0-or-later\* | [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcopenshell-python-*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcopenshell-python&expanded=true) [![PyPI](https://img.shields.io/pypi/v/ifcopenshell?label=PyPI&color=006dad)](https://pypi.org/project/ifcopenshell/) [![Anaconda](https://img.shields.io/conda/vn/conda-forge/ifcopenshell?label=Anaconda&color=43b02a)](https://anaconda.org/conda-forge/ifcopenshell) [![Anaconda](https://img.shields.io/conda/vn/ifcopenshell/ifcopenshell?label=Anaconda-Unstable&color=43b02a)](https://anaconda.org/ifcopenshell/ifcopenshell) [![Docker](https://img.shields.io/docker/pulls/aecgeeks/ifcopenshell?label=Docker&color=1D63ED)](https://hub.docker.com/r/aecgeeks/ifcopenshell) [![AUR](https://img.shields.io/aur/version/ifcopenshell?label=AUR&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell) [![AUR Unstable](https://img.shields.io/aur/version/ifcopenshell-git?label=AUR-Unstable&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell-git) |
+| ifcopenshell-python       | Python library for IFC manipulation                                   | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcopenshell-python/installation.html) [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcopenshell-python-*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcopenshell-python&expanded=true) [![PyPI](https://img.shields.io/pypi/v/ifcopenshell?label=PyPI&color=006dad)](https://pypi.org/project/ifcopenshell/) [![Anaconda](https://img.shields.io/conda/vn/conda-forge/ifcopenshell?label=Anaconda&color=43b02a)](https://anaconda.org/conda-forge/ifcopenshell) [![Anaconda](https://img.shields.io/conda/vn/ifcopenshell/ifcopenshell?label=Anaconda-Unstable&color=43b02a)](https://anaconda.org/ifcopenshell/ifcopenshell) [![Docker](https://img.shields.io/docker/pulls/aecgeeks/ifcopenshell?label=Docker&color=1D63ED)](https://hub.docker.com/r/aecgeeks/ifcopenshell) [![AUR](https://img.shields.io/aur/version/ifcopenshell?label=AUR&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell) [![AUR Unstable](https://img.shields.io/aur/version/ifcopenshell-git?label=AUR-Unstable&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell-git) |
 | ifcpatch                  | Utility to run pre-packaged scripts to manipulate IFCs                | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcpatch?label=PyPI&color=006dad)](https://pypi.org/project/ifcpatch/) |
 | ifcsverchok               | Blender Add-on for visual node programming with IFC                   | GPL-3.0-or-later    | [![GitHub Unstable](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcsverchok-*.*.*.*&label=GitHub-Unstable&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcsverchok&expanded=true)
 | ifctester                 | Library, CLI and webapp for IDS model auditing                        | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifctester?label=PyPI&color=006dad)](https://pypi.org/project/ifctester/) |
@@ -1 +1 @@
-0.7.10
+0.8.0
@@ -15,7 +15,7 @@
    <licenseUrl>https://github.com/IfcOpenShell/IfcOpenShell/blob/v0.8.0/COPYING</licenseUrl>
    <requireLicenseAcceptance>true</requireLicenseAcceptance>
    <projectSourceUrl>https://github.com/IfcOpenShell/IfcOpenShell</projectSourceUrl>
-    <docsUrl>https://docs.blenderbim.org/</docsUrl>
+    <docsUrl>https://docs.bonsaibim.org/</docsUrl>
    <!--<mailingListUrl></mailingListUrl>-->
    <bugTrackerUrl>https://github.com/IfcOpenShell/IfcOpenShell/issues</bugTrackerUrl>
    <tags>blender bim blenderbim ifc python opensource foss</tags>
@@ -14,9 +14,11 @@ import os
 import pathlib
 import re
 from urllib import request
+from github import Github
+from typing import NoReturn


-def get_repo_tag_names():
+def get_repo_tag_names() -> list[str]:
    git_return = os.popen("git tag -l").read()
    tag_names = [tag_name for tag_name in git_return.split("\n") if tag_name]
    print(f"{len(tag_names)} tag_names found in repo")
@@ -43,7 +45,7 @@ def get_latest_choco_blender_version() -> list:
    return re.findall(RE_BLENDER_VERSION_MIN_MAJ_PAT, html_txt)


-def get_file_sha256_hash(file_path):
+def get_file_sha256_hash(file_path: str) -> str:
    BLOCKSIZE = 65536
    hasher = hashlib.sha256()

@@ -56,16 +58,29 @@ def get_file_sha256_hash(file_path):
    return hasher.hexdigest()


-def quit_with_error_message(message: str):
+def quit_with_error_message(message: str) -> NoReturn:
    print(f"ERROR: {message}")
    quit(0)


+def get_release_zip(tag: str) -> tuple[str, str]:
+    g = Github()
+    repo = g.get_repo("IfcOpenShell/IfcOpenShell")
+    release = repo.get_release(tag)
+    for asset in release.get_assets():
+        asset_name = asset.name
+        if python_version not in asset_name:
+            continue
+        if TARGET_OS not in asset_name:
+            continue
+        return (asset_name, asset.browser_download_url)
+    raise Exception(f"Couldn't find the release matching '{python_version}' and '{TARGET_OS}' in tag '{tag}'.")
+
+
 start = datetime.datetime.now()

 URL_CHOCO_PACKAGE  = "https://community.chocolatey.org/packages/blender"
 URL_BLENDER_CMAKE  = "https://raw.githubusercontent.com/blender/blender/{}/build_files/cmake/Modules/FindPythonLibsUnix.cmake"
-URL_IFCOS_RELEASES = "https://github.com/IfcOpenShell/IfcOpenShell/releases/download/"
 RE_BLENDER_VERSION_MIN_MAJ        = r"Latest Version.+<span>Blender (\d+\.\d+)\..+</span>"
 RE_BLENDER_VERSION_MIN_MAJ_PAT    = r"Latest Version.+<span>Blender (\d+\.\d+\.\d+)</span>"
 RE_BLENDER_PYTHON_VERSION_MAJ_MIN = r"\(_PYTHON_VERSION_SUPPORTED (\d+\.\d+)\)"
@@ -79,7 +94,7 @@ os.chdir(BLENDERBIM_DIR)
 blenderbim_date_yesterday = (datetime.datetime.now() - datetime.timedelta(days=1)).strftime("%y%m%d")
 should_release = False
 target_release_tag = ""
-target_os = "win"
+TARGET_OS = "windows-x64"

 git_status = os.popen("git status").read()
 print(git_status)
@@ -130,10 +145,7 @@ print(f"{python_version=}")
 blenderbim_build_version = target_release_tag.replace("blenderbim-", "")

 # url_blenderbim_py3x_win_zip
-release_zip_file_name = f"{target_release_tag}-{python_version}-{target_os}.zip"
-
-# download release
-url_blenderbim_py3x_win_zip = f"{URL_IFCOS_RELEASES}{target_release_tag}/{release_zip_file_name}"
+release_zip_file_name, url_blenderbim_py3x_win_zip = get_release_zip(target_release_tag)
 os.popen(f"wget {url_blenderbim_py3x_win_zip} --no-verbose").read()

 # sha256sum_blenderbim_py310_win_zip
@@ -221,10 +221,11 @@ endif()

 if(GLTF_SUPPORT OR CITYJSON_SUPPORT)
    UNIFY_ENVVARS_AND_CACHE(JSON_INCLUDE_DIR)
-    find_file(json_hpp "json.hpp" ${JSON_INCLUDE_DIR}/nlohmann)
+    find_path(json_header_path "nlohmann/json.hpp" HINTS ${JSON_INCLUDE_DIR})
+    set(JSON_INCLUDE_DIR ${json_header_path})

-    if(json_hpp)
-        message(STATUS "JSON for Modern C++ header file found")
+    if(json_header_path)
+        message(STATUS "JSON for Modern C++ header file found in ${JSON_INCLUDE_DIR}")
    else()
        message(FATAL_ERROR "Unable to find JSON for Modern C++ header file, aborting")
    endif()
@@ -76,14 +76,14 @@ about:
    For more information, see:
    
    * [IfcOpenShell Website](http://ifcopenshell.org)
-    * [IfcOpenShell Documentation](http://blenderbim.org/docs-python)
-    * [IfcOpenShell C++ Installation](https://blenderbim.org/docs-python/ifcopenshell/installation.html)
-    * [IfcOpenShell Python Installation](https://blenderbim.org/docs-python/ifcopenshell-python/installation.html)
-    * [IfcOpenShell Python Hello World Tutorial](https://blenderbim.org/docs-python/ifcopenshell-python/hello_world.html)
-    * [BlenderBIM Add-on Website](https://blenderbim.org)
-    * [BlenderBIM Add-on Documentation](http://blenderbim.org/docs)
-    * [Add-on Installation](https://blenderbim.org/docs/users/installation.html)
-    * [Exploring an IFC model](https://blenderbim.org/docs/users/exploring_an_ifc_model.html)
+    * [IfcOpenShell Documentation](http://bonsaibim.org/docs-python)
+    * [IfcOpenShell C++ Installation](https://bonsaibim.org/docs-python/ifcopenshell/installation.html)
+    * [IfcOpenShell Python Installation](https://bonsaibim.org/docs-python/ifcopenshell-python/installation.html)
+    * [IfcOpenShell Python Hello World Tutorial](https://bonsaibim.org/docs-python/ifcopenshell-python/hello_world.html)
+    * [Bonsai Website](https://bonsaibim.org)
+    * [Bonsai Documentation](http://bonsaibim.org/docs)
+    * [Add-on Installation](https://bonsaibim.org/docs/users/installation.html)
+    * [Exploring an IFC model](https://bonsaibim.org/docs/users/exploring_an_ifc_model.html)
    
    <table>
      <thead>
@@ -81,7 +81,7 @@ ADD_COMMIT_SHA = os.getenv("ADD_COMMIT_SHA")
 PYTHON_VERSIONS = ["3.9.11", "3.10.3", "3.11.8", "3.12.1"]
 JSON_VERSION = "v3.6.1"
 OCE_VERSION = "0.18.3"
-OCCT_VERSION = "7.7.1"
+OCCT_VERSION = "7.5.3"
 BOOST_VERSION = "1.80.0"
 PCRE_VERSION = "8.41"
 LIBXML2_VERSION = "2.9.11"
@@ -1,5 +1,34 @@
 [tool.black]
 line-length = 120
+include = '''
+    src/(
+        bcf
+        |bcfserver
+        |blenderbim
+        |bsdd
+        |foundationserver
+        |ifc2ca
+        |ifc4d
+        |ifc5d
+        |ifcbimtester
+        |ifcblender
+        |ifccityjson
+        |ifcclash
+        |ifccsv
+        |ifcdiff
+        |ifcfm
+        |ifcpatch
+        |ifctester
+        |ifcopenshell-python
+        |ifcsverchok
+        |opencdeserver
+    )/.*.py$
+'''
+extend-exclude = '''
+    src/ifcopenshell-python/ifcopenshell/express/*
+    |src/ifcopenshell-python/ifcopenshell/mvd/*
+    |src/ifc2ca/templates/*
+'''

 [tool.pyright]
 reportInvalidTypeForm = false
@@ -16,11 +16,8 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with BCF.  If not, see <http://www.gnu.org/licenses/>.

-VERSION:=$(shell cat ../../VERSION)
-SED:=sed -i
-ifeq ($(UNAME_S),Darwin)
-SED:=sed -i '' -e
-endif
+PACKAGE_NAME:=bcf
+include ../common.mk

 .PHONY: ci
 ci:
@@ -33,19 +30,12 @@ license:
 # TODO: make this based on xsd file presence
 .PHONY: models
 models:
-	cd src && xsdata generate -p bcf.v2.model --unnest-classes --kw-only --slots -ds Google bcf/v2/xsd
-	cd src && xsdata generate -p bcf.v3.model --unnest-classes --kw-only --slots -ds Google bcf/v3/xsd
+	xsdata generate -p bcf.v2.model --unnest-classes --kw-only --slots -ds Google bcf/v2/xsd
+	xsdata generate -p bcf.v3.model --unnest-classes --kw-only --slots -ds Google bcf/v3/xsd

-.PHONY: dist
-dist:
-	rm -rf dist
-	cp pyproject.toml pyproject.toml.bak
-	cp src/bcf/__init__.py __init__.py.bak
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' pyproject.toml
-	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' src/bcf/__init__.py
-	python -m build
-	mv pyproject.toml.bak pyproject.toml
-	mv __init__.py.bak src/bcf/__init__.py
+.PHONY: test
+test:
+	pytest -p no:pytest-blender tests

 # .PHONY
 # api:
@@ -3,3 +3,7 @@
 A simple Python implementation of the BCF standard. Manipulation of BCF-XML is
 available via `bcfxml.py` and manipulation of BCF-API is available via
 `bcfapi.py`.
+
+Python files in 'model' folder are automatically generated from .xsd files (located in 'xsd' folder).
+To regenerate them you can use `make models`.
+The only exception is 'v2/model/extensions.py', see it's note for the details.
@@ -0,0 +1,28 @@
+import bcf.v2.model.extensions
+import bcf.v3.model.extensions
+from typing import NamedTuple, Union
+from dataclasses import fields
+
+
+class AttributeData(NamedTuple):
+    attr_type: type
+    subattr_name: str
+    subattr_xsd_name: str
+
+
+Extensions = Union[bcf.v2.model.extensions.Extensions, bcf.v3.model.extensions.Extensions]
+
+
+def get_extensions_attributes(extensions: Extensions) -> dict[str, AttributeData]:
+    """Return mapping of xsd attribute name to a tuple that consists of:
+    - Extensions attribute name
+    - Extensions attribute type type
+    - subattribute name"""
+    possible_attributes = {}
+    for field in fields(type(extensions)):
+        field_type = field.type.__args__[0]  # type: ignore [reportAttributeAccessIssue]
+        subfield = next(iter(fields(field_type)))
+        xsd_name = subfield.metadata["name"]
+        possible_attributes[field.name] = AttributeData(field_type, subfield.name, xsd_name)
+
+    return possible_attributes
@@ -0,0 +1,10 @@
+import bcf.v2.model
+import bcf.v3.model
+from typing import Union
+
+BimSnippet = Union[bcf.v2.model.BimSnippet, bcf.v3.model.BimSnippet]
+BitMap = Union[bcf.v2.model.VisualizationInfoBitmap, bcf.v3.model.Bitmap]
+DocumentReference = Union[bcf.v2.model.TopicDocumentReference, bcf.v3.model.DocumentReference]
+HeaderFile = Union[bcf.v2.model.HeaderFile, bcf.v3.model.File]
+Topic = Union[bcf.v2.model.Topic, bcf.v3.model.Topic]
+ViewPoint = Union[bcf.v2.model.ViewPoint, bcf.v3.model.ViewPoint]
@@ -0,0 +1,101 @@
+import tempfile
+import bcf.v2.bcfxml
+import bcf.v2.model
+import bcf.v2.topic
+import bcf.v3.bcfxml
+import bcf.v3.model
+import bcf.v3.topic
+import bcf.agnostic.model as mdl
+from pathlib import Path
+from typing import Union, Optional
+from typing_extensions import assert_never
+
+TopicHandler = Union[bcf.v2.topic.TopicHandler, bcf.v3.topic.TopicHandler]
+
+
+def extract_file(
+    topic: TopicHandler,
+    entity: Union[mdl.HeaderFile, mdl.BimSnippet, mdl.DocumentReference, mdl.BitMap],
+    bcfxml: Optional[Union[bcf.v2.bcfxml.BcfXml, bcf.v3.bcfxml.BcfXml]] = None,
+    outfile: Optional[Path] = None,
+) -> Union[Path, str, None]:
+    """Extracts an element with a file into a temporary directory
+
+    These include header files, bim snippets, document references, and
+    viewpoint bitmaps. External reference are not downloaded. Instead, the
+    URI reference is returned.
+
+    :param entity: The entity with a file reference to extract
+    :param outfile: If provided, save the header file to that location.
+        Otherwise, a temporary directory is created and the filename is
+        derived from the header's original filename.
+    :param bcfxml: The BCF XML file to use for resolving document references files.
+        Required only for BCF v3 document references (in BCF v3 internal documents
+        are stored at BCF root, not in the topic).
+    :return: The filepath of the extracted file. It may be a URL if the
+        header file is external.
+    """
+    if isinstance(entity, mdl.DocumentReference):
+        if isinstance(entity, bcf.v2.model.TopicDocumentReference):
+            reference = entity.referenced_document
+        else:
+            reference = entity.document_guid
+    else:
+        reference = entity.reference
+
+    if not reference:
+        return None
+
+    # For v3 document references external documents are detected by empty document_guid.
+    # External bitmaps are not supported by bcf.
+    if not isinstance(entity, (bcf.v3.model.DocumentReference, mdl.BitMap)) and entity.is_external:
+        return reference
+
+    if isinstance(entity, bcf.v3.model.DocumentReference):
+        # Extract document reference filename and contents.
+        if not bcfxml:
+            raise TypeError("bcfxml is required for BCF v3 document references.")
+        assert isinstance(bcfxml, bcf.v3.bcfxml.BcfXml)
+        error_msg = f"BCF XML is missing document with guid '{reference}'."
+        if not bcfxml.documents:
+            raise Exception(error_msg)
+        definition_docs = bcfxml.documents.definition.documents
+        if not definition_docs:
+            raise Exception(error_msg)
+        docs = next((doc for doc in definition_docs.document if doc.guid == reference), None)
+        if not docs:
+            raise Exception(error_msg)
+        filename = docs.filename
+        bytes_data = bcfxml.documents.documents[filename]
+    else:
+        if isinstance(entity, mdl.BimSnippet):
+            bytes_data = topic.bim_snippet
+            assert isinstance(bytes_data, bytes)
+        elif isinstance(entity, mdl.HeaderFile):
+            bytes_data = topic.reference_files[reference]
+        elif isinstance(entity, mdl.BitMap):
+            bytes_data = next(
+                byte_data
+                for vp in topic.viewpoints.values()
+                for data_reference, byte_data in vp.bitmaps.items()
+                if data_reference == reference
+            )
+        elif isinstance(entity, bcf.v2.model.TopicDocumentReference):
+            assert isinstance(topic, bcf.v2.topic.TopicHandler)
+            bytes_data = topic.document_references[reference]
+        else:
+            assert_never(entity)
+
+        # We don't really need it if 'outfile' is None, just keeping type checker happy.
+        if isinstance(entity, mdl.HeaderFile) and entity.filename:
+            filename = entity.filename
+        else:
+            filename = Path(reference).name
+
+    if not outfile:
+        outfile = Path(tempfile.mkdtemp()) / filename
+
+    with open(outfile, "wb") as f:
+        f.write(bytes_data)
+
+    return outfile
@@ -0,0 +1,5 @@
+import bcf.v2.visinfo
+import bcf.v3.visinfo
+from typing import Union
+
+VisualizationInfoHandler = Union[bcf.v2.visinfo.VisualizationInfoHandler, bcf.v3.visinfo.VisualizationInfoHandler]
@@ -18,6 +18,7 @@ GNU Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public License
 along with BCF.  If not, see <http://www.gnu.org/licenses/>.
 """
+
 import zipfile
 from pathlib import Path
 from typing import Optional, Union
@@ -29,9 +30,10 @@ from bcf.v3.model import Version as Version3
 from bcf.xml_parser import AbstractXmlParserSerializer, XmlParserSerializer


-def load(
-    filepath: Path, xml_handler: Optional[AbstractXmlParserSerializer] = None
-) -> Optional[Union[BcfXml2, BcfXml3]]:
+BcfXml = Union[BcfXml2, BcfXml3]
+
+
+def load(filepath: Path, xml_handler: Optional[AbstractXmlParserSerializer] = None) -> Optional[BcfXml]:
    """
    Load a BCF file.

@@ -5,8 +5,8 @@ from numpy.typing import NDArray


 def camera_vectors_from_element_placement(
-    elem_placement: NDArray[np.float_],
-) -> tuple[NDArray[np.float_], NDArray[np.float_], NDArray[np.float_]]:
+    elem_placement: NDArray[np.float64],
+) -> tuple[NDArray[np.float64], NDArray[np.float64], NDArray[np.float64]]:
    """
    Calculate the vectors of a camera pointing to an element.

@@ -21,8 +21,8 @@ def camera_vectors_from_element_placement(


 def camera_vectors_from_target_position(
-    target_position: NDArray[np.float_], offset: Optional[NDArray[np.float_]] = None
-) -> tuple[NDArray[np.float_], NDArray[np.float_], NDArray[np.float_]]:
+    target_position: NDArray[np.float64], offset: Optional[NDArray[np.float64]] = None
+) -> tuple[NDArray[np.float64], NDArray[np.float64], NDArray[np.float64]]:
    """
    Calculate the vectors of a camera pointing to a target point.

@@ -50,7 +50,7 @@ def camera_vectors_from_target_position(
    # return camera_position, -mat[:3, 2], mat[:3, 1]


-def unit_vector(v: NDArray[np.float_]) -> NDArray[np.float_]:
+def unit_vector(v: NDArray[np.float64]) -> NDArray[np.float64]:
    """
    Return the unit vector of a vector.

@@ -5,6 +5,7 @@ Copyright (c) 2017-2020 Anthon van der Neut, Ruamel bvba

 original idea from https://stackoverflow.com/a/19722365/1307905
 """
+
 import zipfile
 from io import BytesIO
 from os import PathLike
@@ -13,8 +14,7 @@ from typing import Any, Optional, Protocol


 class ZipFileInterface(Protocol):
-    def writestr(self, filename_in_zip: str | zipfile.ZipInfo, file_contents: bytes | str) -> None:
-        ...
+    def writestr(self, filename_in_zip: str | zipfile.ZipInfo, file_contents: bytes | str) -> None: ...


 class InMemoryZipFile:
@@ -1,11 +1,14 @@
 """BCF XML V2 handler."""
+
 import uuid
 import warnings
 import zipfile
 from pathlib import Path
 from typing import Any, NoReturn, Optional, TypeVar

+import bcf.agnostic.extensions
 import bcf.v2.model as mdl
+import bcf.v2.model.extensions as mdl_extensions
 from bcf.inmemory_zipfile import InMemoryZipFile, ZipFileInterface
 from bcf.v2.topic import TopicHandler
 from bcf.xml_parser import AbstractXmlParserSerializer, XmlParserSerializer
@@ -23,7 +26,8 @@ class BcfXml:
        self._xml_handler = xml_handler or XmlParserSerializer()
        self._version: Optional[mdl.Version] = None
        self._project_info: Optional[mdl.ProjectExtension] = None
-        self._topics: dict[str, TopicHandler] = {}
+        self._extensions: Optional[mdl_extensions.Extensions] = None
+        self._topics: Optional[dict[str, TopicHandler]] = None
        self._extension_schema: Optional[bytes] = None
        self._zip_file = self._load_zip_file()

@@ -84,24 +88,63 @@ class BcfXml:
    def extension_schema(self, value: bytes) -> None:
        self._extension_schema = value

+    @property
+    def extensions(self) -> Optional[mdl_extensions.Extensions]:
+        """BCF extensions."""
+
+        if not self._extensions and self.extension_schema:
+            import io
+            from xml.etree import ElementTree as etree
+
+            extensions = mdl_extensions.Extensions()
+
+            xs = "{http://www.w3.org/2001/XMLSchema}"
+            root = etree.parse(io.BytesIO((self.extension_schema)))
+
+            attrs = bcf.agnostic.extensions.get_extensions_attributes(extensions)
+            xsd_to_attrs = {v.subattr_xsd_name: k for k, v in attrs.items()}
+            for node in root.findall(f".//{xs}restriction"):
+                attr_type = node.attrib.get("base")
+                if not attr_type:
+                    continue
+                attr_name = xsd_to_attrs.get(attr_type)
+                if attr_name is None:
+                    continue
+                values = []
+                for enum in node.findall(f".//{xs}enumeration"):
+                    values.append(enum.attrib["value"])
+                if not values:
+                    continue
+                attr_data = attrs[attr_name]
+                attr = attr_data.attr_type()
+                setattr(attr, attr_data.subattr_name, values)
+                setattr(extensions, attr_name, attr)
+
+            self._extensions = extensions
+        return self._extensions
+
+    @extensions.setter
+    def extensions(self, value: Optional[mdl_extensions.Extensions]) -> None:
+        self._extensions = value
+
    @property
    def topics(self) -> dict[str, TopicHandler]:
        """BCF topics."""
-        if not self._topics and self._zip_file:
-            self._topics = self._load_topics(self._zip_file, self._xml_handler)
+        if self._topics is None:
+            self._topics = self._load_topics()
        return self._topics

-    def _load_topics(
-        self, zip_file: zipfile.ZipFile, xml_handler: AbstractXmlParserSerializer
-    ) -> dict[str, TopicHandler]:
+    def _load_topics(self) -> dict[str, TopicHandler]:
        topics = {}
-        for topic_dir in zipfile.Path(zip_file).iterdir():
+        if self._zip_file is None:
+            return topics
+        for topic_dir in zipfile.Path(self._zip_file).iterdir():
            if not topic_dir.is_dir():
                continue
            markup_path = topic_dir.joinpath("markup.bcf")
            if not markup_path.exists():
                continue
-            topics[topic_dir.name] = TopicHandler(topic_dir, xml_handler)
+            topics[topic_dir.name] = TopicHandler(topic_dir, self._xml_handler)
        return topics

    @classmethod
@@ -0,0 +1,197 @@
+# NOTE: This file is not generated from
+# https://github.com/buildingSMART/BCF-XML/blob/release_2_1/Extension%20Schemas/extensions.xsd
+# because in bcf 2.1 there is no extensions.xml - I guess, the schema assumes that each .bcf
+# will use their own schema patched by it's own extensions.xsd.
+#
+# To make things simpler we just mimic extensions structures from bcf 3, so they'll have common API,
+# and parse extensions.xsd inside .bcf as .xml and fill our structures.
+#
+# Preferably if we could generate some kind of extensions.xml from extensions.xsd
+# and leave all the handling to xsdata.
+#
+# We also don't add it to __init__.py not to mess with generator.
+#
+# Currently extensions support for v2 is only read-only.
+
+
+from dataclasses import dataclass, field, fields
+from typing import List, NamedTuple, Optional
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsPriorities:
+    class Meta:
+        global_type = False
+
+    priority: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "Priority",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsSnippetTypes:
+    class Meta:
+        global_type = False
+
+    snippet_type: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "SnippetType",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsStages:
+    class Meta:
+        global_type = False
+
+    stage: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "Stage",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsTopicLabels:
+    class Meta:
+        global_type = False
+
+    topic_label: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "TopicLabel",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsTopicStatuses:
+    class Meta:
+        global_type = False
+
+    topic_status: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "TopicStatus",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsTopicTypes:
+    class Meta:
+        global_type = False
+
+    topic_type: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "TopicType",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class ExtensionsUsers:
+    class Meta:
+        global_type = False
+
+    user: List[str] = field(
+        default_factory=list,
+        metadata={
+            "name": "UserIdType",
+            "type": "Element",
+            "namespace": "",
+            "min_length": 1,
+            "white_space": "collapse",
+        },
+    )
+
+
+@dataclass(slots=True, kw_only=True)
+class Extensions:
+    topic_types: Optional[ExtensionsTopicTypes] = field(
+        default=None,
+        metadata={
+            "name": "TopicTypes",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
+    topic_statuses: Optional[ExtensionsTopicStatuses] = field(
+        default=None,
+        metadata={
+            "name": "TopicStatuses",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
+    priorities: Optional[ExtensionsPriorities] = field(
+        default=None,
+        metadata={
+            "name": "Priorities",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
+    topic_labels: Optional[ExtensionsTopicLabels] = field(
+        default=None,
+        metadata={
+            "name": "TopicLabels",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
+    users: Optional[ExtensionsUsers] = field(
+        default=None,
+        metadata={
+            "name": "Users",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
+    snippet_types: Optional[ExtensionsSnippetTypes] = field(
+        default=None,
+        metadata={
+            "name": "SnippetTypes",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
+    stages: Optional[ExtensionsStages] = field(
+        default=None,
+        metadata={
+            "name": "Stages",
+            "type": "Element",
+            "namespace": "",
+        },
+    )
@@ -34,7 +34,7 @@ class BimSnippet:
        metadata={
            "name": "isExternal",
            "type": "Attribute",
-        }
+        },
    )


@@ -64,7 +64,7 @@ class HeaderFile:
            "name": "Filename",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    date: Optional[XmlDateTime] = field(
        default=None,
@@ -72,7 +72,7 @@ class HeaderFile:
            "name": "Date",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    reference: Optional[str] = field(
        default=None,
@@ -80,7 +80,7 @@ class HeaderFile:
            "name": "Reference",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    ifc_project: Optional[str] = field(
        default=None,
@@ -89,7 +89,7 @@ class HeaderFile:
            "type": "Attribute",
            "length": 22,
            "pattern": r"[0-9,A-Z,a-z,_$]*",
-        }
+        },
    )
    ifc_spatial_structure_element: Optional[str] = field(
        default=None,
@@ -98,14 +98,14 @@ class HeaderFile:
            "type": "Attribute",
            "length": 22,
            "pattern": r"[0-9,A-Z,a-z,_$]*",
-        }
+        },
    )
    is_external: bool = field(
        default=True,
        metadata={
            "name": "isExternal",
            "type": "Attribute",
-        }
+        },
    )


@@ -120,7 +120,7 @@ class TopicDocumentReference:
            "name": "ReferencedDocument",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    description: Optional[str] = field(
        default=None,
@@ -128,7 +128,7 @@ class TopicDocumentReference:
            "name": "Description",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    guid: Optional[str] = field(
        default=None,
@@ -136,14 +136,14 @@ class TopicDocumentReference:
            "name": "Guid",
            "type": "Attribute",
            "pattern": r"[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}",
-        }
+        },
    )
    is_external: bool = field(
        default=False,
        metadata={
            "name": "isExternal",
            "type": "Attribute",
-        }
+        },
    )


@@ -170,7 +170,7 @@ class ViewPoint:
            "name": "Viewpoint",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    snapshot: Optional[str] = field(
        default=None,
@@ -178,7 +178,7 @@ class ViewPoint:
            "name": "Snapshot",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    index: Optional[int] = field(
        default=None,
@@ -186,7 +186,7 @@ class ViewPoint:
            "name": "Index",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -230,7 +230,7 @@ class Comment:
            "name": "Viewpoint",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    modified_date: Optional[XmlDateTime] = field(
        default=None,
@@ -238,7 +238,7 @@ class Comment:
            "name": "ModifiedDate",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    modified_author: Optional[str] = field(
        default=None,
@@ -246,7 +246,7 @@ class Comment:
            "name": "ModifiedAuthor",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -267,7 +267,7 @@ class Header:
            "type": "Element",
            "namespace": "",
            "min_occurs": 1,
-        }
+        },
    )


@@ -279,7 +279,7 @@ class Topic:
            "name": "ReferenceLink",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    title: str = field(
        metadata={
@@ -295,7 +295,7 @@ class Topic:
            "name": "Priority",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    index: Optional[int] = field(
        default=None,
@@ -303,7 +303,7 @@ class Topic:
            "name": "Index",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    labels: List[str] = field(
        default_factory=list,
@@ -311,7 +311,7 @@ class Topic:
            "name": "Labels",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    creation_date: XmlDateTime = field(
        metadata={
@@ -335,7 +335,7 @@ class Topic:
            "name": "ModifiedDate",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    modified_author: Optional[str] = field(
        default=None,
@@ -343,7 +343,7 @@ class Topic:
            "name": "ModifiedAuthor",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    due_date: Optional[XmlDateTime] = field(
        default=None,
@@ -351,7 +351,7 @@ class Topic:
            "name": "DueDate",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    assigned_to: Optional[str] = field(
        default=None,
@@ -359,7 +359,7 @@ class Topic:
            "name": "AssignedTo",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    stage: Optional[str] = field(
        default=None,
@@ -367,7 +367,7 @@ class Topic:
            "name": "Stage",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    description: Optional[str] = field(
        default=None,
@@ -375,7 +375,7 @@ class Topic:
            "name": "Description",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    bim_snippet: Optional[BimSnippet] = field(
        default=None,
@@ -383,7 +383,7 @@ class Topic:
            "name": "BimSnippet",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    document_reference: List[TopicDocumentReference] = field(
        default_factory=list,
@@ -391,7 +391,7 @@ class Topic:
            "name": "DocumentReference",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    related_topic: List[TopicRelatedTopic] = field(
        default_factory=list,
@@ -399,7 +399,7 @@ class Topic:
            "name": "RelatedTopic",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -414,14 +414,14 @@ class Topic:
        metadata={
            "name": "TopicType",
            "type": "Attribute",
-        }
+        },
    )
    topic_status: Optional[str] = field(
        default=None,
        metadata={
            "name": "TopicStatus",
            "type": "Attribute",
-        }
+        },
    )


@@ -433,7 +433,7 @@ class Markup:
            "name": "Header",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    topic: Topic = field(
        metadata={
@@ -449,7 +449,7 @@ class Markup:
            "name": "Comment",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    viewpoints: List[ViewPoint] = field(
        default_factory=list,
@@ -457,5 +457,5 @@ class Markup:
            "name": "Viewpoints",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
@@ -10,7 +10,7 @@ class Project:
            "name": "Name",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    project_id: str = field(
        metadata={
@@ -29,7 +29,7 @@ class ProjectExtension:
            "name": "Project",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    extension_schema: str = field(
        metadata={
@@ -10,12 +10,12 @@ class Version:
            "name": "DetailedVersion",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    version_id: Optional[str] = field(
        default=None,
        metadata={
            "name": "VersionId",
            "type": "Attribute",
-        }
+        },
    )
@@ -15,14 +15,14 @@ class Component:
        metadata={
            "name": "OriginatingSystem",
            "type": "Element",
-        }
+        },
    )
    authoring_tool_id: Optional[str] = field(
        default=None,
        metadata={
            "name": "AuthoringToolId",
            "type": "Element",
-        }
+        },
    )
    ifc_guid: Optional[str] = field(
        default=None,
@@ -31,7 +31,7 @@ class Component:
            "type": "Attribute",
            "length": 22,
            "pattern": r"[0-9,A-Z,a-z,_$]*",
-        }
+        },
    )


@@ -92,21 +92,21 @@ class ViewSetupHints:
        metadata={
            "name": "SpacesVisible",
            "type": "Attribute",
-        }
+        },
    )
    space_boundaries_visible: Optional[bool] = field(
        default=None,
        metadata={
            "name": "SpaceBoundariesVisible",
            "type": "Attribute",
-        }
+        },
    )
    openings_visible: Optional[bool] = field(
        default=None,
        metadata={
            "name": "OpeningsVisible",
            "type": "Attribute",
-        }
+        },
    )


@@ -139,7 +139,7 @@ class ComponentColoringColor:
            "name": "Component",
            "type": "Element",
            "min_occurs": 1,
-        }
+        },
    )
    color: Optional[str] = field(
        default=None,
@@ -147,7 +147,7 @@ class ComponentColoringColor:
            "name": "Color",
            "type": "Attribute",
            "pattern": r"[0-9,a-f,A-F]{6}([0-9,a-f,A-F]{2})?",
-        }
+        },
    )


@@ -159,7 +159,7 @@ class ComponentSelection:
            "name": "Component",
            "type": "Element",
            "min_occurs": 1,
-        }
+        },
    )


@@ -174,7 +174,7 @@ class ComponentVisibilityExceptions:
            "name": "Component",
            "type": "Element",
            "min_occurs": 1,
-        }
+        },
    )


@@ -205,6 +205,7 @@ class OrthogonalCamera:
        camera_up_vector:
        view_to_world_scale: view's visible size in meters
    """
+
    camera_view_point: Point = field(
        metadata={
            "name": "CameraViewPoint",
@@ -247,6 +248,7 @@ class PerspectiveCamera:
            release and viewers should be expect values outside this
            range in current implementations.
    """
+
    camera_view_point: Point = field(
        metadata={
            "name": "CameraViewPoint",
@@ -336,7 +338,7 @@ class ComponentColoring:
            "name": "Color",
            "type": "Element",
            "min_occurs": 1,
-        }
+        },
    )


@@ -347,14 +349,14 @@ class ComponentVisibility:
        metadata={
            "name": "Exceptions",
            "type": "Element",
-        }
+        },
    )
    default_visibility: Optional[bool] = field(
        default=None,
        metadata={
            "name": "DefaultVisibility",
            "type": "Attribute",
-        }
+        },
    )


@@ -368,7 +370,7 @@ class VisualizationInfoClippingPlanes:
        metadata={
            "name": "ClippingPlane",
            "type": "Element",
-        }
+        },
    )


@@ -383,7 +385,7 @@ class VisualizationInfoLines:
            "name": "Line",
            "type": "Element",
            "min_occurs": 1,
-        }
+        },
    )


@@ -394,14 +396,14 @@ class Components:
        metadata={
            "name": "ViewSetupHints",
            "type": "Element",
-        }
+        },
    )
    selection: Optional[ComponentSelection] = field(
        default=None,
        metadata={
            "name": "Selection",
            "type": "Element",
-        }
+        },
    )
    visibility: ComponentVisibility = field(
        metadata={
@@ -415,7 +417,7 @@ class Components:
        metadata={
            "name": "Coloring",
            "type": "Element",
-        }
+        },
    )


@@ -424,47 +426,48 @@ class VisualizationInfo:
    """
    VisualizationInfo documentation.
    """
+
    components: Optional[Components] = field(
        default=None,
        metadata={
            "name": "Components",
            "type": "Element",
-        }
+        },
    )
    orthogonal_camera: Optional[OrthogonalCamera] = field(
        default=None,
        metadata={
            "name": "OrthogonalCamera",
            "type": "Element",
-        }
+        },
    )
    perspective_camera: Optional[PerspectiveCamera] = field(
        default=None,
        metadata={
            "name": "PerspectiveCamera",
            "type": "Element",
-        }
+        },
    )
    lines: Optional[VisualizationInfoLines] = field(
        default=None,
        metadata={
            "name": "Lines",
            "type": "Element",
-        }
+        },
    )
    clipping_planes: Optional[VisualizationInfoClippingPlanes] = field(
        default=None,
        metadata={
            "name": "ClippingPlanes",
            "type": "Element",
-        }
+        },
    )
    bitmap: List[VisualizationInfoBitmap] = field(
        default_factory=list,
        metadata={
            "name": "Bitmap",
            "type": "Element",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -1,10 +1,11 @@
 """BCF XML V2 Topic handler."""
+
 import datetime
 import tempfile
 import uuid
 import zipfile
 from pathlib import Path
-from typing import Any, NoReturn, Optional
+from typing import Any, NoReturn, Optional, Union

 import numpy as np
 from ifcopenshell import entity_instance
@@ -26,9 +27,9 @@ class TopicHandler:
        xml_handler: Optional[AbstractXmlParserSerializer] = None,
    ) -> None:
        self._markup: Optional[mdl.Markup] = None
-        self._viewpoints: dict[str, VisualizationInfoHandler] = {}
-        self._reference_files: dict[str, bytes] = {}
-        self._document_references: dict[str, bytes] = {}
+        self._viewpoints: Optional[dict[str, VisualizationInfoHandler]] = None
+        self._reference_files: Optional[dict[str, bytes]] = None
+        self._document_references: Optional[dict[str, bytes]] = None
        self._bim_snippet: Optional[bytes] = None
        self._xml_handler = xml_handler or XmlParserSerializer()
        self._topic_dir = topic_dir
@@ -62,11 +63,21 @@ class TopicHandler:
        """Return the header of the topic."""
        return self.markup.header if self.markup else None

+    @header.setter
+    def header(self, header: mdl.Header) -> None:
+        """Set the header of the topic."""
+        self.markup.header = header
+
    @property
    def comments(self) -> list[mdl.Comment]:
        """Return the comments of the topic."""
        return self.markup.comment if self.markup else []

+    @comments.setter
+    def comments(self, comments: list[mdl.Comment]) -> None:
+        assert self.markup
+        self.markup.comment = comments
+
    @property
    def bim_snippet(self) -> Optional[bytes]:
        if not self._bim_snippet and self._topic_dir:
@@ -79,14 +90,24 @@ class TopicHandler:

    @property
    def viewpoints(self) -> dict[str, VisualizationInfoHandler]:
-        if not self._viewpoints and self._topic_dir:
+        if self._viewpoints is None:
            self._viewpoints = self._load_viewpoints()
        return self._viewpoints

+    def _load_viewpoints(self) -> dict[str, VisualizationInfoHandler]:
+        if self._topic_dir and self.markup and (viewpoints := self.markup.viewpoints):
+            return VisualizationInfoHandler.from_topic_viewpoints(self._topic_dir, viewpoints)
+        return {}
+
    @property
    def reference_files(self) -> dict[str, bytes]:
-        if self._reference_files or not self.header:
+        if self._reference_files is not None:
            return self._reference_files
+
+        self._reference_files = {}
+        if not self.header:
+            return self._reference_files
+
        for ref in self.header.file:
            if ref.is_external:
                continue
@@ -98,8 +119,13 @@ class TopicHandler:

    @property
    def document_references(self) -> dict[str, bytes]:
-        if self._document_references or not self.topic:
+        if self._document_references is not None:
            return self._document_references
+
+        self._document_references = {}
+        if not self.topic:
+            return self._document_references
+
        for doc in self.topic.document_reference:
            if doc.is_external or not doc.referenced_document:
                continue
@@ -117,11 +143,6 @@ class TopicHandler:
                return bim_snippet_path.read_bytes()
        return None

-    def _load_viewpoints(self) -> dict[str, VisualizationInfoHandler]:
-        if self.markup and (viewpoints := self.markup.viewpoints):
-            return VisualizationInfoHandler.from_topic_viewpoints(self._topic_dir, viewpoints)
-        return {}
-
    @classmethod
    def create_new(
        cls,
@@ -219,55 +240,7 @@ class TopicHandler:
                real_path = real_path.parent if path_part == ".." else real_path.joinpath(path_part)
            destination_zip.writestr(real_path.at, self.document_references[doc.referenced_document])

-    def extract_file(self, entity, outfile: Optional[Path] = None) -> Path:
-        """Extracts an element with a file into a temporary directory
-
-        These include header files, bim snippets, document references, and
-        viewpoint bitmaps. External reference are not downloaded. Instead, the
-        URI reference is returned.
-
-        :param entity: The entity with a file reference to extract
-        :type entity: bcf.v2.model.HeaderFile,bcf.v2.model.BimSnippet,bcf.v2.model.TopicDocumentReference
-        :param outfile: If provided, save the header file to that location.
-            Otherwise, a temporary directory is created and the filename is
-            derived from the header's original filename.
-        :type outfile: pathlib.Path,optional
-        :return: The filepath of the extracted file. It may be a URL if the
-            header file is external.
-        :rtype: Path
-        """
-        if hasattr(entity, "reference"):
-            reference = entity.reference
-        else:
-            reference = entity.referenced_document
-
-        if not reference:
-            return
-
-        if getattr(entity, "is_external", False):
-            return entity.reference
-
-        resolved_reference = self._topic_dir
-
-        for part in Path(reference).parts:
-            if part == "..":
-                resolved_reference = resolved_reference.parent
-            else:
-                resolved_reference = resolved_reference.joinpath(part)
-
-        if not outfile:
-            if getattr(entity, "filename", None):
-                filename = entity.filename
-            else:
-                filename = resolved_reference.name
-            outfile = Path(tempfile.mkdtemp()) / filename
-
-        with open(outfile, "wb") as f:
-            f.write(resolved_reference.read_bytes())
-
-        return outfile
-
-    def add_viewpoint(self, element: entity_instance) -> None:
+    def add_viewpoint(self, element: entity_instance) -> VisualizationInfoHandler:
        """Add a viewpoint pointed at the placement of an IFC element to the topic.

        Args:
@@ -277,7 +250,9 @@ class TopicHandler:
        self.add_visinfo_handler(new_viewpoint)
        return new_viewpoint

-    def add_viewpoint_from_point_and_guids(self, position: NDArray[np.float_], *guids: str) -> None:
+    def add_viewpoint_from_point_and_guids(
+        self, position: NDArray[np.float64], *guids: str
+    ) -> VisualizationInfoHandler:
        """Add a viewpoint pointing at an XYZ point in space

        Args:
@@ -290,9 +265,17 @@ class TopicHandler:
        self.add_visinfo_handler(vi_handler)
        return vi_handler

-    def add_visinfo_handler(self, new_viewpoint: VisualizationInfoHandler) -> None:
+    def add_visinfo_handler(
+        self, new_viewpoint: VisualizationInfoHandler, snapshot_filename: Optional[str] = None
+    ) -> mdl.ViewPoint:
        self.viewpoints[new_viewpoint.guid + ".bcfv"] = new_viewpoint
-        self.markup.viewpoints.append(mdl.ViewPoint(viewpoint=new_viewpoint.guid + ".bcfv", guid=new_viewpoint.guid))
+        viewpoint = mdl.ViewPoint(
+            viewpoint=new_viewpoint.guid + ".bcfv",
+            snapshot=snapshot_filename,
+            guid=new_viewpoint.guid,
+        )
+        self.markup.viewpoints.append(viewpoint)
+        return viewpoint

    def __eq__(self, other: object) -> bool | NoReturn:
        return (
@@ -1,7 +1,6 @@
 import uuid
 import zipfile
-from functools import lru_cache
-from typing import Any, Iterable, Optional
+from typing import Any, Iterable, Optional, Literal, Union

 import numpy as np
 from ifcopenshell import entity_instance
@@ -134,6 +133,15 @@ class VisualizationInfoHandler:
        self._save_bitmaps(bcf_zip, topic_dir)

    def _save_snapshot(self, bcf_zip: ZipFileInterface, topic_dir: str, filename: Optional[str]) -> None:
+        if bool(self.snapshot) ^ bool(filename):
+            data = ["data (VisualizationInfoHandler.snapshot)", "filename (ViewPoint.snapshot)"]
+            provided_data, missing_data = data if self.snapshot else data[::-1]
+            print(
+                f"WARNING. Snapshot with viewpoint guid '{self.guid}' won't be saved to bcf. "
+                f"Only snapshot {provided_data} is provided but snapshot {missing_data} is missing."
+            )
+            return
+
        if self.snapshot and filename:
            bcf_zip.writestr(f"{topic_dir}/{filename}", self.snapshot)

@@ -176,7 +184,7 @@ class VisualizationInfoHandler:
    @classmethod
    def create_from_point_and_guids(
        cls,
-        position: NDArray[np.float_],
+        position: NDArray[np.float64],
        *guids: str,
        xml_handler: Optional[AbstractXmlParserSerializer] = None,
    ) -> "VisualizationInfoHandler":
@@ -196,13 +204,110 @@ class VisualizationInfoHandler:
            visualization_info=build_viewpoint_from_position_and_guids(position, *guids), xml_handler=xml_handler
        )

+    def get_selected_guids(self) -> Union[list[str], None]:
+        """
+        Return viewpoint selected elements IFC guids.
+
+        Returns:
+            If viewpoint has no selection settings, return `None`.
+            Otherwise return a list of selected elements IFC guids.
+        """
+        visualization_info = self.visualization_info
+        components = visualization_info.components
+        if not components:
+            return None
+
+        selection = components.selection
+        if not selection:
+            return None
+        return [guid for c in selection.component if (guid := c.ifc_guid)]
+
+    def set_selected_elements(self, elements: list[ifcopenshell.entity_instance]) -> None:
+        visualization_info = self.visualization_info
+
+        guids = [e.GlobalId for e in elements]
+        components = visualization_info.components
+        if not components:
+            visibility = mdl.ComponentVisibility(default_visibility=True)
+            components = mdl.Components(visibility=visibility)
+            visualization_info.components = components
+
+        selection = components.selection
+        components_list = [mdl.Component(ifc_guid=guid) for guid in guids]
+        if not selection:
+            selection = mdl.ComponentSelection()
+            components.selection = selection
+        selection.component = components_list
+
+    def set_visible_elements(self, elements: list[ifcopenshell.entity_instance]) -> None:
+        self.set_visibility(elements, elements_visibility="VISIBLE")
+
+    def set_hidden_elements(self, elements: list[ifcopenshell.entity_instance]) -> None:
+        self.set_visibility(elements, elements_visibility="HIDDEN")
+
+    def set_visibility(
+        self, elements: list[ifcopenshell.entity_instance], elements_visibility: Literal["VISIBLE", "HIDDEN"]
+    ) -> None:
+        visualization_info = self.visualization_info
+        default_visibility = elements_visibility == "HIDDEN"
+
+        guids = [e.GlobalId for e in elements]
+        components_list = [mdl.Component(ifc_guid=guid) for guid in guids]
+        components = visualization_info.components
+        if not components:
+            visibility = mdl.ComponentVisibility(default_visibility=default_visibility)
+            components = mdl.Components(visibility=visibility)
+            visualization_info.components = components
+
+        visibility = components.visibility
+        if not visibility:
+            visibility = mdl.ComponentVisibility(default_visibility=default_visibility)
+            components.visibility = visibility
+        elif visibility.default_visibility != default_visibility:
+            visibility.default_visibility = default_visibility
+
+        exceptions = visibility.exceptions
+        if not exceptions:
+            exceptions = mdl.ComponentVisibilityExceptions()
+            visibility.exceptions = exceptions
+        exceptions.component = components_list
+
+    def get_elements_visibility(self) -> Union[tuple[bool, list[str]], None]:
+        """
+        Return viewpoint elements visibility settings.
+
+        Returns:
+            If viewpoint has no visibility settings, return `None`.
+            Otherwise return a tuple containing the default visibility
+            and a list of IFC element GUIDs listed as exceptions.
+
+            If default visibility is `True`, all elements are visible except the exceptions.
+
+            If default visibility is `False`, all elements are hidden except the exceptions.
+        """
+
+        visualization_info = self.visualization_info
+        components = visualization_info.components
+        if not components:
+            return None
+
+        visibility = components.visibility
+        if not visibility:
+            return None
+        default_visibility = visibility.default_visibility or False
+
+        exceptions = visibility.exceptions
+        if not exceptions:
+            return default_visibility, []
+        guids = [guid for c in exceptions.component if (guid := c.ifc_guid)]
+        return default_visibility, guids
+

-@lru_cache(maxsize=None)
 def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
    """
    Return a BCF viewpoint of an IFC element.

-    This function is cached to speedudp the creation of multiple BCF topics regarding the same element.
+    This function is cached to speed up the creation of multiple BCF topics regarding the same element.

    Args:
        element: The IFC element to point at.
@@ -224,11 +329,11 @@ def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
    )


-def build_viewpoint_from_position_and_guids(position: NDArray[np.float_], *guids: str) -> mdl.VisualizationInfo:
+def build_viewpoint_from_position_and_guids(position: NDArray[np.float64], *guids: str) -> mdl.VisualizationInfo:
    """
    Return a BCF viewpoint of an IFC element.

-    This function is cached to speedudp the creation of multiple BCF topics regarding the same element.
+    This function is cached to speed up the creation of multiple BCF topics regarding the same element.

    Args:
        position: target point coordinates.
@@ -249,7 +354,7 @@ def build_components(*guids: str) -> mdl.Components:
    Return the BCF components from an IFC element GUID.

    Args:
-        *guids: One or more IFC element GUID.
+        *guids: One or more selected IFC element GUID.

    Returns:
        The BCF components definition.
@@ -261,7 +366,7 @@ def build_components(*guids: str) -> mdl.Components:
    )


-def build_camera(elem_placement: NDArray[np.float_]) -> mdl.PerspectiveCamera:
+def build_camera(elem_placement: NDArray[np.float64]) -> mdl.PerspectiveCamera:
    """
    Return a BCF camera for an IFC element placement matrix.

@@ -275,7 +380,7 @@ def build_camera(elem_placement: NDArray[np.float_]) -> mdl.PerspectiveCamera:


 def build_camera_from_vectors(
-    camera_position: NDArray[np.float_], camera_dir: NDArray[np.float_], camera_up: NDArray[np.float_]
+    camera_position: NDArray[np.float64], camera_dir: NDArray[np.float64], camera_up: NDArray[np.float64]
 ) -> mdl.PerspectiveCamera:
    """
    Return a BCF camera for an IFC element placement matrix.
@@ -1,4 +1,5 @@
 """BCF XML V3 handlers."""
+
 import uuid
 import warnings
 import zipfile
@@ -25,7 +26,7 @@ class BcfXml:
        self._version: Optional[mdl.Version] = None
        self._project_info: Optional[mdl.ProjectInfo] = None
        self._extensions: Optional[mdl.Extensions] = None
-        self._topics: dict[str, TopicHandler] = {}
+        self._topics: Optional[dict[str, TopicHandler]] = None
        self._documents: Optional[DocumentsHandler] = None
        self._zip_file = self._load_zip_file()

@@ -90,18 +91,22 @@ class BcfXml:
    @property
    def topics(self) -> dict[str, TopicHandler]:
        """BCF topics."""
-        if not self._topics and self._zip_file:
-            self._load_topics()
+        if self._topics is None:
+            self._topics = self._load_topics()
        return self._topics

-    def _load_topics(self) -> None:
+    def _load_topics(self) -> dict[str, TopicHandler]:
+        topics = {}
+        if self._zip_file is None:
+            return topics
        for topic_dir in zipfile.Path(self._zip_file).iterdir():
            if not topic_dir.is_dir():
                continue
            markup_path = topic_dir.joinpath("markup.bcf")
            if not markup_path.exists():
                continue
-            self._topics[topic_dir.name] = TopicHandler(topic_dir, self._xml_handler)
+            topics[topic_dir.name] = TopicHandler(topic_dir, self._xml_handler)
+        return topics

    @property
    def documents(self) -> Optional[DocumentsHandler]:
@@ -1,4 +1,5 @@
 """BCF XML V3 Documents handler."""
+
 import zipfile
 from typing import Any, Optional

@@ -22,7 +22,7 @@ class Document:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -45,7 +45,7 @@ class DocumentInfoDocuments:
            "name": "Document",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -57,5 +57,5 @@ class DocumentInfo:
            "name": "Documents",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
@@ -15,7 +15,7 @@ class ExtensionsPriorities:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -32,7 +32,7 @@ class ExtensionsSnippetTypes:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -49,7 +49,7 @@ class ExtensionsStages:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -66,7 +66,7 @@ class ExtensionsTopicLabels:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -83,7 +83,7 @@ class ExtensionsTopicStatuses:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -100,7 +100,7 @@ class ExtensionsTopicTypes:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -117,7 +117,7 @@ class ExtensionsUsers:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -129,7 +129,7 @@ class Extensions:
            "name": "TopicTypes",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    topic_statuses: Optional[ExtensionsTopicStatuses] = field(
        default=None,
@@ -137,7 +137,7 @@ class Extensions:
            "name": "TopicStatuses",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    priorities: Optional[ExtensionsPriorities] = field(
        default=None,
@@ -145,7 +145,7 @@ class Extensions:
            "name": "Priorities",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    topic_labels: Optional[ExtensionsTopicLabels] = field(
        default=None,
@@ -153,7 +153,7 @@ class Extensions:
            "name": "TopicLabels",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    users: Optional[ExtensionsUsers] = field(
        default=None,
@@ -161,7 +161,7 @@ class Extensions:
            "name": "Users",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    snippet_types: Optional[ExtensionsSnippetTypes] = field(
        default=None,
@@ -169,7 +169,7 @@ class Extensions:
            "name": "SnippetTypes",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    stages: Optional[ExtensionsStages] = field(
        default=None,
@@ -177,5 +177,5 @@ class Extensions:
            "name": "Stages",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
@@ -40,7 +40,7 @@ class BimSnippet:
        metadata={
            "name": "IsExternal",
            "type": "Attribute",
-        }
+        },
    )


@@ -68,7 +68,7 @@ class DocumentReference:
            "type": "Element",
            "namespace": "",
            "pattern": r"[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}",
-        }
+        },
    )
    url: Optional[str] = field(
        default=None,
@@ -78,7 +78,7 @@ class DocumentReference:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    description: Optional[str] = field(
        default=None,
@@ -88,7 +88,7 @@ class DocumentReference:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -110,7 +110,7 @@ class File:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    date: Optional[XmlDateTime] = field(
        default=None,
@@ -118,7 +118,7 @@ class File:
            "name": "Date",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    reference: Optional[str] = field(
        default=None,
@@ -128,7 +128,7 @@ class File:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    ifc_project: Optional[str] = field(
        default=None,
@@ -137,7 +137,7 @@ class File:
            "type": "Attribute",
            "length": 22,
            "pattern": r"[0-9A-Za-z_$]*",
-        }
+        },
    )
    ifc_spatial_structure_element: Optional[str] = field(
        default=None,
@@ -146,14 +146,14 @@ class File:
            "type": "Attribute",
            "length": 22,
            "pattern": r"[0-9A-Za-z_$]*",
-        }
+        },
    )
    is_external: bool = field(
        default=True,
        metadata={
            "name": "IsExternal",
            "type": "Attribute",
-        }
+        },
    )


@@ -170,7 +170,7 @@ class TopicLabels:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -187,7 +187,7 @@ class TopicReferenceLinks:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )


@@ -216,7 +216,7 @@ class ViewPoint:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    snapshot: Optional[str] = field(
        default=None,
@@ -226,7 +226,7 @@ class ViewPoint:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    index: Optional[int] = field(
        default=None,
@@ -234,7 +234,7 @@ class ViewPoint:
            "name": "Index",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -274,7 +274,7 @@ class Comment:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    viewpoint: Optional[CommentViewpoint] = field(
        default=None,
@@ -282,7 +282,7 @@ class Comment:
            "name": "Viewpoint",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    modified_date: Optional[XmlDateTime] = field(
        default=None,
@@ -290,7 +290,7 @@ class Comment:
            "name": "ModifiedDate",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    modified_author: Optional[str] = field(
        default=None,
@@ -300,7 +300,7 @@ class Comment:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -323,7 +323,7 @@ class HeaderFiles:
            "name": "File",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -338,7 +338,7 @@ class TopicDocumentReferences:
            "name": "DocumentReference",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -353,7 +353,7 @@ class TopicRelatedTopics:
            "name": "RelatedTopic",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -368,7 +368,7 @@ class TopicViewpoints:
            "name": "ViewPoint",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -380,7 +380,7 @@ class Header:
            "name": "Files",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -395,7 +395,7 @@ class TopicComments:
            "name": "Comment",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )


@@ -407,7 +407,7 @@ class Topic:
            "name": "ReferenceLinks",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    title: str = field(
        metadata={
@@ -427,7 +427,7 @@ class Topic:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    index: Optional[int] = field(
        default=None,
@@ -435,7 +435,7 @@ class Topic:
            "name": "Index",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    labels: Optional[TopicLabels] = field(
        default=None,
@@ -443,7 +443,7 @@ class Topic:
            "name": "Labels",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    creation_date: XmlDateTime = field(
        metadata={
@@ -469,7 +469,7 @@ class Topic:
            "name": "ModifiedDate",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    modified_author: Optional[str] = field(
        default=None,
@@ -479,7 +479,7 @@ class Topic:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    due_date: Optional[XmlDateTime] = field(
        default=None,
@@ -487,7 +487,7 @@ class Topic:
            "name": "DueDate",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    assigned_to: Optional[str] = field(
        default=None,
@@ -497,7 +497,7 @@ class Topic:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    stage: Optional[str] = field(
        default=None,
@@ -507,7 +507,7 @@ class Topic:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    description: Optional[str] = field(
        default=None,
@@ -517,7 +517,7 @@ class Topic:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    bim_snippet: Optional[BimSnippet] = field(
        default=None,
@@ -525,7 +525,7 @@ class Topic:
            "name": "BimSnippet",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    document_references: Optional[TopicDocumentReferences] = field(
        default=None,
@@ -533,7 +533,7 @@ class Topic:
            "name": "DocumentReferences",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    related_topics: Optional[TopicRelatedTopics] = field(
        default=None,
@@ -541,7 +541,7 @@ class Topic:
            "name": "RelatedTopics",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    comments: Optional[TopicComments] = field(
        default=None,
@@ -549,7 +549,7 @@ class Topic:
            "name": "Comments",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    viewpoints: Optional[TopicViewpoints] = field(
        default=None,
@@ -557,7 +557,7 @@ class Topic:
            "name": "Viewpoints",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -574,7 +574,7 @@ class Topic:
            "type": "Attribute",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    topic_type: str = field(
        metadata={
@@ -604,7 +604,7 @@ class Markup:
            "name": "Header",
            "type": "Element",
            "namespace": "",
-        }
+        },
    )
    topic: Topic = field(
        metadata={
@@ -12,7 +12,7 @@ class Project:
            "namespace": "",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    project_id: str = field(
        metadata={
@@ -17,7 +17,7 @@ class Component:
            "type": "Element",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    authoring_tool_id: Optional[str] = field(
        default=None,
@@ -26,7 +26,7 @@ class Component:
            "type": "Element",
            "min_length": 1,
            "white_space": "collapse",
-        }
+        },
    )
    ifc_guid: Optional[str] = field(
        default=None,
@@ -35,7 +35,7 @@ class Component:
            "type": "Attribute",
            "length": 22,
            "pattern": r"[0-9A-Za-z_$]*",
-        }
+        },
    )


@@ -96,21 +96,21 @@ class ViewSetupHints:
        metadata={
            "name": "SpacesVisible",
            "type": "Attribute",
-        }
+        },
    )
    space_boundaries_visible: bool = field(
        default=False,
        metadata={
            "name": "SpaceBoundariesVisible",
            "type": "Attribute",
-        }
+        },
    )
    openings_visible: bool = field(
        default=False,
        metadata={
            "name": "OpeningsVisible",
            "type": "Attribute",
-        }
+        },
    )


@@ -191,7 +191,7 @@ class ComponentColoringColorComponents:
            "name": "Component",
            "type": "Element",
            "min_occurs": 1,
-        }
+        },
    )


@@ -202,7 +202,7 @@ class ComponentSelection:
        metadata={
            "name": "Component",
            "type": "Element",
-        }
+        },
    )


@@ -216,7 +216,7 @@ class ComponentVisibilityExceptions:
        metadata={
            "name": "Component",
            "type": "Element",
-        }
+        },
    )


@@ -249,6 +249,7 @@ class OrthogonalCamera:
        aspect_ratio: Proportional relationship between the width and
            the height of the view (w/h).
    """
+
    camera_view_point: Point = field(
        metadata={
            "name": "CameraViewPoint",
@@ -302,6 +303,7 @@ class PerspectiveCamera:
        aspect_ratio: Proportional relationship between the width and
            the height of the view (w/h).
    """
+
    camera_view_point: Point = field(
        metadata={
            "name": "CameraViewPoint",
@@ -371,21 +373,21 @@ class ComponentVisibility:
        metadata={
            "name": "ViewSetupHints",
            "type": "Element",
-        }
+        },
    )
    exceptions: Optional[ComponentVisibilityExceptions] = field(
        default=None,
        metadata={
            "name": "Exceptions",
            "type": "Element",
-        }
+        },
    )
    default_visibility: bool = field(
        default=False,
        metadata={
            "name": "DefaultVisibility",
            "type": "Attribute",
-        }
+        },
    )


@@ -399,7 +401,7 @@ class VisualizationInfoBitmaps:
        metadata={
            "name": "Bitmap",
            "type": "Element",
-        }
+        },
    )


@@ -413,7 +415,7 @@ class VisualizationInfoClippingPlanes:
        metadata={
            "name": "ClippingPlane",
            "type": "Element",
-        }
+        },
    )


@@ -427,7 +429,7 @@ class VisualizationInfoLines:
        metadata={
            "name": "Line",
            "type": "Element",
-        }
+        },
    )


@@ -438,7 +440,7 @@ class ComponentColoring:
        metadata={
            "name": "Color",
            "type": "Element",
-        }
+        },
    )


@@ -449,21 +451,21 @@ class Components:
        metadata={
            "name": "Selection",
            "type": "Element",
-        }
+        },
    )
    visibility: Optional[ComponentVisibility] = field(
        default=None,
        metadata={
            "name": "Visibility",
            "type": "Element",
-        }
+        },
    )
    coloring: Optional[ComponentColoring] = field(
        default=None,
        metadata={
            "name": "Coloring",
            "type": "Element",
-        }
+        },
    )


@@ -472,47 +474,48 @@ class VisualizationInfo:
    """
    VisualizationInfo documentation.
    """
+
    components: Optional[Components] = field(
        default=None,
        metadata={
            "name": "Components",
            "type": "Element",
-        }
+        },
    )
    orthogonal_camera: Optional[OrthogonalCamera] = field(
        default=None,
        metadata={
            "name": "OrthogonalCamera",
            "type": "Element",
-        }
+        },
    )
    perspective_camera: Optional[PerspectiveCamera] = field(
        default=None,
        metadata={
            "name": "PerspectiveCamera",
            "type": "Element",
-        }
+        },
    )
    lines: Optional[VisualizationInfoLines] = field(
        default=None,
        metadata={
            "name": "Lines",
            "type": "Element",
-        }
+        },
    )
    clipping_planes: Optional[VisualizationInfoClippingPlanes] = field(
        default=None,
        metadata={
            "name": "ClippingPlanes",
            "type": "Element",
-        }
+        },
    )
    bitmaps: Optional[VisualizationInfoBitmaps] = field(
        default=None,
        metadata={
            "name": "Bitmaps",
            "type": "Element",
-        }
+        },
    )
    guid: str = field(
        metadata={
@@ -1,4 +1,5 @@
 """BCF XML V3 Topic handler."""
+
 import datetime
 import uuid
 import zipfile
@@ -25,7 +26,8 @@ class TopicHandler:
        xml_handler: Optional[AbstractXmlParserSerializer] = None,
    ) -> None:
        self._markup: Optional[mdl.Markup] = None
-        self._viewpoints: dict[str, VisualizationInfoHandler] = {}
+        self._viewpoints: Optional[dict[str, VisualizationInfoHandler]] = None
+        self._reference_files: Optional[dict[str, bytes]] = None
        self._bim_snippet: Optional[bytes] = None
        self._xml_handler = xml_handler or XmlParserSerializer()
        self._topic_dir = topic_dir
@@ -48,22 +50,36 @@ class TopicHandler:
        return self.markup.topic

    @property
-    def guid(self) -> Optional[str]:
+    def guid(self) -> str:
        """Return the GUID of the topic."""
        if self._markup:
            return self.topic.guid
-        return self._topic_dir.name if self._topic_dir else None
+        return self._topic_dir.name if self._topic_dir else ""

    @property
    def header(self) -> Optional[mdl.Header]:
        """Return the header of the topic."""
        return self.markup.header

+    @header.setter
+    def header(self, header: mdl.Header) -> None:
+        """Set the header of the topic."""
+        self.markup.header = header
+
    @property
    def comments(self) -> list[mdl.Comment]:
        """Return the comments of the topic."""
        return self.topic.comments.comment if self.topic.comments else []

+    @comments.setter
+    def comments(self, comments: list[mdl.Comment]) -> None:
+        topic_comments = self.topic.comments
+        if topic_comments is None:
+            if not comments:
+                return
+            self.topic.comments = (topic_comments := mdl.TopicComments())
+        topic_comments.comment = comments
+
    @property
    def bim_snippet(self) -> Optional[bytes]:
        if not self._bim_snippet and self._topic_dir:
@@ -76,15 +92,15 @@ class TopicHandler:

    @property
    def viewpoints(self) -> dict[str, "VisualizationInfoHandler"]:
-        if (
-            not self._viewpoints
-            and self._topic_dir
-            and self.topic.viewpoints
-            and (viewpoints := self.topic.viewpoints.view_point)
-        ):
-            self._viewpoints = VisualizationInfoHandler.from_topic_viewpoints(self._topic_dir, viewpoints)
+        if self._viewpoints is None:
+            self._viewpoints = self._load_viewpoints()
        return self._viewpoints

+    def _load_viewpoints(self) -> dict[str, "VisualizationInfoHandler"]:
+        if self._topic_dir and self.topic.viewpoints and (viewpoints := self.topic.viewpoints.view_point):
+            return VisualizationInfoHandler.from_topic_viewpoints(self._topic_dir, viewpoints)
+        return {}
+
    def _load_bim_snippet(self) -> Optional[bytes]:
        bim_snippet_obj = self.topic.bim_snippet
        if bim_snippet_obj and not bim_snippet_obj.is_external and self._topic_dir:
@@ -93,6 +109,27 @@ class TopicHandler:
                return bim_snippet_path.read_bytes()
        return None

+    @property
+    def reference_files(self) -> dict[str, bytes]:
+        if self._reference_files is not None:
+            return self._reference_files
+
+        self._reference_files = {}
+        if not self.header:
+            return self._reference_files
+
+        if not self.header.files:
+            return self._reference_files
+
+        for ref in self.header.files.file:
+            if ref.is_external:
+                continue
+            real_path = self._topic_dir
+            for path_part in ref.reference.split("/"):
+                real_path = real_path.parent if path_part == ".." else real_path.joinpath(path_part)
+            self._reference_files[ref.reference] = real_path.read_bytes()
+        return self._reference_files
+
    @classmethod
    def create_new(
        cls,
@@ -144,6 +181,7 @@ class TopicHandler:
        self._save_xml(destination_zip, self._markup, "markup.bcf")
        self._save_viewpoints(destination_zip, topic_dir)
        self._save_bim_snippet(destination_zip)
+        self._save_reference_files(destination_zip)

    def _save_viewpoints(self, destination_zip: ZipFileInterface, topic_dir: str) -> None:
        if not self.topic.viewpoints or not (viewpoints := self.topic.viewpoints.view_point):
@@ -164,7 +202,20 @@ class TopicHandler:
        if self.bim_snippet:
            destination_zip.writestr(f"{self.topic.guid}/{ref_filename}", self.bim_snippet)

-    def add_viewpoint(self, element: entity_instance) -> None:
+    def _save_reference_files(self, destination_zip: ZipFileInterface) -> None:
+        if not self.header:
+            return
+        if not self.header.files:
+            return
+        for ref in self.header.files.file:
+            if ref.is_external or not ref.reference:
+                continue
+            real_path = self._topic_dir
+            for path_part in ref.reference.split("/"):
+                real_path = real_path.parent if path_part == ".." else real_path.joinpath(path_part)
+            destination_zip.writestr(real_path.at, self.reference_files[ref.reference])
+
+    def add_viewpoint(self, element: entity_instance) -> VisualizationInfoHandler:
        """
        Add a viewpoint tergeting an IFC element to the topic.

@@ -173,8 +224,11 @@ class TopicHandler:
        """
        new_viewpoint = VisualizationInfoHandler.create_new(element, self._xml_handler)
        self.add_visinfo_handler(new_viewpoint)
+        return new_viewpoint

-    def add_viewpoint_from_point_and_guids(self, position: NDArray[np.float_], *guids: str) -> None:
+    def add_viewpoint_from_point_and_guids(
+        self, position: NDArray[np.float64], *guids: str
+    ) -> VisualizationInfoHandler:
        """
        Add a viewpoint tergeting an IFC element to the topic.

@@ -185,14 +239,21 @@ class TopicHandler:
            position, *guids, xml_handler=self._xml_handler
        )
        self.add_visinfo_handler(vi_handler)
+        return vi_handler

-    def add_visinfo_handler(self, new_viewpoint: VisualizationInfoHandler) -> None:
+    def add_visinfo_handler(
+        self, new_viewpoint: VisualizationInfoHandler, snapshot_filename: Optional[str] = None
+    ) -> mdl.ViewPoint:
        self.viewpoints[new_viewpoint.guid + ".bcfv"] = new_viewpoint
        if self.topic.viewpoints is None:
            self.topic.viewpoints = mdl.TopicViewpoints()
-        self.topic.viewpoints.view_point.append(
-            mdl.ViewPoint(viewpoint=new_viewpoint.guid + ".bcfv", guid=new_viewpoint.guid)
+        viewpoint = mdl.ViewPoint(
+            viewpoint=new_viewpoint.guid + ".bcfv",
+            snapshot=snapshot_filename,
+            guid=new_viewpoint.guid,
        )
+        self.topic.viewpoints.view_point.append(viewpoint)
+        return viewpoint

    def __eq__(self, other: object) -> bool | NoReturn:
        return (
@@ -1,11 +1,11 @@
 import uuid
 import zipfile
-from functools import lru_cache
-from typing import Any, Iterable, Optional
+from typing import Any, Iterable, Optional, Literal, Union

 import numpy as np
 from ifcopenshell import entity_instance
-from ifcopenshell.util import placement
+import ifcopenshell.util.unit
+import ifcopenshell.util.placement
 from numpy.typing import NDArray

 import bcf.v3.model as mdl
@@ -133,6 +133,15 @@ class VisualizationInfoHandler:
        self._save_bitmaps(bcf_zip, topic_dir)

    def _save_snapshot(self, bcf_zip: ZipFileInterface, topic_dir: str, filename: Optional[str]) -> None:
+        if bool(self.snapshot) ^ bool(filename):
+            data = ["data (VisualizationInfoHandler.snapshot)", "filename (ViewPoint.snapshot)"]
+            provided_data, missing_data = data if self.snapshot else data[::-1]
+            print(
+                f"WARNING. Snapshot with viewpoint guid '{self.guid}' won't be saved to bcf. "
+                f"Only snapshot {provided_data} is provided but snapshot {missing_data} is missing."
+            )
+            return
+
        if self.snapshot and filename:
            bcf_zip.writestr(f"{topic_dir}/{filename}", self.snapshot)

@@ -175,7 +184,7 @@ class VisualizationInfoHandler:
    @classmethod
    def create_from_point_and_guids(
        cls,
-        position: NDArray[np.float_],
+        position: NDArray[np.float64],
        *guids: str,
        xml_handler: Optional[AbstractXmlParserSerializer] = None,
    ) -> "VisualizationInfoHandler":
@@ -195,13 +204,110 @@ class VisualizationInfoHandler:
            visualization_info=build_viewpoint_from_position_and_guids(position, *guids), xml_handler=xml_handler
        )

+    def get_selected_guids(self) -> Union[list[str], None]:
+        """
+        Return viewpoint selected elements IFC guids.
+
+        Returns:
+            If viewpoint has no selection settings, return `None`.
+            Otherwise return a list of selected elements IFC guids.
+        """
+        visualization_info = self.visualization_info
+        components = visualization_info.components
+        if not components:
+            return None
+
+        selection = components.selection
+        if not selection:
+            return None
+        return [guid for c in selection.component if (guid := c.ifc_guid)]
+
+    def set_selected_elements(self, elements: list[ifcopenshell.entity_instance]) -> None:
+        visualization_info = self.visualization_info
+
+        guids = [e.GlobalId for e in elements]
+        components = visualization_info.components
+        if not components:
+            visibility = mdl.ComponentVisibility(default_visibility=True)
+            components = mdl.Components(visibility=visibility)
+            visualization_info.components = components
+
+        selection = components.selection
+        components_list = [mdl.Component(ifc_guid=guid) for guid in guids]
+        if not selection:
+            selection = mdl.ComponentSelection()
+            components.selection = selection
+        selection.component = components_list
+
+    def set_visible_elements(self, elements: list[ifcopenshell.entity_instance]) -> None:
+        self.set_visibility(elements, elements_visibility="VISIBLE")
+
+    def set_hidden_elements(self, elements: list[ifcopenshell.entity_instance]) -> None:
+        self.set_visibility(elements, elements_visibility="HIDDEN")
+
+    def set_visibility(
+        self, elements: list[ifcopenshell.entity_instance], elements_visibility: Literal["VISIBLE", "HIDDEN"]
+    ) -> None:
+        visualization_info = self.visualization_info
+        default_visibility = elements_visibility == "HIDDEN"
+
+        guids = [e.GlobalId for e in elements]
+        components_list = [mdl.Component(ifc_guid=guid) for guid in guids]
+        components = visualization_info.components
+        if not components:
+            visibility = mdl.ComponentVisibility(default_visibility=default_visibility)
+            components = mdl.Components(visibility=visibility)
+            visualization_info.components = components
+
+        visibility = components.visibility
+        if not visibility:
+            visibility = mdl.ComponentVisibility(default_visibility=default_visibility)
+            components.visibility = visibility
+        elif visibility.default_visibility != default_visibility:
+            visibility.default_visibility = default_visibility
+
+        exceptions = visibility.exceptions
+        if not exceptions:
+            exceptions = mdl.ComponentVisibilityExceptions()
+            visibility.exceptions = exceptions
+        exceptions.component = components_list
+
+    def get_elements_visibility(self) -> Union[tuple[bool, list[str]], None]:
+        """
+        Return viewpoint elements visibility settings.
+
+        Returns:
+            If viewpoint has no visibility settings, return `None`.
+            Otherwise return a tuple containing the default visibility
+            and a list of IFC element GUIDs listed as exceptions.
+
+            If default visibility is `True`, all elements are visible except the exceptions.
+
+            If default visibility is `False`, all elements are hidden except the exceptions.
+        """
+
+        visualization_info = self.visualization_info
+        components = visualization_info.components
+        if not components:
+            return None
+
+        visibility = components.visibility
+        if not visibility:
+            return None
+        default_visibility = visibility.default_visibility or False
+
+        exceptions = visibility.exceptions
+        if not exceptions:
+            return default_visibility, []
+        guids = [guid for c in exceptions.component if (guid := c.ifc_guid)]
+        return default_visibility, guids
+

-@lru_cache(maxsize=None)
 def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
    """
    Return a BCF viewpoint of an IFC element.

-    This function is cached to speedudp the creation of multiple BCF topics regarding the same element.
+    This function is cached to speed up the creation of multiple BCF topics regarding the same element.

    Args:
        element: The IFC element to point at.
@@ -209,7 +315,12 @@ def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
    Returns:
        The BCF viewpoint definition.
    """
-    elem_placement = placement.get_local_placement(element.ObjectPlacement)
+    ifc_file = element.wrapped_data.file
+    unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
+    elem_placement = ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement)
+    elem_placement[0][3] *= unit_scale
+    elem_placement[1][3] *= unit_scale
+    elem_placement[2][3] *= unit_scale

    return mdl.VisualizationInfo(
        guid=str(uuid.uuid4()),
@@ -218,11 +329,11 @@ def build_viewpoint(element: entity_instance) -> mdl.VisualizationInfo:
    )


-def build_viewpoint_from_position_and_guids(position: NDArray[np.float_], *guids: str) -> mdl.VisualizationInfo:
+def build_viewpoint_from_position_and_guids(position: NDArray[np.float64], *guids: str) -> mdl.VisualizationInfo:
    """
    Return a BCF viewpoint of an IFC element.

-    This function is cached to speedudp the creation of multiple BCF topics regarding the same element.
+    This function is cached to speed up the creation of multiple BCF topics regarding the same element.

    Args:
        position: target point coordinates.
@@ -243,7 +354,7 @@ def build_components(*guids: str) -> mdl.Components:
    Return the BCF components from an IFC element GUID.

    Args:
-        *guids: One or more IFC element GUID.
+        *guids: One or more selected IFC element GUID.

    Returns:
        The BCF components definition.
@@ -255,7 +366,7 @@ def build_components(*guids: str) -> mdl.Components:
    )


-def build_camera(elem_placement: NDArray[np.float_]) -> mdl.PerspectiveCamera:
+def build_camera(elem_placement: NDArray[np.float64]) -> mdl.PerspectiveCamera:
    """
    Return a BCF camera for an IFC element placement matrix.

@@ -269,7 +380,7 @@ def build_camera(elem_placement: NDArray[np.float_]) -> mdl.PerspectiveCamera:


 def build_camera_from_vectors(
-    camera_position: NDArray[np.float_], camera_dir: NDArray[np.float_], camera_up: NDArray[np.float_]
+    camera_position: NDArray[np.float64], camera_dir: NDArray[np.float64], camera_up: NDArray[np.float64]
 ) -> mdl.PerspectiveCamera:
    """
    Return a BCF camera for an IFC element placement matrix.
@@ -1,4 +1,5 @@
 """XML Parser and Serializer factories."""
+
 from typing import Optional, Protocol, Type, TypeVar

 from xsdata.formats.dataclass.context import XmlContext
@@ -1,4 +1,5 @@
 """BCF XML tests."""
+
 import uuid
 from pathlib import Path
 from tempfile import TemporaryDirectory
@@ -55,9 +55,32 @@ def test_save_maximum_information() -> None:

 def assert_everything_in_place(bcf: BcfXml):
    assert bcf.version.version_id == "2.1"
+    assert bcf.project
    assert bcf.project.name == "BCF API Implementation"
+    assert bcf.project_info
    assert bcf.project_info.extension_schema == "extensions.xsd"

+    assert bcf.extensions
+    assert bcf.extensions.topic_types
+    assert bcf.extensions.topic_types.topic_type == ["Architecture", "Hidden Type", "Structural"]
+    assert bcf.extensions.topic_statuses
+    assert bcf.extensions.topic_statuses.topic_status == ["Finished status", "Open", "Closed"]
+    assert bcf.extensions.priorities
+    assert bcf.extensions.priorities.priority == ["Low", "High", "Medium"]
+    assert bcf.extensions.topic_labels
+    assert bcf.extensions.topic_labels.topic_label == [
+        "Architecture",
+        "IT Development",
+        "Management",
+        "Mechanical",
+        "Structural",
+    ]
+    assert bcf.extensions.users
+    assert bcf.extensions.users.user == ["dangl@iabi.eu", "linhard@iabi.eu"]
+    assert bcf.extensions.snippet_types
+    assert bcf.extensions.snippet_types.snippet_type == ["IFC2X3", "PDF", "XLSX"]
+    assert bcf.extensions.stages is None
+
    assert len(bcf.topics) == 2
    assert_first_topic_handler(bcf.topics["7ddc3ef0-0ab7-43f1-918a-45e38b42369c"])
    second_th = bcf.topics["d1068c81-af04-4546-b63c-348810f6c716"]
@@ -1,4 +1,5 @@
 """BCF XML tests."""
+
 import uuid
 from pathlib import Path
 from tempfile import TemporaryDirectory
@@ -39,6 +39,22 @@ def assert_everything_in_place(bcf: BcfXml):
    assert bcf.project.name == "BCF 3.0 test cases"
    assert bcf.project.project_id == "de894a86-3a08-4ea0-b2d1-6c222b5602d1"

+    assert bcf.extensions
+    assert bcf.extensions.topic_types
+    assert bcf.extensions.topic_types.topic_type == ["ERROR", "WARNING", "INFORMATION", "CLASH", "OTHER"]
+    assert bcf.extensions.topic_statuses
+    assert bcf.extensions.topic_statuses.topic_status == ["OPEN", "IN_PROGRESS", "SOLVED", "CLOSED"]
+    assert bcf.extensions.priorities
+    assert bcf.extensions.priorities.priority == ["LOW", "MEDIUM", "HIGH", "CRITICAL"]
+    assert bcf.extensions.topic_labels
+    assert bcf.extensions.topic_labels.topic_label == []
+    assert bcf.extensions.users
+    assert bcf.extensions.users.user == ["Architect@example.com", "Engineer@example.com", "MEPDesigner@example.com"]
+    assert bcf.extensions.snippet_types
+    assert bcf.extensions.snippet_types.snippet_type == []
+    assert bcf.extensions.stages
+    assert bcf.extensions.stages.stage == []
+
    assert len(bcf.topics) == 1
    topic_handler = bcf.topics["8ac9822a-761a-4deb-9f39-f61286acbf6a"]

@@ -1,362 +0,0 @@
-# BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020-2023 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of BlenderBIM Add-on.
-#
-# BlenderBIM Add-on 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.
-#
-# BlenderBIM Add-on 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 BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
-
-PYTHON:=python3.11
-PIP:=pip3.11
-PATCH:=patch
-SED:=sed -i
-ifeq ($(OS),Windows_NT)
-HOSTOS:=win
-else
-UNAME_S:=$(shell uname -s)
-ifeq ($(UNAME_S),Linux)
-HOSTOS:=linux
-endif
-ifeq ($(UNAME_S),Darwin)
-HOSTOS:=macos
-PYTHON:=python3
-PATCH:=patch -d
-SED:=sed -i '' -e
-endif
-endif
-
-IS_STABLE:=FALSE
-VERSION:=$(shell cat ../../VERSION)
-VERSION_MAJOR:=$(shell cat '../../VERSION' | cut -d '.' -f 1)
-VERSION_MINOR:=$(shell cat '../../VERSION' | cut -d '.' -f 2)
-VERSION_PATCH:=$(shell cat '../../VERSION' | cut -d '.' -f 3)
-VERSION_DATE:=$(shell date '+%y%m%d')
-LAST_COMMIT_HASH:=$(shell git rev-parse HEAD)
-PYVERSION:=py310
-PYPI_IMP:=cp
-
-ifeq ($(PYVERSION), py39)
-PYLIBDIR:=python3.9
-PYNUMBER:=39
-PYPI_VERSION:=3.9
-endif
-ifeq ($(PYVERSION), py310)
-PYLIBDIR:=python3.10
-PYNUMBER:=310
-PYPI_VERSION:=3.10
-endif
-ifeq ($(PYVERSION), py311)
-PYLIBDIR:=python3.11
-PYNUMBER:=311
-PYPI_VERSION:=3.11
-endif
-ifeq ($(PYVERSION), py312)
-PYLIBDIR:=python3.12
-PYNUMBER:=312
-PYPI_VERSION:=3.12
-endif
-
-ifeq ($(PLATFORM), linux)
-PYPI_PLATFORM:=--platform manylinux_2_17_x86_64
-endif
-
-ifeq ($(PLATFORM), macos)
-PYPI_PLATFORM:=--platform macosx_10_10_x86_64
-endif
-
-ifeq ($(PLATFORM), macosm1)
-PYPI_PLATFORM:=--platform macosx_11_0_arm64
-endif
-
-ifeq ($(PLATFORM), win)
-PYPI_PLATFORM:=--platform win_amd64
-endif
-
-# Current build commit hash.
-OLD:=c18e4ea
-.PHONY: bump
-bump:
-	cd . && $(SED) -b "s/$(OLD)/$(NEW)/" Makefile
-	cd ../ifcopenshell-python/ && $(SED) -b "s/$(OLD)/$(NEW)/" Makefile
-	cd ../ifcopenshell-python/docs/ifcconvert/ && $(SED) -b "s/$(OLD)/$(NEW)/" installation.rst
-
-.PHONY: dist
-dist:
-ifndef PLATFORM
-	$(error PLATFORM is not set)
-endif
-	rm -rf dist
-	mkdir -p dist/working
-	mkdir -p dist/blenderbim
-	cp -r blenderbim/* dist/blenderbim/
-
-	# Provides IfcOpenShell Python functionality
-	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v0.7.9-${OLD}-$(PLATFORM)64.zip
-	cd dist/working && unzip ifcopenshell-python*
-	cp -r dist/working/ifcopenshell dist/blenderbim/libs/site/packages/
-
-	# See bug #812
-	cd dist/working && wget https://raw.githubusercontent.com/IfcOpenShell/IfcOpenShell/v0.8.0/src/blenderbim/occ_utils.py
-	cd dist/working && mv occ_utils.py ../blenderbim/libs/site/packages/ifcopenshell/geom/occ_utils.py
-	rm -rf dist/working
-
-	# Provides dependencies that are part of IfcOpenShell
-	mkdir dist/working
-	cd dist/working && wget https://github.com/IfcOpenShell/IfcOpenShell/archive/refs/heads/v0.8.0.zip
-	cd dist/working && unzip v0.8.0.zip
-	# IfcOpenBot sometimes lags behind, so we only use its binaries
-	mv dist/blenderbim/libs/site/packages/ifcopenshell/*ifcopenshell_wrapper* dist/working/
-	rm -rf dist/blenderbim/libs/site/packages/ifcopenshell
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifcopenshell-python/ifcopenshell dist/blenderbim/libs/site/packages/
-	mv dist/working/*ifcopenshell_wrapper* dist/blenderbim/libs/site/packages/ifcopenshell/
-	# Provides bcf functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/bcf/src/bcf dist/blenderbim/libs/site/packages/
-	# Provides IFCClash functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifcclash/ifcclash dist/blenderbim/libs/site/packages/
-	# Provides BIMTester functionality
-	cd dist/working && $(PYTHON) -m venv env
-	cd dist/working && . env/bin/activate && $(PIP) install pybabel
-	cd dist/working && . env/bin/activate && $(PIP) install babel
-	cd dist/working && . env/bin/activate && ./env/bin/pybabel compile -d ./IfcOpenShell-0.8.0/src/ifcbimtester/bimtester/locale/
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifcbimtester/bimtester dist/blenderbim/libs/site/packages/
-	# Provides IFCTester functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifctester/ifctester dist/blenderbim/libs/site/packages/
-	# Provides IFCFM functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifcfm/ifcfm dist/blenderbim/libs/site/packages/
-	# Provides bSDD functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/bsdd/* dist/blenderbim/libs/site/packages/
-	# Provides IFCDiff functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifcdiff/* dist/blenderbim/libs/site/packages/
-	# Provides IFCCSV functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifccsv/* dist/blenderbim/libs/site/packages/
-	# Provides IFCPatch functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifcpatch/ifcpatch dist/blenderbim/libs/site/packages/
-	# Provides IFC4D functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifc4d/ifc4d dist/blenderbim/libs/site/packages/
-	# Provides IFC5D functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifc5d/ifc5d dist/blenderbim/libs/site/packages/
-	# Provides IFCCityJSON functionality
-	cp -r dist/working/IfcOpenShell-0.8.0/src/ifccityjson dist/blenderbim/libs/site/packages/
-	# Provides IfcGit functionality
-	cd dist/working && . env/bin/activate && $(PIP) install GitPython --target=./site-packages
-	cp -r dist/working/site-packages/smmap dist/blenderbim/libs/site/packages/
-	cp -r dist/working/site-packages/gitdb dist/blenderbim/libs/site/packages/
-	cp -r dist/working/site-packages/git dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Provides audio playback for costing
-	mkdir -p dist/working
-	git clone https://github.com/Andrej730/aud.git --branch master-reduced-size --depth 1 dist/working/aud
-	cd dist/working/aud && git checkout 529af208fbcb707c387bfb681d2605c0b6112de7
-	cp -r dist/working/aud/aud dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Provides jsgantt-improved supports for web-based construction sequencing gantt charts
-	mkdir dist/working
-	cd dist/working && wget https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.js
-	cd dist/working && wget https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.css
-	cp dist/working/jsgantt* dist/blenderbim/bim/data/gantt/
-	rm -rf dist/working
-
-	mkdir dist/working
-	cd dist/working && $(PYTHON) -m venv env
-	cd dist/working && mkdir site-packages
-	# IfcOpenShell dependency - support for new typing features
-	cd dist/working && . env/bin/activate && $(PIP) install typing_extensions --target=./site-packages
-	# Required by IfcCSV
-	cd dist/working && . env/bin/activate && $(PIP) install pandas $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
-	# Pandas ships with very heavy tests
-	cd dist/working/site-packages/pandas && rm -rf tests
-	cd dist/working && . env/bin/activate && $(PIP) install openpyxl --target=./site-packages
-	cd dist/working && . env/bin/activate && $(PIP) install odfpy --target=./site-packages
-	# Required by IFCCityJSON
-	cd dist/working && . env/bin/activate && $(PIP) install cjio --target=./site-packages
-	# Provides express rule validation for ifcopenshell.validate
-	cd dist/working && . env/bin/activate && $(PIP) install pytest --target=./site-packages
-	# Provides Brickschema functionality
-	cd dist/working && . env/bin/activate && $(PIP) install "brickschema[persistence]==0.7.6a2" --target=./site-packages
-	# Required for SVG to DXF conversion
-	cd dist/working && . env/bin/activate && $(PIP) install ezdxf --target=./site-packages
-	# Required by bcf
-	cd dist/working && . env/bin/activate && $(PIP) install xsdata --target=./site-packages
-	cd dist/working && . env/bin/activate && $(PIP) install xmlschema --target=./site-packages
-	cd dist/working && . env/bin/activate && $(PIP) install elementpath --target=./site-packages
-	cd dist/working && . env/bin/activate && $(PIP) install six --target=./site-packages
-	# Required by drawing module
-	cd dist/working && . env/bin/activate && $(PIP) install lxml $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
-	# Required by qto and drawing module
-	cd dist/working && . env/bin/activate && $(PIP) install shapely $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
-	# Required by the BIM type manager thumbnail generator
-	cd dist/working && . env/bin/activate && $(PIP) install pillow $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
-	# Provides mustache templating in construction docs and web UI data
-	cd dist/working && . env/bin/activate && $(PIP) install pystache --target=./site-packages
-	# Provides SVG export in construction documentation
-	cd dist/working && . env/bin/activate && $(PIP) install svgwrite --target=./site-packages
-	# Provides fuzzy date parsing for construction sequencing
-	cd dist/working && . env/bin/activate && $(PIP) install python-dateutil --target=./site-packages
-	# Provides duration parsing for construction sequencing
-	cd dist/working && . env/bin/activate && $(PIP) install isodate --target=./site-packages
-	# Provides networkx graph analysis for project dependency calculations
-	cd dist/working && . env/bin/activate && $(PIP) install networkx --target=./site-packages
-	# Required by IFCDiff
-	cd dist/working && . env/bin/activate && $(PIP) install deepdiff --target=./site-packages
-	# Required by IFCCSV and ifcopenshell.util.selector
-	cd dist/working && . env/bin/activate && $(PIP) install lark --target=./site-packages
-	# Required by IFC4D
-	cd dist/working && . env/bin/activate && $(PIP) install PyP6Xer --target=./site-packages
-	# Required by web module
-	cd dist/working && . env/bin/activate && $(PIP) install python-socketio[asyncio_client] --target=./site-packages
-	cd dist/working && . env/bin/activate && $(PIP) install aiohttp --target=./site-packages
-	# Required by light module
-ifeq ($(PLATFORM), linux)
-	# See https://github.com/LBNL-ETA/pyradiance/issues/34
-	cd dist/working && . env/bin/activate && $(PIP) install pyradiance --platform manylinux1_x86_64 --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
-else ifneq ($(PLATFORM), macos)
-	# No support for MacOS Intel from upstream. Too bad :(
-	cd dist/working && . env/bin/activate && $(PIP) install pyradiance $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
-endif
-
-	cp -r dist/working/site-packages/* dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required by BIMTester
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/c8/4b/d0a8c23b6c8985e5544ea96d27105a273ea22051317f850c2cdbf2029fe4/behave-1.2.6.tar.gz
-	cd dist/working && tar -xzvf behave*
-	cd dist/working/behave-1.2.6/ && cp -r behave ../../blenderbim/libs/site/packages/
-	# See bug #1294
-	cd dist/working/ && wget https://raw.githubusercontent.com/IfcOpenShell/IfcOpenShell/v0.8.0/src/ifcbimtester/patch/model_core.patch
-	cd dist/working/ && wget https://raw.githubusercontent.com/IfcOpenShell/IfcOpenShell/v0.8.0/src/ifcbimtester/patch/runner_util.patch
-	cd dist/working/ && $(PATCH) ../blenderbim/libs/site/packages/behave/model_core.py < model_core.patch
-	cd dist/working/ && $(PATCH) ../blenderbim/libs/site/packages/behave/runner_util.py < runner_util.patch
-	# See bug #2159
-	cd dist/working/ && wget https://raw.githubusercontent.com/IfcOpenShell/IfcOpenShell/v0.8.0/src/ifcbimtester/patch/junit.patch
-	cd dist/working/ && $(PATCH) ../blenderbim/libs/site/packages/behave/reporter/junit.py < junit.patch
-	rm -rf dist/working
-
-	# Required by behave
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/f4/65/220bb4075fddb09d5b3ea2c1c1fa66c1c72be9361ec187aab50fa161e576/parse-1.15.0.tar.gz
-	cd dist/working && tar -xzvf parse*
-	cd dist/working/parse-1.15.0/ && cp parse.py ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required by behave
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/2e/79/81bebd1b0446d46733db99d74543b4bb80646ef4c988584bae0862e706bc/parse_type-0.5.2.tar.gz
-	cd dist/working && tar -xzvf parse_type*
-	cd dist/working/parse_type-0.5.2/ && cp -r parse_type ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Provides IFCJSON functionality
-	mkdir dist/working
-	cd dist/working && wget https://github.com/IFCJSON-Team/IFC2JSON_python/archive/master.zip
-	cd dist/working && unzip master.zip
-	cp -r dist/working/IFC2JSON_python-master/file_converters/ifcjson dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Provides Brickschema functionality
-	mkdir dist/working
-	# For now lets bundle the latest nightly schema
-	cd dist/working && wget https://github.com/BrickSchema/Brick/releases/download/nightly/Brick.ttl
-	cd dist/working && cp Brick.ttl ../blenderbim/bim/schema/Brick.ttl
-	rm -rf dist/working
-
-	# Required by brickschema
-	# This is a bit of a dodgy one, it should be provided by setuptools which Blender doesn't ship.
-	mkdir dist/working
-	cd dist/working && wget https://github.com/IfcOpenShell/IfcOpenShell/raw/v0.8.0/src/blenderbim/scripts/pkg_resources.tar.gz
-	cd dist/working && tar -xzvf pkg_resources*
-	cd dist/working/ && cp -r pkg_resources ../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required for hipped roof generation
-	mkdir dist/working
-	cd dist/working && wget https://github.com/prochitecture/bpypolyskel/archive/refs/heads/master.zip
-	cd dist/working && unzip master.zip
-	cp -r dist/working/bpypolyskel-master/bpypolyskel dist/blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required for Desktop icon and file association
-	cp -r blenderbim/libs/desktop dist/blenderbim/libs/
-
-	# Generate translations module for BBIM build
-	git clone https://github.com/IfcOpenShell/blenderbim-translations.git dist/working
-	$(PYTHON) scripts/bbim_translations.py -i "dist/working" -o "dist/blenderbim"
-	rm -rf dist/working
-
-	# Remove dependencies also bundled with Blender
-	rm -rf dist/blenderbim/libs/site/packages/numpy
-	rm -rf dist/blenderbim/libs/site/packages/numpy.libs
-
-ifeq ($(IS_STABLE), TRUE)
-	cd dist/blenderbim && $(SED) "s/0, 0, 0/$(VERSION_MAJOR), $(VERSION_MINOR), $(VERSION_PATCH)/" __init__.py
-	cd dist/blenderbim && $(SED) "s/0.0.0/$(VERSION)/" blender_manifest.toml
-	cd dist && zip -r blenderbim-$(VERSION)-$(PYVERSION)-$(PLATFORM).zip ./*
-else
-	cd dist/blenderbim && $(SED) "s/0, 0, 0/$(VERSION_MAJOR), $(VERSION_MINOR), $(VERSION_PATCH), $(VERSION_DATE)/" __init__.py
-	cd dist/blenderbim && $(SED) "s/0.0.0/$(VERSION).$(VERSION_DATE)/" blender_manifest.toml
-	cd dist/blenderbim/bim && $(SED) "s/8888888/$(LAST_COMMIT_HASH)/" __init__.py
-	cd dist && zip -r blenderbim-$(VERSION).$(VERSION_DATE)-$(PYVERSION)-$(PLATFORM).zip ./*
-endif
-	rm -rf dist/blenderbim
-
-.PHONY: test
-test:
-	make test-core
-	make test-tool
-	make test-bim
-
-.PHONY: test-core
-test-core:
-	pytest -p no:pytest-blender test/core
-
-.PHONY: test-bim
-test-bim:
-ifndef MODULE
-	pytest test/bim
-else
-	pytest test/bim -m "$(MODULE)" ./ --maxfail=1
-endif
-
-.PHONY: test-tool
-test-tool:
-ifndef MODULE
-	pytest test/tool
-else
-	pytest test/tool/test_$(MODULE).py
-endif
-
-.PHONY: qa
-qa:
-	black .
-	pylint ./* --output-format=colorized --disable all --enable E --disable import-error
-
-.PHONY: coverage
-coverage:
-	coverage run --source blenderbim.core -m pytest -p no:pytest-blender test/core
-	coverage html
-	xdg-open htmlcov/index.html
-
-.PHONY: license
-license:
-	copyright-header --license GPL3 --copyright-holder "Dion Moult <dion@thinkmoult.com>" --copyright-year "2022" --copyright-software "BlenderBIM Add-on" --copyright-software-description "OpenBIM Blender Add-on" -a ./ -o ./
-
-.PHONY: clean
-clean:
-	rm -rf dist
-	rm -rf htmlcov
-
-.PHONY: dev
-dev:
-	blender -p setup_pytest.py
@@ -1,5 +0,0 @@
-# BlenderBIM Add-on
-
-An add-on to Blender to allow BIM functionality.
-
-More information on the [BlenderBIM Add-on website](https://blenderbim.org).
@@ -1,220 +0,0 @@
-# BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of BlenderBIM Add-on.
-#
-# BlenderBIM Add-on 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.
-#
-# BlenderBIM Add-on 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 BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import sys
-
-# Ensure we don't try to import bpy or blenderbim.bim
-# to support running core tests.
-# We assume if bpy was never loaded in current python session
-# then we're not in Blender. It's still possible to use
-# bpy in core and core tests for annotations using TYPE_CHECKING.
-IN_BLENDER = sys.modules.get("bpy", None)
-if IN_BLENDER:
-    import bpy
-    import addon_utils
-import platform
-import traceback
-import webbrowser
-from collections import deque
-
-# NOTE: bl_info is superseded by blender_manifest.toml
-# if addon is installed as an extension (Blender 4.2+)
-bl_info = {
-    "name": "BlenderBIM",
-    "description": "Transforms Blender into a native Building Information Model authoring platform using IFC.",
-    "author": "IfcOpenShell Contributors",
-    "blender": (3, 1, 0),
-    "version": (0, 0, 0),
-    "location": "File Menu, Scene Properties Tab. See documentation for more.",
-    "doc_url": "https://docs.blenderbim.org/",
-    "tracker_url": "https://github.com/IfcOpenShell/IfcOpenShell/issues",
-    "category": "System",
-}
-
-last_error = None
-last_actions: deque = deque(maxlen=10)
-
-
-def get_debug_info():
-    version = ".".join(
-        [
-            str(x)
-            for x in [
-                addon.bl_info.get("version", (-1, -1, -1))
-                for addon in addon_utils.modules()
-                if addon.bl_info["name"] == "BlenderBIM"
-            ][0]
-        ]
-    )
-    return {
-        "os": platform.system(),
-        "os_version": platform.version(),
-        "python_version": platform.python_version(),
-        "architecture": platform.architecture(),
-        "machine": platform.machine(),
-        "processor": platform.processor(),
-        "blender_version": bpy.app.version_string,
-        "blenderbim_version": version,
-        "last_actions": last_actions,
-        "last_error": last_error,
-    }
-
-
-def format_debug_info(info: dict):
-    last_actions = ""
-    for action in info["last_actions"]:
-        last_actions += f"\n# {action['type']}: {action['name']}"
-        if settings := action.get("settings"):
-            last_actions += f"\n>>> {settings}"
-    info["last_actions"] = last_actions
-    text = "\n".join(f"{k}: {v}" for k, v in info.items())
-    return text.strip()
-
-
-if IN_BLENDER:
-    # Process *.pth in /libs/site/packages to setup globally importable modules
-    # This is 3 levels deep as required by the static RPATH of ../../ from dependencies taken from Anaconda
-    # site.addsitedir(os.path.join(os.path.dirname(os.path.realpath(__file__)), "libs", "site", "packages"))
-    sys.path.insert(0, os.path.join(os.path.dirname(os.path.realpath(__file__)), "libs", "site", "packages"))
-
-    try:
-        import ifcopenshell.api
-
-        def log_api(usecase_path, ifc_file, settings):
-            last_actions.append(
-                {
-                    "type": "ifcopenshell.api",
-                    "name": usecase_path,
-                    "settings": ifcopenshell.api.serialise_settings(settings),
-                }
-            )
-
-        ifcopenshell.api.add_pre_listener("*", "action_logger", log_api)
-
-        def register():
-            global BLENDER_PACKAGE_NAME, __name__, __package__
-            BLENDER_PACKAGE_NAME = __name__
-            if bpy.app.version >= (4, 2, 0):
-                sys.modules["blenderbim"] = sys.modules[__name__]
-                __name__ = "blenderbim"
-                # Only renaming __name__ is actually required to make imports work.
-                # We renaming __package__ just for consistency.
-                __package__ = "blenderbim"
-            import blenderbim.bim
-
-            blenderbim.bim.register()
-
-        def unregister():
-            import blenderbim.bim
-
-            blenderbim.bim.unregister()
-
-    except:
-        last_error = traceback.format_exc()
-
-        print(last_error)
-        print(format_debug_info(get_debug_info()))
-        print("\nFATAL ERROR: Unable to load the BlenderBIM Add-on")
-
-        class BIM_PT_fatal_error(bpy.types.Panel):
-            bl_label = "BlenderBIM Fatal Error"
-            bl_idname = "SCENE_PT_error_message"
-            bl_space_type = "PROPERTIES"
-            bl_region_type = "WINDOW"
-            bl_context = "scene"
-
-            def draw(self, context):
-                info = get_debug_info()
-
-                layout = self.layout
-                layout.alert = True
-                layout.label(text="BlenderBIM could not load.", icon="ERROR")
-                if info["os"] == "Windows":
-                    layout.operator("wm.console_toggle", text="View the console for full logs.", icon="CONSOLE")
-                else:
-                    layout.label(text="View the console for full logs.", icon="CONSOLE")
-                box = layout.box()
-                py = ".".join(info["python_version"].split(".")[0:2])
-                b3d = ".".join(info["blender_version"].split(".")[0:2])
-                box.label(text=f"Blender {b3d} {info['os']} {info['machine']}", icon="BLENDER")
-                box.label(text=f"Python {py} BBIM {info['blenderbim_version']}", icon="SCRIPTPLUGINS")
-                layout.operator("bim.copy_debug_information", text="Copy Error Message To Clipboard")
-                op = layout.operator("bim.open_uri", text="How Can I Fix This?")
-                op.uri = "https://docs.blenderbim.org/users/troubleshooting.html#installation-issues"
-
-                layout.label(text="Try Reinstalling:", icon="IMPORT")
-                op = layout.operator("bim.open_uri", text="Re-download Add-on")
-                bbim_date = info["blenderbim_version"].split(".")[-1]
-                py_tag = py.replace(".", "")
-                if "Linux" in info["os"]:
-                    os = "linux"
-                elif "Darwin" in info["os"]:
-                    if "arm64" in info["machine"]:
-                        os = "macosm1"
-                    else:
-                        os = "macos"
-                else:
-                    os = "win"
-                op.uri = f"https://github.com/IfcOpenShell/IfcOpenShell/releases/download/blenderbim-{bbim_date}/blenderbim-{bbim_date}-py{py_tag}-{os}.zip"
-
-        class OpenUri(bpy.types.Operator):
-            bl_idname = "bim.open_uri"
-            bl_label = "Open URI"
-            uri: bpy.props.StringProperty()
-
-            def execute(self, context):
-                webbrowser.open(self.uri)
-                return {"FINISHED"}
-
-        class CopyDebugInformation(bpy.types.Operator):
-            bl_idname = "bim.copy_debug_information"
-            bl_label = "Copy Debug Information"
-            bl_description = "Copies debugging information to your clipboard for use in bugreports"
-
-            def execute(self, context):
-                info = format_debug_info(get_debug_info())
-                context.window_manager.clipboard = info
-                return {"FINISHED"}
-
-        class HiddenPanel:
-            @classmethod
-            def false_poll(cls, context):
-                return False
-
-        def register():
-            # Only show our error panel and nothing else in the scene tab
-            for item_name in dir(bpy.types):
-                item = getattr(bpy.types, item_name)
-                if not hasattr(item, "bl_rna") or not isinstance(item.bl_rna, bpy.types.Panel):
-                    continue
-                if getattr(item, "bl_context", None) != "scene":
-                    continue
-
-                # Reregister scene panel with a new poll to hide it
-                item.poll = HiddenPanel.false_poll
-                bpy.utils.unregister_class(item)
-                bpy.utils.register_class(item)
-            bpy.utils.register_class(BIM_PT_fatal_error)
-            bpy.utils.register_class(CopyDebugInformation)
-            bpy.utils.register_class(OpenUri)
-
-        def unregister():
-            bpy.utils.unregister_class(OpenUri)
-            bpy.utils.unregister_class(CopyDebugInformation)
-            bpy.utils.unregister_class(BIM_PT_fatal_error)
@@ -1,122 +0,0 @@
-import argparse
-from aiohttp import web
-import socketio
-import pystache
-import json
-
-sio_port = 8080  # default port
-
-sio = socketio.AsyncServer(
-    cors_allowed_origins="*",
-    async_mode="aiohttp",
-)
-
-# sio.instrument(
-#     auth={
-#         "username": "admin",
-#         "password": "admin",
-#     }
-# )
-
-app = web.Application()
-sio.attach(app)
-
-blender_messages = {}
-
-
-# Web namespace
-class WebNamespace(socketio.AsyncNamespace):
-    def __init__(self, namespace):
-        super().__init__(namespace)
-
-    async def on_connect(self, sid, environ):
-        print(f"Web client connected: {sid}")
-
-    async def on_disconnect(self, sid):
-        print(f"Web client disconnected: {sid}")
-
-    async def on_web_operator(self, sid, data):
-        await sio.emit(
-            "web_operator",
-            data,
-            namespace="/blender",
-            room=data["blenderId"],
-        )
-
-
-# Blender namespace
-class BlenderNamespace(socketio.AsyncNamespace):
-    def __init__(self, namespace):
-        super().__init__(namespace)
-
-    async def on_connect(self, sid, environ):
-        print(f"Blender client connected: {sid}")
-        # Notify web client about new connection
-        blender_messages[sid] = {}
-        await sio.emit("blender_connect", sid, namespace="/web")
-
-    async def on_disconnect(self, sid):
-        print(f"Blender client disconnected: {sid}")
-        # Remove client message and notify web client about disconnection
-        if sid in blender_messages:
-            del blender_messages[sid]
-        await sio.emit("blender_disconnect", sid, namespace="/web")
-
-    async def on_data(self, sid, data):
-        print(f"Data from Blender client {sid}")
-        # blender_messages[sid]["default_data"] = data
-        # await sio.emit("default_data", {"blenderId": sid, "data": data}, namespace="/web")
-
-    async def on_csv_data(self, sid, data):
-        print(f"CSV data from Blender client {sid}")
-        # Store the message and forward it to the web client
-        blender_messages[sid]["csv_data"] = data
-        await sio.emit("csv_data", {"blenderId": sid, "data": data}, namespace="/web")
-
-    async def on_gantt_data(self, sid, data):
-        print(f"Gant Chart data from Blender client {sid}")
-        blender_messages[sid]["gantt_data"] = data
-        await sio.emit("gantt_data", {"blenderId": sid, "data": data}, namespace="/web")
-
-
-# Attach namespaces
-sio.register_namespace(WebNamespace("/web"))
-sio.register_namespace(BlenderNamespace("/blender"))
-
-
-# Define a route to render the index.html template
-async def index(request):
-    with open("templates/index.html", "r") as f:
-        template = f.read()
-    html_content = pystache.render(template, {"port": sio_port})
-    return web.Response(text=html_content, content_type="text/html")
-
-
-async def gantt(request):
-    with open("templates/gantt.html", "r") as f:
-        template = f.read()
-    html_content = pystache.render(template, {"port": sio_port})
-    return web.Response(text=html_content, content_type="text/html")
-
-
-app.router.add_get("/", index)
-app.router.add_get("/gantt", gantt)
-app.router.add_static("/jsgantt/", path="../gantt", name="jsgantt")
-app.router.add_static("/static/", path="./static", name="static")
-
-
-def main():
-    global sio_port
-
-    parser = argparse.ArgumentParser(description="SocketIO server")
-    parser.add_argument("--host", type=str, default="127.0.0.1", help="Host to run the server on")
-    parser.add_argument("--port", type=int, default=8080, help="Port to run the server on")
-
-    args = parser.parse_args()
-    sio_port = args.port
-    web.run_app(app, host=args.host, port=sio_port)
-
-
-if __name__ == "__main__":
-    main()
-    # web.run_app(app, host="127.0.0.1", port=sio_port)
@@ -1,280 +0,0 @@
-:root {
-    color-scheme: dark;
-}
-
-body {
-    background-color: #252525;
-    color: #e0e0e0;
-    margin: 0;
-    font-family: Arial, sans-serif;
-}
-
-#container {
-    margin-top: 20px;
-    margin-left: 10px;
-    margin-right: 10px;
-    margin-bottom: 20px;
-}
-
-h3 {
-    margin-top: 0;
-}
-
-nav {
-    background-color: #121212;
-    padding: 1em 0;
-    display: flex;
-    align-items: center;
-    position: relative;
-}
-
-nav .logo {
-    margin-left: 40px;
-    height: 40px;
-    /* Adjust height as needed */
-}
-
-nav ul {
-    list-style-type: none;
-    margin: 0;
-    margin-left: 1px;
-    display: flex;
-    flex-grow: 1;
-    justify-content: center;
-}
-
-nav ul li {
-    margin-right: 50px;
-}
-
-nav ul li a {
-    text-decoration: none;
-    color: #fff;
-    font-size: 1.2em;
-}
-
-nav ul li a:hover,
-nav ul li a.active {
-    color: #3fb449;
-}
-
-nav .bottom-bar {
-    position: absolute;
-    bottom: 0;
-    left: 0;
-    width: 100%;
-    height: 2px;
-    background-color: #25682a;
-}
-
-.table-description {
-    margin-bottom: 1rem;
-    width: 50%;
-    background-color: transparent;
-    border-collapse: collapse;
-    border-spacing: 0;
-    border-color: #464444;
-    border: 1px solid #464444;
-    border-radius: 0.25rem;
-    box-shadow: 0 0 0.7rem rgba(95, 95, 95, 0.4);
-    text-align: center;
-}
-
-.table-description tr {
-    display: table-row;
-    border-bottom: 1px solid #464444;
-}
-
-.gantt-info {
-    margin: 0.5rem;
-    font-size: 1rem;
-    font-weight: bold;
-}
-
-.btn {
-    margin: 0.5rem;
-    font-size: 1rem;
-    cursor: pointer;
-}
-
-@media print {
-    .no-print {
-        display: none;
-    }
-}
-
-/* ------------ Overwriting JSGantt CSS rules ------------ */
-
-div.gantt {
-    background-color: #252525;
-    color: #c7c7c7;
-}
-
-.gantt table {
-    border-color: #464444;
-    ;
-}
-
-.gantt td {
-    border-color: #464444;
-    ;
-}
-
-/* Headings and cell defaults */
-.gmajorheading,
-.gminorheading,
-.gminorheadingwkend,
-.gtaskcell,
-.gtaskcellcurrent,
-.gtaskcellwkend,
-.gname,
-.ggroupitem,
-.gtaskheading {
-    background-color: #252525;
-    border-color: #464444;
-    ;
-}
-
-.gtaskheading,
-.gname,
-.gtaskname,
-.gres,
-.gdur,
-.gcomp,
-.gstartdate,
-.gplanstartdate,
-.gplanenddate,
-.gcost,
-.gchartlbl,
-.gcontainercol,
-.genddate {
-    color: #c7c7c7;
-    border-color: #464444;
-    ;
-}
-
-.gtaskname>div {
-    color: #c7c7c7;
-}
-
-.gtaskbarcontainer.gplan,
-.gchartlbl.gcontainercol {
-    background: #252525;
-    border-color: #464444;
-}
-
-.gtaskname div,
-.gtaskheading div,
-.gtaskname span {
-    color: #c7c7c7;
-}
-
-
-.gtasklist,
-.gadditional {
-    border: #464444 1px solid
-}
-
-.gchartgrid {
-    background-color: #252525;
-}
-
-.glistgrid,
-.glistlbl {
-    background-color: #252525;
-    border-color: #464444;
-    ;
-}
-
-/* .gTaskInfo {
-    background-color: #2e2e2e;
-    color: #c7c7c7;
-    border-color: #c7c7c7;;
-} */
-
-/* Dark mode scrollbar */
-.frame::-webkit-scrollbar-thumb {
-    background-color: #252525;
-}
-
-.frame::-webkit-scrollbar-track {
-    background-color: #252525;
-}
-
-/* Highlight row */
-.gitemhighlight td {
-    background-color: #009136;
-    color: #ffffff;
-}
-
-/* Differentiate Group, Milestone and Ordinary task items (applied to row) */
-.ggroupitem {
-    background-color: #252525;
-    font-weight: bold;
-    border-color: #464444;
-}
-
-.gmileitem,
-.glineitem {
-    background-color: #252525;
-}
-
-/* Task bar caption text styles */
-.gmilecaption,
-.ggroupcaption,
-.gcaption {
-    color: #ffffff;
-}
-
-/* Task complete %age bar */
-.gtaskcomplete {
-    background-color: #777777;
-}
-
-/* Milestones */
-.gmdtop {
-    border-bottom: 5px solid #ffffff;
-}
-
-.gmdbottom {
-    border-top: 5px solid #ffffff;
-}
-
-.gfoldercollapse {
-    color: #c7c7c7;
-    cursor: pointer;
-    font-weight: bold;
-
-    font-size: 12px;
-    font-family: Courier, "Courier New", monospace;
-}
-
-/* Highlight for collapsible row */
-.gname.ggroupitem {
-    background-color: rgb(75, 75, 75);
-}
-
-/* Form label and selected highlighting */
-.gformlabel {
-    background-color: #2e2e2e;
-    color: #c7c7c7;
-    border: #4a4a4a 1px solid;
-}
-
-span.gformlabel:hover {
-    background-color: #3a3a3a;
-    border-color: #565656;
-}
-
-span.gselected {
-    background-color: #565656;
-    border-color: #777777;
-    color: #ffffff;
-}
-
-.gantt-inputtable {
-    background-color: #3b3b3b;
-    box-sizing: border-box;
-    border: 1px solid #000;
-    color: #c7c7c7;
-}
@@ -1,76 +0,0 @@
-:root {
-    color-scheme: dark;
-}
-
-body {
-    background-color: #252525;
-    color: #e0e0e0;
-    margin: 0;
-    font-family: Arial, sans-serif;
-}
-
-#container {
-    margin-top: 20px;
-    margin-left: 10px;
-    margin-right: 10px;
-    margin-bottom: 20px
-}
-
-.table-container {
-    margin-bottom: 40px;
-}
-
-.csv-table {
-    margin-top: 10px;
-}
-
-h3 {
-    margin-top: 0;
-}
-
-nav {
-    background-color: #121212;
-    padding: 1em 0;
-    display: flex;
-    align-items: center;
-    position: relative;
-}
-
-nav .logo {
-    margin-left: 40px;
-    height: 40px;
-    /* Adjust height as needed */
-}
-
-nav ul {
-    list-style-type: none;
-    margin: 0;
-    margin-left: 1px;
-    display: flex;
-    flex-grow: 1;
-    justify-content: center;
-}
-
-nav ul li {
-    margin-right: 50px;
-}
-
-nav ul li a {
-    text-decoration: none;
-    color: #fff;
-    font-size: 1.2em;
-}
-
-nav ul li a:hover,
-nav ul li a.active {
-    color: #3fb449;
-}
-
-nav .bottom-bar {
-    position: absolute;
-    bottom: 0;
-    left: 0;
-    width: 100%;
-    height: 2px;
-    background-color: #25682a;
-}
@@ -1,339 +0,0 @@
-// keeps track of blenders connected in form of
-// shown:bool, workSchedule: {}, ganttTasks: {},
-const connectedClients = {};
-let socket;
-
-// print options
-const pageSizes = [
-  { value: "210,297", text: "A4 Portrait" },
-  { value: "297,210", text: "A4 Landscape" },
-  { value: "297,420", text: "A3 Portrait" },
-  { value: "420,297", text: "A3 Landscape" },
-  { value: "420,594", text: "A2 Portrait" },
-  { value: "594,420", text: "A2 Landscape" },
-  { value: "594,841", text: "A1 Portrait" },
-  { value: "841,594", text: "A1 Landscape" },
-  { value: "841,1189", text: "A0 Portrait" },
-  { value: "1189,841", text: "A0 Landscape" },
-];
-
-// Document ready function
-$(document).ready(function () {
-  connectSocket();
-});
-
-// Function to connect to Socket.IO server
-function connectSocket() {
-  const url = "ws://localhost:" + SOCKET_PORT + "/web";
-  socket = io(url);
-  console.log("socket: ", socket);
-
-  // Register socket event handlers
-  socket.on("blender_connect", handleBlenderConnect);
-  socket.on("blender_disconnect", handleBlenderDisconnect);
-  socket.on("gantt_data", handleGanttData);
-}
-
-// Function to handle 'blender_connect' event
-function handleBlenderConnect(blenderId) {
-  console.log("blender_connect: ", blenderId);
-  if (!connectedClients.hasOwnProperty(blenderId)) {
-    connectedClients[blenderId] = {
-      shown: false,
-      workSchedule: {},
-      ganttTasks: {},
-    };
-  }
-}
-
-// Function to handle 'blender_disconnect' event
-function handleBlenderDisconnect(blenderId) {
-  console.log("blender_disconnect: ", blenderId);
-  if (connectedClients.hasOwnProperty(blenderId)) {
-    delete connectedClients[blenderId];
-    removeGanttElement(blenderId);
-  }
-}
-
-// Function to handle 'gantt_data' event
-function handleGanttData(data) {
-  const blenderId = data["blenderId"];
-
-  console.log(data);
-
-  const filename = data["data"]["IFC_File"];
-  const ganttTasks = data["data"]["gantt_data"]["tasks"];
-  const ganttWorkSched = data["data"]["gantt_data"]["work_schedule"];
-  // const ganttWorkSched = {};
-
-  if (connectedClients.hasOwnProperty(blenderId)) {
-    if (!connectedClients[blenderId].shown) {
-      connectedClients[blenderId] = {
-        shown: true,
-        ganttTasks: ganttTasks,
-        workSchedule: ganttWorkSched,
-      };
-      addGanttElement(blenderId, ganttTasks, ganttWorkSched, filename);
-    } else {
-      updateGanttElement(blenderId, ganttTasks, ganttWorkSched, filename);
-      connectedClients[blenderId].workSchedule = ganttWorkSched;
-      connectedClients[blenderId].ganttTasks = ganttTasks;
-    }
-  } else {
-    connectedClients[blenderId] = {
-      shown: true,
-      ganttTasks: ganttTasks,
-      workSchedule: ganttWorkSched,
-    };
-    addGanttElement(blenderId, ganttTasks, ganttWorkSched, filename);
-  }
-}
-
-// Function to add a new gantt with data and filename
-function addGanttElement(blenderId, tasks, workSched, filename) {
-  const ganttContainer = $("<div></div>")
-    .addClass("gantt-container")
-    .attr("id", "container-" + blenderId);
-
-  const ganttTitle = $("<h3></h3>")
-    .attr("id", "title-" + blenderId)
-    .text(filename)
-    .addClass("no-print")
-    .css("margin-bottom", "10px");
-
-  const workSchedDiv = $("<div></div>").attr("id", "workSched" + blenderId);
-
-  const scheduleTable = $("<table></table>")
-    .addClass("no-print table-description")
-    .attr("id", "workSchedTable-" + blenderId)
-    .hide();
-
-  $.each(workSched, (key, value) => {
-    value = value ? value : "null";
-    $("<tr></tr>")
-      .append($("<td></td>").text(key))
-      .append($("<td></td>").text(value))
-      .appendTo(scheduleTable);
-  });
-
-  const toggleButton = $("<button></button>")
-    .text("Show Schedule Info")
-    .addClass("btn no-print")
-    .on("click", function () {
-      scheduleTable.toggle();
-      const buttonText = scheduleTable.is(":visible")
-        ? "Hide Schedule Info"
-        : "Show Schedule Info";
-      toggleButton.text(buttonText);
-    });
-
-  var ganttInfoDiv = $("<div></div>")
-    .addClass("gantt-info")
-    .attr("id", "gantt-info-" + blenderId);
-
-  const scheduleName = $("<span></span>").text("Schedule: " + workSched.Name);
-
-  const createdOn = $("<span></span>")
-    .text("Created: " + new Date(workSched.CreationDate).toLocaleDateString())
-    .css("float", "right");
-
-  const ganttDiv = $("<div></div>")
-    .addClass("gantt-chart")
-    .attr("id", "gantt-" + blenderId);
-
-  ganttInfoDiv.append(scheduleName);
-  ganttInfoDiv.append(createdOn);
-
-  workSchedDiv.append(toggleButton);
-  workSchedDiv.append(scheduleTable);
-
-  ganttContainer.append(ganttTitle);
-  ganttContainer.append(workSchedDiv);
-  ganttContainer.append(ganttInfoDiv);
-  ganttContainer.append(ganttDiv);
-
-  $("#container").append(ganttContainer);
-
-  let g = new JSGantt.GanttChart($("#gantt-" + blenderId)[0], "week");
-  g.setOptions({
-    vCaptionType: "Caption", // Set to Show Caption : None,Caption,Resource,Duration,Complete,
-    vQuarterColWidth: 36,
-    vDateTaskDisplayFormat: "day dd month yyyy", // Shown in tool tip box
-    vDayMajorDateDisplayFormat: "mon yyyy - Week ww", // Set format to dates in the "Major" header of the "Day" view
-    vWeekMinorDateDisplayFormat: "dd mon", // Set format to display dates in the "Minor" header of the "Week" view
-    vLang: "en",
-    vShowTaskInfoLink: 1, // Show link in tool tip (0/1)
-    vShowEndWeekDate: 0, // Show/Hide the date for the last day of the week in header for daily
-    vUseSingleCell: 10000, // Set the threshold cell per table row (Helps performance for large data.
-    vFormatArr: ["Day", "Week", "Month", "Quarter"], // Even with setUseSingleCell using Hour format on such a large chart can cause issues in some browsers,
-    vShowRes: true, // Disable the resource column.
-    vShowComp: false, // Disable the completion column.
-    vShowDur: false, // Disable the duration column, because jsgantt doesn't calculate durations the way we want.
-    vAdditionalHeaders: {
-      ifcduration: { title: "Duration" },
-      resourceUsage: { title: "Resource Usage" },
-    },
-    vUseToolTip: true, // Disable tooltips.
-    vTooltipTemplate: generateTooltip,
-    vTotalHeight: 900,
-
-    vEventsChange: {
-      taskname: editValue, // if you need to use the this scope, do: editValue.bind(this)
-      res: editValue,
-      dur: editValue,
-      comp: editValue,
-      start: editValue,
-      end: editValue,
-      planstart: editValue,
-      planend: editValue,
-      cost: editValue,
-      additional_category: editValue,
-    },
-  });
-  JSGantt.addJSONTask(g, tasks);
-  g.setEditable(true);
-  g.Draw();
-
-  connectedClients[blenderId]["gantt"] = g;
-
-  let printButton = $("<button>", {
-    id: "print-btn-" + blenderId,
-    html: "Print",
-    class: "btn no-print",
-  });
-
-  let printOptions = $("<select>", {
-    id: "print-options-" + blenderId,
-    class: "no-print",
-  });
-
-  $.each(pageSizes, function (index, size) {
-    printOptions.append(
-      $("<option>", {
-        value: size.value,
-        text: size.text,
-      })
-    );
-  });
-
-  printButton.on("click", function () {
-    // make it only the corresponding gantt chart is printed
-    $(".gantt-chart").removeClass("no-print");
-    $(".gantt-chart")
-      .not("#gantt-" + blenderId)
-      .addClass("your-css-class");
-
-    var values = $("#print-options-" + blenderId)
-      .val()
-      .split(",");
-
-    g.setEditable(false);
-    g.setTotalHeight("");
-    g.Draw();
-
-    addEventListener("afterprint", (event) => {
-      g.setEditable(true);
-    },);
-
-
-    let css =
-      "@media print {\n" +
-      "    @page {\n" +
-      "        size: " +
-      values[0] +
-      "mm " +
-      values[1] +
-      "mm;\n" +
-      "    }\n" +
-      "    /* Make all text black */\n" +
-      "    body, p, span, h1, h2, h3, h4, h5, h6, div, a, li, td, th, * {\n" +
-      "        color: black !important;\n" +
-      "    }\n" +
-      "}";
-    g.printChart(values[0], values[1], css);
-    g.setTotalHeight(900);
-    g.Draw();
-  });
-
-  ganttContainer.append(printOptions);
-  ganttContainer.append(printButton);
-}
-
-// Function to update gantt and filename
-function updateGanttElement(blenderId, tasks, workSched, filename) {
-  // update work schedule table
-  const table = $("#workSchedTable-" + blenderId);
-  table.empty();
-  $.each(workSched, (key, value) => {
-    value = value ? value : "null";
-    $("<tr></tr>")
-      .append($("<td></td>").text(key))
-      .append($("<td></td>").text(value))
-      .appendTo(table);
-  });
-
-  // update gantt chart with new data
-  let g = connectedClients[blenderId]["gantt"];
-  g.ClearTasks();
-  g.Draw();
-  JSGantt.addJSONTask(g, tasks);
-  g.Draw();
-
-  $("#title-" + blenderId).text(filename);
-}
-
-// Function to remove gantt element
-function removeGanttElement(blenderId) {
-  $("#container-" + blenderId).remove();
-}
-
-// Utility function to create a tooltip for the gantt chars
-function generateTooltip(task) {
-  var dataObject = task.getDataObject();
-  var numberResources = dataObject.resourceUsage
-    ? dataObject.resourceUsage
-    : "NULL";
-  return `
-  <dl>
-      <dt>Name:</dt><dd>{{pName}}</dd>
-      <dt>Start:</dt><dd>{{pStart}}</dd>
-      <dt>End:</dt><dd>{{pEnd}}</dd>
-      <dt>Duration:</dt><dd>${dataObject.ifcduration}</dd>
-      <dt>Number of Resources:</dt><dd>${numberResources}</dd>
-      <dt>Resources:</dt><dd>{{pRes}}</dd>
-  </dl>
-  `;
-}
-
-// Event handlers for editing gantt table data
-function editValue(list, task, event, cell, column) {
-  console.log("editValue function called with the following parameters:");
-  console.log("list:", list);
-  console.log("task:", task);
-  console.log("event:", event);
-  console.log("cell:", cell);
-  console.log("column:", column);
-
-  const ganttId = task.getGantt()["vDiv"].id;
-  const index = ganttId.indexOf("-") + 1;
-  const blenderId = ganttId.substring(index);
-  const workSchedId = connectedClients[blenderId].workSchedule.id;
-
-  // update data object reprsenting the task
-  const dataObj = task.getDataObject();
-  dataObj[column] = event.target.value;
-  task.setDataObject(dataObj);
-
-  const msg = {
-    sourcePage: "gantt",
-    blenderId: blenderId,
-    operator: {
-      type: "editTask",
-      workScheduleId: workSchedId,
-      taskId: task.getOriginalID(),
-      column: column,
-      value: event.target.value,
-    },
-  };
-  socket.emit("web_operator", msg);
-}
@@ -1,221 +0,0 @@
-// keeps track of blenders connected in form of
-// {shown:bool, filename:string, headers:array}
-const connectedClients = {};
-let socket;
-
-// Document ready function
-$(document).ready(function () {
-  connectSocket();
-});
-
-// Function to connect to Socket.IO server
-function connectSocket() {
-  const url = "ws://localhost:" + SOCKET_PORT + "/web";
-  socket = io(url);
-  console.log("socket: ", socket);
-
-  // Register socket event handlers
-  socket.on("blender_connect", handleBlenderConnect);
-  socket.on("blender_disconnect", handleBlenderDisconnect);
-  socket.on("csv_data", handleCsvData);
-}
-
-// Function to handle 'blender_connect' event
-function handleBlenderConnect(blenderId) {
-  console.log("blender_connect: ", blenderId);
-  if (!connectedClients.hasOwnProperty(blenderId)) {
-    connectedClients[blenderId] = { shown: false, ifc_file: "" };
-  }
-}
-
-// Function to handle 'blender_disconnect' event
-function handleBlenderDisconnect(blenderId) {
-  console.log("blender_disconnect: ", blenderId);
-  if (connectedClients.hasOwnProperty(blenderId)) {
-    delete connectedClients[blenderId];
-    removeTableElement(blenderId);
-  }
-}
-
-// Function to handle 'csv_data' event
-function handleCsvData(data) {
-  const blenderId = data["blenderId"];
-  const csvData = data["data"]["csv_data"];
-  const filename = data["data"]["IFC_File"];
-  console.log(data);
-
-  if (connectedClients.hasOwnProperty(blenderId)) {
-    if (!connectedClients[blenderId].shown) {
-      connectedClients[blenderId] = {
-        shown: true,
-        ifc_file: filename,
-        headers: [],
-      };
-      addTableElement(blenderId, csvData, filename);
-    } else {
-      updateTableElement(blenderId, csvData, filename);
-    }
-  } else {
-    connectedClients[blenderId] = {
-      shown: true,
-      ifc_file: filename,
-      headers: [],
-    };
-    addTableElement(blenderId, csvData, filename);
-  }
-}
-
-// Function to add a new table with data and filename
-function addTableElement(blenderId, csvData, filename) {
-  // store headers of the csv data
-  const firstLine = csvData.indexOf("\n");
-  const csvHeaders = csvData.substring(0, firstLine).split(",");
-  connectedClients[blenderId].headers = csvHeaders;
-
-  console.log(connectedClients[blenderId]);
-  const tableContainer = $("<div></div>")
-    .addClass("table-container")
-    .attr("id", "container-" + blenderId);
-
-  const tableTitle = $("<h3></h3>")
-    .attr("id", "title-" + blenderId)
-    .text(filename)
-    .css("margin-bottom", "10px");
-
-  const tableDiv = $("<div></div>")
-    .addClass("csv-table")
-    .attr("id", "table-" + blenderId);
-
-  tableContainer.append(tableTitle);
-  tableContainer.append(tableDiv);
-  $("#container").append(tableContainer);
-
-  function createHeaderMenu(definitions) {
-    var menu = [];
-
-    for (let column of definitions) {
-      // Create text element for checkbox
-      if (!column.hasOwnProperty("key")) {
-        column.visible = true;
-      }
-      let checkbox = document.createElement("span");
-      checkbox.textContent = column.visible ? "\u2611" : "\u2610"; // ☑ or ☐
-
-      // Build label
-      let label = document.createElement("span");
-      let title = document.createElement("span");
-
-      title.textContent = " " + column.title;
-
-      label.appendChild(checkbox);
-      label.appendChild(title);
-
-      // Create menu item
-      menu.push({
-        label: label,
-        action: function (e) {
-          // Prevent menu closing
-          e.stopPropagation();
-
-          // Toggle current column visibility
-          column.visible = !column.visible;
-          console.log(column.title, column.visible);
-          // Change menu item checkbox
-          if (column.visible) {
-            table.showColumn(column.title);
-            checkbox.textContent = "\u2611"; // ☑
-          } else {
-            table.hideColumn(column.title);
-            checkbox.textContent = "\u2610"; // ☐
-          }
-        },
-      });
-    }
-
-    return menu;
-  }
-
-  var table = new Tabulator("#table-" + blenderId, {
-    height: "400px",
-    resizableColumnGuide: true,
-    index: "GlobalId",
-    data: csvData,
-    importFormat: "csv",
-    autoColumns: true,
-    selectableRows: 1,
-    layout: "fitColumns",
-    autoColumnsDefinitions: function (definitions) {
-      menu = createHeaderMenu(definitions, table);
-      definitions.forEach((column) => {
-        column.visible = true;
-        column.headerMenu = menu;
-      });
-      return definitions;
-    },
-  });
-
-  table.on("rowSelected", function (row) {
-    var index = row.getIndex(); // the guid of the object
-
-    if (!index) {
-      console.log("No Global ID found");
-      return;
-    }
-
-    // table id is usually "table-BlenderId" so blender id is always
-    // after the first 6 characters
-    var tableId = row.getTable().element.id.substr(6);
-
-    const msg = {
-      sourcePage: "csv",
-      blenderId: tableId,
-      operator: {
-        type: "selection",
-        globalId: index,
-      },
-    };
-    socket.emit("web_operator", msg);
-  });
-}
-
-// Function to update table and filename
-function updateTableElement(blenderId, csvData, filename) {
-  // check if the headers are the same
-  // if yes, just replace the data
-  // else, replace the whole data and column definations
-  const firstLine = csvData.indexOf("\n");
-  const newHeaders = csvData.substring(0, firstLine).split(",");
-  const sameHeaders = compareHeaders(
-    connectedClients[blenderId].headers,
-    newHeaders
-  );
-
-  const table = Tabulator.findTable("#table-" + blenderId)[0];
-  if (table) {
-    if (sameHeaders) {
-      table.replaceData(csvData, { importFormat: "csv" });
-    } else {
-      table.setData(csvData);
-      connectedClients[blenderId].headers = newHeaders;
-    }
-    $("#title-" + blenderId).text(filename);
-  }
-}
-
-// Function to remove table element
-function removeTableElement(blenderId) {
-  $("#container-" + blenderId).remove();
-}
-
-// Utility function to compare two csv header
-function compareHeaders(headers1, headers2) {
-  if (headers1.length !== headers2.length) {
-    return false;
-  }
-  for (let i = 0; i < headers1.length; i++) {
-    if (headers1[i] !== headers2[i]) {
-      return false;
-    }
-  }
-  return true;
-}
@@ -1,34 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Web Client</title>
-    <link rel="stylesheet" type="text/css" href="/jsgantt/jsgantt.css" />
-    <link rel="stylesheet" href="/static/css/gantt.css" />
-    <script
-      type="text/javascript"
-      src="https://code.jquery.com/jquery-3.6.0.min.js"
-    ></script>
-    <script
-      type="text/javascript"
-      src="https://cdn.socket.io/4.0.0/socket.io.min.js"
-    ></script>
-    <script type="text/javascript" src="./jsgantt/jsgantt.js"></script>
-    <script>
-      var SOCKET_PORT = {{port}};
-    </script>
-    <script defer src="./static/js/gantt.js"></script>
-  </head>
-  <body>
-    <nav class="no-print">
-      <img src="https://blenderbim.org/assets/images/blender/blender-logo.png" alt="Logo" class="logo" />
-      <ul>
-        <li><a href="/">IFC Data</a></li>
-        <li><a href="/gantt" class="active">Gantt Chart</a></li>
-      </ul>
-      <div class="bottom-bar"></div>
-    </nav>
-    <div id="container"></div>
-  </body>
-</html>
@@ -1,40 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Web Client</title>
-    <link rel="stylesheet" href="/static/css/index.css" />
-    <link
-      rel="stylesheet"
-      href="https://unpkg.com/tabulator-tables/dist/css/tabulator_site_dark.min.css"
-    />
-    <script
-      type="text/javascript"
-      src="https://code.jquery.com/jquery-3.6.0.min.js"
-    ></script>
-    <script
-      type="text/javascript"
-      src="https://unpkg.com/tabulator-tables/dist/js/tabulator.min.js"
-    ></script>
-    <script
-      type="text/javascript"
-      src="https://cdn.socket.io/4.0.0/socket.io.min.js"
-    ></script>
-    <script>
-      var SOCKET_PORT = {{port}};
-    </script>
-    <script defer src="./static/js/index.js"></script>
-  </head>
-  <body>
-    <nav>
-      <img src="https://blenderbim.org/assets/images/blender/blender-logo.png" alt="Logo" class="logo" />
-      <ul>
-        <li><a href="/" class="active">IFC Data</a></li>
-        <li><a href="/gantt">Gantt Chart</a></li>
-      </ul>
-      <div class="bottom-bar"></div>
-    </nav>
-    <div id="container"></div>
-  </body>
-</html>
@@ -1,42 +0,0 @@
-# BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of BlenderBIM Add-on.
-#
-# BlenderBIM Add-on 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.
-#
-# BlenderBIM Add-on 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 BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
-
-import bpy
-from . import ui, prop, operator
-
-classes = (
-    operator.ExecuteBIMTester,
-    operator.BIMTesterPurge,
-    operator.SelectFeature,
-    operator.SelectSteps,
-    operator.SelectBIMTesterIfcFile,
-    operator.RejectElement,
-    operator.ApproveClass,
-    operator.RejectClass,
-    operator.SelectAudited,
-    prop.BimTesterProperties,
-    ui.BIM_PT_qa,
-)
-
-
-def register():
-    bpy.types.Scene.BimTesterProperties = bpy.props.PointerProperty(type=prop.BimTesterProperties)
-
-
-def unregister():
-    del bpy.types.Scene.BimTesterProperties
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .7.10
 .8.0