Merge branch 'v0.8.0' of https://github.com/IfcOpenShell/IfcOpenShell into v0.8.0

.github/workflows/ci-bcf-pypi.yml

@@ -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:

.github/workflows/ci-blenderbim-daily.yml

@@ -6,7 +6,7 @@ on:
       - '.github/workflows/ci-blenderbim-daily.yml'
       - 'src/blenderbim/**'
       - 'src/ifcopenshell-python/ifcopenshell/**'
-      - 'src/bcf/src/bcf/**'
+      - 'src/bcf/bcf/**'
       - 'src/ifcclash/ifcclash/**'
       - 'src/ifccobie/**'
       - 'src/ifcdiff/**'

.github/workflows/ci-blenderbim.yml

@@ -1,5 +1,10 @@
 name: ci-blenderbim
 
+# Differences from ci-blenderbim-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:
 
@@ -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 }}_${{ matrix.pyver }} &&
+          cd src/blenderbim &&
-          cd src/blenderbim_${{ matrix.config.short_name }}_${{ matrix.pyver }} &&
           make dist PLATFORM=${{ matrix.config.short_name }} PYVERSION=${{ matrix.pyver }} IS_STABLE=TRUE
+      - name: Find zip file name
+        id: find_zip
+        run: |
+          filepath=$(ls src/blenderbim/dist/blenderbim_*.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
+          file: ${{ steps.find_zip.outputs.filepath }}
-          asset_name: blenderbim-${{steps.version.outputs.version}}-${{ matrix.pyver }}-${{ matrix.config.short_name }}.zip
+          asset_name: ${{ steps.find_zip.outputs.filename }}
           release_name: "blenderbim-${{steps.version.outputs.version}}"
           tag: "blenderbim-${{steps.version.outputs.version}}"
           overwrite: true

.github/workflows/ci-bsdd-pypi.yaml

@@ -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:

.github/workflows/ci-ifc4d-pypi.yaml

@@ -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:

.github/workflows/ci-ifc5d-pypi.yaml

@@ -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:

.github/workflows/ci-ifccityjson-pypi.yaml

@@ -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:

.github/workflows/ci-ifcclash-pypi.yaml

@@ -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:

.github/workflows/ci-ifccsv-pypi.yaml

@@ -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:

.github/workflows/ci-ifcdiff-pypi.yaml

@@ -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:

.github/workflows/ci-ifcfm-pypi.yaml

@@ -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:

.github/workflows/ci-ifcopenshell-python-pypi.yml

@@ -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:

.github/workflows/ci-ifcpatch-pypi.yaml

@@ -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:

.github/workflows/ci-ifctester-pypi.yml

@@ -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:

src/blenderbim/Makefile

@@ -114,19 +114,18 @@ endif
 
 	mkdir -p build/wheels
 	# Provides IfcOpenShell Python functionality
-	cd ../ifcopenshell-python && make dist PLATFORM=$(PLATFORM)64 PYVERSION=$(PYVERSION) && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifcopenshell-python && make dist PLATFORM=$(PLATFORM)64 PYVERSION=$(PYVERSION) && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../bcf && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../bcf && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifcclash && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifcclash && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifcbimtester && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifctester && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifctester && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifcfm && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifcfm && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../bsdd && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../bsdd && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifcdiff && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifcdiff && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifccsv && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifccsv && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifcpatch && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifcpatch && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifc4d && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifc4d && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifc5d && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifc5d && make dist && cp dist/*.whl ../blenderbim/build/wheels/
+	cd ../ifccityjson && make dist && mv dist/*.whl ../blenderbim/build/wheels/
-	cd ../ifccityjson && make dist && cp dist/*.whl ../blenderbim/build/wheels/
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download GitPython --dest=./wheels
 	# Provides audio playback for costing
 	# This is a REALLY IMPORTANT feature
@@ -252,9 +251,22 @@ endif
 	$(SED) "s/os-arch/$(BLENDER_PLATFORM)/" build/blenderbim/blender_manifest.toml
 
 	# Provides BlenderBIM Add-on functionality
+ifeq ($(IS_STABLE), TRUE)
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/pyproject.toml
+else
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)a$(VERSION_DATE)"/' build/pyproject.toml
+endif
 	cd build && . env/$(VENV_ACTIVATE) && $(PYTHON) -m build
 	cp build/dist/*.whl build/wheels/
+
+	# Safeguard for non-wheel dependencies slipping in.
+	wheels=$$(find build/wheels/* ! -name "*.whl"); \
+	if [ -n "$$wheels" ]; then \
+		echo "Found non-wheel dependencies:"; \
+		echo "$$wheels"; \
+		echo "Error: non-wheel dependencies are not supported by Blender!"; \
+		exit 1; \
+	fi
 	mv build/wheels/*.whl build/blenderbim/wheels/
 
 	# Ugly patch to accomodate MacOS universal builds not being recognized by Blender.
@@ -297,6 +309,27 @@ ifeq ($(PLATFORM), macos)
 	mv "$$prev_whl_name" "$$whl_name";
 endif
 
+	# Safeguard for unhandled universal files.
+	wheels=$$(find build/blenderbim/wheels/*universal2*.whl); \
+	if [ -n "$$wheels" ]; then \
+		echo "Found universal2 wheel files:"; \
+		echo "$$wheels"; \
+		echo "Error: universal2 wheel files are not supported by Blender!"; \
+		exit 1; \
+	fi
+
+ifneq ($(PLATFORM), linux)
+	# Safeguard: in case one of `pip download` will break,
+	# it will produce a linux wheel for non-linux build (our github action machine is using linux).
+	wheels=$$(find build/blenderbim/wheels/*manylinux_*.whl); \
+	if [ -n "$$wheels" ]; then \
+		echo "Found linux wheel files in non-linux build:"; \
+		echo "$$wheels"; \
+		echo "Error: linux wheels are incompatible with build $(PLATFORM)!"; \
+		exit 1; \
+	fi
+endif
+
 	$(PYTHON) scripts/get_wheels.py build/blenderbim/wheels build/blenderbim/blender_manifest.toml
 	rm -rf build/blenderbim/bim/
 	rm -rf build/blenderbim/core/

src/blenderbim/blenderbim/__init__.py

@@ -27,15 +27,16 @@ import sys
 IN_BLENDER = sys.modules.get("bpy", None)
 if IN_BLENDER:
     import bpy
-    import addon_utils
 
 import re
 import platform
 import traceback
 import webbrowser
+import uuid
+import shutil
 from collections import deque
 from pathlib import Path
-from typing import Union, Any
+from typing import Union, Any, Generator
 
 
 last_commit_hash = "8888888"
@@ -52,19 +53,35 @@ def get_last_commit_hash() -> Union[str, None]:
 
 last_error = None
 last_actions: deque = deque(maxlen=10)
+bbim_semver: dict[str, Any] = {}
+
+
+def initialize_bbim_semver():
+    """Initialize `bbim_semver` dictionary.
+
+    Blender doesn't seem to store a full extension version (only major-minor-patch)
+    in `addon_utils.modules()->bl_info['version']`,
+    therefore we just parse it from .toml.
+    """
+    import tomllib
+
+    toml_path = Path(__file__).parent / "blender_manifest.toml"
+    with open(toml_path, "rb") as f:
+        manifest = tomllib.load(f)
+    semver_pattern = r"^(?P<major>0|[1-9]\d*)\.(?P<minor>0|[1-9]\d*)\.(?P<patch>0|[1-9]\d*)(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+(?P<buildmetadata>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$"
+    version_str = manifest["version"]
+    re_version = re.match(semver_pattern, version_str)
+    assert re_version
+    global bbim_semver
+    bbim_semver = re_version.groupdict()
+    bbim_semver["version"] = version_str
+
+
+initialize_bbim_semver()
 
 
 def get_debug_info():
-    version = ".".join(
+    bbim_version = bbim_semver["version"]
-        [
-            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(),
@@ -74,7 +91,7 @@ def get_debug_info():
         "machine": platform.machine(),
         "processor": platform.processor(),
         "blender_version": bpy.app.version_string,
-        "blenderbim_version": version,
+        "blenderbim_version": bbim_version,
         "blenderbim_commit_hash": get_last_commit_hash(),
         "last_actions": last_actions,
         "last_error": last_error,
@@ -92,6 +109,68 @@ def format_debug_info(info: dict):
     return text.strip()
 
 
+def get_binaries(path: Path) -> Generator[Path, None, None]:
+    yield from path.glob("**/*.pyd")
+    yield from path.glob("**/*.dll")
+    # pyradiance is using .so files on windows for some reason.
+    yield from path.glob("**/*.so")
+
+
+def safe_link_dlls() -> None:
+    # Blender 4.2+ has a problem on Windows for disabling/enabling/reinstalling extensions
+    # with loaded binary dependencies (on Windows you can't remove a binary if it's loaded by some program).
+    # To avoid this issue we temporary hard link dlls to our temp directory on unregister()
+    # (unregister is executed before Blender will try to uninstall dependencies and the issue will arise).
+    # Then, Blender won't have a problem unlinking unloaded dlls as they are still linked somewhere.
+    # On register() we clean up our temp directory with binaries.
+    #
+    # TODO: If user uninstalls BlenderBIM to never use it again, temporary directory won't be cleared.
+    #
+    # See: https://projects.blender.org/blender/blender/issues/125049
+    import bpy
+
+    ext_path = Path(bpy.utils.user_resource("EXTENSIONS"))
+    local_path = ext_path / ".local"
+
+    # We use random hash subfolder as user may try to enable/disable addon multiple times.
+    random_hash = uuid.uuid4().hex[:8]
+    temp_local = ext_path / ".local_temp" / random_hash
+    temp_local.mkdir(parents=True)
+
+    for filepath in get_binaries(local_path):
+        dest_path = temp_local / filepath.relative_to(local_path)
+        dest_path.parent.mkdir(exist_ok=True, parents=True)
+        os.link(filepath, dest_path)
+
+
+def clean_up_dlls_safe_links() -> None:
+    import bpy
+
+    ext_path = Path(bpy.utils.user_resource("EXTENSIONS"))
+    temp_path = ext_path / ".local_temp"
+    if not temp_path.exists():
+        return
+
+    for filepath in get_binaries(temp_path):
+        try:
+            os.unlink(filepath)
+        except PermissionError:
+            pass
+
+    def is_empty_directory(directory: Path) -> bool:
+        return not any(directory.iterdir())
+
+    def remove_empty_folders(folder: Path) -> None:
+        for subfolder in folder.iterdir():
+            if subfolder.is_dir():
+                remove_empty_folders(subfolder)
+
+        if is_empty_directory(folder):
+            folder.rmdir()
+
+    remove_empty_folders(temp_path)
+
+
 if IN_BLENDER:
 
     def get_binary_info() -> dict[str, Any]:
@@ -132,8 +211,7 @@ if IN_BLENDER:
 
         # We can't just use __file__ as blenderbim/__init__.py is typically not symlinked
         # as Blender have errors symlinking main addon package file.
-        path = Path(__file__).parent / "bim" / "__init__.py"
+        path = Path(__file__).resolve().parent
-        path = path.resolve().parent
         repo = git.Repo(str(path), search_parent_directories=True)
         last_commit_hash = repo.head.object.hexsha
     except:
@@ -154,11 +232,17 @@ if IN_BLENDER:
         ifcopenshell.api.add_pre_listener("*", "action_logger", log_api)
 
         def register():
+            if platform.system() == "Windows":
+                clean_up_dlls_safe_links()
+
             import blenderbim.bim
 
             blenderbim.bim.register()
 
         def unregister():
+            if platform.system() == "Windows":
+                safe_link_dlls()
+
             import blenderbim.bim
 
             blenderbim.bim.unregister()
@@ -229,15 +313,15 @@ if IN_BLENDER:
                 bbim_version = info["blenderbim_version"]
                 py_tag = py.replace(".", "")
                 if "Linux" in info["os"]:
-                    os = "linux"
+                    os = "linux-x64"
                 elif "Darwin" in info["os"]:
                     if "arm64" in info["machine"]:
-                        os = "macosm1"
+                        os = "macos-arm64"
                     else:
-                        os = "macos"
+                        os = "macos-x64"
                 else:
-                    os = "win"
+                    os = "windows-x64"
-                op.uri = f"https://github.com/IfcOpenShell/IfcOpenShell/releases/download/blenderbim-{bbim_version}/blenderbim-{bbim_version}-py{py_tag}-{os}.zip"
+                op.uri = f"https://github.com/IfcOpenShell/IfcOpenShell/releases/download/blenderbim-{bbim_version}/blenderbim_py{py_tag}-{bbim_version}-{os}.zip"
 
         class OpenUri(bpy.types.Operator):
             bl_idname = "bim.open_uri"

src/blenderbim/blenderbim/bim/__init__.py

@@ -196,7 +196,6 @@ for mod in modules.values():
 addon_keymaps = []
 icons = None
 is_registering = False
-last_commit_hash = "8888888"
 original_scene_panels_polls: dict[bpy.types.Panel, Union[Callable, None]] = dict()
 
 

src/blenderbim/blenderbim/bim/data/webui/sioserver.py

@@ -1,3 +1,11 @@
+import sys
+import os
+import webbrowser
+
+blenderbim_lib_path = os.environ.get("blenderbim_lib_path")
+if blenderbim_lib_path:
+    sys.path.insert(0, blenderbim_lib_path)
+
 import argparse
 from aiohttp import web
 import socketio
@@ -21,6 +29,8 @@ sio = socketio.AsyncServer(
 app = web.Application()
 sio.attach(app)
 
+
+# represents a caching for blender messages
 blender_messages = {}
 
 
@@ -31,6 +41,8 @@ class WebNamespace(socketio.AsyncNamespace):
 
     async def on_connect(self, sid, environ):
         print(f"Web client connected: {sid}")
+        if blender_messages:
+            await self.send_cached_messages(sid)
 
     async def on_disconnect(self, sid):
         print(f"Web client disconnected: {sid}")
@@ -43,6 +55,14 @@ class WebNamespace(socketio.AsyncNamespace):
             room=data["blenderId"],
         )
 
+    async def send_cached_messages(self, sid):
+        # Send cached messages to the connected web client
+        for blenderId, messages in blender_messages.items():
+            if "csv_data" in messages:
+                await self.emit("csv_data", {"blenderId": blenderId, "data": messages["csv_data"]}, room=sid)
+            if "gantt_data" in messages:
+                await self.emit("gantt_data", {"blenderId": blenderId, "data": messages["gantt_data"]}, room=sid)
+
 
 # Blender namespace
 class BlenderNamespace(socketio.AsyncNamespace):
@@ -65,7 +85,7 @@ class BlenderNamespace(socketio.AsyncNamespace):
     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")
+        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}")
@@ -99,10 +119,15 @@ async def gantt(request):
     return web.Response(text=html_content, content_type="text/html")
 
 
+async def open_web_browser(app):
+    webbrowser.open(f"http://127.0.0.1:{sio_port}/")
+
+
 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")
+app.on_startup.append(open_web_browser)
 
 
 def main():

src/blenderbim/blenderbim/bim/data/webui/static/css/gantt.css

@@ -1,19 +1,65 @@
 :root {
+    --font-family: Arial, sans-serif;
+    --margin-small: 0.625rem;
+    --margin-medium: 1.25rem;
+    --margin-large: 2.5rem;
+    --padding-small: 0.125rem;
+    --padding-medium: 1rem;
+    --font-size-small: 1rem;
+    --font-size-large: 1.2rem;
+    --logo-height: 2.5rem;
+    --folder-collapse-font-size: 0.75rem;
+    --folder-collapse-font-family: Courier, "Courier New", monospace;
+    --box-shadow: 0 0 0.7rem #5f5f5f66;
+}
+
+:root.dark {
     color-scheme: dark;
+    --bg-color: #252525;
+    --primary-text-color: #e0e0e0;
+    --secondary-text-color: #c7c7c7;
+    --nav-bg-color: #121212;
+    --nav-border-color: #25682a;
+    --nav-link-color: #fff;
+    --nav-link-hover-color: #3fb449;
+    --warning-color: #FFDB8F;
+    --border-color: #464444;
+    --hover-bg-color: #3a3a3a;
+    --highlight-color: #009136;
+    --task-complete-bg-color: #777777;
+    --milestone-border-color: #ffffff;
+    --group-item-bg-color: #4b4b4b;
+    --input-bg-color: #3b3b3b;
+    --input-border-color: #000;
+}
+
+:root.light {
+    color-scheme: light;
+    --bg-color: #ffffff;
+    --primary-text-color: #000000;
+    --nav-bg-color: #f8f8f8;
+    --nav-border-color: #cccccc;
+    --nav-link-color: #000000;
+    --nav-link-hover-color: #38a63d;
+    --warning-color: #FF4500;
+}
+
+html {
+    font-size: var(--base-font-size);
 }
 
 body {
-    background-color: #252525;
+    background-color: var(--bg-color);
-    color: #e0e0e0;
+    color: var(--primary-text-color);
     margin: 0;
-    font-family: Arial, sans-serif;
+    font-family: var(--font-family);
 }
 
 #container {
-    margin-top: 20px;
+    margin-top: var(--margin-medium);
-    margin-left: 10px;
+    margin-left: var(--margin-small);
-    margin-right: 10px;
+    margin-right: var(--margin-small);
-    margin-bottom: 20px;
+    margin-bottom: var(--margin-medium);
 }
 
 h3 {
@@ -21,79 +67,89 @@ h3 {
 }
 
 nav {
-    background-color: #121212;
+    background-color: var(--nav-bg-color);
-    padding: 1em 0;
+    padding: var(--padding-medium) 0;
     display: flex;
     align-items: center;
     position: relative;
+    border-bottom: 2px solid var(--nav-border-color);
 }
 
 nav .logo {
-    margin-left: 40px;
+    margin-left: var(--margin-large);
-    height: 40px;
+    height: var(--logo-height);
-    /* Adjust height as needed */
 }
 
 nav ul {
     list-style-type: none;
     margin: 0;
-    margin-left: 1px;
+    margin-left: 0.0625rem;
     display: flex;
     flex-grow: 1;
     justify-content: center;
 }
 
 nav ul li {
-    margin-right: 50px;
+    margin-right: 3.125rem;
 }
 
 nav ul li a {
     text-decoration: none;
-    color: #fff;
+    color: var(--nav-link-color);
-    font-size: 1.2em;
+    font-size: var(--font-size-large);
 }
 
 nav ul li a:hover,
 nav ul li a.active {
-    color: #3fb449;
+    color: var(--nav-link-hover-color);
 }
 
-nav .bottom-bar {
+.warning {
-    position: absolute;
+    color: var(--warning-color);
-    bottom: 0;
+    margin-bottom: var(--margin-small);
-    left: 0;
+    padding: var(--padding-small);
-    width: 100%;
+    display: none;
-    height: 2px;
-    background-color: #25682a;
 }
 
 .table-description {
-    margin-bottom: 1rem;
+    margin-bottom: var(--margin-medium);
     width: 50%;
     background-color: transparent;
     border-collapse: collapse;
     border-spacing: 0;
-    border-color: #464444;
+    border-color: var(--border-color);
-    border: 1px solid #464444;
+    border: 1px solid var(--border-color);
     border-radius: 0.25rem;
-    box-shadow: 0 0 0.7rem rgba(95, 95, 95, 0.4);
+    box-shadow: var(--box-shadow);
     text-align: center;
 }
 
 .table-description tr {
     display: table-row;
-    border-bottom: 1px solid #464444;
+    border-bottom: 1px solid var(--border-color);
+}
+
+#toggle-theme {
+    border: none;
+    background: none;
+    cursor: pointer;
+    font-size: var(--font-size-large);
+    margin-right: var(--margin-medium);
+}
+
+#toggle-theme:focus {
+    outline: none;
 }
 
 .gantt-info {
     margin: 0.5rem;
-    font-size: 1rem;
+    font-size: var(--font-size-small);
     font-weight: bold;
 }
 
 .btn {
     margin: 0.5rem;
-    font-size: 1rem;
+    font-size: var(--font-size-small);
     cursor: pointer;
 }
 
@@ -104,86 +160,76 @@ nav .bottom-bar {
 }
 
 /* ------------ Overwriting JSGantt CSS rules ------------ */
-
+:root.dark div.gantt {
-div.gantt {
+    background-color: var(--bg-color);
-    background-color: #252525;
+    color: var(--secondary-text-color);
-    color: #c7c7c7;
 }
 
-.gantt table {
+:root.dark .gantt table,
-    border-color: #464444;
+:root.dark .gantt td {
-    ;
+    border-color: var(--border-color);
-}
-
-.gantt td {
-    border-color: #464444;
-    ;
 }
 
 /* Headings and cell defaults */
-.gmajorheading,
+:root.dark .gmajorheading,
-.gminorheading,
+:root.dark .gminorheading,
-.gminorheadingwkend,
+:root.dark .gminorheadingwkend,
-.gtaskcell,
+:root.dark .gtaskcell,
-.gtaskcellcurrent,
+:root.dark .gtaskcellcurrent,
-.gtaskcellwkend,
+:root.dark .gtaskcellwkend,
-.gname,
+:root.dark .gname,
-.ggroupitem,
+:root.dark .ggroupitem,
-.gtaskheading {
+:root.dark .gtaskheading {
-    background-color: #252525;
+    background-color: var(--bg-color);
-    border-color: #464444;
+    border-color: var(--border-color);
-    ;
 }
 
-.gtaskheading,
+:root.dark .gtaskheading,
-.gname,
+:root.dark .gname,
-.gtaskname,
+:root.dark .gtaskname,
-.gres,
+:root.dark .gres,
-.gdur,
+:root.dark .gdur,
-.gcomp,
+:root.dark .gcomp,
-.gstartdate,
+:root.dark .gstartdate,
-.gplanstartdate,
+:root.dark .gplanstartdate,
-.gplanenddate,
+:root.dark .gplanenddate,
-.gcost,
+:root.dark .gcost,
-.gchartlbl,
+:root.dark .gchartlbl,
-.gcontainercol,
+:root.dark .gcontainercol,
-.genddate {
+:root.dark .genddate {
-    color: #c7c7c7;
+    color: var(--secondary-text-color);
-    border-color: #464444;
+    border-color: var(--border-color);
-    ;
 }
 
-.gtaskname>div {
+:root.dark .gtaskname>div {
-    color: #c7c7c7;
+    color: var(--secondary-text-color);
 }
 
-.gtaskbarcontainer.gplan,
+:root.dark .gtaskbarcontainer.gplan,
-.gchartlbl.gcontainercol {
+:root.dark .gchartlbl.gcontainercol {
-    background: #252525;
+    background: var(--bg-color);
-    border-color: #464444;
+    border-color: var(--border-color);
 }
 
-.gtaskname div,
+:root.dark .gtaskname div,
-.gtaskheading div,
+:root.dark .gtaskheading div,
-.gtaskname span {
+:root.dark .gtaskname span {
-    color: #c7c7c7;
+    color: var(--secondary-text-color);
 }
 
-
+:root.dark .gtasklist,
-.gtasklist,
+:root.dark .gadditional {
-.gadditional {
+    border: var(--border-color) 1px solid;
-    border: #464444 1px solid
 }
 
-.gchartgrid {
+:root.dark .gchartgrid {
-    background-color: #252525;
+    background-color: var(--bg-color);
 }
 
-.glistgrid,
+:root.dark .glistgrid,
-.glistlbl {
+:root.dark .glistlbl {
-    background-color: #252525;
+    background-color: var(--bg-color);
-    border-color: #464444;
+    border-color: var(--border-color);
-    ;
 }
 
 /* .gTaskInfo {
@@ -193,88 +239,81 @@ div.gantt {
 } */
 
 /* Dark mode scrollbar */
-.frame::-webkit-scrollbar-thumb {
+:root.dark .frame::-webkit-scrollbar-thumb,
-    background-color: #252525;
+:root.dark .frame::-webkit-scrollbar-track {
-}
+    background-color: var(--bg-color);
-
-.frame::-webkit-scrollbar-track {
-    background-color: #252525;
 }
 
 /* Highlight row */
-.gitemhighlight td {
+:root.dark .gitemhighlight td {
-    background-color: #009136;
+    background-color: var(--highlight-color);
-    color: #ffffff;
+    color: var(--nav-link-color);
 }
 
 /* Differentiate Group, Milestone and Ordinary task items (applied to row) */
-.ggroupitem {
+:root.dark .ggroupitem {
-    background-color: #252525;
+    background-color: var(--bg-color);
     font-weight: bold;
-    border-color: #464444;
+    border-color: var(--border-color);
 }
 
-.gmileitem,
+:root.dark .gmileitem,
-.glineitem {
+:root.dark .glineitem {
-    background-color: #252525;
+    background-color: var(--bg-color);
 }
 
 /* Task bar caption text styles */
-.gmilecaption,
+:root.dark .gmilecaption,
-.ggroupcaption,
+:root.dark .ggroupcaption,
-.gcaption {
+:root.dark .gcaption {
-    color: #ffffff;
+    color: var(--nav-link-color);
 }
 
 /* Task complete %age bar */
-.gtaskcomplete {
+:root.dark .gtaskcomplete {
-    background-color: #777777;
+    background-color: var(--task-complete-bg-color);
 }
 
 /* Milestones */
-.gmdtop {
+:root.dark .gmdtop,
-    border-bottom: 5px solid #ffffff;
+:root.dark .gmdbottom {
+    border-bottom: 5px solid var(--milestone-border-color);
 }
 
-.gmdbottom {
+:root.dark .gfoldercollapse {
-    border-top: 5px solid #ffffff;
+    color: var(--secondary-text-color);
-}
-
-.gfoldercollapse {
-    color: #c7c7c7;
     cursor: pointer;
     font-weight: bold;
-
+    font-size: var(--folder-collapse-font-size);
-    font-size: 12px;
+    font-family: var(--folder-collapse-font-family);
-    font-family: Courier, "Courier New", monospace;
 }
 
 /* Highlight for collapsible row */
-.gname.ggroupitem {
+:root.dark .gname.ggroupitem {
-    background-color: rgb(75, 75, 75);
+    background-color: var(--group-item-bg-color);
 }
 
 /* Form label and selected highlighting */
-.gformlabel {
+:root.dark .gformlabel {
-    background-color: #2e2e2e;
+    background-color: var(--formlabel-bg-color);
-    color: #c7c7c7;
+    color: var(--secondary-text-color);
-    border: #4a4a4a 1px solid;
+    border: var(--formlabel-border-color) 1px solid;
 }
 
-span.gformlabel:hover {
+:root.dark span.gformlabel:hover {
-    background-color: #3a3a3a;
+    background-color: var(--hover-bg-color);
-    border-color: #565656;
+    border-color: var(--border-color);
 }
 
-span.gselected {
+:root.dark span.gselected {
-    background-color: #565656;
+    background-color: var(--formlabel-selected-bg-color);
-    border-color: #777777;
+    border-color: var(--task-complete-bg-color);
-    color: #ffffff;
+    color: var(--nav-link-color);
 }
 
-.gantt-inputtable {
+:root.dark .gantt-inputtable {
-    background-color: #3b3b3b;
+    background-color: var(--input-bg-color);
     box-sizing: border-box;
-    border: 1px solid #000;
+    border: 1px solid var(--input-border-color);
-    color: #c7c7c7;
+    color: var(--secondary-text-color);
 }

src/blenderbim/blenderbim/bim/data/webui/static/css/index.css

@@ -1,27 +1,60 @@
 :root {
+    --font-family: Arial, sans-serif;
+    --margin-small: 0.625rem;
+    --margin-medium: 1.25rem;
+    --margin-large: 2.5rem;
+    --padding-small: 0.125rem;
+    --padding-medium: 1rem;
+    --font-size-large: 1.2rem;
+    --logo-height: 2.5rem;
+}
+
+:root.dark {
     color-scheme: dark;
+    --bg-color: #252525;
+    --text-color: #e0e0e0;
+    --nav-bg-color: #121212;
+    --nav-border-color: #25682a;
+    --nav-link-color: #fff;
+    --nav-link-hover-color: #3fb449;
+    --warning-color: #FFDB8F;
+}
+
+:root.light {
+    color-scheme: light;
+    --bg-color: #ffffff;
+    --text-color: #000000;
+    --nav-bg-color: #f8f8f8;
+    --nav-border-color: #cccccc;
+    --nav-link-color: #000000;
+    --nav-link-hover-color: #38a63d;
+    --warning-color: #FF4500;
+}
+
+html {
+    font-size: var(--base-font-size);
 }
 
 body {
-    background-color: #252525;
+    background-color: var(--bg-color);
-    color: #e0e0e0;
+    color: var(--text-color);
     margin: 0;
-    font-family: Arial, sans-serif;
+    font-family: var(--font-family);
 }
 
 #container {
-    margin-top: 20px;
+    margin-top: var(--margin-medium);
-    margin-left: 10px;
+    margin-left: var(--margin-small);
-    margin-right: 10px;
+    margin-right: var(--margin-small);
-    margin-bottom: 20px
+    margin-bottom: var(--margin-medium);
 }
 
 .table-container {
-    margin-bottom: 40px;
+    margin-bottom: var(--margin-large);
 }
 
 .csv-table {
-    margin-top: 10px;
+    margin-top: var(--margin-small);
 }
 
 h3 {
@@ -29,48 +62,71 @@ h3 {
 }
 
 nav {
-    background-color: #121212;
+    background-color: var(--nav-bg-color);
-    padding: 1em 0;
+    padding: var(--padding-medium) 0;
     display: flex;
     align-items: center;
     position: relative;
+    border-bottom: 2px solid var(--nav-border-color);
 }
 
 nav .logo {
-    margin-left: 40px;
+    margin-left: var(--margin-large);
-    height: 40px;
+    height: var(--logo-height);
-    /* Adjust height as needed */
 }
 
 nav ul {
     list-style-type: none;
     margin: 0;
-    margin-left: 1px;
+    margin-left: 0.0625rem;
     display: flex;
     flex-grow: 1;
     justify-content: center;
 }
 
 nav ul li {
-    margin-right: 50px;
+    margin-right: 3.125rem;
 }
 
 nav ul li a {
     text-decoration: none;
-    color: #fff;
+    color: var(--nav-link-color);
-    font-size: 1.2em;
+    font-size: var(--font-size-large);
 }
 
 nav ul li a:hover,
 nav ul li a.active {
-    color: #3fb449;
+    color: var(--nav-link-hover-color);
 }
 
-nav .bottom-bar {
+.warning {
-    position: absolute;
+    color: var(--warning-color);
-    bottom: 0;
+    margin-bottom: var(--margin-small);
-    left: 0;
+    padding: var(--padding-small);
-    width: 100%;
+    display: none;
-    height: 2px;
+}
-    background-color: #25682a;
+
+#toggle-theme {
+    border: none;
+    background: none;
+    cursor: pointer;
+    font-size: var(--font-size-large);
+    margin-right: var(--margin-medium);
+}
+
+#toggle-theme:focus {
+    outline: none;
+}
+
+/* ------------ Overwriting Tabulator CSS rules ------------ */
+
+:root.light .tabulator-header,
+:root.light .tabulator .tabulator-header .tabulator-col {
+    background: var(--nav-bg-color) !important;
+    color: var(--text-color);
+}
+
+:root.light .tabulator {
+    border-top: 1px solid #222;
+    border-bottom: 2px solid #222;
 }

src/blenderbim/blenderbim/bim/data/webui/static/js/gantt.js

@@ -19,6 +19,12 @@ const pageSizes = [
 
 // Document ready function
 $(document).ready(function () {
+  var systemTheme = window.matchMedia("(prefers-color-scheme: light)").matches
+    ? "light"
+    : "dark";
+  var theme = localStorage.getItem("theme") || systemTheme;
+  setTheme(theme);
+
   connectSocket();
 });
 
@@ -32,6 +38,7 @@ function connectSocket() {
   socket.on("blender_connect", handleBlenderConnect);
   socket.on("blender_disconnect", handleBlenderDisconnect);
   socket.on("gantt_data", handleGanttData);
+  socket.on("default_data", handleDefaultData);
 }
 
 // Function to handle 'blender_connect' event
@@ -61,7 +68,7 @@ function handleGanttData(data) {
 
   console.log(data);
 
-  const filename = data["data"]["IFC_File"];
+  const filename = data["data"]["ifc_file"];
   const ganttTasks = data["data"]["gantt_data"]["tasks"];
   const ganttWorkSched = data["data"]["gantt_data"]["work_schedule"];
   // const ganttWorkSched = {};
@@ -89,6 +96,13 @@ function handleGanttData(data) {
   }
 }
 
+function handleDefaultData(data) {
+  const blenderId = data["blenderId"];
+  const isDirty = data["data"]["is_dirty"];
+  showWarning(blenderId, isDirty);
+  console.log(data);
+}
+
 // Function to add a new gantt with data and filename
 function addGanttElement(blenderId, tasks, workSched, filename) {
   const ganttContainer = $("<div></div>")
@@ -101,6 +115,13 @@ function addGanttElement(blenderId, tasks, workSched, filename) {
     .addClass("no-print")
     .css("margin-bottom", "10px");
 
+  const warning = $("<div></div>")
+    .attr("id", "warning-" + blenderId)
+    .html(
+      "&#9888; Warning: This Gantt Chart may contain outdated data due to recent changes in Blender."
+    )
+    .addClass("warning no-print");
+
   const workSchedDiv = $("<div></div>").attr("id", "workSched" + blenderId);
 
   const scheduleTable = $("<table></table>")
@@ -148,6 +169,7 @@ function addGanttElement(blenderId, tasks, workSched, filename) {
   workSchedDiv.append(scheduleTable);
 
   ganttContainer.append(ganttTitle);
+  ganttContainer.append(warning);
   ganttContainer.append(workSchedDiv);
   ganttContainer.append(ganttInfoDiv);
   ganttContainer.append(ganttDiv);
@@ -233,8 +255,7 @@ function addGanttElement(blenderId, tasks, workSched, filename) {
 
     addEventListener("afterprint", (event) => {
       g.setEditable(true);
-    },);
+    });
-
 
     let css =
       "@media print {\n" +
@@ -280,6 +301,7 @@ function updateGanttElement(blenderId, tasks, workSched, filename) {
   g.Draw();
 
   $("#title-" + blenderId).text(filename);
+  $("#warning-" + blenderId).css("display", "none");
 }
 
 // Function to remove gantt element
@@ -287,6 +309,10 @@ function removeGanttElement(blenderId) {
   $("#container-" + blenderId).remove();
 }
 
+function showWarning(blenderId, isDirty) {
+  $("#warning-" + blenderId).css("display", "block");
+}
+
 // Utility function to create a tooltip for the gantt chars
 function generateTooltip(task) {
   var dataObject = task.getDataObject();
@@ -337,3 +363,22 @@ function editValue(list, task, event, cell, column) {
   };
   socket.emit("web_operator", msg);
 }
+
+function setTheme(theme) {
+  if (theme === "light") {
+    $("html").removeClass("dark").addClass("light");
+    $("#toggle-theme").html('<i class="fas fa-sun"></i>');
+  } else {
+    $("html").removeClass("light").addClass("dark");
+    $("#toggle-theme").html('<i class="fas fa-moon"></i>');
+  }
+  localStorage.setItem("theme", theme);
+}
+
+function toggleTheme() {
+  if ($("html").hasClass("dark")) {
+    setTheme("light");
+  } else {
+    setTheme("dark");
+  }
+}

src/blenderbim/blenderbim/bim/data/webui/static/js/index.js

@@ -5,6 +5,12 @@ let socket;
 
 // Document ready function
 $(document).ready(function () {
+  var systemTheme = window.matchMedia("(prefers-color-scheme: light)").matches
+    ? "light"
+    : "dark";
+  var theme = localStorage.getItem("theme") || systemTheme;
+  setTheme(theme);
+
   connectSocket();
 });
 
@@ -18,6 +24,7 @@ function connectSocket() {
   socket.on("blender_connect", handleBlenderConnect);
   socket.on("blender_disconnect", handleBlenderDisconnect);
   socket.on("csv_data", handleCsvData);
+  socket.on("default_data", handleDefaultData);
 }
 
 // Function to handle 'blender_connect' event
@@ -41,7 +48,7 @@ function handleBlenderDisconnect(blenderId) {
 function handleCsvData(data) {
   const blenderId = data["blenderId"];
   const csvData = data["data"]["csv_data"];
-  const filename = data["data"]["IFC_File"];
+  const filename = data["data"]["ifc_file"];
   console.log(data);
 
   if (connectedClients.hasOwnProperty(blenderId)) {
@@ -65,6 +72,13 @@ function handleCsvData(data) {
   }
 }
 
+function handleDefaultData(data) {
+  const blenderId = data["blenderId"];
+  const isDirty = data["data"]["is_dirty"];
+  showWarning(blenderId, isDirty);
+  console.log(data);
+}
+
 // Function to add a new table with data and filename
 function addTableElement(blenderId, csvData, filename) {
   // store headers of the csv data
@@ -82,11 +96,19 @@ function addTableElement(blenderId, csvData, filename) {
     .text(filename)
     .css("margin-bottom", "10px");
 
+  const warning = $("<div></div>")
+    .attr("id", "warning-" + blenderId)
+    .html(
+      "&#9888; Warning: This table may contain outdated data due to recent changes in Blender."
+    )
+    .addClass("warning");
+
   const tableDiv = $("<div></div>")
     .addClass("csv-table")
     .attr("id", "table-" + blenderId);
 
   tableContainer.append(tableTitle);
+  tableContainer.append(warning);
   tableContainer.append(tableDiv);
   $("#container").append(tableContainer);
 
@@ -199,6 +221,7 @@ function updateTableElement(blenderId, csvData, filename) {
       connectedClients[blenderId].headers = newHeaders;
     }
     $("#title-" + blenderId).text(filename);
+    $("#warning-" + blenderId).css("display", "none");
   }
 }
 
@@ -207,6 +230,10 @@ function removeTableElement(blenderId) {
   $("#container-" + blenderId).remove();
 }
 
+function showWarning(blenderId, isDirty) {
+  $("#warning-" + blenderId).css("display", "block");
+}
+
 // Utility function to compare two csv header
 function compareHeaders(headers1, headers2) {
   if (headers1.length !== headers2.length) {
@@ -219,3 +246,31 @@ function compareHeaders(headers1, headers2) {
   }
   return true;
 }
+
+function setTheme(theme) {
+  var stylesheet = $("#tabulator-stylesheet");
+  if (theme === "light") {
+    stylesheet.attr(
+      "href",
+      "https://unpkg.com/tabulator-tables/dist/css/tabulator_site.min.css"
+    );
+    $("html").removeClass("dark").addClass("light");
+    $("#toggle-theme").html('<i class="fas fa-sun"></i>');
+  } else {
+    stylesheet.attr(
+      "href",
+      "https://unpkg.com/tabulator-tables/dist/css/tabulator_site_dark.min.css"
+    );
+    $("html").removeClass("light").addClass("dark");
+    $("#toggle-theme").html('<i class="fas fa-moon"></i>');
+  }
+  localStorage.setItem("theme", theme);
+}
+
+function toggleTheme() {
+  if ($("html").hasClass("dark")) {
+    setTheme("light");
+  } else {
+    setTheme("dark");
+  }
+}

src/blenderbim/blenderbim/bim/data/webui/templates/gantt.html

@@ -1,11 +1,15 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="en" class="dark">
   <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" />
+    <link
+      rel="stylesheet"
+      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.6.0/css/all.min.css"
+    />
     <script
       type="text/javascript"
       src="https://code.jquery.com/jquery-3.6.0.min.js"
@@ -22,12 +26,18 @@
   </head>
   <body>
     <nav class="no-print">
-      <img src="https://blenderbim.org/assets/images/blender/blender-logo.png" alt="Logo" class="logo" />
+      <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>
+      <button id="toggle-theme" onclick="toggleTheme()">
+        <i class="fas fa-moon"></i>
+      </button>
     </nav>
     <div id="container"></div>
   </body>

src/blenderbim/blenderbim/bim/data/webui/templates/index.html

@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="en" class="dark">
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
@@ -7,8 +7,13 @@
     <link rel="stylesheet" href="/static/css/index.css" />
     <link
       rel="stylesheet"
+      id="tabulator-stylesheet"
       href="https://unpkg.com/tabulator-tables/dist/css/tabulator_site_dark.min.css"
     />
+    <link
+      rel="stylesheet"
+      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.6.0/css/all.min.css"
+    />
     <script
       type="text/javascript"
       src="https://code.jquery.com/jquery-3.6.0.min.js"
@@ -28,12 +33,18 @@
   </head>
   <body>
     <nav>
-      <img src="https://blenderbim.org/assets/images/blender/blender-logo.png" alt="Logo" class="logo" />
+      <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>
+      <button id="toggle-theme" onclick="toggleTheme()">
+        <i class="fas fa-moon"></i>
+      </button>
     </nav>
     <div id="container"></div>
   </body>

src/blenderbim/blenderbim/bim/export_ifc.py

@@ -167,21 +167,6 @@ class IfcExporter:
     def get_application_name(self) -> str:
         return "BlenderBIM"
 
-    def get_application_version(self) -> str:
-        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]
-            ]
-        )
-        if commit_hash := tool.Blender.get_last_commit_hash():
-            version += f"-{commit_hash}"
-        return version
-
 
 class IfcExportSettings:
     def __init__(self):

src/blenderbim/blenderbim/bim/handler.py

@@ -222,7 +222,7 @@ def redo_post(scene):
 
 def get_application(ifc: ifcopenshell.file) -> ifcopenshell.entity_instance:
     # TODO: cache this for even faster application retrieval. It honestly makes a difference on long scripts.
-    version = get_application_version()
+    version = tool.Blender.get_blenderbim_version()
     for element in ifc.by_type("IfcApplication"):
         if element.ApplicationIdentifier == "BlenderBIM" and element.Version == version:
             return element
@@ -248,19 +248,6 @@ def get_user(ifc: ifcopenshell.file) -> Union[ifcopenshell.entity_instance, None
         return pao
 
 
-def get_application_version() -> str:
-    return ".".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]
-        ]
-    )
-
-
 def viewport_shading_changed_callback(area):
     shading = area.spaces.active.shading.type
     if shading == "RENDERED":

src/blenderbim/blenderbim/bim/module/augin/operator.py

@@ -26,6 +26,7 @@ import requests
 import tempfile
 import datetime
 import addon_utils
+import blenderbim.tool as tool
 
 
 class AuginLogin(bpy.types.Operator):
@@ -77,16 +78,7 @@ class AuginCreateNewModel(bpy.types.Operator):
         props.project_filename = "BBM{}{}".format(
             datetime.datetime.now().strftime("%Y%m%d%H%M%S"), "".join(random.choice(chars) for _ in range(6))
         )
-        addon_version = ".".join(
+        addon_version = tool.Blender.get_blenderbim_version()
-            [
-                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]
-            ]
-        )
 
         payload = {
             "user_token": props.token,

src/blenderbim/blenderbim/bim/module/csv/operator.py

@@ -254,9 +254,10 @@ class ExportIfcCsv(bpy.types.Operator):
             schedule_creator = scheduler.Scheduler()
             schedule_creator.schedule(self.filepath, tool.Drawing.get_path_with_ext(self.filepath, "svg"))
         if props.format == "web":
-            tool.Web.send_webui_data(
+            if not context.scene.WebProperties.is_running:
-                extra_data=ifc_csv.dataframe.to_csv(index=False), extra_data_key="csv_data", event="csv_data"
+                bpy.ops.bim.connect_websocket_server()
-            )
+            tool.Web.send_webui_data(data=ifc_csv.dataframe.to_csv(index=False), data_key="csv_data", event="csv_data")
+
         self.report({"INFO"}, f"Data is exported to {props.format.upper()}.")
         return {"FINISHED"}
 

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

@@ -36,6 +36,7 @@ classes = (
     operator.ProfileImportIFC,
     operator.PurgeHdf5Cache,
     operator.PurgeUnusedElementsByClass,
+    operator.RestartBlender,
     operator.RewindInspector,
     operator.SelectExpressFile,
     operator.SelectHighPolygonMeshes,

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

@@ -770,3 +770,15 @@ class ToggleDetailedIOSLogs(bpy.types.Operator):
             wrapper.turn_off_detailed_logging()
             self.report({"INFO"}, "Detailed IfcOpenShell logs turned off.")
         return {"FINISHED"}
+
+
+class RestartBlender(bpy.types.Operator):
+    bl_idname = "bim.restart_blender"
+    bl_label = "Restart Blender"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        import os
+
+        path = bpy.app.binary_path
+        os.execv(path, sys.argv)

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

@@ -78,6 +78,9 @@ class BIM_PT_debug(Panel):
         row = layout.row()
         row.operator("bim.toggle_detailed_ios_logs")
 
+        row = layout.row()
+        row.operator("bim.restart_blender")
+
         row = layout.split(factor=0.5, align=True)
         row.operator("bim.create_shape_from_step_id").should_include_curves = False
         row.operator("bim.create_shape_from_step_id", text="", icon="IPO_ELASTIC").should_include_curves = True

src/blenderbim/blenderbim/bim/module/model/pie.py

@@ -26,6 +26,7 @@ from blenderbim.bim.ifc import IfcStore
 class OpenPieClass(bpy.types.Operator):
     bl_idname = "bim.open_pie_class"
     bl_label = "Open Pie Class"
+    bl_description = "Assign the IFC Class to the selected objects"
 
     def execute(self, context):
         bpy.ops.wm.call_menu_pie(name="VIEW3D_MT_PIE_bim_class")

src/blenderbim/blenderbim/bim/module/root/operator.py

@@ -166,7 +166,7 @@ class AssignClass(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.assign_class"
     bl_label = "Assign IFC Class"
     bl_options = {"REGISTER", "UNDO"}
-    bl_description = "Assign the IFC Class to the selected object"
+    bl_description = "Assign the IFC Class to the selected objects"
     obj: bpy.props.StringProperty()
     ifc_class: bpy.props.StringProperty()
     predefined_type: bpy.props.StringProperty()
@@ -175,6 +175,13 @@ class AssignClass(bpy.types.Operator, tool.Ifc.Operator):
     should_add_representation: bpy.props.BoolProperty(default=True)
     ifc_representation_class: bpy.props.StringProperty()
 
+    @classmethod
+    def poll(cls, context):
+        if not context.active_object and not context.selected_objects:
+            cls.poll_message_set("No object selected.")
+            return False
+        return True
+
     def _execute(self, context):
         props = context.scene.BIMRootProperties
         objects = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects or [context.active_object]

src/blenderbim/blenderbim/bim/module/web/data.py

@@ -18,6 +18,7 @@
 
 import bpy
 import blenderbim.tool as tool
+import os
 
 
 def refresh():
@@ -31,10 +32,16 @@ class WebData:
     @classmethod
     def load(cls):
         cls.data = {
-            "IFC_File": cls.ifc_file_name(),
+            "ifc_file": cls.get_ifc_file_name(),
+            "is_dirty": cls.get_is_dirty(),
         }
         cls.is_loaded = True
 
     @classmethod
-    def ifc_file_name(cls):
+    def get_ifc_file_name(cls):
-        return bpy.context.scene.BIMProperties.ifc_file
+        filename = os.path.basename(bpy.context.scene.BIMProperties.ifc_file)
+        return filename
+
+    @classmethod
+    def get_is_dirty(cls):
+        return bpy.context.scene.BIMProperties.is_dirty

src/blenderbim/blenderbim/bim/ui.py

@@ -18,7 +18,6 @@
 
 import os
 import bpy
-import addon_utils
 import platform
 from pathlib import Path
 from bpy.types import Panel

src/blenderbim/blenderbim/tool/blender.py

@@ -26,8 +26,8 @@ import ifcopenshell.util.element
 import blenderbim.core.tool
 import blenderbim.tool as tool
 import blenderbim.bim
-import addon_utils
 import types
+import importlib
 from mathutils import Vector
 from pathlib import Path
 from blenderbim.bim.ifc import IFC_CONNECTED_TYPE
@@ -920,7 +920,8 @@ class Blender(blenderbim.core.tool.Blender):
     @classmethod
     def get_last_commit_hash(cls) -> Union[str, None]:
         """Get 8 symbols of last commit hash if it's present or return None otherwise."""
-        commit_hash = blenderbim.bim.last_commit_hash
+        bbim = cls.get_bbim_extension_package()
+        commit_hash = bbim.last_commit_hash
 
         # Commit hash is unset - user is using __init__ from repo
         # without setting up git repository.
@@ -930,17 +931,9 @@ class Blender(blenderbim.core.tool.Blender):
         return commit_hash[:7]
 
     @classmethod
-    def get_blenderbim_version(cls):
+    def get_blenderbim_version(cls) -> str:
-        version = ".".join(
+        bbim = cls.get_bbim_extension_package()
-            [
+        version = bbim.bbim_semver["version"]
-                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]
-            ]
-        )
         if commit_hash := cls.get_last_commit_hash():
             version += f"-{commit_hash}"
         return version
@@ -1114,6 +1107,11 @@ class Blender(blenderbim.core.tool.Blender):
                 return package_name
         return "blenderbim"
 
+    @classmethod
+    def get_bbim_extension_package(cls) -> types.ModuleType:
+        name = cls.get_blender_addon_package_name()
+        return importlib.import_module(name)
+
     @classmethod
     def get_addon_preferences(cls) -> blenderbim.bim.ui.BIM_ADDON_preferences:
         blender_package_name = cls.get_blender_addon_package_name()

src/blenderbim/blenderbim/tool/sequence.py

@@ -1546,14 +1546,16 @@ class Sequence(blenderbim.core.tool.Sequence):
     ) -> None:
         if bpy.context.scene.WebProperties.is_connected:
             gantt_data = {"tasks": task_json, "work_schedule": work_schedule.get_info(recursive=True)}
-            tool.Web.send_webui_data(extra_data=gantt_data, extra_data_key="gantt_data", event="gantt_data")
+            tool.Web.send_webui_data(data=gantt_data, data_key="gantt_data", event="gantt_data")
             return
-        
+
         with open(os.path.join(bpy.context.scene.BIMProperties.data_dir, "gantt", "index.html"), "w") as f:
             with open(os.path.join(bpy.context.scene.BIMProperties.data_dir, "gantt", "index.mustache"), "r") as t:
                 task_b64 = base64.b64encode(bytes(json.dumps(task_json), "utf-8")).decode("utf-8")
                 f.write(
-                    pystache.render(t.read(), {"json_data": task_b64, "data": json.dumps(work_schedule.get_info(recursive=True))})
+                    pystache.render(
+                        t.read(), {"json_data": task_b64, "data": json.dumps(work_schedule.get_info(recursive=True))}
+                    )
                 )
         webbrowser.open("file://" + os.path.join(bpy.context.scene.BIMProperties.data_dir, "gantt", "index.html"))
 

src/blenderbim/blenderbim/tool/web.py

@@ -21,32 +21,47 @@ from blenderbim.bim.module.web.data import WebData
 import blenderbim.core.tool
 import blenderbim.tool as tool
 import ifcopenshell.api.sequence
+from typing import Any, Dict, Optional
 import socket
+import sys
 import os
+import errno
 import subprocess
 import webbrowser
 import asyncio
 import socketio
 import threading
 import queue
+import json
 from time import sleep
+from pathlib import Path
 
 sio = None
 ws_process = None
 ws_thread = None
 web_operator_queue = queue.Queue()
 
+RECONNECTION_ATTEMPTS = 3
+RECONNECTION_DELAY = 2
 IFC_TASK_ATTRIBUTE_MAP = {
     "pStart": "ScheduleStart",
     "pEnd": "ScheduleFinish",
     "pName": "Name",
-    "pRes": "",
 }
 
 
 class Web(blenderbim.core.tool.Web):
     @classmethod
-    def generate_port_number(cls):
+    def generate_port_number(cls) -> int:
+        """
+        Generate a free port number.
+
+        This method creates a temporary socket to bind to a free port.
+        It then retrieves the port number, and returns it.
+
+        Returns:
+            int: The port number that was generated.
+        """
         print("Generating port number")
         with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
             s.bind(("localhost", 0))  # Bind to a free port
@@ -55,35 +70,104 @@ class Web(blenderbim.core.tool.Web):
             return port
 
     @classmethod
-    def is_port_available(cls, port):
+    def is_port_available(cls, port: int) -> bool:
+        """
+        Attempts to connect to the specified port on localhost.
+
+        If the connection is refused, the port is available for use; otherwise, it is in use.
+
+        Args:
+           - port (int): The port number to check.
+
+        Returns:
+            bool: True if the port is available, False if it is in use.
+        """
         with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
-            # connect_ex returns 0 if the connection succeeds
+            # connect_ex returns errno.SUCCESS (0) if the connection succeeds
-            # indicating the port is in use
+            # otherwise returns errno.ECONNREFUSED (111 or 10061) if no server is listening
-            # otherwise returns 10061 if no server is listening
+            return s.connect_ex(("localhost", port)) == errno.ECONNREFUSED
-            # indicating the port is available for use
-            return s.connect_ex(("localhost", port)) == 10061
 
     @classmethod
-    def start_websocket_server(cls, port):
+    def start_websocket_server(cls, port: int) -> None:
+        """
+        Starts a WebSocket server on the specified port.
+
+        This method sets up the environment, locates paths, and starts
+        the WebSocket server process. It also handles the creation and updating of a PID file to keep track
+        of running server instances.
+
+        Args:
+           - port (int): The port number on which to start the WebSocket server.
+        """
+        import addon_utils
+
         global ws_process
 
         webui_path = os.path.join(bpy.context.scene.BIMProperties.data_dir, "webui")
-
         ws_path = os.path.join(webui_path, "sioserver.py")
 
-        ws_process = subprocess.Popen(["python", ws_path, "--p", str(port), "--host", "127.0.0.1"], cwd=webui_path)
+        py_version = sys.version_info
-        cls.open_web_browser(port)
+
+        if bpy.app.version >= (4, 2, 0):
+            blenderbim_lib_path = (
+                Path(bpy.utils.user_resource("EXTENSIONS"))
+                / ".local"
+                / "lib"
+                / f"python{py_version.major}.{py_version.minor}"
+                / "site-packages"
+            )
+        else:
+            addon = [a for a in addon_utils.modules() if a.bl_info["name"] == "BlenderBIM"][0]
+            blenderbim_path = os.path.dirname(addon.__file__)
+            blenderbim_lib_path = os.path.join(blenderbim_path, "libs", "site", "packages")
+
+        env = os.environ.copy()
+        env["blenderbim_lib_path"] = str(blenderbim_lib_path)
+
+        ws_process = subprocess.Popen(
+            [sys.executable, ws_path, "--p", str(port), "--host", "127.0.0.1"],
+            cwd=webui_path,
+            env=env,
+        )
+
+        pid_file = os.path.join(webui_path, "running_pid.json")
+
+        if os.path.exists(pid_file):
+            with open(pid_file, "r") as f:
+                pids = json.load(f)
+        else:
+            pids = {}
+
+        pids[str(ws_process.pid)] = port
+
+        with open(pid_file, "w") as f:
+            json.dump(pids, f, indent=4)
+
         cls.set_is_running(True)
 
     @classmethod
-    def connect_websocket_server(cls, port):
+    def connect_websocket_server(cls, port: int) -> None:
+        """
+        Connect to a WebSocket server on the specified port.
+
+        This method sets up an asynchronous Socket.IO client with
+        reconnection attempts, starts an asyncio thread, connects to the WebSocket server, and sets the connection status.
+
+        Args:
+           - port (int): The port number to connect to the WebSocket server.
+        """
         global ws_thread, sio
 
         if bpy.context.scene.WebProperties.is_connected:
             print(f"Already connected to websocket server on port: {port}")
             return
 
-        sio = socketio.AsyncClient(reconnection=True, reconnection_attempts=3, reconnection_delay=2, logger=True)
+        sio = socketio.AsyncClient(
+            reconnection=True,
+            reconnection_attempts=RECONNECTION_ATTEMPTS,
+            reconnection_delay=RECONNECTION_DELAY,
+            logger=True,
+        )
 
         ws_thread = AsyncioThread()
         ws_thread.daemon = True
@@ -93,10 +177,15 @@ class Web(blenderbim.core.tool.Web):
         ws_thread.run_coro(cls.sio_connect(ws_url))
         cls.set_is_connected(True)
         bpy.app.timers.register(cls.check_operator_queue)
-        cls.send_webui_data()
 
     @classmethod
-    def disconnect_websocket_server(cls):
+    def disconnect_websocket_server(cls) -> None:
+        """
+        Disconnects the WebSocket server and stops the associated thread.
+
+        This method is responsible for disconnecting the WebSocket server, stopping the asyncio thread,
+        and resetting the global variables related to the WebSocket connection.
+        """
         global ws_thread, sio
         ws_thread.run_coro(cls.sio_disconnect())
         ws_thread.stop()
@@ -105,7 +194,13 @@ class Web(blenderbim.core.tool.Web):
         cls.set_is_connected(False)
 
     @classmethod
-    def kill_websocket_server(cls):
+    def kill_websocket_server(cls) -> None:
+        """
+        Terminate the currently running WebSocket server.
+
+        This method checks if there is an active WebSocket server process. If so, it disconnects it (if connected),
+        removes its PID from the PID file, terminates the process, and updates the server's running status.
+        """
         global ws_process
 
         if ws_process is None:
@@ -115,36 +210,62 @@ class Web(blenderbim.core.tool.Web):
         if bpy.context.scene.WebProperties.is_connected:
             cls.disconnect_websocket_server()
 
-        sleep(0.5)
+        # sleep(0.5)
+        webui_path = os.path.join(bpy.context.scene.BIMProperties.data_dir, "webui")
+        pid_file = os.path.join(webui_path, "running_pid.json")
+        with open(pid_file, "r") as f:
+            pids = json.load(f)
+
+        if str(ws_process.pid) in pids:
+            del pids[str(ws_process.pid)]
+
+        # Write the updated PIDs back to the file
+        with open(pid_file, "w") as f:
+            json.dump(pids, f, indent=4)
 
         ws_process.terminate()
         ws_process.wait()
         ws_process = None
 
         cls.set_is_running(False)
-
         print("Websocket server terminated successfully")
 
     @classmethod
     def send_webui_data(
-        cls, extra_data=None, extra_data_key="data", event="data", namespace="/blender", use_web_data=True
+        cls,
-    ):
+        data: Optional[Any] = None,
+        data_key: str = "data",
+        event: str = "data",
+        namespace: str = "/blender",
+        use_web_data: bool = True,
+    ) -> None:
+        """
+        Sends data to the Web UI via Websocket connection.
+
+        Args:
+        - data (Optional[Any]): The data to send. If None, just sends data from WebData.
+        - data_key (str): The key under which to store the data in the payload. Defaults to "data".
+        - event (str): The WebSocket event to emit. Defaults to "data".
+        - namespace (str): The namespace for the WebSocket event. Defaults to "/blender".
+        - use_web_data (bool): Whether to use data from WebData. Defaults to True.
+        """
+
         global ws_thread
-        data = {}
+        payload = {}
 
         if use_web_data:
             if not WebData.is_loaded:
                 WebData.load()
-            data = WebData.data
+            payload = WebData.data
 
-        if extra_data is not None:
+        if data is not None:
-            data[extra_data_key] = extra_data
+            payload[data_key] = data
 
         if ws_thread is not None and bpy.context.scene.WebProperties.is_connected:
-            ws_thread.run_coro(cls.sio_send(data, event, namespace))
+            ws_thread.run_coro(cls.sio_send(payload, event, namespace))
 
     @classmethod
-    def check_operator_queue(cls):
+    def check_operator_queue(cls) -> None | float:
         if not bpy.context.scene.WebProperties.is_connected:
             with web_operator_queue.mutex:
                 web_operator_queue.queue.clear()
@@ -161,7 +282,7 @@ class Web(blenderbim.core.tool.Web):
         return 1.0
 
     @classmethod
-    def handle_csv_operator(cls, operator_data):
+    def handle_csv_operator(cls, operator_data: dict) -> None:
         if operator_data["type"] == "selection":
             bpy.ops.object.select_all(action="DESELECT")
             guid = operator_data["globalId"]
@@ -171,7 +292,7 @@ class Web(blenderbim.core.tool.Web):
             obj.select_set(True)
 
     @classmethod
-    def handle_gantt_operator(cls, operator_data):
+    def handle_gantt_operator(cls, operator_data: dict) -> None:
         ifc_file = tool.Ifc.get()
         if operator_data["type"] == "editTask":
             task_id = int(operator_data["taskId"])
@@ -200,55 +321,81 @@ class Web(blenderbim.core.tool.Web):
         work_schedule = ifc_file.by_id(operator_data["workScheduleId"])
         task_json = tool.Sequence.create_tasks_json(work_schedule)
         gantt_data = {"tasks": task_json, "work_schedule": work_schedule.get_info(recursive=True)}
-        cls.send_webui_data(extra_data=gantt_data, extra_data_key="gantt_data", event="gantt_data")
+        cls.send_webui_data(data=gantt_data, data_key="gantt_data", event="gantt_data")
 
     @classmethod
-    def open_web_browser(cls, port):
+    def open_web_browser(cls, port: int) -> None:
         webbrowser.open(f"http://127.0.0.1:{port}/")
 
     @classmethod
-    async def sio_connect(cls, url):
+    async def sio_connect(cls, url: str) -> None:
         await sio.connect(url, transports=["websocket"], namespaces="/blender")
         sio.on("web_operator", cls.sio_listen_web_operator, namespace="/blender")
 
     @classmethod
-    async def sio_disconnect(cls):
+    async def sio_disconnect(cls) -> None:
         await sio.disconnect()
 
     @classmethod
-    async def sio_send(cls, data, event="data", namespace="/blender"):
+    async def sio_send(cls, data: Any, event: str = "data", namespace: str = "/blender") -> None:
         await sio.emit(event, data, namespace=namespace)
 
     @classmethod
-    async def sio_listen_web_operator(cls, data):
+    async def sio_listen_web_operator(cls, data: dict) -> None:
         try:
             web_operator_queue.put_nowait(data)
         except queue.Full:
             pass
 
     @classmethod
-    def set_is_running(cls, is_running):
+    def set_is_running(cls, is_running: bool) -> None:
         bpy.context.scene.WebProperties.is_running = is_running
 
     @classmethod
-    def set_is_connected(cls, is_connected):
+    def set_is_connected(cls, is_connected: bool) -> None:
         bpy.context.scene.WebProperties.is_connected = is_connected
 
 
 class AsyncioThread(threading.Thread):
     def __init__(self, *args, loop=None, **kwargs):
+        """
+        Initialize an instance of AsyncioThread.
+
+        This class represents a thread that runs an asyncio event loop. It is used to handle asynchronous tasks
+        in a separate thread from the main thread.
+
+        Args:
+           - *args: Variable length argument list. These arguments are passed to the superclass constructor.
+           - loop: An existing asyncio event loop. If None, a new event loop is created.
+           - **kwargs: Arbitrary keyword arguments. These arguments are passed to the superclass constructor.
+        """
         super().__init__(*args, **kwargs)
         self.loop = loop or asyncio.new_event_loop()
         self.running = False
 
     def run(self):
+        """
+        Start the asyncio event loop and mark the thread as running.
+        """
         self.running = True
         self.loop.run_forever()
 
-    def run_coro(self, coro):
+    def run_coro(self, coro) -> Any:
+        """
+        Run a coroutine in the asyncio event loop from a separate thread.
+
+        Args:
+           - coro: The coroutine to be run.
+
+        Returns:
+            The result of the coroutine.
+        """
         return asyncio.run_coroutine_threadsafe(coro, loop=self.loop).result()
 
-    def stop(self):
+    def stop(self) -> None:
+        """
+        Stop the asyncio event loop and join the thread.
+        """
         self.loop.call_soon_threadsafe(self.loop.stop)
         self.join()
         self.running = False

src/blenderbim/docs/devs/installation.rst

@@ -22,8 +22,8 @@ You will need to choose which build to download.
 - If you are on Blender >=4.1, choose py311
 - If you are on Blender >=3.1 and <=4.0, choose py310
 - If you are on Blender >=2.93 and <3.1, choose py39
-- Choose ``linux``, ``macos`` (Apple Intel), ``macosm1`` (Apple Silicon), or
+- Choose ``linux-x64``, ``macos-x64`` (Apple Intel), ``macos-arm64`` (Apple Silicon), or
-  ``win`` depending on your operating system
+  ``windows-x64`` depending on your operating system
 
 For users who don't follow the `VFX Platform <https://vfxplatform.com/>`_
 standard, we also provide py312 builds.
@@ -75,138 +75,17 @@ restart Blender to see changes).
 
 For Linux or Mac:
 
-.. code-block:: bash
+.. literalinclude:: ../../scripts/installation/dev_environment.sh
-
+   :language: bash
-    git clone https://github.com/IfcOpenShell/IfcOpenShell.git
+   :caption: dev_environment.sh
-    cd IfcOpenShell
-
-    # path to BlenderBIM addon
-    # default path on Mac: "/Users/$USER/Library/Application Support/Blender/X.X/scripts/addons/blenderbim"
-    # default path on Linux: "$HOME/.config/blender/X.X/"
-    BLENDER_ADDON_PATH="/path/to/blender/X.XX/scripts/addons/blenderbim"
-
-    # Remove the Blender add-on Python code
-    rm -r $BLENDER_ADDON_PATH/core/
-    rm -r $BLENDER_ADDON_PATH/tool/
-    rm -r $BLENDER_ADDON_PATH/bim/
-
-    # Replace them with links to the Git repository
-    ln -s $PWD/src/blenderbim/blenderbim/core $BLENDER_ADDON_PATH/core
-    ln -s $PWD/src/blenderbim/blenderbim/tool $BLENDER_ADDON_PATH/tool
-    ln -s $PWD/src/blenderbim/blenderbim/bim $BLENDER_ADDON_PATH/bim
-
-    # Copy over compiled IfcOpenShell files
-    cp $BLENDER_ADDON_PATH/libs/site/packages/ifcopenshell/*_wrapper* $PWD/src/ifcopenshell-python/ifcopenshell/
-    
-    # Remove the IfcOpenShell dependency
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcopenshell
-
-    # Replace them with links to the Git repository
-    ln -s $PWD/src/ifcopenshell-python/ifcopenshell $BLENDER_ADDON_PATH/libs/site/packages/ifcopenshell
-
-    # Remove and link other IfcOpenShell utilities
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifccsv.py
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcdiff.py
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/bsdd.py
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/bcf
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifc4d
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifc5d
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifccityjson
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcclash
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcpatch
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifctester
-    rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcfm
-    rm -r $BLENDER_ADDON_PATH/libs/Desktop
-
-    ln -s $PWD/src/ifccsv/ifccsv.py $BLENDER_ADDON_PATH/libs/site/packages/ifccsv.py
-    ln -s $PWD/src/ifcdiff/ifcdiff.py $BLENDER_ADDON_PATH/libs/site/packages/ifcdiff.py
-    ln -s $PWD/src/bsdd/bsdd.py $BLENDER_ADDON_PATH/libs/site/packages/bsdd.py
-    ln -s $PWD/src/bcf/src/bcf $BLENDER_ADDON_PATH/libs/site/packages/bcf
-    ln -s $PWD/src/ifc4d/ifc4d $BLENDER_ADDON_PATH/libs/site/packages/ifc4d
-    ln -s $PWD/src/ifc5d/ifc5d $BLENDER_ADDON_PATH/libs/site/packages/ifc5d
-    ln -s $PWD/src/ifccityjson/ifccityjson $BLENDER_ADDON_PATH/libs/site/packages/ifccityjson
-    ln -s $PWD/src/ifcclash/ifcclash $BLENDER_ADDON_PATH/libs/site/packages/ifcclash
-    ln -s $PWD/src/ifcpatch/ifcpatch $BLENDER_ADDON_PATH/libs/site/packages/ifcpatch
-    ln -s $PWD/src/ifctester/ifctester $BLENDER_ADDON_PATH/libs/site/packages/ifctester
-    ln -s $PWD/src/ifcfm/ifcfm $BLENDER_ADDON_PATH/libs/site/packages/ifcfm
-    ln -s $PWD/src/blenderbim/blenderbim/libs/desktop $BLENDER_ADDON_PATH/libs/Desktop
-
-    # Manually download some third party dependencies
-    cd $BLENDER_ADDON_PATH/bim/data/gantt
-    wget https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.js
-    wget https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.css
-    cd $BLENDER_ADDON_PATH/bim/schema
-    wget https://github.com/BrickSchema/Brick/releases/download/nightly/Brick.ttl
 
 Or, if you're on Windows, you can use the batch script below. You need to run
 it as an administrator. Before running it follow the instructions descibed
 in the `rem` tags.
 
-.. code-block:: bat
+.. literalinclude:: ../../scripts/installation/dev_environment.bat
-
+   :language: bat
-    @echo off
+   :caption: dev_environment.bat
-
-    rem SETUP BLENDER-BIM LIVE DEVELOPMENT ENVIRONMENT
-    rem Setup blenderbim addon location below (probably just need to change "x.x" for your Blender version).
-    rem Put the script to the folder where IfcOpenShell git repository is located
-    rem (script will try to clone IfcOpenShell.git if it's not present).
-    SET blenderbim=%appdata%\Blender Foundation\Blender\x.x\scripts\addons\blenderbim
-
-    git clone https://github.com/IfcOpenShell/IfcOpenShell.git
-    cd IfcOpenShell
-
-    echo Removing the Blender add-on Python code...
-    rd /S /Q "%blenderbim%\core\"
-    rd /S /Q "%blenderbim%\tool\"
-    rd /S /Q "%blenderbim%\bim\"
-
-    echo Replacing them with links to the Git repository...
-    mklink /D "%blenderbim%\core" "%cd%\src\blenderbim\blenderbim\core"
-    mklink /D "%blenderbim%\tool" "%cd%\src\blenderbim\blenderbim\tool"
-    mklink /D "%blenderbim%\bim" "%cd%\src\blenderbim\blenderbim\bim"
-
-    echo Copy over compiled IfcOpenShell files...
-    copy "%blenderbim%\libs\site\packages\ifcopenshell\*_wrapper*" "%cd%\src\ifcopenshell-python\ifcopenshell\"
-
-    echo Remove the IfcOpenShell dependency...
-    rd /S /Q "%blenderbim%\libs\site\packages\ifcopenshell"
-
-    echo Replace them with links to the Git repository...
-    mklink /D "%blenderbim%\libs\site\packages\ifcopenshell" "%cd%\src\ifcopenshell-python\ifcopenshell"
-
-    echo Remove and link other IfcOpenShell utilities...
-    del "%blenderbim%\libs\site\packages\ifccsv.py"
-    del "%blenderbim%\libs\site\packages\ifcdiff.py"
-    del "%blenderbim%\libs\site\packages\bsdd.py"
-    rd /S /Q "%blenderbim%\libs\site\packages\bcf"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifc4d"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifc5d"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifccityjson"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifcclash"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifcpatch"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifctester"
-    rd /S /Q "%blenderbim%\libs\site\packages\ifcfm"
-    rd /S /Q "%blenderbim%\libs\desktop"
-
-    mklink "%blenderbim%\libs\site\packages\ifccsv.py" "%cd%\src\ifccsv\ifccsv.py"
-    mklink "%blenderbim%\libs\site\packages\ifcdiff.py" "%cd%\src\ifcdiff\ifcdiff.py"
-    mklink "%blenderbim%\libs\site\packages\bsdd.py" "%cd%\src\bsdd\bsdd.py"
-    mklink /D "%blenderbim%\libs\site\packages\bcf" "%cd%\src\bcf\src\bcf"
-    mklink /D "%blenderbim%\libs\site\packages\ifc4d" "%cd%\src\ifc4d\ifc4d"
-    mklink /D "%blenderbim%\libs\site\packages\ifc5d" "%cd%\src\ifc5d\ifc5d"
-    mklink /D "%blenderbim%\libs\site\packages\ifccityjson" "%cd%\src\ifccityjson\ifccityjson"
-    mklink /D "%blenderbim%\libs\site\packages\ifcclash" "%cd%\src\ifcclash\ifcclash"
-    mklink /D "%blenderbim%\libs\site\packages\ifcpatch" "%cd%\src\ifcpatch\ifcpatch"
-    mklink /D "%blenderbim%\libs\site\packages\ifctester" "%cd%\src\ifctester\ifctester"
-    mklink /D "%blenderbim%\libs\site\packages\ifcfm" "%cd%\src\ifcfm\ifcfm"
-    mklink /D "%blenderbim%\libs\desktop" "%cd%\src\blenderbim\blenderbim\libs\desktop"
-
-    echo Manually downloading some third party dependencies...
-    curl https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.js -o "%blenderbim%\bim\data\gantt\jsgantt.js"
-    curl https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.css -o "%blenderbim%\bim\data\gantt\jsgantt.css"
-    curl -L https://github.com/BrickSchema/Brick/releases/download/nightly/Brick.ttl -o "%blenderbim%\bim\schema\Brick.ttl"
-
-    pause
 
 After you modify your code in the Git repository, you will need to restart
 Blender for the changes to take effect.

src/blenderbim/scripts/bbim_translations.py

@@ -1,5 +1,8 @@
 try:
     import bpy
+    # Ensure it's not fake-bpy-module.
+    if not hasattr(bpy, "context"):
+        raise ModuleNotFoundError
     import bl_i18n_utils
     import addon_utils
 

src/blenderbim/scripts/installation/dev_environment.bat

@@ -0,0 +1,66 @@
+@echo off
+
+rem SETUP BLENDER-BIM LIVE DEVELOPMENT ENVIRONMENT
+rem Update BLENDER_VERSION, PYTHON_VERSION, BBIM_REPO in the script bellow.
+rem Put the script to the folder where IfcOpenShell git repository is located
+rem (script will try to clone IfcOpenShell.git if it's not present).
+SET BLENDER_VERSION=4.2
+SET PYTHON_VERSION=3.11
+SET BBIM_REPO=user_default
+
+SET BLENDER=%appdata%\Blender Foundation\Blender\%BLENDER_VERSION%
+SET BLENDER_LOCAL=%BLENDER%\extensions\.local\lib\python%PYTHON_VERSION%\site-packages
+SET BLENDERBIM=%BLENDER_LOCAL%\blenderbim
+SET BLENDER_EXT=%BLENDER%\extensions\%BBIM_REPO%\blenderbim
+
+git clone https://github.com/IfcOpenShell/IfcOpenShell.git
+cd IfcOpenShell
+
+echo Removing the Blender add-on Python code...
+del "%BLENDER_EXT%\__init__.py"
+rd /S /Q "%BLENDERBIM%"
+
+echo Replacing them with links to the Git repository...
+mklink "%BLENDER_EXT%\__init__.py" "%CD%\src\blenderbim\blenderbim\__init__.py"
+mklink /D "%BLENDERBIM%" "%CD%\src\blenderbim\blenderbim"
+
+echo Copy over compiled IfcOpenShell files...
+copy "%BLENDER_LOCAL%\ifcopenshell\*_wrapper*" "%CD%\src\ifcopenshell-python\ifcopenshell\"
+
+echo Remove the IfcOpenShell dependency...
+rd /S /Q "%BLENDER_LOCAL%\ifcopenshell"
+
+echo Replace them with links to the Git repository...
+mklink /D "%BLENDER_LOCAL%\ifcopenshell" "%CD%\src\ifcopenshell-python\ifcopenshell"
+
+echo Remove and link other IfcOpenShell utilities...
+del "%BLENDER_LOCAL%\ifccsv.py"
+del "%BLENDER_LOCAL%\ifcdiff.py"
+del "%BLENDER_LOCAL%\bsdd.py"
+rd /S /Q "%BLENDER_LOCAL%\bcf"
+rd /S /Q "%BLENDER_LOCAL%\ifc4d"
+rd /S /Q "%BLENDER_LOCAL%\ifc5d"
+rd /S /Q "%BLENDER_LOCAL%\ifccityjson"
+rd /S /Q "%BLENDER_LOCAL%\ifcclash"
+rd /S /Q "%BLENDER_LOCAL%\ifcpatch"
+rd /S /Q "%BLENDER_LOCAL%\ifctester"
+rd /S /Q "%BLENDER_LOCAL%\ifcfm"
+
+mklink "%BLENDER_LOCAL%\ifccsv.py" "%CD%\src\ifccsv\ifccsv.py"
+mklink "%BLENDER_LOCAL%\ifcdiff.py" "%CD%\src\ifcdiff\ifcdiff.py"
+mklink "%BLENDER_LOCAL%\bsdd.py" "%CD%\src\bsdd\bsdd.py"
+mklink /D "%BLENDER_LOCAL%\bcf" "%CD%\src\bcf\bcf"
+mklink /D "%BLENDER_LOCAL%\ifc4d" "%CD%\src\ifc4d\ifc4d"
+mklink /D "%BLENDER_LOCAL%\ifc5d" "%CD%\src\ifc5d\ifc5d"
+mklink /D "%BLENDER_LOCAL%\ifccityjson" "%CD%\src\ifccityjson\ifccityjson"
+mklink /D "%BLENDER_LOCAL%\ifcclash" "%CD%\src\ifcclash\ifcclash"
+mklink /D "%BLENDER_LOCAL%\ifcpatch" "%CD%\src\ifcpatch\ifcpatch"
+mklink /D "%BLENDER_LOCAL%\ifctester" "%CD%\src\ifctester\ifctester"
+mklink /D "%BLENDER_LOCAL%\ifcfm" "%CD%\src\ifcfm\ifcfm"
+
+echo Manually downloading some third party dependencies...
+curl https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.js -o "%BLENDERBIM%\bim\data\gantt\jsgantt.js"
+curl https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.css -o "%BLENDERBIM%\bim\data\gantt\jsgantt.css"
+curl -L https://github.com/BrickSchema/Brick/releases/download/nightly/Brick.ttl -o "%BLENDERBIM%\bim\schema\Brick.ttl"
+
+pause

src/blenderbim/scripts/installation/dev_environment.sh

@@ -0,0 +1,60 @@
+git clone https://github.com/IfcOpenShell/IfcOpenShell.git
+cd IfcOpenShell
+
+# path to BlenderBIM addon
+# default path on Mac: "/Users/$USER/Library/Application Support/Blender/X.X/scripts/addons/blenderbim"
+# default path on Linux: "$HOME/.config/blender/X.X/"
+BLENDER_ADDON_PATH="/path/to/blender/X.XX/scripts/addons/blenderbim"
+
+# Remove the Blender add-on Python code
+rm -r $BLENDER_ADDON_PATH/core/
+rm -r $BLENDER_ADDON_PATH/tool/
+rm -r $BLENDER_ADDON_PATH/bim/
+
+# Replace them with links to the Git repository
+ln -s $PWD/src/blenderbim/blenderbim/core $BLENDER_ADDON_PATH/core
+ln -s $PWD/src/blenderbim/blenderbim/tool $BLENDER_ADDON_PATH/tool
+ln -s $PWD/src/blenderbim/blenderbim/bim $BLENDER_ADDON_PATH/bim
+
+# Copy over compiled IfcOpenShell files
+cp $BLENDER_ADDON_PATH/libs/site/packages/ifcopenshell/*_wrapper* $PWD/src/ifcopenshell-python/ifcopenshell/
+
+# Remove the IfcOpenShell dependency
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcopenshell
+
+# Replace them with links to the Git repository
+ln -s $PWD/src/ifcopenshell-python/ifcopenshell $BLENDER_ADDON_PATH/libs/site/packages/ifcopenshell
+
+# Remove and link other IfcOpenShell utilities
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifccsv.py
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcdiff.py
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/bsdd.py
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/bcf
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifc4d
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifc5d
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifccityjson
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcclash
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcpatch
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifctester
+rm -r $BLENDER_ADDON_PATH/libs/site/packages/ifcfm
+rm -r $BLENDER_ADDON_PATH/libs/Desktop
+
+ln -s $PWD/src/ifccsv/ifccsv.py $BLENDER_ADDON_PATH/libs/site/packages/ifccsv.py
+ln -s $PWD/src/ifcdiff/ifcdiff.py $BLENDER_ADDON_PATH/libs/site/packages/ifcdiff.py
+ln -s $PWD/src/bsdd/bsdd.py $BLENDER_ADDON_PATH/libs/site/packages/bsdd.py
+ln -s $PWD/src/bcf/bcf $BLENDER_ADDON_PATH/libs/site/packages/bcf
+ln -s $PWD/src/ifc4d/ifc4d $BLENDER_ADDON_PATH/libs/site/packages/ifc4d
+ln -s $PWD/src/ifc5d/ifc5d $BLENDER_ADDON_PATH/libs/site/packages/ifc5d
+ln -s $PWD/src/ifccityjson/ifccityjson $BLENDER_ADDON_PATH/libs/site/packages/ifccityjson
+ln -s $PWD/src/ifcclash/ifcclash $BLENDER_ADDON_PATH/libs/site/packages/ifcclash
+ln -s $PWD/src/ifcpatch/ifcpatch $BLENDER_ADDON_PATH/libs/site/packages/ifcpatch
+ln -s $PWD/src/ifctester/ifctester $BLENDER_ADDON_PATH/libs/site/packages/ifctester
+ln -s $PWD/src/ifcfm/ifcfm $BLENDER_ADDON_PATH/libs/site/packages/ifcfm
+ln -s $PWD/src/blenderbim/blenderbim/libs/desktop $BLENDER_ADDON_PATH/libs/Desktop
+
+# Manually download some third party dependencies
+cd $BLENDER_ADDON_PATH/bim/data/gantt
+wget https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.js
+wget https://raw.githubusercontent.com/jsGanttImproved/jsgantt-improved/master/dist/jsgantt.css
+cd $BLENDER_ADDON_PATH/bim/schema
+wget https://github.com/BrickSchema/Brick/releases/download/nightly/Brick.ttl

src/common.mk

@@ -1,6 +1,8 @@
+IS_STABLE:=FALSE
 PYTHON:=python3.11
 PIP:=pip3.11
 VERSION:=$(shell cat ../../VERSION)
+VERSION_DATE:=$(shell date '+%y%m%d')
 SED:=sed -i
 VENV_BIN:=bin
 
@@ -23,11 +25,20 @@ dist:
 	mkdir -p dist
 	cp -r $(PACKAGE_NAME) build/
 	cp pyproject.toml build/
+ifeq ($(IS_STABLE), TRUE)
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/pyproject.toml
 ifdef IS_MODULE
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/$(PACKAGE_NAME)
 else
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/$(PACKAGE_NAME)/__init__.py
+endif
+else
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)a$(VERSION_DATE)"/' build/pyproject.toml
+ifdef IS_MODULE
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/$(PACKAGE_NAME)
+else
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/$(PACKAGE_NAME)/__init__.py
+endif
 endif
 	cd build && $(PYTHON) -m venv env && . env/$(VENV_ACTIVATE) && $(PIP) install build
 	cd build && . env/$(VENV_ACTIVATE) && $(PYTHON) -m build

src/ifcgeom/kernels/opencascade/faceset_helper.cpp

@@ -42,7 +42,7 @@ IfcGeom::OpenCascadeKernel::faceset_helper::faceset_helper(
 			loops.push_back(l);
 			for (auto& e : l->children) {
 				// @todo make sure only cartesian points are provided here
-				auto& p = boost::get<ifcopenshell::geometry::taxonomy::point3::ptr>(e->start);
+				auto& p = boost::get<ifcopenshell::geometry::taxonomy::point3::ptr>(e->orientation.get_value_or(true) ? e->start : e->end);
 				if (point_identities_visited.find(p->identity()) == point_identities_visited.end()) {
 					point_identities_visited.insert(p->identity());
 					points.push_back(p);
@@ -201,10 +201,10 @@ void IfcGeom::OpenCascadeKernel::faceset_helper::loop_(const ifcopenshell::geome
 		return;
 	}
 
-	auto a = boost::get<ifcopenshell::geometry::taxonomy::point3::ptr>(ps->children.back()->start);
+	auto a = boost::get<ifcopenshell::geometry::taxonomy::point3::ptr>(ps->children.back()->orientation.get_value_or(true) ? ps->children.back()->start : ps->children.back()->end);
 	auto A = a->identity();
 	for (auto& b : ps->children) {
-		auto B = boost::get<ifcopenshell::geometry::taxonomy::point3::ptr>(b->start)->identity();
+		auto B = boost::get<ifcopenshell::geometry::taxonomy::point3::ptr>(b->orientation.get_value_or(true) ? b->start : b->end)->identity();
 		auto C = vertex_mapping_[A], D = vertex_mapping_[B];
 		bool fwd = C < D;
 		if (!b->orientation) {

src/ifcgeom/mapping/IfcSectionedSolidHorizontal.cpp

@@ -52,7 +52,8 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcSectionedSolidHorizontal* in
 	auto pwf = taxonomy::dcast<taxonomy::piecewise_function>(dir);
 	if (!pwf) {
 		// Only implement on alignment curves
-		return nullptr;
+        Logger::Warning("IfcSectionedSolidHorizontal is only implemented for piecewise function Directrix curves", inst);
+        return nullptr;
 	}
 
 	{	
@@ -111,6 +112,7 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcSectionedSolidHorizontal* in
 	loft->axis = nullptr;
 
 	// @todo currently only the case is handled where directrix returns a piecewise_function
+	// @todo this "if" statement is not really required because the function returns at the start if the Directrix is not a piecewise function
 	if (pwf) {
 		double start = std::max(0., cross_sections.front().dist_along);
 		double end = std::min(pwf->length(), cross_sections.back().dist_along);

src/ifcgeom/mapping/mapping.cpp

@@ -341,10 +341,10 @@ namespace {
             return item;
         }
 
-        while (item->declaration().is(IfcSchema::IfcBooleanClippingResult::Class())) {
+        while (auto booleanresult = item->as<IfcSchema::IfcBooleanClippingResult>()) {
             // All instantiations of IfcBooleanOperand (type of FirstOperand) are subtypes of
             // IfcGeometricRepresentationItem
-            item = (IfcSchema::IfcGeometricRepresentationItem*) ((IfcSchema::IfcBooleanClippingResult*) item)->FirstOperand();
+            item = booleanresult->FirstOperand()->as<IfcSchema::IfcRepresentationItem>();
             if (item->StyledByItem()->size()) {
                 return item;
             }
@@ -756,6 +756,14 @@ void mapping::initialize_units_() {
     if (!angle_unit_encountered) {
         Logger::Warning("No plane angle unit encountered");
     }
+
+    // @todo move to a more descriptive function
+    if (settings_.get<settings::BuildingLocalPlacement>().get()) {
+        placement_rel_to_type_ = file_->schema()->declaration_by_name("IfcBuilding");
+    }
+    if (settings_.get<settings::SiteLocalPlacement>().get()) {
+        placement_rel_to_type_ = file_->schema()->declaration_by_name("IfcSite");
+    }
 }
 
 void mapping::initialize_settings() {

src/ifcopenshell-python/Makefile

@@ -1,4 +1,6 @@
+IS_STABLE:=FALSE
 VERSION:=$(shell cat ../../VERSION)
+VERSION_DATE:=$(shell date '+%y%m%d')
 PYVERSION:=py311
 PLATFORM:=linux64
 
@@ -120,11 +122,20 @@ endif
 	cp -r build/botbuild/ifcopenshell/*ifcopenshell_wrapper* build/ifcopenshell/
 	cp ../../README.md build/
 	cp pyproject.toml build/
+ifeq ($(IS_STABLE), TRUE)
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/pyproject.toml
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)"/' build/ifcopenshell/__init__.py
+else
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)a$(VERSION_DATE)"/' build/pyproject.toml
+	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/ifcopenshell/__init__.py
+endif
 
 	cd build && $(PYTHON) -m venv env && . env/$(VENV_ACTIVATE) && $(PIP) install build
 	cd build && . env/$(VENV_ACTIVATE) && $(PYTHON) -m build
 
-	mv build/dist/ifcopenshell-$(VERSION)-py3-none-any.whl dist/ifcopenshell-$(VERSION)-$(PYVERSION)-none-$(PLATFORMTAG).whl
+ifeq ($(IS_STABLE), TRUE)
-	rm -rf build
+	mv build/dist/ifcopenshell-*.whl dist/ifcopenshell-$(VERSION)-$(PYVERSION)-none-$(PLATFORMTAG).whl
+else
+	cp build/dist/ifcopenshell-*.whl dist/ifcopenshell-$(VERSION)a$(VERSION_DATE)-$(PYVERSION)-none-$(PLATFORMTAG).whl
+endif
+	# rm -rf build

src/ifcopenshell-python/docs/conf.py

@@ -81,10 +81,10 @@ autoapi_add_toctree_entry = True
 autoapi_type = "python"
 
 # autoapi works by reading source code instead of importing modules
-autoapi_dirs = ['../ifcopenshell', '../../bcf/src', '../../bsdd', '../../ifccsv', '../../ifcdiff', '../../ifcpatch/ifcpatch', '../../ifctester/ifctester']
+autoapi_dirs = ['../ifcopenshell', '../../bcf/bcf', '../../bsdd', '../../ifccsv', '../../ifcdiff', '../../ifcpatch/ifcpatch', '../../ifctester/ifctester']
 # autoapi_dirs = ['../../ifcdiff']
 # autoapi_dirs = ['../../ifcdiff', '../ifcopenshell/util']
-# autoapi_dirs = ['../../bcf/src', '../../bsdd', '../../ifccsv', '../../ifcdiff', '../../ifcpatch/ifcpatch', '../../ifctester/ifctester']
+# autoapi_dirs = ['../../bcf/bcf', '../../bsdd', '../../ifccsv', '../../ifcdiff', '../../ifcpatch/ifcpatch', '../../ifctester/ifctester']
 
 # These are auto-generated based on the IFC schema, so exclude them
 autoapi_ignore = ['*ifcopenshell/express/rules*']

src/ifcopenshell-python/ifcopenshell/util/schema/ifc_classes_suggestions.json

@@ -21,6 +21,14 @@
         },
         {
             "name": "Capping"
+        },
+        {
+            "name": "Screed",
+            "predefined_type": "FLOORING"
+        },
+        {
+            "name": "Screed",
+            "predefined_type": "TOPPING"
         }
     ],
     "IfcDistributionElement": [