Add descriptions to IFC Search function (#1618)

* Added descriptions to IFC Search function

* change color to colour

.travis.yml

@@ -22,10 +22,15 @@ addons:
     - nlohmann-json3-dev
     - opencollada-dev
     - python3-all-dev
+    - python3-pip
     - swig
 
 before_script:
   - if [ $TRAVIS_OS_NAME == "linux" ]; then ccache -z; fi
+  
+install:
+  # for IDS
+  - python3 -m pip install xmlschema
 
 script:
   - pwd
@@ -39,6 +44,7 @@ script:
     -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 \
+    "-DSCHEMA_VERSIONS=2x3;4" \
     -DGLTF_SUPPORT=On \
     -DJSON_INCLUDE_DIR=/usr/include \
     ../cmake

cmake/CMakeLists.txt

@@ -494,7 +494,9 @@ function(files_for_ifc_version IFC_VERSION RESULT_NAME)
     )
 endfunction()
 
-set(SCHEMA_VERSIONS "2x3" "4" "4x1" "4x2" "4x3_rc1" "4x3_rc2" "4x3_rc3" "4x3_rc4")
+if(NOT SCHEMA_VERSIONS)
+    set(SCHEMA_VERSIONS "2x3" "4" "4x1" "4x2" "4x3_rc1" "4x3_rc2" "4x3_rc3" "4x3_rc4")
+endif()
 
 foreach(s ${SCHEMA_VERSIONS})
 	add_definitions(-DHAS_SCHEMA_${s})

src/bcf/README.md

@@ -7,13 +7,13 @@ is available via `bcfapi.py`.
  - BCF-XML version 2.1: Fully supported
  - BCF-API version 2.1: Not supported, will probably tackle this after BCF-API v3.0
  - BCF-XML version 3.0: Almost fully supported, except for the documents module
- - BCF-API version 3.0: Not supported, but work underway to support it
+ - BCF-API version 3.0: Almost fully supported, except for two requests.
 
 ## bcfxml
 
 The `bcfxml` module lets you interact with the BCF-XML standard.
 
-```
+```python
 from bcf import bcfxml
 
 
@@ -60,3 +60,42 @@ topic = bcfxml.get_topic(guid)
 topic.title = "New title"
 bcfxml.edit_topic(topic)
 ```
+
+## bcfapi
+
+The `bcfapi` module lets you interact with the BCF-API standard.
+
+```python
+from bcf.v3.bcfapi import Client
+
+client_id = "YOUR_CLIENT_ID"
+client_secret = "YOUR_CLIENT_SECRET"
+
+client = Client(client_id, client_secret)
+client.set_urls(base_url="OPENCDE_BASEURL")
+auth_methods = client.get_auth_methods()
+
+# Our library currently only implements the authorization_code flow
+if "authorization_code" in auth_methods:
+    client.login()
+
+versions = client.get_versions()
+
+if "3.0" in versions:
+    client.set_version(version="3.0")
+
+data = client.get_projects()
+print(data)
+project_id = data[0]["project_id"]
+print(project_id)
+data = client.get_project(project_id)
+print(data)
+data = client.get_extensions(project_id)
+print(data)
+```
+
+## Todo List 
+The remaining work that needs to be completed in `bcfxml.py` and `bcfapi.py`.
+  * For `bcfxml.py` two xsds support is remaining namely 'documents.xsd` and `extensions.xsd`.
+  * For `bcfapi.py` two requests that are `get_topics` and `get_comments` are remaining.
+

src/bcf/bcf/v3/bcfapi.py

@@ -0,0 +1,540 @@
+import uuid
+import time
+import json
+import urllib
+import requests
+import webbrowser
+import http.server
+import base64
+
+
+client_id, client_secret = "", ""
+
+
+class OAuthReceiver(http.server.BaseHTTPRequestHandler):
+    def do_GET(self):
+        query = urllib.parse.parse_qs(urllib.parse.urlparse(self.path).query)
+        self.server.auth_code = query.get("code", [""])[0]
+        self.server.auth_state = query.get("state", [""])[0]
+        self.send_response(200)
+        self.send_header("Content-type", "text/plain")
+        self.end_headers()
+        self.wfile.write("You have now authenticated :) You may now close this browser window.".encode("utf-8"))
+
+
+class Client:
+    def __init__(self, client_id, client_secret):
+        self.baseurl = None
+        self.access_token = ""
+        self.refresh_token = ""
+        self.access_token_expires_on = time.time()
+        self.refresh_token_expires_on = float("inf")
+        self.auth_endpoint = None
+        self.token_endpoint = None
+        self.client_id = client_id
+        self.client_secret = client_secret
+        self.version_ids = {}
+        self.version = None
+        self.auth_method = None
+        self.redirect_uri = None
+        self.api_baseurl = None
+
+    def get(self, endpoint, params=None, is_auth_required=False):
+        headers = {"Authorization": "Bearer " + self.get_access_token()}
+        return requests.get(f"{self.api_baseurl}{endpoint}", headers=headers, params=params or None).json()
+
+    def post(self, endpoint, data=None, params=None):
+        headers = {
+            "Authorization": "Bearer " + self.get_access_token(),
+            "Content-type": "application/json",
+        }
+        resp = requests.post(
+            f"{self.api_baseurl}{endpoint}",
+            headers=headers,
+            params=params or None,
+            data=data or None,
+        )
+        return resp.status_code, resp.text
+
+    def put(self, endpoint, data=None, params=None):
+        headers = {
+            "Authorization": "Bearer " + self.get_access_token(),
+            "Content-type": "application/json",
+        }
+        resp = requests.put(
+            f"{self.baseurl}{endpoint}",
+            headers=headers,
+            params=params or None,
+            data=data or None,
+        )
+        return resp.status_code, resp.text
+
+    def set_urls(self, base_url=None, redirect_uri=None):
+        self.baseurl = base_url
+        self.redirect_uri = redirect_uri
+
+    def delete(self, endpoint, params=None):
+        headers = {"Authorization": "Bearer " + self.get_access_token()}
+        resp = requests.put(
+            f"{self.baseurl}{endpoint}",
+            headers=headers,
+            params=params or None,
+        )
+        return resp.status_code
+
+    def get_access_token(self):
+        if self.access_token and self.access_token_expires_on > time.time():
+            return self.access_token
+        elif self.refresh_token and self.refresh_token_expires_on > time.time():
+            self.get_refresh_token()
+        else:
+            self.login()
+        return self.access_token
+
+    def get_auth_methods(self):
+        resp = requests.get(f"{self.baseurl}opencde/1.0/auth")
+        return resp.json()["supported_oauth2_flows"]
+
+    def get_versions(self):
+        resp = requests.get(f"{self.baseurl}opencde/versions")
+        resp_values = resp.json()["versions"]
+        for version in resp_values:
+            if "api_base_url" in version:
+                self.version_ids.update({version["version_id"]: version["api_base_url"]})
+        return self.version_ids
+
+    def set_version(self, version=None):
+        self.version = version
+        self.api_baseurl = self.version_ids[self.version]
+
+    def login(self):
+        resp = requests.get(f"{self.baseurl}opencde/1.0/auth")
+        values = resp.json()
+        self.auth_endpoint = values["oauth2_auth_url"]
+        self.token_endpoint = values["oauth2_token_url"]
+
+        with http.server.HTTPServer(("", 8080), OAuthReceiver) as server:
+            state = str(uuid.uuid4())
+            query = urllib.parse.urlencode(
+                {
+                    "client_id": self.client_id,
+                    "response_type": "code",
+                    "state": state,
+                    "redirect_uri": f"http://localhost:{server.server_address[1]}/{self.redirect_uri}",
+                }
+            )
+            if "?" in self.auth_endpoint:
+                webbrowser.open(f"{self.auth_endpoint}&{query}")
+            else:
+                webbrowser.open(f"{self.auth_endpoint}?{query}")
+            server.timeout = 100
+            server.state = state
+            server.handle_request()
+            if server.auth_code and server.auth_state == state:
+                data = {
+                    "grant_type": "authorization_code",
+                    "code": server.auth_code,
+                    "redirect_uri": f"http://localhost:{server.server_address[1]}/{self.redirect_uri}",
+                }
+                auth_string = f"{self.client_id}:{self.client_secret}"
+                header_string = base64.b64encode(auth_string.encode("utf-8")).decode("utf-8")
+                headers = {"Authorization": f"Basic {header_string}"}
+                self.set_tokens_from_response(requests.post(self.token_endpoint, data=data, headers=headers))
+
+    def get_refresh_token(self):
+        self.set_tokens_from_response(
+            requests.post(
+                self.token_endpoint,
+                params={
+                    "grant_type": "refresh_token",
+                    "refresh_token": self.refresh_token,
+                },
+            ).json()
+        )
+
+    def get_new_access_token(self):
+        auth_string = f"{self.client_id}:{self.client_secret}"
+        header_string = base64.b64encode(auth_string.encode("utf-8")).decode("utf-8")
+        headers = {"Authorization": f"Basic {header_string}"}
+        self.set_tokens_from_response(
+            requests.post(
+                self.token_endpoint,
+                data={
+                    "grant_type": "refresh_token",
+                    "refresh_token": self.refresh_token,
+                },
+                headers=headers,
+            ).json()
+        )
+
+    def set_auth_method(self, method="authorization_code_grant"):
+        if method != "authorization_code_grant":
+            raise NotImplementedError(f"{method} not supported")
+        else:
+            self.auth_method = method
+
+    def set_tokens_from_response(self, response):
+        response = response.json()
+        self.access_token = response["access_token"]
+        self.refresh_token = response["refresh_token"]
+        self.access_token_expires_on = time.time() + response["expires_in"]
+        if "refresh_token_expires_in" in response:
+            self.refresh_token_expires_on = time.time() + response["refresh_token_expires_in"]
+
+    def get_projects(self) -> list:
+        return self.get(
+            f"/projects",
+        )
+
+    def get_project(
+        self,
+        project_id="",
+    ) -> dict:
+        return self.get(
+            f"/projects/{project_id}",
+            {
+                "project_id": project_id,
+            },
+        )
+
+    def update_project(self, project_id="", data=None) -> dict:
+        url = f"{self.baseurl}/projects/{project_id}"
+        headers = {"Authorization": "Bearer " + self.get_access_token()}
+        resp = requests.put(url, headers=headers, data=data)
+        return resp.status_code, resp.text
+
+    def get_extensions(
+        self,
+        project_id="",
+    ) -> dict:
+        return self.get(
+            f"/projects/{project_id}/extensions",
+            {
+                "project_id": project_id,
+            },
+        )
+
+    def get_topics(
+        self,
+        project_id="",
+        topics="",
+        query_string=None,
+    ) -> list:
+        # return self.get(
+        #     f"/projects/{project_id}/topics",
+        #     {
+        #         "project_id": project_id,
+        #         "topics": topics,
+        #         "query_string": query_string,
+        #     },
+        # )
+        pass
+
+    def get_topic(self, project_id="", topic_id="") -> dict:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def create_topic(self, project_id="", data=None):
+        return self.post(f"/projects/{project_id}/topics", data=data)
+
+    def update_topic(self, project_id="", topic_id="", data=None) -> dict:
+        return self.put(f"/projects/{project_id}/topics/{topic_id}", data=data)
+
+    def delete_topic(self, project_id="", topic_id=""):
+        return self.delete(f"/projects/{project_id}/topics/{topic_id}")
+
+    def get_snippet(self, project_id="", topic_id="") -> str:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/snippet",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def update_snippet(self, project_id="", topic_id="", data=None):
+        return self.put(f"/projects/{project_id}/topics", data=data)
+
+    def get_files_information(self, project_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/files_information",
+            {
+                "project_id": project_id,
+            },
+        )
+
+    def get_files(self, project_id="", topic_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/files",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def update_files(
+        self,
+        project_id="",
+        topic_id="",
+        data=None,
+        params=None,
+    ):
+        return self.put(
+            f"/projects/{project_id}/topics/{topic_id}/files",
+            data=data,
+        )
+
+    def get_comments(self, project_id="", topic_id="") -> list:
+        pass
+
+    def create_comments(
+        self,
+        project_id="",
+        topic_id="",
+        data=None,
+        params=None,
+    ):
+        return self.post(
+            f"/projects/{project_id}/topics/{topic_id}/comments",
+            data=data,
+        )
+
+    def get_comment(self, project_id="", topic_id="", comment_id="") -> dict:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/comments/{comment_id}",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "comment_id": comment_id,
+            },
+        )
+
+    def delete_comment(self, project_id="", topic_id="", comment_id=""):
+        return self.delete(f"/projects/{project_id}/topics/{topic_id}/comments/{comment_id}")
+
+    def update_comment(
+        self,
+        project_id="",
+        topic_id="",
+        comment_id="",
+        data=None,
+    ):
+        return self.put(
+            f"/projects/{project_id}/topics/{topic_id}/comments/{comment_id}",
+            data=data,
+        )
+
+    def get_viewpoints(self, project_id="", topic_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def create_viewpoints(self, project_id="", topic_id="", data=None):
+        return self.post(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints",
+            data=data,
+        )
+
+    def get_viewpoint(self, project_id="", topic_id="", viewpoint_id="") -> dict:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "viewpoint_id": viewpoint_id,
+            },
+        )
+
+    def delete_viewpoint(
+        self,
+        project_id="",
+        topic_id="",
+        viewpoint_id="",
+    ):
+        return self.delete(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}",
+        )
+
+    def get_snapshot(self, project_id="", topic_id="", viewpoint_id="") -> str:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}/snapshot",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "viewpoint_id": viewpoint_id,
+            },
+        )
+
+    def get_bitmap(self, project_id="", topic_id="", viewpoint_id="", bitmap_id="") -> str:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}/bitmaps/{bitmap_id}",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "viewpoint_id": viewpoint_id,
+                "bitmap_id": bitmap_id,
+            },
+        )
+
+    def get_selection(self, project_id="", topic_id="", viewpoint_id="") -> dict:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}/selection",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "viewpoint_id": viewpoint_id,
+            },
+        )
+
+    def get_coloring(self, project_id="", topic_id="", viewpoint_id="") -> dict:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}/coloring",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "viewpoint_id": viewpoint_id,
+            },
+        )
+
+    def get_visibility(self, project_id="", topic_id="", viewpoint_id="") -> dict:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/viewpoints/{viewpoint_id}/visibility",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "viewpoint_id": viewpoint_id,
+            },
+        )
+
+    def get_related_topics(self, project_id="", topic_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/related_topics",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def update_related_topics(
+        self,
+        project_id="",
+        topic_id="",
+        data=None,
+    ):
+        return self.put(
+            f"/projects/{project_id}/topics/{topic_id}/related_topics",
+            data=data,
+        )
+
+    def get_document_references(self, project_id="", topic_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/document_references",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def create_document_reference(
+        self,
+        project_id="",
+        topic_id="",
+        data=None,
+    ):
+        return self.post(
+            f"/projects/{project_id}/topics/{topic_id}/document_references",
+            data=data,
+        )
+
+    def update_document_references(
+        self,
+        project_id="",
+        topic_id="",
+        document_reference_id="",
+        data=None,
+    ):
+        return self.put(
+            f"/projects/{project_id}/topics/{topic_id}/document_references/{document_reference_id}",
+            data=data,
+        )
+
+    def get_documents(self, project_id="", topic_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/documents",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def create_document(
+        self,
+        project_id="",
+        topic_id="",
+        guid=None,
+        data=None,
+    ):
+        headers = {
+            "Authorization": "Bearer " + self.get_access_token(),
+            "Content-type": "application/octet-stream",
+        }
+        response = requests.post(
+            f"/projects/{project_id}/topics/{topic_id}/documents",
+            data=data,
+            params={guid},
+            headers=headers,
+        )
+
+    def get_document(self, project_id="", topic_id="", document_id="") -> str:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/documents/{document_id}",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "document_id": document_id,
+            },
+        )
+
+    def get_topics_events(self, project_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/events",
+            {
+                "project_id": project_id,
+            },
+        )
+
+    def get_topic_events(self, project_id="", topic_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/events",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+            },
+        )
+
+    def get_comments_events(self, project_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/comments/events",
+            {
+                "project_id": project_id,
+            },
+        )
+
+    def get_comment_events(self, project_id="", topic_id="", comment_id="") -> list:
+        return self.get(
+            f"/projects/{project_id}/topics/{topic_id}/comments/{comment_id}/events",
+            {
+                "project_id": project_id,
+                "topic_id": topic_id,
+                "comment_id": comment_id,
+            },
+        )

src/blenderbim/Makefile

@@ -13,10 +13,10 @@ endif
 
 	# Provides IfcOpenShell Python functionality
 ifeq ($(PYVERSION), py37)
-	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcblender-python-37-v0.6.0-2fd2b49-$(PLATFORM)64.zip
+	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcblender-python-37-v0.6.0-f14d349-$(PLATFORM)64.zip
 endif
 ifeq ($(PYVERSION), py39)
-	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcblender-python-39-v0.6.0-2fd2b49-$(PLATFORM)64.zip
+	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcblender-python-39-v0.6.0-f14d349-$(PLATFORM)64.zip
 endif
 	cd dist/working && unzip ifcblender*
 	cp -r dist/working/io_import_scene_ifc/ifcopenshell dist/blenderbim/libs/site/packages/
@@ -44,6 +44,8 @@ endif
 	# IfcOpenBot sometimes lags behind, so we hotfix the Python utilities
 	cp -r dist/working/IfcOpenShell-0.6.0/src/ifcopenshell-python/ifcopenshell/util/* dist/blenderbim/libs/site/packages/ifcopenshell/util/
 	cp -r dist/working/IfcOpenShell-0.6.0/src/ifcopenshell-python/ifcopenshell/api/* dist/blenderbim/libs/site/packages/ifcopenshell/api/
+	cp dist/working/IfcOpenShell-0.6.0/src/ifcopenshell-python/ifcopenshell/entity_instance.py dist/blenderbim/libs/site/packages/ifcopenshell/
+	cp dist/working/IfcOpenShell-0.6.0/src/ifcopenshell-python/ifcopenshell/file.py dist/blenderbim/libs/site/packages/ifcopenshell/
 	# Provides bcf functionality
 	cp -r dist/working/IfcOpenShell-0.6.0/src/bcf/bcf dist/blenderbim/libs/site/packages/
 	# Provides IFCClash functionality

src/blenderbim/blenderbim/bim/__init__.py

@@ -29,8 +29,10 @@ if bpy is not None:
         "cost": None,
         "sequence": None,
         "group": None,
+        "system": None,
         "structural": None,
         "boundary": None,
+        "profile": None,
         "material": None,
         "style": None,
         "layer": None,

src/blenderbim/blenderbim/bim/export_ifc.py

@@ -68,6 +68,8 @@ class IfcExporter:
 
         for ifc_definition_id, obj in IfcStore.id_map.items():
             try:
+                if isinstance(obj, bpy.types.Material):
+                    continue
                 self.sync_object_placement(obj)
                 self.sync_object_container(ifc_definition_id, obj)
             except ReferenceError:
@@ -87,7 +89,10 @@ class IfcExporter:
             if not obj:
                 continue
             try:
-                bpy.ops.bim.update_representation(obj=obj.name)
+                if isinstance(obj, bpy.types.Material):
+                    bpy.ops.bim.update_style_colours(material=obj.name)
+                else:
+                    bpy.ops.bim.update_representation(obj=obj.name)
             except ReferenceError:
                 pass  # The object is likely deleted
         IfcStore.edited_objs.clear()

src/blenderbim/blenderbim/bim/handler.py

@@ -6,6 +6,7 @@ from bpy.app.handlers import persistent
 from blenderbim.bim.ifc import IfcStore
 from ifcopenshell.api.attribute.data import Data as AttributeData
 from ifcopenshell.api.material.data import Data as MaterialData
+from ifcopenshell.api.style.data import Data as StyleData
 from ifcopenshell.api.type.data import Data as TypeData
 
 
@@ -13,6 +14,8 @@ global_subscription_owner = object()
 
 
 def mode_callback(obj, data):
+    if not bpy.context.scene.BIMProjectProperties.is_authoring:
+        return
     objects = bpy.context.selected_objects
     if bpy.context.active_object:
         objects += [bpy.context.active_object]
@@ -22,9 +25,8 @@ def mode_callback(obj, data):
             or not obj.data
             or not isinstance(obj.data, (bpy.types.Mesh, bpy.types.Curve, bpy.types.TextCurve))
             or not obj.BIMObjectProperties.ifc_definition_id
-            or not bpy.context.scene.BIMProjectProperties.is_authoring
         ):
-            return
+            continue
         if obj.data.BIMMeshProperties.ifc_definition_id:
             representation = IfcStore.get_file().by_id(obj.data.BIMMeshProperties.ifc_definition_id)
             if representation.RepresentationType in ["Tessellation", "Brep", "Annotation2D"]:
@@ -34,6 +36,7 @@ def mode_callback(obj, data):
 
 
 def name_callback(obj, data):
+    # TODO Do we still need this, now that we are monitoring the undo redo objects?
     try:
         obj.name
     except:
@@ -49,6 +52,7 @@ def name_callback(obj, data):
             MaterialData.load_materials()
         if obj.BIMMaterialProperties.ifc_style_id:
             IfcStore.get_file().by_id(obj.BIMMaterialProperties.ifc_style_id).Name = obj.name
+            StyleData.load(IfcStore.get_file(), obj.BIMMaterialProperties.ifc_style_id)
         return
 
     if not obj.BIMObjectProperties.ifc_definition_id or "/" not in obj.name:
@@ -75,6 +79,11 @@ def name_callback(obj, data):
     AttributeData.load(IfcStore.get_file(), obj.BIMObjectProperties.ifc_definition_id)
 
 
+def color_callback(obj, data):
+    if obj.BIMMaterialProperties.ifc_style_id:
+        IfcStore.edited_objs.add(obj)
+
+
 def active_object_callback():
     obj = bpy.context.active_object
     for obj in bpy.context.selected_objects:
@@ -122,12 +131,12 @@ def purge_module_data():
 @persistent
 def loadIfcStore(scene):
     IfcStore.purge()
+    purge_module_data()
     ifc_file = IfcStore.get_file()
     if not ifc_file:
         return
     IfcStore.get_schema()
     IfcStore.reload_linked_elements()
-    purge_module_data()
 
 
 @persistent

src/blenderbim/blenderbim/bim/ifc.py

@@ -114,9 +114,19 @@ class IfcStore:
         IfcStore.id_map[element.id()] = obj
         if hasattr(element, "GlobalId"):
             IfcStore.guid_map[element.GlobalId] = obj
-        obj.BIMObjectProperties.ifc_definition_id = element.id()
-        blenderbim.bim.handler.subscribe_to(obj, "mode", blenderbim.bim.handler.mode_callback)
+
+        if element.is_a("IfcSurfaceStyle"):
+            obj.BIMMaterialProperties.ifc_style_id = element.id()
+        else:
+            obj.BIMObjectProperties.ifc_definition_id = element.id()
+
         blenderbim.bim.handler.subscribe_to(obj, "name", blenderbim.bim.handler.name_callback)
+
+        if isinstance(obj, bpy.types.Material):
+            blenderbim.bim.handler.subscribe_to(obj, "diffuse_color", blenderbim.bim.handler.color_callback)
+        elif isinstance(obj, bpy.types.Object):
+            blenderbim.bim.handler.subscribe_to(obj, "mode", blenderbim.bim.handler.mode_callback)
+
         for listener in IfcStore.element_listeners:
             listener(element, obj)
 
@@ -140,6 +150,10 @@ class IfcStore:
             IfcStore.guid_map[data["guid"]] = obj
         blenderbim.bim.handler.subscribe_to(obj, "mode", blenderbim.bim.handler.mode_callback)
         blenderbim.bim.handler.subscribe_to(obj, "name", blenderbim.bim.handler.name_callback)
+        if isinstance(obj, bpy.types.Material):
+            blenderbim.bim.handler.subscribe_to(obj, "diffuse_color", blenderbim.bim.handler.color_callback)
+        # TODO Listeners are not re-registered. Does this cause nasty problems to debug later on?
+        # TODO We're handling id_map and guid_map, but what about edited_objs? This might cause big problems.
 
     @staticmethod
     def unlink_element(element=None, obj=None):

src/blenderbim/blenderbim/bim/import_ifc.py

@@ -54,9 +54,28 @@ class MaterialCreator:
         if not self.mesh or self.mesh.name in self.parsed_meshes:
             return
         self.parsed_meshes.add(self.mesh.name)
+        self.add_default_material(element)
         if self.parse_representations(element):
             self.assign_material_slots_to_faces()
 
+    def add_default_material(self, element):
+        element_material = ifcopenshell.util.element.get_material(element)
+        if not element_material:
+            return
+        for material in [m for m in self.ifc_importer.file.traverse(element_material) if m.is_a("IfcMaterial")]:
+            if not material.HasRepresentation:
+                continue
+            surface_style = [
+                s for s in self.ifc_importer.file.traverse(material.HasRepresentation[0]) if s.is_a("IfcSurfaceStyle")
+            ]
+            if surface_style:
+                self.mesh.materials.append(self.styles[surface_style[0].id()])
+                return
+        # For authoring convenience, we choose to assign a material, even if it has no surface style. See #1585.
+        for material in [m for m in self.ifc_importer.file.traverse(element_material) if m.is_a("IfcMaterial")]:
+            self.mesh.materials.append(self.materials[material.id()])
+            return
+
     def load_existing_materials(self):
         for material in bpy.data.materials:
             if material.BIMObjectProperties.ifc_definition_id:
@@ -139,7 +158,7 @@ class IfcImporter:
         self.exclude_elements = set()
         self.project = None
         self.spatial_structure_elements = {}
-        self.elements = {}
+        self.elements = []
         self.type_collection = None
         self.type_products = {}
         self.openings = {}
@@ -159,8 +178,16 @@ class IfcImporter:
             self.time = time.time()
         print("{} :: {:.2f}".format(message, time.time() - self.time))
         self.time = time.time()
+        self.update_progress(self.progress + 1)
+
+    def update_progress(self, progress):
+        if progress <= 100:
+            self.progress = progress
+        bpy.context.window_manager.progress_update(self.progress)
 
     def execute(self):
+        bpy.context.window_manager.progress_begin(0, 100)
+        self.progress = 0
         self.profile_code("Starting import process")
         self.load_diff()
         self.profile_code("Load diff")
@@ -200,7 +227,7 @@ class IfcImporter:
         self.profile_code("Create native products")
         self.create_products()
         self.profile_code("Create products")
-        self.create_empty_products()
+        self.create_empty_and_2d_elements()
         self.profile_code("Create empty products")
         self.create_type_products()
         self.profile_code("Create type products")
@@ -228,6 +255,8 @@ class IfcImporter:
             self.profile_code("Mesh cleaning")
         self.set_default_context()
         self.profile_code("Setting default context")
+        self.update_progress(100)
+        bpy.context.window_manager.progress_end()
 
     def is_element_far_away(self, element, is_meters=True):
         try:
@@ -322,10 +351,10 @@ class IfcImporter:
             return
         project = self.file.by_type("IfcProject")[0]
         site = self.find_decomposed_ifc_class(project, "IfcSite")
-        if site and self.is_element_far_away(site[0]):
+        if site and self.is_element_far_away(site[0], is_meters=False):
             return self.guess_georeferencing(site[0])
         building = self.find_decomposed_ifc_class(project, "IfcBuilding")
-        if building and self.is_element_far_away(building[0]):
+        if building and self.is_element_far_away(building[0], is_meters=False):
             return self.guess_georeferencing(building[0])
         return self.guess_absolute_coordinate()
 
@@ -450,7 +479,6 @@ class IfcImporter:
             grid_collection.objects.link(obj)
 
     def create_type_products(self):
-        type_products = self.file.by_type("IfcTypeProduct")
         for collection in self.project["blender"].children:
             if collection.name == "Types":
                 self.type_collection = collection
@@ -458,7 +486,15 @@ class IfcImporter:
         if not self.type_collection:
             self.type_collection = bpy.data.collections.new("Types")
             self.project["blender"].children.link(self.type_collection)
+
+        if self.filter_mode in ["WHITELIST", "BLACKLIST"]:
+            type_products = set([ifcopenshell.util.element.get_type(e) for e in self.elements])
+        else:
+            type_products = self.file.by_type("IfcTypeProduct")
+
         for type_product in type_products:
+            if not type_product:
+                continue
             self.create_type_product(type_product)
 
     def create_type_product(self, element):
@@ -546,12 +582,20 @@ class IfcImporter:
         if not valid_file:
             return False
         checkpoint = time.time()
-        total = 0
+        total_created = 0
+        approx_total_products = len(self.include_elements) or len(self.file.by_type("IfcElement"))
+        start_progress = self.progress
+        progress_range = 85 - start_progress
         while True:
-            total += 1
-            if total % 250 == 0:
-                print("{} elements processed in {:.2f}s ...".format(total, time.time() - checkpoint))
+            if total_created % 250 == 0:
+                print(
+                    "{} / ~{} elements processed in {:.2f}s ...".format(
+                        total_created, approx_total_products, time.time() - checkpoint
+                    )
+                )
                 checkpoint = time.time()
+                if approx_total_products:
+                    self.update_progress(((total_created / approx_total_products) * progress_range) + start_progress)
             shape = iterator.get()
             if shape:
                 product = self.file.by_id(shape.guid)
@@ -565,18 +609,32 @@ class IfcImporter:
                     pass
                 else:
                     self.create_product(product, shape)
+                    total_created += 1
             if not iterator.next():
                 break
         print("Done creating geometry")
 
-    def create_empty_products(self):
-        for element in self.file.by_type("IfcProduct"):
+    def create_empty_and_2d_elements(self):
+        curve_products = []
+
+        if self.filter_mode == "WHITELIST":
+            self.elements = self.include_elements
+        elif self.filter_mode == "BLACKLIST":
+            self.elements = [e for e in self.file.by_type("IfcElement") if e not in self.exclude_elements]
+        else:
+            self.elements = self.file.by_type("IfcElement")
+
+        for element in self.elements:
             if element.id() in self.added_data:
                 continue
             if element.is_a("IfcPort"):
                 continue
             if not element.Representation:
                 self.create_product(element)
+            else:
+                curve_products.append(element)
+        if curve_products:
+            self.create_curve_products(curve_products)
 
     def create_annotation(self):
         self.create_curve_products(self.file.by_type("IfcAnnotation"))
@@ -911,7 +969,6 @@ class IfcImporter:
 
     def set_ifc_file(self):
         bpy.context.scene.BIMProperties.ifc_file = self.ifc_import_settings.input_file
-        IfcStore.file = self.file
         IfcStore.path = self.ifc_import_settings.input_file
 
     def calculate_unit_scale(self):

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

@@ -17,7 +17,7 @@ class AssignObject(bpy.types.Operator):
     def _execute(self, context):
         self.file = IfcStore.get_file()
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         relating_object = bpy.data.objects.get(self.relating_object)
         if not relating_object or not relating_object.BIMObjectProperties.ifc_definition_id:
@@ -40,7 +40,7 @@ class AssignObject(bpy.types.Operator):
             spatial_collection = bpy.data.collections.get(related_object.name)
             relating_collection = bpy.data.collections.get(relating_object.name)
             if spatial_collection:
-                self.remove_collection(bpy.context.scene.collection, spatial_collection)
+                self.remove_collection(context.scene.collection, spatial_collection)
                 for collection in bpy.data.collections:
                     if collection == relating_collection:
                         if not collection.children.get(spatial_collection.name):
@@ -67,8 +67,8 @@ class EnableEditingAggregate(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.active_object.BIMObjectProperties.relating_object = None
-        bpy.context.active_object.BIMObjectProperties.is_editing_aggregate = True
+        context.active_object.BIMObjectProperties.relating_object = None
+        context.active_object.BIMObjectProperties.is_editing_aggregate = True
         return {"FINISHED"}
 
 
@@ -79,7 +79,7 @@ class DisableEditingAggregate(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         obj.BIMObjectProperties.is_editing_aggregate = False
         return {"FINISHED"}
 
@@ -94,9 +94,9 @@ class AddAggregate(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         aggregate_collection = bpy.data.collections.new("IfcElementAssembly/Assembly")
-        bpy.context.scene.collection.children.link(aggregate_collection)
+        context.scene.collection.children.link(aggregate_collection)
         aggregate = bpy.data.objects.new("Assembly", None)
         aggregate_collection.objects.link(aggregate)
         bpy.ops.bim.assign_class(obj=aggregate.name, ifc_class="IfcElementAssembly")

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

@@ -104,12 +104,6 @@ class EditAttributes(bpy.types.Operator):
         ifcopenshell.api.run(
             "attribute.edit_attributes", self.file, **{"product": product, "attributes": attributes}
         )
-        if "Name" in attributes:
-            new_name = "{}/{}".format(product.is_a(), product.Name or "Unnamed")
-            collection = bpy.data.collections.get(obj.name)
-            if collection:
-                collection.name = new_name
-            obj.name = new_name
         Data.load(IfcStore.get_file(), oprops.ifc_definition_id)
         bpy.ops.bim.disable_editing_attributes(obj=obj.name, obj_type=self.obj_type)
         return {"FINISHED"}
@@ -121,11 +115,11 @@ class GenerateGlobalId(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        index = bpy.context.active_object.BIMAttributeProperties.attributes.find("GlobalId")
+        index = context.active_object.BIMAttributeProperties.attributes.find("GlobalId")
         if index >= 0:
-            global_id = bpy.context.active_object.BIMAttributeProperties.attributes[index]
+            global_id = context.active_object.BIMAttributeProperties.attributes[index]
         else:
-            global_id = bpy.context.active_object.BIMAttributeProperties.attributes.add()
+            global_id = context.active_object.BIMAttributeProperties.attributes.add()
         global_id.name = "GlobalId"
         global_id.data_type = "string"
         global_id.string_value = ifcopenshell.guid.new()

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

@@ -16,7 +16,7 @@ class AuginLogin(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        props = bpy.context.scene.AuginProperties
+        props = context.scene.AuginProperties
 
         url = "https://server.auge.pro.br/API/v3/augin_rest.php/user_login"
         payload = {"email": props.username, "password": props.password}
@@ -36,7 +36,7 @@ class AuginReset(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        props = bpy.context.scene.AuginProperties
+        props = context.scene.AuginProperties
         props.is_success = False
         return {"FINISHED"}
 
@@ -49,7 +49,7 @@ class AuginCreateNewModel(bpy.types.Operator):
     def execute(self, context):
         import boto3
         from botocore.config import Config
-        props = bpy.context.scene.AuginProperties
+        props = context.scene.AuginProperties
 
         # Create project
         url = "https://server.auge.pro.br/API/v3/augin_rest.php/new_model"
@@ -113,7 +113,7 @@ class AuginCreateNewModel(bpy.types.Operator):
         context.scene.render.image_settings.file_format = old_file_format
         context.scene.render.filepath = old_filepath
 
-        client.upload_file(bpy.context.scene.BIMProperties.ifc_file, result["s3_bucket"], result["model_path"])
+        client.upload_file(context.scene.BIMProperties.ifc_file, result["s3_bucket"], result["model_path"])
         client.upload_file(thumb_path, result["s3_bucket"], result["thumb_path"])
 
 
@@ -121,8 +121,8 @@ class AuginCreateNewModel(bpy.types.Operator):
         url = "https://server.auge.pro.br/API/v3/augin_rest.php/files_uploaded"
         payload = {
             "user_token": props.token,
-            "ifc_filesize": os.path.getsize(bpy.context.scene.BIMProperties.ifc_file),
-            "model_filesize": os.path.getsize(bpy.context.scene.BIMProperties.ifc_file),
+            "ifc_filesize": os.path.getsize(context.scene.BIMProperties.ifc_file),
+            "model_filesize": os.path.getsize(context.scene.BIMProperties.ifc_file),
             "thumb_filesize": os.path.getsize(thumb_path),
             "model_upload_path": result["model_path"],
             "thumb_upload_path": result["thumb_path"],

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

@@ -28,7 +28,7 @@ class BIM_PT_augin(bpy.types.Panel):
         row = layout.row()
         row.label(text="Logged in as " + props.username)
 
-        if not bpy.context.scene.BIMProperties.ifc_file:
+        if not context.scene.BIMProperties.ifc_file:
             row = layout.row()
             row.label(text="No IFC Found")
             return

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

@@ -14,11 +14,11 @@ class NewBcfProject(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.scene.BCFProperties.is_loaded = False
+        context.scene.BCFProperties.is_loaded = False
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         bcfxml.new_project()
         bpy.ops.bim.load_bcf_project()
-        bpy.context.scene.BCFProperties.is_loaded = True
+        context.scene.BCFProperties.is_loaded = True
         return {"FINISHED"}
 
 
@@ -30,14 +30,14 @@ class LoadBcfProject(bpy.types.Operator):
     filter_glob: bpy.props.StringProperty(default="*.bcf;*.bcfzip", options={"HIDDEN"})
 
     def execute(self, context):
-        bpy.context.scene.BCFProperties.is_loaded = False
+        context.scene.BCFProperties.is_loaded = False
         if self.filepath:
             bcfstore.BcfStore.bcfxml = bcf.bcfxml.load(self.filepath)
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         bcfxml.get_project()
-        bpy.context.scene.BCFProperties.name = bcfxml.project.name
+        context.scene.BCFProperties.name = bcfxml.project.name
         bpy.ops.bim.load_bcf_topics()
-        bpy.context.scene.BCFProperties.is_loaded = True
+        context.scene.BCFProperties.is_loaded = True
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -53,11 +53,11 @@ class LoadBcfTopics(bpy.types.Operator):
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         bcfxml.get_topics()
-        while len(bpy.context.scene.BCFProperties.topics) > 0:
-            bpy.context.scene.BCFProperties.topics.remove(0)
+        while len(context.scene.BCFProperties.topics) > 0:
+            context.scene.BCFProperties.topics.remove(0)
         index = 0
         for topic_guid in bcfxml.topics.keys():
-            new = bpy.context.scene.BCFProperties.topics.add()
+            new = context.scene.BCFProperties.topics.add()
             bpy.ops.bim.load_bcf_topic(topic_guid = topic_guid, topic_index = index)
             index += 1
         return {"FINISHED"}
@@ -73,7 +73,7 @@ class LoadBcfTopic(bpy.types.Operator):
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         topic = bcfxml.get_topic(self.topic_guid)
-        new = bpy.context.scene.BCFProperties.topics[self.topic_index]
+        new = context.scene.BCFProperties.topics[self.topic_index]
         data_map = {
             "name": topic.guid,
             "title": topic.title,
@@ -143,7 +143,7 @@ class LoadBcfComments(bpy.types.Operator):
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         bcfxml.get_comments(self.topic_guid)
-        blender_topic = bpy.context.scene.BCFProperties.topics.get(self.topic_guid)
+        blender_topic = context.scene.BCFProperties.topics.get(self.topic_guid)
         while len(blender_topic.comments) > 0:
             blender_topic.comments.remove(0)
         for comment in bcfxml.topics[self.topic_guid].comments.values():
@@ -170,7 +170,7 @@ class EditBcfProjectName(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        bcfxml.project.name = bpy.context.scene.BCFProperties.name
+        bcfxml.project.name = context.scene.BCFProperties.name
         bcfxml.edit_project()
         return {"FINISHED"}
 
@@ -182,7 +182,7 @@ class EditBcfAuthor(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        bcfxml.author = bpy.context.scene.BCFProperties.author
+        bcfxml.author = context.scene.BCFProperties.author
         return {"FINISHED"}
 
 
@@ -192,7 +192,7 @@ class EditBcfTopicName(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         topic = bcfxml.topics[blender_topic.name]
@@ -207,7 +207,7 @@ class EditBcfTopic(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         bcfxml = bcfstore.BcfStore.get_bcfxml()
 
@@ -250,7 +250,7 @@ class AddBcfTopic(bpy.types.Operator):
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         bcfxml.add_topic()
-        new = bpy.context.scene.BCFProperties.topics.add()
+        new = context.scene.BCFProperties.topics.add()
         new.name = "New Topic"
         bpy.ops.bim.load_bcf_topics()
         return {"FINISHED"}
@@ -263,7 +263,7 @@ class AddBcfBimSnippet(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         bim_snippet = bcf.v2.data.BimSnippet()
@@ -282,7 +282,7 @@ class AddBcfRelatedTopic(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         related_topic = None
         for topic in bcfxml.topics.values():
@@ -306,7 +306,7 @@ class AddBcfHeaderFile(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         header_file = bcf.v2.data.HeaderFile()
@@ -329,9 +329,9 @@ class ViewBcfTopic(bpy.types.Operator):
     topic_guid: bpy.props.StringProperty()
 
     def execute(self, context):
-        for index, topic in enumerate(bpy.context.scene.BCFProperties.topics):
+        for index, topic in enumerate(context.scene.BCFProperties.topics):
             if topic.guid.lower() == self.topic_guid.lower():
-                bpy.context.scene.BCFProperties.active_topic_index = index
+                context.scene.BCFProperties.active_topic_index = index
         return {"FINISHED"}
 
 
@@ -341,44 +341,44 @@ class AddBcfViewpoint(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        if not bpy.context.scene.camera:
+        if not context.scene.camera:
             return {"FINISHED"}
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         viewpoint = bcf.v2.data.Viewpoint()
 
-        if bpy.context.scene.camera.data.type == "ORTHO":
+        if context.scene.camera.data.type == "ORTHO":
             camera = bcf.v2.data.OrthogonalCamera()
-            camera.view_to_world_scale = bpy.context.scene.camera.data.ortho_scale
+            camera.view_to_world_scale = context.scene.camera.data.ortho_scale
             viewpoint.orthogonal_camera = camera
-        elif bpy.context.scene.camera.data.type == "PERSP":
+        elif context.scene.camera.data.type == "PERSP":
             camera = bcf.v2.data.PerspectiveCamera()
-            camera.field_of_view = degrees(bpy.context.scene.camera.data.angle)
+            camera.field_of_view = degrees(context.scene.camera.data.angle)
             viewpoint.perspective_camera = camera
-        camera.camera_view_point.x = bpy.context.scene.camera.location.x
-        camera.camera_view_point.y = bpy.context.scene.camera.location.y
-        camera.camera_view_point.z = bpy.context.scene.camera.location.z
-        direction = bpy.context.scene.camera.matrix_world.to_quaternion() @ Vector((0.0, 0.0, -1.0))
+        camera.camera_view_point.x = context.scene.camera.location.x
+        camera.camera_view_point.y = context.scene.camera.location.y
+        camera.camera_view_point.z = context.scene.camera.location.z
+        direction = context.scene.camera.matrix_world.to_quaternion() @ Vector((0.0, 0.0, -1.0))
         camera.camera_direction.x = direction.x
         camera.camera_direction.y = direction.y
         camera.camera_direction.z = direction.z
-        up = bpy.context.scene.camera.matrix_world.to_quaternion() @ Vector((0.0, 1.0, 0.0))
+        up = context.scene.camera.matrix_world.to_quaternion() @ Vector((0.0, 1.0, 0.0))
         camera.camera_up_vector.x = up.x
         camera.camera_up_vector.y = up.y
         camera.camera_up_vector.z = up.z
 
-        old_file_format = bpy.context.scene.render.image_settings.file_format
-        bpy.context.scene.render.image_settings.file_format = "PNG"
-        old_filepath = bpy.context.scene.render.filepath
-        bpy.context.scene.render.filepath = os.path.join(bpy.context.scene.BIMProperties.data_dir, "snapshot.png")
+        old_file_format = context.scene.render.image_settings.file_format
+        context.scene.render.image_settings.file_format = "PNG"
+        old_filepath = context.scene.render.filepath
+        context.scene.render.filepath = os.path.join(context.scene.BIMProperties.data_dir, "snapshot.png")
         bpy.ops.render.opengl(write_still=True)
-        viewpoint.snapshot = bpy.context.scene.render.filepath
+        viewpoint.snapshot = context.scene.render.filepath
 
         bcfxml.add_viewpoint(topic, viewpoint)
-        bpy.context.scene.render.filepath = old_filepath
-        bpy.context.scene.render.image_settings.file_format = old_file_format
+        context.scene.render.filepath = old_filepath
+        context.scene.render.image_settings.file_format = old_file_format
         props.active_topic_index = props.active_topic_index # refreshes the BCF Topic
         return {"FINISHED"}
 
@@ -390,7 +390,7 @@ class RemoveBcfViewpoint(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         viewpoint_guid = blender_topic.viewpoints
         topic = bcfxml.topics[blender_topic.name]
@@ -407,7 +407,7 @@ class RemoveBcfFile(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         bcfxml.delete_file(topic, self.index)
@@ -422,7 +422,7 @@ class AddBcfReferenceLink(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         if not blender_topic.reference_link:
@@ -441,7 +441,7 @@ class AddBcfDocumentReference(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         if not blender_topic.document_reference:
@@ -463,7 +463,7 @@ class AddBcfLabel(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         if not blender_topic.label:
@@ -483,7 +483,7 @@ class EditBcfReferenceLinks(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         for index, reference_link in enumerate(topic.reference_links):
@@ -501,7 +501,7 @@ class EditBcfLabels(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         for index, label in enumerate(blender_topic.labels):
@@ -520,7 +520,7 @@ class RemoveBcfReferenceLink(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         del topic.reference_links[self.index]
@@ -537,7 +537,7 @@ class RemoveBcfLabel(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         del topic.labels[self.index]
@@ -553,7 +553,7 @@ class RemoveBcfBimSnippet(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         bcfxml.delete_bim_snippet(topic)
@@ -571,7 +571,7 @@ class RemoveBcfDocumentReference(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         bcfxml.delete_document_reference(topic, self.index)
@@ -587,7 +587,7 @@ class RemoveBcfRelatedTopic(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         del topic.related_topics[self.index]
@@ -604,7 +604,7 @@ class RemoveBcfComment(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         bcfxml.delete_comment(self.comment_guid, topic)
@@ -620,7 +620,7 @@ class EditBcfComment(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         blender_comment = blender_topic.comments.get(self.comment_guid)
         topic = bcfxml.topics[blender_topic.name]
@@ -639,7 +639,7 @@ class AddBcfComment(bpy.types.Operator):
 
     def execute(self, context):
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         if not blender_topic.comment:
@@ -662,7 +662,7 @@ class ActivateBcfViewpoint(bpy.types.Operator):
     def execute(self, context):
         self.file = IfcStore.get_file()
         bcfxml = bcfstore.BcfStore.get_bcfxml()
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         blender_topic = props.topics[props.active_topic_index]
         topic = bcfxml.topics[blender_topic.name]
         if not topic.viewpoints:
@@ -673,11 +673,11 @@ class ActivateBcfViewpoint(bpy.types.Operator):
         obj = bpy.data.objects.get("Viewpoint")
         if not obj:
             obj = bpy.data.objects.new("Viewpoint", bpy.data.cameras.new("Viewpoint"))
-            bpy.context.scene.collection.objects.link(obj)
-            bpy.context.scene.camera = obj
+            context.scene.collection.objects.link(obj)
+            context.scene.camera = obj
 
-        cam_width = bpy.context.scene.render.resolution_x
-        cam_height = bpy.context.scene.render.resolution_y
+        cam_width = context.scene.render.resolution_x
+        cam_height = context.scene.render.resolution_y
         cam_aspect = cam_width / cam_height
 
         if viewpoint.snapshot:
@@ -697,7 +697,7 @@ class ActivateBcfViewpoint(bpy.types.Operator):
             else:
                 background.frame_method = "CROP"
             background.display_depth = "FRONT"
-        area = next(area for area in bpy.context.screen.areas if area.type == "VIEW_3D")
+        area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
         area.spaces[0].region_3d.view_perspective = "CAMERA"
 
         if viewpoint.orthogonal_camera:
@@ -719,13 +719,13 @@ class ActivateBcfViewpoint(bpy.types.Operator):
         if gp:
             bpy.data.grease_pencils.remove(gp)
         if viewpoint.lines:
-            self.draw_lines(viewpoint)
+            self.draw_lines(viewpoint, context)
 
-        self.delete_clipping_planes()
+        self.delete_clipping_planes(context)
         if viewpoint.clipping_planes:
             self.create_clipping_planes(viewpoint)
 
-        self.delete_bitmaps()
+        self.delete_bitmaps(context)
         if viewpoint.bitmaps:
             self.create_bitmaps(bcfxml, viewpoint, topic)
 
@@ -776,9 +776,9 @@ class ActivateBcfViewpoint(bpy.types.Operator):
             if global_id in global_id_colours:
                 obj.color = self.hex_to_rgb(global_id_colours[global_id])
 
-    def draw_lines(self, viewpoint):
+    def draw_lines(self, viewpoint, context):
         gp = bpy.data.grease_pencils.new("BCF")
-        scene = bpy.context.scene
+        scene = context.scene
         scene.grease_pencil = gp
         scene.frame_set(1)
         layer = gp.layers.new("BCF Annotation", set_active=True)
@@ -808,19 +808,19 @@ class ActivateBcfViewpoint(bpy.types.Operator):
             )
             n += 1
 
-    def delete_clipping_planes(self):
+    def delete_clipping_planes(self, context):
         collection = bpy.data.collections.get("Sections")
         if not collection:
             return
         for section in collection.objects:
-            bpy.context.view_layer.objects.active = section
+            context.view_layer.objects.active = section
             bpy.ops.bim.remove_section_plane()
 
-    def delete_bitmaps(self):
+    def delete_bitmaps(self, context):
         collection = bpy.data.collections.get("Bitmaps")
         if not collection:
             collection = bpy.data.collections.new("Bitmaps")
-            bpy.context.scene.collection.children.link(collection)
+            context.scene.collection.children.link(collection)
         for bitmap in collection.objects:
             bpy.data.objects.remove(bitmap)
 
@@ -860,7 +860,7 @@ class OpenBcfReferenceLink(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        webbrowser.open(bpy.context.scene.BCFProperties.topic_links[self.index].name)
+        webbrowser.open(context.scene.BCFProperties.topic_links[self.index].name)
         return {"FINISHED"}
 
 
@@ -872,7 +872,7 @@ class SelectBcfHeaderFile(bpy.types.Operator):
 
     def execute(self, context):
         if self.filepath:
-            props = bpy.context.scene.BCFProperties
+            props = context.scene.BCFProperties
             topic = props.topics[props.active_topic_index]
             topic.file_reference = self.filepath
         return {"FINISHED"}
@@ -890,7 +890,7 @@ class SelectBcfBimSnippetReference(bpy.types.Operator):
 
     def execute(self, context):
         if self.filepath:
-            props = bpy.context.scene.BCFProperties
+            props = context.scene.BCFProperties
             topic = props.topics[props.active_topic_index]
             topic.bim_snippet_reference = self.filepath
         return {"FINISHED"}
@@ -908,7 +908,7 @@ class SelectBcfDocumentReference(bpy.types.Operator):
 
     def execute(self, context):
         if self.filepath:
-            props = bpy.context.scene.BCFProperties
+            props = context.scene.BCFProperties
             topic = props.topics[props.active_topic_index]
             topic.document_reference = self.filepath
         return {"FINISHED"}

src/blenderbim/blenderbim/bim/module/bcf/prop.py

@@ -23,37 +23,37 @@ def purge():
 
 
 def updateBcfReferenceLink(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded:
+    if context.scene.BCFProperties.is_loaded:
         bpy.ops.bim.edit_bcf_reference_links()
 
 
 def updateBcfLabel(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded:
+    if context.scene.BCFProperties.is_loaded:
         bpy.ops.bim.edit_bcf_labels()
 
 
 def updateBcfProjectName(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded:
+    if context.scene.BCFProperties.is_loaded:
         bpy.ops.bim.edit_bcf_project_name()
 
 
 def updateBcfAuthor(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded:
+    if context.scene.BCFProperties.is_loaded:
         bpy.ops.bim.edit_bcf_author()
 
 
 def updateBcfTopicName(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded:
+    if context.scene.BCFProperties.is_loaded:
         bpy.ops.bim.edit_bcf_topic_name()
 
 
 def updateBcfTopicIsEditable(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded and not self.is_editable:
+    if context.scene.BCFProperties.is_loaded and not self.is_editable:
         bpy.ops.bim.edit_bcf_topic()
 
 
 def updateBcfCommentIsEditable(self, context):
-    if bpy.context.scene.BCFProperties.is_loaded and not self.is_editable:
+    if context.scene.BCFProperties.is_loaded and not self.is_editable:
         bpy.ops.bim.edit_bcf_comment(comment_guid = self.name)
 
 
@@ -61,7 +61,7 @@ def refreshBcfTopic(self, context):
     global bcfviewpoints_enum
     bcfviewpoints_enum = None
 
-    props = bpy.context.scene.BCFProperties
+    props = context.scene.BCFProperties
     bcfxml = bcfstore.BcfStore.get_bcfxml()
     topic = props.topics[props.active_topic_index]
     header = bcfxml.get_header(topic.name)
@@ -80,7 +80,7 @@ def getBcfViewpoints(self, context):
     global bcfviewpoints_enum
     if bcfviewpoints_enum is None:
         bcfviewpoints_enum = []
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         bcfxml = bcfstore.BcfStore.get_bcfxml()
         topic = props.topics[props.active_topic_index]
         viewpoints = bcfxml.get_viewpoints(topic.name)

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

@@ -17,7 +17,7 @@ class BIM_PT_bcf(Panel):
         layout.use_property_decorate = False
 
         scene = context.scene
-        props = bpy.context.scene.BCFProperties
+        props = scene.BCFProperties
 
         row = layout.row(align=True)
         row.operator("bim.new_bcf_project", text="New Project")
@@ -34,7 +34,7 @@ class BIM_PT_bcf(Panel):
         row = layout.row()
         row.prop(props, "author")
 
-        props = bpy.context.scene.BCFProperties
+        props = context.scene.BCFProperties
         row = layout.row()
         row.template_list("BIM_UL_topics", "", props, "topics", props, "active_topic_index")
         col = row.column(align=True)
@@ -93,7 +93,7 @@ class BIM_PT_bcf_metadata(Panel):
         layout.use_property_decorate = False
 
         scene = context.scene
-        props = bpy.context.scene.BCFProperties
+        props = scene.BCFProperties
 
         if props.active_topic_index >= len(props.topics):
             layout.label(text="No BCF project is loaded")
@@ -236,7 +236,7 @@ class BIM_PT_bcf_comments(Panel):
         layout.use_property_decorate = False
 
         scene = context.scene
-        props = bpy.context.scene.BCFProperties
+        props = scene.BCFProperties
 
         if props.active_topic_index >= len(props.topics):
             layout.label(text="No BCF project is loaded")

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

@@ -52,11 +52,11 @@ class BIMTesterPurge(bpy.types.Operator):
 
     def execute(self, context):
         filename = os.path.join(
-            bpy.context.scene.BimTesterProperties.features_dir,
-            bpy.context.scene.BimTesterProperties.features_file + ".feature",
+            context.scene.BimTesterProperties.features_dir,
+            context.scene.BimTesterProperties.features_file + ".feature",
         )
         cwd = os.getcwd()
-        os.chdir(bpy.context.scene.BimTesterProperties.features_dir)
+        os.chdir(context.scene.BimTesterProperties.features_dir)
         bimtester.clean.TestPurger().purge()
         os.chdir(cwd)
         return {"FINISHED"}
@@ -71,7 +71,7 @@ class SelectFeature(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.BimTesterProperties.feature = self.filepath
+        context.scene.BimTesterProperties.feature = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -88,7 +88,7 @@ class SelectSteps(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.BimTesterProperties.steps = self.filepath
+        context.scene.BimTesterProperties.steps = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -120,14 +120,14 @@ class RejectElement(bpy.types.Operator):
     def execute(self, context):
         lines = []
         self.file = IfcStore.get_file()
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             lines.append(
                 " * The element {} should not exist because {}".format(
                     self.file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId,
-                    bpy.context.scene.BimTesterProperties.qa_reject_element_reason,
+                    context.scene.BimTesterProperties.qa_reject_element_reason,
                 )
             )
-        QAHelper.append_to_scenario(lines)
+        QAHelper.append_to_scenario(lines, context)
         return {"FINISHED"}
 
 
@@ -138,12 +138,12 @@ class ApproveClass(bpy.types.Operator):
     def execute(self, context):
         lines = []
         self.file = IfcStore.get_file()
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
             lines.append(" * The element {} is an {}".format(element.GlobalId, element.is_a()))
-        QAHelper.append_to_scenario(lines)
+        QAHelper.append_to_scenario(lines, context)
         return {"FINISHED"}
 
 
@@ -154,16 +154,16 @@ class RejectClass(bpy.types.Operator):
     def execute(self, context):
         lines = []
         self.file = IfcStore.get_file()
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             lines.append(
                 " * The element {} is an {}".format(
                     self.file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId,
-                    bpy.context.scene.BimTesterProperties.audit_ifc_class,
+                    context.scene.BimTesterProperties.audit_ifc_class,
                 )
             )
-        QAHelper.append_to_scenario(lines)
+        QAHelper.append_to_scenario(lines, context)
         return {"FINISHED"}
 
 
@@ -175,7 +175,7 @@ class SelectAudited(bpy.types.Operator):
     def execute(self, context):
         audited_global_ids = []
         self.file = IfcStore.get_file()
-        for filename in Path(bpy.context.scene.BimTesterProperties.features_dir).glob("*.feature"):
+        for filename in Path(context.scene.BimTesterProperties.features_dir).glob("*.feature"):
             with open(filename, "r") as feature_file:
                 lines = feature_file.readlines()
                 for line in lines:
@@ -183,7 +183,7 @@ class SelectAudited(bpy.types.Operator):
                     for word in words:
                         if self.is_a_global_id(word):
                             audited_global_ids.append(word)
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             if self.file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId in audited_global_ids:
@@ -196,10 +196,10 @@ class SelectAudited(bpy.types.Operator):
 
 class QAHelper:
     @classmethod
-    def append_to_scenario(cls, lines):
+    def append_to_scenario(cls, lines, context):
         filename = os.path.join(
-            bpy.context.scene.BimTesterProperties.features_dir,
-            bpy.context.scene.BimTesterProperties.features_file + ".feature",
+            context.scene.BimTesterProperties.features_dir,
+            context.scene.BimTesterProperties.features_file + ".feature",
         )
         if os.path.exists(filename + "~"):
             os.remove(filename + "~")
@@ -210,7 +210,7 @@ class QAHelper:
                 for source_line in source:
                     if (
                         "Scenario: " in source_line
-                        and bpy.context.scene.BimTesterProperties.scenario == source_line.strip()[len("Scenario: ") :]
+                        and context.scene.BimTesterProperties.scenario == source_line.strip()[len("Scenario: ") :]
                     ):
                         is_in_scenario = True
                     elif is_in_scenario:

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

@@ -23,7 +23,7 @@ class ExportClashSets(bpy.types.Operator):
     def execute(self, context):
         self.filepath = bpy.path.ensure_ext(self.filepath, ".json")
         clash_sets = []
-        for clash_set in bpy.context.scene.BIMClashProperties.clash_sets:
+        for clash_set in context.scene.BIMClashProperties.clash_sets:
             self.a = []
             self.b = []
             for ab in ["a", "b"]:
@@ -56,7 +56,7 @@ class ImportClashSets(bpy.types.Operator):
         with open(self.filepath) as f:
             clash_sets = json.load(f)
         for clash_set in clash_sets:
-            new = bpy.context.scene.BIMClashProperties.clash_sets.add()
+            new = context.scene.BIMClashProperties.clash_sets.add()
             new.name = clash_set["name"]
             new.tolerance = clash_set["tolerance"]
             for clash_source in clash_set["a"]:
@@ -81,7 +81,7 @@ class AddClashSet(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        new = bpy.context.scene.BIMClashProperties.clash_sets.add()
+        new = context.scene.BIMClashProperties.clash_sets.add()
         new.name = "New Clash Set"
         new.tolerance = 0.01
         return {"FINISHED"}
@@ -94,7 +94,7 @@ class RemoveClashSet(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        bpy.context.scene.BIMClashProperties.clash_sets.remove(self.index)
+        context.scene.BIMClashProperties.clash_sets.remove(self.index)
         return {"FINISHED"}
 
 
@@ -105,7 +105,7 @@ class AddClashSource(bpy.types.Operator):
     group: bpy.props.StringProperty()
 
     def execute(self, context):
-        clash_set = bpy.context.scene.BIMClashProperties.clash_sets[bpy.context.scene.BIMClashProperties.active_clash_set_index]
+        clash_set = context.scene.BIMClashProperties.clash_sets[context.scene.BIMClashProperties.active_clash_set_index]
         source = getattr(clash_set, self.group).add()
         return {"FINISHED"}
 
@@ -118,7 +118,7 @@ class RemoveClashSource(bpy.types.Operator):
     group: bpy.props.StringProperty()
 
     def execute(self, context):
-        clash_set = bpy.context.scene.BIMClashProperties.clash_sets[bpy.context.scene.BIMClashProperties.active_clash_set_index]
+        clash_set = context.scene.BIMClashProperties.clash_sets[context.scene.BIMClashProperties.active_clash_set_index]
         getattr(clash_set, self.group).remove(self.index)
         return {"FINISHED"}
 
@@ -133,7 +133,7 @@ class SelectClashSource(bpy.types.Operator):
     group: bpy.props.StringProperty()
 
     def execute(self, context):
-        clash_set = bpy.context.scene.BIMClashProperties.clash_sets[bpy.context.scene.BIMClashProperties.active_clash_set_index]
+        clash_set = context.scene.BIMClashProperties.clash_sets[context.scene.BIMClashProperties.active_clash_set_index]
         getattr(clash_set, self.group)[self.index].name = self.filepath
         return {"FINISHED"}
 
@@ -149,7 +149,7 @@ class SelectClashResults(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.BIMClashProperties.clash_results_path = self.filepath
+        context.scene.BIMClashProperties.clash_results_path = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -164,7 +164,7 @@ class SelectSmartGroupedClashesPath(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.BIMClashProperties.smart_grouped_clashes_path = self.filepath
+        context.scene.BIMClashProperties.smart_grouped_clashes_path = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -196,32 +196,32 @@ class ExecuteIfcClash(bpy.types.Operator):
         settings.logger.setLevel(logging.DEBUG)
         ifc_clasher = ifcclash.IfcClasher(settings)
 
-        if bpy.context.scene.BIMClashProperties.should_create_clash_snapshots:
+        if context.scene.BIMClashProperties.should_create_clash_snapshots:
 
             def get_viewpoint_snapshot(self, viewpoint, mat):
                 camera = bpy.data.objects.get("IFC Clash Camera")
                 if not camera:
                     camera = bpy.data.objects.new("IFC Clash Camera", bpy.data.cameras.new("IFC Clash Camera"))
-                    bpy.context.scene.collection.objects.link(camera)
+                    context.scene.collection.objects.link(camera)
                 camera.matrix_world = Matrix(mat)
-                bpy.context.scene.camera = camera
+                context.scene.camera = camera
                 camera.data.angle = radians(60)
-                area = next(area for area in bpy.context.screen.areas if area.type == "VIEW_3D")
+                area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
                 area.spaces[0].region_3d.view_perspective = "CAMERA"
                 area.spaces[0].shading.show_xray = True
-                bpy.context.scene.render.resolution_x = 480
-                bpy.context.scene.render.resolution_y = 270
-                bpy.context.scene.render.image_settings.file_format = "PNG"
-                bpy.context.scene.render.filepath = os.path.join(
-                    bpy.context.scene.BIMProperties.data_dir, "snapshot.png"
+                context.scene.render.resolution_x = 480
+                context.scene.render.resolution_y = 270
+                context.scene.render.image_settings.file_format = "PNG"
+                context.scene.render.filepath = os.path.join(
+                    context.scene.BIMProperties.data_dir, "snapshot.png"
                 )
                 bpy.ops.render.opengl(write_still=True)
-                return bpy.context.scene.render.filepath
+                return context.scene.render.filepath
 
             ifcclash.IfcClasher.get_viewpoint_snapshot = get_viewpoint_snapshot
 
         ifc_clasher.clash_sets = []
-        for clash_set in bpy.context.scene.BIMClashProperties.clash_sets:
+        for clash_set in context.scene.BIMClashProperties.clash_sets:
             self.a = []
             self.b = []
             for ab in ["a", "b"]:
@@ -256,8 +256,8 @@ class SelectIfcClashResults(bpy.types.Operator):
         self.filepath = bpy.path.ensure_ext(self.filepath, ".json")
         with open(self.filepath) as f:
             clash_sets = json.load(f)
-        clash_set_name = bpy.context.scene.BIMClashProperties.clash_sets[
-            bpy.context.scene.BIMClashProperties.active_clash_set_index
+        clash_set_name = context.scene.BIMClashProperties.clash_sets[
+            context.scene.BIMClashProperties.active_clash_set_index
         ].name
         global_ids = []
         for clash_set in clash_sets:
@@ -268,7 +268,7 @@ class SelectIfcClashResults(bpy.types.Operator):
                 return {"CANCELLED"}
             for clash in clash_set["clashes"].values():
                 global_ids.extend([clash["a_global_id"], clash["b_global_id"]])
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
@@ -287,7 +287,7 @@ class SmartClashGroup(bpy.types.Operator):
         import ifcclash
 
         settings = ifcclash.IfcClashSettings()
-        self.filepath = bpy.path.ensure_ext(bpy.context.scene.BIMClashProperties.clash_results_path, ".json")
+        self.filepath = bpy.path.ensure_ext(context.scene.BIMClashProperties.clash_results_path, ".json")
         settings.output = self.filepath
         settings.logger = logging.getLogger("Clash")
         settings.logger.setLevel(logging.DEBUG)
@@ -297,21 +297,21 @@ class SmartClashGroup(bpy.types.Operator):
             clash_sets = json.load(f)
 
         # execute the smart grouping
-        save_path = bpy.path.ensure_ext(bpy.context.scene.BIMClashProperties.smart_grouped_clashes_path, ".json")
+        save_path = bpy.path.ensure_ext(context.scene.BIMClashProperties.smart_grouped_clashes_path, ".json")
         smart_grouped_clashes = ifc_clasher.smart_group_clashes(
-            clash_sets, bpy.context.scene.BIMClashProperties.smart_clash_grouping_max_distance
+            clash_sets, context.scene.BIMClashProperties.smart_clash_grouping_max_distance
         )
 
         # save smart_groups to json
         with open(save_path, "w") as f:
             f.write(json.dumps(smart_grouped_clashes))
 
-        clash_set_name = bpy.context.scene.BIMClashProperties.clash_sets[
-            bpy.context.scene.BIMClashProperties.active_clash_set_index
+        clash_set_name = context.scene.BIMClashProperties.clash_sets[
+            context.scene.BIMClashProperties.active_clash_set_index
         ].name
 
         # Reset the list of smart_clash_groups for the UI
-        bpy.context.scene.BIMClashProperties.smart_clash_groups.clear()
+        context.scene.BIMClashProperties.smart_clash_groups.clear()
 
         for clash_set, smart_groups in smart_grouped_clashes.items():
             # Only select the clashes that correspond to the actively selected IFC Clash Set
@@ -319,7 +319,7 @@ class SmartClashGroup(bpy.types.Operator):
                 continue
             else:
                 for smart_group, global_id_pairs in smart_groups[0].items():
-                    new_group = bpy.context.scene.BIMClashProperties.smart_clash_groups.add()
+                    new_group = context.scene.BIMClashProperties.smart_clash_groups.add()
                     new_group.number = f"{smart_group}"
 
                     for pair in global_id_pairs:
@@ -336,17 +336,17 @@ class LoadSmartGroupsForActiveClashSet(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        smart_groups_path = bpy.path.ensure_ext(bpy.context.scene.BIMClashProperties.smart_grouped_clashes_path, ".json")
+        smart_groups_path = bpy.path.ensure_ext(context.scene.BIMClashProperties.smart_grouped_clashes_path, ".json")
 
-        clash_set_name = bpy.context.scene.BIMClashProperties.clash_sets[
-            bpy.context.scene.BIMClashProperties.active_clash_set_index
+        clash_set_name = context.scene.BIMClashProperties.clash_sets[
+            context.scene.BIMClashProperties.active_clash_set_index
         ].name
 
         with open(smart_groups_path) as f:
             smart_grouped_clashes = json.load(f)
 
         # Reset the list of smart_clash_groups for the UI
-        bpy.context.scene.BIMClashProperties.smart_clash_groups.clear()
+        context.scene.BIMClashProperties.smart_clash_groups.clear()
 
         for clash_set, smart_groups in smart_grouped_clashes.items():
             # Only select the clashes that correspond to the actively selected IFC Clash Set
@@ -354,7 +354,7 @@ class LoadSmartGroupsForActiveClashSet(bpy.types.Operator):
                 continue
             else:
                 for smart_group, global_id_pairs in smart_groups[0].items():
-                    new_group = bpy.context.scene.BIMClashProperties.smart_clash_groups.add()
+                    new_group = context.scene.BIMClashProperties.smart_clash_groups.add()
                     new_group.number = f"{smart_group}"
                     for pair in global_id_pairs:
                         for id in pair:
@@ -371,12 +371,12 @@ class SelectSmartGroup(bpy.types.Operator):
 
     def execute(self, context):
         # Select smart group in view
-        selected_smart_group = bpy.context.scene.BIMClashProperties.smart_clash_groups[
-            bpy.context.scene.BIMCLashProperties.active_smart_group_index
+        selected_smart_group = context.scene.BIMClashProperties.smart_clash_groups[
+            context.scene.BIMCLashProperties.active_smart_group_index
         ]
         # print(selected_smart_group.number)
 
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
@@ -391,13 +391,13 @@ class SelectSmartGroup(bpy.types.Operator):
 
 
 class BlenderClasher:
-    def process_clash_set(self):
+    def process_clash_set(self, context):
         import collision
 
         a_cm = collision.CollisionManager()
         b_cm = collision.CollisionManager()
-        self.add_to_cm(a_cm, bpy.context.scene.BIMClashProperties.blender_clash_set_a)
-        self.add_to_cm(b_cm, bpy.context.scene.BIMClashProperties.blender_clash_set_b)
+        self.add_to_cm(a_cm, context.scene.BIMClashProperties.blender_clash_set_a, context)
+        self.add_to_cm(b_cm, context.scene.BIMClashProperties.blender_clash_set_b, context)
         results = a_cm.in_collision_other(b_cm, return_data=True)
         if not results[0]:
             print("No clashes")
@@ -410,20 +410,20 @@ class BlenderClasher:
             print(contact.raw.normal)
             print(contact.raw.pos)
 
-    def add_to_cm(self, cm, object_names):
+    def add_to_cm(self, cm, object_names, context):
         import ifcclash
 
         for object_name in object_names:
             name = object_name.name
             obj = bpy.data.objects[name]
-            triangulated_mesh = self.triangulate_mesh(obj)
+            triangulated_mesh = self.triangulate_mesh(obj, context)
             mesh = ifcclash.Mesh()
             mesh.vertices = np.array([tuple(obj.matrix_world @ v.co) for v in triangulated_mesh.vertices])
             mesh.faces = np.array([tuple(p.vertices) for p in triangulated_mesh.polygons])
             cm.add_object(name, mesh)
 
-    def triangulate_mesh(self, obj):
-        mesh = obj.evaluated_get(bpy.context.evaluated_depsgraph_get()).to_mesh()
+    def triangulate_mesh(self, obj, context):
+        mesh = obj.evaluated_get(context.evaluated_depsgraph_get()).to_mesh()
         bm = bmesh.new()
         bm.from_mesh(mesh)
         bmesh.ops.triangulate(bm, faces=bm.faces)
@@ -439,10 +439,10 @@ class SetBlenderClashSetA(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        while len(bpy.context.scene.BIMClashProperties.blender_clash_set_a) > 0:
-            bpy.context.scene.BIMClashProperties.blender_clash_set_a.remove(0)
-        for obj in bpy.context.selected_objects:
-            new = bpy.context.scene.BIMClashProperties.blender_clash_set_a.add()
+        while len(context.scene.BIMClashProperties.blender_clash_set_a) > 0:
+            context.scene.BIMClashProperties.blender_clash_set_a.remove(0)
+        for obj in context.selected_objects:
+            new = context.scene.BIMClashProperties.blender_clash_set_a.add()
             new.name = obj.name
         return {"FINISHED"}
 
@@ -453,10 +453,10 @@ class SetBlenderClashSetB(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        while len(bpy.context.scene.BIMClashProperties.blender_clash_set_b) > 0:
-            bpy.context.scene.BIMClashProperties.blender_clash_set_b.remove(0)
-        for obj in bpy.context.selected_objects:
-            new = bpy.context.scene.BIMClashProperties.blender_clash_set_b.add()
+        while len(context.scene.BIMClashProperties.blender_clash_set_b) > 0:
+            context.scene.BIMClashProperties.blender_clash_set_b.remove(0)
+        for obj in context.selected_objects:
+            new = context.scene.BIMClashProperties.blender_clash_set_b.add()
             new.name = obj.name
         return {"FINISHED"}
 
@@ -467,5 +467,5 @@ class ExecuteBlenderClash(bpy.types.Operator):
 
     def execute(self, context):
         blender_clasher = BlenderClasher()
-        blender_clasher.process_clash_set()
+        blender_clasher.process_clash_set(context)
         return {"FINISHED"}

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

@@ -133,7 +133,7 @@ class EnableEditingClassificationReference(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         props = obj.BIMClassificationReferenceProperties
         while len(props.reference_attributes) > 0:
             props.reference_attributes.remove(0)
@@ -157,7 +157,7 @@ class DisableEditingClassificationReference(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         obj.BIMClassificationReferenceProperties.active_reference_id = 0
         return {"FINISHED"}
 
@@ -173,7 +173,7 @@ class RemoveClassificationReference(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "classification.remove_reference",
@@ -198,7 +198,7 @@ class EditClassificationReference(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         props = obj.BIMClassificationReferenceProperties
         attributes = {}
         for attribute in props.reference_attributes:
@@ -228,7 +228,7 @@ class AddClassificationReference(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
 
         classification = None

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

@@ -15,7 +15,7 @@ class SelectCobieIfcFile(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.COBieProperties.cobie_ifc_file = self.filepath
+        context.scene.COBieProperties.cobie_ifc_file = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -30,7 +30,7 @@ class SelectCobieJsonFile(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.COBieProperties.cobie_json_file = self.filepath
+        context.scene.COBieProperties.cobie_json_file = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -45,7 +45,7 @@ class ExecuteIfcCobie(bpy.types.Operator):
 
     def execute(self, context):
         from cobie import IfcCobieParser
-        props = bpy.context.scene.COBieProperties
+        props = context.scene.COBieProperties
         
         output_dir = os.path.dirname(props.cobie_ifc_file)
         

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

@@ -21,9 +21,9 @@ class AddSubcontext(bpy.types.Operator):
             "context.add_context",
             self.file,
             **{
-                "context": self.context or bpy.context.scene.BIMProperties.available_contexts,
-                "subcontext": self.subcontext or bpy.context.scene.BIMProperties.available_subcontexts,
-                "target_view": self.target_view or bpy.context.scene.BIMProperties.available_target_views,
+                "context": self.context or context.scene.BIMProperties.available_contexts,
+                "subcontext": self.subcontext or context.scene.BIMProperties.available_subcontexts,
+                "target_view": self.target_view or context.scene.BIMProperties.available_target_views,
             },
         )
         Data.load(IfcStore.get_file())

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

@@ -307,7 +307,7 @@ class AssignCostItemProduct(bpy.types.Operator):
 
     def _execute(self, context):
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
@@ -336,7 +336,7 @@ class UnassignCostItemProduct(bpy.types.Operator):
 
     def _execute(self, context):
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
@@ -621,7 +621,7 @@ class SelectCostItemProducts(bpy.types.Operator):
     def execute(self, context):
         self.file = IfcStore.get_file()
         related_products = Data.cost_items[self.cost_item]["Controls"]
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             obj.select_set(False)
             if obj.BIMObjectProperties.ifc_definition_id in related_products:
                 obj.select_set(True)
@@ -640,7 +640,7 @@ class SelectCostScheduleProducts(bpy.types.Operator):
         for cost_item_id in Data.cost_schedules[self.cost_schedule]["Controls"]:
             self.get_related_products(Data.cost_items[cost_item_id])
         self.related_products = set(self.related_products)
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             obj.select_set(False)
             if obj.BIMObjectProperties.ifc_definition_id in self.related_products:
                 obj.select_set(True)

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

@@ -13,7 +13,8 @@ class BIM_PT_cost_schedules(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         self.props = context.scene.BIMCostProperties

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

@@ -16,13 +16,13 @@ class Login(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        token = api.login(bpy.context.scene.CoveToolProperties.username, bpy.context.scene.CoveToolProperties.password)
+        token = api.login(context.scene.CoveToolProperties.username, context.scene.CoveToolProperties.password)
         if token:
-            bpy.context.scene.CoveToolProperties.token = token
+            context.scene.CoveToolProperties.token = token
 
             projects = api.get_request("projects")
             for project in projects:
-                new_project = bpy.context.scene.CoveToolProperties.projects.add()
+                new_project = context.scene.CoveToolProperties.projects.add()
                 new_project.name = project["name"]
                 new_project.run_set = project["run_set"][0]
                 new_project.url = project["url"]
@@ -36,10 +36,10 @@ class RunSimpleAnalysis(bpy.types.Operator):
     bl_label = "Run Simple Analysis"
 
     def execute(self, context):
-        simple_analysis = bpy.context.scene.CoveToolProperties.simple_analysis
+        simple_analysis = context.scene.CoveToolProperties.simple_analysis
         data = {
-            "run": bpy.context.scene.CoveToolProperties.projects[
-                bpy.context.scene.CoveToolProperties.active_project_index
+            "run": context.scene.CoveToolProperties.projects[
+                context.scene.CoveToolProperties.active_project_index
             ].run_set,
             "si_units": simple_analysis.si_units,
             "building_height": simple_analysis.building_height,
@@ -84,10 +84,10 @@ class RunAnalysis(bpy.types.Operator):
             "roofs": [],
             "shading_devices": [],
         }
-        self.parse_objects()
+        self.parse_objects(context)
         data = {
-            "run": bpy.context.scene.CoveToolProperties.projects[
-                bpy.context.scene.CoveToolProperties.active_project_index
+            "run": context.scene.CoveToolProperties.projects[
+                context.scene.CoveToolProperties.active_project_index
             ].run_set,
             "source": "BlenderBIM",
             "rotation_angle": self.get_rotation_angle(),
@@ -112,14 +112,14 @@ class RunAnalysis(bpy.types.Operator):
             rotation = 360 - rotation
         return rotation
 
-    def parse_objects(self):
-        for obj in bpy.context.visible_objects:
+    def parse_objects(self, context):
+        for obj in context.visible_objects:
             covetool_category = self.get_covetool_category(obj)
             if not covetool_category:
                 continue
             if not self.has_triangulate_modifier(obj):
                 obj.modifiers.new(name="Triangulate", type="TRIANGULATE")
-            mesh = obj.evaluated_get(bpy.context.evaluated_depsgraph_get()).to_mesh()
+            mesh = obj.evaluated_get(context.evaluated_depsgraph_get()).to_mesh()
             meshes = {}
             for polygon in mesh.polygons:
                 normal = "{}|{}|{}".format(
@@ -197,5 +197,4 @@ class RunAnalysis(bpy.types.Operator):
             return True
 
     def is_window_skylight(self, element):
-        predefined_type = element.get_info().get("PredefinedType")
-        return predefined_type and predefined_type.string_value == "SKYLIGHT"
+        return element.get_info().get("PredefinedType") == "SKYLIGHT"

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

@@ -3,6 +3,8 @@ from . import ui, prop, operator
 
 classes = (
     operator.PrintIfcFile,
+    operator.PurgeIfcLinks,
+    operator.PrintObjectPlacement,
     operator.ValidateIfcFile,
     operator.ProfileImportIFC,
     operator.CreateAllShapes,

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

@@ -1,6 +1,9 @@
 import bpy
 import logging
 import ifcopenshell
+import ifcopenshell.util.placement
+import ifcopenshell.util.representation
+import blenderbim.bim.handler
 import blenderbim.bim.import_ifc as import_ifc
 from blenderbim.bim.ifc import IfcStore
 
@@ -14,6 +17,24 @@ class PrintIfcFile(bpy.types.Operator):
         return {"FINISHED"}
 
 
+class PurgeIfcLinks(bpy.types.Operator):
+    bl_idname = "bim.purge_ifc_links"
+    bl_label = "Purge IFC Links"
+
+    def execute(self, context):
+        for obj in bpy.data.objects:
+            if obj.type in {"MESH", "EMPTY"}:
+                obj.BIMObjectProperties.ifc_definition_id = 0
+                if obj.data:
+                    obj.data.BIMMeshProperties.ifc_definition_id = 0
+        for material in bpy.data.materials:
+            material.BIMMaterialProperties.ifc_style_id = False
+        context.scene.BIMProperties.ifc_file = ""
+        IfcStore.purge()
+        blenderbim.bim.handler.purge_module_data()
+        return {"FINISHED"}
+
+
 class ValidateIfcFile(bpy.types.Operator):
     bl_idname = "bim.validate_ifc_file"
     bl_label = "Validate IFC File"
@@ -36,11 +57,9 @@ class ProfileImportIFC(bpy.types.Operator):
         import pstats
 
         # For Windows
-        filepath = bpy.context.scene.BIMProperties.ifc_file.replace('\\', '\\\\')
+        filepath = context.scene.BIMProperties.ifc_file.replace("\\", "\\\\")
 
-        cProfile.run(
-            f"import bpy; bpy.ops.import_ifc.bim(filepath='{filepath}')", "blender.prof"
-        )
+        cProfile.run(f"import bpy; bpy.ops.import_ifc.bim(filepath='{filepath}')", "blender.prof")
         p = pstats.Stats("blender.prof")
         p.sort_stats("cumulative").print_stats(50)
         return {"FINISHED"}
@@ -56,18 +75,18 @@ class CreateAllShapes(bpy.types.Operator):
         total = len(elements)
         settings = ifcopenshell.geom.settings()
         failures = []
-        excludes = () # For the developer to debug with
+        excludes = ()  # For the developer to debug with
         for i, element in enumerate(elements):
             if element.GlobalId in excludes:
                 continue
-            print(f'{i}/{total}:', element)
+            print(f"{i}/{total}:", element)
             try:
                 shape = ifcopenshell.geom.create_shape(settings, element)
                 print("Success", len(shape.geometry.verts), len(shape.geometry.edges), len(shape.geometry.faces))
             except:
                 failures.append(element)
-                print('***** FAILURE *****')
-        print('Failures:')
+                print("***** FAILURE *****")
+        print("Failures:")
         for failure in failures:
             print(failure)
         return {"FINISHED"}
@@ -83,9 +102,9 @@ class CreateShapeFromStepId(bpy.types.Operator):
 
     def _execute(self, context):
         logger = logging.getLogger("ImportIFC")
-        self.ifc_import_settings = import_ifc.IfcImportSettings.factory(bpy.context, IfcStore.path, logger)
+        self.ifc_import_settings = import_ifc.IfcImportSettings.factory(context, IfcStore.path, logger)
         self.file = IfcStore.get_file()
-        element = self.file.by_id(int(bpy.context.scene.BIMDebugProperties.step_id))
+        element = self.file.by_id(int(context.scene.BIMDebugProperties.step_id))
         settings = ifcopenshell.geom.settings()
         # settings.set(settings.INCLUDE_CURVES, True)
         shape = ifcopenshell.geom.create_shape(settings, element)
@@ -93,7 +112,7 @@ class CreateShapeFromStepId(bpy.types.Operator):
         ifc_importer.file = self.file
         mesh = ifc_importer.create_mesh(element, shape)
         obj = bpy.data.objects.new("Debug", mesh)
-        bpy.context.scene.collection.objects.link(obj)
+        context.scene.collection.objects.link(obj)
         return {"FINISHED"}
 
 
@@ -106,7 +125,7 @@ class SelectHighPolygonMeshes(bpy.types.Operator):
         results = {}
         for obj in bpy.data.objects:
             if not isinstance(obj.data, bpy.types.Mesh) or len(obj.data.polygons) < int(
-                bpy.context.scene.BIMDebugProperties.number_of_polygons
+                context.scene.BIMDebugProperties.number_of_polygons
             ):
                 continue
             try:
@@ -122,7 +141,7 @@ class RewindInspector(bpy.types.Operator):
     bl_label = "Rewind Inspector"
 
     def execute(self, context):
-        props = bpy.context.scene.BIMDebugProperties
+        props = context.scene.BIMDebugProperties
         total_breadcrumbs = len(props.step_id_breadcrumb)
         if total_breadcrumbs < 2:
             return {"FINISHED"}
@@ -140,18 +159,18 @@ class InspectFromStepId(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        bpy.context.scene.BIMDebugProperties.active_step_id = self.step_id
-        crumb = bpy.context.scene.BIMDebugProperties.step_id_breadcrumb.add()
+        context.scene.BIMDebugProperties.active_step_id = self.step_id
+        crumb = context.scene.BIMDebugProperties.step_id_breadcrumb.add()
         crumb.name = str(self.step_id)
         element = self.file.by_id(self.step_id)
-        while len(bpy.context.scene.BIMDebugProperties.attributes) > 0:
-            bpy.context.scene.BIMDebugProperties.attributes.remove(0)
-        while len(bpy.context.scene.BIMDebugProperties.inverse_attributes) > 0:
-            bpy.context.scene.BIMDebugProperties.inverse_attributes.remove(0)
-        while len(bpy.context.scene.BIMDebugProperties.inverse_references) > 0:
-            bpy.context.scene.BIMDebugProperties.inverse_references.remove(0)
+        while len(context.scene.BIMDebugProperties.attributes) > 0:
+            context.scene.BIMDebugProperties.attributes.remove(0)
+        while len(context.scene.BIMDebugProperties.inverse_attributes) > 0:
+            context.scene.BIMDebugProperties.inverse_attributes.remove(0)
+        while len(context.scene.BIMDebugProperties.inverse_references) > 0:
+            context.scene.BIMDebugProperties.inverse_references.remove(0)
         for key, value in element.get_info().items():
-            self.add_attribute(bpy.context.scene.BIMDebugProperties.attributes, key, value)
+            self.add_attribute(context.scene.BIMDebugProperties.attributes, key, value)
         for key in dir(element):
             if (
                 not key[0].isalpha()
@@ -160,9 +179,9 @@ class InspectFromStepId(bpy.types.Operator):
                 or not getattr(element, key)
             ):
                 continue
-            self.add_attribute(bpy.context.scene.BIMDebugProperties.inverse_attributes, key, getattr(element, key))
+            self.add_attribute(context.scene.BIMDebugProperties.inverse_attributes, key, getattr(element, key))
         for inverse in self.file.get_inverse(element):
-            new = bpy.context.scene.BIMDebugProperties.inverse_references.add()
+            new = context.scene.BIMDebugProperties.inverse_references.add()
             new.string_value = str(inverse)
             new.int_value = inverse.id()
         return {"FINISHED"}
@@ -186,8 +205,18 @@ class InspectFromObject(bpy.types.Operator):
     bl_label = "Inspect From Object"
 
     def execute(self, context):
-        ifc_definition_id = bpy.context.active_object.BIMObjectProperties.ifc_definition_id
+        ifc_definition_id = context.active_object.BIMObjectProperties.ifc_definition_id
         if not ifc_definition_id:
             return {"FINISHED"}
         bpy.ops.bim.inspect_from_step_id(step_id=ifc_definition_id)
         return {"FINISHED"}
+
+
+class PrintObjectPlacement(bpy.types.Operator):
+    bl_idname = "bim.print_object_placement"
+    bl_label = "Print Object Placement"
+    step_id: bpy.props.IntProperty()
+
+    def execute(self, context):
+        print(ifcopenshell.util.placement.get_local_placement(IfcStore.get_file().by_id(self.step_id)))
+        return {"FINISHED"}

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

@@ -23,6 +23,9 @@ class BIM_PT_debug(Panel):
         row = layout.row()
         row.operator("bim.print_ifc_file")
 
+        row = layout.row()
+        row.operator("bim.purge_ifc_links")
+
         row = layout.row()
         row.operator("bim.create_all_shapes")
 
@@ -46,7 +49,7 @@ class BIM_PT_debug(Panel):
             row.operator("bim.rewind_inspector", icon="FRAME_PREV", text="")
         row.prop(props, "active_step_id", text="")
         row = layout.row(align=True)
-        row.operator("bim.inspect_from_step_id").step_id = bpy.context.scene.BIMDebugProperties.active_step_id
+        row.operator("bim.inspect_from_step_id").step_id = context.scene.BIMDebugProperties.active_step_id
         row.operator("bim.inspect_from_object")
 
         if props.attributes:
@@ -59,6 +62,9 @@ class BIM_PT_debug(Panel):
             if attribute.name == "GlobalId":
                 op = row.operator("bim.select_global_id", icon="RESTRICT_SELECT_OFF", text="")
                 op.global_id = attribute.string_value
+            if attribute.name == "ObjectPlacement":
+                op = row.operator("bim.print_object_placement", icon="TRACKER", text="")
+                op.step_id = attribute.int_value
             if attribute.int_value:
                 row.operator(
                     "bim.inspect_from_step_id", icon="DISCLOSURE_TRI_RIGHT", text=""

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

@@ -13,7 +13,7 @@ class SelectDiffJsonFile(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.DiffProperties.diff_json_file = self.filepath
+        context.scene.DiffProperties.diff_json_file = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -29,20 +29,20 @@ class VisualiseDiff(bpy.types.Operator):
     def execute(self, context):
         #ifc_file = IfcStore.get_file() # In case we get from Store
         ifc_file = ifcopenshell.open(context.scene.DiffProperties.diff_new_file) # for Now refer to the new file
-        with open(bpy.context.scene.DiffProperties.diff_json_file, "r") as file:
+        with open(context.scene.DiffProperties.diff_json_file, "r") as file:
             diff = json.load(file)
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             obj.color = (1.0, 1.0, 1.0, 0.2)
             global_id = ifc_file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId
             if not global_id:
                 continue
-            if global_id.string_value in diff["deleted"]:
+            if global_id in diff["deleted"]:
                 obj.color = (1.0, 0.0, 0.0, 0.2)
-            elif global_id.string_value in diff["added"]:
+            elif global_id in diff["added"]:
                 obj.color = (0.0, 1.0, 0.0, 0.2)
-            elif global_id.string_value in diff["changed"]:
+            elif global_id in diff["changed"]:
                 obj.color = (0.0, 0.0, 1.0, 0.2)
-        area = next(area for area in bpy.context.screen.areas if area.type == "VIEW_3D")
+        area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
         area.spaces[0].shading.color_type = "OBJECT"
         return {"FINISHED"}
 
@@ -54,7 +54,7 @@ class SelectDiffOldFile(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.DiffProperties.diff_old_file = self.filepath
+        context.scene.DiffProperties.diff_old_file = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -69,7 +69,7 @@ class SelectDiffNewFile(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.DiffProperties.diff_new_file = self.filepath
+        context.scene.DiffProperties.diff_new_file = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -93,12 +93,12 @@ class ExecuteIfcDiff(bpy.types.Operator):
         import ifcdiff
 
         ifc_diff = ifcdiff.IfcDiff(
-            bpy.context.scene.DiffProperties.diff_old_file,
-            bpy.context.scene.DiffProperties.diff_new_file,
+            context.scene.DiffProperties.diff_old_file,
+            context.scene.DiffProperties.diff_new_file,
             self.filepath,
-            bpy.context.scene.DiffProperties.diff_relationships.split(),
+            context.scene.DiffProperties.diff_relationships.split(),
         )
         ifc_diff.diff()
         ifc_diff.export()
-        bpy.context.scene.DiffProperties.diff_json_file = self.filepath
+        context.scene.DiffProperties.diff_json_file = self.filepath
         return {"FINISHED"}

src/blenderbim/blenderbim/bim/module/drawing/annotation.py

@@ -16,13 +16,13 @@ class Annotator:
         return float(sizes[str(size)])
 
     @staticmethod
-    def add_text(related_element=None):
+    def add_text(context, related_element=None):
         curve = bpy.data.curves.new(type="FONT", name="Text")
         curve.body = "TEXT"
         obj = bpy.data.objects.new("Text", curve)
-        obj.matrix_world = bpy.context.scene.camera.matrix_world
+        obj.matrix_world = context.scene.camera.matrix_world
         if related_element is None:
-            location, _, _, _ = Annotator.get_placeholder_coords()
+            location, _, _, _ = Annotator.get_placeholder_coords(context)
         else:
             obj.data.BIMTextProperties.related_element = related_element
             location = related_element.location
@@ -31,12 +31,12 @@ class Annotator:
         font = bpy.data.fonts.get("OpenGost TypeB TT")
         if not font:
             font = bpy.data.fonts.load(
-                os.path.join(bpy.context.scene.BIMProperties.data_dir, "fonts", "OpenGost Type B TT.ttf")
+                os.path.join(context.scene.BIMProperties.data_dir, "fonts", "OpenGost Type B TT.ttf")
             )
             font.name = "OpenGost Type B TT"
         obj.data.font = font
         obj.data.BIMTextProperties.font_size = "2.5"
-        collection = bpy.context.scene.camera.users_collection[0]
+        collection = context.scene.camera.users_collection[0]
         collection.objects.link(obj)
         Annotator.resize_text(obj)
         return obj
@@ -64,9 +64,9 @@ class Annotator:
         text_obj.data.size = font_size
 
     @staticmethod
-    def add_line_to_annotation(obj, co1=None, co2=None):
+    def add_line_to_annotation(obj, context, co1=None, co2=None):
         if co1 is None:
-            co1, co2, _, _ = Annotator.get_placeholder_coords()
+            co1, co2, _, _ = Annotator.get_placeholder_coords(context)
         co1 = obj.matrix_world.inverted() @ co1
         co2 = obj.matrix_world.inverted() @ co2
         if isinstance(obj.data, bpy.types.Mesh):
@@ -83,8 +83,8 @@ class Annotator:
         return obj
 
     @staticmethod
-    def add_plane_to_annotation(obj):
-        co1, co2, co3, co4 = Annotator.get_placeholder_coords()
+    def add_plane_to_annotation(obj, context):
+        co1, co2, co3, co4 = Annotator.get_placeholder_coords(context)
         co1 = obj.matrix_world.inverted() @ co1  # bot left
         co2 = obj.matrix_world.inverted() @ co2  # top left
         co3 = obj.matrix_world.inverted() @ co3  # bot right
@@ -132,8 +132,8 @@ class Annotator:
         return obj
 
     @staticmethod
-    def get_annotation_obj(name, data_type):
-        collection = bpy.context.scene.camera.users_collection[0]
+    def get_annotation_obj(name, data_type, context):
+        collection = context.scene.camera.users_collection[0]
         for obj in collection.objects:
             if name in obj.name:
                 return obj
@@ -148,13 +148,13 @@ class Annotator:
         return obj
 
     @staticmethod
-    def get_placeholder_coords():
-        camera = bpy.context.scene.camera
+    def get_placeholder_coords(context):
+        camera = context.scene.camera
         z_offset = camera.matrix_world.to_quaternion() @ Vector((0, 0, -1))
-        if bpy.context.scene.render.resolution_x > bpy.context.scene.render.resolution_y:
+        if context.scene.render.resolution_x > context.scene.render.resolution_y:
             y = (
                 camera.data.ortho_scale
-                * (bpy.context.scene.render.resolution_y / bpy.context.scene.render.resolution_x)
+                * (context.scene.render.resolution_y / context.scene.render.resolution_x)
                 / 4
             )
         else:

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

@@ -7,6 +7,9 @@ import bmesh
 import shutil
 import subprocess
 import webbrowser
+import multiprocessing
+import ifcopenshell
+import ifcopenshell.geom
 import ifcopenshell.util.selector
 import ifcopenshell.util.representation
 import blenderbim.bim.module.drawing.svgwriter as svgwriter
@@ -231,6 +234,39 @@ class CreateDrawing(bpy.types.Operator):
         svg_path = os.path.join(context.scene.BIMProperties.data_dir, "cache", self.drawing_name + "-linework.svg")
         if os.path.isfile(svg_path) and self.props.should_use_linework_cache:
             return svg_path
+        # This is a work in progress. See #1153 and #1564.
+        # Switch from old to new if you are testing v0.7.0
+        self.generate_linework_old(svg_path)
+        # self.generate_linework_new(svg_path)
+        return svg_path
+
+    def generate_linework_new(self, svg_path):
+        settings = ifcopenshell.geom.settings(
+            APPLY_DEFAULT_MATERIALS=True,
+            DISABLE_TRIANGULATION=True,
+            INCLUDE_CURVES=True,
+            EXCLUDE_SOLIDS_AND_SURFACES=False,
+        )
+        buffer = ifcopenshell.geom.serializers.buffer()
+        serialiser = ifcopenshell.geom.serializers.svg(buffer, settings)
+        serialiser.setFile(self.file)
+        serialiser.setElevationRef("DRAWING")
+        serialiser.setUseNamespace(True)
+        serialiser.setAlwaysProject(True)
+        serialiser.setUseHlrPoly(True)
+        serialiser.setWithoutStoreys(True)
+        excluded_elements = []
+        for ifc_class in ["IfcSpace", "IfcOpeningElement", "IfcDoor", "IfcWindow"]:
+            excluded_elements += self.file.by_type(ifc_class)
+        for element in ifcopenshell.geom.iterate(
+            settings, self.file, multiprocessing.cpu_count(), exclude=excluded_elements
+        ):
+            serialiser.write(element)
+        serialiser.finalize()
+        with open(svg_path, "w") as svg:
+            svg.write(buffer.get_value())
+
+    def generate_linework_old(self, svg_path):
         ifcconvert_path = os.path.join(cwd, "..", "..", "..", "libs", "IfcConvert")
         subprocess.run(
             [
@@ -431,7 +467,7 @@ class AddAnnotation(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        if not bpy.context.scene.camera:
+        if not context.scene.camera:
             return {"FINISHED"}
         subcontext = ifcopenshell.util.representation.get_context(
             IfcStore.get_file(), "Plan", "Annotation", context.scene.camera.data.BIMCameraProperties.target_view
@@ -439,17 +475,17 @@ class AddAnnotation(bpy.types.Operator):
         if not subcontext:
             return {"FINISHED"}
         if self.data_type == "text":
-            if bpy.context.selected_objects:
-                for selected_object in bpy.context.selected_objects:
-                    obj = annotation.Annotator.add_text(related_element=selected_object)
+            if context.selected_objects:
+                for selected_object in context.selected_objects:
+                    obj = annotation.Annotator.add_text(context, related_element=selected_object)
             else:
-                obj = annotation.Annotator.add_text()
+                obj = annotation.Annotator.add_text(context)
         else:
-            obj = annotation.Annotator.get_annotation_obj(self.obj_name, self.data_type)
+            obj = annotation.Annotator.get_annotation_obj(self.obj_name, self.data_type, context)
             if self.obj_name == "Break":
-                obj = annotation.Annotator.add_plane_to_annotation(obj)
+                obj = annotation.Annotator.add_plane_to_annotation(obj, context)
             else:
-                obj = annotation.Annotator.add_line_to_annotation(obj)
+                obj = annotation.Annotator.add_line_to_annotation(obj, context)
 
         if not obj.BIMObjectProperties.ifc_definition_id:
             bpy.ops.bim.assign_class(obj=obj.name, ifc_class="IfcAnnotation", context_id=subcontext.id())
@@ -659,10 +695,10 @@ class GenerateReferences(bpy.types.Operator):
             self.generate_grids()
         if self.camera.data.BIMCameraProperties.target_view == "ELEVATION_VIEW":
             self.generate_grids()
-            self.generate_levels()
+            self.generate_levels(context)
         if self.camera.data.BIMCameraProperties.target_view == "SECTION_VIEW":
             self.generate_grids()
-            self.generate_levels()
+            self.generate_levels(context)
         return {"FINISHED"}
 
     def filter_potential_references(self):
@@ -678,7 +714,7 @@ class GenerateReferences(bpy.types.Operator):
         # TODO
         pass
 
-    def generate_levels(self):
+    def generate_levels(self, context):
         if self.camera.data.BIMCameraProperties.raster_x > self.camera.data.BIMCameraProperties.raster_y:
             width = self.camera.data.ortho_scale
             height = (
@@ -689,7 +725,7 @@ class GenerateReferences(bpy.types.Operator):
             width = (
                 height / self.camera.data.BIMCameraProperties.raster_y * self.camera.data.BIMCameraProperties.raster_x
             )
-        level_obj = annotation.Annotator.get_annotation_obj("Section Level", "curve")
+        level_obj = annotation.Annotator.get_annotation_obj("Section Level", "curve", context)
 
         width_in_mm = width * 1000
         if self.camera.data.BIMCameraProperties.diagram_scale == "CUSTOM":
@@ -706,7 +742,7 @@ class GenerateReferences(bpy.types.Operator):
             projection = self.project_point_onto_camera(obj.location)
             co1 = self.camera.matrix_world @ Vector((width / 2 - (offset_percentage * width), projection[1], -1))
             co2 = self.camera.matrix_world @ Vector((-(width / 2), projection[1], -1))
-            annotation.Annotator.add_line_to_annotation(level_obj, co1, co2)
+            annotation.Annotator.add_line_to_annotation(level_obj, context, co1, co2)
 
     def project_point_onto_camera(self, point):
         projection = self.camera.matrix_world.to_quaternion() @ Vector((0, 0, -1))

src/blenderbim/blenderbim/bim/module/drawing/svgwriter.py

@@ -28,7 +28,7 @@ class External(svgwrite.container.Group):
         # Remove namespace
         ns = u"{http://www.w3.org/2000/svg}"
         nsl = len(ns)
-        for elem in self.xml.getiterator():
+        for elem in self.xml.iter():
             if elem.tag.startswith(ns):
                 elem.tag = elem.tag[nsl:]
 
@@ -85,19 +85,19 @@ class SvgWriter:
     def add_markers(self):
         tree = ET.parse(os.path.join(self.data_dir, "templates", "markers.svg"))
         root = tree.getroot()
-        for child in root.getchildren():
+        for child in root:
             self.svg.defs.add(External(child))
 
     def add_symbols(self):
         tree = ET.parse(os.path.join(self.data_dir, "templates", "symbols.svg"))
         root = tree.getroot()
-        for child in root.getchildren():
+        for child in root:
             self.svg.defs.add(External(child))
 
     def add_patterns(self):
         tree = ET.parse(os.path.join(self.data_dir, "templates", "patterns.svg"))
         root = tree.getroot()
-        for child in root.getchildren():
+        for child in root:
             self.svg.defs.add(External(child))
 
     def draw_background_image(self):

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

@@ -24,7 +24,7 @@ class BIM_PT_camera(Panel):
             return
 
         layout.use_property_split = True
-        dprops = bpy.context.scene.DocProperties
+        dprops = context.scene.DocProperties
         props = context.active_object.data.BIMCameraProperties
 
         col = layout.column(align=True)
@@ -92,7 +92,7 @@ class BIM_PT_drawing_underlay(Panel):
     def draw(self, context):
         layout = self.layout
         layout.use_property_split = True
-        dprops = bpy.context.scene.DocProperties
+        dprops = context.scene.DocProperties
         props = context.active_object.data.BIMCameraProperties
 
         row = layout.row(align=True)
@@ -142,7 +142,7 @@ class BIM_PT_drawings(Panel):
     def draw(self, context):
         layout = self.layout
         layout.use_property_split = True
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
 
         row = layout.row(align=True)
         row.operator("bim.add_drawing")
@@ -175,7 +175,7 @@ class BIM_PT_schedules(Panel):
     def draw(self, context):
         layout = self.layout
         layout.use_property_split = True
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
 
         row = layout.row(align=True)
         row.operator("bim.add_schedule")
@@ -200,7 +200,7 @@ class BIM_PT_sheets(Panel):
 
     def draw(self, context):
         layout = self.layout
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
 
         row = layout.row(align=True)
         row.prop(props, "titleblock", text="")
@@ -315,7 +315,7 @@ class BIM_PT_annotation_utilities(Panel):
         op.obj_name = "Misc"
         op.data_type = "mesh"
 
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
 
         row = layout.row(align=True)
         row.operator("bim.add_drawing")

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

@@ -24,10 +24,10 @@ class EditObjectPlacement(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        objs = [bpy.data.objects.get(self.obj)] if self.obj else bpy.context.selected_objects
+        objs = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
         self.file = IfcStore.get_file()
         # TODO: determine how to deal with this module dependency
-        props = bpy.context.scene.BIMGeoreferenceProperties
+        props = context.scene.BIMGeoreferenceProperties
         for obj in objs:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
@@ -69,7 +69,7 @@ class AddRepresentation(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
 
         bpy.ops.bim.edit_object_placement(obj=obj.name)
@@ -79,7 +79,7 @@ class AddRepresentation(bpy.types.Operator):
 
         product = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
 
-        context_id = self.context_id or int(bpy.context.scene.BIMProperties.contexts)
+        context_id = self.context_id or int(context.scene.BIMProperties.contexts)
         context_of_items = self.file.by_id(context_id)
 
         gprop = context.scene.BIMGeoreferenceProperties
@@ -117,19 +117,20 @@ class AddRepresentation(bpy.types.Operator):
             if s.material and not s.material.BIMMaterialProperties.ifc_style_id
         ]
 
-        ifcopenshell.api.run(
-            "style.assign_representation_styles",
-            self.file,
-            **{
-                "shape_representation": result,
-                "styles": [
-                    self.file.by_id(s.material.BIMMaterialProperties.ifc_style_id)
-                    for s in obj.material_slots
-                    if s.material
-                ],
-                "should_use_presentation_style_assignment": context.scene.BIMGeometryProperties.should_use_presentation_style_assignment,
-            },
-        )
+        if isinstance(obj.data, bpy.types.Mesh) and len(obj.data.polygons):
+            ifcopenshell.api.run(
+                "style.assign_representation_styles",
+                self.file,
+                **{
+                    "shape_representation": result,
+                    "styles": [
+                        self.file.by_id(s.material.BIMMaterialProperties.ifc_style_id)
+                        for s in obj.material_slots
+                        if s.material
+                    ],
+                    "should_use_presentation_style_assignment": context.scene.BIMGeometryProperties.should_use_presentation_style_assignment,
+                },
+            )
         ifcopenshell.api.run(
             "geometry.assign_representation", self.file, **{"product": product, "representation": result}
         )
@@ -160,9 +161,10 @@ class SwitchRepresentation(bpy.types.Operator):
     ifc_definition_id: bpy.props.IntProperty()
     should_reload: bpy.props.BoolProperty()
     disable_opening_subtractions: bpy.props.BoolProperty()
+    should_switch_all_meshes: bpy.props.BoolProperty()
 
     def execute(self, context):
-        self.element_obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        self.element_obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.oprops = self.element_obj.BIMObjectProperties
 
         self.file = IfcStore.get_file()
@@ -171,11 +173,17 @@ class SwitchRepresentation(bpy.types.Operator):
 
         mesh = bpy.data.meshes.get(self.mesh_name)
         if mesh:
-            self.element_obj.data.user_remap(mesh)
+            self.switch_mesh(mesh)
         if not mesh or self.should_reload:
-            self.pull_mesh_from_ifc()
+            self.pull_mesh_from_ifc(context)
         return {"FINISHED"}
 
+    def switch_mesh(self, mesh):
+        if self.should_switch_all_meshes or self.file.by_id(self.oprops.ifc_definition_id).is_a("IfcTypeProduct"):
+            self.element_obj.data.user_remap(mesh)
+        else:
+            self.element_obj.data = mesh
+
     def get_mesh_name(self):
         representation = self.resolve_mapped_representation(self.file.by_id(self.ifc_definition_id))
         return "{}/{}".format(self.context_of_items.id(), representation.id())
@@ -185,9 +193,9 @@ class SwitchRepresentation(bpy.types.Operator):
             return self.resolve_mapped_representation(representation.Items[0].MappingSource.MappedRepresentation)
         return representation
 
-    def pull_mesh_from_ifc(self):
+    def pull_mesh_from_ifc(self, context):
         logger = logging.getLogger("ImportIFC")
-        ifc_import_settings = import_ifc.IfcImportSettings.factory(bpy.context, IfcStore.path, logger)
+        ifc_import_settings = import_ifc.IfcImportSettings.factory(context, IfcStore.path, logger)
         element = self.file.by_id(self.oprops.ifc_definition_id)
         settings = ifcopenshell.geom.settings()
 
@@ -205,7 +213,7 @@ class SwitchRepresentation(bpy.types.Operator):
         mesh = ifc_importer.create_mesh(element, shape)
         mesh.name = self.mesh_name
         mesh.BIMMeshProperties.ifc_definition_id = self.ifc_definition_id
-        self.element_obj.data.user_remap(mesh)
+        self.switch_mesh(mesh)
         material_creator = import_ifc.MaterialCreator(ifc_import_settings, ifc_importer)
         material_creator.load_existing_materials()
         material_creator.create(element, self.element_obj, mesh)
@@ -239,7 +247,7 @@ class RemoveRepresentation(bpy.types.Operator):
     def _execute(self, context):
         self.file = IfcStore.get_file()
         representation = self.file.by_id(self.representation_id)
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         is_mapped_representation = representation.RepresentationType == "MappedRepresentation"
         if is_mapped_representation:
             mesh_name = "{}/{}".format(
@@ -280,7 +288,7 @@ class UpdateRepresentation(bpy.types.Operator):
         if not ContextData.is_loaded:
             ContextData.load(IfcStore.get_file())
 
-        objs = [bpy.data.objects.get(self.obj)] if self.obj else bpy.context.selected_objects
+        objs = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
         self.file = IfcStore.get_file()
 
         for obj in objs:
@@ -330,19 +338,20 @@ class UpdateRepresentation(bpy.types.Operator):
             if s.material and not s.material.BIMMaterialProperties.ifc_style_id
         ]
 
-        ifcopenshell.api.run(
-            "style.assign_representation_styles",
-            self.file,
-            **{
-                "shape_representation": new_representation,
-                "styles": [
-                    self.file.by_id(s.material.BIMMaterialProperties.ifc_style_id)
-                    for s in obj.material_slots
-                    if s.material
-                ],
-                "should_use_presentation_style_assignment": context.scene.BIMGeometryProperties.should_use_presentation_style_assignment,
-            },
-        )
+        if isinstance(obj.data, bpy.types.Mesh) and len(obj.data.polygons):
+            ifcopenshell.api.run(
+                "style.assign_representation_styles",
+                self.file,
+                **{
+                    "shape_representation": new_representation,
+                    "styles": [
+                        self.file.by_id(s.material.BIMMaterialProperties.ifc_style_id)
+                        for s in obj.material_slots
+                        if s.material
+                    ],
+                    "should_use_presentation_style_assignment": context.scene.BIMGeometryProperties.should_use_presentation_style_assignment,
+                },
+            )
 
         # TODO: move this into a replace_representation usecase or something
         for inverse in self.file.get_inverse(old_representation):
@@ -362,11 +371,13 @@ class UpdateParametricRepresentation(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        obj = bpy.context.active_object
+        obj = context.active_object
         props = obj.data.BIMMeshProperties
         parameter = props.ifc_parameters[self.index]
         element = IfcStore.get_file().by_id(parameter.step_id)[parameter.index] = parameter.value
-        bpy.ops.bim.switch_representation(ifc_definition_id=props.ifc_definition_id, should_reload=True)
+        bpy.ops.bim.switch_representation(
+            ifc_definition_id=props.ifc_definition_id, should_reload=True, should_switch_all_meshes=True
+        )
         return {"FINISHED"}
 
 
@@ -377,7 +388,7 @@ class GetRepresentationIfcParameters(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        obj = bpy.context.active_object
+        obj = context.active_object
         props = obj.data.BIMMeshProperties
         elements = IfcStore.get_file().traverse(IfcStore.get_file().by_id(props.ifc_definition_id))
         for element in elements:

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

@@ -30,7 +30,7 @@ class BIM_PT_representations(Panel):
             layout.label(text="No representations found")
 
         row = layout.row(align=True)
-        row.prop(bpy.context.scene.BIMProperties, "contexts", text="")
+        row.prop(context.scene.BIMProperties, "contexts", text="")
         row.operator("bim.add_representation", icon="ADD", text="")
 
         for ifc_definition_id in representations:
@@ -41,6 +41,7 @@ class BIM_PT_representations(Panel):
             row.label(text=representation["ContextOfItems"]["TargetView"])
             row.label(text=representation["RepresentationType"])
             op = row.operator("bim.switch_representation", icon="OUTLINER_DATA_MESH", text="")
+            op.should_switch_all_meshes = True
             op.should_reload = True
             op.ifc_definition_id = ifc_definition_id
             op.disable_opening_subtractions = False
@@ -71,10 +72,12 @@ class BIM_PT_mesh(Panel):
 
         row = layout.row(align=True)
         op = row.operator("bim.switch_representation", text="Bake Voids", icon="SELECT_SUBTRACT")
+        op.should_switch_all_meshes=True
         op.should_reload = True
         op.ifc_definition_id = props.ifc_definition_id
         op.disable_opening_subtractions = False
         op = row.operator("bim.switch_representation", text="Dynamic Voids", icon="SELECT_INTERSECT")
+        op.should_switch_all_meshes=True
         op.should_reload = True
         op.ifc_definition_id = props.ifc_definition_id
         op.disable_opening_subtractions = True

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

@@ -276,7 +276,7 @@ class ConvertLocalToGlobal(bpy.types.Operator):
             results = (x, y, z)
 
         props.coordinate_output = ",".join([str(r) for r in results])
-        bpy.context.scene.cursor.location = results
+        context.scene.cursor.location = results
         return {"FINISHED"}
 
 
@@ -322,7 +322,7 @@ class ConvertGlobalToLocal(bpy.types.Operator):
         props.coordinate_output = ",".join([str(r) for r in results])
 
         scale = ifcopenshell.util.unit.calculate_unit_scale(IfcStore.get_file())
-        bpy.context.scene.cursor.location = [o * scale for o in results]
+        context.scene.cursor.location = [o * scale for o in results]
         return {"FINISHED"}
 
 
@@ -334,7 +334,7 @@ class GetCursorLocation(bpy.types.Operator):
     def execute(self, context):
         props = context.scene.BIMGeoreferenceProperties
         scale = ifcopenshell.util.unit.calculate_unit_scale(IfcStore.get_file())
-        project_coordinates = [o / scale for o in bpy.context.scene.cursor.location]
+        project_coordinates = [o / scale for o in context.scene.cursor.location]
         props.coordinate_input = ",".join([str(o) for o in project_coordinates])
         return {"FINISHED"}
 
@@ -347,5 +347,5 @@ class SetCursorLocation(bpy.types.Operator):
     def execute(self, context):
         props = context.scene.BIMGeoreferenceProperties
         scale = ifcopenshell.util.unit.calculate_unit_scale(IfcStore.get_file())
-        bpy.context.scene.cursor.location = [float(co) * scale for co in props.coordinate_output.split(",")]
+        context.scene.cursor.location = [float(co) * scale for co in props.coordinate_output.split(",")]
         return {"FINISHED"}

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

@@ -186,7 +186,7 @@ class SelectGroupProducts(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             obj.select_set(False)
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue

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

@@ -1,6 +1,7 @@
 import bpy
 import json
 import ifcopenshell.api
+import ifcopenshell.util.element
 import ifcopenshell.util.attribute
 import ifcopenshell.util.representation
 import blenderbim.bim.helper
@@ -22,7 +23,7 @@ class AssignParameterizedProfile(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         profile = ifcopenshell.api.run(
             "profile.add_parameterized_profile",
@@ -50,18 +51,22 @@ class AddMaterial(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.materials.get(self.obj) if self.obj else bpy.context.active_object.active_material
+        obj = bpy.data.materials.get(self.obj) if self.obj else context.active_object.active_material
         self.file = IfcStore.get_file()
         result = ifcopenshell.api.run("material.add_material", self.file, **{"name": obj.name})
-        obj.BIMObjectProperties.ifc_definition_id = result.id()
+        IfcStore.link_element(result, obj)
         if obj.BIMMaterialProperties.ifc_style_id:
             context = ifcopenshell.util.representation.get_context(self.file, "Model", "Body", "MODEL_VIEW")
             if context:
-                ifcopenshell.api.run("style.assign_material_style", self.file, **{
-                    "material": result,
-                    "style": self.file.by_id(obj.BIMMaterialProperties.ifc_style_id),
-                    "context": context,
-                })
+                ifcopenshell.api.run(
+                    "style.assign_material_style",
+                    self.file,
+                    **{
+                        "material": result,
+                        "style": self.file.by_id(obj.BIMMaterialProperties.ifc_style_id),
+                        "context": context,
+                    },
+                )
         Data.load(IfcStore.get_file())
         material_prop_purge()
         return {"FINISHED"}
@@ -77,7 +82,7 @@ class RemoveMaterial(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.materials.get(self.obj) if self.obj else bpy.context.active_object.active_material
+        obj = bpy.data.materials.get(self.obj) if self.obj else context.active_object.active_material
         self.file = IfcStore.get_file()
         result = ifcopenshell.api.run(
             "material.remove_material",
@@ -100,22 +105,40 @@ class AssignMaterial(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         material_type = self.material_type or obj.BIMObjectMaterialProperties.material_type
         self.file = IfcStore.get_file()
+        element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
         ifcopenshell.api.run(
             "material.assign_material",
             self.file,
             **{
-                "product": self.file.by_id(obj.BIMObjectProperties.ifc_definition_id),
+                "product": element,
                 "type": material_type,
                 "material": self.file.by_id(int(obj.BIMObjectMaterialProperties.material)),
             },
         )
         Data.load(IfcStore.get_file())
         Data.load(IfcStore.get_file(), obj.BIMObjectProperties.ifc_definition_id)
+        self.set_default_material(obj, element)
         return {"FINISHED"}
 
+    def set_default_material(self, obj, element):
+        element_material = ifcopenshell.util.element.get_material(element)
+        material = [m for m in self.file.traverse(element_material) if m.is_a("IfcMaterial")]
+        if not material:
+            return
+
+        object_material_ids = [
+            om.BIMObjectProperties.ifc_definition_id
+            for om in obj.data.materials
+            if om is not None and om.BIMObjectProperties.ifc_definition_id
+        ]
+
+        if material[0].id() in object_material_ids:
+            return
+        obj.data.materials.append(IfcStore.get_element(material[0].id()))
+
 
 class UnassignMaterial(bpy.types.Operator):
     bl_idname = "bim.unassign_material"
@@ -127,7 +150,7 @@ class UnassignMaterial(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.unassign_material",
@@ -149,7 +172,7 @@ class AddConstituent(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.add_constituent",
@@ -174,7 +197,7 @@ class RemoveConstituent(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.remove_constituent", self.file, **{"constituent": self.file.by_id(self.constituent)}
@@ -194,7 +217,7 @@ class AddProfile(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.add_profile",
@@ -205,6 +228,7 @@ class AddProfile(bpy.types.Operator):
             },
         )
         Data.load_profiles()
+        ProfileData.load(self.file)
         return {"FINISHED"}
 
 
@@ -219,10 +243,11 @@ class RemoveProfile(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run("material.remove_profile", self.file, **{"profile": self.file.by_id(self.profile)})
         Data.load_profiles()
+        ProfileData.load(self.file)
         return {"FINISHED"}
 
 
@@ -237,7 +262,7 @@ class AddLayer(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.add_layer",
@@ -264,7 +289,7 @@ class ReorderMaterialSetItem(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         material_set = self.file.by_id(self.material_set)
         ifcopenshell.api.run(
@@ -282,6 +307,7 @@ class ReorderMaterialSetItem(bpy.types.Operator):
             Data.load_layers()
         elif material_set.is_a("IfcMaterialProfileSet"):
             Data.load_profiles()
+            ProfileData.load(self.file)
         elif material_set.is_a("IfcMaterialList"):
             Data.load_lists()
         return {"FINISHED"}
@@ -298,7 +324,7 @@ class RemoveLayer(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run("material.remove_layer", self.file, **{"layer": self.file.by_id(self.layer)})
         Data.load_layers()
@@ -316,7 +342,7 @@ class AddListItem(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.add_list_item",
@@ -342,7 +368,7 @@ class RemoveListItem(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "material.remove_list_item",
@@ -363,7 +389,7 @@ class EnableEditingAssignedMaterial(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         props = obj.BIMObjectMaterialProperties
         props.is_editing = True
         product_data = Data.products[obj.BIMObjectProperties.ifc_definition_id]
@@ -451,7 +477,7 @@ class DisableEditingAssignedMaterial(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         props = obj.BIMObjectMaterialProperties
         props.is_editing = False
         return {"FINISHED"}
@@ -470,10 +496,9 @@ class EditAssignedMaterial(bpy.types.Operator):
 
     def _execute(self, context):
         self.file = IfcStore.get_file()
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         props = obj.BIMObjectMaterialProperties
         product_data = Data.products[obj.BIMObjectProperties.ifc_definition_id]
-        material_set = self.file.by_id(self.material_set)
 
         if product_data["type"] == "IfcMaterial":
             bpy.ops.bim.unassign_material(obj=obj.name)
@@ -482,6 +507,8 @@ class EditAssignedMaterial(bpy.types.Operator):
             bpy.ops.bim.disable_editing_assigned_material(obj=obj.name)
             return {"FINISHED"}
 
+        material_set = self.file.by_id(self.material_set)
+
         attributes = {}
         for attribute in props.material_set_attributes:
             attributes[attribute.name] = None if attribute.is_null else attribute.string_value
@@ -495,16 +522,21 @@ class EditAssignedMaterial(bpy.types.Operator):
         if self.material_set_usage:
             material_set_usage = self.file.by_id(self.material_set_usage)
             attributes = blenderbim.bim.helper.export_attributes(props.material_set_usage_attributes)
-            if attributes.get("CardinalPoint", None):
-                attributes["CardinalPoint"] = int(attributes["CardinalPoint"])
-            ifcopenshell.api.run(
-                "material.edit_profile_usage",
-                self.file,
-                **{"usage": material_set_usage, "attributes": attributes},
-            )
             if material_set_usage.is_a("IfcMaterialLayerSetUsage"):
+                ifcopenshell.api.run(
+                    "material.edit_layer_usage",
+                    self.file,
+                    **{"usage": material_set_usage, "attributes": attributes},
+                )
                 Data.load_layer_usages()
             elif material_set_usage.is_a("IfcMaterialProfileSetUsage"):
+                if attributes.get("CardinalPoint", None):
+                    attributes["CardinalPoint"] = int(attributes["CardinalPoint"])
+                ifcopenshell.api.run(
+                    "material.edit_profile_usage",
+                    self.file,
+                    **{"usage": material_set_usage, "attributes": attributes},
+                )
                 Data.load_profile_usages()
 
         if material_set.is_a("IfcMaterialConstituentSet"):
@@ -514,8 +546,25 @@ class EditAssignedMaterial(bpy.types.Operator):
         elif material_set.is_a("IfcMaterialProfileSet"):
             Data.load_profiles()
         bpy.ops.bim.disable_editing_assigned_material(obj=obj.name)
+        self.set_default_material(obj, self.file.by_id(obj.BIMObjectProperties.ifc_definition_id))
         return {"FINISHED"}
 
+    def set_default_material(self, obj, element):
+        element_material = ifcopenshell.util.element.get_material(element)
+        material = [m for m in self.file.traverse(element_material) if m.is_a("IfcMaterial")]
+        if not material:
+            return
+
+        object_material_ids = [
+            om.BIMObjectProperties.ifc_definition_id
+            for om in obj.data.materials
+            if om is not None and om.BIMObjectProperties.ifc_definition_id
+        ]
+
+        if material[0].id() in object_material_ids:
+            return
+        obj.data.materials.append(IfcStore.get_element(material[0].id()))
+
 
 class EnableEditingMaterialSetItem(bpy.types.Operator):
     bl_idname = "bim.enable_editing_material_set_item"
@@ -526,7 +575,7 @@ class EnableEditingMaterialSetItem(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.props = obj.BIMObjectMaterialProperties
         self.props.active_material_set_item_id = self.material_set_item
         product_data = Data.products[obj.BIMObjectProperties.ifc_definition_id]
@@ -618,7 +667,7 @@ class DisableEditingMaterialSetItem(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         props = obj.BIMObjectMaterialProperties
         props.active_material_set_item_id = 0
         return {"FINISHED"}
@@ -635,7 +684,7 @@ class EditMaterialSetItem(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         props = obj.BIMObjectMaterialProperties
         product_data = Data.products[obj.BIMObjectProperties.ifc_definition_id]

src/blenderbim/blenderbim/bim/module/material/prop.py

@@ -49,6 +49,11 @@ def getParameterizedProfileClasses(self, context):
             (t.name(), t.name(), "")
             for t in IfcStore.get_schema().declaration_by_name("IfcParameterizedProfileDef").subtypes()
         ]
+        for ifc_class in parameterizedprofileclasses_enum:
+            parameterizedprofileclasses_enum.extend([
+                (t.name(), t.name(), "")
+                for t in IfcStore.get_schema().declaration_by_name(ifc_class[0]).subtypes() or []
+            ])
     return parameterizedprofileclasses_enum
 
 

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

@@ -97,6 +97,8 @@ class BIM_PT_object_material(Panel):
                 self.material_set_data = Data.lists[self.material_set_id]
                 self.set_items = self.material_set_data["Materials"] or []
                 self.set_item_name = "list_item"
+            else:
+                self.material_set_id = 0
             return self.draw_material_ui()
 
         row = self.layout.row(align=True)
@@ -316,11 +318,11 @@ class BIM_PT_object_material(Panel):
                 item_name = item.get("Name", "Unnamed") or "Unnamed"
                 thickness = item.get("LayerThickness")
                 if thickness:
-                    item_name += f" ({thickness})"
+                    item_name += f" ({thickness:.3f})"
                     total_thickness += thickness
                 row.label(text=item_name, icon="ALIGN_CENTER")
                 row.label(text=Data.materials[item["Material"]]["Name"], icon="MATERIAL")
 
         if total_thickness:
             row = self.layout.row(align=True)
-            row.label(text=f"Total Thickness: {total_thickness}")
+            row.label(text=f"Total Thickness: {total_thickness:.3f}")

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

@@ -3,11 +3,14 @@ from . import handler, prop, ui, grid, product, wall, slab, stair, door, window,
 
 classes = (
     product.AddTypeInstance,
-    wall.AddWall,
+    product.AlignProduct,
+    workspace.Hotkey,
     wall.JoinWall,
     wall.AlignWall,
     wall.FlipWall,
     wall.SplitWall,
+    wall.AddWallOpening,
+    slab.AddSlabOpening,
     prop.BIMModelProperties,
     ui.BIM_PT_authoring,
     ui.BIM_PT_authoring_architectural,

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

@@ -82,7 +82,7 @@ def add_object(self, context):
     obj = bpy.data.objects.new("Door Profile", mesh)
 
     context.view_layer.active_layer_collection.collection.objects.link(obj)
-    bpy.context.view_layer.objects.active = obj
+    context.view_layer.objects.active = obj
     obj.select_set(True)
     bpy.ops.object.convert(target="CURVE")
 
@@ -100,7 +100,7 @@ def add_object(self, context):
     obj2 = bpy.data.objects.new("Door", mesh)
 
     context.view_layer.active_layer_collection.collection.objects.link(obj2)
-    bpy.context.view_layer.objects.active = obj2
+    context.view_layer.objects.active = obj2
     obj2.select_set(True)
     bpy.ops.object.convert(target="CURVE")
 
@@ -130,11 +130,11 @@ def add_object(self, context):
     modifier.thickness = self.overall_height - 0.045
 
     context.view_layer.active_layer_collection.collection.objects.link(obj3)
-    bpy.context.view_layer.objects.active = obj3
+    context.view_layer.objects.active = obj3
     obj3.select_set(True)
     bpy.ops.object.convert(target="MESH")
 
-    ctx = bpy.context.copy()
+    ctx = context.copy()
     ctx["active_object"] = obj2
     ctx["selected_editable_objects"] = [obj2, obj3]
     bpy.ops.object.join(ctx)
@@ -156,7 +156,7 @@ def add_object(self, context):
     modifier.thickness = self.overall_height + 0.1
 
     context.view_layer.active_layer_collection.collection.objects.link(obj4)
-    bpy.context.view_layer.objects.active = obj4
+    context.view_layer.objects.active = obj4
     obj4.select_set(True)
     bpy.ops.object.convert(target="MESH")
 

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

@@ -12,7 +12,7 @@ def add_object(self, context):
 
     collection = bpy.data.collections.new(obj.name)
     has_site_collection = False
-    for child in bpy.context.view_layer.layer_collection.children:
+    for child in context.view_layer.layer_collection.children:
         if "IfcProject/" not in child.name:
             continue
         for grandchild in child.children:
@@ -22,7 +22,7 @@ def add_object(self, context):
             grandchild.collection.children.link(collection)
             break
     if not has_site_collection:
-        bpy.context.view_layer.active_layer_collection.collection.children.link(collection)
+        context.view_layer.active_layer_collection.collection.children.link(collection)
     collection.objects.link(obj)
 
     self.file = IfcStore.get_file()

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

@@ -1,13 +1,17 @@
 import bpy
 import ifcopenshell
 import ifcopenshell.api
-from blenderbim.bim.module.model import product, wall, slab, column
+from blenderbim.bim.module.model import root, product, wall, slab, profile, opening
 from blenderbim.bim.ifc import IfcStore
 from bpy.app.handlers import persistent
 
 
 @persistent
 def load_post(*args):
+    ifcopenshell.api.add_pre_listener(
+        "attribute.edit_attributes", "BlenderBIM.Root.SyncName", root.sync_name
+    )
+
     ifcopenshell.api.add_post_listener(
         "geometry.add_representation", "BlenderBIM.Product.GenerateBox", product.generate_box
     )
@@ -17,6 +21,8 @@ def load_post(*args):
         product.regenerate_profile_usage,
     )
 
+    IfcStore.add_element_listener(opening.element_listener)
+
     IfcStore.add_element_listener(wall.element_listener)
     ifcopenshell.api.add_pre_listener(
         "geometry.add_representation", "BlenderBIM.DumbWall.EnsureSolid", wall.ensure_solid
@@ -51,17 +57,22 @@ def load_post(*args):
         "type.assign_type", "BlenderBIM.DumbSlab.RegenerateFromType", slab.DumbSlabPlaner().regenerate_from_type
     )
 
-    IfcStore.add_element_listener(column.element_listener)
+    IfcStore.add_element_listener(profile.element_listener)
     ifcopenshell.api.add_pre_listener(
-        "geometry.add_representation", "BlenderBIM.DumbColumn.EnsureSolid", column.ensure_solid
+        "geometry.add_representation", "BlenderBIM.DumbProfile.EnsureSolid", profile.ensure_solid
+    )
+    ifcopenshell.api.add_pre_listener(
+        "material.edit_profile",
+        "BlenderBIM.DumbProfile.SyncObjectFromProfile",
+        profile.DumbProfileRegenerator().sync_object_from_profile,
     )
     ifcopenshell.api.add_post_listener(
         "material.edit_profile",
-        "BlenderBIM.DumbColumn.RegenerateFromProfile",
-        column.DumbColumnRegenerator().regenerate_from_profile,
+        "BlenderBIM.DumbProfile.RegenerateFromProfile",
+        profile.DumbProfileRegenerator().regenerate_from_profile,
     )
     ifcopenshell.api.add_post_listener(
         "type.assign_type",
-        "BlenderBIM.DumbColumn.RegenerateFromType",
-        column.DumbColumnRegenerator().regenerate_from_type,
+        "BlenderBIM.DumbProfile.RegenerateFromType",
+        profile.DumbProfileRegenerator().regenerate_from_type,
     )

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

@@ -1,10 +1,57 @@
 import bpy
 import bmesh
+import blenderbim.bim.handler
+import ifcopenshell
+import ifcopenshell.util.representation
+from blenderbim.bim.ifc import IfcStore
+from math import pi
 from bpy.types import Operator
 from bpy.props import FloatProperty
 from bpy_extras.object_utils import AddObjectHelper, object_data_add
 
 
+def element_listener(element, obj):
+    blenderbim.bim.handler.subscribe_to(obj, "mode", mode_callback)
+
+
+def mode_callback(obj, data):
+    for obj in set(bpy.context.selected_objects + [bpy.context.active_object]):
+        if (
+            obj.mode != "EDIT"
+            or not obj.data
+            or not isinstance(obj.data, (bpy.types.Mesh, bpy.types.Curve, bpy.types.TextCurve))
+            or not obj.BIMObjectProperties.ifc_definition_id
+            or not bpy.context.scene.BIMProjectProperties.is_authoring
+        ):
+            return
+        product = IfcStore.get_file().by_id(obj.BIMObjectProperties.ifc_definition_id)
+        if not product.is_a("IfcOpeningElement"):
+            return
+        for rel in product.VoidsElements:
+            building_element_obj = IfcStore.get_element(rel.RelatingBuildingElement.id())
+            if not building_element_obj:
+                continue
+            if [m for m in building_element_obj.modifiers if m.type == "BOOLEAN"]:
+                continue
+            representation = ifcopenshell.util.representation.get_representation(
+                rel.RelatingBuildingElement, "Model", "Body", "MODEL_VIEW"
+            )
+            if not representation:
+                continue
+            bpy.ops.bim.switch_representation(
+                obj=building_element_obj.name,
+                should_switch_all_meshes=True,
+                should_reload=True,
+                ifc_definition_id=representation.id(),
+                disable_opening_subtractions=True,
+            )
+        IfcStore.edited_objs.add(obj)
+        bm = bmesh.from_edit_mesh(obj.data)
+        bmesh.ops.dissolve_limit(bm, angle_limit=pi / 180 * 1, verts=bm.verts, edges=bm.edges)
+        bmesh.update_edit_mesh(obj.data)
+        bm.free()
+
+
 def add_object(self, context):
     bm = bmesh.new()
     bmesh.ops.create_cube(bm, size=self.size)

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

@@ -1,5 +1,5 @@
 import bpy
-
+from blenderbim.bim.ifc import IfcStore
 
 class OpenPieClass(bpy.types.Operator):
     bl_idname = "bim.open_pie_class"

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

@@ -1,12 +1,13 @@
 import bpy
+import mathutils
 import ifcopenshell
 import ifcopenshell.api
 import ifcopenshell.util.element
 import ifcopenshell.util.representation
-from . import wall, slab, column
+from . import wall, slab, profile
 from blenderbim.bim.ifc import IfcStore
 from ifcopenshell.api.pset.data import Data as PsetData
-from mathutils import Vector
+from mathutils import Vector, Matrix
 
 
 class AddTypeInstance(bpy.types.Operator):
@@ -35,8 +36,8 @@ class AddTypeInstance(bpy.types.Operator):
             obj = slab.DumbSlabGenerator(self.file.by_id(int(relating_type))).generate()
             if obj:
                 return {"FINISHED"}
-        elif ifc_class == "IfcColumnType":
-            obj = column.DumbColumnGenerator(self.file.by_id(int(relating_type))).generate()
+        elif ifc_class in ["IfcColumnType", "IfcBeamType", "IfcMemberType"]:
+            obj = profile.DumbProfileGenerator(self.file.by_id(int(relating_type))).generate()
             if obj:
                 return {"FINISHED"}
         # A cube
@@ -63,7 +64,7 @@ class AddTypeInstance(bpy.types.Operator):
         mesh.from_pydata(verts, edges, faces)
         obj = bpy.data.objects.new("Instance", mesh)
         obj.location = context.scene.cursor.location
-        collection = bpy.context.view_layer.active_layer_collection.collection
+        collection = context.view_layer.active_layer_collection.collection
         collection.objects.link(obj)
         collection_obj = bpy.data.objects.get(collection.name)
         bpy.ops.bim.assign_class(obj=obj.name, ifc_class=instance_class)
@@ -73,6 +74,52 @@ class AddTypeInstance(bpy.types.Operator):
         return {"FINISHED"}
 
 
+class AlignProduct(bpy.types.Operator):
+    bl_idname = "bim.align_product"
+    bl_label = "Align Product"
+    bl_options = {"REGISTER", "UNDO"}
+    align_type: bpy.props.StringProperty()
+
+    def execute(self, context):
+        selected_objs = context.selected_objects
+        if len(selected_objs) < 2 or not context.active_object:
+            return {"FINISHED"}
+        if self.align_type == "CENTERLINE":
+            point = context.active_object.matrix_world @ (
+                Vector(context.active_object.bound_box[0]) + (context.active_object.dimensions / 2)
+            )
+        elif self.align_type == "POSITIVE":
+            point = context.active_object.matrix_world @ Vector(context.active_object.bound_box[6])
+        elif self.align_type == "NEGATIVE":
+            point = context.active_object.matrix_world @ Vector(context.active_object.bound_box[0])
+
+        active_x_axis = context.active_object.matrix_world.to_quaternion() @ Vector((1, 0, 0))
+        active_y_axis = context.active_object.matrix_world.to_quaternion() @ Vector((0, 1, 0))
+        active_z_axis = context.active_object.matrix_world.to_quaternion() @ Vector((0, 0, 1))
+
+        x_distances = self.get_axis_distances(point, active_x_axis, context)
+        y_distances = self.get_axis_distances(point, active_y_axis, context)
+        if abs(sum(x_distances)) < abs(sum(y_distances)):
+            for i, obj in enumerate(selected_objs):
+                obj.matrix_world = Matrix.Translation(active_x_axis * -x_distances[i]) @ obj.matrix_world
+        else:
+            for i, obj in enumerate(selected_objs):
+                obj.matrix_world = Matrix.Translation(active_y_axis * -y_distances[i]) @ obj.matrix_world
+        return {"FINISHED"}
+
+    def get_axis_distances(self, point, axis, context):
+        results = []
+        for obj in context.selected_objects:
+            if self.align_type == "CENTERLINE":
+                obj_point = obj.matrix_world @ (Vector(obj.bound_box[0]) + (obj.dimensions / 2))
+            elif self.align_type == "POSITIVE":
+                obj_point = obj.matrix_world @ Vector(obj.bound_box[6])
+            elif self.align_type == "NEGATIVE":
+                obj_point = obj.matrix_world @ Vector(obj.bound_box[0])
+            results.append(mathutils.geometry.distance_point_to_plane(obj_point, point, axis))
+        return results
+
+
 def generate_box(usecase_path, ifc_file, settings):
     box_context = ifcopenshell.util.representation.get_context(ifc_file, "Model", "Box", "MODEL_VIEW")
     if not box_context:
@@ -98,6 +145,7 @@ def generate_box(usecase_path, ifc_file, settings):
             **{"product": product, "representation": new_box}
         )
 
+
 def regenerate_profile_usage(usecase_path, ifc_file, settings):
     elements = []
     if ifc_file.schema == "IFC2X3":
@@ -117,4 +165,6 @@ def regenerate_profile_usage(usecase_path, ifc_file, settings):
             continue
         representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
         if representation:
-            bpy.ops.bim.switch_representation(obj=obj.name, ifc_definition_id=representation.id(), should_reload=True)
+            bpy.ops.bim.switch_representation(
+                obj=obj.name, ifc_definition_id=representation.id(), should_reload=True, should_switch_all_meshes=True
+            )

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

@@ -20,10 +20,9 @@ def element_listener(element, obj):
 
 
 def mode_callback(obj, data):
-    for obj in bpy.context.selected_objects + [bpy.context.active_object]:
+    for obj in set(bpy.context.selected_objects + [bpy.context.active_object]):
         if (
-            obj.mode != "EDIT"
-            or not obj.data
+            not obj.data
             or not isinstance(obj.data, (bpy.types.Mesh, bpy.types.Curve, bpy.types.TextCurve))
             or not obj.BIMObjectProperties.ifc_definition_id
             or not bpy.context.scene.BIMProjectProperties.is_authoring
@@ -31,19 +30,51 @@ def mode_callback(obj, data):
             return
         product = IfcStore.get_file().by_id(obj.BIMObjectProperties.ifc_definition_id)
         parametric = ifcopenshell.util.element.get_psets(product).get("EPset_Parametric")
-        if not parametric or parametric["Engine"] != "BlenderBIM.DumbColumn":
+        if not parametric or parametric["Engine"] != "BlenderBIM.DumbProfile":
             return
-        IfcStore.edited_objs.add(obj)
-        bm = bmesh.from_edit_mesh(obj.data)
-        bmesh.ops.dissolve_limit(bm, angle_limit=pi / 180 * 1, verts=bm.verts, edges=bm.edges)
-        bmesh.update_edit_mesh(obj.data)
-        bm.free()
+        if obj.mode == "EDIT":
+            IfcStore.edited_objs.add(obj)
+            bm = bmesh.from_edit_mesh(obj.data)
+            bmesh.ops.dissolve_limit(bm, angle_limit=pi / 180 * 1, verts=bm.verts, edges=bm.edges)
+            bmesh.update_edit_mesh(obj.data)
+            bm.free()
+        else:
+            material_usage = ifcopenshell.util.element.get_material(product)
+            x, y = obj.dimensions[0:2]
+            if not material_usage.CardinalPoint:
+                new_origin = obj.matrix_world @ (Vector(obj.bound_box[0]) + (Vector((x, y, 0)) / 2))
+            elif material_usage.CardinalPoint == 1:
+                new_origin = obj.matrix_world @ Vector(obj.bound_box[4])
+            elif material_usage.CardinalPoint == 2:
+                new_origin = obj.matrix_world @ (Vector(obj.bound_box[0]) + (Vector((x, 0, 0)) / 2))
+            elif material_usage.CardinalPoint == 3:
+                new_origin = obj.matrix_world @ Vector(obj.bound_box[0])
+            elif material_usage.CardinalPoint == 4:
+                new_origin = obj.matrix_world @ (Vector(obj.bound_box[4]) + (Vector((0, y, 0)) / 2))
+            elif material_usage.CardinalPoint == 5:
+                new_origin = obj.matrix_world @ (Vector(obj.bound_box[0]) + (Vector((x, y, 0)) / 2))
+            elif material_usage.CardinalPoint == 6:
+                new_origin = obj.matrix_world @ (Vector(obj.bound_box[0]) + (Vector((0, y, 0)) / 2))
+            elif material_usage.CardinalPoint == 7:
+                new_origin = obj.matrix_world @ Vector(obj.bound_box[7])
+            elif material_usage.CardinalPoint == 8:
+                new_origin = obj.matrix_world @ (Vector(obj.bound_box[3]) + (Vector((x, 0, 0)) / 2))
+            elif material_usage.CardinalPoint == 9:
+                new_origin = obj.matrix_world @ Vector(obj.bound_box[3])
+            if (obj.matrix_world.translation - new_origin).length < 0.001:
+                return
+            obj.data.transform(
+                Matrix.Translation(
+                    (obj.matrix_world.inverted().to_quaternion() @ (obj.matrix_world.translation - new_origin))
+                )
+            )
+            obj.matrix_world.translation = new_origin
 
 
 def ensure_solid(usecase_path, ifc_file, settings):
     product = ifc_file.by_id(settings["blender_object"].BIMObjectProperties.ifc_definition_id)
     parametric = ifcopenshell.util.element.get_psets(product).get("EPset_Parametric")
-    if not parametric or parametric["Engine"] != "BlenderBIM.DumbColumn":
+    if not parametric or parametric["Engine"] != "BlenderBIM.DumbProfile":
         return
     material = ifcopenshell.util.element.get_material(product)
     if material and material.is_a("IfcMaterialProfileSetUsage"):
@@ -53,7 +84,7 @@ def ensure_solid(usecase_path, ifc_file, settings):
     settings["ifc_representation_class"] = "IfcExtrudedAreaSolid/IfcMaterialProfileSetUsage"
 
 
-class DumbColumnGenerator:
+class DumbProfileGenerator:
     def __init__(self, relating_type):
         self.relating_type = relating_type
 
@@ -75,9 +106,9 @@ class DumbColumnGenerator:
 
     def derive_from_cursor(self):
         self.location = bpy.context.scene.cursor.location
-        return self.create_column()
+        return self.create_profile()
 
-    def create_column(self):
+    def create_profile(self):
         # A cube
         verts = [
             Vector((-1, -1, -1)),
@@ -99,17 +130,32 @@ class DumbColumnGenerator:
             [0, 2, 6, 4],
         ]
 
-        mesh = bpy.data.meshes.new(name="Dumb Column")
+        mesh = bpy.data.meshes.new(name="Dumb Profile")
         mesh.from_pydata(verts, edges, faces)
-        obj = bpy.data.objects.new("Column", mesh)
-        obj.name = "Column"
+        obj = bpy.data.objects.new("Profile", mesh)
         obj.location = self.location
         if self.collection_obj and self.collection_obj.BIMObjectProperties.ifc_definition_id:
             obj.location[2] = self.collection_obj.location[2]
         self.collection.objects.link(obj)
-        bpy.ops.bim.assign_class(
-            obj=obj.name, ifc_class="IfcColumn", predefined_type="COLUMN", should_add_representation=False
-        )
+        if self.relating_type.is_a("IfcColumnType"):
+            obj.name = "Column"
+            bpy.ops.bim.assign_class(
+                obj=obj.name, ifc_class="IfcColumn", predefined_type="COLUMN", should_add_representation=False
+            )
+        elif self.relating_type.is_a("IfcBeamType"):
+            obj.name = "Beam"
+            obj.rotation_euler[0] = math.pi / 2
+            obj.rotation_euler[2] = math.pi / 2
+            bpy.ops.bim.assign_class(
+                obj=obj.name, ifc_class="IfcBeam", predefined_type="BEAM", should_add_representation=False
+            )
+        elif self.relating_type.is_a("IfcMemberType"):
+            obj.name = "Member"
+            obj.rotation_euler[0] = math.pi / 2
+            obj.rotation_euler[2] = math.pi / 2
+            bpy.ops.bim.assign_class(
+                obj=obj.name, ifc_class="IfcMember", predefined_type="MEMBER", should_add_representation=False
+            )
         element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
         bpy.ops.bim.assign_type(relating_type=self.relating_type.id(), related_object=obj.name)
         profile_set_usage = ifcopenshell.util.element.get_material(element)
@@ -120,40 +166,52 @@ class DumbColumnGenerator:
             profile_set_usage=profile_set_usage.id(),
         )
         representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
-        bpy.ops.bim.switch_representation(obj=obj.name, ifc_definition_id=representation.id(), should_reload=True)
+        bpy.ops.bim.switch_representation(
+            obj=obj.name, ifc_definition_id=representation.id(), should_reload=True, should_switch_all_meshes=True
+        )
         pset = ifcopenshell.api.run("pset.add_pset", self.file, product=element, name="EPset_Parametric")
-        ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"Engine": "BlenderBIM.DumbColumn"})
+        ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"Engine": "BlenderBIM.DumbProfile"})
         MaterialData.load(self.file)
         obj.select_set(True)
         return obj
 
 
-class DumbColumnRegenerator:
+class DumbProfileRegenerator:
     def regenerate_from_profile(self, usecase_path, ifc_file, settings):
-        self.file = IfcStore.get_file()
-        self.unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
+        self.file = ifc_file
         profile = settings["profile"].Profile
         if not profile:
             return
+        for element in self.get_elements_using_profile(profile):
+            self.change_profile(element)
+
+    def sync_object_from_profile(self, usecase_path, ifc_file, settings):
+        self.file = ifc_file
+        profile = settings["profile"].Profile
+        if not profile:
+            return
+        for element in self.get_elements_using_profile(profile):
+            self.sync_object(element)
+
+    def get_elements_using_profile(self, profile):
+        results = []
         for profile_set in [
             mp.ToMaterialProfileSet[0] for mp in self.file.get_inverse(profile) if mp.is_a("IfcMaterialProfile")
         ]:
-            for inverse in ifc_file.get_inverse(profile_set):
+            for inverse in self.file.get_inverse(profile_set):
                 if not inverse.is_a("IfcMaterialProfileSetUsage"):
                     continue
-                if ifc_file.schema == "IFC2X3":
-                    for rel in ifc_file.get_inverse(inverse):
+                if self.file.schema == "IFC2X3":
+                    for rel in self.file.get_inverse(inverse):
                         if not rel.is_a("IfcRelAssociatesMaterial"):
                             continue
-                        for element in rel.RelatedObjects:
-                            self.change_profile(element)
+                        results.extend(rel.RelatedObjects)
                 else:
                     for rel in inverse.AssociatedTo:
-                        for element in rel.RelatedObjects:
-                            self.change_profile(element)
+                        results.extend(rel.RelatedObjects)
+        return results
 
     def regenerate_from_type(self, usecase_path, ifc_file, settings):
-        self.unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
         new_material = ifcopenshell.util.element.get_material(settings["relating_type"])
         if not new_material or not new_material.is_a("IfcMaterialProfileSet"):
             return
@@ -165,4 +223,12 @@ class DumbColumnRegenerator:
             return
         representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
         if representation:
-            bpy.ops.bim.switch_representation(obj=obj.name, ifc_definition_id=representation.id(), should_reload=True)
+            bpy.ops.bim.switch_representation(
+                obj=obj.name, ifc_definition_id=representation.id(), should_reload=True, should_switch_all_meshes=True
+            )
+
+    def sync_object(self, element):
+        obj = IfcStore.get_element(element.id())
+        if not obj or obj not in IfcStore.edited_objs:
+            return
+        bpy.ops.bim.update_representation(obj=obj.name)

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

@@ -0,0 +1,22 @@
+import bpy
+from blenderbim.bim.ifc import IfcStore
+from ifcopenshell.api.style.data import Data as StyleData
+
+
+def sync_name(usecase_path, ifc_file, settings):
+    if "Name" not in settings["attributes"]:
+        return
+    obj = IfcStore.get_element(settings["product"].id())
+    if not obj:
+        return
+    if isinstance(obj, bpy.types.Object):
+        new_name = "{}/{}".format(settings["product"].is_a(), settings["attributes"]["Name"] or "Unnamed")
+    elif isinstance(obj, bpy.types.Material):
+        new_name = settings["attributes"]["Name"] or "Unnamed"
+        if obj.BIMMaterialProperties.ifc_style_id:
+            IfcStore.get_file().by_id(obj.BIMMaterialProperties.ifc_style_id).Name = new_name
+            StyleData.load(IfcStore.get_file(), obj.BIMMaterialProperties.ifc_style_id)
+    collection = bpy.data.collections.get(obj.name)
+    if collection:
+        collection.name = new_name
+    obj.name = new_name

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

@@ -195,6 +195,44 @@ def calculate_quantities(usecase_path, ifc_file, settings):
     PsetData.load(ifc_file, obj.BIMObjectProperties.ifc_definition_id)
 
 
+class AddSlabOpening(bpy.types.Operator):
+    bl_idname = "bim.add_slab_opening"
+    bl_label = "Add Slab Opening"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        selected_objs = context.selected_objects
+        if len(selected_objs) == 0 or not context.active_object:
+            return {"FINISHED"}
+        slab_obj = context.active_object
+        if not slab_obj.BIMObjectProperties.ifc_definition_id:
+            return {"FINISHED"}
+        slab = IfcStore.get_file().by_id(slab_obj.BIMObjectProperties.ifc_definition_id)
+        if not slab.is_a("IfcSlab"):
+            return {"FINISHED"}
+        local_location = slab_obj.matrix_world.inverted() @ context.scene.cursor.location
+        raycast = slab_obj.closest_point_on_mesh(local_location, distance=0.01)
+        if not raycast[0]:
+            return {"FINISHED"}
+        bpy.ops.mesh.primitive_cube_add(size=slab_obj.dimensions[2] * 2)
+        opening = context.selected_objects[0]
+
+        # Place the opening in the middle of the slab
+        global_location = slab_obj.matrix_world @ raycast[1]
+        normal = raycast[2]
+        normal.negate()
+        global_normal = slab_obj.matrix_world.to_quaternion() @ normal
+        opening.location = global_location + (global_normal * (slab_obj.dimensions[2] / 2))
+
+        opening.rotation_euler = slab_obj.rotation_euler
+        opening.name = "Opening"
+        bpy.ops.bim.add_opening(opening=opening.name, obj=slab_obj.name)
+        return {"FINISHED"}
+
+
 class DumbSlabGenerator:
     def __init__(self, relating_type):
         self.relating_type = relating_type

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

@@ -20,7 +20,7 @@ def element_listener(element, obj):
 
 
 def mode_callback(obj, data):
-    for obj in bpy.context.selected_objects + [bpy.context.active_object]:
+    for obj in set(bpy.context.selected_objects + [bpy.context.active_object]):
         if (
             obj.mode != "EDIT"
             or not obj.data
@@ -33,21 +33,65 @@ def mode_callback(obj, data):
         parametric = ifcopenshell.util.element.get_psets(product).get("EPset_Parametric")
         if not parametric or parametric["Engine"] != "BlenderBIM.DumbWall":
             return
+        if product.HasOpenings:
+            if [m for m in obj.modifiers if m.type == "BOOLEAN"]:
+                continue
+            representation = ifcopenshell.util.representation.get_representation(
+                product, "Model", "Body", "MODEL_VIEW"
+            )
+            if not representation:
+                continue
+            bpy.ops.object.mode_set(mode='OBJECT')
+            bpy.ops.bim.switch_representation(
+                obj=obj.name,
+                should_switch_all_meshes=True,
+                should_reload=True,
+                ifc_definition_id=representation.id(),
+                disable_opening_subtractions=True,
+            )
+            bpy.ops.object.mode_set(mode='EDIT')
         IfcStore.edited_objs.add(obj)
+        bm = bmesh.from_edit_mesh(obj.data)
+        bmesh.ops.dissolve_limit(bm, angle_limit=pi / 180 * 1, verts=bm.verts, edges=bm.edges)
+        bmesh.update_edit_mesh(obj.data)
+        bm.free()
 
 
-class AddWall(bpy.types.Operator):
-    bl_idname = "bim.add_wall"
-    bl_label = "Add Wall"
+class AddWallOpening(bpy.types.Operator):
+    bl_idname = "bim.add_wall_opening"
+    bl_label = "Add Wall Opening"
     bl_options = {"REGISTER", "UNDO"}
-    join_type: bpy.props.StringProperty()
 
     def execute(self, context):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        props = context.scene.BIMModelProperties
-        bpy.ops.bim.add_type_instance(ifc_class="IfcWallType", relating_type=int(props.relating_type))
+        selected_objs = context.selected_objects
+        if len(selected_objs) == 0 or not context.active_object:
+            return {"FINISHED"}
+        wall_obj = context.active_object
+        if not wall_obj.BIMObjectProperties.ifc_definition_id:
+            return {"FINISHED"}
+        wall = IfcStore.get_file().by_id(wall_obj.BIMObjectProperties.ifc_definition_id)
+        if not wall.is_a("IfcWall"):
+            return {"FINISHED"}
+        local_location = wall_obj.matrix_world.inverted() @ context.scene.cursor.location
+        raycast = wall_obj.closest_point_on_mesh(local_location, distance=0.01)
+        if not raycast[0]:
+            return {"FINISHED"}
+        bpy.ops.mesh.primitive_cube_add(size=wall_obj.dimensions[1] * 2)
+        opening = bpy.context.selected_objects[0]
+
+        # Place the opening in the middle of the wall
+        global_location = wall_obj.matrix_world @ raycast[1]
+        normal = raycast[2]
+        normal.negate()
+        global_normal = wall_obj.matrix_world.to_quaternion() @ normal
+        opening.location = global_location + (global_normal * (wall_obj.dimensions[1] / 2))
+
+        opening.rotation_euler = wall_obj.rotation_euler
+        opening.name = "Opening"
+        bpy.ops.bim.add_opening(opening=opening.name, obj=wall_obj.name)
         return {"FINISHED"}
 
 
@@ -65,7 +109,13 @@ class JoinWall(bpy.types.Operator):
             for obj in selected_objs:
                 DumbWallJoiner(obj, obj).unjoin()
             return {"FINISHED"}
-        if len(selected_objs) < 2 or not context.active_object:
+        if not context.active_object:
+            return {"FINISHED"}
+        if len(selected_objs) == 1:
+            DumbWallJoiner(context.active_object, target_coordinate=context.scene.cursor.location).extend()
+            IfcStore.edited_objs.add(context.active_object)
+            return {"FINISHED"}
+        if len(selected_objs) < 2:
             return {"FINISHED"}
         for obj in selected_objs:
             if obj == context.active_object:
@@ -327,16 +377,19 @@ class DumbWallJoiner:
     #  2. Given an "end face", identify a side "target face" of the other wall
     #     to project towards.
     #  3. Project the vertices of an "end face" to the "target face".
-    def __init__(self, wall1, wall2):
+    # Alternatively, a target coordinate may be provided as an imaginary point for the wall to join to
+    def __init__(self, wall1, wall2=None, target_coordinate=None):
         self.wall1 = wall1
         self.wall2 = wall2
+        self.target_coordinate = target_coordinate
         self.should_project_to_frontface = True
         self.should_attempt_v_junction_projection = False
         self.initialise_convenience_variables()
 
     def initialise_convenience_variables(self):
         self.wall1_matrix = self.wall1.matrix_world
-        self.wall2_matrix = self.wall2.matrix_world
+        if self.wall2:
+            self.wall2_matrix = self.wall2.matrix_world
         self.pos_x = self.wall1_matrix.to_quaternion() @ Vector((1, 0, 0))
         self.neg_x = self.wall1_matrix.to_quaternion() @ Vector((-1, 0, 0))
 
@@ -354,6 +407,26 @@ class DumbWallJoiner:
                 self.wall1.data.vertices[v].co[0] = max_x
         self.recalculate_origins()
 
+    # An extension is where a single end of wall1 is projected to an imaginary
+    # plane denoted by the target coordinate.
+    def extend(self):
+        wall1_min_faces, wall1_max_faces = self.get_wall_end_faces(self.wall1)
+        ef1_distance = abs(mathutils.geometry.distance_point_to_plane(
+            self.wall1_matrix @ self.wall1.data.vertices[wall1_min_faces[0].vertices[0]].co,
+            self.target_coordinate,
+            self.pos_x,
+        ))
+        ef2_distance = abs(mathutils.geometry.distance_point_to_plane(
+            self.wall1_matrix @ self.wall1.data.vertices[wall1_max_faces[0].vertices[0]].co,
+            self.target_coordinate,
+            self.neg_x,
+        ))
+        if ef1_distance < ef2_distance:
+            self.project_end_faces_to_target(wall1_min_faces)
+        else:
+            self.project_end_faces_to_target(wall1_max_faces)
+        self.recalculate_origins()
+
     # A T-junction is an ordered operation where a single end of wall1 is joined
     # to wall2 if possible (i.e. walls aren't parallel). Wall2 is not modified.
     # First, wall1 end faces are identified. We attempt to project an end face
@@ -439,7 +512,8 @@ class DumbWallJoiner:
     def recalculate_origins(self):
         bpy.context.view_layer.update()
         recalculate_dumb_wall_origin(self.wall1)
-        recalculate_dumb_wall_origin(self.wall2)
+        if self.wall2:
+            recalculate_dumb_wall_origin(self.wall2)
 
     def swap_walls(self):
         self.wall1, self.wall2 = self.wall2, self.wall1
@@ -467,6 +541,14 @@ class DumbWallJoiner:
         local_point = wall_matrix.inverted() @ point
         wall.data.vertices[v].co = local_point
 
+    def project_end_faces_to_target(self, end_faces):
+        for end_face in end_faces:
+            for v in end_face.vertices:
+                vertex = self.wall1_matrix @ self.wall1.data.vertices[v].co
+                self.wall1.data.vertices[v].co = self.wall1_matrix.inverted() @ mathutils.geometry.intersect_line_plane(
+                    vertex, vertex + self.pos_x, self.target_coordinate, self.pos_x
+                )
+
     # A projection target face is a side face on the target wall that has a
     # significant local Y component to its normal (i.e. is not pointing up or
     # down or something). In addition, its plane must intersect with the

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

@@ -67,7 +67,7 @@ def add_object(self, context):
     obj = bpy.data.objects.new("Window Profile", mesh)
 
     context.view_layer.active_layer_collection.collection.objects.link(obj)
-    bpy.context.view_layer.objects.active = obj
+    context.view_layer.objects.active = obj
     obj.select_set(True)
     bpy.ops.object.convert(target="CURVE")
 
@@ -85,7 +85,7 @@ def add_object(self, context):
     obj2 = bpy.data.objects.new("Window", mesh)
 
     context.view_layer.active_layer_collection.collection.objects.link(obj2)
-    bpy.context.view_layer.objects.active = obj2
+    context.view_layer.objects.active = obj2
     obj2.select_set(True)
     bpy.ops.object.convert(target="CURVE")
     obj2.data.splines[0].use_cyclic_u = True
@@ -116,11 +116,11 @@ def add_object(self, context):
     modifier.thickness = self.overall_height - 0.08
 
     context.view_layer.active_layer_collection.collection.objects.link(obj3)
-    bpy.context.view_layer.objects.active = obj3
+    context.view_layer.objects.active = obj3
     obj3.select_set(True)
     bpy.ops.object.convert(target="MESH")
 
-    ctx = bpy.context.copy()
+    ctx = context.copy()
     ctx["active_object"] = obj2
     ctx["selected_editable_objects"] = [obj2, obj3]
     bpy.ops.object.join(ctx)
@@ -142,7 +142,7 @@ def add_object(self, context):
     modifier.thickness = self.overall_height
 
     context.view_layer.active_layer_collection.collection.objects.link(obj4)
-    bpy.context.view_layer.objects.active = obj4
+    context.view_layer.objects.active = obj4
     obj4.select_set(True)
     bpy.ops.object.convert(target="MESH")
     obj4.display_type = "WIRE"

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

@@ -1,6 +1,7 @@
 import os
 import bpy
 from bpy.types import WorkSpaceTool
+from blenderbim.bim.ifc import IfcStore
 
 
 class BimTool(WorkSpaceTool):
@@ -16,44 +17,120 @@ class BimTool(WorkSpaceTool):
     bl_keymap = (
         # ("bim.wall_tool_op", {"type": 'MOUSEMOVE', "value": 'ANY'}, {"properties": []}),
         # ("mesh.add_wall", {"type": 'LEFTMOUSE', "value": 'PRESS'}, {"properties": []}),
-        ("bim.add_wall", {"type": "A", "value": "PRESS", "shift": True}, {"properties": []}),
-        ("bim.join_wall", {"type": "E", "value": "PRESS", "shift": True}, {"properties": [("join_type", "T")]}),
+        ("bim.add_type_instance", {"type": "A", "value": "PRESS", "shift": True}, {"properties": []}),
+        ("bim.hotkey", {"type": "E", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_E")]}),
         ("bim.join_wall", {"type": "T", "value": "PRESS", "shift": True}, {"properties": [("join_type", "L")]}),
         ("bim.join_wall", {"type": "Y", "value": "PRESS", "shift": True}, {"properties": [("join_type", "V")]}),
         ("bim.flip_wall", {"type": "F", "value": "PRESS", "shift": True}, {"properties": []}),
         ("bim.split_wall", {"type": "S", "value": "PRESS", "shift": True}, {"properties": []}),
-        (
-            "bim.align_wall",
-            {"type": "X", "value": "PRESS", "shift": True},
-            {"properties": [("align_type", "EXTERIOR")]},
-        ),
-        (
-            "bim.align_wall",
-            {"type": "C", "value": "PRESS", "shift": True},
-            {"properties": [("align_type", "CENTERLINE")]},
-        ),
-        (
-            "bim.align_wall",
-            {"type": "V", "value": "PRESS", "shift": True},
-            {"properties": [("align_type", "INTERIOR")]},
-        ),
+        ("bim.hotkey", {"type": "X", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_X")]}),
+        ("bim.hotkey", {"type": "C", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_C")]}),
+        ("bim.hotkey", {"type": "V", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_V")]}),
+        ("bim.hotkey", {"type": "O", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_O")]}),
+        ("bim.hotkey", {"type": "O", "value": "PRESS", "alt": True}, {"properties": [("hotkey", "A_O")]}),
     )
 
     def draw_settings(context, layout, tool):
-        props = context.scene.BIMModelProperties
         row = layout.row(align=True)
+        props = context.scene.BIMTypeProperties
+        row.prop(props, "ifc_class", text="")
         row.prop(props, "relating_type", text="")
 
         row.label(text="", icon="BLANK1")
 
+        row = layout.row(align=True)
         row.label(text="", icon="EVENT_SHIFT")
-        row.label(text="Add", icon="EVENT_A")
-        row.label(text="Extend", icon="EVENT_E")
-        row.label(text="Butt", icon="EVENT_T")
-        row.label(text="Mitre", icon="EVENT_Y")
-        row.label(text="Flip", icon="EVENT_F")
-        row.label(text="Split", icon="EVENT_S")
-        row.label(text="", icon="EVENT_X")
-        row.label(text="", icon="EVENT_C")
-        row.label(text="", icon="EVENT_V")
+        row.label(text="Add Type Instance", icon="EVENT_A")
+
+        if props.ifc_class == "IfcWallType":
+            row = layout.row(align=True)
+            row.label(text="Join")
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Extend", icon="EVENT_E")
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Butt", icon="EVENT_T")
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Mitre", icon="EVENT_Y")
+
+            row = layout.row(align=True)
+            row.label(text="Wall Tools")
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Flip", icon="EVENT_F")
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Split", icon="EVENT_S")
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Opening", icon="EVENT_O")
+
+        if props.ifc_class == "IfcSlabType":
+            row = layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="Opening", icon="EVENT_O")
+
+        row = layout.row(align=True)
         row.label(text="Align")
+        row = layout.row(align=True)
+        row.label(text="", icon="EVENT_SHIFT")
+        row.label(text="Align Exterior", icon="EVENT_X")
+        row = layout.row(align=True)
+        row.label(text="", icon="EVENT_SHIFT")
+        row.label(text="Align Centerline", icon="EVENT_C")
+        row = layout.row(align=True)
+        row.label(text="", icon="EVENT_SHIFT")
+        row.label(text="Align Interior", icon="EVENT_V")
+        row = layout.row(align=True)
+
+        row = layout.row(align=True)
+        row.label(text="", icon="EVENT_ALT")
+        row.label(text="Opening", icon="EVENT_O")
+
+
+class Hotkey(bpy.types.Operator):
+    bl_idname = "bim.hotkey"
+    bl_label = "Hotkey"
+    bl_options = {"REGISTER", "UNDO"}
+    hotkey: bpy.props.StringProperty()
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        self.props = context.scene.BIMTypeProperties
+        getattr(self, f"hotkey_{self.hotkey}")()
+        return {"FINISHED"}
+
+    def hotkey_S_C(self):
+        if self.props.ifc_class == "IfcWallType":
+            bpy.ops.bim.align_wall(align_type="CENTERLINE")
+        else:
+            bpy.ops.bim.align_product(align_type="CENTERLINE")
+
+    def hotkey_S_E(self):
+        if self.props.ifc_class == "IfcWallType":
+            bpy.ops.bim.join_wall(join_type="T")
+
+    def hotkey_S_V(self):
+        if self.props.ifc_class == "IfcWallType":
+            bpy.ops.bim.align_wall(align_type="INTERIOR")
+        else:
+            bpy.ops.bim.align_product(align_type="POSITIVE")
+
+    def hotkey_S_X(self):
+        if self.props.ifc_class == "IfcWallType":
+            bpy.ops.bim.align_wall(align_type="EXTERIOR")
+        else:
+            bpy.ops.bim.align_product(align_type="NEGATIVE")
+
+    def hotkey_S_O(self):
+        if self.props.ifc_class == "IfcWallType":
+            bpy.ops.bim.add_wall_opening()
+        elif self.props.ifc_class == "IfcSlabType":
+            bpy.ops.bim.add_slab_opening()
+
+    def hotkey_A_O(self):
+        bpy.ops.bim.toggle_opening_visibility()

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

@@ -4,8 +4,8 @@ from ifcopenshell.api.owner.data import Data
 from blenderbim.bim.ifc import IfcStore
 
 
-def draw_roles_ui(box, assigned_object_id, roles):
-    props = bpy.context.scene.BIMOwnerProperties
+def draw_roles_ui(box, assigned_object_id, roles, context):
+    props = context.scene.BIMOwnerProperties
     row = box.row(align=True)
     row.label(text="Roles")
     row.operator("bim.add_role", icon="ADD", text="").assigned_object_id = assigned_object_id
@@ -30,8 +30,8 @@ def draw_roles_ui(box, assigned_object_id, roles):
             row.operator("bim.remove_role", icon="X", text="").role_id = role_id
 
 
-def draw_addresses_ui(box, assigned_object_id, addresses, file):
-    props = bpy.context.scene.BIMOwnerProperties
+def draw_addresses_ui(box, assigned_object_id, addresses, file, context):
+    props = context.scene.BIMOwnerProperties
     row = box.row(align=True)
     row.label(text="Addresses")
     op = row.operator("bim.add_address", icon="LINK_BLEND", text="")
@@ -135,8 +135,8 @@ class BIM_PT_people(Panel):
                 row = box.row()
                 row.prop(blender_person, "suffix_titles")
 
-                draw_roles_ui(box, person_id, person["Roles"])
-                draw_addresses_ui(box, person_id, person["Addresses"], self.file)
+                draw_roles_ui(box, person_id, person["Roles"], context)
+                draw_addresses_ui(box, person_id, person["Addresses"], self.file, context)
             else:
                 row = self.layout.row(align=True)
                 name = person["Id"] if self.file.schema == "IFC2X3" else person["Identification"]
@@ -189,8 +189,8 @@ class BIM_PT_organisations(Panel):
                 row = box.row()
                 row.prop(blender_organisation, "description")
 
-                draw_roles_ui(box, organisation_id, organisation["Roles"])
-                draw_addresses_ui(box, organisation_id, organisation["Addresses"], self.file)
+                draw_roles_ui(box, organisation_id, organisation["Roles"], context)
+                draw_addresses_ui(box, organisation_id, organisation["Addresses"], self.file, context)
             else:
                 row = self.layout.row(align=True)
                 row.label(text=organisation["Name"])

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

@@ -0,0 +1,9 @@
+classes = ()
+
+
+def register():
+    pass
+
+
+def unregister():
+    pass

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

@@ -29,17 +29,17 @@ class CreateProject(bpy.types.Operator):
             return {"FINISHED"}
 
         IfcStore.file = ifcopenshell.api.run(
-            "project.create_file", **{"version": bpy.context.scene.BIMProperties.export_schema}
+            "project.create_file", **{"version": context.scene.BIMProperties.export_schema}
         )
         self.file = IfcStore.get_file()
 
         bpy.ops.bim.add_person()
         bpy.ops.bim.add_organisation()
 
-        project = bpy.data.objects.new("My Project", None)
-        site = bpy.data.objects.new("My Site", None)
-        building = bpy.data.objects.new("My Building", None)
-        building_storey = bpy.data.objects.new("Ground Floor", None)
+        project = bpy.data.objects.new(self.get_name("IfcProject", "My Project"), None)
+        site = bpy.data.objects.new(self.get_name("IfcSite", "My Site"), None)
+        building = bpy.data.objects.new(self.get_name("IfcBuilding", "My Building"), None)
+        building_storey = bpy.data.objects.new(self.get_name("IfcBuildingStorey", "My Storey"), None)
 
         bpy.ops.bim.assign_class(obj=project.name, ifc_class="IfcProject")
         bpy.ops.bim.assign_unit()
@@ -49,7 +49,7 @@ class CreateProject(bpy.types.Operator):
         bpy.ops.bim.add_subcontext(context="Plan")
         bpy.ops.bim.add_subcontext(context="Plan", subcontext="Annotation", target_view="PLAN_VIEW")
 
-        bpy.context.scene.BIMProperties.contexts = str(
+        context.scene.BIMProperties.contexts = str(
             ifcopenshell.util.representation.get_context(self.file, "Model", "Body", "MODEL_VIEW").id()
         )
 
@@ -62,6 +62,14 @@ class CreateProject(bpy.types.Operator):
 
         return {"FINISHED"}
 
+    def get_name(self, ifc_class, name):
+        if not bpy.data.objects.get(f"{ifc_class}/{name}"):
+            return name
+        i = 2
+        while bpy.data.objects.get(f"{ifc_class}/{name} {i}"):
+            i += 1
+        return f"{name} {i}"
+
     def rollback(self, data):
         IfcStore.file = None
 
@@ -89,7 +97,7 @@ class CreateProjectLibrary(bpy.types.Operator):
             return {"FINISHED"}
 
         IfcStore.file = ifcopenshell.api.run(
-            "project.create_file", **{"version": bpy.context.scene.BIMProperties.export_schema}
+            "project.create_file", **{"version": context.scene.BIMProperties.export_schema}
         )
         self.file = IfcStore.get_file()
 
@@ -318,14 +326,14 @@ class AppendLibraryElement(bpy.types.Operator):
             library=IfcStore.library_file,
             element=IfcStore.library_file.by_id(self.definition),
         )
-        self.import_type_from_ifc(element)
+        self.import_type_from_ifc(element, context)
         blenderbim.bim.handler.purge_module_data()
         return {"FINISHED"}
 
-    def import_type_from_ifc(self, element):
+    def import_type_from_ifc(self, element, context):
         self.file = IfcStore.get_file()
         logger = logging.getLogger("ImportIFC")
-        ifc_import_settings = import_ifc.IfcImportSettings.factory(bpy.context, IfcStore.path, logger)
+        ifc_import_settings = import_ifc.IfcImportSettings.factory(context, IfcStore.path, logger)
 
         type_collection = bpy.data.collections.get("Types")
         if not type_collection:

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

@@ -16,7 +16,7 @@ class TogglePsetExpansion(bpy.types.Operator):
     pset_id: bpy.props.IntProperty()
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         data = Data.psets if self.pset_id in Data.psets else Data.qtos
         data[self.pset_id]["is_expanded"] = not data[self.pset_id]["is_expanded"]
         return {"FINISHED"}
@@ -195,6 +195,7 @@ class EditPset(bpy.types.Operator):
                     "pset": self.file.by_id(pset_id),
                     "name": props.active_pset_name,
                     "properties": properties,
+                    "pset_template": blenderbim.bim.schema.ifc.psetqto.get_by_name(props.active_pset_name),
                 },
             )
         else:
@@ -294,7 +295,7 @@ class AddQto(bpy.types.Operator):
 
     def _execute(self, context):
         self.file = IfcStore.get_file()
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.PsetProperties
         ifcopenshell.api.run(
@@ -317,23 +318,23 @@ class GuessQuantity(bpy.types.Operator):
 
     def execute(self, context):
         self.qto_calculator = QtoCalculator()
-        obj = bpy.context.active_object
+        obj = context.active_object
         prop = obj.PsetProperties.properties.get(self.prop)
-        prop.float_value = self.guess_quantity(obj)
+        prop.float_value = self.guess_quantity(obj, context)
         return {"FINISHED"}
 
-    def guess_quantity(self, obj):
+    def guess_quantity(self, obj, context):
         quantity = self.qto_calculator.guess_quantity(self.prop, [p.name for p in obj.PsetProperties.properties], obj)
         if "area" in self.prop.lower():
-            if bpy.context.scene.BIMProperties.area_unit:
-                prefix, name = self.get_prefix_name(bpy.context.scene.BIMProperties.area_unit)
+            if context.scene.BIMProperties.area_unit:
+                prefix, name = self.get_prefix_name(context.scene.BIMProperties.area_unit)
                 quantity = ifcopenshell.util.unit.convert(quantity, None, "SQUARE_METRE", prefix, name)
         elif "volume" in self.prop.lower():
-            if bpy.context.scene.BIMProperties.volume_unit:
-                prefix, name = self.get_prefix_name(bpy.context.scene.BIMProperties.volume_unit)
+            if context.scene.BIMProperties.volume_unit:
+                prefix, name = self.get_prefix_name(context.scene.BIMProperties.volume_unit)
                 quantity = ifcopenshell.util.unit.convert(quantity, None, "CUBIC_METRE", prefix, name)
         else:
-            prefix, name = self.get_blender_prefix_name()
+            prefix, name = self.get_blender_prefix_name(context)
             quantity = ifcopenshell.util.unit.convert(quantity, None, "METRE", prefix, name)
         return round(quantity, 3)
 
@@ -342,13 +343,14 @@ class GuessQuantity(bpy.types.Operator):
             return value.split("/")
         return None, value
 
-    def get_blender_prefix_name(self):
-        if bpy.context.scene.unit_settings.system == "IMPERIAL":
-            if bpy.context.scene.unit_settings.length_unit == "INCHES":
+    def get_blender_prefix_name(self, context):
+        unit_settings = context.scene.unit_settings
+        if unit_settings.system == "IMPERIAL":
+            if unit_settings.length_unit == "INCHES":
                 return None, "inch"
-            elif bpy.context.scene.unit_settings.length_unit == "FEET":
+            elif unit_settings.length_unit == "FEET":
                 return None, "foot"
-        elif bpy.context.scene.unit_settings.system == "METRIC":
-            if bpy.context.scene.unit_settings.length_unit == "METERS":
+        elif unit_settings.system == "METRIC":
+            if unit_settings.length_unit == "METERS":
                 return None, "METRE"
-            return bpy.context.scene.unit_settings.length_unit[0 : -len("METERS")], "METRE"
+            return unit_settings.length_unit[0 : -len("METERS")], "METRE"

src/blenderbim/blenderbim/bim/module/pset/prop.py

@@ -1,7 +1,8 @@
 import bpy
+import blenderbim.bim.schema
 from blenderbim.bim.prop import Attribute
 from ifcopenshell.api.pset.data import Data
-import blenderbim.bim.schema
+from blenderbim.bim.ifc import IfcStore
 from bpy.types import PropertyGroup
 from bpy.props import (
     PointerProperty,
@@ -29,16 +30,17 @@ def purge():
 def getPsetNames(self, context):
     global psetnames
     obj = context.active_object
-    if "/" in obj.name:
-        ifc_class = obj.name.split("/")[0]
-        if ifc_class not in psetnames:
-            psets = blenderbim.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
-            psetnames[ifc_class] = [(p.Name, p.Name, "") for p in psets]
-        assigned_names = [
-            Data.psets[p]["Name"] for p in Data.products[obj.BIMObjectProperties.ifc_definition_id]["psets"]
-        ]
-        return [p for p in psetnames[ifc_class] if p[0] not in assigned_names]
-    return []
+    if not obj.BIMObjectProperties.ifc_definition_id:
+        return []
+    element = IfcStore.get_file().by_id(obj.BIMObjectProperties.ifc_definition_id)
+    ifc_class = element.is_a()
+    if ifc_class not in psetnames:
+        psets = blenderbim.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psetnames[ifc_class] = [(p.Name, p.Name, "") for p in psets]
+    assigned_names = [
+        Data.psets[p]["Name"] for p in Data.products[obj.BIMObjectProperties.ifc_definition_id]["psets"]
+    ]
+    return [p for p in psetnames[ifc_class] if p[0] not in assigned_names]
 
 
 def getMaterialPsetNames(self, context):

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

@@ -122,8 +122,8 @@ class BIM_PT_object_psets(Panel):
         op.obj = context.active_object.name
         op.obj_type = "Object"
 
-        for pset_id in Data.products[oprops.ifc_definition_id]["psets"]:
-            pset = Data.psets[pset_id]
+        psets = [(pset_id, Data.psets[pset_id]) for pset_id in Data.products[oprops.ifc_definition_id]["psets"]]
+        for pset_id, pset in sorted(psets, key = lambda v: v[1]["Name"]):
             draw_psetqto_ui(context, pset_id, pset, props, self.layout, "Object")
 
         # TODO reimplement. See #1222.
@@ -165,8 +165,8 @@ class BIM_PT_object_qtos(Panel):
         row.prop(props, "qto_name", text="")
         row.operator("bim.add_qto", icon="ADD", text="")
 
-        for qto_id in Data.products[oprops.ifc_definition_id]["qtos"]:
-            qto = Data.qtos[qto_id]
+        qtos = [(qto_id, Data.qtos[qto_id]) for qto_id in Data.products[oprops.ifc_definition_id]["qtos"]]
+        for qto_id, qto in sorted(qtos, key = lambda v: v[1]["Name"]):
             draw_psetqto_ui(context, qto_id, qto, props, self.layout, "Object")
 
 
@@ -207,6 +207,6 @@ class BIM_PT_material_psets(Panel):
         op.obj = context.active_object.active_material.name
         op.obj_type = "Material"
 
-        for pset_id in Data.products[oprops.ifc_definition_id]["psets"]:
-            pset = Data.psets[pset_id]
+        psets = [(pset_id, Data.psets[pset_id]) for pset_id in Data.products[oprops.ifc_definition_id]["psets"]]
+        for pset_id, pset in sorted(psets, key = lambda v: v[1]["Name"]):
             draw_psetqto_ui(context, pset_id, pset, props, self.layout, "Material")

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

@@ -1,6 +1,8 @@
 import bpy
 import ifcopenshell
 import ifcopenshell.api
+import blenderbim.bim.schema
+import blenderbim.bim.handler
 from blenderbim.bim.module.pset_template.prop import updatePsetTemplateFiles, updatePsetTemplates
 from ifcopenshell.api.pset_template.data import Data
 from blenderbim.bim.ifc import IfcStore
@@ -165,6 +167,8 @@ class SavePsetTemplateFile(bpy.types.Operator):
 
     def execute(self, context):
         IfcStore.pset_template_file.write(IfcStore.pset_template_path)
+        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.schema.reload()
         return {"FINISHED"}
 
 

src/blenderbim/blenderbim/bim/module/qto/helper.py

@@ -14,7 +14,7 @@ def calculate_volume(obj):
     return result
 
 
-def calculate_formwork_area(objs):
+def calculate_formwork_area(objs, context):
     """
     Formwork is defined as the surface area required to cover all exposed
     surfaces of one or more objects, excluding top surfaces (i.e. that have a
@@ -27,7 +27,7 @@ def calculate_formwork_area(objs):
         new_obj = obj.copy()
         new_obj.data = obj.data.copy()
         new_obj.animation_data_clear()
-        bpy.context.collection.objects.link(new_obj)
+        context.collection.objects.link(new_obj)
         copied_objs.append(new_obj)
 
     context_override = {}
@@ -53,7 +53,7 @@ def calculate_formwork_area(objs):
     else:
         modifier.octree_depth = 5
 
-    mesh = copied_objs[0].evaluated_get(bpy.context.evaluated_depsgraph_get()).to_mesh()
+    mesh = copied_objs[0].evaluated_get(context.evaluated_depsgraph_get()).to_mesh()
     for polygon in mesh.polygons:
         if polygon.normal.z > 0.5:
             continue

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

@@ -14,13 +14,13 @@ class CalculateEdgeLengths(bpy.types.Operator):
 
     def execute(self, context):
         result = 0
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if not obj.data or not obj.data.edges:
                 continue
             for edge in obj.data.edges:
                 if edge.select:
                     result += (obj.data.vertices[edge.vertices[1]].co - obj.data.vertices[edge.vertices[0]].co).length
-        bpy.context.scene.BIMQtoProperties.qto_result = str(round(result, 3))
+        context.scene.BIMQtoProperties.qto_result = str(round(result, 3))
         return {"FINISHED"}
 
 
@@ -31,13 +31,13 @@ class CalculateFaceAreas(bpy.types.Operator):
 
     def execute(self, context):
         result = 0
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if not obj.data or not obj.data.polygons:
                 continue
             for polygon in obj.data.polygons:
                 if polygon.select:
                     result += polygon.area
-        bpy.context.scene.BIMQtoProperties.qto_result = str(round(result, 3))
+        context.scene.BIMQtoProperties.qto_result = str(round(result, 3))
         return {"FINISHED"}
 
 
@@ -48,14 +48,14 @@ class CalculateObjectVolumes(bpy.types.Operator):
 
     def execute(self, context):
         result = 0
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if not obj.data or not isinstance(obj.data, bpy.types.Mesh):
                 continue
             bm = bmesh.new()
             bm.from_mesh(obj.data)
             result += bm.calc_volume()
             bm.free()
-        bpy.context.scene.BIMQtoProperties.qto_result = str(round(result, 3))
+        context.scene.BIMQtoProperties.qto_result = str(round(result, 3))
         return {"FINISHED"}
 
 
@@ -65,16 +65,16 @@ class ExecuteQtoMethod(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        props = bpy.context.scene.BIMQtoProperties
+        props = context.scene.BIMQtoProperties
         result = 0
         if props.qto_methods == "HEIGHT":
-            for obj in bpy.context.selected_objects:
+            for obj in context.selected_objects:
                 result += helper.calculate_height(obj)
         elif props.qto_methods == "VOLUME":
-            for obj in bpy.context.selected_objects:
+            for obj in context.selected_objects:
                 result += helper.calculate_volume(obj)
         elif props.qto_methods == "FORMWORK":
-            result = helper.calculate_formwork_area(bpy.context.selected_objects)
+            result = helper.calculate_formwork_area(context.selected_objects, context)
         props.qto_result = str(round(result, 3))
         return {"FINISHED"}
 
@@ -88,9 +88,9 @@ class QuantifyObjects(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        props = bpy.context.scene.BIMQtoProperties
+        props = context.scene.BIMQtoProperties
         self.file = IfcStore.get_file()
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             result = 0
@@ -99,7 +99,7 @@ class QuantifyObjects(bpy.types.Operator):
             elif props.qto_methods == "VOLUME":
                 result = helper.calculate_volume(obj)
             elif props.qto_methods == "FORMWORK":
-                result = helper.calculate_formwork_area([obj])
+                result = helper.calculate_formwork_area([obj], context)
             if not result:
                 continue
             result = round(result, 3)

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

@@ -230,7 +230,7 @@ class AssignResource(bpy.types.Operator):
 
     def _execute(self, context):
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         for related_object in related_objects:
             self.file = IfcStore.get_file()
@@ -253,7 +253,7 @@ class UnassignResource(bpy.types.Operator):
 
     def execute(self, context):
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         for related_object in related_objects:
             self.file = IfcStore.get_file()

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

@@ -13,7 +13,8 @@ class BIM_PT_resources(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         self.props = context.scene.BIMResourceProperties

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

@@ -15,10 +15,10 @@ class EnableReassignClass(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         self.file = IfcStore.get_file()
         ifc_class = obj.name.split("/")[0]
-        bpy.context.active_object.BIMObjectProperties.is_reassigning_class = True
+        context.active_object.BIMObjectProperties.is_reassigning_class = True
         ifc_products = [
             "IfcElement",
             "IfcElementType",
@@ -31,11 +31,11 @@ class EnableReassignClass(bpy.types.Operator):
         ]
         for ifc_product in ifc_products:
             if ifcopenshell.util.schema.is_a(IfcStore.get_schema().declaration_by_name(ifc_class), ifc_product):
-                bpy.context.scene.BIMRootProperties.ifc_product = ifc_product
+                context.scene.BIMRootProperties.ifc_product = ifc_product
         element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
-        bpy.context.scene.BIMRootProperties.ifc_class = element.is_a()
+        context.scene.BIMRootProperties.ifc_class = element.is_a()
         if hasattr(element, "PredefinedType") and element.PredefinedType:
-            bpy.context.scene.BIMRootProperties.ifc_predefined_type = element.PredefinedType
+            context.scene.BIMRootProperties.ifc_predefined_type = element.PredefinedType
         return {"FINISHED"}
 
 
@@ -45,7 +45,7 @@ class DisableReassignClass(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.active_object.BIMObjectProperties.is_reassigning_class = False
+        context.active_object.BIMObjectProperties.is_reassigning_class = False
         return {"FINISHED"}
 
 
@@ -59,18 +59,18 @@ class ReassignClass(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        objects = [bpy.data.objects.get(self.obj)] if self.obj else bpy.context.selected_objects
+        objects = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
         self.file = IfcStore.get_file()
-        predefined_type = bpy.context.scene.BIMRootProperties.ifc_predefined_type
+        predefined_type = context.scene.BIMRootProperties.ifc_predefined_type
         if predefined_type == "USERDEFINED":
-            predefined_type = bpy.context.scene.BIMRootProperties.ifc_userdefined_type
+            predefined_type = context.scene.BIMRootProperties.ifc_userdefined_type
         for obj in objects:
             product = ifcopenshell.api.run(
                 "root.reassign_class",
                 self.file,
                 **{
                     "product": self.file.by_id(obj.BIMObjectProperties.ifc_definition_id),
-                    "ifc_class": bpy.context.scene.BIMRootProperties.ifc_class,
+                    "ifc_class": context.scene.BIMRootProperties.ifc_class,
                     "predefined_type": predefined_type,
                 },
             )
@@ -96,11 +96,11 @@ class AssignClass(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        objects = [bpy.data.objects.get(self.obj)] if self.obj else bpy.context.selected_objects
+        objects = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
         self.file = IfcStore.get_file()
         self.declaration = IfcStore.get_schema().declaration_by_name(self.ifc_class)
         if self.predefined_type == "USERDEFINED":
-            self.predefined_type = self.ifc_userdefined_type
+            self.predefined_type = self.userdefined_type
         elif self.predefined_type == "":
             predefined_type = None
         for obj in objects:
@@ -128,20 +128,22 @@ class AssignClass(bpy.types.Operator):
             )
 
         if product.is_a("IfcElementType"):
-            self.place_in_types_collection(obj)
+            self.place_in_types_collection(obj, context)
+        elif product.is_a("IfcOpeningElement"):
+            self.place_in_openings_collection(obj, context)
         elif (
             product.is_a("IfcSpatialElement")
             or product.is_a("IfcSpatialStructureElement")
             or product.is_a("IfcProject")
             or product.is_a("IfcContext")
         ):
-            self.place_in_spatial_collection(obj)
+            self.place_in_spatial_collection(obj, context)
         else:
             self.assign_potential_spatial_container(obj)
         context.view_layer.objects.active = obj
 
-    def place_in_types_collection(self, obj):
-        for project in [c for c in bpy.context.view_layer.layer_collection.children if "IfcProject" in c.name]:
+    def place_in_types_collection(self, obj, context):
+        for project in [c for c in context.view_layer.layer_collection.children if "IfcProject" in c.name]:
             if not [c for c in project.children if "Types" in c.name]:
                 types = bpy.data.collections.new("Types")
                 project.collection.children.link(types)
@@ -152,7 +154,19 @@ class AssignClass(bpy.types.Operator):
                 break
             break
 
-    def place_in_spatial_collection(self, obj):
+    def place_in_openings_collection(self, obj, context):
+        for project in [c for c in context.view_layer.layer_collection.children if "IfcProject" in c.name]:
+            if not [c for c in project.children if "IfcOpeningElements" in c.name]:
+                opening_elements = bpy.data.collections.new("IfcOpeningElements")
+                project.collection.children.link(opening_elements)
+            for collection in [c for c in project.children if "IfcOpeningElements" in c.name]:
+                for user_collection in obj.users_collection:
+                    user_collection.objects.unlink(obj)
+                collection.collection.objects.link(obj)
+                break
+            break
+
+    def place_in_spatial_collection(self, obj, context):
         for collection in obj.users_collection:
             if collection.name == obj.name:
                 return
@@ -167,7 +181,7 @@ class AssignClass(bpy.types.Operator):
             parent_collection.children.link(collection)
             bpy.ops.bim.assign_object(related_object=obj.name, relating_object=parent_collection.name)
         else:
-            bpy.context.scene.collection.children.link(collection)
+            context.scene.collection.children.link(collection)
 
     def assign_potential_spatial_container(self, obj):
         for collection in obj.users_collection:
@@ -195,7 +209,7 @@ class UnassignClass(bpy.types.Operator):
         if self.obj:
             objects = [bpy.data.objects.get(self.obj)]
         else:
-            objects = bpy.context.selected_objects
+            objects = context.selected_objects
         for obj in objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
@@ -238,7 +252,7 @@ class UnlinkObject(bpy.types.Operator):
         if self.obj:
             objects = [bpy.data.objects.get(self.obj)]
         else:
-            objects = bpy.context.selected_objects
+            objects = context.selected_objects
         for obj in objects:
             if obj.BIMObjectProperties.ifc_definition_id:
                 IfcStore.unlink_element(obj=obj)
@@ -261,17 +275,33 @@ class CopyClass(bpy.types.Operator):
         if self.obj:
             objects = [bpy.data.objects.get(self.obj)]
         else:
-            objects = bpy.context.selected_objects
+            objects = context.selected_objects
         for obj in objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
-            result = ifcopenshell.api.run(
-                "root.copy_class", self.file, **{"product": self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)}
-            )
+            old_element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
+            result = ifcopenshell.api.run("root.copy_class", self.file, **{"product": old_element})
             IfcStore.link_element(result, obj)
             relating_type = ifcopenshell.util.element.get_type(result)
             if relating_type and relating_type.RepresentationMaps:
                 bpy.ops.bim.assign_type(relating_type=relating_type.id(), related_object=obj.name)
             else:
                 bpy.ops.bim.add_representation(obj=obj.name)
+            if result.is_a("IfcSpatialElement") or element.is_a("IfcSpatialStructureElement"):
+                self.place_in_spatial_collection(old_element, obj)
         return {"FINISHED"}
+
+    def place_in_spatial_collection(self, old_element, obj):
+        aggregate = ifcopenshell.util.element.get_aggregate(old_element)
+        if not aggregate:
+            return
+        container_obj = IfcStore.get_element(aggregate.id())
+        for collection in obj.users_collection:
+            collection.objects.unlink(obj)
+            if "Ifc" in collection.name:
+                parent_collection = collection
+        for collection in container_obj.users_collection:
+            if collection.name == container_obj.name:
+                new = bpy.data.collections.new(obj.name)
+                new.objects.link(obj)
+                collection.children.link(new)

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

@@ -30,7 +30,7 @@ class BIM_PT_class(Panel):
                 row = self.layout.row(align=True)
                 row.operator("bim.reassign_class", icon="CHECKMARK")
                 row.operator("bim.disable_reassign_class", icon="X", text="")
-                self.draw_class_dropdowns()
+                self.draw_class_dropdowns(context)
             else:
                 data = Data.products[props.ifc_definition_id]
                 name = data["type"]
@@ -40,6 +40,7 @@ class BIM_PT_class(Panel):
                     name += "[{}]".format(data["PredefinedType"])
                 row = self.layout.row(align=True)
                 row.label(text=name)
+                row.operator("bim.select_ifc_class", text="", icon="RESTRICT_SELECT_OFF").ifc_class = data["type"]
                 row.operator("bim.copy_class", icon="DUPLICATE", text="")
                 row.operator("bim.unlink_object", icon="UNLINKED", text="")
                 if IfcStore.get_file().by_id(props.ifc_definition_id).is_a("IfcRoot"):
@@ -49,15 +50,15 @@ class BIM_PT_class(Panel):
                 else:
                     row.operator("bim.unassign_class", icon="X", text="").obj = context.active_object.name
         else:
-            self.draw_class_dropdowns()
+            self.draw_class_dropdowns(context)
             row = self.layout.row(align=True)
             op = row.operator("bim.assign_class")
-            op.ifc_class = bpy.context.scene.BIMRootProperties.ifc_class
-            op.predefined_type = bpy.context.scene.BIMRootProperties.ifc_predefined_type
-            op.userdefined_type = bpy.context.scene.BIMRootProperties.ifc_userdefined_type
+            op.ifc_class = context.scene.BIMRootProperties.ifc_class
+            op.predefined_type = context.scene.BIMRootProperties.ifc_predefined_type
+            op.userdefined_type = context.scene.BIMRootProperties.ifc_userdefined_type
 
-    def draw_class_dropdowns(self):
-        props = bpy.context.scene.BIMRootProperties
+    def draw_class_dropdowns(self, context):
+        props = context.scene.BIMRootProperties
         row = self.layout.row()
         row.prop(props, "ifc_product")
         row = self.layout.row()
@@ -69,4 +70,4 @@ class BIM_PT_class(Panel):
             row = self.layout.row()
             row.prop(props, "ifc_userdefined_type")
         row = self.layout.row()
-        row.prop(bpy.context.scene.BIMProperties, "contexts")
+        row.prop(context.scene.BIMProperties, "contexts")

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

@@ -22,23 +22,25 @@ colour_list = [
 ]
 
 
-def does_keyword_exist(pattern, string):
+def does_keyword_exist(pattern, string, context):
     string = str(string)
+    props = context.scene.BIMSearchProperties
     if (
-        bpy.context.scene.BIMSearchProperties.should_use_regex
-        and bpy.context.scene.BIMSearchProperties.should_ignorecase
+        props.should_use_regex
+        and props.should_ignorecase
         and re.search(pattern, string, flags=re.IGNORECASE)
     ):
         return True
-    elif bpy.context.scene.BIMSearchProperties.should_use_regex and re.search(pattern, string):
+    elif props.should_use_regex and re.search(pattern, string):
         return True
-    elif bpy.context.scene.BIMSearchProperties.should_ignorecase and string.lower() == pattern.lower():
+    elif props.should_ignorecase and string.lower() == pattern.lower():
         return True
     elif string == pattern:
         return True
 
 
 class SelectGlobalId(bpy.types.Operator):
+    """Click to select the objects that match with the given Global ID"""
     bl_idname = "bim.select_global_id"
     bl_label = "Select GlobalId"
     bl_options = {"REGISTER", "UNDO"}
@@ -59,23 +61,25 @@ class SelectGlobalId(bpy.types.Operator):
 
 
 class SelectIfcClass(bpy.types.Operator):
+    """Click to select all objects that match with the given IFC class"""
     bl_idname = "bim.select_ifc_class"
     bl_label = "Select IFC Class"
     bl_options = {"REGISTER", "UNDO"}
+    ifc_class: bpy.props.StringProperty()
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        props = context.scene.BIMSearchProperties
         for obj in context.visible_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
-            if does_keyword_exist(props.ifc_class, element.is_a()):
+            if does_keyword_exist(self.ifc_class, element.is_a(), context):
                 obj.select_set(True)
         return {"FINISHED"}
 
 
 class SelectAttribute(bpy.types.Operator):
+    """Click to select all objects that match with the given Attribute Name and Value"""
     bl_idname = "bim.select_attribute"
     bl_label = "Select Attribute"
     bl_options = {"REGISTER", "UNDO"}
@@ -94,12 +98,13 @@ class SelectAttribute(bpy.types.Operator):
                 value = next((v for k, v in data.items() if k.lower() == attribute_name.lower()), None)
             else:
                 value = getattr(element, attribute_name, None)
-            if does_keyword_exist(pattern, value):
+            if does_keyword_exist(pattern, value, context):
                 obj.select_set(True)
         return {"FINISHED"}
 
 
 class SelectPset(bpy.types.Operator):
+    """Click to select all objects that match with the given Pset Name, Properties Name and Value"""
     bl_idname = "bim.select_pset"
     bl_label = "Select Pset"
     bl_options = {"REGISTER", "UNDO"}
@@ -126,19 +131,20 @@ class SelectPset(bpy.types.Operator):
             else:
                 props = props or psets.get(search_pset_name, {})
                 value = props.get(search_prop_name, None)
-            if does_keyword_exist(pattern, value):
+            if does_keyword_exist(pattern, value, context):
                 obj.select_set(True)
         return {"FINISHED"}
 
 
 class ColourByAttribute(bpy.types.Operator):
+    """Click to colour different objects according to given Attribute Name"""
     bl_idname = "bim.colour_by_attribute"
     bl_label = "Colour by Attribute"
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
         IfcStore.begin_transaction(self)
-        self.store_state()
+        self.store_state(context)
         result = self._execute(context)
         IfcStore.add_transaction_operation(self)
         IfcStore.end_transaction(self)
@@ -161,13 +167,13 @@ class ColourByAttribute(bpy.types.Operator):
             if value not in values:
                 values[value] = next(colours)
             obj.color = values[value]
-        areas = [a for a in bpy.context.screen.areas if a.type == "VIEW_3D"]
+        areas = [a for a in context.screen.areas if a.type == "VIEW_3D"]
         if areas:
             areas[0].spaces[0].shading.color_type = "OBJECT"
         return {"FINISHED"}
 
-    def store_state(self):
-        areas = [a for a in bpy.context.screen.areas if a.type == "VIEW_3D"]
+    def store_state(self, context):
+        areas = [a for a in context.screen.areas if a.type == "VIEW_3D"]
         if areas:
             self.transaction_data = {"area": areas[0], "color_type": areas[0].spaces[0].shading.color_type}
 
@@ -181,13 +187,14 @@ class ColourByAttribute(bpy.types.Operator):
 
 
 class ColourByPset(bpy.types.Operator):
+    """Click to colour different objects according to given Prop Name"""
     bl_idname = "bim.colour_by_pset"
     bl_label = "Colour by Pset"
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
         IfcStore.begin_transaction(self)
-        self.store_state()
+        self.store_state(context)
         result = self._execute(context)
         IfcStore.add_transaction_operation(self)
         IfcStore.end_transaction(self)
@@ -218,13 +225,13 @@ class ColourByPset(bpy.types.Operator):
             if value not in values:
                 values[value] = next(colours)
             obj.color = values[value]
-        areas = [a for a in bpy.context.screen.areas if a.type == "VIEW_3D"]
+        areas = [a for a in context.screen.areas if a.type == "VIEW_3D"]
         if areas:
             areas[0].spaces[0].shading.color_type = "OBJECT"
         return {"FINISHED"}
 
-    def store_state(self):
-        areas = [a for a in bpy.context.screen.areas if a.type == "VIEW_3D"]
+    def store_state(self, context):
+        areas = [a for a in context.screen.areas if a.type == "VIEW_3D"]
         if areas:
             self.transaction_data = {"area": areas[0], "color_type": areas[0].spaces[0].shading.color_type}
 
@@ -238,13 +245,14 @@ class ColourByPset(bpy.types.Operator):
 
 
 class ColourByClass(bpy.types.Operator):
+    """Click to colour different objects according to their IFC Classes"""
     bl_idname = "bim.colour_by_class"
     bl_label = "Colour by Class"
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
         IfcStore.begin_transaction(self)
-        self.store_state()
+        self.store_state(context)
         result = self._execute(context)
         IfcStore.add_transaction_operation(self)
         IfcStore.end_transaction(self)
@@ -254,7 +262,7 @@ class ColourByClass(bpy.types.Operator):
         self.file = IfcStore.get_file()
         colours = cycle(colour_list)
         ifc_classes = {}
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
                 continue
             element = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
@@ -262,13 +270,13 @@ class ColourByClass(bpy.types.Operator):
             if ifc_class not in ifc_classes:
                 ifc_classes[ifc_class] = next(colours)
             obj.color = ifc_classes[ifc_class]
-        areas = [a for a in bpy.context.screen.areas if a.type == "VIEW_3D"]
+        areas = [a for a in context.screen.areas if a.type == "VIEW_3D"]
         if areas:
             areas[0].spaces[0].shading.color_type = "OBJECT"
         return {"FINISHED"}
 
-    def store_state(self):
-        areas = [a for a in bpy.context.screen.areas if a.type == "VIEW_3D"]
+    def store_state(self, context):
+        areas = [a for a in context.screen.areas if a.type == "VIEW_3D"]
         if areas:
             self.transaction_data = {"area": areas[0], "color_type": areas[0].spaces[0].shading.color_type}
 
@@ -282,10 +290,11 @@ class ColourByClass(bpy.types.Operator):
 
 
 class ResetObjectColours(bpy.types.Operator):
+    """Reset the colour of selected objects"""
     bl_idname = "bim.reset_object_colours"
     bl_label = "Reset Colours"
 
     def execute(self, context):
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             obj.color = (1, 1, 1, 1)
         return {"FINISHED"}

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

@@ -28,11 +28,11 @@ class BIM_PT_search(Panel):
 
         row = self.layout.row(align=True)
         row.prop(props, "global_id", text="", icon="TRACKER")
-        row.operator("bim.select_global_id", text="", icon="VIEWZOOM")
+        row.operator("bim.select_global_id", text="", icon="VIEWZOOM").global_id = props.global_id
 
         row = self.layout.row(align=True)
         row.prop(props, "ifc_class", text="", icon="OBJECT_DATA")
-        row.operator("bim.select_ifc_class", text="", icon="VIEWZOOM")
+        row.operator("bim.select_ifc_class", text="", icon="VIEWZOOM").ifc_class = props.ifc_class
         row.operator("bim.colour_by_class", text="", icon="BRUSH_DATA")
 
         row = self.layout.row(align=True)

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

@@ -753,7 +753,7 @@ class AssignProduct(bpy.types.Operator):
 
     def _execute(self, context):
         relating_products = (
-            [bpy.data.objects.get(self.relating_product)] if self.relating_product else bpy.context.selected_objects
+            [bpy.data.objects.get(self.relating_product)] if self.relating_product else context.selected_objects
         )
         for relating_product in relating_products:
             self.file = IfcStore.get_file()
@@ -779,7 +779,7 @@ class UnassignProduct(bpy.types.Operator):
 
     def _execute(self, context):
         relating_products = (
-            [bpy.data.objects.get(self.relating_product)] if self.relating_product else bpy.context.selected_objects
+            [bpy.data.objects.get(self.relating_product)] if self.relating_product else context.selected_objects
         )
         for relating_product in relating_products:
             self.file = IfcStore.get_file()
@@ -805,7 +805,7 @@ class AssignProcess(bpy.types.Operator):
 
     def _execute(self, context):
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         for related_object in related_objects:
             self.file = IfcStore.get_file()
@@ -831,7 +831,7 @@ class UnassignProcess(bpy.types.Operator):
 
     def _execute(self, context):
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         for related_object in related_objects:
             self.file = IfcStore.get_file()
@@ -864,10 +864,10 @@ class GenerateGanttChart(bpy.types.Operator):
         }
         for task_id in Data.work_schedules[self.work_schedule]["RelatedObjects"]:
             self.create_new_task_json(task_id)
-        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:
+        with open(os.path.join(context.scene.BIMProperties.data_dir, "gantt", "index.html"), "w") as f:
+            with open(os.path.join(context.scene.BIMProperties.data_dir, "gantt", "index.mustache"), "r") as t:
                 f.write(pystache.render(t.read(), {"json_data": json.dumps(self.json)}))
-        webbrowser.open("file://" + os.path.join(bpy.context.scene.BIMProperties.data_dir, "gantt", "index.html"))
+        webbrowser.open("file://" + os.path.join(context.scene.BIMProperties.data_dir, "gantt", "index.html"))
         return {"FINISHED"}
 
     def create_new_task_json(self, task_id):
@@ -1568,7 +1568,7 @@ class SelectTaskRelatedProducts(bpy.types.Operator):
         related_products = ifcopenshell.api.run(
             "sequence.get_related_products", self.file, **{"related_object": self.file.by_id(self.task)}
         )
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
             obj.select_set(False)
             if obj.BIMObjectProperties.ifc_definition_id in related_products:
                 obj.select_set(True)
@@ -1644,7 +1644,7 @@ class VisualiseWorkScheduleDateRange(bpy.types.Operator):
         self.finish = parser.parse(self.props.visualisation_finish, dayfirst=True, fuzzy=True)
         self.duration = self.finish - self.start
         self.start_frame = 1
-        self.total_frames = self.calculate_total_frames()
+        self.total_frames = self.calculate_total_frames(context)
         self.preprocess_tasks()
         for obj in bpy.data.objects:
             if not obj.BIMObjectProperties.ifc_definition_id:
@@ -1742,7 +1742,7 @@ class VisualiseWorkScheduleDateRange(bpy.types.Operator):
         obj.keyframe_insert(data_path="color", frame=product_frame["COMPLETED"])
         obj.keyframe_insert(data_path="hide_viewport", frame=product_frame["COMPLETED"])
 
-    def calculate_total_frames(self):
+    def calculate_total_frames(self, context):
         if self.props.speed_types == "FRAME_SPEED":
             return self.calculate_using_frames(
                 self.start,
@@ -1754,7 +1754,7 @@ class VisualiseWorkScheduleDateRange(bpy.types.Operator):
             return self.calculate_using_duration(
                 self.start,
                 self.finish,
-                bpy.context.scene.render.fps,
+                context.scene.render.fps,
                 isodate.parse_duration(self.props.speed_animation_duration),
                 isodate.parse_duration(self.props.speed_real_duration),
             )
@@ -1762,7 +1762,7 @@ class VisualiseWorkScheduleDateRange(bpy.types.Operator):
             return self.calculate_using_multiplier(
                 self.start,
                 self.finish,
-                bpy.context.scene.render.fps,
+                context.scene.render.fps,
                 self.props.speed_multiplier,
             )
 

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

@@ -17,7 +17,8 @@ class BIM_PT_work_plans(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         if not Data.is_loaded:
@@ -88,7 +89,8 @@ class BIM_PT_work_schedules(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         self.props = context.scene.BIMWorkScheduleProperties
@@ -429,7 +431,8 @@ class BIM_PT_work_calendars(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         if not Data.is_loaded:

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

@@ -17,9 +17,12 @@ class AssignContainer(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
+        # The active object pointer is lost when the object is unlinked from all collections in the view layer
+        # We need to store it first, then restore it at the end
+        active_object = context.active_object
         self.file = IfcStore.get_file()
         related_elements = (
-            [bpy.data.objects.get(self.related_element)] if self.related_element else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_element)] if self.related_element else context.selected_objects
         )
         sprops = context.scene.BIMSpatialProperties
         relating_structure = (
@@ -49,7 +52,7 @@ class AssignContainer(bpy.types.Operator):
                 relating_collection = bpy.data.collections.get(relating_structure_obj.name)
 
             if aggregate_collection:
-                self.remove_collection(bpy.context.scene.collection, aggregate_collection)
+                self.remove_collection(context.scene.collection, aggregate_collection)
                 for collection in bpy.data.collections:
                     self.remove_collection(collection, aggregate_collection)
                 relating_collection.children.link(aggregate_collection)
@@ -57,6 +60,8 @@ class AssignContainer(bpy.types.Operator):
                 for collection in related_element.users_collection:
                     collection.objects.unlink(related_element)
                 relating_collection.objects.link(related_element)
+        # Restore the active object :
+        context.view_layer.objects.active = active_object
         return {"FINISHED"}
 
     def remove_collection(self, parent, child):
@@ -72,7 +77,7 @@ class EnableEditingContainer(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.active_object.BIMObjectSpatialProperties.is_editing = True
+        context.active_object.BIMObjectSpatialProperties.is_editing = True
         getSpatialContainers(self, context)
         return {"FINISHED"}
 
@@ -95,7 +100,7 @@ class DisableEditingContainer(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         obj.BIMObjectSpatialProperties.is_editing = False
         return {"FINISHED"}
 
@@ -110,7 +115,7 @@ class RemoveContainer(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         oprops = obj.BIMObjectProperties
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
@@ -120,14 +125,14 @@ class RemoveContainer(bpy.types.Operator):
 
         aggregate_collection = bpy.data.collections.get(obj.name)
         if aggregate_collection:
-            self.remove_collection(bpy.context.scene.collection, aggregate_collection)
+            self.remove_collection(context.scene.collection, aggregate_collection)
             for collection in bpy.data.collections:
                 self.remove_collection(collection, spatial_collection)
-            bpy.context.scene.collection.children.link(aggregate_collection)
+            context.scene.collection.children.link(aggregate_collection)
         else:
             for collection in obj.users_collection:
                 collection.objects.unlink(obj)
-            bpy.context.scene.collection.objects.link(obj)
+            context.scene.collection.objects.link(obj)
         return {"FINISHED"}
 
     def remove_collection(self, parent, child):
@@ -148,7 +153,7 @@ class CopyToContainer(bpy.types.Operator):
 
     def _execute(self, context):
         self.file = IfcStore.get_file()
-        objects = [bpy.data.objects.get(self.obj)] if self.obj else bpy.context.selected_objects
+        objects = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
         sprops = context.scene.BIMSpatialProperties
         container_ids = [c.ifc_definition_id for c in sprops.spatial_elements if c.is_selected]
         for obj in objects:

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

@@ -20,7 +20,7 @@ class AddStructuralMemberConnection(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.BIMStructuralProperties
         file = IfcStore.get_file()
@@ -46,7 +46,7 @@ class EnableEditingStructuralConnectionCondition(bpy.types.Operator):
     connects_structural_member: bpy.props.IntProperty()
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.BIMStructuralProperties
         applied_condition_id = Data.connects_structural_members[self.connects_structural_member]["AppliedCondition"]
@@ -60,7 +60,7 @@ class DisableEditingStructuralConnectionCondition(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         props = obj.BIMStructuralProperties
         props.active_connects_structural_member = 0
         return {"FINISHED"}
@@ -423,7 +423,7 @@ class EnableEditingStructuralItemAxis(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.BIMStructuralProperties
 
@@ -463,7 +463,7 @@ class DisableEditingStructuralItemAxis(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         props = obj.BIMStructuralProperties
         props.is_editing_axis = False
         if props.axis_empty:
@@ -479,7 +479,7 @@ class EditStructuralItemAxis(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.BIMStructuralProperties
         relative_matrix = props.axis_empty.matrix_world @ obj.matrix_world.inverted()
@@ -501,7 +501,7 @@ class EnableEditingStructuralConnectionCS(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.BIMStructuralProperties
 
@@ -553,7 +553,7 @@ class DisableEditingStructuralConnectionCS(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         props = obj.BIMStructuralProperties
         props.is_editing_connection_cs = False
         if props.ccs_empty:
@@ -570,7 +570,7 @@ class EditStructuralConnectionCS(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.context.active_object
+        obj = context.active_object
         oprops = obj.BIMObjectProperties
         props = obj.BIMStructuralProperties
         relative_matrix = props.ccs_empty.matrix_world @ obj.matrix_world.inverted()

src/blenderbim/blenderbim/bim/module/structural/prop.py

@@ -31,7 +31,7 @@ def getApplicableStructuralLoadTypes(self, context):
     element_classes = set(
         [
             ifc_file.by_id(o.BIMObjectProperties.ifc_definition_id).is_a()
-            for o in bpy.context.selected_objects
+            for o in context.selected_objects
             if o.BIMObjectProperties.ifc_definition_id
         ]
     )

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

@@ -261,7 +261,8 @@ class BIM_PT_structural_analysis_models(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         if not Data.is_loaded:
@@ -345,7 +346,8 @@ class BIM_PT_structural_load_cases(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         self.props = context.scene.BIMStructuralProperties
@@ -449,7 +451,8 @@ class BIM_PT_structural_loads(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         if not Data.is_loaded:
@@ -516,7 +519,8 @@ class BIM_PT_boundary_conditions(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"
 
     def draw(self, context):
         if not Data.is_loaded:

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

@@ -32,7 +32,7 @@ class UpdateStyleColours(bpy.types.Operator):
 
     def _execute(self, context):
         self.file = IfcStore.get_file()
-        material = bpy.data.materials.get(self.material) if self.material else bpy.context.active_object.active_material
+        material = bpy.data.materials.get(self.material) if self.material else context.active_object.active_material
         settings = get_colour_settings(material)
         settings["style"] = self.file.by_id(material.BIMMaterialProperties.ifc_style_id)
         ifcopenshell.api.run("style.edit_style_colours", self.file, **settings)
@@ -50,7 +50,7 @@ class RemoveStyle(bpy.types.Operator):
 
     def _execute(self, context):
         self.file = IfcStore.get_file()
-        material = bpy.data.materials.get(self.material) if self.material else bpy.context.active_object.active_material
+        material = bpy.data.materials.get(self.material) if self.material else context.active_object.active_material
         ifcopenshell.api.run(
             "style.remove_style", self.file, style=self.file.by_id(material.BIMMaterialProperties.ifc_style_id)
         )
@@ -69,12 +69,12 @@ class AddStyle(bpy.types.Operator):
 
     def _execute(self, context):
         self.file = IfcStore.get_file()
-        material = bpy.data.materials.get(self.material) if self.material else bpy.context.active_object.active_material
+        material = bpy.data.materials.get(self.material) if self.material else context.active_object.active_material
         settings = get_colour_settings(material)
         settings["name"] = material.name
         settings["external_definition"] = None  # TODO: Implement. See #1222
         style = ifcopenshell.api.run("style.add_style", self.file, **settings)
-        material.BIMMaterialProperties.ifc_style_id = style.id()
+        IfcStore.link_element(style, material)
         if material.BIMObjectProperties.ifc_definition_id:
             context = ifcopenshell.util.representation.get_context(self.file, "Model", "Body", "MODEL_VIEW")
             if context:
@@ -108,7 +108,7 @@ class EnableEditingStyle(bpy.types.Operator):
     material: bpy.props.StringProperty()
 
     def execute(self, context):
-        material = bpy.data.materials.get(self.material) if self.material else bpy.context.active_object.active_material
+        material = bpy.data.materials.get(self.material) if self.material else context.active_object.active_material
         props = material.BIMStyleProperties
         while len(props.attributes) > 0:
             props.attributes.remove(0)
@@ -126,7 +126,7 @@ class DisableEditingStyle(bpy.types.Operator):
     material: bpy.props.StringProperty()
 
     def execute(self, context):
-        material = bpy.data.materials.get(self.material) if self.material else bpy.context.active_object.active_material
+        material = bpy.data.materials.get(self.material) if self.material else context.active_object.active_material
         props = material.BIMStyleProperties
         props.is_editing_attributes = False
         return {"FINISHED"}
@@ -141,7 +141,7 @@ class EditStyle(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        material = bpy.context.active_object.active_material
+        material = context.active_object.active_material
         props = material.BIMStyleProperties
         attributes = blenderbim.bim.helper.export_attributes(props.attributes)
         self.file = IfcStore.get_file()

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

@@ -20,14 +20,13 @@ class BIM_PT_style(Panel):
         )
 
     def draw(self, context):
-        props = context.active_object.active_material.BIMMaterialProperties
+        material = context.active_object.active_material
+        props = material.BIMMaterialProperties
         row = self.layout.row(align=True)
         if props.ifc_style_id:
-            row.operator("bim.update_style_colours", icon="GREASEPENCIL")
-            op = row.operator("bim.unlink_style", icon="UNLINKED", text="")
-            op.material = context.active_object.active_material.name
-            op = row.operator("bim.remove_style", icon="X", text="")
-            op.material = context.active_object.active_material.name
+            row.operator("bim.update_style_colours", icon="GREASEPENCIL").material = material.name
+            row.operator("bim.unlink_style", icon="UNLINKED", text="").material = material.name
+            row.operator("bim.remove_style", icon="X", text="").material = material.name
         else:
             row.operator("bim.add_style", icon="ADD")
 

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

@@ -0,0 +1,27 @@
+import bpy
+from . import ui, prop, operator
+
+classes = (
+    operator.LoadSystems,
+    operator.DisableSystemEditingUI,
+    operator.AddSystem,
+    operator.EditSystem,
+    operator.RemoveSystem,
+    operator.AssignSystem,
+    operator.UnassignSystem,
+    operator.EnableEditingSystem,
+    operator.DisableEditingSystem,
+    operator.SelectSystemProducts,
+    prop.System,
+    prop.BIMSystemProperties,
+    ui.BIM_PT_systems,
+    ui.BIM_UL_systems,
+)
+
+
+def register():
+    bpy.types.Scene.BIMSystemProperties = bpy.props.PointerProperty(type=prop.BIMSystemProperties)
+
+
+def unregister():
+    del bpy.types.Scene.BIMSystemProperties

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

@@ -0,0 +1,196 @@
+import bpy
+import ifcopenshell.util.attribute
+import ifcopenshell.api
+from blenderbim.bim.ifc import IfcStore
+from ifcopenshell.api.system.data import Data
+
+
+class LoadSystems(bpy.types.Operator):
+    bl_idname = "bim.load_systems"
+    bl_label = "Load Systems"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        props = context.scene.BIMSystemProperties
+        while len(props.systems) > 0:
+            props.systems.remove(0)
+        for ifc_definition_id, system in Data.systems.items():
+            new = props.systems.add()
+            new.ifc_definition_id = ifc_definition_id
+            new.name = system["Name"]
+        props.is_editing = True
+        bpy.ops.bim.disable_editing_system()
+        return {"FINISHED"}
+
+
+class DisableSystemEditingUI(bpy.types.Operator):
+    bl_idname = "bim.disable_system_editing_ui"
+    bl_label = "Disable System Editing UI"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        context.scene.BIMSystemProperties.is_editing = False
+        return {"FINISHED"}
+
+
+class AddSystem(bpy.types.Operator):
+    bl_idname = "bim.add_system"
+    bl_label = "Add System"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        result = ifcopenshell.api.run("system.add_system", IfcStore.get_file())
+        Data.load(IfcStore.get_file())
+        bpy.ops.bim.load_systems()
+        bpy.ops.bim.enable_editing_system(system=result.id())
+        return {"FINISHED"}
+
+
+class EditSystem(bpy.types.Operator):
+    bl_idname = "bim.edit_system"
+    bl_label = "Edit System"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        props = context.scene.BIMSystemProperties
+        attributes = {}
+        for attribute in props.system_attributes:
+            if attribute.is_null:
+                attributes[attribute.name] = None
+            else:
+                attributes[attribute.name] = attribute.string_value
+        self.file = IfcStore.get_file()
+        ifcopenshell.api.run(
+            "system.edit_system", self.file, **{"system": self.file.by_id(props.active_system_id), "attributes": attributes}
+        )
+        Data.load(IfcStore.get_file())
+        bpy.ops.bim.load_systems()
+        return {"FINISHED"}
+
+
+class RemoveSystem(bpy.types.Operator):
+    bl_idname = "bim.remove_system"
+    bl_label = "Remove System"
+    bl_options = {"REGISTER", "UNDO"}
+    system: bpy.props.IntProperty()
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        props = context.scene.BIMSystemProperties
+        self.file = IfcStore.get_file()
+        ifcopenshell.api.run("system.remove_system", self.file, **{"system": self.file.by_id(self.system)})
+        Data.load(IfcStore.get_file())
+        bpy.ops.bim.load_systems()
+        return {"FINISHED"}
+
+
+class EnableEditingSystem(bpy.types.Operator):
+    bl_idname = "bim.enable_editing_system"
+    bl_label = "Enable Editing System"
+    bl_options = {"REGISTER", "UNDO"}
+    system: bpy.props.IntProperty()
+
+    def execute(self, context):
+        props = context.scene.BIMSystemProperties
+        while len(props.system_attributes) > 0:
+            props.system_attributes.remove(0)
+
+        data = Data.systems[self.system]
+
+        for attribute in IfcStore.get_schema().declaration_by_name("IfcSystem").all_attributes():
+            data_type = ifcopenshell.util.attribute.get_primitive_type(attribute)
+            if data_type == "entity":
+                continue
+            new = props.system_attributes.add()
+            new.name = attribute.name()
+            new.is_null = data[attribute.name()] is None
+            new.is_optional = attribute.optional()
+            new.string_value = "" if new.is_null else data[attribute.name()]
+        props.active_system_id = self.system
+        return {"FINISHED"}
+
+
+class DisableEditingSystem(bpy.types.Operator):
+    bl_idname = "bim.disable_editing_system"
+    bl_label = "Disable Editing System"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        context.scene.BIMSystemProperties.active_system_id = 0
+        return {"FINISHED"}
+
+
+class AssignSystem(bpy.types.Operator):
+    bl_idname = "bim.assign_system"
+    bl_label = "Assign System"
+    bl_options = {"REGISTER", "UNDO"}
+    product: bpy.props.StringProperty()
+    system: bpy.props.IntProperty()
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        product = bpy.data.objects.get(self.product) if self.product else context.active_object
+        self.file = IfcStore.get_file()
+        ifcopenshell.api.run(
+            "system.assign_system",
+            self.file,
+            **{
+                "product": self.file.by_id(product.BIMObjectProperties.ifc_definition_id),
+                "system": self.file.by_id(self.system),
+            }
+        )
+        Data.load(IfcStore.get_file())
+        return {"FINISHED"}
+
+
+class UnassignSystem(bpy.types.Operator):
+    bl_idname = "bim.unassign_system"
+    bl_label = "Unassign System"
+    bl_options = {"REGISTER", "UNDO"}
+    product: bpy.props.StringProperty()
+    system: bpy.props.IntProperty()
+
+    def execute(self, context):
+        return IfcStore.execute_ifc_operator(self, context)
+
+    def _execute(self, context):
+        product = bpy.data.objects.get(self.product) if self.product else context.active_object
+        self.file = IfcStore.get_file()
+        ifcopenshell.api.run(
+            "system.unassign_system",
+            self.file,
+            **{
+                "product": self.file.by_id(product.BIMObjectProperties.ifc_definition_id),
+                "system": self.file.by_id(self.system),
+            }
+        )
+        Data.load(IfcStore.get_file())
+        return {"FINISHED"}
+
+
+class SelectSystemProducts(bpy.types.Operator):
+    bl_idname = "bim.select_system_products"
+    bl_label = "Select System Products"
+    bl_options = {"REGISTER", "UNDO"}
+    system: bpy.props.IntProperty()
+
+    def execute(self, context):
+        self.file = IfcStore.get_file()
+        for obj in context.visible_objects:
+            obj.select_set(False)
+            if not obj.BIMObjectProperties.ifc_definition_id:
+                continue
+            product_systems = Data.products.get(obj.BIMObjectProperties.ifc_definition_id, [])
+            if self.system in product_systems:
+                obj.select_set(True)
+        return {"FINISHED"}

src/blenderbim/blenderbim/bim/module/system/prop.py

@@ -0,0 +1,26 @@
+import bpy
+from blenderbim.bim.prop import StrProperty, Attribute
+from bpy.types import PropertyGroup
+from bpy.props import (
+    PointerProperty,
+    StringProperty,
+    EnumProperty,
+    BoolProperty,
+    IntProperty,
+    FloatProperty,
+    FloatVectorProperty,
+    CollectionProperty,
+)
+
+
+class System(PropertyGroup):
+    name: StringProperty(name="Name")
+    ifc_definition_id: IntProperty(name="IFC Definition ID")
+
+
+class BIMSystemProperties(PropertyGroup):
+    system_attributes: CollectionProperty(name="System Attributes", type=Attribute)
+    is_editing: BoolProperty(name="Is Editing", default=False)
+    systems: CollectionProperty(name="Systems", type=System)
+    active_system_index: IntProperty(name="Active System Index")
+    active_system_id: IntProperty(name="Active System Id")

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

@@ -0,0 +1,85 @@
+from bpy.types import Panel, UIList
+from blenderbim.bim.ifc import IfcStore
+from ifcopenshell.api.system.data import Data
+
+
+class BIM_PT_systems(Panel):
+    bl_label = "IFC Systems"
+    bl_idname = "BIM_PT_systems"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+
+    @classmethod
+    def poll(cls, context):
+        return IfcStore.get_file()
+
+    def draw(self, context):
+        if not Data.is_loaded:
+            Data.load(IfcStore.get_file())
+        self.props = context.scene.BIMSystemProperties
+
+        row = self.layout.row(align=True)
+        row.label(text="{} Systems Found".format(len(Data.systems)), icon="OUTLINER")
+        if self.props.is_editing:
+            row.operator("bim.add_system", text="", icon="ADD")
+            row.operator("bim.disable_system_editing_ui", text="", icon="CANCEL")
+        else:
+            row.operator("bim.load_systems", text="", icon="GREASEPENCIL")
+
+        if self.props.is_editing:
+            self.layout.template_list(
+                "BIM_UL_systems",
+                "",
+                self.props,
+                "systems",
+                self.props,
+                "active_system_index",
+            )
+
+        if self.props.active_system_id:
+            self.draw_editable_ui(context)
+
+    def draw_editable_ui(self, context):
+        for attribute in self.props.system_attributes:
+            row = self.layout.row(align=True)
+            row.prop(attribute, "string_value", text=attribute.name)
+            if attribute.is_optional:
+                row.prop(attribute, "is_null", icon="RADIOBUT_OFF" if attribute.is_null else "RADIOBUT_ON", text="")
+
+
+
+class BIM_UL_systems(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            row = layout.row(align=True)
+            row.label(text=item.name)
+
+            if context.active_object:
+                oprops = context.active_object.BIMObjectProperties
+                if (
+                    oprops.ifc_definition_id in Data.products
+                    and item.ifc_definition_id in Data.products[oprops.ifc_definition_id]
+                ):
+                    op = row.operator("bim.unassign_system", text="", icon="KEYFRAME_HLT", emboss=False)
+                    op.system = item.ifc_definition_id
+                else:
+                    op = row.operator("bim.assign_system", text="", icon="KEYFRAME", emboss=False)
+                    op.system = item.ifc_definition_id
+
+            if context.scene.BIMSystemProperties.active_system_id == item.ifc_definition_id:
+                op = row.operator("bim.select_system_products", text="", icon="RESTRICT_SELECT_OFF")
+                op.system = item.ifc_definition_id
+                row.operator("bim.edit_system", text="", icon="CHECKMARK")
+                row.operator("bim.disable_editing_system", text="", icon="CANCEL")
+            elif context.scene.BIMSystemProperties.active_system_id:
+                op = row.operator("bim.select_system_products", text="", icon="RESTRICT_SELECT_OFF")
+                op.system = item.ifc_definition_id
+                row.operator("bim.remove_system", text="", icon="X").system = item.ifc_definition_id
+            else:
+                op = row.operator("bim.select_system_products", text="", icon="RESTRICT_SELECT_OFF")
+                op.system = item.ifc_definition_id
+                op = row.operator("bim.enable_editing_system", text="", icon="GREASEPENCIL")
+                op.system = item.ifc_definition_id
+                row.operator("bim.remove_system", text="", icon="X").system = item.ifc_definition_id

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

@@ -7,6 +7,7 @@ classes = (
     operator.EnableEditingType,
     operator.DisableEditingType,
     operator.SelectSimilarType,
+    operator.SelectTypeObjects,
     prop.BIMTypeProperties,
     prop.BIMTypeObjectProperties,
     ui.BIM_PT_type,

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

@@ -22,7 +22,9 @@ class AssignType(bpy.types.Operator):
         self.file = IfcStore.get_file()
         relating_type = self.relating_type or int(context.active_object.BIMTypeProperties.relating_type)
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)]
+            if self.related_object
+            else context.selected_objects or [context.active_object]
         )
         for related_object in related_objects:
             oprops = related_object.BIMObjectProperties
@@ -39,15 +41,19 @@ class AssignType(bpy.types.Operator):
             MaterialData.load(IfcStore.get_file(), oprops.ifc_definition_id)
             representation_ids = GeometryData.products[oprops.ifc_definition_id]
             if not representation_ids:
-                pass # TODO: clear geometry? Make void? Make none type?
+                pass  # TODO: clear geometry? Make void? Make none type?
             has_switched = False
             for representation_id in representation_ids:
                 representation = GeometryData.representations[representation_id]
                 if representation["ContextOfItems"]["ContextIdentifier"] == "Body":
-                    bpy.ops.bim.switch_representation(obj=related_object.name, ifc_definition_id=representation_id)
+                    bpy.ops.bim.switch_representation(
+                        obj=related_object.name, ifc_definition_id=representation_id, should_switch_all_meshes=False
+                    )
                     has_switched = True
             if not has_switched and representation_ids:
-                bpy.ops.bim.switch_representation(obj=related_object.name, ifc_definition_id=representation_id)
+                bpy.ops.bim.switch_representation(
+                    obj=related_object.name, ifc_definition_id=representation_id, should_switch_all_meshes=False
+                )
 
         bpy.ops.bim.disable_editing_type(obj=related_object.name)
         MaterialData.load(self.file)
@@ -66,7 +72,7 @@ class UnassignType(bpy.types.Operator):
     def _execute(self, context):
         self.file = IfcStore.get_file()
         related_objects = (
-            [bpy.data.objects.get(self.related_object)] if self.related_object else bpy.context.selected_objects
+            [bpy.data.objects.get(self.related_object)] if self.related_object else context.selected_objects
         )
         for related_object in related_objects:
             oprops = related_object.BIMObjectProperties
@@ -87,7 +93,7 @@ class EnableEditingType(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.active_object.BIMTypeProperties.is_editing_type = True
+        context.active_object.BIMTypeProperties.is_editing_type = True
         return {"FINISHED"}
 
 
@@ -98,7 +104,7 @@ class DisableEditingType(bpy.types.Operator):
     obj: bpy.props.StringProperty()
 
     def execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         obj.BIMTypeProperties.is_editing_type = False
         return {"FINISHED"}
 
@@ -111,7 +117,7 @@ class SelectSimilarType(bpy.types.Operator):
 
     def execute(self, context):
         self.file = IfcStore.get_file()
-        related_object = bpy.data.objects.get(self.related_object) if self.related_object else bpy.context.active_object
+        related_object = bpy.data.objects.get(self.related_object) if self.related_object else context.active_object
         oprops = related_object.BIMObjectProperties
         product = self.file.by_id(oprops.ifc_definition_id)
         declaration = IfcStore.get_schema().declaration_by_name(product.is_a())
@@ -123,7 +129,24 @@ class SelectSimilarType(bpy.types.Operator):
             related_objects = ifcopenshell.api.run(
                 "type.get_related_objects", self.file, **{"related_object": self.file.by_id(oprops.ifc_definition_id)}
             )
-        for obj in bpy.context.visible_objects:
+        for obj in context.visible_objects:
+            if obj.BIMObjectProperties.ifc_definition_id in related_objects:
+                obj.select_set(True)
+        return {"FINISHED"}
+
+
+class SelectTypeObjects(bpy.types.Operator):
+    bl_idname = "bim.select_type_objects"
+    bl_label = "Select Type Objects"
+    bl_options = {"REGISTER", "UNDO"}
+    relating_type: bpy.props.StringProperty()
+
+    def execute(self, context):
+        self.file = IfcStore.get_file()
+        relating_type = bpy.data.objects.get(self.relating_type) if self.relating_type else context.active_object
+        oprops = relating_type.BIMObjectProperties
+        related_objects = Data.types[oprops.ifc_definition_id]
+        for obj in context.visible_objects:
             if obj.BIMObjectProperties.ifc_definition_id in related_objects:
                 obj.select_set(True)
         return {"FINISHED"}

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

@@ -17,20 +17,32 @@ class BIM_PT_type(Panel):
             return False
         if not IfcStore.get_element(props.ifc_definition_id):
             return False
-        if props.ifc_definition_id not in Data.products:
+        if props.ifc_definition_id not in Data.products and props.ifc_definition_id not in Data.types:
             Data.load(IfcStore.get_file(), props.ifc_definition_id)
-        if not Data.products[props.ifc_definition_id]:
+        if props.ifc_definition_id not in Data.products and props.ifc_definition_id not in Data.types:
+            return False
+        if not Data.products.get(props.ifc_definition_id, None) and not Data.types.get(props.ifc_definition_id, None):
             return False
         return True
 
-
     def draw(self, context):
+        oprops = context.active_object.BIMObjectProperties
+
+        if oprops.ifc_definition_id in Data.products:
+            self.draw_product_ui(context)
+        else:
+            self.draw_type_ui(context)
+
+    def draw_type_ui(self, context):
+        props = context.active_object.BIMTypeProperties
+        oprops = context.active_object.BIMObjectProperties
+        row = self.layout.row(align=True)
+        row.label(text=f"{len(Data.types[oprops.ifc_definition_id])} Typed Objects")
+        row.operator("bim.select_type_objects", icon="RESTRICT_SELECT_OFF", text="")
+
+    def draw_product_ui(self, context):
         props = context.active_object.BIMTypeProperties
         oprops = context.active_object.BIMObjectProperties
-        if not oprops.ifc_definition_id:
-            return
-        if oprops.ifc_definition_id not in Data.products:
-            Data.load(IfcStore.get_file(), oprops.ifc_definition_id)
 
         if props.is_editing_type:
             row = self.layout.row(align=True)

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

@@ -13,26 +13,27 @@ class AssignUnit(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        ifcopenshell.api.run("unit.assign_unit", IfcStore.get_file(), **self.get_units())
+        ifcopenshell.api.run("unit.assign_unit", IfcStore.get_file(), **self.get_units(context))
         Data.load(IfcStore.get_file())
         return {"FINISHED"}
 
-    def get_units(self):
+    def get_units(self, context):
+        scene = context.scene
         units = {
             "length": {
                 "ifc": None,
-                "is_metric": bpy.context.scene.unit_settings.system != "IMPERIAL",
-                "raw": bpy.context.scene.unit_settings.length_unit,
+                "is_metric": scene.unit_settings.system != "IMPERIAL",
+                "raw": scene.unit_settings.length_unit,
             },
             "area": {
                 "ifc": None,
-                "is_metric": bpy.context.scene.unit_settings.system != "IMPERIAL",
-                "raw": bpy.context.scene.unit_settings.length_unit,
+                "is_metric": scene.unit_settings.system != "IMPERIAL",
+                "raw": scene.unit_settings.length_unit,
             },
             "volume": {
                 "ifc": None,
-                "is_metric": bpy.context.scene.unit_settings.system != "IMPERIAL",
-                "raw": bpy.context.scene.unit_settings.length_unit,
+                "is_metric": scene.unit_settings.system != "IMPERIAL",
+                "raw": scene.unit_settings.length_unit,
             },
         }
         for data in units.values():

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

@@ -6,6 +6,7 @@ classes = (
     operator.RemoveOpening,
     operator.AddFilling,
     operator.RemoveFilling,
+    operator.ToggleOpeningVisibility,
     prop.VoidProperties,
     ui.BIM_PT_voids,
 )

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

@@ -16,7 +16,7 @@ class AddOpening(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         opening = bpy.data.objects.get(self.opening)
         opening.display_type = "WIRE"
         if not opening.BIMObjectProperties.ifc_definition_id:
@@ -69,7 +69,7 @@ class RemoveOpening(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         for modifier in obj.modifiers:
             if modifier.type != "BOOLEAN":
@@ -97,7 +97,7 @@ class AddFilling(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         opening = bpy.data.objects.get(self.opening) if self.opening else context.scene.VoidProperties.desired_opening
         self.file = IfcStore.get_file()
         element_id = obj.BIMObjectProperties.ifc_definition_id
@@ -123,10 +123,22 @@ class RemoveFilling(bpy.types.Operator):
         return IfcStore.execute_ifc_operator(self, context)
 
     def _execute(self, context):
-        obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
+        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "void.remove_filling", self.file, **{"element": self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)}
         )
         Data.load(IfcStore.get_file(), obj.BIMObjectProperties.ifc_definition_id)
         return {"FINISHED"}
+
+
+class ToggleOpeningVisibility(bpy.types.Operator):
+    bl_idname = "bim.toggle_opening_visibility"
+    bl_label = "Toggle Opening Visibility"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        for project in [c for c in context.view_layer.layer_collection.children if "IfcProject" in c.name]:
+            for collection in [c for c in project.children if "IfcOpeningElements" in c.name]:
+                collection.hide_viewport = not collection.hide_viewport
+        return {"FINISHED"}

src/blenderbim/blenderbim/bim/operator.py

@@ -2,12 +2,10 @@ import os
 import bpy
 import time
 import json
+import tempfile
 import logging
 import webbrowser
 import ifcopenshell
-
-# Deleting the below drawing import breaks svgwrite's ElementTree appending because ... magic?
-import blenderbim.bim.module.drawing
 from . import export_ifc
 from . import import_ifc
 from . import schema
@@ -31,8 +29,8 @@ class ExportIFC(bpy.types.Operator):
         if not IfcStore.get_file():
             self.report({"ERROR"}, "No IFC project is available for export - create or import a project first.")
             return {"FINISHED"}
-        if bpy.context.scene.BIMProperties.ifc_file:
-            self.filepath = bpy.context.scene.BIMProperties.ifc_file
+        if context.scene.BIMProperties.ifc_file:
+            self.filepath = context.scene.BIMProperties.ifc_file
             return self.execute(context)
         if not self.filepath:
             self.filepath = bpy.path.ensure_ext(bpy.data.filepath, ".ifc")
@@ -46,8 +44,11 @@ class ExportIFC(bpy.types.Operator):
     def _execute(self, context):
         start = time.time()
         logger = logging.getLogger("ExportIFC")
+        path_log = os.path.join(bpy.context.scene.BIMProperties.data_dir, "process.log"),
+        if not os.access(bpy.context.scene.BIMProperties.data_dir, os.W_OK):
+            path_log = os.path.join(tempfile.mkdtemp(), "process.log")
         logging.basicConfig(
-            filename=os.path.join(context.scene.BIMProperties.data_dir, "process.log"),
+            filename=path_log,
             filemode="a",
             level=logging.DEBUG,
         )
@@ -68,11 +69,12 @@ class ExportIFC(bpy.types.Operator):
         ifc_exporter.export()
         settings.logger.info("Export finished in {:.2f} seconds".format(time.time() - start))
         print("Export finished in {:.2f} seconds".format(time.time() - start))
-        if not bpy.context.scene.DocProperties.ifc_files:
-            new = bpy.context.scene.DocProperties.ifc_files.add()
+        scene = context.scene
+        if not scene.DocProperties.ifc_files:
+            new = scene.DocProperties.ifc_files.add()
             new.name = output_file
-        if not bpy.context.scene.BIMProperties.ifc_file:
-            bpy.context.scene.BIMProperties.ifc_file = output_file
+        if not scene.BIMProperties.ifc_file:
+            scene.BIMProperties.ifc_file = output_file
         if bpy.data.is_saved and bpy.data.is_dirty and bpy.data.filepath:
             bpy.ops.wm.save_mainfile(filepath=bpy.data.filepath)
         return {"FINISHED"}
@@ -108,8 +110,11 @@ class ImportIFC(bpy.types.Operator, ImportHelper):
     def execute(self, context):
         start = time.time()
         logger = logging.getLogger("ImportIFC")
+        path_log = os.path.join(context.scene.BIMProperties.data_dir, "process.log"),
+        if not os.access(context.scene.BIMProperties.data_dir, os.W_OK):
+            path_log = os.path.join(tempfile.mkdtemp(), "process.log")
         logging.basicConfig(
-            filename=os.path.join(bpy.context.scene.BIMProperties.data_dir, "process.log"),
+            filename=path_log,
             filemode="a",
             level=logging.DEBUG,
         )
@@ -156,7 +161,8 @@ class SelectIfcFile(bpy.types.Operator):
     filter_glob: bpy.props.StringProperty(default="*.ifc;*.ifczip;*.ifcxml", options={"HIDDEN"})
 
     def execute(self, context):
-        bpy.context.scene.BIMProperties.ifc_file = self.filepath
+        if os.path.exists(self.filepath) and "ifc" in os.path.splitext(self.filepath)[1]:
+            context.scene.BIMProperties.ifc_file = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -171,7 +177,7 @@ class SelectDataDir(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.BIMProperties.data_dir = self.filepath
+        context.scene.BIMProperties.data_dir = os.path.dirname(self.filepath)
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -186,7 +192,7 @@ class SelectSchemaDir(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        bpy.context.scene.BIMProperties.schema_dir = self.filepath
+        context.scene.BIMProperties.schema_dir = os.path.dirname(self.filepath)
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -217,36 +223,36 @@ class AddSectionPlane(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        obj = self.create_section_obj()
+        obj = self.create_section_obj(context)
         if not self.has_section_override_node():
             self.create_section_compare_node()
-            self.create_section_override_node(obj)
+            self.create_section_override_node(obj, context)
         else:
             self.append_obj_to_section_override_node(obj)
-        self.add_default_material_if_none_exists()
+        self.add_default_material_if_none_exists(context)
         self.override_materials()
         return {"FINISHED"}
 
-    def create_section_obj(self):
+    def create_section_obj(self, context):
         section = bpy.data.objects.new("Section", None)
         section.empty_display_type = "SINGLE_ARROW"
         section.empty_display_size = 5
         section.show_in_front = True
         if (
-            bpy.context.active_object
-            and bpy.context.active_object.select_get()
-            and isinstance(bpy.context.active_object.data, bpy.types.Camera)
+            context.active_object
+            and context.active_object.select_get()
+            and isinstance(context.active_object.data, bpy.types.Camera)
         ):
             section.matrix_world = (
-                bpy.context.active_object.matrix_world @ Euler((radians(180.0), 0.0, 0.0), "XYZ").to_matrix().to_4x4()
+                context.active_object.matrix_world @ Euler((radians(180.0), 0.0, 0.0), "XYZ").to_matrix().to_4x4()
             )
         else:
             section.rotation_euler = Euler((radians(180.0), 0.0, 0.0), "XYZ")
-            section.location = bpy.context.scene.cursor.location
+            section.location = context.scene.cursor.location
         collection = bpy.data.collections.get("Sections")
         if not collection:
             collection = bpy.data.collections.new("Sections")
-            bpy.context.scene.collection.children.link(collection)
+            context.scene.collection.children.link(collection)
         collection.objects.link(section)
         return section
 
@@ -278,7 +284,7 @@ class AddSectionPlane(bpy.types.Operator):
         group.links.new(add.outputs[0], compare.inputs[0])
         group.links.new(compare.outputs[0], group_output.inputs[""])
 
-    def create_section_override_node(self, obj):
+    def create_section_override_node(self, obj, context):
         group = bpy.data.node_groups.new("Section Override", type="ShaderNodeTree")
 
         group_input = group.nodes.new(type="NodeGroupInput")
@@ -287,7 +293,7 @@ class AddSectionPlane(bpy.types.Operator):
         backfacing = group.nodes.new(type="ShaderNodeNewGeometry")
         backfacing_mix = group.nodes.new(type="ShaderNodeMixShader")
         emission = group.nodes.new(type="ShaderNodeEmission")
-        emission.inputs[0].default_value = list(bpy.context.scene.BIMProperties.section_plane_colour) + [1]
+        emission.inputs[0].default_value = list(context.scene.BIMProperties.section_plane_colour) + [1]
 
         group.links.new(backfacing.outputs["Backfacing"], backfacing_mix.inputs[0])
         group.links.new(group_input.outputs[""], backfacing_mix.inputs[1])
@@ -332,16 +338,16 @@ class AddSectionPlane(bpy.types.Operator):
 
         section_compare.name = "Last Section Compare"
 
-    def add_default_material_if_none_exists(self):
+    def add_default_material_if_none_exists(self, context):
         material = bpy.data.materials.get("Section Override")
         if not material:
             material = bpy.data.materials.new("Section Override")
             material.use_nodes = True
 
-        if bpy.context.scene.BIMProperties.should_section_selected_objects:
-            objects = list(bpy.context.selected_objects)
+        if context.scene.BIMProperties.should_section_selected_objects:
+            objects = list(context.selected_objects)
         else:
-            objects = list(bpy.context.visible_objects)
+            objects = list(context.visible_objects)
 
         for obj in objects:
             aggregate = obj.instance_collection
@@ -385,7 +391,7 @@ class RemoveSectionPlane(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        name = bpy.context.active_object.name
+        name = context.active_object.name
         section_override = bpy.data.node_groups.get("Section Override")
         if not section_override:
             return {"FINISHED"}
@@ -401,7 +407,7 @@ class RemoveSectionPlane(bpy.types.Operator):
             else:  # If it links to section_compare.inputs[0]
                 if section_compare.inputs[1].links[0].from_node.name == "Mock Section":
                     # Then it is the very last section. Purge everything.
-                    self.purge_all_section_data()
+                    self.purge_all_section_data(context)
                     return {"FINISHED"}
                 section_override.links.new(
                     section_compare.inputs[1].links[0].from_socket, section_compare.outputs[0].links[0].to_socket
@@ -414,10 +420,10 @@ class RemoveSectionPlane(bpy.types.Operator):
             section_mix = section_override.nodes.get("Section Mix")
             new_last_compare = section_mix.inputs[0].links[0].from_node
             new_last_compare.name = "Last Section Compare"
-        bpy.ops.object.delete({"selected_objects": [bpy.context.active_object]})
+        bpy.ops.object.delete({"selected_objects": [context.active_object]})
         return {"FINISHED"}
 
-    def purge_all_section_data(self):
+    def purge_all_section_data(self, context):
         bpy.data.materials.remove(bpy.data.materials.get("Section Override"))
         for material in bpy.data.materials:
             if not material.node_tree:
@@ -431,7 +437,7 @@ class RemoveSectionPlane(bpy.types.Operator):
             material.node_tree.nodes.remove(override)
         bpy.data.node_groups.remove(bpy.data.node_groups.get("Section Override"))
         bpy.data.node_groups.remove(bpy.data.node_groups.get("Section Compare"))
-        bpy.ops.object.delete({"selected_objects": [bpy.context.active_object]})
+        bpy.ops.object.delete({"selected_objects": [context.active_object]})
 
 
 class ReloadIfcFile(bpy.types.Operator):
@@ -450,7 +456,7 @@ class AddIfcFile(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.scene.DocProperties.ifc_files.add()
+        context.scene.DocProperties.ifc_files.add()
         return {"FINISHED"}
 
 
@@ -461,7 +467,7 @@ class RemoveIfcFile(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.scene.DocProperties.ifc_files.remove(self.index)
+        context.scene.DocProperties.ifc_files.remove(self.index)
         return {"FINISHED"}
 
 
@@ -472,9 +478,9 @@ class SetOverrideColour(bpy.types.Operator):
 
     def execute(self, context):
         result = 0
-        for obj in bpy.context.selected_objects:
-            obj.color = bpy.context.scene.BIMProperties.override_colour
-        area = next(area for area in bpy.context.screen.areas if area.type == "VIEW_3D")
+        for obj in context.selected_objects:
+            obj.color = context.scene.BIMProperties.override_colour
+        area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
         area.spaces[0].shading.color_type = "OBJECT"
         return {"FINISHED"}
 
@@ -500,7 +506,7 @@ class LinkIfc(bpy.types.Operator):
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
     def execute(self, context):
-        # bpy.context.active_object.active_material.BIMMaterialProperties.location = self.filepath
+        # context.active_object.active_material.BIMMaterialProperties.location = self.filepath
         # coll_name = "MyCollection"
 
         with bpy.data.libraries.load(self.filepath, link=True) as (data_from, data_to):
@@ -529,13 +535,13 @@ class SnapSpacesTogether(bpy.types.Operator):
     def execute(self, context):
         threshold = 0.5
         processed_polygons = set()
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if obj.type != "MESH":
                 continue
             for polygon in obj.data.polygons:
                 center = obj.matrix_world @ polygon.center
                 distance = None
-                for obj2 in bpy.context.selected_objects:
+                for obj2 in context.selected_objects:
                     if obj2 == obj or obj.type != "MESH":
                         continue
                     result = obj2.ray_cast(obj2.matrix_world.inverted() @ center, polygon.normal, distance=threshold)
@@ -571,7 +577,7 @@ class SelectExternalMaterialDir(bpy.types.Operator):
 
     def execute(self, context):
         # TODO: this is dead code, awaiting reimplementation. See #1222.
-        bpy.context.active_object.active_material.BIMMaterialProperties.location = self.filepath
+        context.active_object.active_material.BIMMaterialProperties.location = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -585,28 +591,28 @@ class FetchExternalMaterial(bpy.types.Operator):
 
     def execute(self, context):
         # TODO: this is dead code, awaiting reimplementation. See #1222.
-        location = bpy.context.active_object.active_material.BIMMaterialProperties.location
+        location = context.active_object.active_material.BIMMaterialProperties.location
         if location[-6:] != ".mpass":
             return {"FINISHED"}
         if not os.path.isabs(location):
-            location = os.path.join(bpy.context.scene.BIMProperties.data_dir, location)
+            location = os.path.join(context.scene.BIMProperties.data_dir, location)
         with open(location) as f:
             self.material_pass = json.load(f)
-        if bpy.context.scene.render.engine == "BLENDER_EEVEE" and "eevee" in self.material_pass:
-            self.fetch_eevee_or_cycles("eevee")
-        elif bpy.context.scene.render.engine == "CYCLES" and "cycles" in self.material_pass:
-            self.fetch_eevee_or_cycles("cycles")
+        if context.scene.render.engine == "BLENDER_EEVEE" and "eevee" in self.material_pass:
+            self.fetch_eevee_or_cycles("eevee", context)
+        elif context.scene.render.engine == "CYCLES" and "cycles" in self.material_pass:
+            self.fetch_eevee_or_cycles("cycles", context)
         return {"FINISHED"}
 
-    def fetch_eevee_or_cycles(self, name):
-        identification = bpy.context.active_object.active_material.BIMMaterialProperties.identification
+    def fetch_eevee_or_cycles(self, name, context):
+        identification = context.active_object.active_material.BIMMaterialProperties.identification
         uri = self.material_pass[name]["uri"]
         if not os.path.isabs(uri):
-            uri = os.path.join(bpy.context.scene.BIMProperties.data_dir, uri)
+            uri = os.path.join(context.scene.BIMProperties.data_dir, uri)
         bpy.ops.wm.link(filename=identification, directory=os.path.join(uri, "Material"))
         for material in bpy.data.materials:
             if material.name == identification and material.library:
-                bpy.context.active_object.material_slots[0].material = material
+                context.active_object.material_slots[0].material = material
                 return
 
 
@@ -616,15 +622,15 @@ class FetchObjectPassport(bpy.types.Operator):
 
     def execute(self, context):
         # TODO: this is dead code, awaiting reimplementation. See #1222.
-        for reference in bpy.context.active_object.BIMObjectProperties.document_references:
-            reference = bpy.context.scene.BIMProperties.document_references[reference.name]
+        for reference in context.active_object.BIMObjectProperties.document_references:
+            reference = context.scene.BIMProperties.document_references[reference.name]
             if reference.location[-6:] == ".blend":
-                self.fetch_blender(reference)
+                self.fetch_blender(reference, context)
         return {"FINISHED"}
 
-    def fetch_blender(self, reference):
+    def fetch_blender(self, reference, context):
         bpy.ops.wm.link(filename=reference.name, directory=os.path.join(reference.location, "Mesh"))
-        bpy.context.active_object.data = bpy.data.meshes[reference.name]
+        context.active_object.data = bpy.data.meshes[reference.name]
 
 
 class CopyPropertyToSelection(bpy.types.Operator):
@@ -636,7 +642,7 @@ class CopyPropertyToSelection(bpy.types.Operator):
 
     def execute(self, context):
         # TODO: this is dead code, awaiting reimplementation. See #1222.
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if "/" not in obj.name:
                 continue
             pset = obj.BIMObjectProperties.psets.get(self.pset_name)
@@ -666,9 +672,9 @@ class CopyAttributeToSelection(bpy.types.Operator):
 
     def execute(self, context):
         # TODO: this is dead code, awaiting reimplementation. See #1222.
-        self.schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(bpy.context.scene.BIMProperties.export_schema)
+        self.schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(context.scene.BIMProperties.export_schema)
         self.applicable_attributes_cache = {}
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if "/" not in obj.name:
                 continue
             attribute = obj.BIMObjectProperties.attributes.get(self.attribute_name)

src/blenderbim/blenderbim/bim/schema.py

@@ -77,3 +77,7 @@ class IfcSchema:
 
 
 ifc = IfcSchema()
+
+def reload():
+    global ifc
+    ifc = IfcSchema()

src/blenderbim/blenderbim/bim/ui.py

@@ -15,7 +15,7 @@ class BIM_PT_section_plane(Panel):
     def draw(self, context):
         layout = self.layout
         layout.use_property_split = True
-        props = bpy.context.scene.BIMProperties
+        props = context.scene.BIMProperties
 
         row = layout.row()
         row.prop(props, "should_section_selected_objects")
@@ -91,7 +91,7 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
 
 def ifc_units(self, context):
     scene = context.scene
-    props = context.scene.BIMProperties
+    props = scene.BIMProperties
     layout = self.layout
     layout.use_property_decorate = False
     layout.use_property_split = True
@@ -100,7 +100,7 @@ def ifc_units(self, context):
     row = layout.row()
     row.prop(props, "volume_unit")
     row = layout.row()
-    if bpy.context.scene.unit_settings.system == "IMPERIAL":
+    if scene.unit_settings.system == "IMPERIAL":
         row.prop(props, "imperial_precision")
     else:
         row.prop(props, "metric_precision")

src/blenderbim/generate_demo_library.py

@@ -0,0 +1,86 @@
+import ifcopenshell
+import ifcopenshell.api
+import ifcopenshell.util.element
+
+
+class LibraryGenerator:
+    def generate(self):
+        self.file = ifcopenshell.api.run("project.create_file")
+        self.project = ifcopenshell.api.run(
+            "root.create_entity", self.file, ifc_class="IfcProjectLibrary", name="BlenderBIM Demo Library"
+        )
+        ifcopenshell.api.run("unit.assign_unit", self.file, length={"is_metric": True, "raw": "METERS"})
+
+        self.material = ifcopenshell.api.run("material.add_material", self.file, name="Unknown")
+
+        self.create_layer_type("IfcWallType", "DEMO50", 0.05)
+        self.create_layer_type("IfcWallType", "DEMO100", 0.1)
+        self.create_layer_type("IfcWallType", "DEMO200", 0.2)
+        self.create_layer_type("IfcWallType", "DEMO300", 0.3)
+
+        self.create_layer_type("IfcSlabType", "DEMO150", 0.2)
+        self.create_layer_type("IfcSlabType", "DEMO250", 0.3)
+
+        profile = self.file.create_entity("IfcRectangleProfileDef", ProfileType="AREA", XDim=0.5, YDim=0.6)
+        self.create_profile_type("IfcColumnType", "DEMO1", profile)
+
+        profile = self.file.create_entity(
+            "IfcCircleHollowProfileDef", ProfileType="AREA", Radius=0.25, WallThickness=0.005
+        )
+        self.create_profile_type("IfcColumnType", "DEMO2", profile)
+
+        profile = self.file.create_entity(
+            "IfcRectangleHollowProfileDef",
+            ProfileType="AREA",
+            XDim=0.075,
+            YDim=0.15,
+            WallThickness=0.005,
+            InnerFilletRadius=0.005,
+            OuterFilletRadius=0.005,
+        )
+        self.create_profile_type("IfcColumnType", "DEMO3", profile)
+
+        profile = self.file.create_entity(
+            "IfcIShapeProfileDef",
+            ProfileType="AREA",
+            OverallWidth=0.1,
+            OverallDepth=0.2,
+            WebThickness=0.005,
+            FlangeThickness=0.01,
+            FilletRadius=0.005,
+        )
+        self.create_profile_type("IfcBeamType", "DEMO1", profile)
+
+        profile = self.file.create_entity(
+            "IfcCShapeProfileDef",
+            ProfileType="AREA",
+            Depth=0.2,
+            Width=0.1,
+            WallThickness=0.0015,
+            Girth=0.03,
+            InternalFilletRadius=0.005,
+        )
+        self.create_profile_type("IfcBeamType", "DEMO2", profile)
+
+        self.file.write("blenderbim-demo-library.ifc")
+
+    def create_layer_type(self, ifc_class, name, thickness):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class=ifc_class, name=name)
+        ifcopenshell.api.run("material.assign_material", self.file, product=element, type="IfcMaterialLayerSet")
+        layer_set = ifcopenshell.util.element.get_material(element)
+        layer = ifcopenshell.api.run("material.add_layer", self.file, layer_set=layer_set, material=self.material)
+        layer.LayerThickness = thickness
+        ifcopenshell.api.run("project.assign_declaration", self.file, definition=element, relating_context=self.project)
+
+    def create_profile_type(self, ifc_class, name, profile):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class=ifc_class, name=name)
+        ifcopenshell.api.run("material.assign_material", self.file, product=element, type="IfcMaterialProfileSet")
+        profile_set = ifcopenshell.util.element.get_material(element)
+        material_profile = ifcopenshell.api.run(
+            "material.add_profile", self.file, profile_set=profile_set, material=self.material
+        )
+        ifcopenshell.api.run("material.assign_profile", self.file, material_profile=material_profile, profile=profile)
+        ifcopenshell.api.run("project.assign_declaration", self.file, definition=element, relating_context=self.project)
+
+
+LibraryGenerator().generate()

src/ifcbimtester/bimtester/features/steps/all.py

@@ -20,4 +20,7 @@ use_step_matcher("parse")
 from bimtester.features.steps.project_setup import de, en, fr, it, nl
 
 use_step_matcher("parse")
-from bimtester.features.steps.aggregation import en
+from bimtester.features.steps.aggregation import en
+
+use_step_matcher("parse")
+from bimtester.features.steps.attributes_psets import en, de

src/ifcbimtester/bimtester/features/steps/attributes_psets/de.py

@@ -0,0 +1,8 @@
+from behave import step, use_step_matcher
+
+use_step_matcher("parse")
+
+
+@step("An alle {ifc_class} Bauteile ist im PSet {pset} das Attribut {aproperty} angehängt")
+def step_impl(context, ifc_class, aproperty, pset):
+    context.execute_steps(f"all {ifc_class} elements have an {aproperty} property in the {pset} pset")

src/ifcbimtester/bimtester/features/steps/attributes_psets/en.py

@@ -0,0 +1,91 @@
+from behave import step, use_step_matcher
+
+from bimtester.ifc import IfcStore
+from bimtester.util import assert_elements
+from bimtester.lang import _
+
+
+@step("All {ifc_class} elements have an {aproperty} property in the {pset} pset")
+def step_impl(context, ifc_class, aproperty, pset):
+    eleclass_has_property_in_pset(
+        context,
+        ifc_class,
+        aproperty,
+        pset
+    )
+
+
+# ------------------------------------------------------------------------
+# STEPS with Regular Expression Matcher ("re")
+# ------------------------------------------------------------------------
+use_step_matcher("re")
+
+
+@step(r"All (?P<ifc_class>.*) elements have an? (?P<property_path>.*\..*) property")
+def step_impl(context, ifc_class, property_path):
+    import re
+    pset, aproperty = property_path.split(".")
+    eleclass_has_property_in_pset(
+        context,
+        ifc_class,
+        aproperty,
+        pset
+    )
+
+
+@step(r'All (?P<ifc_class>.*) elements have an? (?P<property_path>.*\..*) property value matching the pattern "(?P<pattern>.*)"'
+)
+def step_impl(context, ifc_class, property_path, pattern):
+    import re
+    from ifcopenshell.util.element import get_psets
+
+    pset_name, property_name = property_path.split(".")
+    elements = IfcStore.file.by_type(ifc_class)
+    for element in elements:
+
+        psets = get_psets(element)
+
+        if  not pset_name in psets:
+            assert False
+        
+        pset = psets[pset_name]
+        if not property_name in pset:
+            assert False
+        
+        prop = pset[property_name]
+        # get_psets returns just strings
+
+        if not re.search(pattern, prop):
+            assert False
+
+
+def eleclass_has_property_in_pset(
+    context, ifc_class, aproperty, pset
+):
+    context.falseelems = []
+    context.falseguids = []
+    context.falseprops = {}
+    from ifcopenshell.util.element import get_psets
+
+    elements = IfcStore.file.by_type(ifc_class)
+    for elem in elements:
+        psets = get_psets(elem)
+        if not (pset in psets and aproperty in psets[pset]):
+            context.falseelems.append(str(elem))
+            context.falseguids.append(elem.GlobalId)
+        context.falseprops[elem.id()] = str(psets)
+
+    context.elemcount = len(elements)
+    context.falsecount = len(context.falseelems)
+    assert_elements(
+        ifc_class,
+        context.elemcount,
+        context.falsecount,
+        context.falseelems,
+        # TODO: Translate these messages into other languages
+        message_all_falseelems=_("All {elemcount} {ifc_class} elements are missing the property {parameter} in the pset."),
+        message_some_falseelems=_("The following {falsecount} of {elemcount} {ifc_class} elements are missing the property {parameter} in the pset: {falseelems}"),
+        message_no_elems=_("There are no {ifc_class} elements in the IFC file."),
+        parameter=aproperty
+    )
+    # the pset name is missing in the failing message, but it is in the step test name

src/ifcbimtester/bimtester/reports.py

@@ -2,6 +2,7 @@ import datetime
 import json
 import os
 import pystache
+import sys
 from bimtester.lang import _
 
 

src/ifcbimtester/examples/steps/attributes_psets.py

@@ -1,53 +0,0 @@
-from behave import step
-
-import attributes_psets_methods as apm
-from utils import assert_elements
-from utils import IfcFile
-from utils import switch_locale
-
-
-the_lang = "en"
-
-
-@step("all {ifc_class} elements have an {aproperty} property in the {pset} pset")
-def step_impl(context, ifc_class, aproperty, pset):
-    switch_locale(context.localedir, the_lang)
-    apm.eleclass_has_property_in_pset(
-        context,
-        ifc_class,
-        aproperty,
-        pset
-    )
-
-
-# ------------------------------------------------------------------------
-# STEPS with Regular Expression Matcher ("re")
-# ------------------------------------------------------------------------
-use_step_matcher("re")
-
-
-@step("all (?P<ifc_class>.*) elements have an? (?P<property_path>.*\..*) property")
-def step_impl(context, ifc_class, property_path):
-    pset_name, property_name = property_path.split(".")
-    elements = IfcFile.get().by_type(ifc_class)
-    for element in elements:
-        if not IfcFile.get_property(element, pset_name, property_name):
-            assert False
-
-
-@step(
-    'all (?P<ifc_class>.*) elements have an? (?P<property_path>.*\..*) property value matching the pattern "(?P<pattern>.*)"'
-)
-def step_impl(context, ifc_class, property_path, pattern):
-    import re
-
-    pset_name, property_name = property_path.split(".")
-    elements = IfcFile.get().by_type(ifc_class)
-    for element in elements:
-        prop = IfcFile.get_property(element, pset_name, property_name)
-        if not prop:
-            assert False
-        # For now, we only check single values
-        if prop.is_a("IfcPropertySingleValue"):
-            if not (prop.NominalValue and re.search(pattern, prop.NominalValue.wrappedValue)):
-                assert False

src/ifcbimtester/examples/steps/attributes_psets_de.py

@@ -1,18 +0,0 @@
-from behave import step
-
-import attributes_psets_methods as apm
-from utils import switch_locale
-
-
-the_lang = "de"
-
-
-@step("An alle {ifc_class} Bauteile ist im PSet {pset} das Attribut {aproperty} angehängt")
-def step_impl(context, ifc_class, aproperty, pset):
-    switch_locale(context.localedir, the_lang)
-    apm.eleclass_has_property_in_pset(
-        context,
-        ifc_class,
-        aproperty,
-        pset
-    )

src/ifcbimtester/examples/steps/attributes_psets_fr.py

@@ -1,21 +0,0 @@
-from behave import step
-
-import attributes_psets_methods as apm
-from utils import switch_locale
-
-
-the_lang = "fr"
-
-
-"""
-# TODO the next line needs translation
-@step("All {ifc_class} elements have an {aproperty} property in the {pset} pset")
-def step_impl(context, ifc_class, aproperty, pset):
-    switch_locale(context.localedir, the_lang)
-    apm.eleclass_has_property_in_pset(
-        context,
-        ifc_class,
-        aproperty,
-        pset
-    )
-"""

src/ifcbimtester/examples/steps/attributes_psets_methods.py

@@ -1,36 +0,0 @@
-import gettext  # noqa
-
-from utils import assert_elements
-from utils import IfcFile
-
-
-def eleclass_has_property_in_pset(
-    context, ifc_class, aproperty, pset
-):
-
-    context.falseelems = []
-    context.falseguids = []
-    context.falseprops = {}
-    from ifcopenshell.util.element import get_psets
-
-    elements = IfcFile.get().by_type(ifc_class)
-    for elem in elements:
-        psets = get_psets(elem)
-        if not (pset in psets and aproperty in psets[pset]):
-            context.falseelems.append(str(elem))
-            context.falseguids.append(elem.GlobalId)
-        context.falseprops[elem.id()] = str(psets)
-
-    context.elemcount = len(elements)
-    context.falsecount = len(context.falseelems)
-    assert_elements(
-        ifc_class,
-        context.elemcount,
-        context.falsecount,
-        context.falseelems,
-        message_all_falseelems=_("All {elemcount} {ifc_class} elements are missing the property {parameter} in the pset."),
-        message_some_falseelems=_("The following {falsecount} of {elemcount} {ifc_class} elements are missing the property {parameter} in the pset: {falseelems}"),
-        message_no_elems=_("There are no {ifc_class} elements in the IFC file."),
-        parameter=aproperty
-    )
-    # the pset name is missing in the failing message, but it is in the step test name

src/ifcclash/ifcclash/collider.py

@@ -0,0 +1,96 @@
+import hppfcl
+import numpy as np
+from aabbtree import AABB
+from aabbtree import AABBTree
+
+
+class Collider:
+    def __init__(self):
+        self.groups = {}
+
+    def create_group(self, name):
+        self.groups[name] = {"tree": AABBTree(), "objects": {}}
+
+    def create_object(self, group_name, id, shape):
+        obj = hppfcl.CollisionObject(
+            self.create_bvh(shape.geometry), self.create_transform(shape.transformation.matrix.data)
+        )
+        aabb = obj.getAABB()
+        c = aabb.center()
+        x = aabb.width()
+        y = aabb.height()
+        z = aabb.depth()
+        aabb = AABB([(c[0] - x / 2, c[0] + x / 2), (c[1] - y / 2, c[1] + y / 2), (c[2] - z / 2, c[2] + z / 2)])
+        self.groups[group_name]["tree"].add(aabb, id)
+        self.groups[group_name]["objects"][id] = (aabb, obj)
+
+    def collide_internal(self, name):
+        print('starting internal collision')
+        return self.collide_narrowphase(self.collide_broadphase(name, name))
+
+    def collide_group(self, name1, name2):
+        print('starting group collision')
+        return self.collide_narrowphase(self.collide_broadphase(name1, name2))
+
+    def collide_broadphase(self, name1, name2):
+        print('Begin broad phase')
+        potential_collisions = []
+        checked_collisions = set()
+        i = 0
+        for id, obj_data in self.groups[name1]["objects"].items():
+            aabb, obj = obj_data
+            collision_stack = [self.groups[name2]["tree"]]
+            checked_collisions.add(id)
+            i += 1
+            while i % 1000 == 0:
+                print(i, '...')
+            while collision_stack:
+                node = collision_stack.pop()
+                if node.value == id or node.value in checked_collisions:
+                    continue
+                if node.does_overlap(aabb):
+                    if node.is_leaf:
+                        potential_collisions.append(
+                            {
+                                "id1": id,
+                                "obj1": obj,
+                                "id2": node.value,
+                                "obj2": self.groups[name2]["objects"][node.value][1],
+                            }
+                        )
+                    else:
+                        collision_stack.append(node.left)
+                        collision_stack.append(node.right)
+        return potential_collisions
+
+    def collide_narrowphase(self, potential_collisions):
+        print('Begin narrow phase')
+        collisions = []
+        for data in potential_collisions:
+            result = hppfcl.CollisionResult()
+            hppfcl.collide(data["obj1"], data["obj2"], hppfcl.CollisionRequest(), result)
+            if result.isCollision():
+                collisions.append({"id1": data["id1"], "id2": data["id2"], "collision": result})
+                print({"id1": data["id1"], "id2": data["id2"], "collision": result})
+        return collisions
+
+    def create_transform(self, m):
+        mat = np.array([[m[0], m[3], m[6], m[9]], [m[1], m[4], m[7], m[10]], [m[2], m[5], m[8], m[11]], [0, 0, 0, 1]])
+        mat.transpose()
+        return hppfcl.Transform3f(mat[:3, :3], mat[:3, 3])
+
+    def create_bvh(self, mesh):
+        v = mesh.verts
+        f = mesh.faces
+        mesh_verts = np.array([[v[i], v[i + 1], v[i + 2]] for i in range(0, len(v), 3)])
+        mesh_faces = [(int(f[i]), int(f[i + 1]), int(f[i + 2])) for i in range(0, len(f), 3)]
+
+        bvh = hppfcl.BVHModelOBB()
+        bvh.beginModel(num_tris=len(mesh.faces), num_vertices=len(mesh_verts))
+        vertices = hppfcl.StdVec_Vec3f()
+        [vertices.append(v) for v in mesh_verts]
+        triangles = hppfcl.StdVec_Triangle()
+        [triangles.append(hppfcl.Triangle(f[0], f[1], f[2])) for f in mesh_faces]
+        bvh.addSubModel(vertices, triangles)
+        bvh.endModel()
+        return bvh

src/ifcclash/ifcclash/ifcclash.py

@@ -0,0 +1,302 @@
+#!/usr/bin/env python3
+
+import ifcopenshell
+import ifcopenshell.geom
+import ifcopenshell.util.selector
+import multiprocessing
+import numpy as np
+import json
+import sys
+import argparse
+import logging
+from . import collider
+
+
+class Clasher:
+    def __init__(self, settings):
+        self.settings = settings
+        self.geom_settings = ifcopenshell.geom.settings()
+        self.clash_sets = []
+        self.collider = collider.Collider()
+        self.selector = ifcopenshell.util.selector.Selector()
+        self.ifcs = {}
+
+    def clash(self):
+        existing_limit = sys.getrecursionlimit()
+        sys.setrecursionlimit(100000)
+        for clash_set in self.clash_sets:
+            self.process_clash_set(clash_set)
+        sys.setrecursionlimit(existing_limit)
+
+    def process_clash_set(self, clash_set):
+        print("proccessings", clash_set)
+        self.collider.create_group("a")
+        for source in clash_set["a"]:
+            self.add_collision_objects(
+                "a", self.load_ifc(source["file"]), source.get("mode", None), source.get("selector", None)
+            )
+
+        if "b" in clash_set:
+            self.collider.create_group("b")
+            for source in clash_set["b"]:
+                self.add_collision_objects(
+                    "b", self.load_ifc(source["file"]), source.get("mode", None), source.get("selector", None)
+                )
+            results = self.collider.collide_group("a", "b")
+        else:
+            results = self.collider.collide_internal("a")
+
+        for result in results:
+            print("*" * 10)
+            print("Is Collision:", result["collision"].isCollision())
+            print(result["id1"], result["id2"])
+            print("Number of contacts:", result["collision"].numContacts())
+            for contact in result["collision"].getContacts():
+                print(contact)
+
+    def load_ifc(self, path):
+        ifc = self.ifcs.get(path, None)
+        if not ifc:
+            ifc = ifcopenshell.open(path)
+            self.ifcs[path] = ifc
+        return ifc
+
+    def add_collision_objects(self, name, ifc_file, mode=None, selector=None):
+        print('adding collision objects', name)
+        if not mode:
+            iterator = ifcopenshell.geom.iterator(
+                self.geom_settings,
+                ifc_file,
+                multiprocessing.cpu_count(),
+                exclude=(ifc_file.by_type("IfcSpatialStructureElement")),
+            )
+        elif mode == "e":
+            iterator = ifcopenshell.geom.iterator(
+                self.geom_settings,
+                ifc_file,
+                multiprocessing.cpu_count(),
+                exclude=selector.parse(ifc_file, selector),
+            )
+        elif mode == "i":
+            iterator = ifcopenshell.geom.iterator(
+                self.geom_settings,
+                ifc_file,
+                multiprocessing.cpu_count(),
+                include=selector.parse(ifc_file, selector),
+            )
+        valid_file = iterator.initialize()
+        if not valid_file:
+            return False
+        old_progress = -1
+        while True:
+            shape = iterator.get()
+            self.collider.create_object(name, shape.guid, shape)
+            if not iterator.next():
+                break
+
+    def export(self):
+        if len(self.settings.output) > 4 and self.settings.output[-4:] == ".bcf":
+            return self.export_bcfxml()
+        self.export_json()
+
+    def export_bcfxml(self):
+        import bcf
+        import bcf.bcfxml
+
+        for i, clash_set in enumerate(self.clash_sets):
+            bcfxml = bcf.bcfxml.BcfXml()
+            bcfxml.new_project()
+            bcfxml.project.name = clash_set["name"]
+            bcfxml.edit_project()
+            for key, clash in clash_set["clashes"].items():
+                topic = bcf.data.Topic()
+                topic.title = "{}/{} and {}/{}".format(
+                    clash["a_ifc_class"], clash["a_name"], clash["b_ifc_class"], clash["b_name"]
+                )
+                topic = bcfxml.add_topic(topic)
+                viewpoint = bcf.data.Viewpoint()
+                viewpoint.perspective_camera = bcf.data.PerspectiveCamera()
+                position = np.array(clash["position"])
+                point = position + np.array((5, 5, 5))  # Dumb, but works!
+                viewpoint.perspective_camera.camera_view_point.x = point[0]
+                viewpoint.perspective_camera.camera_view_point.y = point[1]
+                viewpoint.perspective_camera.camera_view_point.z = point[2]
+                mat = self.get_track_to_matrix(point, position)
+                viewpoint.perspective_camera.camera_direction.x = mat[0][2] * -1
+                viewpoint.perspective_camera.camera_direction.y = mat[1][2] * -1
+                viewpoint.perspective_camera.camera_direction.z = mat[2][2] * -1
+                viewpoint.perspective_camera.camera_up_vector.x = mat[0][1]
+                viewpoint.perspective_camera.camera_up_vector.y = mat[1][1]
+                viewpoint.perspective_camera.camera_up_vector.z = mat[2][1]
+                viewpoint.components = bcf.data.Components()
+                c1 = bcf.data.Component()
+                c1.ifc_guid = clash["a_global_id"]
+                c2 = bcf.data.Component()
+                c2.ifc_guid = clash["b_global_id"]
+                viewpoint.components.selection.append(c1)
+                viewpoint.components.selection.append(c2)
+                viewpoint.components.visibility = bcf.data.ComponentVisibility()
+                viewpoint.components.visibility.default_visibility = True
+                viewpoint.snapshot = self.get_viewpoint_snapshot(viewpoint, mat)
+                bcfxml.add_viewpoint(topic, viewpoint)
+            if i == 0:
+                bcfxml.save_project(self.settings.output)
+            else:
+                bcfxml.save_project(self.settings.output + f".{i}")
+
+    def get_viewpoint_snapshot(self, viewpoint, mat):
+        return None  # Possible to overload this function in a GUI application if used as a library
+
+    # https://blender.stackexchange.com/questions/68834/recreate-to-track-quat-with-two-vectors-using-python/141706#141706
+    def get_track_to_matrix(self, camera_position, target_position):
+        camera_direction = camera_position - target_position
+        camera_direction = camera_direction / np.linalg.norm(camera_direction)
+        camera_right = np.cross(np.array([0.0, 0.0, 1.0]), camera_direction)
+        camera_right = camera_right / np.linalg.norm(camera_right)
+        camera_up = np.cross(camera_direction, camera_right)
+        camera_up = camera_up / np.linalg.norm(camera_up)
+        rotation_transform = np.zeros((4, 4))
+        rotation_transform[0, :3] = camera_right
+        rotation_transform[1, :3] = camera_up
+        rotation_transform[2, :3] = camera_direction
+        rotation_transform[-1, -1] = 1
+        translation_transform = np.eye(4)
+        translation_transform[:3, -1] = -camera_position
+        look_at_transform = np.matmul(rotation_transform, translation_transform)
+        return np.linalg.inv(look_at_transform)
+
+    def export_json(self):
+        results = self.clash_sets.copy()
+        for result in results:
+            del result["a_cm"]
+            del result["b_cm"]
+            for ab in ["a", "b"]:
+                for data in result[ab]:
+                    if "ifc" in data:
+                        del data["ifc"]
+        with open(self.settings.output, "w", encoding="utf-8") as clashes_file:
+            json.dump(results, clashes_file, indent=4)
+
+    def get_element(self, clash_group, global_id):
+        for data in clash_group:
+            try:
+                element = data["ifc"].by_guid(global_id)
+                if element:
+                    return element
+            except:
+                pass
+
+    def smart_group_clashes(self, clash_sets, max_clustering_distance):
+        from sklearn.cluster import OPTICS
+        from collections import defaultdict
+
+        count_of_input_clashes = 0
+        count_of_clash_sets = 0
+        count_of_smart_groups = 0
+        count_of_final_clash_sets = 0
+
+        count_of_clash_sets = len(clash_sets)
+
+        for clash_set in clash_sets:
+            if not "clashes" in clash_set.keys():
+                print(f"Skipping clash set [{clash_set['name']}] since it contains no clash results.")
+                continue
+            clashes = clash_set["clashes"]
+            if len(clashes) == 0:
+                print(f"Skipping clash set [{clash_set['name']}] since it contains no clash results.")
+                continue
+
+            count_of_input_clashes += len(clashes)
+
+            positions = []
+            for clash in clashes.values():
+                positions.append(clash["position"])
+
+            data = np.array(positions)
+
+            # INPUTS
+            # set the desired maximum distance between the grouped points
+            if max_clustering_distance > 0:
+                max_distance_between_grouped_points = max_clustering_distance
+            else:
+                max_distance_between_grouped_points = 3
+
+            model = OPTICS(min_samples=2, max_eps=max_distance_between_grouped_points)
+            model.fit_predict(data)
+            pred = model.fit_predict(data)
+
+            # Insert the smart groups into the clashes
+            if len(pred) == len(clashes.values()):
+                i = 0
+                for clash in clashes.values():
+                    int_prediction = int(pred[i])
+                    if int_prediction == -1:
+                        # ungroup this clash since it's a single clash that we were not able to group.
+                        new_clash_group_number = np.amax(pred).item() + 1 + i
+                        clash["smart_group"] = new_clash_group_number
+                    else:
+                        clash["smart_group"] = int_prediction
+                    i += 1
+
+        # Create JSON with smart_groups that contain GlobalIDs
+        output_clash_sets = defaultdict(list)
+        for clash_set in clash_sets:
+            if not "clashes" in clash_set.keys():
+                continue
+            smart_groups = defaultdict(list)
+            for clash_id, content in clash_set["clashes"].items():
+                if "smart_group" in content:
+                    object_id_list = list()
+                    # Clash has been grouped, let's extract it.
+                    object_id_list.append(content["a_global_id"])
+                    object_id_list.append(content["b_global_id"])
+                    smart_groups[content["smart_group"]].append(object_id_list)
+            count_of_smart_groups += len(smart_groups)
+            output_clash_sets[clash_set["name"]].append(smart_groups)
+
+        # Rename the clash groups to something more sensible
+        for clash_set, smart_groups in output_clash_sets.items():
+            clash_set_name = clash_set
+            # Only select the clashes that correspond to the actively selected IFC Clash Set
+            i = 1
+            new_smart_group_name = ""
+            for smart_group, global_id_pairs in list(smart_groups[0].items()):
+                new_smart_group_name = f"{clash_set_name} - {i}"
+                smart_groups[0][new_smart_group_name] = smart_groups[0].pop(smart_group)
+                i += 1
+
+        count_of_final_clash_sets = len(output_clash_sets)
+        print(
+            f"Took {count_of_input_clashes} clashes in {count_of_clash_sets} clash sets and turned",
+            f"them into {count_of_smart_groups} smart groups in {count_of_final_clash_sets} clash sets",
+        )
+
+        return output_clash_sets
+
+
+class ClashSettings:
+    def __init__(self):
+        self.logger = None
+        self.output = "clashes.json"
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Clashes geometry between two IFC files")
+    parser.add_argument("input", type=str, help="A JSON dataset describing a series of clashsets")
+    parser.add_argument(
+        "-o", "--output", type=str, help="The JSON diff file to output. Defaults to output.json", default="output.json"
+    )
+    args = parser.parse_args()
+
+    settings = ClashSettings()
+    settings.output = args.output
+    settings.logger = logging.getLogger("Clash")
+    settings.logger.setLevel(logging.DEBUG)
+    handler = logging.StreamHandler(sys.stdout)
+    handler.setLevel(logging.DEBUG)
+    settings.logger.addHandler(handler)
+    ifc_clasher = Clasher(settings)
+    with open(args.input, "r") as clash_sets_file:
+        ifc_clasher.clash_sets = json.loads(clash_sets_file.read())
+    ifc_clasher.clash()
+    ifc_clasher.export()