First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
4547 changed files with 1170384 additions and 0 deletions
@@ -0,0 +1,55 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2022 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import ifcopenshell
+import ifcopenshell.util.element
+
+
+def disconnect_element(
+    file: ifcopenshell.file,
+    relating_element: ifcopenshell.entity_instance,
+    related_element: ifcopenshell.entity_instance,
+) -> None:
+    # TODO: arguments relating_element, related_element probably
+    # should be renamed to element1, element2
+    # as api call doesn't really treat them as "relating" and "related"
+    # and just purging all connections between them
+    incompatible_connections = []
+
+    for rel in relating_element.ConnectedTo:
+        if rel.is_a() == "IfcRelConnectsElements" and rel.RelatedElement == related_element:
+            incompatible_connections.append(rel)
+
+    for rel in relating_element.ConnectedFrom:
+        if rel.is_a() == "IfcRelConnectsElements" and rel.RelatingElement == related_element:
+            incompatible_connections.append(rel)
+
+    for rel in related_element.ConnectedTo:
+        if rel.is_a() == "IfcRelConnectsElements" and rel.RelatedElement == relating_element:
+            incompatible_connections.append(rel)
+
+    for rel in related_element.ConnectedFrom:
+        if rel.is_a() == "IfcRelConnectsElements" and rel.RelatingElement == relating_element:
+            incompatible_connections.append(rel)
+
+    if incompatible_connections:
+        for connection in set(incompatible_connections):
+            history = connection.OwnerHistory
+            file.remove(connection)
+            if history:
+                ifcopenshell.util.element.remove_deep2(file, history)