First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021-2022 Dion Moult <dion@thinkmoult.com>, Yassine Oualid <yassine@sigmadimensions.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.api.nest
+import ifcopenshell.api.owner
+import ifcopenshell.util.element
+
+
+def change_nest(
+    file: ifcopenshell.file, item: ifcopenshell.entity_instance, new_parent: ifcopenshell.entity_instance
+) -> None:
+    """Assigns a cost item to a new parent cost item"""
+    if not item.Nests:
+        return
+    nests = item.Nests[0]
+    related_objects = list(nests.RelatedObjects)
+    related_objects.remove(item)
+    if related_objects:
+        nests.RelatedObjects = related_objects
+        ifcopenshell.api.owner.update_owner_history(file, element=nests)
+    else:
+        history = nests.OwnerHistory
+        file.remove(nests)
+        if history:
+            ifcopenshell.util.element.remove_deep2(file, history)
+    ifcopenshell.api.nest.assign_object(file, related_objects=[item], relating_object=new_parent)