See #1676. You can now duplicate space boundaries.

src/ifcopenshell-python/ifcopenshell/api/boundary/copy_boundary.py

@@ -0,0 +1,47 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2023 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.util.element
+
+
+class Usecase:
+    def __init__(self, file, boundary=None):
+        """Copies a space boundary
+
+        :param boundary: The IfcRelSpaceBoundary you want to copy.
+        :type boundary: ifcopenshell.entity_instance.entity_instance
+        :return: None
+        :rtype: None
+
+        Example:
+
+            # A boring boundary with no geometry. Note that this boundary is
+            # invalid and does not relate to any space or building element.
+            boundary = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcRelSpaceBoundary")
+
+            # And now we have two
+            boundary_copy = ifcopenshell.api.run("boundary.copy_boundary", model, boundary=boundary)
+        """
+        self.file = file
+        self.settings = {"boundary": boundary}
+
+    def execute(self):
+        result = ifcopenshell.util.element.copy(self.file, self.settings["boundary"])
+        if result.ConnectionGeometry:
+            result.ConnectionGeometry = ifcopenshell.util.element.copy_deep(self.file, result.ConnectionGeometry)
+        return result

src/ifcopenshell-python/ifcopenshell/api/boundary/remove_boundary.py

@@ -38,7 +38,7 @@ class Usecase:
             boundary = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcRelSpaceBoundary")
 
             # Let's remove it!
-            ifcopenshell.api.run("grid.remove_grid_axis", model, axis=axis_2)
+            ifcopenshell.api.run("boundary.remove_boundary", model, boundary=boundary)
         """
         self.file = file
         self.settings = {"boundary": boundary}

src/ifcopenshell-python/test/api/boundary/__init__.py

@@ -0,0 +1,17 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 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/>.

src/ifcopenshell-python/test/api/boundary/test_copy_boundary.py

@@ -0,0 +1,36 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2023 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 test.bootstrap
+import ifcopenshell.api
+
+
+class TestCopyBoundary(test.bootstrap.IFC4):
+    def test_run(self):
+        boundary = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcRelSpaceBoundary")
+        boundary2 = ifcopenshell.api.run("boundary.copy_boundary", self.file, boundary=boundary)
+        assert boundary2.is_a("IfcRelSpaceBoundary")
+        assert boundary2.GlobalId != boundary.GlobalId
+
+    def test_copying_connection_geometry(self):
+        geometry = self.file.createIfcConnectionSurfaceGeometry()
+        boundary = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcRelSpaceBoundary")
+        boundary.ConnectionGeometry = geometry
+        boundary2 = ifcopenshell.api.run("boundary.copy_boundary", self.file, boundary=boundary)
+        assert boundary2.ConnectionGeometry.is_a("IfcConnectionSurfaceGeometry")
+        assert boundary2.ConnectionGeometry != boundary.ConnectionGeometry