profile.copy_profile

Fixes issue duplicated profile missing it's psets.

src/ifcopenshell-python/ifcopenshell/api/profile/__init__.py

@@ -26,6 +26,7 @@ from .. import wrap_usecases
 from .add_arbitrary_profile import add_arbitrary_profile
 from .add_arbitrary_profile_with_voids import add_arbitrary_profile_with_voids
 from .add_parameterized_profile import add_parameterized_profile
+from .copy_profile import copy_profile
 from .edit_profile import edit_profile
 from .remove_profile import remove_profile
 
@@ -35,6 +36,7 @@ __all__ = [
     "add_arbitrary_profile",
     "add_arbitrary_profile_with_voids",
     "add_parameterized_profile",
+    "copy_profile",
     "edit_profile",
     "remove_profile",
 ]

src/ifcopenshell-python/ifcopenshell/api/profile/copy_profile.py

@@ -0,0 +1,47 @@
+# 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/>.
+
+import ifcopenshell
+import ifcopenshell.util.element
+
+
+def copy_profile(file: ifcopenshell.file, profile: ifcopenshell.entity_instance) -> ifcopenshell.entity_instance:
+    """Copies a profile
+
+    All profile's psets are copied. The copied profile is not
+    associated to any elements.
+
+    :param profile: The IfcProfileDef to copy
+    :return: The new copy of the profile
+
+    Example:
+
+    .. code:: python
+
+        profile = ifcopenshell.api.profile.add_profile(model, ifc_class="IfcRectangleProfileDef")
+
+        # Let's duplicate the rectangle profile
+        profile_copy = ifcopenshell.api.profile.copy_profile(model, profile=profile)
+    """
+    new_profile = ifcopenshell.util.element.copy_deep(file, profile)
+    inverses = file.get_inverse(profile)
+    psets = [i for i in inverses if i.is_a("IfcProfileProperties")]
+    for pset in psets:
+        new_pset = ifcopenshell.util.element.copy_deep(file, pset, exclude=["IfcProfileDef"])
+        new_pset.ProfileDefinition = new_profile
+    return new_profile

src/ifcopenshell-python/ifcopenshell/api/pset/unshare_pset.py

@@ -85,6 +85,8 @@ def unshare_pset(
 
     pset_copies: list[ifcopenshell.entity_instance] = []
     for product in products:
+        # No need to consider about profile/material properties since
+        # they are assigned to 1 element directly and therefore cannot be shared.
         pset_copy = ifcopenshell.util.element.copy_deep(file, pset)
         pset_copies.append(pset_copy)
         ifcopenshell.api.pset.assign_pset(file, [product], pset_copy)

src/ifcopenshell-python/test/api/profile/test_copy_profile.py

@@ -0,0 +1,45 @@
+# 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 test.bootstrap
+import ifcopenshell.api.profile
+import ifcopenshell.api.pset
+import ifcopenshell.util.element
+
+
+class TestCopyProfileIFC2X3(test.bootstrap.IFC2X3):
+    def test_copy_profile(self):
+        profile = ifcopenshell.api.profile.add_parameterized_profile(self.file, "IfcRectangleProfileDef")
+        new_profile = ifcopenshell.api.profile.copy_profile(self.file, profile=profile)
+        assert new_profile.is_a("IfcRectangleProfileDef")
+        assert profile != new_profile
+        assert len(self.file.by_type("IfcRectangleProfileDef")) == 2
+
+    def test_copy_profile_with_pset(self):
+        profile = ifcopenshell.api.profile.add_parameterized_profile(self.file, "IfcRectangleProfileDef")
+        pset = ifcopenshell.api.pset.add_pset(self.file, product=profile, name="ProfilePset")
+        new_profile = ifcopenshell.api.profile.copy_profile(self.file, profile=profile)
+
+        assert len(self.file.by_type("IfcRectangleProfileDef")) == 2
+        assert len(psets := self.file.by_type("IfcProfileProperties")) == 2
+        assert ifcopenshell.util.element.get_elements_by_pset(pset) == {profile}
+        assert ifcopenshell.util.element.get_elements_by_pset(psets[1]) == {new_profile}
+
+
+class TestCopyProfileIFC4(test.bootstrap.IFC4, TestCopyProfileIFC2X3):
+    pass