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Add feature to get parent of a particular IFC class

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This commit is contained in:
Dion Moult
2026-03-20 23:10:00 +11:00
parent 7b6e82a9cc
commit d0f20371bd
3 changed files with 50 additions and 6 deletions
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src/ifcopenshell-python/test/util/test_element.py
+30
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@@ -38,6 +38,7 @@ import ifcopenshell.api.sequence
import ifcopenshell.api.spatial
import ifcopenshell.api.style
import ifcopenshell.api.type
import ifcopenshell.api.feature
import ifcopenshell.guid
import ifcopenshell.util.element as subject
import test.bootstrap
@@ -891,6 +892,35 @@ class TestGetlayers(test.bootstrap.IFC4, TestGetlayersIFC2X3):
assert subject.get_layers(self.file, element) == [layer]
class TestGetParentIFC4(test.bootstrap.IFC4):
def test_getting_the_parent_of_an_element(self):
element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
building = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
ifcopenshell.api.spatial.assign_container(self.file, products=[element], relating_structure=building)
assert subject.get_parent(element) == building
def test_getting_the_specific_parent_of_an_element(self):
element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
building = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
storey = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuildingStorey")
ifcopenshell.api.aggregate.assign_object(self.file, products=[storey], relating_object=building)
ifcopenshell.api.spatial.assign_container(self.file, products=[element], relating_structure=storey)
assert subject.get_parent(element, ifc_class="IfcBuilding") == building
assert subject.get_parent(element, ifc_class="IfcSite") == None
def test_getting_the_specific_parent_of_an_element_via_voiding(self):
wall = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
building = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
ifcopenshell.api.spatial.assign_container(self.file, products=[wall], relating_structure=building)
opening = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcOpeningElement")
ifcopenshell.api.feature.add_feature(self.file, feature=opening, element=wall)
window = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWindow")
ifcopenshell.api.feature.add_filling(self.file, opening=opening, element=window)
assert subject.get_parent(window, ifc_class="IfcWall") == wall
assert subject.get_parent(window, ifc_class="IfcBuilding") == building
assert subject.get_parent(window, ifc_class="IfcSite") == None
class TestGetContainerIFC4(test.bootstrap.IFC4):
def test_getting_the_spatial_container_of_an_element(self):
element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")