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Changing aggregation now ensures spatial containment is mutually exclusive to prevent invalid IFC data

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This commit is contained in:
Dion Moult
2021-10-06 12:52:01 +11:00
parent f21005c29e
commit 3aa36dd4b7
7 changed files with 141 additions and 7 deletions
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src/ifcopenshell-python/test/api/aggregate/test_assign_object.py
+101
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@@ -0,0 +1,101 @@
import numpy
import pytest
import test.bootstrap
import ifcopenshell.api
import ifcopenshell.util.element
import ifcopenshell.util.placement
class TestAssignObject(test.bootstrap.IFC4):
def test_assigning_a_container(self):
element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
rel = ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element)
assert ifcopenshell.util.element.get_aggregate(subelement) == element
assert rel.is_a("IfcRelAggregates")
def test_doing_nothing_if_the_aggregate_is_already_assigned(self):
element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element)
total_elements = len([e for e in self.file])
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element)
assert len([e for e in self.file]) == total_elements
def test_that_old_aggregate_relationships_are_updated_if_they_still_have_elements(self):
element1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
subelement1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
subelement2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement1, relating_object=element1)
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement2, relating_object=element1)
rel = subelement1.Decomposes[0]
assert len(rel.RelatedObjects) == 2
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement1, relating_object=element2)
assert len(rel.RelatedObjects) == 1
def test_that_old_aggregate_relationships_are_purged_if_no_more_elements_are_contained(self):
element1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
subelement1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement1, relating_object=element1)
rel_id = subelement1.Decomposes[0].id()
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement1, relating_object=element2)
with pytest.raises(RuntimeError):
self.file.by_id(rel_id)
def test_assigning_a_container_does_not_shift_object_placements(self):
ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject")
ifcopenshell.api.run("unit.assign_unit", self.file)
element1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element1)
matrix1 = numpy.array(
(
(1.0, 0.0, 0.0, 1.0),
(0.0, 1.0, 0.0, 1.0),
(0.0, 0.0, 1.0, 1.0),
(0.0, 0.0, 0.0, 1.0),
)
)
matrix2 = numpy.array(
(
(1.0, 0.0, 0.0, 2.0),
(0.0, 1.0, 0.0, 2.0),
(0.0, 0.0, 1.0, 2.0),
(0.0, 0.0, 0.0, 1.0),
)
)
ifcopenshell.api.run(
"geometry.edit_object_placement", self.file, product=element1, matrix=matrix1.copy(), is_si=False
)
ifcopenshell.api.run(
"geometry.edit_object_placement", self.file, product=element2, matrix=matrix2.copy(), is_si=False
)
ifcopenshell.api.run(
"geometry.edit_object_placement", self.file, product=subelement, matrix=matrix1.copy(), is_si=False
)
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element2)
assert subelement.ObjectPlacement.PlacementRelTo.PlacesObject[0] == element2
assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), matrix1)
def test_not_updating_placement_if_placement_is_not_relative(self):
ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject")
ifcopenshell.api.run("unit.assign_unit", self.file)
element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
placement = self.file.createIfcGridPlacement()
subelement.ObjectPlacement = placement
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element)
assert subelement.ObjectPlacement == placement
def test_removing_containment_if_it_exists(self):
ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject")
ifcopenshell.api.run("unit.assign_unit", self.file)
element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcElementAssembly")
container = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuildingStorey")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
ifcopenshell.api.run("spatial.assign_container", self.file, product=subelement, relating_structure=container)
ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=element)
assert not ifcopenshell.util.element.get_container(subelement, should_get_direct=True)
src/ifcopenshell-python/test/api/spatial/test_assign_container.py
+4 -1
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@@ -10,8 +10,11 @@ class TestAssignContainer(test.bootstrap.IFC4):
def test_assigning_a_container(self):
element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
ifcopenshell.api.run("spatial.assign_container", self.file, product=subelement, relating_structure=element)
rel = ifcopenshell.api.run(
"spatial.assign_container", self.file, product=subelement, relating_structure=element
)
assert ifcopenshell.util.element.get_container(subelement) == element
assert rel.is_a("IfcRelContainedInSpatialStructure")
def test_doing_nothing_if_the_container_is_already_assigned(self):
element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBuilding")