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Fix bug where subelement coordinates were incorrectly calculated in non SI units

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This commit is contained in:
Dion Moult
2021-11-17 16:22:23 +11:00
parent ddb8abff0f
commit 18719c16df
2 changed files with 44 additions and 1 deletions
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src/ifcopenshell-python/test/api/geometry/test_edit_object_placement.py
+43
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@@ -367,3 +367,46 @@ class TestEditObjectPlacement(test.bootstrap.IFC4):
ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), shifted_submatrix
)
assert subelement.ObjectPlacement.PlacementRelTo == element.ObjectPlacement
def test_changing_placements_with_children_using_non_si_units(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="IfcBuilding")
subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
matrix = numpy.array(
(
(1.0, 0.0, 0.0, 1000.0),
(0.0, 1.0, 0.0, 1000.0),
(0.0, 0.0, 1.0, 1000.0),
(0.0, 0.0, 0.0, 1.0),
)
)
matrix_si = 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),
)
)
submatrix = numpy.array(
(
(1.0, 0.0, 0.0, 1000.0),
(0.0, 1.0, 0.0, 2000.0),
(0.0, 0.0, 1.0, 3000.0),
(0.0, 0.0, 0.0, 1.0),
)
)
ifcopenshell.api.run("spatial.assign_container", self.file, product=subelement, relating_structure=element)
ifcopenshell.api.run(
"geometry.edit_object_placement", self.file, product=element, matrix=matrix.copy(), is_si=False
)
ifcopenshell.api.run(
"geometry.edit_object_placement", self.file, product=subelement, matrix=submatrix.copy(), is_si=False
)
ifcopenshell.api.run(
"geometry.edit_object_placement", self.file, product=element, matrix=matrix_si.copy(), is_si=True
)
assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), matrix)
assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), submatrix)
assert subelement.ObjectPlacement.PlacementRelTo == element.ObjectPlacement