# IfcOpenShell - IFC toolkit and geometry engine # Copyright (C) 2021 Dion Moult # # 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 . import numpy import pytest import test.bootstrap import ifcopenshell.api import ifcopenshell.util.placement class TestEditObjectPlacement(test.bootstrap.IFC4): def test_attemping_to_edit_the_placement_of_an_invalid_element(self): project = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject") result = ifcopenshell.api.run("geometry.edit_object_placement", self.file, product=project) assert result is None def test_setting_an_object_placement(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="IfcWall") matrix = numpy.array( ( (1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix.copy(), is_si=False ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), matrix) def test_setting_an_object_placement_using_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="IfcWall") matrix = numpy.array( ( (1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) matrix_millimeters = 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("geometry.edit_object_placement", self.file, product=element, matrix=matrix, is_si=True) assert numpy.array_equal( ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), matrix_millimeters ) def test_changing_an_object_placement(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="IfcWall") matrix1 = numpy.array( ( (1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) matrix2 = numpy.array( ( (1.0, 0.0, 0.0, 4.0), (0.0, 1.0, 0.0, 5.0), (0.0, 0.0, 1.0, 6.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix1.copy(), is_si=False ) created_element_ids = [e.id() for e in self.file.traverse(element.ObjectPlacement)] ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix2.copy(), is_si=False ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), matrix2) for element_id in created_element_ids: with pytest.raises(RuntimeError): self.file.by_id(element_id) def test_changing_an_object_placement_used_by_other_products(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="IfcWall") element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall") matrix1 = numpy.array( ( (1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) matrix2 = numpy.array( ( (1.0, 0.0, 0.0, 4.0), (0.0, 1.0, 0.0, 5.0), (0.0, 0.0, 1.0, 6.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix1.copy(), is_si=False ) element2.ObjectPlacement = element.ObjectPlacement ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix2.copy(), is_si=False ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), matrix2) assert element.ObjectPlacement != element2.ObjectPlacement def test_changing_an_object_placement_shared_by_its_parent(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") ifcopenshell.api.run("spatial.assign_container", self.file, product=subelement, relating_structure=element) matrix1 = numpy.array( ( (1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) matrix2 = numpy.array( ( (1.0, 0.0, 0.0, 4.0), (0.0, 1.0, 0.0, 5.0), (0.0, 0.0, 1.0, 6.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix1.copy(), is_si=False ) subelement.ObjectPlacement = element.ObjectPlacement ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=subelement, matrix=matrix2.copy(), is_si=False ) assert subelement.ObjectPlacement.PlacementRelTo != subelement.ObjectPlacement assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), matrix2) assert element.ObjectPlacement != subelement.ObjectPlacement def test_changing_placements_relative_to_a_spatial_container(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, 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (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 ) 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 def test_changing_placements_relative_to_an_aggregate(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") subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcBeam") matrix = 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run("aggregate.assign_object", self.file, product=subelement, relating_object=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 ) 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 def test_changing_placements_relative_to_a_nest_parent(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="IfcChiller") subelement = ifcopenshell.api.run("system.add_port", self.file, element=element) matrix = 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) 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 ) 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 def test_changing_placements_relative_to_a_voided_element(self): ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject") ifcopenshell.api.run("unit.assign_unit", self.file) site = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite") element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall") subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcOpeningElement") ifcopenshell.api.run("spatial.assign_container", self.file, product=element, relating_structure=site) matrix = 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run("void.add_opening", self.file, opening=subelement, element=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 ) 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 def test_changing_placements_relative_to_an_opening(self): ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProject") ifcopenshell.api.run("unit.assign_unit", self.file) site = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSite") wall = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall") element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcOpeningElement") subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcDoor") ifcopenshell.api.run("spatial.assign_container", self.file, product=wall, relating_structure=site) ifcopenshell.api.run("spatial.assign_container", self.file, product=subelement, relating_structure=site) matrix = 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) ifcopenshell.api.run("void.add_opening", self.file, opening=element, element=wall) ifcopenshell.api.run("void.add_filling", self.file, element=subelement, opening=element) ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=site, matrix=numpy.eye(4), is_si=False ) ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=wall, matrix=numpy.eye(4), is_si=False ) 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 ) 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 not site.ObjectPlacement.PlacementRelTo assert wall.ObjectPlacement.PlacementRelTo == site.ObjectPlacement assert element.ObjectPlacement.PlacementRelTo == wall.ObjectPlacement assert subelement.ObjectPlacement.PlacementRelTo == element.ObjectPlacement def test_changing_placements_relative_to_a_projected_element(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="IfcWall") subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcProjectionElement") matrix = 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) self.file.create_entity( "IfcRelProjectsElement", **{ "GlobalId": ifcopenshell.guid.new(), "RelatingElement": element, "RelatedFeatureElement": subelement, } ) 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 ) 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 def test_changing_placements_without_affecting_children(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, 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (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=submatrix.copy(), is_si=False ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), submatrix) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), submatrix) assert subelement.ObjectPlacement.PlacementRelTo == element.ObjectPlacement def test_changing_placements_with_affecting_children(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, 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) shifted_submatrix = numpy.array( ( (1.0, 0.0, 0.0, 1.0), (0.0, 1.0, 0.0, 3.0), (0.0, 0.0, 1.0, 5.0), (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=submatrix.copy(), is_si=False, should_transform_children=True, ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), submatrix) assert numpy.array_equal( 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 def test_changing_placements_always_affecting_child_ports_as_a_special_case(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="IfcChiller") subelement = ifcopenshell.api.run("system.add_port", self.file, element=element) matrix = numpy.eye(4) matrix[:3, 3] = (1, 1, 1) submatrix = numpy.eye(4) submatrix[:3, 3] = (1, 2, 3) shifted_submatrix = numpy.eye(4) shifted_submatrix[:3, 3] = (1, 3, 5) previous_placement_id = ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix.copy(), is_si=False ).id() 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=submatrix.copy(), is_si=False, should_transform_children=False, ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), submatrix) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), shifted_submatrix) assert subelement.ObjectPlacement.PlacementRelTo == element.ObjectPlacement # old placement should be removed to avoid orphaned entities with pytest.raises(RuntimeError): self.file.by_id(previous_placement_id) def test_changing_placements_always_affecting_child_features_as_a_special_case(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="IfcWall") subelement = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcOpeningElement") matrix = numpy.eye(4) matrix[:3, 3] = (1, 1, 1) submatrix = numpy.eye(4) submatrix[:3, 3] = (1, 2, 3) shifted_submatrix = numpy.eye(4) shifted_submatrix[:3, 3] = (1, 3, 5) ifcopenshell.api.run("void.add_opening", self.file, opening=subelement, element=element) previous_placement_id = ifcopenshell.api.run( "geometry.edit_object_placement", self.file, product=element, matrix=matrix.copy(), is_si=False ).id() 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=submatrix.copy(), is_si=False, should_transform_children=False, ) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement), submatrix) assert numpy.array_equal(ifcopenshell.util.placement.get_local_placement(subelement.ObjectPlacement), shifted_submatrix) assert subelement.ObjectPlacement.PlacementRelTo == element.ObjectPlacement # old placement should be removed to avoid orphaned entities with pytest.raises(RuntimeError): self.file.by_id(previous_placement_id) class TestEditObjectPlacementIFC2X3(test.bootstrap.IFC2X3): def test_changing_placements_relative_to_a_distribution_element(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="IfcFlowSegment") subelement = ifcopenshell.api.run("system.add_port", self.file, element=element) matrix = 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, 1.0), (0.0, 1.0, 0.0, 2.0), (0.0, 0.0, 1.0, 3.0), (0.0, 0.0, 0.0, 1.0), ) ) 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 ) 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