mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
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Add api.structural.assign_product, assign_to_building, and api.geometry.add_topology_representation
assign_product creates IfcRelAssignsToProduct linking a structural member to a physical building element. assign_to_building creates IfcRelServicesBuildings linking a structural analysis model to a building. add_topology_representation creates IfcTopologyRepresentation for structural elements, inferring the representation type from the item class. Generated with the assistance of an AI coding tool.
This commit is contained in:
Bruno Postle
@@ -25,6 +25,7 @@ geometry extrusions).
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from .. import wrap_usecases
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from .add_axis_representation import add_axis_representation
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from .add_topology_representation import add_topology_representation
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from .add_boolean import add_boolean
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from .clip_solid import clip_solid
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from .clip_solid_bounded import clip_solid_bounded
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@@ -63,6 +64,7 @@ wrap_usecases(__path__, __name__)
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__all__ = [
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"add_axis_representation",
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"add_topology_representation",
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"add_boolean",
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"clip_solid",
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"clip_solid_bounded",
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@@ -0,0 +1,98 @@
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# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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||||
# GNU Lesser General Public License for more details.
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||||
#
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# You should have received a copy of the GNU Lesser General Public License
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||||
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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# This file was generated with the assistance of an AI coding tool.
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from typing import Optional
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import ifcopenshell
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_ITEM_TYPE_TO_REP_TYPE = {
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"IfcVertex": "Vertex",
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"IfcVertexPoint": "Vertex",
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"IfcEdge": "Edge",
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"IfcOrientedEdge": "Edge",
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"IfcEdgeCurve": "Edge",
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"IfcEdgeLoop": "Edge",
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"IfcPath": "Edge",
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"IfcFace": "Face",
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"IfcFaceSurface": "Face",
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"IfcAdvancedFace": "Face",
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"IfcClosedShell": "Face",
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"IfcOpenShell": "Face",
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"IfcConnectedFaceSet": "Face",
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}
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def add_topology_representation(
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file: ifcopenshell.file,
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context: ifcopenshell.entity_instance,
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item: ifcopenshell.entity_instance,
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representation_identifier: Optional[str] = None,
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representation_type: Optional[str] = None,
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) -> ifcopenshell.entity_instance:
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"""Adds an IfcTopologyRepresentation for a structural element
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Structural analysis elements (IfcStructuralSurfaceMember,
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IfcStructuralCurveMember) use topology representations rather than solid
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geometry. This is analogous to :func:`add_axis_representation` and
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:func:`add_profile_representation` but produces an
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IfcTopologyRepresentation instead of an IfcShapeRepresentation.
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The representation type ("Face", "Edge", "Vertex") is inferred from the
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item's IFC class if not provided explicitly.
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:param context: The IfcGeometricRepresentationContext for the
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representation, typically a Reference context.
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:param item: The IfcTopologicalRepresentationItem (e.g. IfcFaceSurface,
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IfcEdge) to include in the representation.
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:param representation_identifier: The RepresentationIdentifier string.
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Defaults to the context's ContextIdentifier.
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:param representation_type: The RepresentationType string ("Face",
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"Edge", "Vertex"). Inferred from item class if not given.
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:return: The newly created IfcTopologyRepresentation entity.
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Example:
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.. code:: python
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context = ifcopenshell.util.representation.get_context(
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model, "Model", "Reference", "GRAPH_VIEW")
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face = model.createIfcFaceSurface(bounds, surface, True)
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rep = ifcopenshell.api.geometry.add_topology_representation(
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model, context=context, item=face)
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ifcopenshell.api.geometry.assign_representation(
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model, product=member, representation=rep)
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"""
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if representation_identifier is None:
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representation_identifier = context.ContextIdentifier
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if representation_type is None:
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for ifc_class, rep_type in _ITEM_TYPE_TO_REP_TYPE.items():
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if item.is_a(ifc_class):
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representation_type = rep_type
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break
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else:
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representation_type = "Undefined"
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return file.createIfcTopologyRepresentation(
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context,
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representation_identifier,
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representation_type,
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[item],
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)
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@@ -30,7 +30,9 @@ from .add_structural_load import add_structural_load
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from .add_structural_load_case import add_structural_load_case
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from .add_structural_load_group import add_structural_load_group
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from .add_structural_member_connection import add_structural_member_connection
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from .assign_product import assign_product
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from .assign_structural_analysis_model import assign_structural_analysis_model
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from .assign_to_building import assign_to_building
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from .edit_structural_analysis_model import edit_structural_analysis_model
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from .edit_structural_boundary_condition import edit_structural_boundary_condition
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from .edit_structural_connection_cs import edit_structural_connection_cs
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@@ -57,7 +59,9 @@ __all__ = [
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"add_structural_load_case",
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"add_structural_load_group",
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"add_structural_member_connection",
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"assign_product",
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"assign_structural_analysis_model",
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"assign_to_building",
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"edit_structural_analysis_model",
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"edit_structural_boundary_condition",
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"edit_structural_connection_cs",
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@@ -0,0 +1,64 @@
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# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
|
||||
#
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||||
# You should have received a copy of the GNU Lesser General Public License
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||||
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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# This file was generated with the assistance of an AI coding tool.
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import ifcopenshell
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import ifcopenshell.api.root
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def assign_product(
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file: ifcopenshell.file,
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relating_product: ifcopenshell.entity_instance,
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related_object: ifcopenshell.entity_instance,
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) -> ifcopenshell.entity_instance:
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"""Links an object to a product via IfcRelAssignsToProduct
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Typically used to associate a physical building element with a structural
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analysis member (IfcStructuralSurfaceMember, IfcStructuralCurveMember) so
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that analysis results can be traced back to the physical model.
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:param relating_product: The IfcProduct that the object is assigned to,
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typically an IfcStructuralMember.
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:param related_object: The IfcObjectDefinition being assigned, typically
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a physical building element such as an IfcWall or IfcSlab.
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:return: The IfcRelAssignsToProduct relationship.
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Example:
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.. code:: python
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wall = ifcopenshell.api.root.create_entity(model, ifc_class="IfcWall")
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member = ifcopenshell.api.root.create_entity(
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model, ifc_class="IfcStructuralSurfaceMember")
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ifcopenshell.api.structural.assign_product(model,
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relating_product=member, related_object=wall)
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"""
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for rel in relating_product.ReferencedBy or []:
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if not rel.is_a("IfcRelAssignsToProduct"):
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continue
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if related_object in rel.RelatedObjects:
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return rel
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related_objects = list(rel.RelatedObjects)
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related_objects.append(related_object)
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rel.RelatedObjects = related_objects
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return rel
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rel = ifcopenshell.api.root.create_entity(file, ifc_class="IfcRelAssignsToProduct")
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rel.RelatingProduct = relating_product
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rel.RelatedObjects = [related_object]
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return rel
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@@ -0,0 +1,64 @@
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# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# 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
|
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# (at your option) any later version.
|
||||
#
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||||
# IfcOpenShell is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
|
||||
#
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||||
# You should have received a copy of the GNU Lesser General Public License
|
||||
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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# This file was generated with the assistance of an AI coding tool.
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import ifcopenshell
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import ifcopenshell.api.owner
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import ifcopenshell.guid
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def assign_to_building(
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file: ifcopenshell.file,
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structural_analysis_model: ifcopenshell.entity_instance,
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building: ifcopenshell.entity_instance,
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) -> ifcopenshell.entity_instance:
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"""Associates a structural analysis model with a building via IfcRelServicesBuildings
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The existing :func:`assign_structural_analysis_model` handles
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IfcRelAssignsToGroup (linking structural members to the analysis model).
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This function handles the separate model-to-building relationship, which
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records which building the structural analysis model serves.
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:param structural_analysis_model: The IfcStructuralAnalysisModel to
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associate with the building.
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:param building: The IfcBuilding (or other IfcSpatialStructureElement)
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that the structural analysis model serves.
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:return: The IfcRelServicesBuildings relationship.
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Example:
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.. code:: python
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building = ifcopenshell.util.selector.filter_elements(model, "IfcBuilding")[0]
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model_ = ifcopenshell.api.structural.add_structural_analysis_model(model)
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ifcopenshell.api.structural.assign_to_building(model,
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structural_analysis_model=model_, building=building)
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"""
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for rel in structural_analysis_model.ServicesBuildings or []:
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if building in rel.RelatedBuildings:
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return rel
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rel.RelatedBuildings = list(rel.RelatedBuildings) + [building]
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return rel
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return file.create_entity(
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"IfcRelServicesBuildings",
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ifcopenshell.guid.new(),
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OwnerHistory=ifcopenshell.api.owner.create_owner_history(file),
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RelatingSystem=structural_analysis_model,
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RelatedBuildings=[building],
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)
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@@ -0,0 +1,82 @@
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# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
|
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#
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# This file is part of IfcOpenShell.
|
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#
|
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# 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/>.
|
||||
# This file was generated with the assistance of an AI coding tool.
|
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import ifcopenshell.api.context
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import ifcopenshell.api.geometry
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import ifcopenshell.api.root
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import test.bootstrap
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class TestAddTopologyRepresentation(test.bootstrap.IFC4):
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def setup_context(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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model = ifcopenshell.api.context.add_context(self.file, context_type="Model")
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return ifcopenshell.api.context.add_context(
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self.file,
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context_type="Model",
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context_identifier="Reference",
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target_view="GRAPH_VIEW",
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parent=model,
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)
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def test_creates_topology_representation(self):
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context = self.setup_context()
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face = self.file.create_entity("IfcFaceSurface")
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rep = ifcopenshell.api.geometry.add_topology_representation(self.file, context=context, item=face)
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assert rep.is_a("IfcTopologyRepresentation")
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assert rep.ContextOfItems == context
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assert face in rep.Items
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def test_infers_face_representation_type(self):
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context = self.setup_context()
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face = self.file.create_entity("IfcFaceSurface")
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rep = ifcopenshell.api.geometry.add_topology_representation(self.file, context=context, item=face)
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assert rep.RepresentationType == "Face"
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def test_infers_edge_representation_type(self):
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context = self.setup_context()
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edge = self.file.create_entity("IfcEdge")
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rep = ifcopenshell.api.geometry.add_topology_representation(self.file, context=context, item=edge)
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assert rep.RepresentationType == "Edge"
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def test_defaults_representation_identifier_to_context_identifier(self):
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context = self.setup_context()
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face = self.file.create_entity("IfcFaceSurface")
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rep = ifcopenshell.api.geometry.add_topology_representation(self.file, context=context, item=face)
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assert rep.RepresentationIdentifier == context.ContextIdentifier
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def test_custom_representation_identifier(self):
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context = self.setup_context()
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face = self.file.create_entity("IfcFaceSurface")
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rep = ifcopenshell.api.geometry.add_topology_representation(
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self.file, context=context, item=face, representation_identifier="Body"
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)
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assert rep.RepresentationIdentifier == "Body"
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def test_custom_representation_type_overrides_inferred(self):
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context = self.setup_context()
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face = self.file.create_entity("IfcFaceSurface")
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rep = ifcopenshell.api.geometry.add_topology_representation(
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self.file, context=context, item=face, representation_type="Undefined"
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)
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assert rep.RepresentationType == "Undefined"
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class TestAddTopologyRepresentationIFC2X3(test.bootstrap.IFC2X3, TestAddTopologyRepresentation):
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pass
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@@ -0,0 +1,56 @@
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# IfcOpenShell - IFC toolkit and geometry engine
|
||||
# Copyright (C) 2026 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/>.
|
||||
# This file was generated with the assistance of an AI coding tool.
|
||||
|
||||
import ifcopenshell.api.root
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import ifcopenshell.api.structural
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import test.bootstrap
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class TestAssignProduct(test.bootstrap.IFC4):
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def test_creating_a_new_relationship(self):
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member = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcStructuralSurfaceMember")
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wall = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
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rel = ifcopenshell.api.structural.assign_product(self.file, relating_product=member, related_object=wall)
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assert rel.is_a("IfcRelAssignsToProduct")
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assert rel.RelatingProduct == member
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assert wall in rel.RelatedObjects
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def test_adding_a_second_object_to_an_existing_relationship(self):
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member = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcStructuralSurfaceMember")
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wall1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
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wall2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
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rel1 = ifcopenshell.api.structural.assign_product(self.file, relating_product=member, related_object=wall1)
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rel2 = ifcopenshell.api.structural.assign_product(self.file, relating_product=member, related_object=wall2)
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assert rel1 == rel2
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assert len(self.file.by_type("IfcRelAssignsToProduct")) == 1
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assert wall1 in rel1.RelatedObjects
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assert wall2 in rel1.RelatedObjects
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def test_does_not_duplicate_an_existing_assignment(self):
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member = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcStructuralSurfaceMember")
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wall = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcWall")
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ifcopenshell.api.structural.assign_product(self.file, relating_product=member, related_object=wall)
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ifcopenshell.api.structural.assign_product(self.file, relating_product=member, related_object=wall)
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assert len(self.file.by_type("IfcRelAssignsToProduct")) == 1
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rels = self.file.by_type("IfcRelAssignsToProduct")
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assert len(rels[0].RelatedObjects) == 1
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|
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|
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class TestAssignProductIFC2X3(test.bootstrap.IFC2X3, TestAssignProduct):
|
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pass
|
||||
@@ -0,0 +1,62 @@
|
||||
# IfcOpenShell - IFC toolkit and geometry engine
|
||||
# Copyright (C) 2026 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/>.
|
||||
# This file was generated with the assistance of an AI coding tool.
|
||||
|
||||
import ifcopenshell.api.root
|
||||
import ifcopenshell.api.structural
|
||||
import test.bootstrap
|
||||
|
||||
|
||||
class TestAssignToBuilding(test.bootstrap.IFC4):
|
||||
def test_creating_a_new_relationship(self):
|
||||
model = ifcopenshell.api.structural.add_structural_analysis_model(self.file)
|
||||
building = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
|
||||
rel = ifcopenshell.api.structural.assign_to_building(
|
||||
self.file, structural_analysis_model=model, building=building
|
||||
)
|
||||
assert rel.is_a("IfcRelServicesBuildings")
|
||||
assert rel.RelatingSystem == model
|
||||
assert building in rel.RelatedBuildings
|
||||
|
||||
def test_adding_a_second_building_to_an_existing_relationship(self):
|
||||
model = ifcopenshell.api.structural.add_structural_analysis_model(self.file)
|
||||
building1 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
|
||||
building2 = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
|
||||
rel1 = ifcopenshell.api.structural.assign_to_building(
|
||||
self.file, structural_analysis_model=model, building=building1
|
||||
)
|
||||
rel2 = ifcopenshell.api.structural.assign_to_building(
|
||||
self.file, structural_analysis_model=model, building=building2
|
||||
)
|
||||
assert rel1 == rel2
|
||||
assert len(self.file.by_type("IfcRelServicesBuildings")) == 1
|
||||
assert building1 in rel1.RelatedBuildings
|
||||
assert building2 in rel1.RelatedBuildings
|
||||
|
||||
def test_does_not_duplicate_an_existing_assignment(self):
|
||||
model = ifcopenshell.api.structural.add_structural_analysis_model(self.file)
|
||||
building = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcBuilding")
|
||||
ifcopenshell.api.structural.assign_to_building(self.file, structural_analysis_model=model, building=building)
|
||||
ifcopenshell.api.structural.assign_to_building(self.file, structural_analysis_model=model, building=building)
|
||||
assert len(self.file.by_type("IfcRelServicesBuildings")) == 1
|
||||
rels = self.file.by_type("IfcRelServicesBuildings")
|
||||
assert len(rels[0].RelatedBuildings) == 1
|
||||
|
||||
|
||||
class TestAssignToBuildingIFC2X3(test.bootstrap.IFC2X3, TestAssignToBuilding):
|
||||
pass
|
||||
Reference in New Issue
Block a user