90 lines
3.8 KiB
Python
90 lines
3.8 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 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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from typing import Optional
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import ifcopenshell.api.nest
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import ifcopenshell.api.project
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import ifcopenshell.api.root
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def add_resource(
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file: ifcopenshell.file,
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parent_resource: Optional[ifcopenshell.entity_instance] = None,
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ifc_class: str = "IfcCrewResource",
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name: Optional[str] = None,
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predefined_type: str = "NOTDEFINED",
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) -> ifcopenshell.entity_instance:
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"""Add a new construction resource
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Construction resources may be managed and connected to cost schedules
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and construction schedules. This allows calculations to be done on
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resource utilisation, cost optimisation (e.g. labour rates), and
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optioneering on build strategies.
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There are typically two types of resources. Crew resources are resources
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where you manage your own crew and you have full control over the
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equipment, labour, products, and materials used by your crew.
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Alternatively, there are subcontractor resources, where you simply
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delegate all the details to a subcontractor and it is not decomposed
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into further levels of detail.
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This means when adding resources, you'd first either add a crew or
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subcontract resource. If it is a crew resource, you'd then add child
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resources to that crew, such as equipment (cranes, excavators, hoists,
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etc), material (wood, concrete, etc), and labour (rigging crews,
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formworkers, etc).
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:param parent_resource: If this is a child resource (typically to a crew
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resource), then nominate the parent IfcConstructionResource here.
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:param ifc_class: The class of resource chosen from
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IfcConstructionEquipmentResource, IfcConstructionMaterialResource,
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IfcConstructionProductResource, IfcCrewResource, IfcLaborResource,
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or IfcSubContractResource.
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:param name: The name of the resource
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:param predefined_type: Consult the IFC documentation for the valid
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predefined types for each type of resource class.
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:return: The newly created resource depending on the nominated IFC
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class.
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Example:
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.. code:: python
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# Add our own crew
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crew = ifcopenshell.api.resource.add_resource(model, ifc_class="IfcCrewResource")
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# Add some labour to our crew.
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ifcopenshell.api.resource.add_resource(model, parent_resource=crew, ifc_class="IfcLaborResource")
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"""
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resource = ifcopenshell.api.root.create_entity(
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file,
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ifc_class=ifc_class,
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predefined_type=predefined_type,
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name=name or "Unnamed",
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)
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# TODO: this is an ambiguity by buildingSMART: Can we nest an IfcCrewResource under an IfcCrewResource ?
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# https://forums.buildingsmart.org/t/what-are-allowed-to-be-root-level-construction-resources/3550
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if parent_resource:
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ifcopenshell.api.nest.assign_object(file, related_objects=[resource], relating_object=parent_resource)
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elif file.schema != "IFC2X3":
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context = file.by_type("IfcContext")[0]
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ifcopenshell.api.project.assign_declaration(file, definitions=[resource], relating_context=context)
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return resource
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