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Sigma Dimensions
75 lines
2.9 KiB
Python
75 lines
2.9 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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import math
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import ifcopenshell.api
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import ifcopenshell.util.date
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import ifcopenshell.util.element
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import ifcopenshell.util.resource
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class Usecase:
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def __init__(self, file, resource=None):
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"""Calculates the work that a resource is used for
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This is an unofficial parametric calculation that may be done on a
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resource based on careful analysis of the relationships between the
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costing, scheduling, and resource domains in IFC.
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A resource may store a productivity rate in a property set called
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EPset_Productivity. This stores three properties:
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* BaseQuantityConsumed - a duration that the resource is consumed for.
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* BaseQuantityProducedName - what quantity the resource can produce,
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such as area or volume.
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* BaseQuantityProducedValue - what value of that quantity the resource
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can produce during that duration.
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For example, a labour or equipment resource might produce 100m3 of
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NetVolume every day (i.e. 8 hours are consumed).
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Then, if a resource is assigned to a construction task, and that
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construction task is assigned to concrete slabs totalling 200m3, we can
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calculate that the resource consumes 16 hours of work.
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This calculated work is stored against the resource as scheduled work
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under the resource time data.
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:param resource: The IfcConstructionResource that you want to calculate
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the work performed.
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:type resource: ifcopenshell.entity_instance.entity_instance
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:return None:
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:rtype None:
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"""
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self.file = file
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self.settings = {"resource": resource}
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def execute(self):
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amount_worked = ifcopenshell.util.resource.get_resource_required_work(
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self.settings["resource"]
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)
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if not amount_worked:
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return
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if not self.settings["resource"].Usage:
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ifcopenshell.api.run(
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"resource.add_resource_time",
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self.file,
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resource=self.settings["resource"],
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)
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self.settings["resource"].Usage.ScheduleWork = amount_worked
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