55 lines
2.0 KiB
Python
55 lines
2.0 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 ifcopenshell.api
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import ifcopenshell.util.constraint
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import ifcopenshell.util.date
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import ifcopenshell.util.resource
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def calculate_resource_usage(file: ifcopenshell.file, resource: ifcopenshell.entity_instance) -> None:
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"""Calculates the number of resources required to perform scheduled work on a task.
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:param resource: The IfcConstructionResource to calculate the usage for.
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:return: None
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"""
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if ifcopenshell.util.constraint.is_attribute_locked(resource, "Usage.ScheduleUsage"):
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return
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if not resource.Usage or not resource.Usage.ScheduleWork:
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return
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task = ifcopenshell.util.resource.get_task_assignments(resource)
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if not task or not task.TaskTime:
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return
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if not task.TaskTime.DurationType or task.TaskTime.DurationType == "WORKTIME":
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hours_per_day = 8
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else:
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hours_per_day = 24
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task_duration = ifcopenshell.util.date.ifc2datetime(task.TaskTime.ScheduleDuration)
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seconds = task_duration.days * hours_per_day * 60 * 60
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seconds += task_duration.seconds
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person_hours = ifcopenshell.util.date.ifc2datetime(resource.Usage.ScheduleWork)
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required_resources = person_hours.total_seconds() / seconds
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resource.Usage.ScheduleUsage = float(required_resources)
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