First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
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+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2021 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/>.
+
+import ifcopenshell.util.date
+
+
+def add_resource_time(file: ifcopenshell.file, resource: ifcopenshell.entity_instance) -> ifcopenshell.entity_instance:
+    """Adds the time that a resource is used for
+
+    For labour and equipment resources, the total duration that the resource
+    is used for may be stored. This may either be input manually or
+    calculated parametrically. This is known as the resource time, and may
+    be used to calculate other parameters like resource utilisation.
+
+    :param resource: The IfcConstructionResource to record time for.
+    :return: The newly created IfcResourceTime
+
+    Example:
+
+    .. code:: python
+
+        # Add our own crew
+        crew = ifcopenshell.api.resource.add_resource(model, ifc_class="IfcCrewResource")
+
+        # Add some labour to our crew.
+        labour = ifcopenshell.api.resource.add_resource(model,
+            parent_resource=crew, ifc_class="IfcLaborResource")
+
+        # Labour resource is quantified in terms of time.
+        quantity = ifcopenshell.api.resource.add_resource_quantity(model,
+            resource=labour, ifc_class="IfcQuantityTime")
+
+        # Store the unit time used in hours
+        ifcopenshell.api.resource.edit_resource_quantity(model,
+            physical_quantity=quantity, attributes={"TimeValue": 8.0})
+
+        # Let's imagine we've used the resource for 2 days.
+        time = ifcopenshell.api.resource.add_resource_time(model, resource=labour)
+        ifcopenshell.api.resource.edit_resource_time(model,
+            resource_time=time, attributes={"ScheduleWork": "PT16H"})
+    """
+    resource_time = file.create_entity("IfcResourceTime")
+    resource.Usage = resource_time
+    return resource_time