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
+
+
+def add_task_time(
+    file: ifcopenshell.file, task: ifcopenshell.entity_instance, is_recurring: bool = False
+) -> ifcopenshell.entity_instance:
+    """Adds a task time to a task
+
+    Some tasks, such as activities within a work breakdown structure or
+    overall maintenance tasks will have time related information. This
+    includes start dates, durations, end dates, and possible recurring times
+    (especially for maintenance tasks).
+
+    :param task: The task to add time data to.
+    :param is_recurring: Whether or not the time should recur.
+    :return: The newly created IfcTaskTime.
+
+    Example:
+
+    .. code:: python
+
+        # Let's imagine we are creating a construction schedule.
+        schedule = ifcopenshell.api.sequence.add_work_schedule(model, name="Construction Schedule A")
+
+        # Create a portion of a work breakdown structure.
+        construction = ifcopenshell.api.sequence.add_task(model,
+            work_schedule=schedule, name="Construction", identification="C")
+        superstructure = ifcopenshell.api.sequence.add_task(model,
+            parent_task=construction, name="Superstructure", identification="C3")
+        task = ifcopenshell.api.sequence.add_task(model,
+            parent_task=superstructure, name="Ground Floor FRP", identification="C3.1")
+
+        # Add time data. Note that time data is blank by default.
+        time = ifcopenshell.api.sequence.add_task_time(model, task=task)
+
+        # Let's say our task starts on the first of January when everybody
+        # is still drunk from the new years celebration, and lasts for 2
+        # days. Note we don't need to specify the end date, as that is
+        # derived from the start plus the duration. In this simple example,
+        # no calendar has been specified, so we are working 24/7. Yikes!
+        ifcopenshell.api.sequence.edit_task_time(model,
+            task_time=time, attributes={"ScheduleStart": "2000-01-01", "ScheduleDuration": "P2D"})
+    """
+    if is_recurring:
+        task_time = file.create_entity("IfcTaskTimeRecurring")
+    else:
+        task_time = file.create_entity("IfcTaskTime")
+    task.TaskTime = task_time
+    return task_time