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 unassign_recurrence_pattern(file: ifcopenshell.file, recurrence_pattern: ifcopenshell.entity_instance) -> None:
+    """Unassigns a recurrence pattern
+
+    Note that a recurring task time must have a recurrence pattern, so if
+    you remove it, be sure to clean up after this API call
+    (e.g. remove IfcTaskTimeRecurring entity
+    or assign a different recurrence patern to it
+    or replace IfcTaskTimeRecurring with IfcTaskTime).
+
+    :param recurrence_pattern: The IfcRecurrencePattern to remove.
+    :return: None
+
+    Example:
+
+    .. code:: python
+
+        # Let's create a new calendar.
+        calendar = ifcopenshell.api.sequence.add_work_calendar(model)
+
+        # Let's start defining the times that we work during the week.
+        work_time = ifcopenshell.api.sequence.add_work_time(model,
+            work_calendar=calendar, time_type="WorkingTimes")
+
+        # We create a weekly recurrence
+        pattern = ifcopenshell.api.sequence.assign_recurrence_pattern(model,
+            parent=work_time, recurrence_type="WEEKLY")
+
+        # Change our mind, let's just maintain it whenever we feel like it.
+        ifcopenshell.api.sequence.unassign_recurrence_pattern(recurrence_pattern=pattern)
+    """
+    for time_period in recurrence_pattern.TimePeriods or []:
+        file.remove(time_period)
+    file.remove(recurrence_pattern)