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/>.
+
+from typing import Any
+
+import ifcopenshell
+import ifcopenshell.api.sequence
+
+
+def edit_sequence(
+    file: ifcopenshell.file, rel_sequence: ifcopenshell.entity_instance, attributes: dict[str, Any]
+) -> None:
+    """Edits the attributes of an IfcRelSequence
+
+    For more information about the attributes and data types of an
+    IfcRelSequence, consult the IFC documentation.
+
+    :param rel_sequence: The IfcRelSequence entity you want to edit
+    :param attributes: a dictionary of attribute names and values.
+    :return: None
+
+    Example:
+
+    .. code:: python
+
+        # Let's imagine we are creating a construction schedule. All tasks
+        # need to be part of a work schedule.
+        schedule = ifcopenshell.api.sequence.add_work_schedule(model, name="Construction Schedule A")
+
+        # Let's imagine a root construction task
+        construction = ifcopenshell.api.sequence.add_task(model,
+            work_schedule=schedule, name="Construction", identification="C")
+
+        # Let's imagine we're building 2 zones, one after another.
+        zone1 = ifcopenshell.api.sequence.add_task(model,
+            parent_task=construction, name="Zone 1", identification="C.1")
+        zone2 = ifcopenshell.api.sequence.add_task(model,
+            parent_task=construction, name="Zone 2", identification="C.2")
+
+        # Zone 1 finishes, then zone 2 starts.
+        sequence = ifcopenshell.api.sequence.assign_sequence(model,
+            relating_process=zone1, related_process=zone2)
+
+        # What if they both started at the same time?
+        ifcopenshell.api.sequence.edit_sequence(model,
+            rel_sequence=sequence, attributes={"SequenceType": "START_START"})
+    """
+    for name, value in attributes.items():
+        setattr(rel_sequence, name, value)
+    if "SequenceType" in attributes.keys():
+        ifcopenshell.api.sequence.cascade_schedule(file, task=rel_sequence.RelatedProcess)