Generated construction animations now support animating input product consumptions, movement to/from, and multiple processes per product

src/ifcopenshell-python/ifcopenshell/api/sequence/assign_process.py

@@ -0,0 +1,43 @@
+import ifcopenshell
+import ifcopenshell.api
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {
+            "relating_process": None,
+            "related_object": None,
+        }
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        if self.settings["related_object"].HasAssignments:
+            for assignment in self.settings["related_object"].HasAssignments:
+                if (
+                    assignment.is_a("IfclRelAssignsToProcess")
+                    and assignment.RelatingProcess == self.settings["relating_process"]
+                ):
+                    return
+
+        operates_on = None
+        if self.settings["relating_process"].OperatesOn:
+            operates_on = self.settings["relating_process"].OperatesOn[0]
+
+        if operates_on:
+            related_objects = list(operates_on.RelatedObjects)
+            related_objects.append(self.settings["related_object"])
+            operates_on.RelatedObjects = related_objects
+            ifcopenshell.api.run("owner.update_owner_history", self.file, **{"element": operates_on})
+        else:
+            operates_on = self.file.create_entity(
+                "IfcRelAssignsToProcess",
+                **{
+                    "GlobalId": ifcopenshell.guid.new(),
+                    "OwnerHistory": ifcopenshell.api.run("owner.create_owner_history", self.file),
+                    "RelatedObjects": [self.settings["related_object"]],
+                    "RelatingProcess": self.settings["relating_process"],
+                }
+            )
+        return operates_on

src/ifcopenshell-python/ifcopenshell/api/sequence/data.py

@@ -127,6 +127,7 @@ class Data:
             data["HasAssignmentsWorkCalendar"] = []
             data["RelatedObjects"] = []
             data["RelatingProducts"] = []
+            data["OperatesOn"] = []
             data["IsPredecessorTo"] = []
             data["IsSuccessorFrom"] = []
             if task.TaskTime:
@@ -139,6 +140,7 @@ class Data:
                 for r in task.HasAssignments
                 if r.is_a("IfcRelAssignsToProduct")
             ]
+            [data["OperatesOn"].extend([o.id() for o in r.RelatedObjects]) for r in task.OperatesOn]
             [data["IsPredecessorTo"].append(rel.id()) for rel in task.IsPredecessorTo or []]
             [data["IsSuccessorFrom"].append(rel.id()) for rel in task.IsSuccessorFrom or []]
             [

src/ifcopenshell-python/ifcopenshell/api/sequence/unassign_process.py

@@ -0,0 +1,25 @@
+import ifcopenshell
+import ifcopenshell.api
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {
+            "relating_process": None,
+            "related_object": None,
+        }
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        for rel in self.settings["related_object"].HasAssignments or []:
+            if not rel.is_a("IfcRelAssignsToProcess") or rel.RelatingProcess != self.settings["relating_process"]:
+                continue
+            if len(rel.RelatedObjects) == 1:
+                return self.file.remove(rel)
+            related_objects = list(rel.RelatedObjects)
+            related_objects.remove(self.settings["related_object"])
+            rel.RelatedObjects = related_objects
+            ifcopenshell.api.run("owner.update_owner_history", self.file, **{"element": rel})
+            return rel