Assigning a representation to a product type now syncs mapped representations of all of its typed products.

src/blenderbim/blenderbim/bim/module/geometry/operator.py

@@ -72,7 +72,9 @@ class AddRepresentation(bpy.types.Operator):
 
         bpy.ops.bim.edit_object_placement(obj=obj.name)
 
-        if obj.data:
+        if not obj.data:
+            return {"FINISHED"}
+
         product = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
 
         context_id = self.context_id or int(bpy.context.scene.BIMProperties.contexts)
@@ -105,6 +107,7 @@ class AddRepresentation(bpy.types.Operator):
             print("Failed to write shape representation")
             return {"FINISHED"}
 
+        # TODO: Migrate to parametric engine system
         box_context_id = get_context_id("Model", "Box", "MODEL_VIEW")
         old_box = ifcopenshell.util.representation.get_representation(product, "Model", "Box", "MODEL_VIEW")
         if (
@@ -150,6 +153,14 @@ class AddRepresentation(bpy.types.Operator):
         mesh.BIMMeshProperties.ifc_definition_id = int(result.id())
         obj.data = mesh
         Data.load(IfcStore.get_file(), obj.BIMObjectProperties.ifc_definition_id)
+
+        if self.file.schema == "IFC2X3":
+            types = product.ObjectTypeOf
+        else:
+            types = product.Types
+        if product.is_a("IfcTypeProduct") and types:
+            for element in types[0].RelatedObjects:
+                Data.load(IfcStore.get_file(), element.id())
         return {"FINISHED"}
 
 

src/ifcopenshell-python/ifcopenshell/api/geometry/assign_representation.py

@@ -35,4 +35,18 @@ class Usecase:
                 )
             )
             self.settings["product"].RepresentationMaps = maps
+            if self.file.schema == "IFC2X3":
+                types = self.settings["product"].ObjectTypeOf
+            else:
+                types = self.settings["product"].Types
+            if types:
+                for element in types[0].RelatedObjects:
+                    mapped_representation = ifcopenshell.api.run(
+                        "geometry.map_representation", self.file, **{"representation": self.settings["representation"]}
+                    )
+                    ifcopenshell.api.run(
+                        "geometry.assign_representation",
+                        self.file,
+                        **{"product": element, "representation": mapped_representation}
+                    )
         ifcopenshell.api.run("owner.update_owner_history", self.file, **{"element": self.settings["product"]})