Fix bug where aggregates cause drawing generation to fail

Moult · Moult · commit 679c2bef0221 · 2020-12-03T21:52:17.000+11:00
diff --git a/src/ifcblenderexport/blenderbim/bim/cut_ifc.py b/src/ifcblenderexport/blenderbim/bim/cut_ifc.py
@@ -652,6 +652,8 @@ def get_annotation(self):
             for element in ifc_file.by_type("IfcElement"):
                 annotation_representation = None
                 box_representation = None
+                if not element.Representation:
+                    continue # This can occur for aggregates
                 for representation in element.Representation.Representations:
                     if (
                         representation.ContextOfItems.ContextType == "Plan"
