From 679c2bef02214d0cfd49e4c7500a2478d890b59b Mon Sep 17 00:00:00 2001
From: Dion Moult <dion@thinkmoult.com>
Date: Thu, 3 Dec 2020 21:52:17 +1100
Subject: [PATCH] Fix bug where aggregates cause drawing generation to fail

---
 src/ifcblenderexport/blenderbim/bim/cut_ifc.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ifcblenderexport/blenderbim/bim/cut_ifc.py b/src/ifcblenderexport/blenderbim/bim/cut_ifc.py
index 37d79afe6a..f7e86f81bc 100644
--- a/src/ifcblenderexport/blenderbim/bim/cut_ifc.py
+++ b/src/ifcblenderexport/blenderbim/bim/cut_ifc.py
@@ -652,6 +652,8 @@ class IfcCutter:
             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"