From 10b502512ff791c7e25c8c7b516a7175a466341e Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Fri, 5 Nov 2021 10:09:12 +0100
Subject: [PATCH] #1853 don't blindly explode compounds but check whether there
 are solids inside

---
 src/ifcgeom/IfcGeomShapes.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ifcgeom/IfcGeomShapes.cpp b/src/ifcgeom/IfcGeomShapes.cpp
index 6475b34e83..8bfad90ef6 100644
--- a/src/ifcgeom/IfcGeomShapes.cpp
+++ b/src/ifcgeom/IfcGeomShapes.cpp
@@ -892,7 +892,7 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcRepresentation* l, IfcRepresen
 			} else {
 				TopoDS_Shape s;
 				if (convert_shape(representation_item, s)) {
-					if (s.ShapeType() == TopAbs_COMPOUND) {
+					if (s.ShapeType() == TopAbs_COMPOUND && TopoDS_Iterator(s).More() && TopoDS_Iterator(s).Value().ShapeType() == TopAbs_SOLID) {
 						TopoDS_Iterator it(s);
 						for (; it.More(); it.Next()) {
 							shapes.push_back(IfcRepresentationShapeItem(representation_item->data().id(), it.Value(), get_style(representation_item)));