From 20471bd33ea80ecb6a0c062cf4724984a5cfa25d Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Mon, 17 Dec 2018 10:56:26 +0100
Subject: [PATCH] Check comcurve segments extent before creating iterator

---
 src/ifcgeom/IfcGeomWires.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/ifcgeom/IfcGeomWires.cpp b/src/ifcgeom/IfcGeomWires.cpp
index 884efbec35..eb99eec617 100644
--- a/src/ifcgeom/IfcGeomWires.cpp
+++ b/src/ifcgeom/IfcGeomWires.cpp
@@ -400,6 +400,11 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcCompositeCurve* l, TopoDS_Wire
 
 	}
 
+	if (converted_segments.Extent() == 0) {
+		Logger::Message(Logger::LOG_ERROR, "No segment succesfully converted:", l->entity);
+		return false;
+	}
+
 	BRepBuilderAPI_MakeWire w;
 	TopoDS_Vertex wire_first_vertex, wire_last_vertex, edge_first_vertex, edge_last_vertex;