From e36357d38196532f44d4a0b875b4f13afb83521c Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Tue, 5 Nov 2019 15:47:02 +0100
Subject: [PATCH] Log error about missing triangulation

---
 src/ifcgeom/IfcGeomRepresentation.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/ifcgeom/IfcGeomRepresentation.h b/src/ifcgeom/IfcGeomRepresentation.h
index cf5401704f..f231444996 100644
--- a/src/ifcgeom/IfcGeomRepresentation.h
+++ b/src/ifcgeom/IfcGeomRepresentation.h
@@ -177,8 +177,9 @@ namespace IfcGeom {
 						TopLoc_Location loc;
 						Handle_Poly_Triangulation tri = BRep_Tool::Triangulation(face,loc);
 
-						if ( ! tri.IsNull() ) {
-
+						if (tri.IsNull()) {
+							Logger::Message(Logger::LOG_ERROR, "Triangulation missing for face");
+						} else {
 							// A 3x3 matrix to rotate the vertex normals
 							const gp_Mat rotation_matrix = trsf.VectorialPart();