From c7a2abdf2d62a7eca7cd9fb99dc51fd55728e8fb Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Mon, 11 Dec 2023 21:00:32 +0100
Subject: [PATCH] CgalKernel halfspace handling: orientation is on face not
 plane

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

diff --git a/src/ifcgeom/kernels/cgal/CgalKernel.cpp b/src/ifcgeom/kernels/cgal/CgalKernel.cpp
index cfb6cabce0..a1326ffcc4 100644
--- a/src/ifcgeom/kernels/cgal/CgalKernel.cpp
+++ b/src/ifcgeom/kernels/cgal/CgalKernel.cpp
@@ -1868,7 +1868,7 @@ bool CgalKernel::convert_impl(const taxonomy::boolean_result::ptr br, Conversion
 			});
 
 			double wmin, wmax;
-			if (p.orientation.get_value_or(true)) {
+			if (face->orientation.get_value_or(false)) {
 				wmin = 0.;
 				wmax = uvw_max[2] + eps;
 			} else {