From b4d0e5f8fc7d20c68a8c1a2ed4a4b217ca954c80 Mon Sep 17 00:00:00 2001
From: Christopher Lackner <clackner@cerbsim.com>
Date: Mon, 4 Dec 2023 11:01:10 +0100
Subject: [PATCH] don't invert on periodic boundary (only if normal vectors do
 not match)

---
 libsrc/meshing/basegeom.cpp | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/libsrc/meshing/basegeom.cpp b/libsrc/meshing/basegeom.cpp
index 2cd03a2d..606ff7a3 100644
--- a/libsrc/meshing/basegeom.cpp
+++ b/libsrc/meshing/basegeom.cpp
@@ -1057,12 +1057,6 @@ namespace netgen
     }
 
     xbool do_invert = maybe;
-    if(dst.identifications[0].type == Identifications::PERIODIC)
-      {
-        auto other = static_cast<GeometryFace*>(dst.primary);
-        if(dst.domin != other->domout && dst.domout != other->domin)
-          do_invert = true;
-      }
 
     // now insert mapped surface elements
     for(auto sei : mesh.SurfaceElements().Range())