From c78f57a78a2742135ba6070a448cda00170c31ea Mon Sep 17 00:00:00 2001
From: Bernd Hahnebach <bernd@bimstatik.org>
Date: Mon, 30 Nov 2015 07:59:30 +0100
Subject: [PATCH] FEM: fix node order of seg3 in ViewProwiderFemMesh

---
 src/Mod/Fem/Gui/ViewProviderFemMesh.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Mod/Fem/Gui/ViewProviderFemMesh.cpp b/src/Mod/Fem/Gui/ViewProviderFemMesh.cpp
index ac101c94b..43528c9d4 100644
--- a/src/Mod/Fem/Gui/ViewProviderFemMesh.cpp
+++ b/src/Mod/Fem/Gui/ViewProviderFemMesh.cpp
@@ -1067,19 +1067,19 @@ void ViewProviderFEMMeshBuilder::createMesh(const App::Property* prop,
             const SMDS_MeshEdge* aEdge = aEdgeIte->next();
             int num = aEdge->NbNodes();
             switch (num){
-            case 2: { // case for Segment element
+            case 2: { // Seg2: N1, N2
                 int nIdx0 = mapNodeIndex[aEdge->GetNode(0)];
                 int nIdx1 = mapNodeIndex[aEdge->GetNode(1)];
                 insEdgeVec(EdgeMap, nIdx0, nIdx1);
                 break;
             }
 
-            case 3: { // case for Segment element
+            case 3: { // Seg3: N1, N2, N3 (N3 is middle Node)
                 int nIdx0 = mapNodeIndex[aEdge->GetNode(0)];
                 int nIdx1 = mapNodeIndex[aEdge->GetNode(1)];
                 int nIdx2 = mapNodeIndex[aEdge->GetNode(2)];
-                insEdgeVec(EdgeMap, nIdx0, nIdx1);
-                insEdgeVec(EdgeMap, nIdx1, nIdx2);
+                insEdgeVec(EdgeMap, nIdx0, nIdx2);
+                insEdgeVec(EdgeMap, nIdx2, nIdx1);
                 break;
             }
             }