From 1992d948306b0474a5dc4c641051a54b380dff8c Mon Sep 17 00:00:00 2001
From: Julien Cortial <julien.cortial@safrangroup.com>
Date: Fri, 3 May 2024 10:20:18 +0200
Subject: [PATCH] Avoid switching 2nd and 3rd triangle vertices

---
 src/mmg2d/API_functions_2d.c | 4 ++--
 src/mmg3d/API_functions_3d.c | 4 ++--
 src/mmgs/API_functions_s.c   | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/mmg2d/API_functions_2d.c b/src/mmg2d/API_functions_2d.c
index 0f35f518f..42e41e395 100644
--- a/src/mmg2d/API_functions_2d.c
+++ b/src/mmg2d/API_functions_2d.c
@@ -1025,8 +1025,8 @@ int  MMG2D_Set_triangles(MMG5_pMesh mesh, MMG5_int *tria, MMG5_int *refs) {
     j = (i-1)*3;
     ptt = &mesh->tria[i];
     ptt->v[0] = tria[j]  ;
-    ptt->v[1] = tria[j+2];
-    ptt->v[2] = tria[j+1];
+    ptt->v[1] = tria[j+1];
+    ptt->v[2] = tria[j+2];
     if ( refs != NULL )
       ptt->ref  = refs[i-1];
 
diff --git a/src/mmg3d/API_functions_3d.c b/src/mmg3d/API_functions_3d.c
index fc8f15165..4b4f9f289 100644
--- a/src/mmg3d/API_functions_3d.c
+++ b/src/mmg3d/API_functions_3d.c
@@ -941,8 +941,8 @@ int  MMG3D_Set_triangles(MMG5_pMesh mesh, MMG5_int *tria, MMG5_int *refs) {
     j = (i-1)*3;
     ptt = &mesh->tria[i];
     ptt->v[0] = tria[j]  ;
-    ptt->v[1] = tria[j+2];
-    ptt->v[2] = tria[j+1];
+    ptt->v[1] = tria[j+1];
+    ptt->v[2] = tria[j+2];
     if ( refs != NULL )
       ptt->ref  = refs[i-1];
   }
diff --git a/src/mmgs/API_functions_s.c b/src/mmgs/API_functions_s.c
index eef8bb36d..4d858fd91 100644
--- a/src/mmgs/API_functions_s.c
+++ b/src/mmgs/API_functions_s.c
@@ -539,8 +539,8 @@ int  MMGS_Set_triangles(MMG5_pMesh mesh, MMG5_int *tria, MMG5_int *refs) {
       j = (i-1)*3;
       ptt = &mesh->tria[i];
       ptt->v[0] = tria[j]  ;
-      ptt->v[1] = tria[j+2];
-      ptt->v[2] = tria[j+1];
+      ptt->v[1] = tria[j+1];
+      ptt->v[2] = tria[j+2];
 
       mesh->point[ptt->v[0]].tag &= ~MG_NUL;
       mesh->point[ptt->v[1]].tag &= ~MG_NUL;