From fde63a0e517971f549752bbf384259a75c870fed Mon Sep 17 00:00:00 2001
From: Anida Khizar <anida.khizar@cea.fr>
Date: Mon, 9 May 2022 09:45:30 +0200
Subject: [PATCH] BugFix: local renumbering of cells when the intersecting tool
 is a closed line

---
 src/MEDCoupling/MEDCouplingUMesh_intersection.cxx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/MEDCoupling/MEDCouplingUMesh_intersection.cxx b/src/MEDCoupling/MEDCouplingUMesh_intersection.cxx
index 4f5e96377..0b07220ae 100644
--- a/src/MEDCoupling/MEDCouplingUMesh_intersection.cxx
+++ b/src/MEDCoupling/MEDCouplingUMesh_intersection.cxx
@@ -1120,14 +1120,14 @@ MEDCouplingUMesh *BuildMesh2DCutInternal(double eps, MEDCouplingUMesh *splitMesh
   renumb->alloc(nbCellsInSplitMesh1D,1);
   const mcIdType * renumbP(renumb->begin());
 
-  mcIdType i, first=cSplitPtr[1];
+  mcIdType i, renumOffset = 0, first=cSplitPtr[1];
   // Follow 1D line backward as long as it is connected:
-  for (i=nbCellsInSplitMesh1D-1; cSplitPtr[ciSplitPtr[i]+2] == first; i--)
+  for (i=nbCellsInSplitMesh1D-1; cSplitPtr[ciSplitPtr[i]+2] == first; i--,renumOffset++)
     first=cSplitPtr[ciSplitPtr[i]+1];
   if (i < nbCellsInSplitMesh1D-1)
     {
       // Build circular permutation to shift consecutive edges together
-      renumb->iota(i+1);
+      renumb->iota(renumOffset);
       renumb->applyModulus(nbCellsInSplitMesh1D);
 
       splitMesh1D->renumberCells(renumbP, false);
-- 
2.39.2