X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FMEDLoader%2FMEDFileMesh.cxx;fp=src%2FMEDLoader%2FMEDFileMesh.cxx;h=d94dda94b0b40534cc4d73cbbdb445589234b559;hb=b28243136a6634270d02ea83449032bb9e805b90;hp=b77e3416dcbacbed3a670942ffd8247aae36b2e1;hpb=7da7c6a974e4307121b3d3c9494e3e1037588870;p=modules%2Fmed.git

diff --git a/src/MEDLoader/MEDFileMesh.cxx b/src/MEDLoader/MEDFileMesh.cxx
index b77e3416d..d94dda94b 100644
--- a/src/MEDLoader/MEDFileMesh.cxx
+++ b/src/MEDLoader/MEDFileMesh.cxx
@@ -3650,7 +3650,13 @@ void MEDFileUMesh::buildInnerBoundaryAlongM1Group(const std::string& grpNameM1,
     throw INTERP_KERNEL::Exception("MEDFileUMesh::buildInnerBoundaryAlongM1Group : internal problem !");
   MEDCouplingAutoRefCountObjectPtr<DataArrayInt> newFam=DataArrayInt::New();
   newFam->alloc(newm1->getNumberOfCells(),1);
-  int idd=getMaxFamilyId()+1;
+  // Get a new family ID: care must be taken if we need a positive ID or a negative one:
+  // Positive ID for family of nodes, negative for all the rest.
+  int idd;
+  if (m1->getMeshDimension() == 0)
+    idd=getMaxFamilyId()+1;
+  else
+    idd=getMinFamilyId()-1;
   int globStart=0,start=0,end,globEnd;
   int nbOfChunks=szOfCellGrpOfSameType->getNumberOfTuples();
   for(int i=0;i<nbOfChunks;i++)