X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FMEDLoader%2FMEDFileFieldOverView.cxx;h=825a780e57708903c583d795b7d5dbf975257f4c;hb=96bc4e98b56b27856dced632cdb6767afb411179;hp=a70e73953a14cc2f82d078a07c45de1b4901dbb6;hpb=6be7c1a24c8879945e9451245a92d66d3aa091f8;p=tools%2Fmedcoupling.git

diff --git a/src/MEDLoader/MEDFileFieldOverView.cxx b/src/MEDLoader/MEDFileFieldOverView.cxx
index a70e73953..825a780e5 100644
--- a/src/MEDLoader/MEDFileFieldOverView.cxx
+++ b/src/MEDLoader/MEDFileFieldOverView.cxx
@@ -27,7 +27,7 @@
 using namespace ParaMEDMEM;
 
 const unsigned char MEDMeshMultiLev::PARAMEDMEM_2_VTKTYPE[MEDMeshMultiLev::PARAMEDMEM_2_VTKTYPE_LGTH]=
-  {1,3,21,5,9,7,22,34,23,28,-1,-1,-1,-1,10,14,13,-1,12,-1,24,-1,16,27,-1,26,-1,29,-1,-1,25,42,-1,4};
+  {1,3,21,5,9,7,22,34,23,28,255,255,255,255,10,14,13,255,12,255,24,255,16,27,255,26,255,29,255,255,25,42,36,4};
 
 const char MEDFileField1TSStructItem2::NEWLY_CREATED_PFL_NAME[]="???";
 
@@ -52,7 +52,7 @@ std::vector<const BigMemoryObject *> MEDFileMeshStruct::getDirectChildren() cons
 
 MEDFileMeshStruct::MEDFileMeshStruct(const MEDFileMesh *mesh):_mesh(mesh)
 {
-  std::vector<int> levs=mesh->getNonEmptyLevels();
+  std::vector<int> levs(mesh->getNonEmptyLevels());
   _name=mesh->getName();
   _nb_nodes=mesh->getNumberOfNodes();
   _geo_types_distrib.resize(levs.size());
@@ -60,7 +60,7 @@ MEDFileMeshStruct::MEDFileMeshStruct(const MEDFileMesh *mesh):_mesh(mesh)
     _geo_types_distrib[-(*lev)]=mesh->getDistributionOfTypes(*lev);
 }
 
-int MEDFileMeshStruct::getLevelOfGeoType(INTERP_KERNEL::NormalizedCellType t) const throw(INTERP_KERNEL::Exception)
+int MEDFileMeshStruct::getLevelOfGeoType(INTERP_KERNEL::NormalizedCellType t) const
 {
   int j=0;
   for(std::vector< std::vector<int> >::const_iterator it1=_geo_types_distrib.begin();it1!=_geo_types_distrib.end();it1++,j--)
@@ -76,7 +76,7 @@ int MEDFileMeshStruct::getLevelOfGeoType(INTERP_KERNEL::NormalizedCellType t) co
   throw INTERP_KERNEL::Exception("MEDFileMeshStruct::getLevelOfGeoType : The specified geometric type is not present in the mesh structure !");
 }
 
-int MEDFileMeshStruct::getNumberOfElemsOfGeoType(INTERP_KERNEL::NormalizedCellType t) const throw(INTERP_KERNEL::Exception)
+int MEDFileMeshStruct::getNumberOfElemsOfGeoType(INTERP_KERNEL::NormalizedCellType t) const
 {
   for(std::vector< std::vector<int> >::const_iterator it1=_geo_types_distrib.begin();it1!=_geo_types_distrib.end();it1++)
     {
@@ -96,10 +96,10 @@ int MEDFileMeshStruct::getNumberOfLevs() const
   return (int)_geo_types_distrib.size();
 }
 
-int MEDFileMeshStruct::getNumberOfGeoTypesInLev(int relativeLev) const throw(INTERP_KERNEL::Exception)
+int MEDFileMeshStruct::getNumberOfGeoTypesInLev(int relativeLev) const
 {
   int pos(-relativeLev);
-  if(pos<0 || pos>=_geo_types_distrib.size())
+  if(pos<0 || pos>=(int)_geo_types_distrib.size())
     throw INTERP_KERNEL::Exception("MEDFileMeshStruct::getNumberOfGeoTypesInLev : invalid level specified !");
   std::size_t sz=_geo_types_distrib[pos].size();
   if(sz%3!=0)
@@ -119,7 +119,7 @@ std::vector<const BigMemoryObject *> MEDMeshMultiLev::getDirectChildren() const
   return std::vector<const BigMemoryObject *>();
 }
 
-MEDMeshMultiLev *MEDMeshMultiLev::New(const MEDFileMesh *m, const std::vector<int>& levs) throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDMeshMultiLev::New(const MEDFileMesh *m, const std::vector<int>& levs)
 {
   if(!m)
     throw INTERP_KERNEL::Exception("MEDMeshMultiLev::New : null input pointer !");
@@ -135,7 +135,7 @@ MEDMeshMultiLev *MEDMeshMultiLev::New(const MEDFileMesh *m, const std::vector<in
   throw INTERP_KERNEL::Exception("MEDMeshMultiLev::New : unrecognized type of mesh ! Must be in [MEDFileUMesh,MEDFileCMesh,MEDFileCurveLinearMesh] !");
 }
 
-MEDMeshMultiLev *MEDMeshMultiLev::New(const MEDFileMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities) throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDMeshMultiLev::New(const MEDFileMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities)
 {
   if(!m)
     throw INTERP_KERNEL::Exception("MEDMeshMultiLev::New 2 : null input pointer !");
@@ -151,10 +151,9 @@ MEDMeshMultiLev *MEDMeshMultiLev::New(const MEDFileMesh *m, const std::vector<IN
   throw INTERP_KERNEL::Exception("MEDMeshMultiLev::New 2 : unrecognized type of mesh ! Must be in [MEDFileUMesh,MEDFileCMesh,MEDFileCurveLinearMesh] !");
 }
 
-MEDMeshMultiLev *MEDMeshMultiLev::NewOnlyOnNode(const MEDFileMesh *m, const DataArrayInt *pflOnNode) throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDMeshMultiLev::NewOnlyOnNode(const MEDFileMesh *m, const DataArrayInt *pflOnNode)
 {
-  std::vector<int> levs(1,0);
-  MEDCouplingAutoRefCountObjectPtr<MEDMeshMultiLev> ret(MEDMeshMultiLev::New(m,levs));
+  MEDCouplingAutoRefCountObjectPtr<MEDMeshMultiLev> ret(MEDMeshMultiLev::New(m,m->getNonEmptyLevels()));
   ret->selectPartOfNodes(pflOnNode);
   return ret.retn();
 }
@@ -166,7 +165,7 @@ void MEDMeshMultiLev::setNodeReduction(const DataArrayInt *nr)
   _node_reduction=const_cast<DataArrayInt*>(nr);
 }
 
-bool MEDMeshMultiLev::isFastlyTheSameStruct(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDMeshMultiLev::isFastlyTheSameStruct(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs) const
 {
   if(fst.getType()==ON_NODES)
     {
@@ -197,7 +196,7 @@ bool MEDMeshMultiLev::isFastlyTheSameStruct(const MEDFileField1TSStructItem& fst
     }
 }
 
-DataArray *MEDMeshMultiLev::buildDataArray(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs, const DataArray *vals) const throw(INTERP_KERNEL::Exception)
+DataArray *MEDMeshMultiLev::buildDataArray(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs, const DataArray *vals) const
 {
   MEDCouplingAutoRefCountObjectPtr<DataArray> ret(const_cast<DataArray *>(vals)); ret->incrRef();
   if(isFastlyTheSameStruct(fst,globs))
@@ -206,10 +205,172 @@ DataArray *MEDMeshMultiLev::buildDataArray(const MEDFileField1TSStructItem& fst,
     return constructDataArray(fst,globs,vals);
 }
 
+/*!
+ * \param [out] famIds - Can be null. If not null the instance has to be dealt by the caller (decrRef).
+ * \param [out] isWithoutCopy - When true the returned instance \a famIds if not null is directly those in the data structure.
+ */
+void MEDMeshMultiLev::retrieveFamilyIdsOnCells(DataArrayInt *& famIds, bool& isWithoutCopy) const
+{
+  const DataArrayInt *fids(_cell_fam_ids);
+  if(!fids)
+    { famIds=0; isWithoutCopy=true; return ; }
+  std::size_t sz(_geo_types.size());
+  bool presenceOfPfls(false);
+  for(std::size_t i=0;i<sz && !presenceOfPfls;i++)
+    {
+      const DataArrayInt *pfl(_pfls[i]);
+      if(pfl)
+        presenceOfPfls=true;
+    }
+  if(!presenceOfPfls)
+    { famIds=const_cast<DataArrayInt *>(fids); famIds->incrRef(); isWithoutCopy=_cell_fam_ids_nocpy; return ; }
+  //bad luck the slowest part
+  isWithoutCopy=false;
+  std::vector< MEDCouplingAutoRefCountObjectPtr<DataArrayInt> > retSafe(sz);
+  std::vector< const DataArrayInt *> ret(sz);
+  int start(0);
+  for(std::size_t i=0;i<sz;i++)
+    {
+      const DataArrayInt *pfl(_pfls[i]);
+      int lgth(_nb_entities[i]);
+      if(pfl)
+        {
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(fids->selectByTupleId2(start,start+lgth,1));
+          retSafe[i]=tmp->selectByTupleIdSafe(pfl->begin(),pfl->end());
+        }
+      else
+        {
+          retSafe[i]=fids->selectByTupleId2(start,start+lgth,1);
+        }
+      ret[i]=retSafe[i];
+      start+=lgth;
+    }
+  famIds=DataArrayInt::Aggregate(ret);
+}
+
+/*!
+ * \param [out] numIds - Can be null. If not null the instance has to be dealt by the caller (decrRef).
+ * \param [out] isWithoutCopy - When true the returned instance \a numIds if not null is directly those in the data structure.
+ */
+void MEDMeshMultiLev::retrieveNumberIdsOnCells(DataArrayInt *& numIds, bool& isWithoutCopy) const
+{
+  const DataArrayInt *nids(_cell_num_ids);
+  if(!nids)
+    { numIds=0; isWithoutCopy=true; return ; }
+  std::size_t sz(_geo_types.size());
+  bool presenceOfPfls(false);
+  for(std::size_t i=0;i<sz && !presenceOfPfls;i++)
+    {
+      const DataArrayInt *pfl(_pfls[i]);
+      if(pfl)
+        presenceOfPfls=true;
+    }
+  if(!presenceOfPfls)
+    { numIds=const_cast<DataArrayInt *>(nids); numIds->incrRef(); isWithoutCopy=_cell_num_ids_nocpy; return ; }
+  //bad luck the slowest part
+  isWithoutCopy=false;
+  std::vector< MEDCouplingAutoRefCountObjectPtr<DataArrayInt> > retSafe(sz);
+  std::vector< const DataArrayInt *> ret(sz);
+  int start(0);
+  for(std::size_t i=0;i<sz;i++)
+    {
+      const DataArrayInt *pfl(_pfls[i]);
+      int lgth(_nb_entities[i]);
+      if(pfl)
+        {
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(nids->selectByTupleId2(start,start+lgth,1));
+          retSafe[i]=tmp->selectByTupleIdSafe(pfl->begin(),pfl->end());
+        }
+      else
+        {
+          retSafe[i]=nids->selectByTupleId2(start,start+lgth,1);
+        }
+      ret[i]=retSafe[i];
+      start+=lgth;
+    }
+  numIds=DataArrayInt::Aggregate(ret);
+}
+
+/*!
+ * \param [out] famIds - Can be null. If not null the instance has to be dealt by the caller (decrRef).
+ * \param [out] isWithoutCopy - When true the returned instance \a famIds if not null is directly those in the data structure.
+ */
+void MEDMeshMultiLev::retrieveFamilyIdsOnNodes(DataArrayInt *& famIds, bool& isWithoutCopy) const
+{
+  const DataArrayInt *fids(_node_fam_ids);
+  if(!fids)
+    { famIds=0; isWithoutCopy=true; return ; }
+  const DataArrayInt *nr(_node_reduction);
+  if(nr)
+    {
+      isWithoutCopy=false;
+      famIds=fids->selectByTupleIdSafe(nr->begin(),nr->end());
+    }
+  else
+    {
+      isWithoutCopy=_node_fam_ids_nocpy;
+      famIds=const_cast<DataArrayInt *>(fids); famIds->incrRef();
+    }
+}
+
+/*!
+ * \param [out] numIds - Can be null. If not null the instance has to be dealt by the caller (decrRef).
+ * \param [out] isWithoutCopy - When true the returned instance \a numIds if not null is directly those in the data structure.
+ */
+void MEDMeshMultiLev::retrieveNumberIdsOnNodes(DataArrayInt *& numIds, bool& isWithoutCopy) const
+{
+  const DataArrayInt *fids(_node_num_ids);
+  if(!fids)
+    { numIds=0; isWithoutCopy=true; return ; }
+  const DataArrayInt *nr(_node_reduction);
+  if(nr)
+    {
+      isWithoutCopy=false;
+      numIds=fids->selectByTupleIdSafe(nr->begin(),nr->end());
+    }
+  else
+    {
+      isWithoutCopy=_node_num_ids_nocpy;
+      numIds=const_cast<DataArrayInt *>(fids); numIds->incrRef();
+    }
+}
+
+void MEDMeshMultiLev::setFamilyIdsOnCells(DataArrayInt *famIds, bool isNoCopy)
+{
+  _cell_fam_ids=famIds;
+  if(famIds)
+    famIds->incrRef();
+  _cell_fam_ids_nocpy=isNoCopy;
+}
+
+void MEDMeshMultiLev::setNumberIdsOnCells(DataArrayInt *numIds, bool isNoCopy)
+{
+  _cell_num_ids=numIds;
+  if(numIds)
+    numIds->incrRef();
+  _cell_num_ids_nocpy=isNoCopy;
+}
+
+void MEDMeshMultiLev::setFamilyIdsOnNodes(DataArrayInt *famIds, bool isNoCopy)
+{
+  _node_fam_ids=famIds;
+  if(famIds)
+    famIds->incrRef();
+  _node_fam_ids_nocpy=isNoCopy;
+}
+
+void MEDMeshMultiLev::setNumberIdsOnNodes(DataArrayInt *numIds, bool isNoCopy)
+{
+  _node_num_ids=numIds;
+  if(numIds)
+    numIds->incrRef();
+  _node_num_ids_nocpy=isNoCopy;
+}
+
 std::string MEDMeshMultiLev::getPflNameOfId(int id) const
 {
   std::size_t sz(_pfls.size());
-  if(id<0 || id>=sz)
+  if(id<0 || id>=(int)sz)
     throw INTERP_KERNEL::Exception("MEDMeshMultiLev::getPflNameOfId : invalid input id !");
   const DataArrayInt *pfl(_pfls[id]);
   if(!pfl)
@@ -221,7 +382,7 @@ std::string MEDMeshMultiLev::getPflNameOfId(int id) const
  * Returns the number of cells having geometric type \a t.
  * The profiles are **NOT** taken into account here.
  */
-int MEDMeshMultiLev::getNumberOfCells(INTERP_KERNEL::NormalizedCellType t) const throw(INTERP_KERNEL::Exception)
+int MEDMeshMultiLev::getNumberOfCells(INTERP_KERNEL::NormalizedCellType t) const
 {
   std::size_t sz(_nb_entities.size());
   for(std::size_t i=0;i<sz;i++)
@@ -230,12 +391,12 @@ int MEDMeshMultiLev::getNumberOfCells(INTERP_KERNEL::NormalizedCellType t) const
   throw INTERP_KERNEL::Exception("MEDMeshMultiLev::getNumberOfCells : not existing geometric type in this !");
 }
 
-int MEDMeshMultiLev::getNumberOfNodes() const throw(INTERP_KERNEL::Exception)
+int MEDMeshMultiLev::getNumberOfNodes() const
 {
   return _nb_nodes;
 }
 
-DataArray *MEDMeshMultiLev::constructDataArray(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs, const DataArray *vals) const throw(INTERP_KERNEL::Exception)
+DataArray *MEDMeshMultiLev::constructDataArray(const MEDFileField1TSStructItem& fst, const MEDFileFieldGlobsReal *globs, const DataArray *vals) const
 {
   if(fst.getType()==ON_NODES)
     {
@@ -254,7 +415,7 @@ DataArray *MEDMeshMultiLev::constructDataArray(const MEDFileField1TSStructItem&
           MEDCouplingAutoRefCountObjectPtr<DataArrayInt> p2(nr->deepCpy());
           p1->sort(true); p2->sort(true);
           if(!p1->isEqualWithoutConsideringStr(*p2))
-            throw INTERP_KERNEL::Exception("MEDMeshMultiLev::constructDataArray : unexpected situation for nodes 3 !");
+            throw INTERP_KERNEL::Exception("MEDMeshMultiLev::constructDataArray : it appears that a profile on nodes does not cover the cells correctly !");
           p1=DataArrayInt::FindPermutationFromFirstToSecond(globs->getProfile(pflName.c_str()),nr);
           MEDCouplingAutoRefCountObjectPtr<DataArray> ret(vals->deepCpy());
           ret->renumberInPlace(p1->begin());
@@ -363,7 +524,7 @@ DataArray *MEDMeshMultiLev::constructDataArray(const MEDFileField1TSStructItem&
               jj=0;
               for(std::vector<const MEDFileField1TSStructItem2 *>::const_iterator it2=ps.begin();it2!=ps.end();it2++,jj++)
                 {
-                  int nbi((*it2)->getNbOfIntegrationPts(globs));
+                  //int nbi((*it2)->getNbOfIntegrationPts(globs));
                   const DataArrayInt *otherPfl((*it2)->getPfl(globs));
                   const std::pair<int,int>& strtStop((*it2)->getStartStop());
                   MEDCouplingAutoRefCountObjectPtr<DataArray> ret2(vals->selectByTupleId2(strtStop.first,strtStop.second,1));
@@ -382,11 +543,11 @@ DataArray *MEDMeshMultiLev::constructDataArray(const MEDFileField1TSStructItem&
     }
 }
 
-MEDMeshMultiLev::MEDMeshMultiLev()
+MEDMeshMultiLev::MEDMeshMultiLev():_nb_nodes(0),_cell_fam_ids_nocpy(false)
 {
 }
 
-MEDMeshMultiLev::MEDMeshMultiLev(int nbNodes, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):_geo_types(gts),_nb_entities(nbEntities),_nb_nodes(nbNodes)
+MEDMeshMultiLev::MEDMeshMultiLev(int nbNodes, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):_geo_types(gts),_nb_entities(nbEntities),_nb_nodes(nbNodes),_cell_fam_ids_nocpy(false),_cell_num_ids_nocpy(false),_node_fam_ids_nocpy(false),_node_num_ids_nocpy(false)
 {
   std::size_t sz(_geo_types.size());
   if(sz!=pfls.size() || sz!=nbEntities.size())
@@ -400,13 +561,13 @@ MEDMeshMultiLev::MEDMeshMultiLev(int nbNodes, const std::vector<INTERP_KERNEL::N
     }
 }
 
-MEDMeshMultiLev::MEDMeshMultiLev(const MEDMeshMultiLev& other):_pfls(other._pfls),_geo_types(other._geo_types),_nb_entities(other._nb_entities),_node_reduction(other._node_reduction),_nb_nodes(other._nb_nodes)
+MEDMeshMultiLev::MEDMeshMultiLev(const MEDMeshMultiLev& other):RefCountObject(other),_pfls(other._pfls),_geo_types(other._geo_types),_nb_entities(other._nb_entities),_node_reduction(other._node_reduction),_nb_nodes(other._nb_nodes),_cell_fam_ids(other._cell_fam_ids),_cell_fam_ids_nocpy(other._cell_fam_ids_nocpy),_cell_num_ids(other._cell_num_ids),_cell_num_ids_nocpy(other._cell_num_ids_nocpy),_node_fam_ids(other._node_fam_ids),_node_fam_ids_nocpy(other._node_fam_ids_nocpy),_node_num_ids(other._node_num_ids),_node_num_ids_nocpy(other._node_num_ids_nocpy)
 {
 }
 
 //=
 
-MEDUMeshMultiLev *MEDUMeshMultiLev::New(const MEDFileUMesh *m, const std::vector<int>& levs) throw(INTERP_KERNEL::Exception)
+MEDUMeshMultiLev *MEDUMeshMultiLev::New(const MEDFileUMesh *m, const std::vector<int>& levs)
 {
   return new MEDUMeshMultiLev(m,levs);
 }
@@ -425,6 +586,7 @@ MEDUMeshMultiLev::MEDUMeshMultiLev(const MEDFileUMesh *m, const std::vector<int>
   _parts.resize(sz);
   _pfls.resize(sz);
   _geo_types.resize(sz);
+  _nb_entities.resize(sz);
   for(std::size_t i=0;i<sz;i++)
     {
       MEDCoupling1GTUMesh *obj(v[i]);
@@ -434,10 +596,77 @@ MEDUMeshMultiLev::MEDUMeshMultiLev(const MEDFileUMesh *m, const std::vector<int>
         throw INTERP_KERNEL::Exception("MEDUMeshMultiLev constructor : presence of a null pointer !");
       _parts[i]=obj;
       _geo_types[i]=obj->getCellModelEnum();
+      _nb_entities[i]=obj->getNumberOfCells();
     }
+  // ids fields management
+  _cell_fam_ids_nocpy=(levs.size()==1);
+  if(_cell_fam_ids_nocpy)
+    {
+      const DataArrayInt *tmp(m->getFamilyFieldAtLevel(levs[0]));
+      if(tmp)
+        {
+          tmp->incrRef();
+          _cell_fam_ids=(const_cast<DataArrayInt *>(tmp));
+        }
+    }
+  else
+    {
+      std::vector<const DataArrayInt *> tmps(levs.size());
+      bool f(true);
+      for(std::size_t i=0;i<levs.size();i++)
+        {
+          tmps[i]=m->getFamilyFieldAtLevel(levs[i]);
+          if(!tmps[i])
+            f=false;
+        }
+      if(f)
+        _cell_fam_ids=DataArrayInt::Aggregate(tmps);
+    }
+  _cell_num_ids_nocpy=(levs.size()==1);
+  if(_cell_num_ids_nocpy)
+    {
+      const DataArrayInt *tmp(m->getNumberFieldAtLevel(levs[0]));
+      if(tmp)
+        {
+          tmp->incrRef();
+          _cell_num_ids=(const_cast<DataArrayInt *>(tmp));
+        }
+    }
+  else
+    {
+      std::vector<const DataArrayInt *> tmps(levs.size());
+      bool n(true);
+      for(std::size_t i=0;i<levs.size();i++)
+        {
+          tmps[i]=m->getNumberFieldAtLevel(levs[i]);
+          if(!tmps[i])
+            n=false;
+        }
+      if(n)
+        _cell_num_ids=DataArrayInt::Aggregate(tmps);
+    }
+  // node part
+  _node_fam_ids_nocpy=true;
+  {
+    const DataArrayInt *tmp(m->getFamilyFieldAtLevel(1));
+    if(tmp)
+      {
+        tmp->incrRef();
+        _node_fam_ids=(const_cast<DataArrayInt *>(tmp));
+      }
+  }
+  _node_num_ids_nocpy=true;
+  {
+    const DataArrayInt *tmp(m->getNumberFieldAtLevel(1));
+    if(tmp)
+      {
+        tmp->incrRef();
+        _node_num_ids=(const_cast<DataArrayInt *>(tmp));
+      }
+  }
 }
 
-MEDUMeshMultiLev *MEDUMeshMultiLev::New(const MEDFileUMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities) throw(INTERP_KERNEL::Exception)
+MEDUMeshMultiLev *MEDUMeshMultiLev::New(const MEDFileUMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities)
 {
   return new MEDUMeshMultiLev(m,gts,pfls,nbEntities);
 }
@@ -445,17 +674,83 @@ MEDUMeshMultiLev *MEDUMeshMultiLev::New(const MEDFileUMesh *m, const std::vector
 MEDUMeshMultiLev::MEDUMeshMultiLev(const MEDFileUMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDMeshMultiLev(m->getNumberOfNodes(),gts,pfls,nbEntities)
 {
   std::size_t sz(gts.size());
+  if(sz<1)
+    throw INTERP_KERNEL::Exception("constructor of MEDUMeshMultiLev : number of different geo type must be >= 1 !");
+  unsigned dim(INTERP_KERNEL::CellModel::GetCellModel(gts[0]).getDimension());
   _parts.resize(sz);
+  bool isSameDim(true),isNoPfl(true);
   for(std::size_t i=0;i<sz;i++)
     {
       MEDCoupling1GTUMesh *elt(m->getDirectUndergroundSingleGeoTypeMesh(gts[i]));
+      if(INTERP_KERNEL::CellModel::GetCellModel(gts[i]).getDimension()!=dim)
+        isSameDim=false;
+      if(pfls[i])
+        isNoPfl=false;
       if(elt)
         elt->incrRef();
       _parts[i]=elt;
     }
+  // ids fields management
+  int lev((int)dim-m->getMeshDimension());
+  if(isSameDim && isNoPfl && m->getGeoTypesAtLevel(lev)==gts)//optimized part
+    {
+      _cell_fam_ids_nocpy=true;
+      const DataArrayInt *famIds(m->getFamilyFieldAtLevel(lev));
+      if(famIds)
+        { _cell_fam_ids=const_cast<DataArrayInt*>(famIds); famIds->incrRef(); }
+      _cell_num_ids_nocpy=true;
+      const DataArrayInt *numIds(m->getNumberFieldAtLevel(lev));
+      if(numIds)
+        { _cell_num_ids=const_cast<DataArrayInt*>(numIds); numIds->incrRef(); }
+      _node_fam_ids_nocpy=true;
+      famIds=m->getFamilyFieldAtLevel(1);
+      if(famIds)
+        { _node_fam_ids=const_cast<DataArrayInt*>(famIds); famIds->incrRef(); }
+      _node_num_ids_nocpy=true;
+      numIds=m->getNumberFieldAtLevel(1);
+      if(numIds)
+        { _node_num_ids=const_cast<DataArrayInt*>(numIds); numIds->incrRef(); }
+      return ;
+    }
+  //
+  _cell_fam_ids_nocpy=false;
+  std::vector< MEDCouplingAutoRefCountObjectPtr<DataArrayInt> > famIdsSafe(sz);
+  std::vector<const DataArrayInt *> famIds(sz);
+  bool f(true);
+  for(std::size_t i=0;i<sz;i++)
+    {
+      famIdsSafe[i]=m->extractFamilyFieldOnGeoType(gts[i]);
+      famIds[i]=famIdsSafe[i];
+      if(!famIds[i])
+        f=false;
+    }
+  if(f)
+    _cell_fam_ids=DataArrayInt::Aggregate(famIds);
+  _cell_num_ids_nocpy=false;
+  std::vector< MEDCouplingAutoRefCountObjectPtr<DataArrayInt> > numIdsSafe(sz);
+  std::vector<const DataArrayInt *> numIds(sz);
+  bool n(true);
+  for(std::size_t i=0;i<sz;i++)
+    {
+      numIdsSafe[i]=m->extractNumberFieldOnGeoType(gts[i]);
+      numIds[i]=numIdsSafe[i];
+      if(!numIds[i])
+        n=false;
+    }
+  if(n)
+    _cell_num_ids=DataArrayInt::Aggregate(numIds);
+  // node ids management
+  _node_fam_ids_nocpy=true;
+  const DataArrayInt *nodeFamIds(m->getFamilyFieldAtLevel(1));
+  if(nodeFamIds)
+    { _node_fam_ids=const_cast<DataArrayInt*>(nodeFamIds); nodeFamIds->incrRef(); }
+  _node_num_ids_nocpy=true;
+  const DataArrayInt *nodeNumIds(m->getNumberFieldAtLevel(1));
+  if(nodeNumIds)
+    { _node_num_ids=const_cast<DataArrayInt*>(nodeNumIds); nodeNumIds->incrRef(); }
 }
 
-void MEDUMeshMultiLev::selectPartOfNodes(const DataArrayInt *pflNodes) throw(INTERP_KERNEL::Exception)
+void MEDUMeshMultiLev::selectPartOfNodes(const DataArrayInt *pflNodes)
 {
    if(!pflNodes || !pflNodes->isAllocated())
      return ;
@@ -486,7 +781,7 @@ void MEDUMeshMultiLev::selectPartOfNodes(const DataArrayInt *pflNodes) throw(INT
    _node_reduction=_node_reduction->buildUnique();
 }
 
-MEDMeshMultiLev *MEDUMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDUMeshMultiLev::prepare() const
 {
   return new MEDUMeshMultiLev(*this);
 }
@@ -504,7 +799,11 @@ MEDUMeshMultiLev::MEDUMeshMultiLev(const MEDStructuredMeshMultiLev& other, const
   _pfls.resize(1); _pfls[0]=0;
 }
 
-void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *&types, DataArrayInt *&cellLocations, DataArrayInt *& cells, DataArrayInt *&faceLocations, DataArrayInt *&faces) const throw(INTERP_KERNEL::Exception)
+/*! 
+ * If returned value is false output pointer \a coords is not the internal pointer. If returned value is true output pointer \a coords is directly the internal pointer.
+ * If true is returned, the \a coords output parameter should be used with care (non const method call) to avoid to change the internal state of MEDFileUMesh instance.
+ */
+bool MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *&types, DataArrayInt *&cellLocations, DataArrayInt *& cells, DataArrayInt *&faceLocations, DataArrayInt *&faces) const
 {
   if(_parts.empty())
     throw INTERP_KERNEL::Exception("MEDUMeshMultiLev::getVTUArrays : empty array !");
@@ -537,8 +836,8 @@ void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *
       else
         {
           isPolyh=true;
-          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(cur->computeEffectiveNbOfNodesPerCell());
-          szD+=tmp->accumulate(0)+curNbCells;
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp2(cur->computeEffectiveNbOfNodesPerCell());
+          szD+=tmp2->accumulate(0)+curNbCells;
           szF+=2*curNbCells+cur->getNodalConnectivity()->getNumberOfTuples();
         }
     }
@@ -566,7 +865,7 @@ void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *
       if(gt<0 || gt>=PARAMEDMEM_2_VTKTYPE_LGTH)
         throw INTERP_KERNEL::Exception("MEDUMeshMultiLev::getVTUArrays : invalid geometric type !");
       unsigned char gtvtk(PARAMEDMEM_2_VTKTYPE[gt]);
-      if(gtvtk==-1)
+      if(gtvtk==255)
         throw INTERP_KERNEL::Exception("MEDUMeshMultiLev::getVTUArrays : no VTK type for the requested INTERP_KERNEL geometric type !");
       std::fill(bPtr,bPtr+curNbCells,gtvtk); bPtr+=curNbCells;
       const MEDCoupling1SGTUMesh *scur(dynamic_cast<const MEDCoupling1SGTUMesh *>(cur));
@@ -581,7 +880,7 @@ void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *
             {
               *dPtr++=nnpc;
               dPtr=std::copy(connPtr,connPtr+nnpc,dPtr);
-              *cPtr=k+nnpc; k=*cPtr++;
+              *cPtr++=k; k+=nnpc+1;
             }
           if(isPolyh)
             { std::fill(ePtr,ePtr+curNbCells,-1); ePtr+=curNbCells; }
@@ -595,7 +894,7 @@ void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *
                 {
                   *dPtr++=connIPtr[1]-connIPtr[0];
                   dPtr=std::copy(connPtr+connIPtr[0],connPtr+connIPtr[1],dPtr);
-                  *cPtr=k+connIPtr[1]-connIPtr[0]; k=*cPtr++;
+                  *cPtr++=k; k+=connIPtr[1]-connIPtr[0];
                 }
             }
           else
@@ -605,7 +904,7 @@ void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *
                   std::set<int> s(connPtr+connIPtr[0],connPtr+connIPtr[1]); s.erase(-1);
                   *dPtr++=(int)s.size();
                   dPtr=std::copy(s.begin(),s.end(),dPtr);
-                  *cPtr=k+(int)s.size(); k=*cPtr++;
+                  *cPtr++=k; k+=(int)s.size()+1;
                 }
             }
           if(isPolyh)
@@ -638,14 +937,17 @@ void MEDUMeshMultiLev::buildVTUArrays(DataArrayDouble *& coords, DataArrayByte *
     reorderNodesIfNecessary(a,d,0);
   else
     reorderNodesIfNecessary(a,d,f);
+  if(a->getNumberOfComponents()!=3)
+    a=a->changeNbOfComponents(3,0.);
   coords=a.retn(); types=b.retn(); cellLocations=c.retn(); cells=d.retn();
   if(!isPolyh)
     { faceLocations=0; faces=0; }
   else
     { faceLocations=e.retn(); faces=f.retn(); }
+  return tmp==((DataArrayDouble *)a);
 }
 
-void MEDUMeshMultiLev::reorderNodesIfNecessary(MEDCouplingAutoRefCountObjectPtr<DataArrayDouble>& coords, DataArrayInt *nodalConnVTK, DataArrayInt *polyhedNodalConnVTK) const throw(INTERP_KERNEL::Exception)
+void MEDUMeshMultiLev::reorderNodesIfNecessary(MEDCouplingAutoRefCountObjectPtr<DataArrayDouble>& coords, DataArrayInt *nodalConnVTK, DataArrayInt *polyhedNodalConnVTK) const
 {
   const DataArrayInt *nr(_node_reduction);
   if(!nr)
@@ -722,15 +1024,83 @@ void MEDUMeshMultiLev::reorderNodesIfNecessary(MEDCouplingAutoRefCountObjectPtr<
 
 //=
 
-MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev()
+MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev():_is_internal(true)
 {
 }
 
-MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev(int nbOfNodes, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDMeshMultiLev(nbOfNodes,gts,pfls,nbEntities)
+MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev(const MEDFileStructuredMesh *m, const std::vector<int>& lev):_is_internal(true)
 {
+  // ids fields management
+  _cell_fam_ids_nocpy=true; _cell_num_ids_nocpy=true;
+  const DataArrayInt *tmp(0);
+  tmp=m->getFamilyFieldAtLevel(0);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _cell_fam_ids=const_cast<DataArrayInt *>(tmp);
+    }
+  tmp=m->getNumberFieldAtLevel(0);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _cell_num_ids=const_cast<DataArrayInt *>(tmp);
+    }
+  //
+  _node_fam_ids_nocpy=true; _node_num_ids_nocpy=true;
+  tmp=0;
+  tmp=m->getFamilyFieldAtLevel(1);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _node_fam_ids=const_cast<DataArrayInt *>(tmp);
+    }
+  tmp=m->getNumberFieldAtLevel(1);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _node_num_ids=const_cast<DataArrayInt *>(tmp);
+    }
+}
+
+MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev(const MEDFileStructuredMesh *m, int nbOfNodes, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDMeshMultiLev(nbOfNodes,gts,pfls,nbEntities),_is_internal(true)
+{
+  // ids fields management
+  _cell_fam_ids_nocpy=true; _cell_num_ids_nocpy=true;
+  const DataArrayInt *tmp(0);
+  tmp=m->getFamilyFieldAtLevel(0);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _cell_fam_ids=const_cast<DataArrayInt *>(tmp);
+    }
+  tmp=m->getNumberFieldAtLevel(0);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _cell_num_ids=const_cast<DataArrayInt *>(tmp);
+    }
+  //
+  _node_fam_ids_nocpy=true; _node_num_ids_nocpy=true;
+  tmp=0;
+  tmp=m->getFamilyFieldAtLevel(1);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _node_fam_ids=const_cast<DataArrayInt *>(tmp);
+    }
+  tmp=m->getNumberFieldAtLevel(1);
+  if(tmp)
+    {
+      tmp->incrRef();
+      _node_num_ids=const_cast<DataArrayInt *>(tmp);
+    }
 }
 
-void MEDStructuredMeshMultiLev::selectPartOfNodes(const DataArrayInt *pflNodes) throw(INTERP_KERNEL::Exception)
+MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev(const MEDStructuredMeshMultiLev& other):MEDMeshMultiLev(other),_is_internal(true)
+{
+}
+
+void MEDStructuredMeshMultiLev::selectPartOfNodes(const DataArrayInt *pflNodes)
 {
   if(!pflNodes || !pflNodes->isAllocated())
     return ;
@@ -755,40 +1125,37 @@ void MEDStructuredMeshMultiLev::selectPartOfNodes(const DataArrayInt *pflNodes)
     _pfls[0]=cellIdsSafe;
 }
 
-MEDStructuredMeshMultiLev::MEDStructuredMeshMultiLev(const MEDStructuredMeshMultiLev& other):MEDMeshMultiLev(other)
-{
-}
-
 //=
 
-MEDCMeshMultiLev *MEDCMeshMultiLev::New(const MEDFileCMesh *m, const std::vector<int>& levs) throw(INTERP_KERNEL::Exception)
+MEDCMeshMultiLev *MEDCMeshMultiLev::New(const MEDFileCMesh *m, const std::vector<int>& levs)
 {
   return new MEDCMeshMultiLev(m,levs);
 }
 
-MEDCMeshMultiLev *MEDCMeshMultiLev::New(const MEDFileCMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities) throw(INTERP_KERNEL::Exception)
+MEDCMeshMultiLev *MEDCMeshMultiLev::New(const MEDFileCMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities)
 {
   return new MEDCMeshMultiLev(m,gts,pfls,nbEntities);
 }
 
-MEDCMeshMultiLev::MEDCMeshMultiLev(const MEDFileCMesh *m, const std::vector<int>& levs)
+MEDCMeshMultiLev::MEDCMeshMultiLev(const MEDFileCMesh *m, const std::vector<int>& levs):MEDStructuredMeshMultiLev(m,levs)
 {
   if(!m)
     throw INTERP_KERNEL::Exception("MEDCMeshMultiLev constructor : null input pointer !");
   if(levs.size()!=1 || levs[0]!=0)
     throw INTERP_KERNEL::Exception("MEDCMeshMultiLev constructor : levels supported is 0 only !");
-  int mdim(MEDCouplingStructuredMesh::GetGeoTypeGivenMeshDimension(m->getMeshDimension()));
-  _coords.resize(mdim);
-  for(int i=0;i<mdim;i++)
+  int sdim(m->getSpaceDimension());
+  _coords.resize(sdim);
+  for(int i=0;i<sdim;i++)
     {
       DataArrayDouble *elt(const_cast<DataArrayDouble *>(m->getMesh()->getCoordsAt(i)));
       if(!elt)
         throw INTERP_KERNEL::Exception("MEDCMeshMultiLev constructor 2 : presence of null pointer for an vector of double along an axis !");
+      elt->incrRef();
       _coords[i]=elt;
     }
 }
 
-MEDCMeshMultiLev::MEDCMeshMultiLev(const MEDFileCMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDStructuredMeshMultiLev(m->getNumberOfNodes(),gts,pfls,nbEntities)
+MEDCMeshMultiLev::MEDCMeshMultiLev(const MEDFileCMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDStructuredMeshMultiLev(m,m->getNumberOfNodes(),gts,pfls,nbEntities)
 {
   if(!m)
     throw INTERP_KERNEL::Exception("MEDCMeshMultiLev constructor 2 : null input pointer !");
@@ -812,7 +1179,7 @@ MEDCMeshMultiLev::MEDCMeshMultiLev(const MEDCMeshMultiLev& other):MEDStructuredM
 {
 }
 
-std::vector<int> MEDCMeshMultiLev::getNodeGridStructure() const throw(INTERP_KERNEL::Exception)
+std::vector<int> MEDCMeshMultiLev::getNodeGridStructure() const
 {
   std::vector<int> ret(_coords.size());
   for(std::size_t i=0;i<_coords.size();i++)
@@ -820,9 +1187,11 @@ std::vector<int> MEDCMeshMultiLev::getNodeGridStructure() const throw(INTERP_KER
   return ret;
 }
 
-MEDMeshMultiLev *MEDCMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDCMeshMultiLev::prepare() const
 {
-  const DataArrayInt *pfl(_pfls[0]),*nr(_node_reduction);
+  const DataArrayInt *pfl(0),*nr(_node_reduction);
+  if(!_pfls.empty())
+    pfl=_pfls[0];
   MEDCouplingAutoRefCountObjectPtr<DataArrayInt> nnr;
   std::vector<int> cgs,ngs(getNodeGridStructure());
   cgs.resize(ngs.size());
@@ -830,9 +1199,11 @@ MEDMeshMultiLev *MEDCMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exceptio
   if(pfl)
     {
       std::vector< std::pair<int,int> > cellParts;
+      MEDCouplingAutoRefCountObjectPtr<MEDMeshMultiLev> ret2;
       if(MEDCouplingStructuredMesh::IsPartStructured(pfl->begin(),pfl->end(),cgs,cellParts))
         {
           MEDCouplingAutoRefCountObjectPtr<MEDCMeshMultiLev> ret(new MEDCMeshMultiLev(*this));
+          ret->_is_internal=false;
           if(nr)
             { nnr=nr->deepCpy(); nnr->sort(true); ret->setNodeReduction(nnr); }
           ret->_nb_entities[0]=pfl->getNumberOfTuples();
@@ -841,7 +1212,7 @@ MEDMeshMultiLev *MEDCMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exceptio
           for(std::size_t i=0;i<_coords.size();i++)
             coords[i]=_coords[i]->selectByTupleId2(cellParts[i].first,cellParts[i].second+1,1);
           ret->_coords=coords;
-          return ret.retn();
+          ret2=(MEDCMeshMultiLev *)ret; ret2->incrRef();
         }
       else
         {
@@ -853,8 +1224,21 @@ MEDMeshMultiLev *MEDCMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exceptio
           MEDCouplingAutoRefCountObjectPtr<MEDUMeshMultiLev> ret(new MEDUMeshMultiLev(*this,m3));
           if(nr)
             { m3->zipCoords(); nnr=nr->deepCpy(); nnr->sort(true); ret->setNodeReduction(nnr); }
-          return ret.retn();
+          ret2=(MEDUMeshMultiLev *)ret; ret2->incrRef();
+        }
+      const DataArrayInt *famIds(_cell_fam_ids),*numIds(_cell_num_ids);
+      if(famIds)
+        {
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(famIds->selectByTupleIdSafe(pfl->begin(),pfl->end()));
+          ret2->setFamilyIdsOnCells(tmp,false);
+        }
+      if(numIds)
+        {
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(numIds->selectByTupleIdSafe(pfl->begin(),pfl->end()));
+          ret2->setNumberIdsOnCells(tmp,false);
         }
+      return ret2.retn();
+      
     }
   else
     {
@@ -865,8 +1249,12 @@ MEDMeshMultiLev *MEDCMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exceptio
     }
 }
 
-std::vector< DataArrayDouble * > MEDCMeshMultiLev::buildVTUArrays() const throw(INTERP_KERNEL::Exception)
+/*!
+ * \a param [out] isInternal if true the returned pointers are those in main data structure. If false those pointers have been built espacially for that method.
+ */
+std::vector< DataArrayDouble * > MEDCMeshMultiLev::buildVTUArrays(bool& isInternal) const
 {
+  isInternal=_is_internal;
   std::size_t sz(_coords.size());
   std::vector< DataArrayDouble * > ret(sz);
   for(std::size_t i=0;i<sz;i++)
@@ -879,17 +1267,17 @@ std::vector< DataArrayDouble * > MEDCMeshMultiLev::buildVTUArrays() const throw(
 
 //=
 
-MEDCurveLinearMeshMultiLev *MEDCurveLinearMeshMultiLev::New(const MEDFileCurveLinearMesh *m, const std::vector<int>& levs) throw(INTERP_KERNEL::Exception)
+MEDCurveLinearMeshMultiLev *MEDCurveLinearMeshMultiLev::New(const MEDFileCurveLinearMesh *m, const std::vector<int>& levs)
 {
   return new MEDCurveLinearMeshMultiLev(m,levs);
 }
 
-MEDCurveLinearMeshMultiLev *MEDCurveLinearMeshMultiLev::New(const MEDFileCurveLinearMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities) throw(INTERP_KERNEL::Exception)
+MEDCurveLinearMeshMultiLev *MEDCurveLinearMeshMultiLev::New(const MEDFileCurveLinearMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities)
 {
   return new MEDCurveLinearMeshMultiLev(m,gts,pfls,nbEntities);
 }
 
-MEDCurveLinearMeshMultiLev::MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearMesh *m, const std::vector<int>& levs)
+MEDCurveLinearMeshMultiLev::MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearMesh *m, const std::vector<int>& levs):MEDStructuredMeshMultiLev(m,levs)
 {
   if(!m)
     throw INTERP_KERNEL::Exception("MEDCurveLinearMeshMultiLev constructor : null input pointer !");
@@ -903,7 +1291,7 @@ MEDCurveLinearMeshMultiLev::MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearM
   _structure=m->getMesh()->getNodeGridStructure();
 }
 
-MEDCurveLinearMeshMultiLev::MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDStructuredMeshMultiLev(m->getNumberOfNodes(),gts,pfls,nbEntities)
+MEDCurveLinearMeshMultiLev::MEDCurveLinearMeshMultiLev(const MEDFileCurveLinearMesh *m, const std::vector<INTERP_KERNEL::NormalizedCellType>& gts, const std::vector<const DataArrayInt *>& pfls, const std::vector<int>& nbEntities):MEDStructuredMeshMultiLev(m,m->getNumberOfNodes(),gts,pfls,nbEntities)
 {
   if(!m)
     throw INTERP_KERNEL::Exception("MEDCurveLinearMeshMultiLev constructor 2 : null input pointer !");
@@ -924,14 +1312,16 @@ MEDCurveLinearMeshMultiLev::MEDCurveLinearMeshMultiLev(const MEDCurveLinearMeshM
 {
 }
 
-std::vector<int> MEDCurveLinearMeshMultiLev::getNodeGridStructure() const throw(INTERP_KERNEL::Exception)
+std::vector<int> MEDCurveLinearMeshMultiLev::getNodeGridStructure() const
 {
   return _structure;
 }
 
-MEDMeshMultiLev *MEDCurveLinearMeshMultiLev::prepare() const throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDCurveLinearMeshMultiLev::prepare() const
 {
-  const DataArrayInt *pfl(_pfls[0]),*nr(_node_reduction);
+  const DataArrayInt *pfl(0),*nr(_node_reduction);
+  if(!_pfls.empty())
+    pfl=_pfls[0];
   MEDCouplingAutoRefCountObjectPtr<DataArrayInt> nnr;
   std::vector<int> cgs,ngs(getNodeGridStructure());
   cgs.resize(ngs.size());
@@ -939,6 +1329,7 @@ MEDMeshMultiLev *MEDCurveLinearMeshMultiLev::prepare() const throw(INTERP_KERNEL
   if(pfl)
     {
       std::vector< std::pair<int,int> > cellParts,nodeParts;
+      MEDCouplingAutoRefCountObjectPtr<MEDMeshMultiLev> ret2;
       if(MEDCouplingStructuredMesh::IsPartStructured(pfl->begin(),pfl->end(),cgs,cellParts))
         {
           nodeParts=cellParts;
@@ -950,13 +1341,14 @@ MEDMeshMultiLev *MEDCurveLinearMeshMultiLev::prepare() const throw(INTERP_KERNEL
             }
           MEDCouplingAutoRefCountObjectPtr<DataArrayInt> p(MEDCouplingStructuredMesh::BuildExplicitIdsFrom(ngs,nodeParts));
           MEDCouplingAutoRefCountObjectPtr<MEDCurveLinearMeshMultiLev> ret(new MEDCurveLinearMeshMultiLev(*this));
+          ret->_is_internal=false;
           if(nr)
             { nnr=nr->deepCpy(); nnr->sort(true); ret->setNodeReduction(nnr); }
           ret->_nb_entities[0]=pfl->getNumberOfTuples();
           ret->_pfls[0]=0;
           ret->_coords=_coords->selectByTupleIdSafe(p->begin(),p->end());
           ret->_structure=st;
-          return ret.retn();
+          ret2=(MEDCurveLinearMeshMultiLev *)ret; ret2->incrRef();
         }
       else
         {
@@ -967,8 +1359,20 @@ MEDMeshMultiLev *MEDCurveLinearMeshMultiLev::prepare() const throw(INTERP_KERNEL
           MEDCouplingAutoRefCountObjectPtr<MEDUMeshMultiLev> ret(new MEDUMeshMultiLev(*this,m3));
           if(nr)
             { m3->zipCoords(); nnr=nr->deepCpy(); nnr->sort(true); ret->setNodeReduction(nnr); }
-          return ret.retn();
+          ret2=(MEDUMeshMultiLev *)ret; ret2->incrRef();
+        }
+      const DataArrayInt *famIds(_cell_fam_ids),*numIds(_cell_num_ids);
+      if(famIds)
+        {
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(famIds->selectByTupleIdSafe(pfl->begin(),pfl->end()));
+          ret2->setFamilyIdsOnCells(tmp,false);
+        }
+      if(numIds)
+        {
+          MEDCouplingAutoRefCountObjectPtr<DataArrayInt> tmp(numIds->selectByTupleIdSafe(pfl->begin(),pfl->end()));
+          ret2->setNumberIdsOnCells(tmp,false);
         }
+      return ret2.retn();
     }
   else
     {
@@ -979,8 +1383,9 @@ MEDMeshMultiLev *MEDCurveLinearMeshMultiLev::prepare() const throw(INTERP_KERNEL
     }
 }
 
-void MEDCurveLinearMeshMultiLev::buildVTUArrays(DataArrayDouble *&coords, std::vector<int>& nodeStrct) const throw(INTERP_KERNEL::Exception)
+void MEDCurveLinearMeshMultiLev::buildVTUArrays(DataArrayDouble *&coords, std::vector<int>& nodeStrct, bool& isInternal) const
 {
+  isInternal=_is_internal;
   nodeStrct=_structure;
   const DataArrayDouble *coo(_coords);
   if(!coo)
@@ -999,20 +1404,20 @@ MEDFileField1TSStructItem2::MEDFileField1TSStructItem2(INTERP_KERNEL::Normalized
   _pfl->setName(c.c_str());
 }
 
-void MEDFileField1TSStructItem2::checkWithMeshStructForCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+void MEDFileField1TSStructItem2::checkWithMeshStructForCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs)
 {
   int nbOfEnt=mst->getNumberOfElemsOfGeoType(_geo_type);
   checkInRange(nbOfEnt,1,globs);
 }
 
-void MEDFileField1TSStructItem2::checkWithMeshStructForGaussNE(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+void MEDFileField1TSStructItem2::checkWithMeshStructForGaussNE(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs)
 {
   int nbOfEnt=mst->getNumberOfElemsOfGeoType(_geo_type);
   const INTERP_KERNEL::CellModel& cm=INTERP_KERNEL::CellModel::GetCellModel(_geo_type);
   checkInRange(nbOfEnt,(int)cm.getNumberOfNodes(),globs);
 }
 
-void MEDFileField1TSStructItem2::checkWithMeshStructForGaussPT(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+void MEDFileField1TSStructItem2::checkWithMeshStructForGaussPT(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs)
 {
   if(!globs)
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem2::checkWithMeshStructForGaussPT : no globals specified !");
@@ -1061,7 +1466,7 @@ const DataArrayInt *MEDFileField1TSStructItem2::getPfl(const MEDFileFieldGlobsRe
  * \param [in] nbOfEntity - number of entity that can be either cells or nodes. Not other possiblity.
  * \param [in] nip - number of integration points. 1 for ON_CELLS and NO_NODES
  */
-void MEDFileField1TSStructItem2::checkInRange(int nbOfEntity, int nip, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+void MEDFileField1TSStructItem2::checkInRange(int nbOfEntity, int nip, const MEDFileFieldGlobsReal *globs)
 {
   _nb_of_entity=nbOfEntity;
   if(_pfl->getName().empty())
@@ -1081,7 +1486,7 @@ void MEDFileField1TSStructItem2::checkInRange(int nbOfEntity, int nip, const MED
     }
 }
 
-bool MEDFileField1TSStructItem2::isFastlyEqual(int& startExp, INTERP_KERNEL::NormalizedCellType gt, const char *pflName) const
+bool MEDFileField1TSStructItem2::isFastlyEqual(int& startExp, INTERP_KERNEL::NormalizedCellType gt, const std::string& pflName) const
 {
   if(startExp!=_start_end.first)
     return false;
@@ -1100,7 +1505,7 @@ bool MEDFileField1TSStructItem2::operator==(const MEDFileField1TSStructItem2& ot
   return _geo_type==other._geo_type && _start_end==other._start_end && _pfl->getName()==other._pfl->getName();
 }
 
-bool MEDFileField1TSStructItem2::isCellSupportEqual(const MEDFileField1TSStructItem2& other, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStructItem2::isCellSupportEqual(const MEDFileField1TSStructItem2& other, const MEDFileFieldGlobsReal *globs) const
 {
   if(_geo_type!=other._geo_type)
     return false;
@@ -1114,7 +1519,7 @@ bool MEDFileField1TSStructItem2::isCellSupportEqual(const MEDFileField1TSStructI
   return pfl1->isEqualWithoutConsideringStr(*pfl2);
 }
 
-bool MEDFileField1TSStructItem2::isNodeSupportEqual(const MEDFileField1TSStructItem2& other, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStructItem2::isNodeSupportEqual(const MEDFileField1TSStructItem2& other, const MEDFileFieldGlobsReal *globs) const
 {
   return isCellSupportEqual(other,globs);
 }
@@ -1122,7 +1527,7 @@ bool MEDFileField1TSStructItem2::isNodeSupportEqual(const MEDFileField1TSStructI
 /*!
  * \a objs must be non empty. \a objs should contain items having same geometric type.
  */
-MEDFileField1TSStructItem2 MEDFileField1TSStructItem2::BuildAggregationOf(const std::vector<const MEDFileField1TSStructItem2 *>& objs, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+MEDFileField1TSStructItem2 MEDFileField1TSStructItem2::BuildAggregationOf(const std::vector<const MEDFileField1TSStructItem2 *>& objs, const MEDFileFieldGlobsReal *globs)
 {
   if(objs.empty())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem2::BuildAggregationOf : empty input !");
@@ -1190,7 +1595,7 @@ MEDFileField1TSStructItem::MEDFileField1TSStructItem(TypeOfField a, const std::v
 {
 }
 
-void MEDFileField1TSStructItem::checkWithMeshStruct(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+void MEDFileField1TSStructItem::checkWithMeshStruct(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs)
 {
   switch(_type)
     {
@@ -1237,7 +1642,7 @@ bool MEDFileField1TSStructItem::operator==(const MEDFileField1TSStructItem& othe
   return true;
 }
 
-bool MEDFileField1TSStructItem::isCellSupportEqual(const MEDFileField1TSStructItem& other, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStructItem::isCellSupportEqual(const MEDFileField1TSStructItem& other, const MEDFileFieldGlobsReal *globs) const
 {
   if(_type!=other._type)
     return false;
@@ -1249,7 +1654,7 @@ bool MEDFileField1TSStructItem::isCellSupportEqual(const MEDFileField1TSStructIt
   return true;
 }
 
-bool MEDFileField1TSStructItem::isNodeSupportEqual(const MEDFileField1TSStructItem& other, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStructItem::isNodeSupportEqual(const MEDFileField1TSStructItem& other, const MEDFileFieldGlobsReal *globs) const
 {
   if(_type!=other._type)
     return false;
@@ -1278,7 +1683,7 @@ private:
   INTERP_KERNEL::NormalizedCellType _geo_type;
 };
 
-MEDFileField1TSStructItem MEDFileField1TSStructItem::simplifyMeOnCellEntity(const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+MEDFileField1TSStructItem MEDFileField1TSStructItem::simplifyMeOnCellEntity(const MEDFileFieldGlobsReal *globs) const
 {
   if(!isEntityCell())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem::simplifyMeOnCellEntity : must be on ON_CELLS, ON_GAUSS_NE or ON_GAUSS_PT !");
@@ -1316,7 +1721,7 @@ MEDFileField1TSStructItem MEDFileField1TSStructItem::simplifyMeOnCellEntity(cons
 /*!
  * \a this is expected to be ON_CELLS and simplified.
  */
-bool MEDFileField1TSStructItem::isCompatibleWithNodesDiscr(const MEDFileField1TSStructItem& other, const MEDFileMeshStruct *meshSt, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStructItem::isCompatibleWithNodesDiscr(const MEDFileField1TSStructItem& other, const MEDFileMeshStruct *meshSt, const MEDFileFieldGlobsReal *globs) const
 {
   if(other._type!=ON_NODES)
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem::isCompatibleWithNodesDiscr : other must be on nodes !");
@@ -1349,7 +1754,7 @@ bool MEDFileField1TSStructItem::isCompatibleWithNodesDiscr(const MEDFileField1TS
     }
 }
 
-bool MEDFileField1TSStructItem::isFullyOnOneLev(const MEDFileMeshStruct *meshSt, int& theFirstLevFull) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStructItem::isFullyOnOneLev(const MEDFileMeshStruct *meshSt, int& theFirstLevFull) const
 {
   if(_type!=ON_CELLS)
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem::isFullyOnOneLev : works only for ON_CELLS discretization !");
@@ -1360,7 +1765,6 @@ bool MEDFileField1TSStructItem::isFullyOnOneLev(const MEDFileMeshStruct *meshSt,
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem::isFullyOnOneLev : no levels in input mesh structure !");
   std::vector<int> levs(nbOfLevs);
   theFirstLevFull=1;
-  int nbOfGT=0;
   std::set<INTERP_KERNEL::NormalizedCellType> gts;
   for(std::vector< MEDFileField1TSStructItem2 >::const_iterator it=_items.begin();it!=_items.end();it++)
     {
@@ -1381,7 +1785,7 @@ bool MEDFileField1TSStructItem::isFullyOnOneLev(const MEDFileMeshStruct *meshSt,
 
 const MEDFileField1TSStructItem2& MEDFileField1TSStructItem::operator[](std::size_t i) const throw(INTERP_KERNEL::Exception)
 {
-  if(i<0 || i>=_items.size())
+  if(i>=_items.size())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStructItem::operator[] : input is not in valid range !");
   return _items[i];
 }
@@ -1400,7 +1804,7 @@ std::vector<const BigMemoryObject *> MEDFileField1TSStructItem::getDirectChildre
   return ret;
 }
 
-MEDMeshMultiLev *MEDFileField1TSStructItem::buildFromScratchDataSetSupportOnCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDFileField1TSStructItem::buildFromScratchDataSetSupportOnCells(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) const
 {
   std::size_t sz(_items.size());
   std::vector<INTERP_KERNEL::NormalizedCellType> a0(sz);
@@ -1424,7 +1828,7 @@ MEDFileField1TSStructItem MEDFileField1TSStructItem::BuildItemFrom(const MEDFile
   std::vector< std::vector<std::string> > pfls,locs;
   std::vector< std::vector<TypeOfField> > typesF;
   std::vector<INTERP_KERNEL::NormalizedCellType> geoTypes;
-  std::vector< std::vector<std::pair<int,int> > > strtEnds=ref->getFieldSplitedByType(0,geoTypes,typesF,pfls,locs);
+  std::vector< std::vector<std::pair<int,int> > > strtEnds=ref->getFieldSplitedByType(std::string(),geoTypes,typesF,pfls,locs);
   std::size_t nbOfGeoTypes(geoTypes.size());
   if(nbOfGeoTypes==0)
     throw INTERP_KERNEL::Exception("MEDFileField1TSStruct : not null by empty ref  !");
@@ -1454,7 +1858,7 @@ MEDFileField1TSStructItem MEDFileField1TSStructItem::BuildItemFrom(const MEDFile
 
 //=
 
-MEDFileField1TSStruct *MEDFileField1TSStruct::New(const MEDFileAnyTypeField1TS *ref, MEDFileMeshStruct *mst) throw(INTERP_KERNEL::Exception)
+MEDFileField1TSStruct *MEDFileField1TSStruct::New(const MEDFileAnyTypeField1TS *ref, MEDFileMeshStruct *mst)
 {
   return new MEDFileField1TSStruct(ref,mst);
 }
@@ -1464,14 +1868,14 @@ MEDFileField1TSStruct::MEDFileField1TSStruct(const MEDFileAnyTypeField1TS *ref,
   _already_checked.push_back(MEDFileField1TSStructItem::BuildItemFrom(ref,mst));
 }
 
-void MEDFileField1TSStruct::checkWithMeshStruct(MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) throw(INTERP_KERNEL::Exception)
+void MEDFileField1TSStruct::checkWithMeshStruct(MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs)
 {
   if(_already_checked.empty())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStruct::checkWithMeshStruct : not correctly initialized !");
   _already_checked.back().checkWithMeshStruct(mst,globs);
 }
 
-bool MEDFileField1TSStruct::isEqualConsideringThePast(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *mst) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStruct::isEqualConsideringThePast(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *mst) const
 {
   MEDFileField1TSStructItem b(MEDFileField1TSStructItem::BuildItemFrom(other,mst));
   for(std::vector<MEDFileField1TSStructItem>::const_iterator it=_already_checked.begin();it!=_already_checked.end();it++)
@@ -1485,7 +1889,7 @@ bool MEDFileField1TSStruct::isEqualConsideringThePast(const MEDFileAnyTypeField1
 /*!
  * Not const because \a other structure will be added to the \c _already_checked attribute in case of success.
  */
-bool MEDFileField1TSStruct::isSupportSameAs(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt) throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStruct::isSupportSameAs(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt)
 {
   if(_already_checked.empty())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStruct::isSupportSameAs : no ref !");
@@ -1515,7 +1919,7 @@ bool MEDFileField1TSStruct::isSupportSameAs(const MEDFileAnyTypeField1TS *other,
 /*!
  * \param [in] other - a field with only one spatial discretization : ON_NODES.
  */
-bool MEDFileField1TSStruct::isCompatibleWithNodesDiscr(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt) throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStruct::isCompatibleWithNodesDiscr(const MEDFileAnyTypeField1TS *other, const MEDFileMeshStruct *meshSt)
 {
   if(_already_checked.empty())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStruct::isCompatibleWithNodesDiscr : no ref !");
@@ -1558,7 +1962,7 @@ std::vector<const BigMemoryObject *> MEDFileField1TSStruct::getDirectChildren()
   return ret;
 }
 
-MEDMeshMultiLev *MEDFileField1TSStruct::buildFromScratchDataSetSupport(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDFileField1TSStruct::buildFromScratchDataSetSupport(const MEDFileMeshStruct *mst, const MEDFileFieldGlobsReal *globs) const
 {
   if(_already_checked.empty())
     throw INTERP_KERNEL::Exception("MEDFileField1TSStruct::buildFromScratchDataSetSupport : No outline structure in this !");
@@ -1573,16 +1977,15 @@ MEDMeshMultiLev *MEDFileField1TSStruct::buildFromScratchDataSetSupport(const MED
   else
     {
       if(!presenceOfPartialNodeDiscr(pos1))
-        {//we have only all nodes, no cell definition info -> level 0;
-          std::vector<int> levs(1,0);
-          return MEDMeshMultiLev::New(mst->getTheMesh(),levs);
+        {//we have only all nodes, no cell definition info -> all existing levels !;
+          return MEDMeshMultiLev::New(mst->getTheMesh(),mst->getTheMesh()->getNonEmptyLevels());
         }
       else
         return MEDMeshMultiLev::NewOnlyOnNode(mst->getTheMesh(),_already_checked[pos1][0].getPfl(globs));
     }
 }
 
-bool MEDFileField1TSStruct::isDataSetSupportFastlyEqualTo(const MEDFileField1TSStruct& other, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStruct::isDataSetSupportFastlyEqualTo(const MEDFileField1TSStruct& other, const MEDFileFieldGlobsReal *globs) const
 {
   int b0,b1;
   bool a0(presenceOfCellDiscr(b0)),a1(presenceOfPartialNodeDiscr(b1));
@@ -1603,7 +2006,7 @@ bool MEDFileField1TSStruct::isDataSetSupportFastlyEqualTo(const MEDFileField1TSS
  * Returns true if presence in \a this of discretization ON_CELLS, ON_GAUSS_PT, ON_GAUSS_NE.
  * If true is returned the pos of the easiest is returned. The easiest is the first element in \a this having the less splitted subparts.
  */
-bool MEDFileField1TSStruct::presenceOfCellDiscr(int& pos) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStruct::presenceOfCellDiscr(int& pos) const
 {
   std::size_t refSz(std::numeric_limits<std::size_t>::max());
   bool ret(false);
@@ -1627,7 +2030,7 @@ bool MEDFileField1TSStruct::presenceOfCellDiscr(int& pos) const throw(INTERP_KER
  * Returns true if presence in \a this of discretization ON_NODES.
  * If true is returned the pos of the first element containing the single subpart.
  */
-bool MEDFileField1TSStruct::presenceOfPartialNodeDiscr(int& pos) const throw(INTERP_KERNEL::Exception)
+bool MEDFileField1TSStruct::presenceOfPartialNodeDiscr(int& pos) const
 {
   int i(0);
   for(std::vector<MEDFileField1TSStructItem>::const_iterator it=_already_checked.begin();it!=_already_checked.end();it++,i++)
@@ -1649,7 +2052,7 @@ bool MEDFileField1TSStruct::presenceOfPartialNodeDiscr(int& pos) const throw(INT
 
 //=
 
-MEDFileFastCellSupportComparator *MEDFileFastCellSupportComparator::New(const MEDFileMeshStruct *m, const MEDFileAnyTypeFieldMultiTS *ref) throw(INTERP_KERNEL::Exception)
+MEDFileFastCellSupportComparator *MEDFileFastCellSupportComparator::New(const MEDFileMeshStruct *m, const MEDFileAnyTypeFieldMultiTS *ref)
 {
   return new MEDFileFastCellSupportComparator(m,ref);
 }
@@ -1690,7 +2093,7 @@ std::vector<const BigMemoryObject *> MEDFileFastCellSupportComparator::getDirect
   return ret;
 }
 
-bool MEDFileFastCellSupportComparator::isEqual(const MEDFileAnyTypeFieldMultiTS *other) throw(INTERP_KERNEL::Exception)
+bool MEDFileFastCellSupportComparator::isEqual(const MEDFileAnyTypeFieldMultiTS *other)
 {
   int nbPts=other->getNumberOfTS();
   if(nbPts!=(int)_f1ts_cmps.size())
@@ -1708,7 +2111,7 @@ bool MEDFileFastCellSupportComparator::isEqual(const MEDFileAnyTypeFieldMultiTS
   return true;
 }
 
-bool MEDFileFastCellSupportComparator::isCompatibleWithNodesDiscr(const MEDFileAnyTypeFieldMultiTS *other) throw(INTERP_KERNEL::Exception)
+bool MEDFileFastCellSupportComparator::isCompatibleWithNodesDiscr(const MEDFileAnyTypeFieldMultiTS *other)
 {
   int nbPts=other->getNumberOfTS();
   if(nbPts!=(int)_f1ts_cmps.size())
@@ -1725,7 +2128,7 @@ bool MEDFileFastCellSupportComparator::isCompatibleWithNodesDiscr(const MEDFileA
   return true;
 }
 
-MEDMeshMultiLev *MEDFileFastCellSupportComparator::buildFromScratchDataSetSupport(int timeStepId, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+MEDMeshMultiLev *MEDFileFastCellSupportComparator::buildFromScratchDataSetSupport(int timeStepId, const MEDFileFieldGlobsReal *globs) const
 {
   if(timeStepId<0 || timeStepId>=(int)_f1ts_cmps.size())
     {
@@ -1741,7 +2144,7 @@ MEDMeshMultiLev *MEDFileFastCellSupportComparator::buildFromScratchDataSetSuppor
   return obj->buildFromScratchDataSetSupport(_mesh_comp,globs);
 }
 
-bool MEDFileFastCellSupportComparator::isDataSetSupportEqualToThePreviousOne(int timeStepId, const MEDFileFieldGlobsReal *globs) const throw(INTERP_KERNEL::Exception)
+bool MEDFileFastCellSupportComparator::isDataSetSupportEqualToThePreviousOne(int timeStepId, const MEDFileFieldGlobsReal *globs) const
 {
   if(timeStepId<=0 || timeStepId>=(int)_f1ts_cmps.size())
     {