X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FDriverMED%2FDriverMED_R_SMESHDS_Mesh.cxx;h=000316955a73241fe05852f971e80d25461f14b6;hp=fe5100d4f2cc2293029c30d8af7ac4c556fc7dbe;hb=ccb5e3c25bf204e839c0094f50f543eacedba5e6;hpb=776e25bc46048a970a8492f432a4e8ce01dada79

diff --git a/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx b/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx
index fe5100d4f..000316955 100644
--- a/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx
+++ b/src/DriverMED/DriverMED_R_SMESHDS_Mesh.cxx
@@ -1,45 +1,49 @@
-//  SMESH DriverMED : driver to read and write 'med' files
+// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
 //
-//  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
-// 
-//  This library is free software; you can redistribute it and/or 
-//  modify it under the terms of the GNU Lesser General Public 
-//  License as published by the Free Software Foundation; either 
-//  version 2.1 of the License. 
-// 
-//  This library is distributed in the hope that it will be useful, 
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of 
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
-//  Lesser General Public License for more details. 
-// 
-//  You should have received a copy of the GNU Lesser General Public 
-//  License along with this library; if not, write to the Free Software 
-//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
-// 
-//  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
 //
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
 //
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 //
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//  SMESH DriverMED : driver to read and write 'med' files
 //  File   : DriverMED_R_SMESHDS_Mesh.cxx
 //  Module : SMESH
 
 #include "DriverMED_R_SMESHDS_Mesh.h"
-#include "DriverMED_R_SMDS_Mesh.h"
-#include "SMESHDS_Mesh.hxx"
-#include "utilities.h"
 
 #include "DriverMED_Family.h"
-
 #include "SMESHDS_Group.hxx"
+#include "SMESHDS_Mesh.hxx"
+#include "SMESH_Comment.hxx"
 
+#include "MED_CoordUtils.hxx"
 #include "MED_Factory.hxx"
 #include "MED_Utilities.hxx"
 
-#include <stdlib.h>
+#include <NCollection_Map.hxx>
+
+#include "utilities.h"
+
+//#include <stdlib.h>
 
 #ifdef _DEBUG_
 static int MYDEBUG = 0;
+//#define _DEXCEPT_
 #else
 static int MYDEBUG = 0;
 #endif
@@ -47,426 +51,956 @@ static int MYDEBUG = 0;
 #define _EDF_NODE_IDS_
 
 using namespace MED;
+using namespace std;
 
-void DriverMED_R_SMESHDS_Mesh::SetMeshName(string theMeshName)
-{
-  myMeshName = theMeshName;
-}
-
-static const SMDS_MeshNode* 
-FindNode(const SMDS_Mesh* theMesh, TInt theId){
-  const SMDS_MeshNode* aNode = theMesh->FindNode(theId);
-  if(aNode) return aNode;
-  EXCEPTION(runtime_error,"SMDS_Mesh::FindNode - cannot find a SMDS_MeshNode for ID = "<<theId);
-}
+typedef std::map<int, DriverMED_FamilyPtr> TID2FamilyMap;
 
+namespace DriverMED
+{
+  bool buildMeshGrille(const MED::PWrapper&  theWrapper,
+                       const MED::PMeshInfo& theMeshInfo,
+                       SMESHDS_Mesh*         theMesh,
+                       const TID2FamilyMap&  myFamilies);
+  /*!
+   * \brief Ensure aFamily has a required ID
+   * \param aFamily - a family to check
+   * \param anID - an ID aFamily should have
+   * \param myFamilies - a map of the family ID to the Family
+   * \retval bool  - true if successful
+   */
+  bool checkFamilyID(DriverMED_FamilyPtr & aFamily,
+                     int                   anID,
+                     const TID2FamilyMap&  myFamilies);
 
-enum ECoordName{eX, eY, eZ, eNone};
-typedef TFloat (*TGetCoord)(MED::PNodeInfo&, TInt);
 
-template<ECoordName TheCoordId>
-TFloat GetCoord(MED::PNodeInfo& thePNodeInfo, TInt theElemId){
-  return thePNodeInfo->GetNodeCoord(theElemId,TheCoordId);
-}
+  const SMDS_MeshNode* FindNode(const SMDS_Mesh* theMesh, TInt theId)
+  {
+    const SMDS_MeshNode* aNode = theMesh->FindNode(theId);
+    if(aNode) return aNode;
+    EXCEPTION(runtime_error,"SMDS_Mesh::FindNode - cannot find a SMDS_MeshNode for ID = "<<theId);
+  }
 
-template<>
-TFloat GetCoord<eNone>(MED::PNodeInfo& thePNodeInfo, TInt theElemId){
-  return 0.0;
 }
 
+//================================================================================
+/*!
+ * \brief Stores a mesh name
+ */
+//================================================================================
 
-static TGetCoord aXYZGetCoord[3] = {
-  &GetCoord<eX>, 
-  &GetCoord<eY>, 
-  &GetCoord<eZ>
-};
-
-
-static TGetCoord aXYGetCoord[3] = {
-  &GetCoord<eX>, 
-  &GetCoord<eY>, 
-  &GetCoord<eNone>
-};
-
-static TGetCoord aYZGetCoord[3] = {
-  &GetCoord<eNone>,
-  &GetCoord<eX>, 
-  &GetCoord<eY>
-};
-
-static TGetCoord aXZGetCoord[3] = {
-  &GetCoord<eX>, 
-  &GetCoord<eNone>,
-  &GetCoord<eY>
-};
-
-
-static TGetCoord aXGetCoord[3] = {
-  &GetCoord<eX>, 
-  &GetCoord<eNone>,
-  &GetCoord<eNone>
-};
-
-static TGetCoord aYGetCoord[3] = {
-  &GetCoord<eNone>,
-  &GetCoord<eX>, 
-  &GetCoord<eNone>
-};
-
-static TGetCoord aZGetCoord[3] = {
-  &GetCoord<eNone>,
-  &GetCoord<eNone>,
-  &GetCoord<eX>
-};
-
-
-class TCoordHelper{
-  MED::PNodeInfo myPNodeInfo;
-  TGetCoord* myGetCoord;
-public:
-  TCoordHelper(const MED::PNodeInfo& thePNodeInfo,
-	       TGetCoord* theGetCoord):
-    myPNodeInfo(thePNodeInfo),
-    myGetCoord(theGetCoord)
-  {}
-  virtual ~TCoordHelper(){}
-  TFloat GetCoord(TInt theElemId, TInt theCoodId){
-    return (*myGetCoord[theCoodId])(myPNodeInfo,theElemId);
-  }
-};
-typedef boost::shared_ptr<TCoordHelper> TCoordHelperPtr;
+void DriverMED_R_SMESHDS_Mesh::SetMeshName(string theMeshName)
+{
+  myMeshName = theMeshName;
+}
 
+//================================================================================
+/*!
+ * \brief Reads a med file
+ */
+//================================================================================
 
 Driver_Mesh::Status DriverMED_R_SMESHDS_Mesh::Perform()
 {
+  using namespace DriverMED;
+
   Status aResult = DRS_FAIL;
-  try{
+  bool isDescConn = false; // Mantis issue 0020483
+#ifndef _DEXCEPT_
+  try {
+#endif
     myFamilies.clear();
     if(MYDEBUG) MESSAGE("Perform - myFile : "<<myFile);
-    PWrapper aMed = CrWrapper(myFile);
+    PWrapper aMed = CrWrapper(myFile,true);
 
     aResult = DRS_EMPTY;
-    if(TInt aNbMeshes = aMed->GetNbMeshes()){
-      for(int iMesh = 0; iMesh < aNbMeshes; iMesh++){
-	// Reading the MED mesh
-	//---------------------
-	PMeshInfo aMeshInfo = aMed->GetPMeshInfo(iMesh+1);
-        string aMeshName;
-        if (myMeshId != -1) {
-          ostringstream aMeshNameStr;
-          aMeshNameStr<<myMeshId;
-          aMeshName = aMeshNameStr.str();
-        } else {
-          aMeshName = myMeshName;
-        }
-	if(MYDEBUG) MESSAGE("Perform - aMeshName : "<<aMeshName<<"; "<<aMeshInfo->GetName());
-	if(aMeshName != aMeshInfo->GetName()) continue;
-        aResult = DRS_OK;
-	//TInt aMeshDim = aMeshInfo->GetDim();
-	
-        // Reading MED families to the temporary structure
-	//------------------------------------------------
-	TErr anErr;
-	TInt aNbFams = aMed->GetNbFamilies(aMeshInfo);
-        if(MYDEBUG) MESSAGE("Read " << aNbFams << " families");
-        for (TInt iFam = 0; iFam < aNbFams; iFam++) {
-	  PFamilyInfo aFamilyInfo = aMed->GetPFamilyInfo(aMeshInfo,iFam+1,&anErr);
-	  if(anErr >= 0){
-	    TInt aFamId = aFamilyInfo->GetId();
-	    if(MYDEBUG) MESSAGE("Family " << aFamId << " :");
-	    
-            DriverMED_FamilyPtr aFamily (new DriverMED_Family);
-	    
-            TInt aNbGrp = aFamilyInfo->GetNbGroup();
-            if(MYDEBUG) MESSAGE("belong to " << aNbGrp << " groups");
-            for (TInt iGr = 0; iGr < aNbGrp; iGr++) {
-              string aGroupName = aFamilyInfo->GetGroupName(iGr);
-              if(MYDEBUG) MESSAGE(aGroupName);
-              aFamily->AddGroupName(aGroupName);
+    TInt aNbMeshes = aMed->GetNbMeshes();
+    for (int iMesh = 0; iMesh < aNbMeshes; iMesh++)
+    {
+      // Reading the MED mesh
+      //---------------------
+      PMeshInfo aMeshInfo = aMed->GetPMeshInfo(iMesh+1);
+
+      string aMeshName;
+      if (myMeshId != -1) aMeshName = SMESH_Comment( myMeshId );
+      else                aMeshName = myMeshName;
+
+      if(MYDEBUG) MESSAGE("Perform - aMeshName : "<<aMeshName<<"; "<<aMeshInfo->GetName());
+      if ( aMeshName != aMeshInfo->GetName() ) continue;
+      aResult = DRS_OK;
+
+      // Reading MED families to the temporary structure
+      //------------------------------------------------
+      TErr anErr;
+      TInt aNbFams = aMed->GetNbFamilies(aMeshInfo);
+      if(MYDEBUG) MESSAGE("Read " << aNbFams << " families");
+      for (TInt iFam = 0; iFam < aNbFams; iFam++)
+      {
+        PFamilyInfo aFamilyInfo = aMed->GetPFamilyInfo(aMeshInfo,iFam+1,&anErr);
+        if(anErr >= 0){
+          TInt aFamId = aFamilyInfo->GetId();
+          if(MYDEBUG) MESSAGE("Family " << aFamId << " :");
+
+          DriverMED_FamilyPtr aFamily (new DriverMED_Family);
+
+          TInt aNbGrp = aFamilyInfo->GetNbGroup();
+          if(MYDEBUG) MESSAGE("belong to " << aNbGrp << " groups");
+          bool isAttrOk = false;
+          if(aFamilyInfo->GetNbAttr() == aNbGrp)
+            isAttrOk = true;
+          for (TInt iGr = 0; iGr < aNbGrp; iGr++)
+          {
+            string aGroupName = aFamilyInfo->GetGroupName(iGr);
+            if ( isAttrOk ) {
+              TInt anAttrVal = aFamilyInfo->GetAttrVal(iGr);
+              aFamily->SetGroupAttributVal(anAttrVal);
             }
-            myFamilies[aFamId] = aFamily;
-	  }
+            if(MYDEBUG) MESSAGE(aGroupName);
+            if ( strncmp( aGroupName.c_str(), NIG_GROUP_PREFIX, strlen(NIG_GROUP_PREFIX) ) != 0 )
+              aFamily->AddGroupName(aGroupName);
+          }
+          aFamily->SetId( aFamId );
+          myFamilies[aFamId] = aFamily;
         }
+      }
 
-        // Reading MED nodes to the corresponding SMDS structure
-	//------------------------------------------------------
-	PNodeInfo aNodeInfo = aMed->GetPNodeInfo(aMeshInfo);
-
-	TCoordHelperPtr aCoordHelperPtr;
-	{
-	  TInt aMeshDimension = aMeshInfo->GetDim();
-	  bool anIsDimPresent[3] = {false, false, false};
-          for(TInt iDim = 0; iDim < aMeshDimension; iDim++){
-	    string aDimName = aNodeInfo->GetCoordName(iDim);
-	    if(aDimName == "x" || aDimName == "X")
-	      anIsDimPresent[eX] = true;
-	    else if(aDimName == "y" || aDimName == "Y")
-	      anIsDimPresent[eY] = true;
-	    else if(aDimName == "z" || aDimName == "Z")
-	      anIsDimPresent[eZ] = true;
-	  }
-	  switch(aMeshDimension){
-	  case 3:
-	    aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aXYZGetCoord));
-	    break;
-	  case 2:
-	    if(anIsDimPresent[eY] && anIsDimPresent[eZ])
-	      aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aYZGetCoord));
-	    else if(anIsDimPresent[eX] && anIsDimPresent[eZ])
-	      aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aXZGetCoord));
-	    else
-	      aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aXYGetCoord));
-	    break;
-	  case 1:
-	    if(anIsDimPresent[eY])
-	      aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aYGetCoord));
-	    else if(anIsDimPresent[eZ])
-	      aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aZGetCoord));
-	    else
-	      aCoordHelperPtr.reset(new TCoordHelper(aNodeInfo,aXGetCoord));
-	    break;
-	  }
-	}
-
-	EBooleen anIsNodeNum = aNodeInfo->IsElemNum();
-	TInt aNbElems = aNodeInfo->GetNbElem();
-	if(MYDEBUG) MESSAGE("Perform - aNodeInfo->GetNbElem() = "<<aNbElems<<"; anIsNodeNum = "<<anIsNodeNum);
-        for(TInt iElem = 0; iElem < aNbElems; iElem++){
-          double aCoords[3] = {0.0, 0.0, 0.0};
-          for(TInt iDim = 0; iDim < 3; iDim++)
-            aCoords[iDim] = aCoordHelperPtr->GetCoord(iElem,iDim);
-          const SMDS_MeshNode* aNode;
-          if(anIsNodeNum) {
-	    aNode = myMesh->AddNodeWithID
-              (aCoords[0],aCoords[1],aCoords[2],aNodeInfo->GetElemNum(iElem));
-          } else {
-	    aNode = myMesh->AddNode
-              (aCoords[0],aCoords[1],aCoords[2]);
-          }
-          //cout<<aNode->GetID()<<": "<<aNode->X()<<", "<<aNode->Y()<<", "<<aNode->Z()<<endl;
+      if (aMeshInfo->GetType() == MED::eSTRUCTURE)
+      {
+        /*bool aRes = */DriverMED::buildMeshGrille(aMed,aMeshInfo,myMesh,myFamilies);
+        continue;
+      }
+
+      // Reading MED nodes to the corresponding SMDS structure
+      //------------------------------------------------------
+      PNodeInfo aNodeInfo = aMed->GetPNodeInfo(aMeshInfo);
+      if (!aNodeInfo) {
+        aResult = addMessage("No nodes", /*isFatal=*/true );
+        continue;
+      }
+      aMeshInfo->myDim=aMeshInfo->mySpaceDim;// ignore meshdim in MEDFile because it can be false
+      PCoordHelper aCoordHelper = GetCoordHelper(aNodeInfo);
 
-          // Save reference to this node from its family
-          TInt aFamNum = aNodeInfo->GetFamNum(iElem);
-          if (myFamilies.find(aFamNum) != myFamilies.end())
+      EBooleen anIsNodeNum = aNodeInfo->IsElemNum();
+      TInt aNbElems = aNodeInfo->GetNbElem();
+      if(MYDEBUG) MESSAGE("Perform - aNodeInfo->GetNbElem() = "<<aNbElems<<"; anIsNodeNum = "<<anIsNodeNum);
+      DriverMED_FamilyPtr aFamily;
+      for ( TInt iElem = 0; iElem < aNbElems; iElem++ )
+      {
+        TCCoordSlice aCoordSlice = aNodeInfo->GetCoordSlice(iElem);
+        double aCoords[3] = {0.0, 0.0, 0.0};
+        for(TInt iDim = 0; iDim < 3; iDim++)
+          aCoords[iDim] = aCoordHelper->GetCoord(aCoordSlice,iDim);
+        const SMDS_MeshNode* aNode;
+        if ( anIsNodeNum ) {
+          aNode = myMesh->AddNodeWithID
+            (aCoords[0],aCoords[1],aCoords[2],aNodeInfo->GetElemNum(iElem));
+        }
+        else {
+          aNode = myMesh->AddNodeWithID
+            (aCoords[0],aCoords[1],aCoords[2], iElem+1);
+        }
+
+        // Save reference to this node from its family
+        TInt aFamNum = aNodeInfo->GetFamNum(iElem);
+        if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies ))
+        {
+          aFamily->AddElement(aNode);
+          aFamily->SetType(SMDSAbs_Node);
+        }
+      }
+
+      // Are there any MED cells in descending connectivity
+      // Mantis issue 0020483
+      //---------------------------------------------------
+      NCollection_Map<EEntiteMaillage> aDescendingEntitiesMap;
+      if (!isDescConn) {
+        MED::TEntityInfo aEntityInfoDesc = aMed->GetEntityInfo(aMeshInfo, eDESC);
+        MED::TEntityInfo::iterator anEntityIterDesc = aEntityInfoDesc.begin();
+        //for (; anEntityIterDesc != aEntityInfoDesc.end() && !isDescConn; anEntityIterDesc++) {
+        for (; anEntityIterDesc != aEntityInfoDesc.end(); anEntityIterDesc++) {
+          const EEntiteMaillage& anEntity = anEntityIterDesc->first;
+          aDescendingEntitiesMap.Add(anEntity);
+          //if (anEntity != eNOEUD) isDescConn = true;
+        }
+      }
+
+      // Reading pre information about all MED cells
+      //--------------------------------------------
+      typedef MED::TVector<int> TNodeIds;
+      bool takeNumbers = true;  // initially we trust the numbers from file
+      MED::TEntityInfo aEntityInfo = aMed->GetEntityInfo(aMeshInfo, eNOD);
+      MED::TEntityInfo::iterator anEntityIter = aEntityInfo.begin();
+
+      for (; anEntityIter != aEntityInfo.end(); anEntityIter++)
+      {
+        const EEntiteMaillage& anEntity = anEntityIter->first;
+        aDescendingEntitiesMap.Remove(anEntity); // Mantis issue 0020483
+        if (anEntity == eNOEUD) continue;
+
+        // Reading MED cells to the corresponding SMDS structure
+        //------------------------------------------------------
+        const MED::TGeom2Size& aGeom2Size = anEntityIter->second;
+        MED::TGeom2Size::const_iterator aGeom2SizeIter = aGeom2Size.begin();
+        for ( ; aGeom2SizeIter != aGeom2Size.end(); aGeom2SizeIter++)
+        {
+          const EGeometrieElement& aGeom = aGeom2SizeIter->first;
+
+          if ( anEntity == eSTRUCT_ELEMENT ) // MED_BALL (issue 0021459)
+          {
+            PBallInfo aBallInfo = aMed->GetPBallInfo(aMeshInfo);
+            TInt      aNbBalls  = aBallInfo->GetNbElem();
+
+            EBooleen anIsElemNum = takeNumbers ? aBallInfo->IsElemNum() : eFAUX;
+            if ( anIsElemNum && aBallInfo->myElemNum->empty() )
+              anIsElemNum = eFAUX;
+
+            // get supporting nodes
+            TNodeIds aNodeIds;
+#ifdef _EDF_NODE_IDS_
+            if(anIsNodeNum) {
+              aNodeIds.resize( aNbBalls );
+              for(TInt iBall = 0; iBall < aNbBalls && anIsNodeNum; iBall++)
+              {
+                aNodeIds[iBall] = aNodeInfo->GetElemNum( (*aBallInfo->myConn)[ iBall ]-1 );
+                anIsNodeNum = myMesh->FindNode( aNodeIds[iBall] ) ? eVRAI : eFAUX;
+              }
+            }
+#endif
+            if ( !anIsNodeNum )
+              aNodeIds.swap( *(aBallInfo->myConn ));
+
+            // allocate array of diameters
+            vtkIdType maxID = myMesh->MaxElementID() + aNbBalls;
+            if ( anIsElemNum && !aBallInfo->myElemNum->empty() )
+              maxID = *std::max_element( aBallInfo->myElemNum->begin(),
+                                         aBallInfo->myElemNum->end() );
+            myMesh->getGrid()->AllocateDiameters( maxID ); // performance optimization
+
+            // create balls
+            SMDS_MeshElement* anElement;
+            DriverMED_FamilyPtr aFamily;
+            for ( TInt iBall = 0; iBall < aNbBalls; iBall++)
+            {
+              anElement = 0;
+              if ( anIsElemNum ) {
+                if (!(anElement = myMesh->AddBallWithID( aNodeIds[iBall],
+                                                         aBallInfo->myDiameters[iBall],
+                                                         aBallInfo->GetElemNum(iBall))))
+                  anIsElemNum = eFAUX;
+              }
+              if ( !anElement )
+                myMesh->AddBall( myMesh->FindNode( aNodeIds[iBall]),
+                                 aBallInfo->myDiameters[iBall] );
+
+              // Save reference to this element from its family
+              TInt aFamNum = aBallInfo->GetFamNum(iBall);
+              if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies ))
+              {
+                aFamily->AddElement(anElement);
+                aFamily->SetType( SMDSAbs_Ball );
+              }
+            }
+
+            if ( !anIsElemNum &&
+                 ( takeNumbers && aBallInfo->IsElemNum() && !aBallInfo->myElemNum->empty() ))
+              if ( aResult < DRS_WARN_RENUMBER )
+                aResult = DRS_WARN_RENUMBER;
+
+            continue;
+          } // MED_BALL
+
+          switch(aGeom) {
+          // case ePOINT1: ## PAL16410
+          //     break;
+          case ePOLYGONE:
+          case ePOLYGON2:
           {
-            myFamilies[aFamNum]->AddElement(aNode);
-            myFamilies[aFamNum]->SetType(SMDSAbs_Node);
+            PPolygoneInfo aPolygoneInfo = aMed->GetPPolygoneInfo(aMeshInfo,anEntity,aGeom);
+            EBooleen anIsElemNum = takeNumbers ? aPolygoneInfo->IsElemNum() : eFAUX;
+
+            typedef SMDS_MeshFace* (SMESHDS_Mesh::* FAddPolyWithID)
+              (const std::vector<int> & nodes_ids, const int ID);
+            typedef SMDS_MeshFace* (SMESHDS_Mesh::* FAddPolygon)
+              (const std::vector<const SMDS_MeshNode*> & nodes);
+
+            FAddPolyWithID addPolyWithID = & SMESHDS_Mesh::AddPolygonalFaceWithID;
+            FAddPolygon       addPolygon = & SMESHDS_Mesh::AddPolygonalFace;
+            if ( aGeom == ePOLYGON2 ) {
+              addPolyWithID = & SMESHDS_Mesh::AddQuadPolygonalFaceWithID;
+              addPolygon    = & SMESHDS_Mesh::AddQuadPolygonalFace;
+            }
+            TNodeIds aNodeIds;
+            vector<const SMDS_MeshNode*> aNodes;
+            const TInt aNbElem = aPolygoneInfo->GetNbElem();
+            for ( TInt iElem = 0; iElem < aNbElem; iElem++ )
+            {
+              MED::TCConnSlice aConnSlice = aPolygoneInfo->GetConnSlice(iElem);
+              TInt aNbConn = aPolygoneInfo->GetNbConn(iElem);
+              aNodeIds.resize( aNbConn );
+#ifdef _EDF_NODE_IDS_
+              if(anIsNodeNum)
+                for(TInt iConn = 0; iConn < aNbConn; iConn++)
+                  aNodeIds[iConn] = aNodeInfo->GetElemNum(aConnSlice[iConn] - 1);
+              else
+                for(TInt iConn = 0; iConn < aNbConn; iConn++)
+                  aNodeIds[iConn] = aConnSlice[iConn];
+#else
+              for(TInt iConn = 0; iConn < aNbConn; iConn++)
+                aNodeIds[iConn] = aConnSlice[iConn];
+#endif
+              bool isRenum = false;
+              SMDS_MeshElement* anElement = NULL;
+              TInt aFamNum = aPolygoneInfo->GetFamNum(iElem);
+#ifndef _DEXCEPT_
+              try {
+#endif
+                if ( anIsElemNum ) {
+                  TInt anElemId = aPolygoneInfo->GetElemNum( iElem );
+                  anElement = (myMesh->*addPolyWithID)( aNodeIds, anElemId );
+                }
+                if ( !anElement ) {
+                  aNodes.resize( aNbConn );
+                  for ( TInt iConn = 0; iConn < aNbConn; iConn++ )
+                    aNodes[iConn] = FindNode( myMesh, aNodeIds[iConn] );
+                  anElement = (myMesh->*addPolygon)( aNodes );
+                  isRenum = anIsElemNum;
+                }
+#ifndef _DEXCEPT_
+              } catch(const std::exception& exc) {
+                aResult = addMessage( exc.what(), /*isFatal=*/true );
+              } catch (...) {
+                aResult = addMessage( "Unknown exception", /*isFatal=*/true );
+              }
+#endif
+              if ( !anElement ) {
+                aResult = DRS_WARN_SKIP_ELEM;
+              }
+              else {
+                if ( isRenum ) {
+                  anIsElemNum = eFAUX;
+                  takeNumbers = false;
+                  if(aResult < DRS_WARN_RENUMBER)
+                    aResult = DRS_WARN_RENUMBER;
+                }
+                if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies ))
+                {
+                  // Save reference to this element from its family
+                  aFamily->AddElement(anElement);
+                  aFamily->SetType(anElement->GetType());
+                }
+              }
+            }
+            break;
           }
-        }
+          case ePOLYEDRE: {
+            PPolyedreInfo aPolyedreInfo = aMed->GetPPolyedreInfo(aMeshInfo,anEntity,aGeom);
+            EBooleen anIsElemNum = takeNumbers ? aPolyedreInfo->IsElemNum() : eFAUX;
 
-	// Reading pre information about all MED cells
-	//--------------------------------------------
-        bool takeNumbers = true;  // initially we trust the numbers from file
-	MED::TEntityInfo aEntityInfo = aMed->GetEntityInfo(aMeshInfo);
-	MED::TEntityInfo::iterator anEntityIter = aEntityInfo.begin();
-	for(; anEntityIter != aEntityInfo.end(); anEntityIter++){
-	  const EEntiteMaillage& anEntity = anEntityIter->first;
-	  if(anEntity == eNOEUD) continue;
-	  // Reading MED cells to the corresponding SMDS structure
-	  //------------------------------------------------------
-	  const MED::TGeom& aTGeom = anEntityIter->second;
-	  MED::TGeom::const_iterator anTGeomIter = aTGeom.begin();
-	  for(; anTGeomIter != aTGeom.end(); anTGeomIter++){
-	    const EGeometrieElement& aGeom = anTGeomIter->first;
-	    if(aGeom == ePOINT1) continue;
-	    PCellInfo aCellInfo = aMed->GetPCellInfo(aMeshInfo,anEntity,aGeom);
-	    EBooleen anIsElemNum = takeNumbers ? aCellInfo->IsElemNum() : eFAUX;
-	    TInt aNbElems = aCellInfo->GetNbElem();
-	    if(MYDEBUG) MESSAGE("Perform - anEntity = "<<anEntity<<"; anIsElemNum = "<<anIsElemNum);
-	    if(MYDEBUG) MESSAGE("Perform - aGeom = "<<aGeom<<"; aNbElems = "<<aNbElems);
-
-	    for(int iElem = 0; iElem < aNbElems; iElem++){
-	      TInt aNbNodes = -1;
-	      switch(aGeom){
-	      case eSEG2:
-	      case eSEG3:
-		aNbNodes = 2;
-		break;
-	      case eTRIA3:
-	      case eTRIA6:
-		aNbNodes = 3;
-		break;
-		break;
-	      case eQUAD4:
-	      case eQUAD8:
-		aNbNodes = 4;
-                break;
-              case eTETRA4:
-	      case eTETRA10:
-		aNbNodes = 4;
-		break;
-	      case ePYRA5:
-	      case ePYRA13:
-		aNbNodes = 5;
-		break;
-	      case ePENTA6:
-	      case ePENTA15:
-		aNbNodes = 6;
-		break;
-	      case eHEXA8:
-	      case eHEXA20:
-		aNbNodes = 8;
-		break;
-	      }
-	      vector<TInt> aNodeIds(aNbNodes);
+            TInt aNbElem = aPolyedreInfo->GetNbElem();
+            for(TInt iElem = 0; iElem < aNbElem; iElem++){
+              MED::TCConnSliceArr aConnSliceArr = aPolyedreInfo->GetConnSliceArr(iElem);
+              TInt aNbFaces = aConnSliceArr.size();
+              typedef MED::TVector<int> TQuantities;
+              TQuantities aQuantities(aNbFaces);
+              TInt aNbNodes = aPolyedreInfo->GetNbNodes(iElem);
+              TNodeIds aNodeIds(aNbNodes);
+              for(TInt iFace = 0, iNode = 0; iFace < aNbFaces; iFace++){
+                MED::TCConnSlice aConnSlice = aConnSliceArr[iFace];
+                TInt aNbConn = aConnSlice.size();
+                aQuantities[iFace] = aNbConn;
 #ifdef _EDF_NODE_IDS_
-	      if(anIsNodeNum) {
-		for(int i = 0; i < aNbNodes; i++){
-		  aNodeIds[i] = aNodeInfo->GetElemNum(aCellInfo->GetConn(iElem,i)-1);
-		}
-	      }else{
-		for(int i = 0; i < aNbNodes; i++){
-		  aNodeIds[i] = aCellInfo->GetConn(iElem,i);
-		}
-	      }
+                if(anIsNodeNum)
+                  for(TInt iConn = 0; iConn < aNbConn; iConn++)
+                  {
+                    aNodeIds[iNode] = aNodeInfo->GetElemNum(aConnSlice[iConn] - 1);
+                    iNode++;
+                  }
+                else
+                  for(TInt iConn = 0; iConn < aNbConn; iConn++)
+                  {
+                    aNodeIds[iNode++] = aConnSlice[iConn];
+                  }
 #else
-	      for(int i = 0; i < aNbNodes; i++){
-		aNodeIds[i] = aCellInfo->GetConn(iElem,i);
-	      }
+                for(TInt iConn = 0; iConn < aNbConn; iConn++)
+                {
+                  aNodeIds[iNode++] = aConnSlice[iConn];
+                }
+#endif          
+              }
+
+              bool isRenum = false;
+              SMDS_MeshElement* anElement = NULL;
+              TInt aFamNum = aPolyedreInfo->GetFamNum(iElem);
+                
+#ifndef _DEXCEPT_
+              try{
 #endif
+                if(anIsElemNum){
+                  TInt anElemId = aPolyedreInfo->GetElemNum(iElem);
+                  anElement = myMesh->AddPolyhedralVolumeWithID(aNodeIds,aQuantities,anElemId);
+                }
+                if(!anElement){
+                  vector<const SMDS_MeshNode*> aNodes(aNbNodes);
+                  for(TInt iConn = 0; iConn < aNbNodes; iConn++)
+                    aNodes[iConn] = FindNode(myMesh,aNodeIds[iConn]);
+                  anElement = myMesh->AddPolyhedralVolume(aNodes,aQuantities);
+                  isRenum = anIsElemNum;
+                }
+#ifndef _DEXCEPT_
+              }catch(const std::exception& exc){
+                aResult = DRS_FAIL;
+              }catch(...){
+                aResult = DRS_FAIL;
+              }
+#endif          
+              if(!anElement){
+                aResult = DRS_WARN_SKIP_ELEM;
+              }else{
+                if(isRenum){
+                  anIsElemNum = eFAUX;
+                  takeNumbers = false;
+                  if (aResult < DRS_WARN_RENUMBER)
+                    aResult = DRS_WARN_RENUMBER;
+                }
+                if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies )) {
+                  // Save reference to this element from its family
+                  aFamily->AddElement(anElement);
+                  aFamily->SetType(anElement->GetType());
+                }
+              }
+            }
+            break;
+          }
+          default: {
+            PCellInfo aCellInfo = aMed->GetPCellInfo(aMeshInfo,anEntity,aGeom);
+            EBooleen anIsElemNum = takeNumbers ? aCellInfo->IsElemNum() : eFAUX;
+            TInt aNbElems = aCellInfo->GetNbElem();
+            if(MYDEBUG) MESSAGE("Perform - anEntity = "<<anEntity<<"; anIsElemNum = "<<anIsElemNum);
+            if(MYDEBUG) MESSAGE("Perform - aGeom = "<<aGeom<<"; aNbElems = "<<aNbElems);
 
-	      bool isRenum = false;
-	      SMDS_MeshElement* anElement = NULL;
-	      TInt aFamNum = aCellInfo->GetFamNum(iElem);
-	      try{
-		switch(aGeom){
-		case eSEG2:
-		case eSEG3:
-		  if(anIsElemNum)
-		    anElement = myMesh->AddEdgeWithID(aNodeIds[0],
-						      aNodeIds[1],
-						      aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddEdge(FindNode(myMesh,aNodeIds[0]),
-						FindNode(myMesh,aNodeIds[1]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		case eTRIA3:
-		case eTRIA6:
-		  aNbNodes = 3;
-		  if(anIsElemNum)
-		    anElement = myMesh->AddFaceWithID(aNodeIds[0],
-						      aNodeIds[1],
-						      aNodeIds[2],
-						      aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
-						FindNode(myMesh,aNodeIds[1]),
-						FindNode(myMesh,aNodeIds[2]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		case eQUAD4:
-		case eQUAD8:
-		  aNbNodes = 4;
-		  // There is some differnce between SMDS and MED
-		  if(anIsElemNum)
-		    anElement = myMesh->AddFaceWithID(aNodeIds[0],
-						      aNodeIds[1],
-						      aNodeIds[2],
-						      aNodeIds[3],
-						      aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
-						FindNode(myMesh,aNodeIds[1]),
-						FindNode(myMesh,aNodeIds[2]),
-						FindNode(myMesh,aNodeIds[3]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		case eTETRA4:
-		case eTETRA10:
-		  aNbNodes = 4;
-		  if(anIsElemNum)
-		    anElement = myMesh->AddVolumeWithID(aNodeIds[0],
-							aNodeIds[1],
-							aNodeIds[2],
-							aNodeIds[3],
-							aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
-						  FindNode(myMesh,aNodeIds[1]),
-						  FindNode(myMesh,aNodeIds[2]),
-						  FindNode(myMesh,aNodeIds[3]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		case ePYRA5:
-		case ePYRA13:
-		  aNbNodes = 5;
-		  // There is some differnce between SMDS and MED
-		  if(anIsElemNum)
-		    anElement = myMesh->AddVolumeWithID(aNodeIds[0],
-							aNodeIds[1],
-							aNodeIds[2],
-							aNodeIds[3],
-							aNodeIds[4],
-							aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
-						  FindNode(myMesh,aNodeIds[1]),
-						  FindNode(myMesh,aNodeIds[2]),
-						  FindNode(myMesh,aNodeIds[3]),
-						  FindNode(myMesh,aNodeIds[4]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		case ePENTA6:
-		case ePENTA15:
-		  aNbNodes = 6;
-		  if(anIsElemNum)
-		    anElement = myMesh->AddVolumeWithID(aNodeIds[0],
-							aNodeIds[1],
-							aNodeIds[2],
-							aNodeIds[3],
-							aNodeIds[4],
-							aNodeIds[5],
-							aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
-						  FindNode(myMesh,aNodeIds[1]),
-						  FindNode(myMesh,aNodeIds[2]),
-						  FindNode(myMesh,aNodeIds[3]),
-						  FindNode(myMesh,aNodeIds[4]),
-						  FindNode(myMesh,aNodeIds[5]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		case eHEXA8:
-		case eHEXA20:
-		  aNbNodes = 8;
-		  if(anIsElemNum)
-		    anElement = myMesh->AddVolumeWithID(aNodeIds[0],
-							aNodeIds[1],
-							aNodeIds[2],
-							aNodeIds[3],
-							aNodeIds[4],
-							aNodeIds[5],
-							aNodeIds[6],
-							aNodeIds[7],
-							aCellInfo->GetElemNum(iElem));
-		  if (!anElement) {
-		    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
-						  FindNode(myMesh,aNodeIds[1]),
-						  FindNode(myMesh,aNodeIds[2]),
-						  FindNode(myMesh,aNodeIds[3]),
-						  FindNode(myMesh,aNodeIds[4]),
-						  FindNode(myMesh,aNodeIds[5]),
-						  FindNode(myMesh,aNodeIds[6]),
-						  FindNode(myMesh,aNodeIds[7]));
-		    isRenum = anIsElemNum;
-		  }
-		  break;
-		}
-	      }catch(const std::exception& exc){
-		//INFOS("Follow exception was cought:\n\t"<<exc.what());
-		aResult = DRS_FAIL;
-	      }catch(...){
-		//INFOS("Unknown exception was cought !!!");
-		aResult = DRS_FAIL;
-	      }
-		
+            TInt aNbNodes = -1;
+            switch(aGeom){
+            case eSEG2:    aNbNodes = 2;  break;
+            case eSEG3:    aNbNodes = 3;  break;
+            case eTRIA3:   aNbNodes = 3;  break;
+            case eTRIA6:   aNbNodes = 6;  break;
+            case eTRIA7:   aNbNodes = 7;  break;
+            case eQUAD4:   aNbNodes = 4;  break;
+            case eQUAD8:   aNbNodes = 8;  break;
+            case eQUAD9:   aNbNodes = 9;  break;
+            case eTETRA4:  aNbNodes = 4;  break;
+            case eTETRA10: aNbNodes = 10; break;
+            case ePYRA5:   aNbNodes = 5;  break;
+            case ePYRA13:  aNbNodes = 13; break;
+            case ePENTA6:  aNbNodes = 6;  break;
+            case ePENTA15: aNbNodes = 15; break;
+            case ePENTA18: aNbNodes = 18; break;
+            case eHEXA8:   aNbNodes = 8;  break;
+            case eHEXA20:  aNbNodes = 20; break;
+            case eHEXA27:  aNbNodes = 27; break;
+            case eOCTA12:  aNbNodes = 12; break;
+            case ePOINT1:  aNbNodes = 1;  break;
+            default:;
+            }
+            vector<TInt> aNodeIds(aNbNodes);
+            for ( int iElem = 0; iElem < aNbElems; iElem++ )
+            {
+              bool anIsValidConnect = false;
+              TCConnSlice aConnSlice = aCellInfo->GetConnSlice(iElem);
+#ifndef _DEXCEPT_
+              try{
+#endif
+#ifdef _EDF_NODE_IDS_
+                if(anIsNodeNum)
+                  for(int iNode = 0; iNode < aNbNodes; iNode++)
+                    aNodeIds[iNode] = aNodeInfo->GetElemNum(aConnSlice[iNode] - 1);
+                else
+                  for(int iNode = 0; iNode < aNbNodes; iNode++)
+                    aNodeIds[iNode] = aConnSlice[iNode];
+#else
+                for(int iNode = 0; iNode < aNbNodes; iNode++)
+                  aNodeIds[iNode] = aConnSlice[iNode];
+#endif
+                anIsValidConnect = true;
+#ifndef _DEXCEPT_
+              }catch(const std::exception& exc){
+                INFOS("Following exception was caught:\n\t"<<exc.what());
+                aResult = addMessage( exc.what(), /*isFatal=*/true );
+              }catch(...){
+                INFOS("Unknown exception was caught !!!");
+                aResult = addMessage( "Unknown exception", /*isFatal=*/true );
+              }
+#endif          
+              if(!anIsValidConnect)
+                continue;
+
+              bool isRenum = false;
+              const SMDS_MeshElement* anElement = NULL;
+              TInt aFamNum = aCellInfo->GetFamNum(iElem);
+#ifndef _DEXCEPT_
+              try{
+#endif
+                //MESSAGE("Try to create element # " << iElem << " with id = "
+                //        << aCellInfo->GetElemNum(iElem));
+                switch(aGeom) {
+                case ePOINT1:
+                  //anElement = FindNode(myMesh,aNodeIds[0]);
+                  if(anIsElemNum)
+                    anElement = myMesh->Add0DElementWithID
+                      (aNodeIds[0], aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->Add0DElement(FindNode(myMesh,aNodeIds[0]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eSEG2:
+                  if(anIsElemNum)
+                    anElement = myMesh->AddEdgeWithID(aNodeIds[0],
+                                                      aNodeIds[1],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddEdge(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eSEG3:
+                  if(anIsElemNum)
+                    anElement = myMesh->AddEdgeWithID(aNodeIds[0],
+                                                      aNodeIds[1],
+                                                      aNodeIds[2],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddEdge(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eTRIA3:
+                  aNbNodes = 3;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddFaceWithID(aNodeIds[0],
+                                                      aNodeIds[1],
+                                                      aNodeIds[2],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eTRIA6:
+                  aNbNodes = 6;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddFaceWithID(aNodeIds[0], aNodeIds[1],
+                                                      aNodeIds[2], aNodeIds[3],
+                                                      aNodeIds[4], aNodeIds[5],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]),
+                                                FindNode(myMesh,aNodeIds[3]),
+                                                FindNode(myMesh,aNodeIds[4]),
+                                                FindNode(myMesh,aNodeIds[5]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eTRIA7:
+                  aNbNodes = 7;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddFaceWithID(aNodeIds[0], aNodeIds[1],
+                                                      aNodeIds[2], aNodeIds[3],
+                                                      aNodeIds[4], aNodeIds[5], aNodeIds[6],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]),
+                                                FindNode(myMesh,aNodeIds[3]),
+                                                FindNode(myMesh,aNodeIds[4]),
+                                                FindNode(myMesh,aNodeIds[5]),
+                                                FindNode(myMesh,aNodeIds[6]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eQUAD4:
+                  aNbNodes = 4;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddFaceWithID(aNodeIds[0], aNodeIds[1],
+                                                      aNodeIds[2], aNodeIds[3],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]),
+                                                FindNode(myMesh,aNodeIds[3]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eQUAD8:
+                  aNbNodes = 8;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddFaceWithID(aNodeIds[0], aNodeIds[1],
+                                                      aNodeIds[2], aNodeIds[3],
+                                                      aNodeIds[4], aNodeIds[5],
+                                                      aNodeIds[6], aNodeIds[7],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]),
+                                                FindNode(myMesh,aNodeIds[3]),
+                                                FindNode(myMesh,aNodeIds[4]),
+                                                FindNode(myMesh,aNodeIds[5]),
+                                                FindNode(myMesh,aNodeIds[6]),
+                                                FindNode(myMesh,aNodeIds[7]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eQUAD9:
+                  aNbNodes = 9;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddFaceWithID(aNodeIds[0], aNodeIds[1],
+                                                      aNodeIds[2], aNodeIds[3],
+                                                      aNodeIds[4], aNodeIds[5],
+                                                      aNodeIds[6], aNodeIds[7], aNodeIds[8],
+                                                      aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddFace(FindNode(myMesh,aNodeIds[0]),
+                                                FindNode(myMesh,aNodeIds[1]),
+                                                FindNode(myMesh,aNodeIds[2]),
+                                                FindNode(myMesh,aNodeIds[3]),
+                                                FindNode(myMesh,aNodeIds[4]),
+                                                FindNode(myMesh,aNodeIds[5]),
+                                                FindNode(myMesh,aNodeIds[6]),
+                                                FindNode(myMesh,aNodeIds[7]),
+                                                FindNode(myMesh,aNodeIds[8]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eTETRA4:
+                  aNbNodes = 4;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eTETRA10:
+                  aNbNodes = 10;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case ePYRA5:
+                  aNbNodes = 5;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case ePYRA13:
+                  aNbNodes = 13;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aNodeIds[10], aNodeIds[11],
+                                                        aNodeIds[12],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]),
+                                                  FindNode(myMesh,aNodeIds[10]),
+                                                  FindNode(myMesh,aNodeIds[11]),
+                                                  FindNode(myMesh,aNodeIds[12]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case ePENTA6:
+                  aNbNodes = 6;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0],
+                                                        aNodeIds[1],
+                                                        aNodeIds[2],
+                                                        aNodeIds[3],
+                                                        aNodeIds[4],
+                                                        aNodeIds[5],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case ePENTA15:
+                  aNbNodes = 15;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aNodeIds[10], aNodeIds[11],
+                                                        aNodeIds[12], aNodeIds[13],
+                                                        aNodeIds[14],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]),
+                                                  FindNode(myMesh,aNodeIds[10]),
+                                                  FindNode(myMesh,aNodeIds[11]),
+                                                  FindNode(myMesh,aNodeIds[12]),
+                                                  FindNode(myMesh,aNodeIds[13]),
+                                                  FindNode(myMesh,aNodeIds[14]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case ePENTA18:
+                  aNbNodes = 18;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aNodeIds[10], aNodeIds[11],
+                                                        aNodeIds[12], aNodeIds[13],
+                                                        aNodeIds[14], aNodeIds[15],
+                                                        aNodeIds[16], aNodeIds[17],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]),
+                                                  FindNode(myMesh,aNodeIds[10]),
+                                                  FindNode(myMesh,aNodeIds[11]),
+                                                  FindNode(myMesh,aNodeIds[12]),
+                                                  FindNode(myMesh,aNodeIds[13]),
+                                                  FindNode(myMesh,aNodeIds[14]),
+                                                  FindNode(myMesh,aNodeIds[15]),
+                                                  FindNode(myMesh,aNodeIds[16]),
+                                                  FindNode(myMesh,aNodeIds[17]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+                case eHEXA8:
+                  aNbNodes = 8;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0],
+                                                        aNodeIds[1],
+                                                        aNodeIds[2],
+                                                        aNodeIds[3],
+                                                        aNodeIds[4],
+                                                        aNodeIds[5],
+                                                        aNodeIds[6],
+                                                        aNodeIds[7],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+
+                case eHEXA20:
+                  aNbNodes = 20;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aNodeIds[10], aNodeIds[11],
+                                                        aNodeIds[12], aNodeIds[13],
+                                                        aNodeIds[14], aNodeIds[15],
+                                                        aNodeIds[16], aNodeIds[17],
+                                                        aNodeIds[18], aNodeIds[19],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]),
+                                                  FindNode(myMesh,aNodeIds[10]),
+                                                  FindNode(myMesh,aNodeIds[11]),
+                                                  FindNode(myMesh,aNodeIds[12]),
+                                                  FindNode(myMesh,aNodeIds[13]),
+                                                  FindNode(myMesh,aNodeIds[14]),
+                                                  FindNode(myMesh,aNodeIds[15]),
+                                                  FindNode(myMesh,aNodeIds[16]),
+                                                  FindNode(myMesh,aNodeIds[17]),
+                                                  FindNode(myMesh,aNodeIds[18]),
+                                                  FindNode(myMesh,aNodeIds[19]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+
+                case eHEXA27:
+                  aNbNodes = 27;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aNodeIds[10], aNodeIds[11],
+                                                        aNodeIds[12], aNodeIds[13],
+                                                        aNodeIds[14], aNodeIds[15],
+                                                        aNodeIds[16], aNodeIds[17],
+                                                        aNodeIds[18], aNodeIds[19],
+                                                        aNodeIds[20], aNodeIds[21],
+                                                        aNodeIds[22], aNodeIds[23],
+                                                        aNodeIds[24], aNodeIds[25],
+                                                        aNodeIds[26],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]),
+                                                  FindNode(myMesh,aNodeIds[10]),
+                                                  FindNode(myMesh,aNodeIds[11]),
+                                                  FindNode(myMesh,aNodeIds[12]),
+                                                  FindNode(myMesh,aNodeIds[13]),
+                                                  FindNode(myMesh,aNodeIds[14]),
+                                                  FindNode(myMesh,aNodeIds[15]),
+                                                  FindNode(myMesh,aNodeIds[16]),
+                                                  FindNode(myMesh,aNodeIds[17]),
+                                                  FindNode(myMesh,aNodeIds[18]),
+                                                  FindNode(myMesh,aNodeIds[19]),
+                                                  FindNode(myMesh,aNodeIds[20]),
+                                                  FindNode(myMesh,aNodeIds[21]),
+                                                  FindNode(myMesh,aNodeIds[22]),
+                                                  FindNode(myMesh,aNodeIds[23]),
+                                                  FindNode(myMesh,aNodeIds[24]),
+                                                  FindNode(myMesh,aNodeIds[25]),
+                                                  FindNode(myMesh,aNodeIds[26]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+
+                case eOCTA12:
+                  aNbNodes = 12;
+                  if(anIsElemNum)
+                    anElement = myMesh->AddVolumeWithID(aNodeIds[0], aNodeIds[1],
+                                                        aNodeIds[2], aNodeIds[3],
+                                                        aNodeIds[4], aNodeIds[5],
+                                                        aNodeIds[6], aNodeIds[7],
+                                                        aNodeIds[8], aNodeIds[9],
+                                                        aNodeIds[10], aNodeIds[11],
+                                                        aCellInfo->GetElemNum(iElem));
+                  if (!anElement) {
+                    anElement = myMesh->AddVolume(FindNode(myMesh,aNodeIds[0]),
+                                                  FindNode(myMesh,aNodeIds[1]),
+                                                  FindNode(myMesh,aNodeIds[2]),
+                                                  FindNode(myMesh,aNodeIds[3]),
+                                                  FindNode(myMesh,aNodeIds[4]),
+                                                  FindNode(myMesh,aNodeIds[5]),
+                                                  FindNode(myMesh,aNodeIds[6]),
+                                                  FindNode(myMesh,aNodeIds[7]),
+                                                  FindNode(myMesh,aNodeIds[8]),
+                                                  FindNode(myMesh,aNodeIds[9]),
+                                                  FindNode(myMesh,aNodeIds[10]),
+                                                  FindNode(myMesh,aNodeIds[11]));
+                    isRenum = anIsElemNum;
+                  }
+                  break;
+
+                default:;
+
+                } // switch(aGeom)
+
+#ifndef _DEXCEPT_
+              } catch(const std::exception& exc) {
+                INFOS("The following exception was caught:\n\t"<<exc.what());
+                aResult = addMessage( exc.what(), /*isFatal=*/true );
+              } catch(...) {
+                INFOS("Unknown exception was caught !!!");
+                aResult = addMessage( "Unknown exception", /*isFatal=*/true );
+              }
+#endif
               if (!anElement) {
                 aResult = DRS_WARN_SKIP_ELEM;
               }
@@ -477,25 +1011,42 @@ Driver_Mesh::Status DriverMED_R_SMESHDS_Mesh::Perform()
                   if (aResult < DRS_WARN_RENUMBER)
                     aResult = DRS_WARN_RENUMBER;
                 }
-                if (myFamilies.find(aFamNum) != myFamilies.end()) {
+                if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies )) {
                   // Save reference to this element from its family
-                  myFamilies[aFamNum]->AddElement(anElement);
-                  myFamilies[aFamNum]->SetType(anElement->GetType());
+                  aFamily->AddElement(anElement);
+                  aFamily->SetType(anElement->GetType());
                 }
               }
-            }
-	  }
-	}
-	break;
-      }
-    }
-  }catch(const std::exception& exc){
-    INFOS("Follow exception was cought:\n\t"<<exc.what());
-    aResult = DRS_FAIL;
-  }catch(...){
-    INFOS("Unknown exception was cought !!!");
-    aResult = DRS_FAIL;
+            } // loop on aNbElems
+          }} // switch(aGeom)
+        } // loop on aGeom2Size
+      } // loop on aEntityInfo
+
+      if (aDescendingEntitiesMap.Extent()) isDescConn = true; // Mantis issue 0020483
+
+    } // for(int iMesh = 0; iMesh < aNbMeshes; iMesh++)
+#ifndef _DEXCEPT_
   }
+  catch(const std::exception& exc)
+  {
+    INFOS("The following exception was caught:\n\t"<<exc.what());
+    aResult = addMessage( exc.what(), /*isFatal=*/true );
+  }
+  catch(...)
+  {
+    INFOS("Unknown exception was caught !!!");
+    aResult = addMessage( "Unknown exception", /*isFatal=*/true );
+  }
+#endif
+  if (myMesh)
+    myMesh->compactMesh();
+
+  // Mantis issue 0020483
+  if (aResult == DRS_OK && isDescConn) {
+    INFOS("There are some elements in descending connectivity in med file. They were not read !!!");
+    aResult = DRS_WARN_DESCENDING;
+  }
+
   if(MYDEBUG) MESSAGE("Perform - aResult status = "<<aResult);
   return aResult;
 }
@@ -511,44 +1062,45 @@ list<string> DriverMED_R_SMESHDS_Mesh::GetMeshNames(Status& theStatus)
 
     if (TInt aNbMeshes = aMed->GetNbMeshes()) {
       for (int iMesh = 0; iMesh < aNbMeshes; iMesh++) {
-	// Reading the MED mesh
-	//---------------------
-	PMeshInfo aMeshInfo = aMed->GetPMeshInfo(iMesh+1);
-	aMeshNames.push_back(aMeshInfo->GetName());
+        // Reading the MED mesh
+        //---------------------
+        PMeshInfo aMeshInfo = aMed->GetPMeshInfo(iMesh+1);
+        aMeshNames.push_back(aMeshInfo->GetName());
       }
     }
-  }catch(const std::exception& exc){
-    INFOS("Follow exception was cought:\n\t"<<exc.what());
+  } catch(const std::exception& exc) {
+    INFOS("Following exception was caught:\n\t"<<exc.what());
     theStatus = DRS_FAIL;
-  }catch(...){
-    INFOS("Unknown exception was cought !!!");
+  } catch(...) {
+    INFOS("Unknown exception was caught !!!");
     theStatus = DRS_FAIL;
   }
 
   return aMeshNames;
 }
 
-list<string> DriverMED_R_SMESHDS_Mesh::GetGroupNames()
+list<TNameAndType> DriverMED_R_SMESHDS_Mesh::GetGroupNamesAndTypes()
 {
-  list<string> aResult;
-  set<string> aResGroupNames;
+  list<TNameAndType> aResult;
+  set<TNameAndType> aResGroupNames;
 
   map<int, DriverMED_FamilyPtr>::iterator aFamsIter = myFamilies.begin();
   for (; aFamsIter != myFamilies.end(); aFamsIter++)
   {
     DriverMED_FamilyPtr aFamily = (*aFamsIter).second;
     const MED::TStringSet& aGroupNames = aFamily->GetGroupNames();
-    set<string>::iterator aGrNamesIter = aGroupNames.begin();
+    set<string>::const_iterator aGrNamesIter = aGroupNames.begin();
     for (; aGrNamesIter != aGroupNames.end(); aGrNamesIter++)
     {
-      string aName = *aGrNamesIter;
-      // Check, if this is a Group or SubMesh name
-//if (aName.substr(0, 5) == string("Group")) {
-        if (aResGroupNames.find(aName) == aResGroupNames.end()) {
-          aResGroupNames.insert(aName);
-          aResult.push_back(aName);
+      const ElemTypeSet& types = aFamily->GetTypes();
+      ElemTypeSet::const_iterator type = types.begin();
+      for ( ; type != types.end(); ++type )
+      {
+        TNameAndType aNameAndType = make_pair( *aGrNamesIter, *type );
+        if ( aResGroupNames.insert( aNameAndType ).second ) {
+          aResult.push_back( aNameAndType );
         }
-//    }
+      }
     }
   }
 
@@ -557,25 +1109,51 @@ list<string> DriverMED_R_SMESHDS_Mesh::GetGroupNames()
 
 void DriverMED_R_SMESHDS_Mesh::GetGroup(SMESHDS_Group* theGroup)
 {
-  string aGroupName (theGroup->GetStoreName());
+  TFamilyVec * famVecPtr;
+
+  if ( myGroups2FamiliesMap.IsEmpty() ) // PAL23514
+  {
+    TFamilyVec famVector( 1 );
+    map<int, DriverMED_FamilyPtr>::iterator famIter = myFamilies.begin();
+    for ( ; famIter != myFamilies.end(); famIter++ )
+    {
+      DriverMED_FamilyPtr    family = famIter->second;
+      const MED::TStringSet& groups = family->GetGroupNames();
+      famVector[ 0 ] = family;
+      MED::TStringSet::const_iterator grpIter = groups.begin();
+      for ( ; grpIter != groups.end(); ++grpIter )
+      {
+        TCollection_AsciiString groupName = grpIter->c_str();
+        if (( famVecPtr = myGroups2FamiliesMap.ChangeSeek( groupName )))
+          famVecPtr->push_back( family );
+        else
+          myGroups2FamiliesMap.Bind( groupName, famVector );
+      }
+    }
+  }
+
+  const char* aGroupName = theGroup->GetStoreName();
   if(MYDEBUG) MESSAGE("Get Group " << aGroupName);
 
-  map<int, DriverMED_FamilyPtr>::iterator aFamsIter = myFamilies.begin();
-  for (; aFamsIter != myFamilies.end(); aFamsIter++)
+  if (( famVecPtr = myGroups2FamiliesMap.ChangeSeek( aGroupName )))
   {
-    DriverMED_FamilyPtr aFamily = (*aFamsIter).second;
-    if (aFamily->MemberOf(aGroupName))
+    for ( size_t i = 0; i < famVecPtr->size(); ++i )
     {
-      const set<const SMDS_MeshElement *>& anElements = aFamily->GetElements();
-      set<const SMDS_MeshElement *>::iterator anElemsIter = anElements.begin();
-      const SMDS_MeshElement * element = 0;
-      for (; anElemsIter != anElements.end(); anElemsIter++)
+      DriverMED_FamilyPtr aFamily = (*famVecPtr)[i];
+      if ( aFamily->GetTypes().count( theGroup->GetType() ))
       {
-        element = *anElemsIter;
-        theGroup->SMDSGroup().Add(element);
+        const ElementsSet&           anElements = aFamily->GetElements();
+        ElementsSet::const_iterator anElemsIter = anElements.begin();
+        for (; anElemsIter != anElements.end(); anElemsIter++)
+        {
+          const SMDS_MeshElement * element = *anElemsIter;
+          if ( element->GetType() == theGroup->GetType() ) // Issue 0020576
+            theGroup->SMDSGroup().Add(element);
+        }
+        int aGroupAttrVal = aFamily->GetGroupAttributVal();
+        if( aGroupAttrVal != 0 )
+          theGroup->SetColorGroup(aGroupAttrVal);
       }
-      if ( element )
-        theGroup->SetType( element->GetType() );
     }
   }
 }
@@ -592,8 +1170,8 @@ void DriverMED_R_SMESHDS_Mesh::GetSubMesh (SMESHDS_SubMesh* theSubMesh,
     DriverMED_FamilyPtr aFamily = (*aFamsIter).second;
     if (aFamily->MemberOf(aName))
     {
-      const set<const SMDS_MeshElement *>& anElements = aFamily->GetElements();
-      set<const SMDS_MeshElement *>::iterator anElemsIter = anElements.begin();
+      const ElementsSet&           anElements = aFamily->GetElements();
+      ElementsSet::const_iterator anElemsIter = anElements.begin();
       if (aFamily->GetType() == SMDSAbs_Node)
       {
         for (; anElemsIter != anElements.end(); anElemsIter++)
@@ -628,14 +1206,13 @@ void DriverMED_R_SMESHDS_Mesh::CreateAllSubMeshes ()
       if (aName.substr(0, 7) == string("SubMesh"))
       {
         int Id = atoi(string(aName).substr(7).c_str());
-        set<const SMDS_MeshElement *> anElements = aFamily->GetElements();
-        set<const SMDS_MeshElement *>::iterator anElemsIter = anElements.begin();
+        const ElementsSet&           anElements = aFamily->GetElements();
+        ElementsSet::const_iterator anElemsIter = anElements.begin();
         if (aFamily->GetType() == SMDSAbs_Node)
         {
           for (; anElemsIter != anElements.end(); anElemsIter++)
           {
-            SMDS_MeshNode* node = const_cast<SMDS_MeshNode*>
-              ( static_cast<const SMDS_MeshNode*>( *anElemsIter ));
+            const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( *anElemsIter );
             // find out a shape type
             TopoDS_Shape aShape = myMesh->IndexToShape( Id );
             int aShapeType = ( aShape.IsNull() ? -1 : aShape.ShapeType() );
@@ -662,3 +1239,121 @@ void DriverMED_R_SMESHDS_Mesh::CreateAllSubMeshes ()
     }
   }
 }
+/*!
+ * \brief Ensure aFamily to have required ID
+ * \param aFamily - a family to check and update
+ * \param anID - an ID aFamily should have
+ * \retval bool  - true if successful
+ */
+bool DriverMED::checkFamilyID(DriverMED_FamilyPtr & aFamily,
+                              int                   anID,
+                              const TID2FamilyMap&  myFamilies)
+{
+  if ( !aFamily || aFamily->GetId() != anID ) {
+    map<int, DriverMED_FamilyPtr>::const_iterator i_fam = myFamilies.find(anID);
+    if ( i_fam == myFamilies.end() )
+      return false;
+    aFamily = i_fam->second;
+  }
+  return ( aFamily->GetId() == anID );
+}
+
+/*!
+ * \brief Reading the structured mesh and convert to non structured
+ *        (by filling of smesh structure for non structured mesh)
+ * \param theWrapper  - PWrapper const pointer
+ * \param theMeshInfo - PMeshInfo const pointer
+ * \param myFamilies  - a map of the family ID to the Family
+ * \return TRUE, if successfully. Else FALSE
+ */
+bool DriverMED::buildMeshGrille(const MED::PWrapper&  theWrapper,
+                                const MED::PMeshInfo& theMeshInfo,
+                                SMESHDS_Mesh*         myMesh,
+                                const TID2FamilyMap&  myFamilies)
+{
+  bool res = true;
+
+  MED::PGrilleInfo aGrilleInfo = theWrapper->GetPGrilleInfo(theMeshInfo);
+  MED::TInt aNbNodes = aGrilleInfo->GetNbNodes();
+  MED::TInt aNbCells = aGrilleInfo->GetNbCells();
+  MED::TInt aMeshDim = theMeshInfo->GetDim();
+  DriverMED_FamilyPtr aFamily;
+  for(MED::TInt iNode=0;iNode < aNbNodes; iNode++){
+    double aCoords[3] = {0.0, 0.0, 0.0};
+    const SMDS_MeshNode* aNode;
+    MED::TNodeCoord aMEDNodeCoord = aGrilleInfo->GetCoord(iNode);
+    for(MED::TInt iDim=0;iDim<aMeshDim;iDim++)
+      aCoords[(int)iDim] = aMEDNodeCoord[(int)iDim];
+    aNode = myMesh->AddNodeWithID(aCoords[0],aCoords[1],aCoords[2],iNode+1);
+    if (!aNode) {
+      EXCEPTION(runtime_error,"buildMeshGrille Error. Node not created! "<<(int)iNode);
+    }
+
+    if((aGrilleInfo->myFamNumNode).size() > 0){
+      TInt aFamNum = aGrilleInfo->GetFamNumNode(iNode);
+      if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies ))
+        {
+          aFamily->AddElement(aNode);
+          aFamily->SetType(SMDSAbs_Node);
+        }
+    }
+    
+  }
+
+  SMDS_MeshElement* anElement = NULL;
+  MED::TIntVector aNodeIds;
+  for(MED::TInt iCell=0;iCell < aNbCells; iCell++){
+    aNodeIds = aGrilleInfo->GetConn(iCell);
+    switch(aGrilleInfo->GetGeom()){
+    case MED::eSEG2:
+      if(aNodeIds.size() != 2){
+        res = false;
+        EXCEPTION(runtime_error,"buildMeshGrille Error. Incorrect size of ids 2!="<<aNodeIds.size());
+      }
+      anElement = myMesh->AddEdgeWithID(aNodeIds[0]+1,
+                                        aNodeIds[1]+1,
+                                        iCell+1);
+      break;
+    case MED::eQUAD4:
+      if(aNodeIds.size() != 4){
+        res = false;
+        EXCEPTION(runtime_error,"buildMeshGrille Error. Incorrect size of ids 4!="<<aNodeIds.size());
+      }
+      anElement = myMesh->AddFaceWithID(aNodeIds[0]+1,
+                                        aNodeIds[2]+1,
+                                        aNodeIds[3]+1,
+                                        aNodeIds[1]+1,
+                                        iCell+1);
+      break;
+    case MED::eHEXA8:
+      if(aNodeIds.size() != 8){
+        res = false;
+        EXCEPTION(runtime_error,"buildMeshGrille Error. Incorrect size of ids 8!="<<aNodeIds.size());
+      }
+      anElement = myMesh->AddVolumeWithID(aNodeIds[0]+1,
+                                          aNodeIds[2]+1,
+                                          aNodeIds[3]+1,
+                                          aNodeIds[1]+1,
+                                          aNodeIds[4]+1,
+                                          aNodeIds[6]+1,
+                                          aNodeIds[7]+1,
+                                          aNodeIds[5]+1,
+                                          iCell+1);
+      break;
+    default:
+      break;
+    }
+    if (!anElement) {
+      EXCEPTION(runtime_error,"buildMeshGrille Error. Element not created! "<<iCell);
+    }
+    if((aGrilleInfo->myFamNum).size() > 0){
+      TInt aFamNum = aGrilleInfo->GetFamNum(iCell);
+      if ( DriverMED::checkFamilyID ( aFamily, aFamNum, myFamilies )){
+        aFamily->AddElement(anElement);
+        aFamily->SetType(anElement->GetType());
+      }
+    }
+  }
+
+  return res;
+}