//  SMESH DriverMED : driver to read and write 'med' files
//
//  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 
//
//
//
//  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 "MED_Factory.hxx"
#include "MED_CoordUtils.hxx"
#include "MED_Utilities.hxx"

#include <stdlib.h>

#ifdef _DEBUG_
static int MYDEBUG = 0;
//#define _DEXCEPT_
#else
static int MYDEBUG = 0;
#endif

#define _EDF_NODE_IDS_

using namespace MED;

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);
}


Driver_Mesh::Status 
DriverMED_R_SMESHDS_Mesh
::Perform()
{
  Status aResult = DRS_FAIL;
#ifndef _DEXCEPT_
  try{
#endif
    myFamilies.clear();
    if(MYDEBUG) MESSAGE("Perform - myFile : "<<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);
            }
            aFamily->SetId( aFamId );
            myFamilies[aFamId] = aFamily;
	  }
        }

        // Reading MED nodes to the corresponding SMDS structure
	//------------------------------------------------------
	PNodeInfo aNodeInfo = aMed->GetPNodeInfo(aMeshInfo);

	PCoordHelper aCoordHelper = GetCoordHelper(aNodeInfo);

	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->AddNode
              (aCoords[0],aCoords[1],aCoords[2]);
          }
          //cout<<aNode->GetID()<<": "<<aNode->X()<<", "<<aNode->Y()<<", "<<aNode->Z()<<endl;

          // Save reference to this node from its family
          TInt aFamNum = aNodeInfo->GetFamNum(iElem);
          if ( checkFamilyID ( aFamily, aFamNum ))
          {
            aFamily->AddElement(aNode);
            aFamily->SetType(SMDSAbs_Node);
          }
        }

	// 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);
	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::TGeom2Size& aGeom2Size = anEntityIter->second;
	  MED::TGeom2Size::const_iterator aGeom2SizeIter = aGeom2Size.begin();
	  for(; aGeom2SizeIter != aGeom2Size.end(); aGeom2SizeIter++){
	    const EGeometrieElement& aGeom = aGeom2SizeIter->first;

	    switch(aGeom){
	    case ePOINT1:
	      break;
	    case ePOLYGONE: {
              PPolygoneInfo aPolygoneInfo = aMed->GetPPolygoneInfo(aMeshInfo,anEntity,aGeom);
              EBooleen anIsElemNum = takeNumbers ? aPolygoneInfo->IsElemNum() : eFAUX;
	      
	      TInt aNbElem = aPolygoneInfo->GetNbElem();
	      for(TInt iElem = 0; iElem < aNbElem; iElem++){
		MED::TCConnSlice aConnSlice = aPolygoneInfo->GetConnSlice(iElem);
		TInt aNbConn = aPolygoneInfo->GetNbConn(iElem);
		TNodeIds aNodeIds(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->AddPolygonalFaceWithID(aNodeIds,anElemId);
		  }
                  if(!anElement){
                    std::vector<const SMDS_MeshNode*> aNodes(aNbConn);
		    for(TInt iConn = 0; iConn < aNbConn; iConn++)
                      aNodes[iConn] = FindNode(myMesh,aNodeIds[iConn]);
                    anElement = myMesh->AddPolygonalFace(aNodes);
                    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 ( checkFamilyID ( aFamily, aFamNum ))
                  {
                    // 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;

	      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(TInt iConn = 0; iConn < aNbConn; iConn++)
		      aNodeIds[iNode++] = aNodeInfo->GetElemNum(aConnSlice[iConn] - 1);
		  else
		    for(TInt iConn = 0; iConn < aNbConn; iConn++)
		      aNodeIds[iNode++] = aConnSlice[iConn];
#else
		  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){
		    std::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 ( checkFamilyID ( aFamily, aFamNum )) {
		    // 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);

              for(int iElem = 0; iElem < aNbElems; iElem++){
                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 eQUAD4:   aNbNodes = 4;  break;
                case eQUAD8:   aNbNodes = 8;  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 eHEXA8:   aNbNodes = 8;  break;
                case eHEXA20:  aNbNodes = 20; break;
                default:;
                }
                vector<TInt> aNodeIds(aNbNodes);
                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("Follow exception was cought:\n\t"<<exc.what());
                  aResult = DRS_FAIL;
                }catch(...){
                  //INFOS("Unknown exception was cought !!!");
                  aResult = DRS_FAIL;
                }
#endif          
                if(!anIsValidConnect)
                  continue;

                bool isRenum = false;
                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 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 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 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;
                    // 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 ePYRA13:
                    aNbNodes = 13;
                    // There is some differnce between SMDS and MED
                    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 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;
                  }
#ifndef _DEXCEPT_
                }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;
                }
#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 ( checkFamilyID ( aFamily, aFamNum )) {
                    // Save reference to this element from its family
                    myFamilies[aFamNum]->AddElement(anElement);
                    myFamilies[aFamNum]->SetType(anElement->GetType());
                  }
                }
              }
            }}
          }
        }
      }
    }
#ifndef _DEXCEPT_
  }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;
  }
#endif
  if(MYDEBUG) MESSAGE("Perform - aResult status = "<<aResult);
  return aResult;
}

list<string> DriverMED_R_SMESHDS_Mesh::GetMeshNames(Status& theStatus)
{
  list<string> aMeshNames;

  try {
    if(MYDEBUG) MESSAGE("GetMeshNames - myFile : " << myFile);
    theStatus = DRS_OK;
    PWrapper aMed = CrWrapper(myFile);

    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());
      }
    }
  }catch(const std::exception& exc){
    INFOS("Follow exception was cought:\n\t"<<exc.what());
    theStatus = DRS_FAIL;
  }catch(...){
    INFOS("Unknown exception was cought !!!");
    theStatus = DRS_FAIL;
  }

  return aMeshNames;
}

list<TNameAndType> DriverMED_R_SMESHDS_Mesh::GetGroupNamesAndTypes()
{
  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>::const_iterator aGrNamesIter = aGroupNames.begin();
    for (; aGrNamesIter != aGroupNames.end(); aGrNamesIter++)
    {
      TNameAndType aNameAndType = make_pair( *aGrNamesIter, aFamily->GetType() );
      // Check, if this is a Group or SubMesh name
//if (aName.substr(0, 5) == string("Group")) {
        if ( aResGroupNames.insert( aNameAndType ).second ) {
          aResult.push_back( aNameAndType );
        }
//    }
    }
  }

  return aResult;
}

void DriverMED_R_SMESHDS_Mesh::GetGroup(SMESHDS_Group* theGroup)
{
  string aGroupName (theGroup->GetStoreName());
  if(MYDEBUG) MESSAGE("Get Group " << aGroupName);

  map<int, DriverMED_FamilyPtr>::iterator aFamsIter = myFamilies.begin();
  for (; aFamsIter != myFamilies.end(); aFamsIter++)
  {
    DriverMED_FamilyPtr aFamily = (*aFamsIter).second;
    if (aFamily->GetType() == theGroup->GetType() && aFamily->MemberOf(aGroupName))
    {
      const set<const SMDS_MeshElement *>& anElements = aFamily->GetElements();
      set<const SMDS_MeshElement *>::const_iterator anElemsIter = anElements.begin();
      const SMDS_MeshElement * element = 0;
      for (; anElemsIter != anElements.end(); anElemsIter++)
      {
        element = *anElemsIter;
	theGroup->SMDSGroup().Add(element);
      }
      if ( element )
        theGroup->SetType( element->GetType() );
    }
  }
}

void DriverMED_R_SMESHDS_Mesh::GetSubMesh (SMESHDS_SubMesh* theSubMesh,
                                           const int theId)
{
  char submeshGrpName[ 30 ];
  sprintf( submeshGrpName, "SubMesh %d", theId );
  string aName (submeshGrpName);
  map<int, DriverMED_FamilyPtr>::iterator aFamsIter = myFamilies.begin();
  for (; aFamsIter != myFamilies.end(); aFamsIter++)
  {
    DriverMED_FamilyPtr aFamily = (*aFamsIter).second;
    if (aFamily->MemberOf(aName))
    {
      const set<const SMDS_MeshElement *>& anElements = aFamily->GetElements();
      set<const SMDS_MeshElement *>::const_iterator anElemsIter = anElements.begin();
      if (aFamily->GetType() == SMDSAbs_Node)
      {
        for (; anElemsIter != anElements.end(); anElemsIter++)
        {
          const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>(*anElemsIter);
          theSubMesh->AddNode(node);
        }
      }
      else
      {
        for (; anElemsIter != anElements.end(); anElemsIter++)
        {
          theSubMesh->AddElement(*anElemsIter);
        }
      }
    }
  }
}

void DriverMED_R_SMESHDS_Mesh::CreateAllSubMeshes ()
{
  map<int, DriverMED_FamilyPtr>::iterator aFamsIter = myFamilies.begin();
  for (; aFamsIter != myFamilies.end(); aFamsIter++)
  {
    DriverMED_FamilyPtr aFamily = (*aFamsIter).second;
    MED::TStringSet aGroupNames = aFamily->GetGroupNames();
    set<string>::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, 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();
        if (aFamily->GetType() == SMDSAbs_Node)
        {
          for (; anElemsIter != anElements.end(); anElemsIter++)
          {
            SMDS_MeshNode* node = const_cast<SMDS_MeshNode*>
              ( static_cast<const SMDS_MeshNode*>( *anElemsIter ));
            // find out a shape type
            TopoDS_Shape aShape = myMesh->IndexToShape( Id );
            int aShapeType = ( aShape.IsNull() ? -1 : aShape.ShapeType() );
            switch ( aShapeType ) {
            case TopAbs_FACE:
              myMesh->SetNodeOnFace(node, Id); break;
            case TopAbs_EDGE:
              myMesh->SetNodeOnEdge(node, Id); break;
            case TopAbs_VERTEX:
              myMesh->SetNodeOnVertex(node, Id); break;
            default:
              myMesh->SetNodeInVolume(node, Id);
            }
          }
        }
        else
        {
          for (; anElemsIter != anElements.end(); anElemsIter++)
          {
            myMesh->SetMeshElementOnShape(*anElemsIter, Id);
          }
        }
      }
    }
  }
}
/*!
 * \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_R_SMESHDS_Mesh::checkFamilyID(DriverMED_FamilyPtr & aFamily, int anID) const
{
  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 );
}