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Merge from V5_1_3_BR branch (07/12/09)
[modules/smesh.git] / src / SMESH_I / SMESH_Gen_i.cxx
index fcbf895c030469f7dab23623117f49cbc793dac0..899581804e70624205c88d31e152412faacb85dd 100644 (file)
@@ -1,31 +1,29 @@
-//  SMESH SMESH_I : idl implementation based on 'SMESH' unit's calsses
+//  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
 //
-//  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 
+//  Copyright (C) 2003-2007  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.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+//  SMESH SMESH_I : idl implementation based on 'SMESH' unit's calsses
 //  File   : SMESH_Gen_i.cxx
 //  Author : Paul RASCLE, EDF
 //  Module : SMESH
-//  $Header$
-
+//
 #include <TopExp.hxx>
 #include <TopExp_Explorer.hxx>
 #include <TopoDS.hxx>
 #include <TopoDS_Shape.hxx>
 #include <TopTools_MapOfShape.hxx>
 #include <TopTools_IndexedMapOfShape.hxx>
+#include <TopTools_ListOfShape.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
 #include <gp_Pnt.hxx>
 #include <BRep_Tool.hxx>
 #include <TCollection_AsciiString.hxx>
+#include <OSD.hxx>
 
 #include "Utils_CorbaException.hxx"
 
 #include "utilities.h"
 #include <fstream>
 #include <stdio.h>
-#include <dlfcn.h>
+
+#ifdef WNT
+ #include <windows.h>
+#else
+ #include <dlfcn.h>
+#endif
+
+#ifdef WNT
+ #define LibHandle HMODULE
+ #define LoadLib( name ) LoadLibrary( name )
+ #define GetProc GetProcAddress
+ #define UnLoadLib( handle ) FreeLibrary( handle );
+#else
+ #define LibHandle void*
+ #define LoadLib( name ) dlopen( name, RTLD_LAZY )
+ #define GetProc dlsym
+ #define UnLoadLib( handle ) dlclose( handle );
+#endif
 
 #include <HDFOI.hxx>
 
 #include "SMESH_Hypothesis_i.hxx"
 #include "SMESH_Algo_i.hxx"
 #include "SMESH_Group_i.hxx"
+#include "SMESH_PythonDump.hxx"
 
 #include "SMESHDS_Document.hxx"
 #include "SMESHDS_Group.hxx"
 #include "SMESHDS_GroupOnGeom.hxx"
+#include "SMESH_Mesh.hxx"
+#include "SMESH_Hypothesis.hxx"
 #include "SMESH_Group.hxx"
+#include "SMESH_MeshEditor.hxx"
 
 #include "SMDS_EdgePosition.hxx"
 #include "SMDS_FacePosition.hxx"
+#include "SMDS_VertexPosition.hxx"
+#include "SMDS_SpacePosition.hxx"
+#include "SMDS_PolyhedralVolumeOfNodes.hxx"
 
 #include CORBA_SERVER_HEADER(SMESH_Group)
 #include CORBA_SERVER_HEADER(SMESH_Filter)
+#include CORBA_SERVER_HEADER(SMESH_MeshEditor)
 
 #include "DriverMED_W_SMESHDS_Mesh.h"
 #include "DriverMED_R_SMESHDS_Mesh.h"
 #include "Utils_ExceptHandlers.hxx"
 
 #include <map>
-#include <boost/filesystem/path.hpp>
 
 using namespace std;
+using SMESH::TPythonDump;
 
 #define NUM_TMP_FILES 2
 
@@ -99,12 +125,16 @@ static int MYDEBUG = 0;
 #endif
 
 // Static variables definition
+GEOM::GEOM_Gen_var      SMESH_Gen_i::myGeomGen = GEOM::GEOM_Gen::_nil();
 CORBA::ORB_var          SMESH_Gen_i::myOrb;
 PortableServer::POA_var SMESH_Gen_i::myPoa;
 SALOME_NamingService*   SMESH_Gen_i::myNS  = NULL;
 SALOME_LifeCycleCORBA*  SMESH_Gen_i::myLCC = NULL;
 SMESH_Gen_i*            SMESH_Gen_i::mySMESHGen = NULL;
 
+
+const int nbElemPerDiagonal = 10;
+
 //=============================================================================
 /*!
  *  GetServant [ static ]
@@ -142,11 +172,11 @@ CORBA::Object_var SMESH_Gen_i::SObjectToObject( SALOMEDS::SObject_ptr theSObject
   if ( !theSObject->_is_nil() ) {
     try {
       if( theSObject->FindAttribute( anAttr, "AttributeIOR" ) ) {
-       SALOMEDS::AttributeIOR_var anIOR  = SALOMEDS::AttributeIOR::_narrow( anAttr );
-       CORBA::String_var aValue = anIOR->Value();
-       if( strcmp( aValue, "" ) != 0 )
-         anObj = GetORB()->string_to_object( aValue );
-       }
+        SALOMEDS::AttributeIOR_var anIOR  = SALOMEDS::AttributeIOR::_narrow( anAttr );
+        CORBA::String_var aValue = anIOR->Value();
+        if( strcmp( aValue, "" ) != 0 )
+          anObj = GetORB()->string_to_object( aValue );
+        }
     }
     catch( ... ) {
       INFOS( "SObjectToObject - Unknown exception was caught!!!" );
@@ -196,9 +226,15 @@ SALOME_LifeCycleCORBA*  SMESH_Gen_i::GetLCC() {
  */
 //=============================================================================     
 GEOM::GEOM_Gen_ptr SMESH_Gen_i::GetGeomEngine() {
-  GEOM::GEOM_Gen_var aGeomEngine =
-    GEOM::GEOM_Gen::_narrow( GetLCC()->FindOrLoad_Component("FactoryServer","GEOM") );
-  return aGeomEngine._retn();
+  //CCRT GEOM::GEOM_Gen_var aGeomEngine =
+  //CCRT   GEOM::GEOM_Gen::_narrow( GetLCC()->FindOrLoad_Component("FactoryServer","GEOM") );
+  //CCRT return aGeomEngine._retn();
+  if(CORBA::is_nil(myGeomGen))
+  {
+    Engines::Component_ptr temp=GetLCC()->FindOrLoad_Component("FactoryServer","GEOM");
+    myGeomGen=GEOM::GEOM_Gen::_narrow(temp);
+  }
+  return myGeomGen;
 }
 
 //=============================================================================
@@ -223,13 +259,13 @@ SMESH_Gen_i::SMESH_Gen_i()
 //=============================================================================
 
 SMESH_Gen_i::SMESH_Gen_i( CORBA::ORB_ptr            orb,
-                         PortableServer::POA_ptr   poa,
-                         PortableServer::ObjectId* contId, 
-                         const char*               instanceName, 
+                          PortableServer::POA_ptr   poa,
+                          PortableServer::ObjectId* contId, 
+                          const char*               instanceName, 
                           const char*               interfaceName )
      : Engines_Component_i( orb, poa, contId, instanceName, interfaceName )
 {
-  INFOS( "SMESH_Gen_i::SMESH_Gen_i : standard constructor" );
+  MESSAGE( "SMESH_Gen_i::SMESH_Gen_i : standard constructor" );
 
   myOrb = CORBA::ORB::_duplicate(orb);
   myPoa = PortableServer::POA::_duplicate(poa);
@@ -237,8 +273,12 @@ SMESH_Gen_i::SMESH_Gen_i( CORBA::ORB_ptr            orb,
   _thisObj = this ;
   _id = myPoa->activate_object( _thisObj );
   
+  myIsEmbeddedMode = false;
   myShapeReader = NULL;  // shape reader
   mySMESHGen = this;
+
+  // set it in standalone mode only
+  //OSD::SetSignal( true );
 }
 
 //=============================================================================
@@ -283,8 +323,51 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
                                                           const char* theLibName)
      throw (SALOME::SALOME_Exception)
 {
+  /* It's Need to tranlate lib name for WIN32 or X platform */
+  char* aPlatformLibName = 0;
+  if ( theLibName && theLibName[0] != '\0'  )
+  {
+    int libNameLen = strlen(theLibName);
+    //check for old format "libXXXXXXX.so"
+    if (libNameLen > 7 &&
+        !strncmp( theLibName, "lib", 3 ) &&
+        !strcmp( theLibName+libNameLen-3, ".so" ))
+    {
+      //the old format
+#ifdef WNT
+      aPlatformLibName = new char[libNameLen - 1];
+      aPlatformLibName[0] = '\0';
+      aPlatformLibName = strncat( aPlatformLibName, theLibName+3, libNameLen-6  );
+      aPlatformLibName = strcat( aPlatformLibName, ".dll" );
+      aPlatformLibName[libNameLen - 2] = '\0';
+#else
+      aPlatformLibName = new char[ libNameLen + 1];
+      aPlatformLibName[0] = '\0';
+      aPlatformLibName = strcat( aPlatformLibName, theLibName );
+      aPlatformLibName[libNameLen] = '\0';
+#endif
+    }
+    else
+    {
+      //try to use new format 
+#ifdef WNT
+      aPlatformLibName = new char[ libNameLen + 5 ];
+      aPlatformLibName[0] = '\0';
+      aPlatformLibName = strcat( aPlatformLibName, theLibName );
+      aPlatformLibName = strcat( aPlatformLibName, ".dll" );
+#else
+      aPlatformLibName = new char[ libNameLen + 7 ];
+      aPlatformLibName[0] = '\0';
+      aPlatformLibName = strcat( aPlatformLibName, "lib" );
+      aPlatformLibName = strcat( aPlatformLibName, theLibName );
+      aPlatformLibName = strcat( aPlatformLibName, ".so" );
+#endif
+    }
+  }
+
+
   Unexpect aCatch(SALOME_SalomeException);
-  if(MYDEBUG) MESSAGE( "Create Hypothesis <" << theHypName << "> from " << theLibName);
+  if(MYDEBUG) MESSAGE( "Create Hypothesis <" << theHypName << "> from " << aPlatformLibName/*theLibName*/);
 
   // create a new hypothesis object servant
   SMESH_Hypothesis_i* myHypothesis_i = 0;
@@ -297,23 +380,27 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
     {
       // load plugin library
       if(MYDEBUG) MESSAGE("Loading server meshers plugin library ...");
-      void* libHandle = dlopen (theLibName, RTLD_LAZY);
+      LibHandle libHandle = LoadLib( aPlatformLibName/*theLibName*/ );
       if (!libHandle)
       {
         // report any error, if occured
+#ifndef WNT
         const char* anError = dlerror();
         throw(SALOME_Exception(anError));
+#else
+        throw(SALOME_Exception(LOCALIZED( "Can't load server meshers plugin library" )));
+#endif
       }
 
       // get method, returning hypothesis creator
       if(MYDEBUG) MESSAGE("Find GetHypothesisCreator() method ...");
       typedef GenericHypothesisCreator_i* (*GetHypothesisCreator)(const char* theHypName);
       GetHypothesisCreator procHandle =
-        (GetHypothesisCreator)dlsym( libHandle, "GetHypothesisCreator" );
+        (GetHypothesisCreator)GetProc( libHandle, "GetHypothesisCreator" );
       if (!procHandle)
       {
         throw(SALOME_Exception(LOCALIZED("bad hypothesis plugin library")));
-        dlclose(libHandle);
+        UnLoadLib(libHandle);
       }
 
       // get hypothesis creator
@@ -331,27 +418,28 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::createHypothesis(const char* theHypName
     // create a new hypothesis object, store its ref. in studyContext
     if(MYDEBUG) MESSAGE("Create Hypothesis " << theHypName);
     myHypothesis_i =
-      myHypCreatorMap[string(theHypName)]->Create (myPoa, GetCurrentStudyID(), &myGen);
-    // _CS_gbo Explicit activation (no longer made in the constructor).
-    myHypothesis_i->Activate();
-    myHypothesis_i->SetLibName(theLibName); // for persistency assurance
+      myHypCreatorMap[string(theHypName)]->Create(myPoa, GetCurrentStudyID(), &myGen);
+    myHypothesis_i->SetLibName(aPlatformLibName/*theLibName*/); // for persistency assurance
   }
   catch (SALOME_Exception& S_ex)
   {
     THROW_SALOME_CORBA_EXCEPTION(S_ex.what(), SALOME::BAD_PARAM);
   }
 
+  if ( aPlatformLibName )
+    delete[] aPlatformLibName;
+
   if (!myHypothesis_i)
     return hypothesis_i._retn();
 
   // activate the CORBA servant of hypothesis
   hypothesis_i = SMESH::SMESH_Hypothesis::_narrow( myHypothesis_i->_this() );
   int nextId = RegisterObject( hypothesis_i );
-  if(MYDEBUG) MESSAGE( "Add hypo to map with id = "<< nextId );
+  if(MYDEBUG) MESSAGE( "Add hypo to map with id = "<< nextId );  
 
   return hypothesis_i._retn();
 }
-  
+
 //=============================================================================
 /*!
  *  SMESH_Gen_i::createMesh
@@ -370,7 +458,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::createMesh()
     // create a new mesh object servant, store it in a map in study context
     SMESH_Mesh_i* meshServant = new SMESH_Mesh_i( GetPOA(), this, GetCurrentStudyID() );
     // create a new mesh object
-    meshServant->SetImpl( myGen.CreateMesh( GetCurrentStudyID() ));
+    meshServant->SetImpl( myGen.CreateMesh( GetCurrentStudyID(), myIsEmbeddedMode ));
 
     // activate the CORBA servant of Mesh
     SMESH::SMESH_Mesh_var mesh = SMESH::SMESH_Mesh::_narrow( meshServant->_this() );
@@ -400,6 +488,67 @@ GEOM_Client* SMESH_Gen_i::GetShapeReader()
   return myShapeReader;
 }
 
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::SetGeomEngine
+ *
+ *  Set GEOM::GEOM_Gen reference
+ */
+//=============================================================================
+//GEOM::GEOM_Gen_ptr SMESH_Gen_i::SetGeomEngine( const char* containerLoc )
+void SMESH_Gen_i::SetGeomEngine( GEOM::GEOM_Gen_ptr geomcompo )
+{
+  //Engines::Component_ptr temp=GetLCC()->FindOrLoad_Component(containerLoc,"GEOM");
+  //myGeomGen=GEOM::GEOM_Gen::_narrow(temp);
+  myGeomGen=GEOM::GEOM_Gen::_duplicate(geomcompo);
+  //return myGeomGen;
+}
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::SetEmbeddedMode
+ *
+ *  Set current mode
+ */
+//=============================================================================
+
+void SMESH_Gen_i::SetEmbeddedMode( CORBA::Boolean theMode )
+{
+  myIsEmbeddedMode = theMode;
+
+  if ( !myIsEmbeddedMode ) {
+    //PAL10867: disable signals catching with "noexcepthandler" option
+    char* envNoCatchSignals = getenv("NOT_INTERCEPT_SIGNALS");
+    if (!envNoCatchSignals || !atoi(envNoCatchSignals))
+    {
+      bool raiseFPE;
+#ifdef _DEBUG_
+      raiseFPE = true;
+      char* envDisableFPE = getenv("DISABLE_FPE");
+      if (envDisableFPE && atoi(envDisableFPE))
+        raiseFPE = false;
+#else
+      raiseFPE = false;
+#endif
+      OSD::SetSignal( raiseFPE );
+    }
+    // else OSD::SetSignal() is called in GUI
+  }
+}
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::IsEmbeddedMode
+ *
+ *  Get current mode
+ */
+//=============================================================================
+
+CORBA::Boolean SMESH_Gen_i::IsEmbeddedMode()
+{
+  return myIsEmbeddedMode;
+}
+
 //=============================================================================
 /*!
  *  SMESH_Gen_i::SetCurrentStudy
@@ -410,23 +559,38 @@ GEOM_Client* SMESH_Gen_i::GetShapeReader()
 
 void SMESH_Gen_i::SetCurrentStudy( SALOMEDS::Study_ptr theStudy )
 {
-  //if(MYDEBUG)
-    MESSAGE( "SMESH_Gen_i::SetCurrentStudy" );
+  int curStudyId = GetCurrentStudyID();
   myCurrentStudy = SALOMEDS::Study::_duplicate( theStudy );
   // create study context, if it doesn't exist and set current study
   int studyId = GetCurrentStudyID();
-  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::SetCurrentStudy: study Id = " << studyId );
   if ( myStudyContextMap.find( studyId ) == myStudyContextMap.end() ) {
     myStudyContextMap[ studyId ] = new StudyContext;      
   }
 
-  SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder(); 
-  if( !myCurrentStudy->FindComponent( "GEOM" )->_is_nil() )
-    aStudyBuilder->LoadWith( myCurrentStudy->FindComponent( "GEOM" ), GetGeomEngine() );
+  // myCurrentStudy may be nil
+  if ( !CORBA::is_nil( myCurrentStudy ) ) {
+    SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder(); 
+    if( !myCurrentStudy->FindComponent( "GEOM" )->_is_nil() )
+      aStudyBuilder->LoadWith( myCurrentStudy->FindComponent( "GEOM" ), GetGeomEngine() );
 
-  // set current study for geom engine
-  //if ( !CORBA::is_nil( GetGeomEngine() ) )
-  //  GetGeomEngine()->GetCurrentStudy( myCurrentStudy->StudyId() );
+    // NPAL16168, issue 0020210
+    // Let meshes update their data depending on GEOM groups that could change
+    if ( curStudyId != studyId )
+    {
+      //SALOMEDS::SComponent_var me =  PublishComponent( myCurrentStudy );
+      SALOMEDS::SComponent_var me = SALOMEDS::SComponent::_narrow
+        ( myCurrentStudy->FindComponent( ComponentDataType() ) );
+      if ( !me->_is_nil() ) {
+        SALOMEDS::ChildIterator_var anIter = myCurrentStudy->NewChildIterator( me );
+        for ( ; anIter->More(); anIter->Next() ) {
+          SALOMEDS::SObject_var so = anIter->Value();
+          CORBA::Object_var    ior = SObjectToObject( so );
+          if ( SMESH_Mesh_i*  mesh = SMESH::DownCast<SMESH_Mesh_i*>( ior ))
+            mesh->CheckGeomGroupModif();
+        }
+      }
+    }
+  }
 }
 
 //=============================================================================
@@ -480,20 +644,135 @@ SMESH::SMESH_Hypothesis_ptr SMESH_Gen_i::CreateHypothesis( const char* theHypNam
     SALOMEDS::SObject_var aSO = PublishHypothesis( myCurrentStudy, hyp );
     if ( !aSO->_is_nil() ) {
       // Update Python script
-      TCollection_AsciiString aStr (aSO->GetID());
-      aStr += " = smesh.CreateHypothesis(\"";
-      aStr += Standard_CString(theHypName);
-      aStr += "\", \"";
-      aStr += Standard_CString(theLibName);
-      aStr += "\")";
-
-      AddToCurrentPyScript(aStr);
+      TPythonDump() << aSO << " = " << this << ".CreateHypothesis('"
+                    << theHypName << "', '" << theLibName << "')";
     }
   }
 
   return hyp._retn();
 }
 
+//================================================================================
+/*!
+ * \brief Return a hypothesis holding parameter values corresponding either to the mesh
+ * existing on the given geometry or to size of the geometry.
+ *  \param theHypType - hypothesis type name
+ *  \param theLibName - plugin library name
+ *  \param theMesh - The mesh of interest
+ *  \param theGeom - The shape to get parameter values from
+ *  \retval SMESH::SMESH_Hypothesis_ptr - The returned hypothesis may be the one existing
+ *     in a study and used to compute the mesh, or a temporary one created just to pass
+ *     parameter values
+ */
+//================================================================================
+
+SMESH::SMESH_Hypothesis_ptr
+SMESH_Gen_i::GetHypothesisParameterValues (const char*           theHypType,
+                                           const char*           theLibName,
+                                           SMESH::SMESH_Mesh_ptr theMesh,
+                                           GEOM::GEOM_Object_ptr theGeom,
+                                           CORBA::Boolean        byMesh)
+  throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if ( byMesh && CORBA::is_nil( theMesh ) )
+    return SMESH::SMESH_Hypothesis::_nil();
+  if ( byMesh && CORBA::is_nil( theGeom ) )
+    return SMESH::SMESH_Hypothesis::_nil();
+
+  // -----------------------------------------------
+  // find hypothesis used to mesh theGeom
+  // -----------------------------------------------
+
+  // get mesh and shape
+  SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( theMesh );
+  TopoDS_Shape shape = GeomObjectToShape( theGeom );
+  if ( byMesh && ( !meshServant || meshServant->NbNodes()==0 || shape.IsNull() ))
+    return SMESH::SMESH_Hypothesis::_nil();
+  ::SMESH_Mesh* mesh = meshServant ? &meshServant->GetImpl() : (::SMESH_Mesh*)0;
+
+  // create a temporary hypothesis to know its dimention
+  SMESH::SMESH_Hypothesis_var tmpHyp = this->createHypothesis( theHypType, theLibName );
+  SMESH_Hypothesis_i* hypServant = SMESH::DownCast<SMESH_Hypothesis_i*>( tmpHyp );
+  if ( !hypServant )
+    return SMESH::SMESH_Hypothesis::_nil();
+  ::SMESH_Hypothesis* hyp = hypServant->GetImpl();
+
+  if ( byMesh ) {
+    // look for a hypothesis of theHypType used to mesh the shape
+    if ( myGen.GetShapeDim( shape ) == hyp->GetDim() )
+    {
+      // check local shape
+      SMESH::ListOfHypothesis_var aHypList = theMesh->GetHypothesisList( theGeom );
+      int nbLocalHyps = aHypList->length();
+      for ( int i = 0; i < nbLocalHyps; i++ )
+        if ( strcmp( theHypType, aHypList[i]->GetName() ) == 0 ) // FOUND local!
+          return SMESH::SMESH_Hypothesis::_duplicate( aHypList[i] );
+      // check super shapes
+      TopTools_ListIteratorOfListOfShape itShape( mesh->GetAncestors( shape ));
+      while ( nbLocalHyps == 0 && itShape.More() ) {
+        GEOM::GEOM_Object_ptr geomObj = ShapeToGeomObject( itShape.Value() );
+        if ( ! CORBA::is_nil( geomObj )) {
+          SMESH::ListOfHypothesis_var aHypList = theMesh->GetHypothesisList( geomObj );
+          nbLocalHyps = aHypList->length();
+          for ( int i = 0; i < nbLocalHyps; i++ )
+            if ( strcmp( theHypType, aHypList[i]->GetName() ) == 0 ) // FOUND global!
+              return SMESH::SMESH_Hypothesis::_duplicate( aHypList[i] );
+        }
+        itShape.Next();
+      }
+    }
+
+    // let the temporary hypothesis find out some how parameter values by mesh
+    if ( hyp->SetParametersByMesh( mesh, shape ))
+      return SMESH::SMESH_Hypothesis::_duplicate( tmpHyp );
+  }
+  else {
+    double diagonal = 0;
+    if ( mesh )
+      diagonal = mesh->GetShapeDiagonalSize();
+    else
+      diagonal = ::SMESH_Mesh::GetShapeDiagonalSize( shape );
+    ::SMESH_Hypothesis::TDefaults dflts;
+    dflts._elemLength = diagonal / myGen.GetBoundaryBoxSegmentation();
+    dflts._nbSegments = myGen.GetDefaultNbSegments();
+    // let the temporary hypothesis initialize it's values
+    if ( hyp->SetParametersByDefaults( dflts, mesh ))
+      return SMESH::SMESH_Hypothesis::_duplicate( tmpHyp );
+  }
+
+  return SMESH::SMESH_Hypothesis::_nil();
+}
+
+//=============================================================================
+/*!
+ * Sets number of segments per diagonal of boundary box of geometry by which
+ * default segment length of appropriate 1D hypotheses is defined
+ */
+//=============================================================================
+
+void SMESH_Gen_i::SetBoundaryBoxSegmentation( CORBA::Long theNbSegments )
+  throw ( SALOME::SALOME_Exception )
+{
+  if ( theNbSegments > 0 )
+    myGen.SetBoundaryBoxSegmentation( int( theNbSegments ));
+  else
+    THROW_SALOME_CORBA_EXCEPTION( "non-positive number of segments", SALOME::BAD_PARAM );
+}
+//=============================================================================
+  /*!
+   * \brief Sets default number of segments per edge
+   */
+//=============================================================================
+void SMESH_Gen_i::SetDefaultNbSegments(CORBA::Long theNbSegments)
+  throw ( SALOME::SALOME_Exception )
+{
+  if ( theNbSegments )
+    myGen.SetDefaultNbSegments( int(theNbSegments) );
+  else
+    THROW_SALOME_CORBA_EXCEPTION( "non-positive number of segments", SALOME::BAD_PARAM );
+}
+
 //=============================================================================
 /*!
  *  SMESH_Gen_i::CreateMesh
@@ -510,7 +789,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMesh( GEOM::GEOM_Object_ptr theShapeObj
   // create mesh
   SMESH::SMESH_Mesh_var mesh = this->createMesh();
   // set shape
-  SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( mesh ).in() );
+  SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( mesh );
   ASSERT( meshServant );
   meshServant->SetShape( theShapeObject );
 
@@ -522,11 +801,38 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMesh( GEOM::GEOM_Object_ptr theShapeObj
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
       // Update Python script
-      TCollection_AsciiString aStr (aSO->GetID());
-      aStr += " = smesh.CreateMesh(";
-      SMESH_Gen_i::AddObject(aStr, theShapeObject) += ")";
-      
-      AddToCurrentPyScript(aStr);
+      TPythonDump() << aSO << " = " << this << ".CreateMesh(" << theShapeObject << ")";
+    }
+  }
+
+  return mesh._retn();
+}
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::CreateEmptyMesh
+ *
+ *  Create empty mesh
+ */
+//=============================================================================
+
+SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateEmptyMesh()
+     throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::CreateMesh" );
+  // create mesh
+  SMESH::SMESH_Mesh_var mesh = this->createMesh();
+
+  // publish mesh in the study
+  if ( CanPublishInStudy( mesh ) ) {
+    SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
+    aStudyBuilder->NewCommand();  // There is a transaction
+    SALOMEDS::SObject_var aSO = PublishMesh( myCurrentStudy, mesh.in() );
+    aStudyBuilder->CommitCommand();
+    if ( !aSO->_is_nil() ) {
+      // Update Python script
+      TPythonDump() << aSO << " = " << this << ".CreateEmptyMesh()";
     }
   }
 
@@ -548,7 +854,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromUNV( const char* theFileName
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::CreateMeshesFromUNV" );
 
   SMESH::SMESH_Mesh_var aMesh = createMesh();
-  string aFileName; // = boost::filesystem::path(theFileName).leaf();
+  string aFileName;
   // publish mesh in the study
   if ( CanPublishInStudy( aMesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
@@ -557,18 +863,17 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromUNV( const char* theFileName
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
       // Update Python script
-      TCollection_AsciiString aStr (aSO->GetID());
-      aStr += " = smesh.CreateMeshesFromUNV(\"";
-      aStr += Standard_CString(theFileName);
-      aStr += "\")";
-
-      AddToCurrentPyScript(aStr);
+      TPythonDump() << aSO << " = smeshgen.CreateMeshesFromUNV('" << theFileName << "')";
     }
   }
 
   SMESH_Mesh_i* aServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( aMesh ).in() );
   ASSERT( aServant );
   aServant->ImportUNVFile( theFileName );
+
+  // Dump creation of groups
+  aServant->GetGroups();
+
   return aMesh._retn();
 }
 
@@ -587,9 +892,6 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMED( const char* theFileName,
   Unexpect aCatch(SALOME_SalomeException);
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::CreateMeshFromMED" );
 
-  // Python Dump
-  TCollection_AsciiString aStr ("([");
-
   // Retrieve mesh names from the file
   DriverMED_R_SMESHDS_Mesh myReader;
   myReader.SetFile( theFileName );
@@ -598,6 +900,14 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMED( const char* theFileName,
   list<string> aNames = myReader.GetMeshNames(aStatus);
   SMESH::mesh_array_var aResult = new SMESH::mesh_array();
   theStatus = (SMESH::DriverMED_ReadStatus)aStatus;
+
+  { // open a new scope to make aPythonDump die before PythonDump in SMESH_Mesh::GetGroups()
+
+  // Python Dump
+  TPythonDump aPythonDump;
+  aPythonDump << "([";
+  //TCollection_AsciiString aStr ("([");
+
   if (theStatus == SMESH::DRS_OK) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
     aStudyBuilder->NewCommand();  // There is a transaction
@@ -607,7 +917,8 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMED( const char* theFileName,
     // Iterate through all meshes and create mesh objects
     for ( list<string>::iterator it = aNames.begin(); it != aNames.end(); it++ ) {
       // Python Dump
-      if (i > 0) aStr += ", ";
+      //if (i > 0) aStr += ", ";
+      if (i > 0) aPythonDump << ", ";
 
       // create mesh
       SMESH::SMESH_Mesh_var mesh = createMesh();
@@ -618,20 +929,22 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMED( const char* theFileName,
         aSO = PublishMesh( myCurrentStudy, mesh.in(), (*it).c_str() );
       if ( !aSO->_is_nil() ) {
         // Python Dump
-        aStr += aSO->GetID();
+        aPythonDump << aSO;
+        //aStr += aSO->GetID();
       } else {
         // Python Dump
-        aStr += "mesh_";
-        aStr += TCollection_AsciiString(i);
+        aPythonDump << "mesh_" << i;
+//         aStr += "mesh_";
+//         aStr += TCollection_AsciiString(i);
       }
 
       // Read mesh data (groups are published automatically by ImportMEDFile())
       SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( mesh ).in() );
       ASSERT( meshServant );
       SMESH::DriverMED_ReadStatus status1 =
-       meshServant->ImportMEDFile( theFileName, (*it).c_str() );
+        meshServant->ImportMEDFile( theFileName, (*it).c_str() );
       if (status1 > theStatus)
-       theStatus = status1;
+        theStatus = status1;
 
       aResult[i++] = SMESH::SMESH_Mesh::_duplicate( mesh );
     }
@@ -639,11 +952,11 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMED( const char* theFileName,
   }
 
   // Update Python script
-  aStr += "], status) = smesh.CreateMeshesFromMED(\"";
-  aStr += Standard_CString(theFileName);
-  aStr += "\")";
-
-  AddToCurrentPyScript(aStr);
+  aPythonDump << "], status) = " << this << ".CreateMeshesFromMED('" << theFileName << "')";
+  }
+  // Dump creation of groups
+  for ( int i = 0; i < aResult->length(); ++i )
+    aResult[ i ]->GetGroups();
 
   return aResult._retn();
 }
@@ -663,7 +976,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromSTL( const char* theFileName
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::CreateMeshesFromSTL" );
 
   SMESH::SMESH_Mesh_var aMesh = createMesh();
-  string aFileName; // = boost::filesystem::path(theFileName).leaf();
+  string aFileName;
   // publish mesh in the study
   if ( CanPublishInStudy( aMesh ) ) {
     SALOMEDS::StudyBuilder_var aStudyBuilder = myCurrentStudy->NewBuilder();
@@ -672,13 +985,8 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromSTL( const char* theFileName
       ( myCurrentStudy, SALOMEDS::SObject::_nil(), aMesh.in(), aFileName.c_str() );
     aStudyBuilder->CommitCommand();
     if ( !aSO->_is_nil() ) {
-    // Update Python script
-      TCollection_AsciiString aStr (aSO->GetID());
-      aStr += " = smesh.CreateMeshesFromSTL(\"";
-      aStr += Standard_CString(theFileName);
-      aStr += "\")";
-
-      AddToCurrentPyScript(aStr);
+      // Update Python script
+      TPythonDump() << aSO << " = " << this << ".CreateMeshesFromSTL('" << theFileName << "')";
     }
   }
 
@@ -729,6 +1037,257 @@ CORBA::Boolean SMESH_Gen_i::IsReadyToCompute( SMESH::SMESH_Mesh_ptr theMesh,
   return false;
 }
 
+//================================================================================
+/*!
+ * \brief  Find SObject for an algo
+ */
+//================================================================================
+
+SALOMEDS::SObject_ptr SMESH_Gen_i::GetAlgoSO(const ::SMESH_Algo* algo)
+{
+  if ( algo ) {
+    if ( !myCurrentStudy->_is_nil() ) {
+      // find algo in the study
+      SALOMEDS::SComponent_var father = SALOMEDS::SComponent::_narrow
+        ( myCurrentStudy->FindComponent( ComponentDataType() ) );
+      if ( !father->_is_nil() ) {
+        SALOMEDS::ChildIterator_var itBig = myCurrentStudy->NewChildIterator( father );
+        for ( ; itBig->More(); itBig->Next() ) {
+          SALOMEDS::SObject_var gotBranch = itBig->Value();
+          if ( gotBranch->Tag() == GetAlgorithmsRootTag() ) {
+            SALOMEDS::ChildIterator_var algoIt = myCurrentStudy->NewChildIterator( gotBranch );
+            for ( ; algoIt->More(); algoIt->Next() ) {
+              SALOMEDS::SObject_var algoSO = algoIt->Value();
+              CORBA::Object_var     algoIOR = SObjectToObject( algoSO );
+              if ( !CORBA::is_nil( algoIOR )) {
+                SMESH_Hypothesis_i* impl = SMESH::DownCast<SMESH_Hypothesis_i*>( algoIOR );
+                if ( impl && impl->GetImpl() == algo )
+                  return algoSO._retn();
+              }
+            } // loop on algo SO's
+            break;
+          } // if algo tag
+        } // SMESH component iterator
+      }
+    }
+  }
+  return SALOMEDS::SObject::_nil();
+}
+
+//================================================================================
+/*!
+ * \brief Return errors of mesh computation
+ */
+//================================================================================
+
+SMESH::compute_error_array* SMESH_Gen_i::GetComputeErrors( SMESH::SMESH_Mesh_ptr theMesh, 
+                                                           GEOM::GEOM_Object_ptr theSubObject )
+  throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::GetComputeErrors()" );
+
+  if ( CORBA::is_nil( theSubObject ) && theMesh->HasShapeToMesh())
+    THROW_SALOME_CORBA_EXCEPTION( "bad shape object reference", SALOME::BAD_PARAM );
+
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference",SALOME::BAD_PARAM );
+
+  SMESH::compute_error_array_var error_array = new SMESH::compute_error_array;
+  try {
+    if ( SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( theMesh ))
+    {
+      TopoDS_Shape shape;
+      if(theMesh->HasShapeToMesh())
+        shape = GeomObjectToShape( theSubObject );
+      else
+        shape = SMESH_Mesh::PseudoShape();
+      
+      ::SMESH_Mesh& mesh = meshServant->GetImpl();
+
+      error_array->length( mesh.GetMeshDS()->MaxShapeIndex() );
+      int nbErr = 0;
+
+      SMESH_subMesh *sm = mesh.GetSubMesh(shape);
+      const bool includeSelf = true, complexShapeFirst = true;
+      SMESH_subMeshIteratorPtr smIt = sm->getDependsOnIterator(includeSelf,
+                                                               complexShapeFirst);
+      while ( smIt->more() )
+      {
+        sm = smIt->next();
+        if ( sm->GetSubShape().ShapeType() == TopAbs_VERTEX )
+          break;
+        SMESH_ComputeErrorPtr error = sm->GetComputeError();
+        if ( error && !error->IsOK() && error->myAlgo )
+        {
+          SMESH::ComputeError & errStruct = error_array[ nbErr++ ];
+          errStruct.code       = -( error->myName < 0 ? error->myName + 1: error->myName ); // -1 -> 0
+          errStruct.comment    = error->myComment.c_str();
+          errStruct.subShapeID = sm->GetId();
+          SALOMEDS::SObject_var algoSO = GetAlgoSO( error->myAlgo );
+          if ( !algoSO->_is_nil() )
+            errStruct.algoName = algoSO->GetName();
+          else
+            errStruct.algoName = error->myAlgo->GetName();
+          errStruct.hasBadMesh = !error->myBadElements.empty();
+        }
+      }
+      error_array->length( nbErr );
+    }
+  }
+  catch ( SALOME_Exception& S_ex ) {
+    INFOS( "catch exception "<< S_ex.what() );
+  }
+
+  return error_array._retn();
+}
+
+// 
+//================================================================================
+/*!
+ * \brief Return mesh elements preventing computation of a subshape
+ */
+//================================================================================
+
+SMESH::MeshPreviewStruct*
+SMESH_Gen_i::GetBadInputElements( SMESH::SMESH_Mesh_ptr theMesh,
+                                  CORBA::Short          theSubShapeID )
+  throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::GetBadInputElements()" );
+
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference",SALOME::BAD_PARAM );
+
+  SMESH::MeshPreviewStruct_var result = new SMESH::MeshPreviewStruct;
+  try {
+    // mesh servant
+    if ( SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( theMesh ))
+    {
+      // mesh implementation
+      ::SMESH_Mesh& mesh = meshServant->GetImpl();
+      // submesh by subshape id
+      if ( SMESH_subMesh * sm = mesh.GetSubMeshContaining( theSubShapeID ))
+      {
+        // compute error
+        SMESH_ComputeErrorPtr error = sm->GetComputeError();
+        if ( error && !error->myBadElements.empty())
+        {
+          typedef map<const SMDS_MeshElement*, int > TNode2LocalIDMap;
+          typedef TNode2LocalIDMap::iterator         TNodeLocalID;
+
+          // get nodes of elements and count elements
+          TNode2LocalIDMap mapNode2LocalID;
+          list< TNodeLocalID > connectivity;
+          int i, nbElements = 0, nbConnNodes = 0;
+
+          list<const SMDS_MeshElement*>::iterator elemIt  = error->myBadElements.begin();
+          list<const SMDS_MeshElement*>::iterator elemEnd = error->myBadElements.end();
+          for ( ; elemIt != elemEnd; ++elemIt, ++nbElements )
+          {
+            SMDS_ElemIteratorPtr nIt = (*elemIt)->nodesIterator();
+            while ( nIt->more() )
+              connectivity.push_back
+                ( mapNode2LocalID.insert( make_pair( nIt->next(), ++nbConnNodes)).first );
+          }
+          // fill node coords and assign local ids to the nodes
+          int nbNodes = mapNode2LocalID.size();
+          result->nodesXYZ.length( nbNodes );
+          TNodeLocalID node2ID = mapNode2LocalID.begin();
+          for ( i = 0; i < nbNodes; ++i, ++node2ID ) {
+            node2ID->second = i;
+            const SMDS_MeshNode* node = (const SMDS_MeshNode*) node2ID->first;
+            result->nodesXYZ[i].x = node->X();
+            result->nodesXYZ[i].y = node->Y();
+            result->nodesXYZ[i].z = node->Z();
+          }
+          // fill connectivity
+          result->elementConnectivities.length( nbConnNodes );
+          list< TNodeLocalID >::iterator connIt = connectivity.begin();
+          for ( i = 0; i < nbConnNodes; ++i, ++connIt ) {
+            result->elementConnectivities[i] = (*connIt)->second;
+          }
+          // fill element types
+          result->elementTypes.length( nbElements );
+          for ( i = 0, elemIt = error->myBadElements.begin(); i <nbElements; ++i, ++elemIt )
+          {
+            const SMDS_MeshElement* elem = *elemIt;
+            result->elementTypes[i].SMDS_ElementType = (SMESH::ElementType) elem->GetType();
+            result->elementTypes[i].isPoly           = elem->IsPoly();
+            result->elementTypes[i].nbNodesInElement = elem->NbNodes();
+          }
+        }
+      }
+    }
+  }
+  catch ( SALOME_Exception& S_ex ) {
+    INFOS( "catch exception "<< S_ex.what() );
+  }
+
+  return result._retn();
+}
+
+//================================================================================
+/*!
+ * \brief Returns errors of hypotheses definintion
+ * \param theMesh - the mesh
+ * \param theSubObject - the main or sub- shape
+ * \retval SMESH::algo_error_array* - sequence of errors
+ */
+//================================================================================
+
+SMESH::algo_error_array* SMESH_Gen_i::GetAlgoState( SMESH::SMESH_Mesh_ptr theMesh, 
+                                                    GEOM::GEOM_Object_ptr theSubObject )
+      throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::GetAlgoState()" );
+
+  if ( CORBA::is_nil( theSubObject ) && theMesh->HasShapeToMesh())
+    THROW_SALOME_CORBA_EXCEPTION( "bad shape object reference", SALOME::BAD_PARAM );
+
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference",SALOME::BAD_PARAM );
+
+  SMESH::algo_error_array_var error_array = new SMESH::algo_error_array;
+  try {
+    SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( theMesh );
+    ASSERT( meshServant );
+    if ( meshServant ) {
+      TopoDS_Shape myLocShape;
+      if(theMesh->HasShapeToMesh())
+        myLocShape = GeomObjectToShape( theSubObject );
+      else
+        myLocShape = SMESH_Mesh::PseudoShape();
+      
+      ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
+      list< ::SMESH_Gen::TAlgoStateError > error_list;
+      list< ::SMESH_Gen::TAlgoStateError >::iterator error;
+      // call ::SMESH_Gen::GetAlgoState()
+      myGen.GetAlgoState( myLocMesh, myLocShape, error_list );
+      error_array->length( error_list.size() );
+      int i = 0;
+      for ( error = error_list.begin(); error != error_list.end(); ++error )
+      {
+        // fill AlgoStateError structure
+        SMESH::AlgoStateError & errStruct = error_array[ i++ ];
+        errStruct.state        = SMESH_Mesh_i::ConvertHypothesisStatus( error->_name );
+        errStruct.algoDim      = error->_algoDim;
+        errStruct.isGlobalAlgo = error->_isGlobalAlgo;
+        errStruct.algoName     = "";
+        SALOMEDS::SObject_var algoSO = GetAlgoSO( error->_algo );
+        if ( !algoSO->_is_nil() )
+          errStruct.algoName   = algoSO->GetName();
+      }
+    }
+  }
+  catch ( SALOME_Exception& S_ex ) {
+    INFOS( "catch exception "<< S_ex.what() );
+  }
+  return error_array._retn();
+}
+
 //=============================================================================
 /*!
  *  SMESH_Gen_i::GetSubShapesId
@@ -738,7 +1297,7 @@ CORBA::Boolean SMESH_Gen_i::IsReadyToCompute( SMESH::SMESH_Mesh_ptr theMesh,
 //=============================================================================
 
 SMESH::long_array* SMESH_Gen_i::GetSubShapesId( GEOM::GEOM_Object_ptr theMainShapeObject,
-                                           const SMESH::object_array& theListOfSubShapeObject )
+                                            const SMESH::object_array& theListOfSubShapeObject )
      throw ( SALOME::SALOME_Exception )
 {
   Unexpect aCatch(SALOME_SalomeException);
@@ -758,43 +1317,43 @@ SMESH::long_array* SMESH_Gen_i::GetSubShapesId( GEOM::GEOM_Object_ptr theMainSha
       TopExp::MapShapes(myMainShape,myIndexToShape);
 
       for ( int i = 0; i < theListOfSubShapeObject.length(); i++ )
-       {
-         GEOM::GEOM_Object_var aShapeObject
-           = GEOM::GEOM_Object::_narrow(theListOfSubShapeObject[i]);
-         if ( CORBA::is_nil( aShapeObject ) )
-           THROW_SALOME_CORBA_EXCEPTION ("bad shape object reference", \
-                                       SALOME::BAD_PARAM );
-
-         TopoDS_Shape locShape  = GeomObjectToShape(aShapeObject);
-         for (TopExp_Explorer exp(locShape,TopAbs_FACE); exp.More(); exp.Next())
-           {
-             const TopoDS_Face& F = TopoDS::Face(exp.Current());
-             setId.insert(myIndexToShape.FindIndex(F));
-             if(MYDEBUG) SCRUTE(myIndexToShape.FindIndex(F));
-           }
-         for (TopExp_Explorer exp(locShape,TopAbs_EDGE); exp.More(); exp.Next())
-           {
-             const TopoDS_Edge& E = TopoDS::Edge(exp.Current());
-             setId.insert(myIndexToShape.FindIndex(E));
-             if(MYDEBUG) SCRUTE(myIndexToShape.FindIndex(E));
-           }
-         for (TopExp_Explorer exp(locShape,TopAbs_VERTEX); exp.More(); exp.Next())
-           {
-             const TopoDS_Vertex& V = TopoDS::Vertex(exp.Current());
-             setId.insert(myIndexToShape.FindIndex(V));
-             if(MYDEBUG) SCRUTE(myIndexToShape.FindIndex(V));
-           }
-       }
+        {
+          GEOM::GEOM_Object_var aShapeObject
+            = GEOM::GEOM_Object::_narrow(theListOfSubShapeObject[i]);
+          if ( CORBA::is_nil( aShapeObject ) )
+            THROW_SALOME_CORBA_EXCEPTION ("bad shape object reference", \
+                                        SALOME::BAD_PARAM );
+
+          TopoDS_Shape locShape  = GeomObjectToShape(aShapeObject);
+          for (TopExp_Explorer exp(locShape,TopAbs_FACE); exp.More(); exp.Next())
+            {
+              const TopoDS_Face& F = TopoDS::Face(exp.Current());
+              setId.insert(myIndexToShape.FindIndex(F));
+              if(MYDEBUG) SCRUTE(myIndexToShape.FindIndex(F));
+            }
+          for (TopExp_Explorer exp(locShape,TopAbs_EDGE); exp.More(); exp.Next())
+            {
+              const TopoDS_Edge& E = TopoDS::Edge(exp.Current());
+              setId.insert(myIndexToShape.FindIndex(E));
+              if(MYDEBUG) SCRUTE(myIndexToShape.FindIndex(E));
+            }
+          for (TopExp_Explorer exp(locShape,TopAbs_VERTEX); exp.More(); exp.Next())
+            {
+              const TopoDS_Vertex& V = TopoDS::Vertex(exp.Current());
+              setId.insert(myIndexToShape.FindIndex(V));
+              if(MYDEBUG) SCRUTE(myIndexToShape.FindIndex(V));
+            }
+        }
       shapesId->length(setId.size());
       set<int>::iterator iind;
       int i=0;
       for (iind = setId.begin(); iind != setId.end(); iind++)
-       {
-         if(MYDEBUG) SCRUTE((*iind));
-         shapesId[i] = (*iind);
-         if(MYDEBUG) SCRUTE(shapesId[i]);
-         i++;
-       }
+        {
+          if(MYDEBUG) SCRUTE((*iind));
+          shapesId[i] = (*iind);
+          if(MYDEBUG) SCRUTE(shapesId[i]);
+          i++;
+        }
     }
   catch (SALOME_Exception& S_ex)
     {
@@ -819,7 +1378,7 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
   Unexpect aCatch(SALOME_SalomeException);
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::Compute" );
 
-  if ( CORBA::is_nil( theShapeObject ) )
+  if ( CORBA::is_nil( theShapeObject ) && theMesh->HasShapeToMesh())
     THROW_SALOME_CORBA_EXCEPTION( "bad shape object reference", 
                                   SALOME::BAD_PARAM );
 
@@ -828,28 +1387,30 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
                                   SALOME::BAD_PARAM );
 
   // Update Python script
-  TCollection_AsciiString aStr ("isDone = smesh.Compute(");
-  SMESH_Gen_i::AddObject(aStr, theMesh) += ", ";
-  SMESH_Gen_i::AddObject(aStr, theShapeObject) += ")";
-
-  AddToCurrentPyScript(aStr);
-
-  aStr = "if isDone == 0: print \"Mesh ";
-  SMESH_Gen_i::AddObject(aStr, theMesh) += " computation failed\"";
-  AddToCurrentPyScript(aStr);
+  TPythonDump() << "isDone = " << this << ".Compute( "
+                << theMesh << ", " << theShapeObject << ")";
 
   try {
     // get mesh servant
     SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( theMesh ).in() );
     ASSERT( meshServant );
     if ( meshServant ) {
+      // NPAL16168: "geometrical group edition from a submesh don't modifiy mesh computation"
+      meshServant->CheckGeomGroupModif();
       // get local TopoDS_Shape
-      TopoDS_Shape myLocShape = GeomObjectToShape( theShapeObject );
+      TopoDS_Shape myLocShape;
+      if(theMesh->HasShapeToMesh())
+        myLocShape = GeomObjectToShape( theShapeObject );
+      else
+        myLocShape = SMESH_Mesh::PseudoShape();
       // call implementation compute
       ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
       return myGen.Compute( myLocMesh, myLocShape);
     }
   }
+  catch ( std::bad_alloc ) {
+    INFOS( "Compute(): lack of memory" );
+  }
   catch ( SALOME_Exception& S_ex ) {
     INFOS( "Compute(): catch exception "<< S_ex.what() );
   }
@@ -861,32 +1422,781 @@ CORBA::Boolean SMESH_Gen_i::Compute( SMESH::SMESH_Mesh_ptr theMesh,
 
 //=============================================================================
 /*!
- *  SMESH_Gen_i::Save
+ *  SMESH_Gen_i::Precompute
  *
- *  Save SMESH module's data
+ *  Compute mesh as preview till indicated dimension on shape
  */
 //=============================================================================
-SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
-                                     const char*              theURL,
-                                     bool                     isMultiFile )
+
+SMESH::MeshPreviewStruct* SMESH_Gen_i::Precompute( SMESH::SMESH_Mesh_ptr theMesh,
+                                                   GEOM::GEOM_Object_ptr theShapeObject,
+                                                   SMESH::Dimension      theDimension,
+                                                   SMESH::long_array&    theShapesId)
+     throw ( SALOME::SALOME_Exception )
 {
-  INFOS( "SMESH_Gen_i::Save" );
+  Unexpect aCatch(SALOME_SalomeException);
+  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::Precompute" );
 
-//  ASSERT( theComponent->GetStudy()->StudyId() == myCurrentStudy->StudyId() )
+  if ( CORBA::is_nil( theShapeObject ) && theMesh->HasShapeToMesh())
+    THROW_SALOME_CORBA_EXCEPTION( "bad shape object reference", 
+                                  SALOME::BAD_PARAM );
+
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference",
+                                  SALOME::BAD_PARAM );
+
+  SMESH::MeshPreviewStruct_var result = new SMESH::MeshPreviewStruct;
+  try {
+    // get mesh servant
+    SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( theMesh ).in() );
+    ASSERT( meshServant );
+    if ( meshServant ) {
+      // NPAL16168: "geometrical group edition from a submesh don't modifiy mesh computation"
+      meshServant->CheckGeomGroupModif();
+      // get local TopoDS_Shape
+      TopoDS_Shape myLocShape;
+      if(theMesh->HasShapeToMesh())
+        myLocShape = GeomObjectToShape( theShapeObject );
+      else
+        return result._retn();;
+
+      // call implementation compute
+      ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
+      TSetOfInt shapeIds;
+      ::MeshDimension aDim = (MeshDimension)theDimension;
+      if ( myGen.Compute( myLocMesh, myLocShape, false, aDim, &shapeIds ) )
+      {
+        int nbShapeId = shapeIds.size();
+        theShapesId.length( nbShapeId );
+        // iterates on shapes and collect mesh entities into mesh preview
+        TSetOfInt::const_iterator idIt = shapeIds.begin();
+        TSetOfInt::const_iterator idEnd = shapeIds.end();
+        std::map< int, int > mapOfShIdNb;
+        std::set< SMESH_TLink > setOfEdge;
+        std::list< SMDSAbs_ElementType > listOfElemType;
+        typedef map<const SMDS_MeshElement*, int > TNode2LocalIDMap;
+        typedef TNode2LocalIDMap::iterator         TNodeLocalID;
+        TNode2LocalIDMap mapNode2LocalID;
+        list< TNodeLocalID > connectivity;
+        int i, nbConnNodes = 0;
+        std::set< const SMESH_subMesh* > setOfVSubMesh;
+        // iterates on shapes
+        for ( ; idIt != idEnd; idIt++ )
+        {
+          if ( mapOfShIdNb.find( *idIt ) != mapOfShIdNb.end() )
+            continue;
+          SMESH_subMesh* sm = myLocMesh.GetSubMeshContaining(*idIt);
+          if ( !sm || !sm->IsMeshComputed() )
+            continue;
+          
+          const TopoDS_Shape& aSh = sm->GetSubShape();
+          const int shDim = myGen.GetShapeDim( aSh );
+          if ( shDim < 1 || shDim > theDimension )
+            continue;
+
+          mapOfShIdNb[ *idIt ] = 0;
+          theShapesId[ mapOfShIdNb.size() - 1 ] = *idIt;
+
+          SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
+          if ( !smDS ) continue;
+
+          if ( theDimension == SMESH::DIM_2D )
+          {
+            SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
+            while ( faceIt->more() )
+            {
+              const SMDS_MeshElement* face = faceIt->next();
+              int aNbNode = face->NbNodes();
+              if ( aNbNode > 4 )
+                aNbNode /= 2; // do not take into account additional middle nodes
+
+              SMDS_MeshNode* node1 = (SMDS_MeshNode*)face->GetNode( 0 );
+              for ( int nIndx = 0; nIndx < aNbNode; nIndx++ )
+              {
+                SMDS_MeshNode* node2 = (SMDS_MeshNode*)face->GetNode( nIndx+1 < aNbNode ? nIndx+1 : 0 );
+                if ( setOfEdge.insert( SMESH_TLink ( node1, node2 ) ).second )
+                {
+                  listOfElemType.push_back( SMDSAbs_Edge );
+                  connectivity.push_back
+                    ( mapNode2LocalID.insert( make_pair( node1, ++nbConnNodes)).first );
+                  connectivity.push_back
+                    ( mapNode2LocalID.insert( make_pair( node2, ++nbConnNodes)).first );
+                }
+                node1 = node2;
+              }
+            }
+          }
+          else if ( theDimension == SMESH::DIM_1D )
+          {
+            SMDS_NodeIteratorPtr nodeIt = smDS->GetNodes();
+            while ( nodeIt->more() )
+            {
+              listOfElemType.push_back( SMDSAbs_Node );
+              connectivity.push_back
+                ( mapNode2LocalID.insert( make_pair( nodeIt->next(), ++nbConnNodes)).first );
+            }
+            // add corner nodes by first vertex from edge
+            SMESH_subMeshIteratorPtr edgeSmIt =
+              sm->getDependsOnIterator(/*includeSelf*/false,
+                                       /*complexShapeFirst*/false);
+            while ( edgeSmIt->more() )
+            {
+              SMESH_subMesh* vertexSM = edgeSmIt->next();
+              // check that vertex is not already treated
+              if ( !setOfVSubMesh.insert( vertexSM ).second )
+                continue;
+              if ( vertexSM->GetSubShape().ShapeType() != TopAbs_VERTEX )
+                continue;
+
+              const SMESHDS_SubMesh* vertexSmDS = vertexSM->GetSubMeshDS();
+              SMDS_NodeIteratorPtr nodeIt = vertexSmDS->GetNodes();
+              while ( nodeIt->more() )
+              {
+                listOfElemType.push_back( SMDSAbs_Node );
+                connectivity.push_back
+                  ( mapNode2LocalID.insert( make_pair( nodeIt->next(), ++nbConnNodes)).first );
+              }
+            }
+          }
+        }
+
+        // fill node coords and assign local ids to the nodes
+        int nbNodes = mapNode2LocalID.size();
+        result->nodesXYZ.length( nbNodes );
+        TNodeLocalID node2ID = mapNode2LocalID.begin();
+        for ( i = 0; i < nbNodes; ++i, ++node2ID ) {
+          node2ID->second = i;
+          const SMDS_MeshNode* node = (const SMDS_MeshNode*) node2ID->first;
+          result->nodesXYZ[i].x = node->X();
+          result->nodesXYZ[i].y = node->Y();
+          result->nodesXYZ[i].z = node->Z();
+        }
+        // fill connectivity
+        result->elementConnectivities.length( nbConnNodes );
+        list< TNodeLocalID >::iterator connIt = connectivity.begin();
+        for ( i = 0; i < nbConnNodes; ++i, ++connIt ) {
+          result->elementConnectivities[i] = (*connIt)->second;
+        }
+
+        // fill element types
+        result->elementTypes.length( listOfElemType.size() );
+        std::list< SMDSAbs_ElementType >::const_iterator typeIt = listOfElemType.begin();
+        std::list< SMDSAbs_ElementType >::const_iterator typeEnd = listOfElemType.end();
+        for ( i = 0; typeIt != typeEnd; ++i, ++typeIt )
+        {
+          SMDSAbs_ElementType elemType = *typeIt;
+          result->elementTypes[i].SMDS_ElementType = (SMESH::ElementType)elemType;
+          result->elementTypes[i].isPoly           = false;
+          result->elementTypes[i].nbNodesInElement = elemType == SMDSAbs_Edge ? 2 : 1;
+        }
+
+        // correct number of shapes
+        theShapesId.length( mapOfShIdNb.size() );
+      }
+    }
+  }
+  catch ( std::bad_alloc ) {
+    INFOS( "Precompute(): lack of memory" );
+  }
+  catch ( SALOME_Exception& S_ex ) {
+    INFOS( "Precompute(): catch exception "<< S_ex.what() );
+  }
+  catch ( ... ) {
+    INFOS( "Precompute(): unknown exception " );
+  }
+  return result._retn();
+}
+
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::Evaluate
+ *
+ *  Evaluate mesh on a shape
+ */
+//=============================================================================
+
+SMESH::long_array* SMESH_Gen_i::Evaluate(SMESH::SMESH_Mesh_ptr theMesh,
+                                         GEOM::GEOM_Object_ptr theShapeObject)
+//                                     SMESH::long_array& theNbElems)
+     throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if(MYDEBUG) MESSAGE( "SMESH_Gen_i::Evaluate" );
+
+  if ( CORBA::is_nil( theShapeObject ) && theMesh->HasShapeToMesh())
+    THROW_SALOME_CORBA_EXCEPTION( "bad shape object reference", 
+                                  SALOME::BAD_PARAM );
+
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference",
+                                  SALOME::BAD_PARAM );
+
+  SMESH::long_array_var nbels = new SMESH::long_array;
+  nbels->length(SMESH::Entity_Last);
+  int i = SMESH::Entity_Node;
+  for (; i < SMESH::Entity_Last; i++)
+    nbels[i] = 0;
+
+  // Update Python script
+  TPythonDump() << "theNbElems = " << this << ".Evaluate( "
+                << theMesh << ", " << theShapeObject << ")";
+
+  try {
+    // get mesh servant
+    SMESH_Mesh_i* meshServant = dynamic_cast<SMESH_Mesh_i*>( GetServant( theMesh ).in() );
+    ASSERT( meshServant );
+    if ( meshServant ) {
+      // NPAL16168: "geometrical group edition from a submesh don't modifiy mesh computation"
+      meshServant->CheckGeomGroupModif();
+      // get local TopoDS_Shape
+      TopoDS_Shape myLocShape;
+      if(theMesh->HasShapeToMesh())
+        myLocShape = GeomObjectToShape( theShapeObject );
+      else
+        myLocShape = SMESH_Mesh::PseudoShape();
+      // call implementation compute
+      ::SMESH_Mesh& myLocMesh = meshServant->GetImpl();
+      MapShapeNbElems aResMap;
+      /*CORBA::Boolean ret =*/ myGen.Evaluate( myLocMesh, myLocShape, aResMap);
+      MapShapeNbElemsItr anIt = aResMap.begin();
+      for(; anIt!=aResMap.end(); anIt++) {
+        const vector<int>& aVec = (*anIt).second;
+        for(i = SMESH::Entity_Node; i < SMESH::Entity_Last; i++) {
+          nbels[i] += aVec[i];
+        }
+      }
+#ifdef _DEBUG_
+      cout<<endl;
+#endif
+      return nbels._retn();
+    }
+  }
+  catch ( std::bad_alloc ) {
+    INFOS( "Evaluate(): lack of memory" );
+  }
+  catch ( SALOME_Exception& S_ex ) {
+    INFOS( "Evaluate(): catch exception "<< S_ex.what() );
+  }
+  catch ( ... ) {
+    INFOS( "Evaluate(): unknown exception " );
+  }
+
+  return nbels._retn();
+}
+
+//================================================================================
+/*!
+ * \brief Return geometrical object the given element is built on
+ *  \param theMesh - the mesh the element is in
+ *  \param theElementID - the element ID
+ *  \param theGeomName - the name of the result geom object if it is not yet published
+ *  \retval GEOM::GEOM_Object_ptr - the found or just published geom object
+ */
+//================================================================================
+
+GEOM::GEOM_Object_ptr
+SMESH_Gen_i::GetGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
+                                       CORBA::Long            theElementID,
+                                       const char*            theGeomName)
+  throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  GEOM::GEOM_Object_var geom = FindGeometryByMeshElement(theMesh, theElementID);
+  if ( !geom->_is_nil() ) {
+    GEOM::GEOM_Object_var mainShape = theMesh->GetShapeToMesh();
+    GEOM::GEOM_Gen_ptr    geomGen   = GetGeomEngine();
+
+    // try to find the corresponding SObject
+    SALOMEDS::SObject_var SObj = ObjectToSObject( myCurrentStudy, geom.in() );
+    if ( SObj->_is_nil() ) // submesh can be not found even if published
+    {
+      // try to find published submesh
+      GEOM::ListOfLong_var list = geom->GetSubShapeIndices();
+      if ( !geom->IsMainShape() && list->length() == 1 ) {
+        SALOMEDS::SObject_var mainSO = ObjectToSObject( myCurrentStudy, mainShape );
+        SALOMEDS::ChildIterator_var it;
+        if ( !mainSO->_is_nil() )
+          it = myCurrentStudy->NewChildIterator( mainSO );
+        if ( !it->_is_nil() ) {
+          for ( it->InitEx(true); SObj->_is_nil() && it->More(); it->Next() ) {
+            GEOM::GEOM_Object_var subGeom =
+              GEOM::GEOM_Object::_narrow( SObjectToObject( it->Value() ));
+            if ( !subGeom->_is_nil() ) {
+              GEOM::ListOfLong_var subList = subGeom->GetSubShapeIndices();
+              if ( subList->length() == 1 && list[0] == subList[0] ) {
+                SObj = it->Value();
+                geom = subGeom;
+              }
+            }
+          }
+        }
+      }
+    }
+    if ( SObj->_is_nil() ) // publish a new subshape
+      SObj = geomGen->AddInStudy( myCurrentStudy, geom, theGeomName, mainShape );
+
+    // return only published geometry
+    if ( !SObj->_is_nil() )
+      return geom._retn();
+  }
+  return GEOM::GEOM_Object::_nil();
+}
+
+//================================================================================
+/*!
+ * \brief Return geometrical object the given element is built on.
+ *  \param theMesh - the mesh the element is in
+ *  \param theElementID - the element ID
+ *  \retval GEOM::GEOM_Object_ptr - the found geom object
+ */
+//================================================================================
+
+GEOM::GEOM_Object_ptr
+SMESH_Gen_i::FindGeometryByMeshElement( SMESH::SMESH_Mesh_ptr  theMesh,
+                                        CORBA::Long            theElementID)
+  throw ( SALOME::SALOME_Exception )
+{
+  Unexpect aCatch(SALOME_SalomeException);
+  if ( CORBA::is_nil( theMesh ) )
+    THROW_SALOME_CORBA_EXCEPTION( "bad Mesh reference", SALOME::BAD_PARAM );
+
+  GEOM::GEOM_Object_var mainShape = theMesh->GetShapeToMesh();
+  GEOM::GEOM_Gen_ptr    geomGen   = GetGeomEngine();
+
+  // get a core mesh DS
+  SMESH_Mesh_i* meshServant = SMESH::DownCast<SMESH_Mesh_i*>( theMesh );
+  if ( meshServant && !geomGen->_is_nil() && !mainShape->_is_nil() )
+  {
+    ::SMESH_Mesh & mesh = meshServant->GetImpl();
+    SMESHDS_Mesh* meshDS = mesh.GetMeshDS();
+    // find the element in mesh
+    if ( const SMDS_MeshElement * elem = meshDS->FindElement( theElementID ) ) {
+      // find a shape id by the element
+      if ( int shapeID = ::SMESH_MeshEditor( &mesh ).FindShape( elem )) {
+        // get a geom object by the shape id
+        GEOM::GEOM_Object_var geom = ShapeToGeomObject( meshDS->IndexToShape( shapeID ));
+        if ( geom->_is_nil() ) {
+          // try to find a published sub-shape
+          SALOMEDS::SObject_var mainSO = ObjectToSObject( myCurrentStudy, mainShape );
+          SALOMEDS::ChildIterator_var it;
+          if ( !mainSO->_is_nil() )
+            it = myCurrentStudy->NewChildIterator( mainSO );
+          if ( !it->_is_nil() ) {
+            for ( it->InitEx(true); it->More(); it->Next() ) {
+              GEOM::GEOM_Object_var subGeom =
+                GEOM::GEOM_Object::_narrow( SObjectToObject( it->Value() ));
+              if ( !subGeom->_is_nil() ) {
+                GEOM::ListOfLong_var subList = subGeom->GetSubShapeIndices();
+                if ( subList->length() == 1 && shapeID == subList[0] ) {
+                  geom = subGeom;
+                  break;
+                }
+              }
+            }
+          }
+        }
+        if ( geom->_is_nil() ) {
+          // explode
+          GEOM::GEOM_IShapesOperations_var op =
+            geomGen->GetIShapesOperations( GetCurrentStudyID() );
+          if ( !op->_is_nil() )
+            geom = op->GetSubShape( mainShape, shapeID );
+        }
+        if ( !geom->_is_nil() ) {
+          GeomObjectToShape( geom ); // let geom client remember the found shape
+          return geom._retn();
+        }
+      }
+    }
+  }
+  return GEOM::GEOM_Object::_nil();
+}
+
+//================================================================================
+/*!
+ *  SMESH_Gen_i::Concatenate
+ *
+ *  Concatenate the given meshes into one mesh
+ */
+//================================================================================
+
+SMESH::SMESH_Mesh_ptr SMESH_Gen_i::Concatenate(const SMESH::mesh_array& theMeshesArray,
+                                               CORBA::Boolean           theUniteIdenticalGroups, 
+                                               CORBA::Boolean           theMergeNodesAndElements, 
+                                               CORBA::Double            theMergeTolerance)
+  throw ( SALOME::SALOME_Exception )
+{
+  return ConcatenateCommon(theMeshesArray,
+                           theUniteIdenticalGroups,
+                           theMergeNodesAndElements,
+                           theMergeTolerance,
+                           false);
+}
+
+//================================================================================
+/*!
+ *  SMESH_Gen_i::ConcatenateWithGroups
+ *
+ *  Concatenate the given meshes into one mesh
+ *  Create the groups of all elements from initial meshes
+ */
+//================================================================================
+
+SMESH::SMESH_Mesh_ptr
+SMESH_Gen_i::ConcatenateWithGroups(const SMESH::mesh_array& theMeshesArray,
+                                   CORBA::Boolean           theUniteIdenticalGroups, 
+                                   CORBA::Boolean           theMergeNodesAndElements, 
+                                   CORBA::Double            theMergeTolerance)
+  throw ( SALOME::SALOME_Exception )
+{
+  return ConcatenateCommon(theMeshesArray,
+                           theUniteIdenticalGroups,
+                           theMergeNodesAndElements,
+                           theMergeTolerance,
+                           true);
+}
+
+//================================================================================
+/*!
+ *  SMESH_Gen_i::ConcatenateCommon
+ *
+ *  Concatenate the given meshes into one mesh
+ */
+//================================================================================
+
+SMESH::SMESH_Mesh_ptr
+SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
+                               CORBA::Boolean           theUniteIdenticalGroups, 
+                               CORBA::Boolean           theMergeNodesAndElements, 
+                               CORBA::Double            theMergeTolerance,
+                               CORBA::Boolean           theCommonGroups)
+  throw ( SALOME::SALOME_Exception )
+{
+  typedef map<int, int> TIDsMap;
+  typedef list<SMESH::SMESH_Group_var> TListOfNewGroups;
+  typedef map< pair<string, SMESH::ElementType>, TListOfNewGroups > TGroupsMap;
+  typedef std::set<SMESHDS_GroupBase*> TGroups;
+
+  TPythonDump* pPythonDump = new TPythonDump;
+  TPythonDump& aPythonDump = *pPythonDump; // prevent dump of called methods
+
+  // create mesh
+  SMESH::SMESH_Mesh_var aNewMesh = CreateEmptyMesh();
+  
+  if ( !aNewMesh->_is_nil() ) {
+    SMESH_Mesh_i* aNewImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( aNewMesh ).in() );
+    if ( aNewImpl ) {
+      ::SMESH_Mesh& aLocMesh = aNewImpl->GetImpl();
+      SMESHDS_Mesh* aNewMeshDS = aLocMesh.GetMeshDS();
+
+      TGroupsMap aGroupsMap;
+      TListOfNewGroups aListOfNewGroups;
+      SMESH_MeshEditor aNewEditor = ::SMESH_MeshEditor(&aLocMesh);
+      SMESH::ListOfGroups_var aListOfGroups = new SMESH::ListOfGroups();
+
+      // loop on meshes
+      for ( int i = 0; i < theMeshesArray.length(); i++) {
+        SMESH::SMESH_Mesh_var anInitMesh = theMeshesArray[i];
+        if ( !anInitMesh->_is_nil() ) {
+          SMESH_Mesh_i* anInitImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( anInitMesh ).in() );
+          if ( anInitImpl ) {
+            ::SMESH_Mesh& aInitLocMesh = anInitImpl->GetImpl();
+            SMESHDS_Mesh* anInitMeshDS = aInitLocMesh.GetMeshDS();
+
+            TIDsMap nodesMap;
+            TIDsMap elemsMap;
+
+            // loop on elements of mesh
+            SMDS_ElemIteratorPtr itElems = anInitMeshDS->elementsIterator();
+            const SMDS_MeshElement* anElem = 0;
+            const SMDS_MeshElement* aNewElem = 0;
+            int anElemNbNodes = 0;
+
+            int anNbNodes   = 0;
+            int anNbEdges   = 0;
+            int anNbFaces   = 0;
+            int anNbVolumes = 0;
+
+            SMESH::long_array_var anIDsNodes   = new SMESH::long_array();
+            SMESH::long_array_var anIDsEdges   = new SMESH::long_array();
+            SMESH::long_array_var anIDsFaces   = new SMESH::long_array();
+            SMESH::long_array_var anIDsVolumes = new SMESH::long_array();
+
+            if( theCommonGroups ) {
+              anIDsNodes->length(   anInitMeshDS->NbNodes()   );
+              anIDsEdges->length(   anInitMeshDS->NbEdges()   );
+              anIDsFaces->length(   anInitMeshDS->NbFaces()   );
+              anIDsVolumes->length( anInitMeshDS->NbVolumes() );
+            }
+
+            for ( int j = 0; itElems->more(); j++) {
+              anElem = itElems->next();
+              SMDSAbs_ElementType anElemType = anElem->GetType();
+              anElemNbNodes = anElem->NbNodes();
+              std::vector<const SMDS_MeshNode*> aNodesArray (anElemNbNodes);
+
+              // loop on nodes of element
+              const SMDS_MeshNode* aNode = 0;
+              const SMDS_MeshNode* aNewNode = 0;
+              SMDS_ElemIteratorPtr itNodes = anElem->nodesIterator();
+
+              for ( int k = 0; itNodes->more(); k++) {
+                aNode = static_cast<const SMDS_MeshNode*>(itNodes->next());
+                if ( nodesMap.find(aNode->GetID()) == nodesMap.end() ) {
+                  aNewNode = aNewMeshDS->AddNode(aNode->X(), aNode->Y(), aNode->Z());
+                  nodesMap.insert( make_pair(aNode->GetID(), aNewNode->GetID()) );
+                  if( theCommonGroups )
+                    anIDsNodes[anNbNodes++] = aNewNode->GetID();
+                }
+                else
+                  aNewNode = aNewMeshDS->FindNode( nodesMap.find(aNode->GetID())->second );
+                aNodesArray[k] = aNewNode;
+              }//nodes loop
+
+              // creates a corresponding element on existent nodes in new mesh
+              if ( anElem->IsPoly() && anElemType == SMDSAbs_Volume )
+                {
+                  const SMDS_PolyhedralVolumeOfNodes* aVolume =
+                    dynamic_cast<const SMDS_PolyhedralVolumeOfNodes*> (anElem);
+                  if ( aVolume ) {
+                    aNewElem = aNewMeshDS->AddPolyhedralVolume(aNodesArray, 
+                                                               aVolume->GetQuanities());
+                    elemsMap.insert(make_pair(anElem->GetID(), aNewElem->GetID()));
+                    if( theCommonGroups )
+                      anIDsVolumes[anNbVolumes++] = aNewElem->GetID();
+                  }
+                }
+              else {
+                
+                aNewElem = aNewEditor.AddElement(aNodesArray,
+                                                 anElemType,
+                                                 anElem->IsPoly());
+                elemsMap.insert(make_pair(anElem->GetID(), aNewElem->GetID()));
+                if( theCommonGroups ) {
+                  if( anElemType == SMDSAbs_Edge )
+                    anIDsEdges[anNbEdges++] = aNewElem->GetID();
+                  else if( anElemType == SMDSAbs_Face )
+                    anIDsFaces[anNbFaces++] = aNewElem->GetID();
+                  else if( anElemType == SMDSAbs_Volume )
+                    anIDsVolumes[anNbVolumes++] = aNewElem->GetID();
+                }
+              } 
+            }//elems loop
+            
+            aListOfGroups = anInitImpl->GetGroups();
+            SMESH::SMESH_GroupBase_ptr aGroup;
+
+            // loop on groups of mesh
+            SMESH::long_array_var anInitIDs = new SMESH::long_array();
+            SMESH::long_array_var anNewIDs = new SMESH::long_array();
+            SMESH::SMESH_Group_var aNewGroup;
+
+            SMESH::ElementType aGroupType;
+            CORBA::String_var aGroupName;
+            if ( theCommonGroups ) {
+              for(aGroupType=SMESH::NODE;aGroupType<=SMESH::VOLUME;aGroupType=(SMESH::ElementType)(aGroupType+1)) {
+                string str = "Gr";
+                SALOMEDS::SObject_var aMeshSObj = ObjectToSObject( myCurrentStudy, anInitMesh );
+                if(aMeshSObj)
+                  str += aMeshSObj->GetName();
+                str += "_";
+
+                int anLen = 0;
+
+                switch(aGroupType) {
+                case SMESH::NODE:
+                  str += "Nodes";
+                  anIDsNodes->length(anNbNodes);
+                  anLen = anNbNodes;
+                  break;
+                case SMESH::EDGE:
+                  str += "Edges";
+                  anIDsEdges->length(anNbEdges);
+                  anLen = anNbEdges;
+                  break;
+                case SMESH::FACE:
+                  str += "Faces";
+                  anIDsFaces->length(anNbFaces);
+                  anLen = anNbFaces;
+                  break;
+                case SMESH::VOLUME:
+                  str += "Volumes";
+                  anIDsVolumes->length(anNbVolumes);
+                  anLen = anNbVolumes;
+                  break;
+                default:
+                  break;
+                }
+
+                if(anLen) {
+                  aGroupName = str.c_str();
+
+                  // add a new group in the mesh
+                  aNewGroup = aNewImpl->CreateGroup(aGroupType, aGroupName);
+
+                  switch(aGroupType) {
+                  case SMESH::NODE:
+                    aNewGroup->Add( anIDsNodes );
+                    break;
+                  case SMESH::EDGE:
+                    aNewGroup->Add( anIDsEdges );
+                    break;
+                  case SMESH::FACE:
+                    aNewGroup->Add( anIDsFaces );
+                    break;
+                  case SMESH::VOLUME:
+                    aNewGroup->Add( anIDsVolumes );
+                    break;
+                  default:
+                    break;
+                  }
+                
+                  aListOfNewGroups.clear();
+                  aListOfNewGroups.push_back(aNewGroup);
+                  aGroupsMap.insert(make_pair( make_pair(aGroupName, aGroupType), aListOfNewGroups ));
+                }
+              }
+            }
+
+            // check that current group name and type don't have identical ones in union mesh
+            for (int i = 0; i < aListOfGroups->length(); i++) {
+              aGroup = aListOfGroups[i];
+              aListOfNewGroups.clear();
+              aGroupType = aGroup->GetType();
+              aGroupName = aGroup->GetName();
+
+              TGroupsMap::iterator anIter = aGroupsMap.find(make_pair(aGroupName, aGroupType));
+
+              // convert a list of IDs
+              anInitIDs = aGroup->GetListOfID();
+              anNewIDs->length(anInitIDs->length());
+              if ( aGroupType == SMESH::NODE )
+                for (int j = 0; j < anInitIDs->length(); j++) {
+                  anNewIDs[j] = nodesMap.find(anInitIDs[j])->second;
+                }
+              else
+                for (int j = 0; j < anInitIDs->length(); j++) {
+                  anNewIDs[j] = elemsMap.find(anInitIDs[j])->second;
+                }
+              
+              // check that current group name and type don't have identical ones in union mesh
+              if ( anIter == aGroupsMap.end() ) {
+                // add a new group in the mesh
+                aNewGroup = aNewImpl->CreateGroup(aGroupType, aGroupName);
+                // add elements into new group
+                aNewGroup->Add( anNewIDs );
+                
+                aListOfNewGroups.push_back(aNewGroup);
+                aGroupsMap.insert(make_pair( make_pair(aGroupName, aGroupType), aListOfNewGroups ));
+              }
+
+              else if ( theUniteIdenticalGroups ) {
+                // unite identical groups
+                TListOfNewGroups& aNewGroups = anIter->second;
+                aNewGroups.front()->Add( anNewIDs );
+              }
+
+              else {
+                // rename identical groups
+                aNewGroup = aNewImpl->CreateGroup(aGroupType, aGroupName);
+                aNewGroup->Add( anNewIDs );
+                
+                TListOfNewGroups& aNewGroups = anIter->second;
+                string aNewGroupName;
+                if (aNewGroups.size() == 1) {
+                  aNewGroupName = string(aGroupName) + "_1";
+                  aNewGroups.front()->SetName(aNewGroupName.c_str());
+                }
+                char aGroupNum[128];
+                sprintf(aGroupNum, "%u", aNewGroups.size()+1);
+                aNewGroupName = string(aGroupName) + "_" + string(aGroupNum);
+                aNewGroup->SetName(aNewGroupName.c_str());
+                aNewGroups.push_back(aNewGroup);
+              }
+            }//groups loop
+          }
+        }
+      }//meshes loop
+
+      if (theMergeNodesAndElements) {
+        // merge nodes
+        set<const SMDS_MeshNode*> aMeshNodes; // no input nodes
+        SMESH_MeshEditor::TListOfListOfNodes aGroupsOfNodes;
+        aNewEditor.FindCoincidentNodes( aMeshNodes, theMergeTolerance, aGroupsOfNodes );
+        aNewEditor.MergeNodes( aGroupsOfNodes );
+        // merge elements
+        aNewEditor.MergeEqualElements();
+      }
+    }
+  }
+  
+  // Update Python script
+  aPythonDump << aNewMesh << " = " << this;
+  if( !theCommonGroups )
+    aPythonDump << ".Concatenate(";
+  else
+    aPythonDump << ".ConcatenateWithGroups(";
+  aPythonDump << "[";
+  for ( int i = 0; i < theMeshesArray.length(); i++) {
+    if (i > 0) aPythonDump << ", ";
+    aPythonDump << theMeshesArray[i];
+  }
+  aPythonDump << "], ";
+  aPythonDump << theUniteIdenticalGroups << ", "
+              << theMergeNodesAndElements << ", "
+              << theMergeTolerance << ")";
+
+  delete pPythonDump; // enable python dump from GetGroups()
+
+  // 0020577: EDF 1164 SMESH: Bad dump of concatenate with create common groups
+  if ( !aNewMesh->_is_nil() )
+  {
+    SMESH::ListOfGroups_var groups = aNewMesh->GetGroups();
+  }
+
+  // IPAL21468 Change icon of compound because it need not be computed.
+  SALOMEDS::SObject_var aMeshSObj = ObjectToSObject( myCurrentStudy, aNewMesh );
+  if( !aMeshSObj->_is_nil() ) {
+    SALOMEDS::GenericAttribute_var anAttr;
+    SALOMEDS::StudyBuilder_var aBuilder = myCurrentStudy->NewBuilder();
+    anAttr = aBuilder->FindOrCreateAttribute( aMeshSObj,"AttributePixMap" );
+    SALOMEDS::AttributePixMap_var aPixmap = SALOMEDS::AttributePixMap::_narrow(anAttr);
+    aPixmap->SetPixMap("ICON_SMESH_TREE_MESH");
+  }
+
+  return aNewMesh._retn();
+}
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::Save
+ *
+ *  Save SMESH module's data
+ */
+//=============================================================================
+SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
+                                      const char*              theURL,
+                                      bool                     isMultiFile )
+{
+  INFOS( "SMESH_Gen_i::Save" );
+
+  //  ASSERT( theComponent->GetStudy()->StudyId() == myCurrentStudy->StudyId() )
   // san -- in case <myCurrentStudy> differs from theComponent's study,
   // use that of the component
   if ( myCurrentStudy->_is_nil() || 
-       theComponent->GetStudy()->StudyId() != myCurrentStudy->StudyId() )
+    theComponent->GetStudy()->StudyId() != myCurrentStudy->StudyId() )
     SetCurrentStudy( theComponent->GetStudy() );
 
   // Store study contents as a set of python commands
   SavePython(myCurrentStudy);
 
   StudyContext* myStudyContext = GetCurrentStudyContext();
-  
+
   // Declare a byte stream
   SALOMEDS::TMPFile_var aStreamFile;
-  
+
   // Obtain a temporary dir
   TCollection_AsciiString tmpDir =
     ( isMultiFile ) ? TCollection_AsciiString( ( char* )theURL ) : ( char* )SALOMEDS_Tool::GetTmpDir().c_str();
@@ -917,15 +2227,29 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
   HDFgroup*   aSubSubGroup;
   hdf_size    aSize[ 1 ];
 
+
+  //Remove the files if they exist: BugID: 11225
+#ifndef WNT /* unix functionality */
+  TCollection_AsciiString cmd("rm -f \"");
+#else /* windows */
+  TCollection_AsciiString cmd("del /F \"");
+#endif
+
+  cmd+=filename;
+  cmd+="\" \"";
+  cmd+=meshfile;
+  cmd+="\"";
+  system(cmd.ToCString());
+
   // MED writer to be used by storage process
   DriverMED_W_SMESHDS_Mesh myWriter;
   myWriter.SetFile( meshfile.ToCString() );
 
   // Write data
   // ---> create HDF file
-  aFile = new HDFfile( filename.ToCString() );
+  aFile = new HDFfile( (char*) filename.ToCString() );
   aFile->CreateOnDisk();
-  
+
   // --> iterator for top-level objects
   SALOMEDS::ChildIterator_var itBig = myCurrentStudy->NewChildIterator( theComponent );
   for ( ; itBig->More(); itBig->Next() ) {
@@ -941,45 +2265,61 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
       SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( gotBranch );
       for ( ; it->More(); it->Next() ) {
         SALOMEDS::SObject_var mySObject = it->Value();
-       CORBA::Object_var anObject = SObjectToObject( mySObject );
-       if ( !CORBA::is_nil( anObject ) ) {
+        CORBA::Object_var anObject = SObjectToObject( mySObject );
+        if ( !CORBA::is_nil( anObject ) ) {
           SMESH::SMESH_Hypothesis_var myHyp = SMESH::SMESH_Hypothesis::_narrow( anObject );
           if ( !myHyp->_is_nil() ) {
-           SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
-           if ( myImpl ) {
-             string hypname = string( myHyp->GetName() );
-             string libname = string( myHyp->GetLibName() );
-             int    id      = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-             string hypdata = string( myImpl->SaveTo() );
-
-             // for each hypothesis create HDF group basing on its id
-             char hypGrpName[30];
-             sprintf( hypGrpName, "Hypothesis %d", id );
-             aGroup = new HDFgroup( hypGrpName, aTopGroup );
-             aGroup->CreateOnDisk();
-             // --> type name of hypothesis
-             aSize[ 0 ] = hypname.length() + 1;
-             aDataset = new HDFdataset( "Name", aGroup, HDF_STRING, aSize, 1 );
-             aDataset->CreateOnDisk();
-             aDataset->WriteOnDisk( ( char* )( hypname.c_str() ) );
-             aDataset->CloseOnDisk();
-             // --> server plugin library name of hypothesis
-             aSize[ 0 ] = libname.length() + 1;
-             aDataset = new HDFdataset( "LibName", aGroup, HDF_STRING, aSize, 1 );
-             aDataset->CreateOnDisk();
-             aDataset->WriteOnDisk( ( char* )( libname.c_str() ) );
-             aDataset->CloseOnDisk();
-             // --> persistent data of hypothesis
-             aSize[ 0 ] = hypdata.length() + 1;
-             aDataset = new HDFdataset( "Data", aGroup, HDF_STRING, aSize, 1 );
-             aDataset->CreateOnDisk();
-             aDataset->WriteOnDisk( ( char* )( hypdata.c_str() ) );
-             aDataset->CloseOnDisk();
-             // close hypothesis HDF group
-             aGroup->CloseOnDisk();
-           }
-         }
-       }
+            SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
+            if ( myImpl ) {
+              string hypname = string( myHyp->GetName() );
+              string libname = string( myHyp->GetLibName() );
+              // BUG SWP13062
+              // Needs for save crossplatform libname, i.e. parth of name ( ".dll" for
+              // WNT and ".so" for X-system) must be deleted
+              int libname_len = libname.length();
+#ifdef WNT
+              if( libname_len > 4 )
+                libname.resize( libname_len - 4 );
+#else
+              // PAL17753 (Regresion: missing hypothesis in restored study)
+              // "lib" also should be removed from the beginning
+              //if( libname_len > 3 )
+                //libname.resize( libname_len - 3 );
+              if( libname_len > 6 )
+                libname = libname.substr( 3, libname_len - 3 - 3 );
+#endif
+              CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+              int    id      = myStudyContext->findId( string( objStr.in() ) );
+              string hypdata = string( myImpl->SaveTo() );
+
+              // for each hypothesis create HDF group basing on its id
+              char hypGrpName[30];
+              sprintf( hypGrpName, "Hypothesis %d", id );
+              aGroup = new HDFgroup( hypGrpName, aTopGroup );
+              aGroup->CreateOnDisk();
+              // --> type name of hypothesis
+              aSize[ 0 ] = hypname.length() + 1;
+              aDataset = new HDFdataset( "Name", aGroup, HDF_STRING, aSize, 1 );
+              aDataset->CreateOnDisk();
+              aDataset->WriteOnDisk( ( char* )( hypname.c_str() ) );
+              aDataset->CloseOnDisk();
+              // --> server plugin library name of hypothesis
+              aSize[ 0 ] = libname.length() + 1;
+              aDataset = new HDFdataset( "LibName", aGroup, HDF_STRING, aSize, 1 );
+              aDataset->CreateOnDisk();
+              aDataset->WriteOnDisk( ( char* )( libname.c_str() ) );
+              aDataset->CloseOnDisk();
+              // --> persistent data of hypothesis
+              aSize[ 0 ] = hypdata.length() + 1;
+              aDataset = new HDFdataset( "Data", aGroup, HDF_STRING, aSize, 1 );
+              aDataset->CreateOnDisk();
+              aDataset->WriteOnDisk( ( char* )( hypdata.c_str() ) );
+              aDataset->CloseOnDisk();
+              // close hypothesis HDF group
+              aGroup->CloseOnDisk();
+            }
+          }
+        }
       }
       // close hypotheses root HDF group
       aTopGroup->CloseOnDisk();
@@ -994,45 +2334,61 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
       SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( gotBranch );
       for ( ; it->More(); it->Next() ) {
         SALOMEDS::SObject_var mySObject = it->Value();
-       CORBA::Object_var anObject = SObjectToObject( mySObject );
-       if ( !CORBA::is_nil( anObject ) ) {
+        CORBA::Object_var anObject = SObjectToObject( mySObject );
+        if ( !CORBA::is_nil( anObject ) ) {
           SMESH::SMESH_Hypothesis_var myHyp = SMESH::SMESH_Hypothesis::_narrow( anObject );
           if ( !myHyp->_is_nil() ) {
-           SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
-           if ( myImpl ) {
-             string hypname = string( myHyp->GetName() );
-             string libname = string( myHyp->GetLibName() );
-             int    id      = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-             string hypdata = string( myImpl->SaveTo() );
-
-             // for each algorithm create HDF group basing on its id
-             char hypGrpName[30];
-             sprintf( hypGrpName, "Algorithm %d", id );
-             aGroup = new HDFgroup( hypGrpName, aTopGroup );
-             aGroup->CreateOnDisk();
-             // --> type name of algorithm
-             aSize[0] = hypname.length() + 1;
-             aDataset = new HDFdataset( "Name", aGroup, HDF_STRING, aSize, 1 );
-             aDataset->CreateOnDisk();
-             aDataset->WriteOnDisk( ( char* )( hypname.c_str() ) );
-             aDataset->CloseOnDisk();
-             // --> server plugin library name of hypothesis
-             aSize[0] = libname.length() + 1;
-             aDataset = new HDFdataset( "LibName", aGroup, HDF_STRING, aSize, 1 );
-             aDataset->CreateOnDisk();
-             aDataset->WriteOnDisk( ( char* )( libname.c_str() ) );
-             aDataset->CloseOnDisk();
-             // --> persistent data of algorithm
-             aSize[0] = hypdata.length() + 1;
-             aDataset = new HDFdataset( "Data", aGroup, HDF_STRING, aSize, 1 );
-             aDataset->CreateOnDisk();
-             aDataset->WriteOnDisk( ( char* )( hypdata.c_str() ) );
-             aDataset->CloseOnDisk();
-             // close algorithm HDF group
-             aGroup->CloseOnDisk();
-           }
-         }
-       }
+            SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
+            if ( myImpl ) {
+              string hypname = string( myHyp->GetName() );
+              string libname = string( myHyp->GetLibName() );
+              // BUG SWP13062
+              // Needs for save crossplatform libname, i.e. parth of name ( ".dll" for
+              // WNT and ".so" for X-system) must be deleted
+              int libname_len = libname.length();
+#ifdef WNT
+              if( libname_len > 4 )
+                libname.resize( libname_len - 4 );
+#else
+              // PAL17753 (Regresion: missing hypothesis in restored study)
+              // "lib" also should be removed from the beginning
+              //if( libname_len > 3 )
+                //libname.resize( libname_len - 3 );
+              if( libname_len > 6 )
+                libname = libname.substr( 3, libname_len - 3 - 3 );
+#endif
+              CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+              int    id      = myStudyContext->findId( string( objStr.in() ) );
+              string hypdata = string( myImpl->SaveTo() );
+
+              // for each algorithm create HDF group basing on its id
+              char hypGrpName[30];
+              sprintf( hypGrpName, "Algorithm %d", id );
+              aGroup = new HDFgroup( hypGrpName, aTopGroup );
+              aGroup->CreateOnDisk();
+              // --> type name of algorithm
+              aSize[0] = hypname.length() + 1;
+              aDataset = new HDFdataset( "Name", aGroup, HDF_STRING, aSize, 1 );
+              aDataset->CreateOnDisk();
+              aDataset->WriteOnDisk( ( char* )( hypname.c_str() ) );
+              aDataset->CloseOnDisk();
+              // --> server plugin library name of hypothesis
+              aSize[0] = libname.length() + 1;
+              aDataset = new HDFdataset( "LibName", aGroup, HDF_STRING, aSize, 1 );
+              aDataset->CreateOnDisk();
+              aDataset->WriteOnDisk( ( char* )( libname.c_str() ) );
+              aDataset->CloseOnDisk();
+              // --> persistent data of algorithm
+              aSize[0] = hypdata.length() + 1;
+              aDataset = new HDFdataset( "Data", aGroup, HDF_STRING, aSize, 1 );
+              aDataset->CreateOnDisk();
+              aDataset->WriteOnDisk( ( char* )( hypdata.c_str() ) );
+              aDataset->CloseOnDisk();
+              // close algorithm HDF group
+              aGroup->CloseOnDisk();
+            }
+          }
+        }
       }
       // close algorithms root HDF group
       aTopGroup->CloseOnDisk();
@@ -1041,152 +2397,168 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
     else if ( gotBranch->Tag() > GetAlgorithmsRootTag() ) {
       CORBA::Object_var anObject = SObjectToObject( gotBranch );
       if ( !CORBA::is_nil( anObject ) ) {
-       SMESH::SMESH_Mesh_var myMesh = SMESH::SMESH_Mesh::_narrow( anObject ) ;
+        SMESH::SMESH_Mesh_var myMesh = SMESH::SMESH_Mesh::_narrow( anObject ) ;
         if ( !myMesh->_is_nil() ) {
-         SMESH_Mesh_i* myImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( myMesh ).in() );
-         if ( myImpl ) {
-           int id = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-           ::SMESH_Mesh& myLocMesh = myImpl->GetImpl();
-           SMESHDS_Mesh* mySMESHDSMesh = myLocMesh.GetMeshDS();
-
-           // for each mesh open the HDF group basing on its id
-           char meshGrpName[ 30 ];
-           sprintf( meshGrpName, "Mesh %d", id );
-           aTopGroup = new HDFgroup( meshGrpName, aFile );
-           aTopGroup->CreateOnDisk();
-
-           // --> put dataset to hdf file which is a flag that mesh has data
-           string strHasData = "0";
-           // check if the mesh is not empty
-           if ( mySMESHDSMesh->NbNodes() > 0 ) {
-             // write mesh data to med file
-             myWriter.SetMesh( mySMESHDSMesh );
-             myWriter.SetMeshId( id );
-             strHasData = "1";
-           }
-           aSize[ 0 ] = strHasData.length() + 1;
-           aDataset = new HDFdataset( "Has data", aTopGroup, HDF_STRING, aSize, 1 );
-           aDataset->CreateOnDisk();
-           aDataset->WriteOnDisk( ( char* )( strHasData.c_str() ) );
-           aDataset->CloseOnDisk();
-           
-           // write reference on a shape if exists
-           SALOMEDS::SObject_var myRef;
+          SMESH_Mesh_i* myImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( myMesh ).in() );
+          if ( myImpl ) {
+            CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+            int id = myStudyContext->findId( string( objStr.in() ) );
+            ::SMESH_Mesh& myLocMesh = myImpl->GetImpl();
+            SMESHDS_Mesh* mySMESHDSMesh = myLocMesh.GetMeshDS();
+            bool hasShape = myLocMesh.HasShapeToMesh();
+
+            // for each mesh open the HDF group basing on its id
+            char meshGrpName[ 30 ];
+            sprintf( meshGrpName, "Mesh %d", id );
+            aTopGroup = new HDFgroup( meshGrpName, aFile );
+            aTopGroup->CreateOnDisk();
+
+            // --> put dataset to hdf file which is a flag that mesh has data
+            string strHasData = "0";
+            // check if the mesh is not empty
+            if ( mySMESHDSMesh->NbNodes() > 0 ) {
+              // write mesh data to med file
+              myWriter.SetMesh( mySMESHDSMesh );
+              myWriter.SetMeshId( id );
+              strHasData = "1";
+            }
+            aSize[ 0 ] = strHasData.length() + 1;
+            aDataset = new HDFdataset( "Has data", aTopGroup, HDF_STRING, aSize, 1 );
+            aDataset->CreateOnDisk();
+            aDataset->WriteOnDisk( ( char* )( strHasData.c_str() ) );
+            aDataset->CloseOnDisk();
+
+            // ouv : NPAL12872
+            // for each mesh open the HDF group basing on its auto color parameter
+            char meshAutoColorName[ 30 ];
+            sprintf( meshAutoColorName, "AutoColorMesh %d", id );
+            int anAutoColor[1];
+            anAutoColor[0] = myImpl->GetAutoColor();
+            aSize[ 0 ] = 1;
+            aDataset = new HDFdataset( meshAutoColorName, aTopGroup, HDF_INT32, aSize, 1 );
+            aDataset->CreateOnDisk();
+            aDataset->WriteOnDisk( anAutoColor );
+            aDataset->CloseOnDisk();
+
+            // write reference on a shape if exists
+            SALOMEDS::SObject_var myRef;
             bool shapeRefFound = false;
-           bool found = gotBranch->FindSubObject( GetRefOnShapeTag(), myRef );
-           if ( found ) {
-             SALOMEDS::SObject_var myShape;
-             bool ok = myRef->ReferencedObject( myShape );
-             if ( ok ) {
+            bool found = gotBranch->FindSubObject( GetRefOnShapeTag(), myRef );
+            if ( found ) {
+              SALOMEDS::SObject_var myShape;
+              bool ok = myRef->ReferencedObject( myShape );
+              if ( ok ) {
                 shapeRefFound = (! CORBA::is_nil( myShape->GetObject() ));
-               string myRefOnObject = myShape->GetID();
-               if ( shapeRefFound && myRefOnObject.length() > 0 ) {
-                 aSize[ 0 ] = myRefOnObject.length() + 1;
-                 aDataset = new HDFdataset( "Ref on shape", aTopGroup, HDF_STRING, aSize, 1 );
-                 aDataset->CreateOnDisk();
-                 aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
-                 aDataset->CloseOnDisk();
-               }
-             }
-           }
-
-           // write applied hypotheses if exist
-           SALOMEDS::SObject_var myHypBranch;
-           found = gotBranch->FindSubObject( GetRefOnAppliedHypothesisTag(), myHypBranch );
-           if ( found && !shapeRefFound ) { // remove applied hyps
+                string myRefOnObject = myShape->GetID();
+                if ( shapeRefFound && myRefOnObject.length() > 0 ) {
+                  aSize[ 0 ] = myRefOnObject.length() + 1;
+                  aDataset = new HDFdataset( "Ref on shape", aTopGroup, HDF_STRING, aSize, 1 );
+                  aDataset->CreateOnDisk();
+                  aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
+                  aDataset->CloseOnDisk();
+                }
+              }
+            }
+
+            // write applied hypotheses if exist
+            SALOMEDS::SObject_var myHypBranch;
+            found = gotBranch->FindSubObject( GetRefOnAppliedHypothesisTag(), myHypBranch );
+            if ( found && !shapeRefFound && hasShape) { // remove applied hyps
               myCurrentStudy->NewBuilder()->RemoveObjectWithChildren( myHypBranch );
             }
-           if ( found && shapeRefFound ) {
-             aGroup = new HDFgroup( "Applied Hypotheses", aTopGroup );
-             aGroup->CreateOnDisk();
-
-             SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myHypBranch );
-             int hypNb = 0;
-             for ( ; it->More(); it->Next() ) {
-               SALOMEDS::SObject_var mySObject = it->Value();
-               SALOMEDS::SObject_var myRefOnHyp;
-               bool ok = mySObject->ReferencedObject( myRefOnHyp );
-               if ( ok ) {
-                 // san - it is impossible to recover applied hypotheses
+            if ( found && (shapeRefFound || !hasShape) ) {
+              aGroup = new HDFgroup( "Applied Hypotheses", aTopGroup );
+              aGroup->CreateOnDisk();
+
+              SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myHypBranch );
+              int hypNb = 0;
+              for ( ; it->More(); it->Next() ) {
+                SALOMEDS::SObject_var mySObject = it->Value();
+                SALOMEDS::SObject_var myRefOnHyp;
+                bool ok = mySObject->ReferencedObject( myRefOnHyp );
+                if ( ok ) {
+                  // san - it is impossible to recover applied hypotheses
                   //       using their entries within Load() method,
-                 // for there are no AttributeIORs in the study when Load() is working. 
-                 // Hence, it is better to store persistent IDs of hypotheses as references to them
-
-                 //string myRefOnObject = myRefOnHyp->GetID();
-                 CORBA::Object_var anObject = SObjectToObject( myRefOnHyp );
-                 int id = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-                 //if ( myRefOnObject.length() > 0 ) {
-                 //aSize[ 0 ] = myRefOnObject.length() + 1;
-                 char hypName[ 30 ], hypId[ 30 ];
-                 sprintf( hypName, "Hyp %d", ++hypNb );
-                 sprintf( hypId, "%d", id );
-                 aSize[ 0 ] = strlen( hypId ) + 1;
-                 aDataset = new HDFdataset( hypName, aGroup, HDF_STRING, aSize, 1 );
-                 aDataset->CreateOnDisk();
-                 //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
-                 aDataset->WriteOnDisk( hypId );
-                 aDataset->CloseOnDisk();
-                 //}
-               }
-             }
-             aGroup->CloseOnDisk();
-           }
-
-           // write applied algorithms if exist
-           SALOMEDS::SObject_var myAlgoBranch;
-           found = gotBranch->FindSubObject( GetRefOnAppliedAlgorithmsTag(), myAlgoBranch );
-           if ( found && !shapeRefFound ) { // remove applied algos
+                  // for there are no AttributeIORs in the study when Load() is working. 
+                  // Hence, it is better to store persistent IDs of hypotheses as references to them
+
+                  //string myRefOnObject = myRefOnHyp->GetID();
+                  CORBA::Object_var anObject = SObjectToObject( myRefOnHyp );
+                  CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+                  int id = myStudyContext->findId( string( objStr.in() ) );
+                  //if ( myRefOnObject.length() > 0 ) {
+                  //aSize[ 0 ] = myRefOnObject.length() + 1;
+                  char hypName[ 30 ], hypId[ 30 ];
+                  sprintf( hypName, "Hyp %d", ++hypNb );
+                  sprintf( hypId, "%d", id );
+                  aSize[ 0 ] = strlen( hypId ) + 1;
+                  aDataset = new HDFdataset( hypName, aGroup, HDF_STRING, aSize, 1 );
+                  aDataset->CreateOnDisk();
+                  //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
+                  aDataset->WriteOnDisk( hypId );
+                  aDataset->CloseOnDisk();
+                  //}
+                }
+              }
+              aGroup->CloseOnDisk();
+            }
+
+            // write applied algorithms if exist
+            SALOMEDS::SObject_var myAlgoBranch;
+            found = gotBranch->FindSubObject( GetRefOnAppliedAlgorithmsTag(), myAlgoBranch );
+            if ( found && !shapeRefFound && hasShape) { // remove applied algos
               myCurrentStudy->NewBuilder()->RemoveObjectWithChildren( myAlgoBranch );
             }
-           if ( found && shapeRefFound ) {
-             aGroup = new HDFgroup( "Applied Algorithms", aTopGroup );
-             aGroup->CreateOnDisk();
-
-             SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myAlgoBranch );
-             int algoNb = 0;
-             for ( ; it->More(); it->Next() ) {
-               SALOMEDS::SObject_var mySObject = it->Value();
-               SALOMEDS::SObject_var myRefOnAlgo;
-               bool ok = mySObject->ReferencedObject( myRefOnAlgo );
-               if ( ok ) {
-                 // san - it is impossible to recover applied algorithms
+            if ( found && (shapeRefFound || !hasShape)) {
+              aGroup = new HDFgroup( "Applied Algorithms", aTopGroup );
+              aGroup->CreateOnDisk();
+
+              SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myAlgoBranch );
+              int algoNb = 0;
+              for ( ; it->More(); it->Next() ) {
+                SALOMEDS::SObject_var mySObject = it->Value();
+                SALOMEDS::SObject_var myRefOnAlgo;
+                bool ok = mySObject->ReferencedObject( myRefOnAlgo );
+                if ( ok ) {
+                  // san - it is impossible to recover applied algorithms
                   //       using their entries within Load() method,
-                 // for there are no AttributeIORs in the study when Load() is working. 
-                 // Hence, it is better to store persistent IDs of algorithms as references to them
-
-                 //string myRefOnObject = myRefOnAlgo->GetID();
-                 CORBA::Object_var anObject = SObjectToObject( myRefOnAlgo );
-                 int id = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-                 //if ( myRefOnObject.length() > 0 ) {
-                 //aSize[ 0 ] = myRefOnObject.length() + 1;
-                 char algoName[ 30 ], algoId[ 30 ];
-                 sprintf( algoName, "Algo %d", ++algoNb );
-                 sprintf( algoId, "%d", id );
-                 aSize[ 0 ] = strlen( algoId ) + 1;
-                 aDataset = new HDFdataset( algoName, aGroup, HDF_STRING, aSize, 1 );
-                 aDataset->CreateOnDisk();
-                 //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
-                 aDataset->WriteOnDisk( algoId );
-                 aDataset->CloseOnDisk();
-                 //}
-               }
-             }
-             aGroup->CloseOnDisk();
-           }
-
-           // --> submesh objects sub-branches
-
-           for ( int i = GetSubMeshOnVertexTag(); i <= GetSubMeshOnCompoundTag(); i++ ) {
-             SALOMEDS::SObject_var mySubmeshBranch;
-             found = gotBranch->FindSubObject( i, mySubmeshBranch );
+                  // for there are no AttributeIORs in the study when Load() is working. 
+                  // Hence, it is better to store persistent IDs of algorithms as references to them
+
+                  //string myRefOnObject = myRefOnAlgo->GetID();
+                  CORBA::Object_var anObject = SObjectToObject( myRefOnAlgo );
+                  CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+                  int id = myStudyContext->findId( string( objStr.in() ) );
+                  //if ( myRefOnObject.length() > 0 ) {
+                  //aSize[ 0 ] = myRefOnObject.length() + 1;
+                  char algoName[ 30 ], algoId[ 30 ];
+                  sprintf( algoName, "Algo %d", ++algoNb );
+                  sprintf( algoId, "%d", id );
+                  aSize[ 0 ] = strlen( algoId ) + 1;
+                  aDataset = new HDFdataset( algoName, aGroup, HDF_STRING, aSize, 1 );
+                  aDataset->CreateOnDisk();
+                  //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
+                  aDataset->WriteOnDisk( algoId );
+                  aDataset->CloseOnDisk();
+                  //}
+                }
+              }
+              aGroup->CloseOnDisk();
+            }
+
+            // --> submesh objects sub-branches
+
+            for ( int i = GetSubMeshOnVertexTag(); i <= GetSubMeshOnCompoundTag(); i++ ) {
+              SALOMEDS::SObject_var mySubmeshBranch;
+              found = gotBranch->FindSubObject( i, mySubmeshBranch );
 
               if ( found ) // check if there is shape reference in submeshes
               {
                 bool hasShapeRef = false;
-               SALOMEDS::ChildIterator_var itSM =
+                SALOMEDS::ChildIterator_var itSM =
                   myCurrentStudy->NewChildIterator( mySubmeshBranch );
-               for ( ; itSM->More(); itSM->Next() ) {
-                 SALOMEDS::SObject_var mySubRef, myShape, mySObject = itSM->Value();
+                for ( ; itSM->More(); itSM->Next() ) {
+                  SALOMEDS::SObject_var mySubRef, myShape, mySObject = itSM->Value();
                   if ( mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef ))
                     mySubRef->ReferencedObject( myShape );
                   if ( !CORBA::is_nil( myShape ) && !CORBA::is_nil( myShape->GetObject() ))
@@ -1217,44 +2589,45 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                   found = false;
                 }
               }  // end check if there is shape reference in submeshes
-             if ( found ) {
-               char name_meshgroup[ 30 ];
-               if ( i == GetSubMeshOnVertexTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Vertex" );
-               else if ( i == GetSubMeshOnEdgeTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Edge" );
-               else if ( i == GetSubMeshOnWireTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Wire" );
-               else if ( i == GetSubMeshOnFaceTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Face" );
-               else if ( i == GetSubMeshOnShellTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Shell" );
-               else if ( i == GetSubMeshOnSolidTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Solid" );
-               else if ( i == GetSubMeshOnCompoundTag() )
-                 strcpy( name_meshgroup, "SubMeshes On Compound" );
-               
-               // for each type of submeshes create container HDF group
-               aGroup = new HDFgroup( name_meshgroup, aTopGroup );
-               aGroup->CreateOnDisk();
-           
-               // iterator for all submeshes of given type
-               SALOMEDS::ChildIterator_var itSM = myCurrentStudy->NewChildIterator( mySubmeshBranch );
-               for ( ; itSM->More(); itSM->Next() ) {
-                 SALOMEDS::SObject_var mySObject = itSM->Value();
-                 CORBA::Object_var anSubObject = SObjectToObject( mySObject );
-                 if ( !CORBA::is_nil( anSubObject ))
+              if ( found ) {
+                char name_meshgroup[ 30 ];
+                if ( i == GetSubMeshOnVertexTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Vertex" );
+                else if ( i == GetSubMeshOnEdgeTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Edge" );
+                else if ( i == GetSubMeshOnWireTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Wire" );
+                else if ( i == GetSubMeshOnFaceTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Face" );
+                else if ( i == GetSubMeshOnShellTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Shell" );
+                else if ( i == GetSubMeshOnSolidTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Solid" );
+                else if ( i == GetSubMeshOnCompoundTag() )
+                  strcpy( name_meshgroup, "SubMeshes On Compound" );
+
+                // for each type of submeshes create container HDF group
+                aGroup = new HDFgroup( name_meshgroup, aTopGroup );
+                aGroup->CreateOnDisk();
+
+                // iterator for all submeshes of given type
+                SALOMEDS::ChildIterator_var itSM = myCurrentStudy->NewChildIterator( mySubmeshBranch );
+                for ( ; itSM->More(); itSM->Next() ) {
+                  SALOMEDS::SObject_var mySObject = itSM->Value();
+                  CORBA::Object_var anSubObject = SObjectToObject( mySObject );
+                  if ( !CORBA::is_nil( anSubObject ))
                   {
-                   SMESH::SMESH_subMesh_var mySubMesh = SMESH::SMESH_subMesh::_narrow( anSubObject ) ;
-                   int subid = myStudyContext->findId( string( GetORB()->object_to_string( anSubObject ) ) );
-                     
-                   // for each mesh open the HDF group basing on its id
-                   char submeshGrpName[ 30 ];
-                   sprintf( submeshGrpName, "SubMesh %d", subid );
-                   aSubGroup = new HDFgroup( submeshGrpName, aGroup );
-                   aSubGroup->CreateOnDisk();
-
-                   // write reference on a shape, already checked if it exists
+                    SMESH::SMESH_subMesh_var mySubMesh = SMESH::SMESH_subMesh::_narrow( anSubObject ) ;
+                    CORBA::String_var objStr = GetORB()->object_to_string( anSubObject );
+                    int subid = myStudyContext->findId( string( objStr.in() ) );
+
+                    // for each mesh open the HDF group basing on its id
+                    char submeshGrpName[ 30 ];
+                    sprintf( submeshGrpName, "SubMesh %d", subid );
+                    aSubGroup = new HDFgroup( submeshGrpName, aGroup );
+                    aSubGroup->CreateOnDisk();
+
+                    // write reference on a shape, already checked if it exists
                     SALOMEDS::SObject_var mySubRef, myShape;
                     if ( mySObject->FindSubObject( GetRefOnShapeTag(), mySubRef ))
                       mySubRef->ReferencedObject( myShape );
@@ -1267,141 +2640,161 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                       aDataset->CloseOnDisk();
                     }
 
-                   // write applied hypotheses if exist
-                   SALOMEDS::SObject_var mySubHypBranch;
-                   found = mySObject->FindSubObject( GetRefOnAppliedHypothesisTag(), mySubHypBranch );
-                   if ( found ) {
-                     aSubSubGroup = new HDFgroup( "Applied Hypotheses", aSubGroup );
-                     aSubSubGroup->CreateOnDisk();
-
-                     SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( mySubHypBranch );
-                     int hypNb = 0;
-                     for ( ; it->More(); it->Next() ) {
-                       SALOMEDS::SObject_var mySubSObject = it->Value();
-                       SALOMEDS::SObject_var myRefOnHyp;
-                       bool ok = mySubSObject->ReferencedObject( myRefOnHyp );
-                       if ( ok ) {
-                         //string myRefOnObject = myRefOnHyp->GetID();
-                         CORBA::Object_var anObject = SObjectToObject( myRefOnHyp );
-                         int id = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-                         //if ( myRefOnObject.length() > 0 ) {
-                         //aSize[ 0 ] = myRefOnObject.length() + 1;
-                         char hypName[ 30 ], hypId[ 30 ];
-                         sprintf( hypName, "Hyp %d", ++hypNb );
-                         sprintf( hypId, "%d", id );
-                         aSize[ 0 ] = strlen( hypId ) + 1;
-                         aDataset = new HDFdataset( hypName, aSubSubGroup, HDF_STRING, aSize, 1 );
-                         aDataset->CreateOnDisk();
-                         //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
-                         aDataset->WriteOnDisk( hypId );
-                         aDataset->CloseOnDisk();
-                         //}
-                       }
-                     }
-                     aSubSubGroup->CloseOnDisk();
-                   }
-                   
-                   // write applied algorithms if exist
-                   SALOMEDS::SObject_var mySubAlgoBranch;
-                   found = mySObject->FindSubObject( GetRefOnAppliedAlgorithmsTag(), mySubAlgoBranch );
-                   if ( found ) {
-                     aSubSubGroup = new HDFgroup( "Applied Algorithms", aSubGroup );
-                     aSubSubGroup->CreateOnDisk();
-
-                     SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( mySubAlgoBranch );
-                     int algoNb = 0;
-                     for ( ; it->More(); it->Next() ) {
-                       SALOMEDS::SObject_var mySubSObject = it->Value();
-                       SALOMEDS::SObject_var myRefOnAlgo;
-                       bool ok = mySubSObject->ReferencedObject( myRefOnAlgo );
-                       if ( ok ) {
-                         //string myRefOnObject = myRefOnAlgo->GetID();
-                         CORBA::Object_var anObject = SObjectToObject( myRefOnAlgo );
-                         int id = myStudyContext->findId( string( GetORB()->object_to_string( anObject ) ) );
-                         //if ( myRefOnObject.length() > 0 ) {
-                         //aSize[ 0 ] = myRefOnObject.length() + 1;
-                         char algoName[ 30 ], algoId[ 30 ];
-                         sprintf( algoName, "Algo %d", ++algoNb );
-                         sprintf( algoId, "%d", id );
-                         aSize[ 0 ] = strlen( algoId ) + 1;
-                         aDataset = new HDFdataset( algoName, aSubSubGroup, HDF_STRING, aSize, 1 );
-                         aDataset->CreateOnDisk();
-                         //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
-                         aDataset->WriteOnDisk( algoId );
-                         aDataset->CloseOnDisk();
-                         //}
-                       }
-                     }
-                     aSubSubGroup->CloseOnDisk();
-                   }
-                   // close submesh HDF group
-                   aSubGroup->CloseOnDisk();
-                 }
-               }
-               // close container of submeshes by type HDF group
-               aGroup->CloseOnDisk();
-             }
-           }
+                    // write applied hypotheses if exist
+                    SALOMEDS::SObject_var mySubHypBranch;
+                    found = mySObject->FindSubObject( GetRefOnAppliedHypothesisTag(), mySubHypBranch );
+                    if ( found ) {
+                      aSubSubGroup = new HDFgroup( "Applied Hypotheses", aSubGroup );
+                      aSubSubGroup->CreateOnDisk();
+
+                      SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( mySubHypBranch );
+                      int hypNb = 0;
+                      for ( ; it->More(); it->Next() ) {
+                        SALOMEDS::SObject_var mySubSObject = it->Value();
+                        SALOMEDS::SObject_var myRefOnHyp;
+                        bool ok = mySubSObject->ReferencedObject( myRefOnHyp );
+                        if ( ok ) {
+                          //string myRefOnObject = myRefOnHyp->GetID();
+                          CORBA::Object_var anObject = SObjectToObject( myRefOnHyp );
+                          CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+                          int id = myStudyContext->findId( string( objStr.in() ) );
+                          //if ( myRefOnObject.length() > 0 ) {
+                          //aSize[ 0 ] = myRefOnObject.length() + 1;
+                          char hypName[ 30 ], hypId[ 30 ];
+                          sprintf( hypName, "Hyp %d", ++hypNb );
+                          sprintf( hypId, "%d", id );
+                          aSize[ 0 ] = strlen( hypId ) + 1;
+                          aDataset = new HDFdataset( hypName, aSubSubGroup, HDF_STRING, aSize, 1 );
+                          aDataset->CreateOnDisk();
+                          //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
+                          aDataset->WriteOnDisk( hypId );
+                          aDataset->CloseOnDisk();
+                          //}
+                        }
+                      }
+                      aSubSubGroup->CloseOnDisk();
+                    }
+
+                    // write applied algorithms if exist
+                    SALOMEDS::SObject_var mySubAlgoBranch;
+                    found = mySObject->FindSubObject( GetRefOnAppliedAlgorithmsTag(), mySubAlgoBranch );
+                    if ( found ) {
+                      aSubSubGroup = new HDFgroup( "Applied Algorithms", aSubGroup );
+                      aSubSubGroup->CreateOnDisk();
+
+                      SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( mySubAlgoBranch );
+                      int algoNb = 0;
+                      for ( ; it->More(); it->Next() ) {
+                        SALOMEDS::SObject_var mySubSObject = it->Value();
+                        SALOMEDS::SObject_var myRefOnAlgo;
+                        bool ok = mySubSObject->ReferencedObject( myRefOnAlgo );
+                        if ( ok ) {
+                          //string myRefOnObject = myRefOnAlgo->GetID();
+                          CORBA::Object_var anObject = SObjectToObject( myRefOnAlgo );
+                          CORBA::String_var objStr = GetORB()->object_to_string( anObject );
+                          int id = myStudyContext->findId( string( objStr.in() ) );
+                          //if ( myRefOnObject.length() > 0 ) {
+                          //aSize[ 0 ] = myRefOnObject.length() + 1;
+                          char algoName[ 30 ], algoId[ 30 ];
+                          sprintf( algoName, "Algo %d", ++algoNb );
+                          sprintf( algoId, "%d", id );
+                          aSize[ 0 ] = strlen( algoId ) + 1;
+                          aDataset = new HDFdataset( algoName, aSubSubGroup, HDF_STRING, aSize, 1 );
+                          aDataset->CreateOnDisk();
+                          //aDataset->WriteOnDisk( ( char* )( myRefOnObject.c_str() ) );
+                          aDataset->WriteOnDisk( algoId );
+                          aDataset->CloseOnDisk();
+                          //}
+                        }
+                      }
+                      aSubSubGroup->CloseOnDisk();
+                    }
+                    // close submesh HDF group
+                    aSubGroup->CloseOnDisk();
+                  }
+                }
+                // close container of submeshes by type HDF group
+                aGroup->CloseOnDisk();
+              }
+            }
             // All sub-meshes will be stored in MED file
-            if ( shapeRefFound )
-              myWriter.AddAllSubMeshes();
-
-           // groups root sub-branch
-           SALOMEDS::SObject_var myGroupsBranch;
-           for ( int i = GetNodeGroupsTag(); i <= GetVolumeGroupsTag(); i++ ) {
-             found = gotBranch->FindSubObject( i, myGroupsBranch );
-             if ( found ) {
-               char name_group[ 30 ];
-               if ( i == GetNodeGroupsTag() )
-                 strcpy( name_group, "Groups of Nodes" );
-               else if ( i == GetEdgeGroupsTag() )
-                 strcpy( name_group, "Groups of Edges" );
-               else if ( i == GetFaceGroupsTag() )
-                 strcpy( name_group, "Groups of Faces" );
-               else if ( i == GetVolumeGroupsTag() )
-                 strcpy( name_group, "Groups of Volumes" );
-
-               aGroup = new HDFgroup( name_group, aTopGroup );
-               aGroup->CreateOnDisk();
-
-               SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myGroupsBranch );
-               for ( ; it->More(); it->Next() ) {
-                 SALOMEDS::SObject_var mySObject = it->Value();
-                 CORBA::Object_var aSubObject = SObjectToObject( mySObject );
-                 if ( !CORBA::is_nil( aSubObject ) ) {
-                   SMESH_GroupBase_i* myGroupImpl =
-                      dynamic_cast<SMESH_GroupBase_i*>( GetServant( aSubObject ).in() );
-                   if ( !myGroupImpl )
-                     continue;
+            // .. will NOT (PAL 12992)
+            //if ( shapeRefFound )
+            //myWriter.AddAllSubMeshes();
+
+            // groups root sub-branch
+            SALOMEDS::SObject_var myGroupsBranch;
+            for ( int i = GetNodeGroupsTag(); i <= GetVolumeGroupsTag(); i++ ) {
+              found = gotBranch->FindSubObject( i, myGroupsBranch );
+              if ( found ) {
+                char name_group[ 30 ];
+                if ( i == GetNodeGroupsTag() )
+                  strcpy( name_group, "Groups of Nodes" );
+                else if ( i == GetEdgeGroupsTag() )
+                  strcpy( name_group, "Groups of Edges" );
+                else if ( i == GetFaceGroupsTag() )
+                  strcpy( name_group, "Groups of Faces" );
+                else if ( i == GetVolumeGroupsTag() )
+                  strcpy( name_group, "Groups of Volumes" );
+
+                aGroup = new HDFgroup( name_group, aTopGroup );
+                aGroup->CreateOnDisk();
 
-                   int anId = myStudyContext->findId( string( GetORB()->object_to_string( aSubObject ) ) );
-                   
-                   // For each group, create a dataset named "Group <group_persistent_id>"
+                SALOMEDS::ChildIterator_var it = myCurrentStudy->NewChildIterator( myGroupsBranch );
+                for ( ; it->More(); it->Next() ) {
+                  SALOMEDS::SObject_var mySObject = it->Value();
+                  CORBA::Object_var aSubObject = SObjectToObject( mySObject );
+                  if ( !CORBA::is_nil( aSubObject ) ) {
+                    SMESH_GroupBase_i* myGroupImpl =
+                      dynamic_cast<SMESH_GroupBase_i*>( GetServant( aSubObject ).in() );
+                    if ( !myGroupImpl )
+                      continue;
+                    
+                    CORBA::String_var objStr = GetORB()->object_to_string( aSubObject );
+                    int anId = myStudyContext->findId( string( objStr.in() ) );
+                    
+                    // For each group, create a dataset named "Group <group_persistent_id>"
                     // and store the group's user name into it
-                   char grpName[ 30 ];
-                   sprintf( grpName, "Group %d", anId );
-                   char* aUserName = myGroupImpl->GetName();
-                   aSize[ 0 ] = strlen( aUserName ) + 1;
-
-                   aDataset = new HDFdataset( grpName, aGroup, HDF_STRING, aSize, 1 );
-                   aDataset->CreateOnDisk();
-                   aDataset->WriteOnDisk( aUserName );
-                   aDataset->CloseOnDisk();
-
-                   // Store the group contents into MED file
-                   if ( myLocMesh.GetGroup( myGroupImpl->GetLocalID() ) ) {
-
-                     if(MYDEBUG) MESSAGE( "VSR - SMESH_Gen_i::Save(): saving group with StoreName = "
-                              << grpName << " to MED file" );
-                     SMESHDS_GroupBase* aGrpBaseDS =
+                    char grpName[ 30 ];
+                    sprintf( grpName, "Group %d", anId );
+                    char* aUserName = myGroupImpl->GetName();
+                    aSize[ 0 ] = strlen( aUserName ) + 1;
+                    
+                    aDataset = new HDFdataset( grpName, aGroup, HDF_STRING, aSize, 1 );
+                    aDataset->CreateOnDisk();
+                    aDataset->WriteOnDisk( aUserName );
+                    aDataset->CloseOnDisk();
+
+                    // ouv : NPAL12872
+                    // For each group, create a dataset named "Group <group_persistent_id> Color"
+                    // and store the group's color into it
+                    char grpColorName[ 30 ];
+                    sprintf( grpColorName, "ColorGroup %d", anId );
+                    SALOMEDS::Color aColor = myGroupImpl->GetColor();
+                    double anRGB[3];
+                    anRGB[ 0 ] = aColor.R;
+                    anRGB[ 1 ] = aColor.G;
+                    anRGB[ 2 ] = aColor.B;
+                    aSize[ 0 ] = 3;
+                    aDataset = new HDFdataset( grpColorName, aGroup, HDF_FLOAT64, aSize, 1 );
+                    aDataset->CreateOnDisk();
+                    aDataset->WriteOnDisk( anRGB );
+                    aDataset->CloseOnDisk();
+
+                    // Store the group contents into MED file
+                    if ( myLocMesh.GetGroup( myGroupImpl->GetLocalID() ) ) {
+                      
+                      if(MYDEBUG) MESSAGE( "VSR - SMESH_Gen_i::Save(): saving group with StoreName = "
+                                          << grpName << " to MED file" );
+                      SMESHDS_GroupBase* aGrpBaseDS =
                         myLocMesh.GetGroup( myGroupImpl->GetLocalID() )->GetGroupDS();
-                     aGrpBaseDS->SetStoreName( grpName );
+                      aGrpBaseDS->SetStoreName( grpName );
 
-                     // Pass SMESHDS_Group to MED writer 
-                     SMESHDS_Group* aGrpDS = dynamic_cast<SMESHDS_Group*>( aGrpBaseDS );
+                      // Pass SMESHDS_Group to MED writer 
+                      SMESHDS_Group* aGrpDS = dynamic_cast<SMESHDS_Group*>( aGrpBaseDS );
                       if ( aGrpDS )
                         myWriter.AddGroup( aGrpDS );
-
+                      
                       // write reference on a shape if exists
                       SMESHDS_GroupOnGeom* aGeomGrp =
                         dynamic_cast<SMESHDS_GroupOnGeom*>( aGrpBaseDS );
@@ -1428,53 +2821,120 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                           myWriter.AddGroup( aGeomGrp );
                         }
                       }
-                   }
-                 }
-               }
-               aGroup->CloseOnDisk();
-             }
-           } // loop on groups 
-
-           if ( strcmp( strHasData.c_str(), "1" ) == 0 )
+                    }
+                  }
+                }
+                aGroup->CloseOnDisk();
+              }
+            } // loop on groups 
+            
+            if ( strcmp( strHasData.c_str(), "1" ) == 0 )
             {
               // Flush current mesh information into MED file
-             myWriter.Perform();
-
+              myWriter.Perform();
+              
               // maybe a shape was deleted in the study
-              if ( !shapeRefFound && !mySMESHDSMesh->ShapeToMesh().IsNull() ) {
+              if ( !shapeRefFound && !mySMESHDSMesh->ShapeToMesh().IsNull() && hasShape) {
                 TopoDS_Shape nullShape;
                 myLocMesh.ShapeToMesh( nullShape ); // remove shape referring data
               }
-
-              // Store node positions on sub-shapes (SMDS_Position):
-
+              
               if ( !mySMESHDSMesh->SubMeshes().empty() )
               {
+                // Store submeshes
+                // ----------------
+                aGroup = new HDFgroup( "Submeshes", aTopGroup );
+                aGroup->CreateOnDisk();
+                
+                // each element belongs to one or none submesh,
+                // so for each node/element, we store a submesh ID
+                
+                // Make maps of submesh IDs of elements sorted by element IDs
+                typedef int TElemID;
+                typedef int TSubMID;
+                map< TElemID, TSubMID > eId2smId, nId2smId;
+                map< TElemID, TSubMID >::iterator hint; // insertion to map is done before hint
+                const map<int,SMESHDS_SubMesh*>& aSubMeshes = mySMESHDSMesh->SubMeshes();
+                map<int,SMESHDS_SubMesh*>::const_iterator itSubM ( aSubMeshes.begin() );
+                SMDS_NodeIteratorPtr itNode;
+                SMDS_ElemIteratorPtr itElem;
+                for ( itSubM = aSubMeshes.begin(); itSubM != aSubMeshes.end() ; itSubM++ )
+                {
+                  TSubMID          aSubMeID = itSubM->first;
+                  SMESHDS_SubMesh* aSubMesh = itSubM->second;
+                  if ( aSubMesh->IsComplexSubmesh() )
+                    continue; // submesh containing other submeshs
+                  // nodes
+                  hint = nId2smId.begin(); // optimize insertion basing on increasing order of elem Ids in submesh
+                  for ( itNode = aSubMesh->GetNodes(); itNode->more(); ++hint)
+                    hint = nId2smId.insert( hint, make_pair( itNode->next()->GetID(), aSubMeID ));
+                  // elements
+                  hint = eId2smId.begin();
+                  for ( itElem = aSubMesh->GetElements(); itElem->more(); ++hint)
+                    hint = eId2smId.insert( hint, make_pair( itElem->next()->GetID(), aSubMeID ));
+                }
+                
+                // Care of elements that are not on submeshes
+                if ( mySMESHDSMesh->NbNodes() != nId2smId.size() ) {
+                  for ( itNode = mySMESHDSMesh->nodesIterator(); itNode->more(); )
+                    /*  --- stl_map.h says : */
+                    /*  A %map relies on unique keys and thus a %pair is only inserted if its */
+                    /*  first element (the key) is not already present in the %map.           */
+                    nId2smId.insert( make_pair( itNode->next()->GetID(), 0 ));
+                }
+                int nbElems = mySMESHDSMesh->NbEdges() + mySMESHDSMesh->NbFaces() + mySMESHDSMesh->NbVolumes();
+                if ( nbElems != eId2smId.size() ) {
+                  for ( itElem = mySMESHDSMesh->elementsIterator(); itElem->more(); )
+                    eId2smId.insert( make_pair( itElem->next()->GetID(), 0 ));
+                }
+                
+                // Store submesh IDs
+                for ( int isNode = 0; isNode < 2; ++isNode )
+                {
+                  map< TElemID, TSubMID >& id2smId = isNode ? nId2smId : eId2smId;
+                  if ( id2smId.empty() ) continue;
+                  map< TElemID, TSubMID >::const_iterator id_smId = id2smId.begin();
+                  // make and fill array of submesh IDs
+                  int* smIDs = new int [ id2smId.size() ];
+                  for ( int i = 0; id_smId != id2smId.end(); ++id_smId, ++i )
+                    smIDs[ i ] = id_smId->second;
+                  // write HDF group
+                  aSize[ 0 ] = id2smId.size();
+                  string aDSName( isNode ? "Node Submeshes" : "Element Submeshes");
+                  aDataset = new HDFdataset( (char*)aDSName.c_str(), aGroup, HDF_INT32, aSize, 1 );
+                  aDataset->CreateOnDisk();
+                  aDataset->WriteOnDisk( smIDs );
+                  aDataset->CloseOnDisk();
+                  //
+                  delete smIDs;
+                }
+                
+                // Store node positions on sub-shapes (SMDS_Position):
+                // ----------------------------------------------------
+                
                 aGroup = new HDFgroup( "Node Positions", aTopGroup );
                 aGroup->CreateOnDisk();
-
+                
                 // in aGroup, create 5 datasets to contain:
                 // "Nodes on Edges" - ID of node on edge
                 // "Edge positions" - U parameter on node on edge
                 // "Nodes on Faces" - ID of node on face
                 // "Face U positions" - U parameter of node on face
                 // "Face V positions" - V parameter of node on face
-
+                
                 // Find out nb of nodes on edges and faces
                 // Collect corresponing sub-meshes
                 int nbEdgeNodes = 0, nbFaceNodes = 0;
                 list<SMESHDS_SubMesh*> aEdgeSM, aFaceSM;
                 // loop on SMESHDS_SubMesh'es
-                const map<int,SMESHDS_SubMesh*>& aSubMeshes = mySMESHDSMesh->SubMeshes();
-                map<int,SMESHDS_SubMesh*>::const_iterator itSubM ( aSubMeshes.begin() );
-                for ( ; itSubM != aSubMeshes.end() ; itSubM++ )
+                for ( itSubM = aSubMeshes.begin(); itSubM != aSubMeshes.end() ; itSubM++ )
                 {
                   SMESHDS_SubMesh* aSubMesh = (*itSubM).second;
                   if ( aSubMesh->IsComplexSubmesh() )
                     continue; // submesh containing other submeshs
                   int nbNodes = aSubMesh->NbNodes();
                   if ( nbNodes == 0 ) continue;
-
+                  
                   int aShapeID = (*itSubM).first;
                   int aShapeType = mySMESHDSMesh->IndexToShape( aShapeID ).ShapeType();
                   // write only SMDS_FacePosition and SMDS_EdgePosition
@@ -1500,7 +2960,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                   int* aNodeIDs = new int [ nbNodes ];
                   double* aUPos = new double [ nbNodes ];
                   double* aVPos = ( onFace ? new double[ nbNodes ] : 0 );
-
+                  
                   // Fill arrays
                   // loop on sub-meshes
                   list<SMESHDS_SubMesh*> * pListSM = ( onFace ? &aFaceSM : &aEdgeSM );
@@ -1508,9 +2968,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                   for ( ; itSM != pListSM->end(); itSM++ )
                   {
                     SMESHDS_SubMesh* aSubMesh = (*itSM);
-                    if ( aSubMesh->IsComplexSubmesh() )
-                      continue; // submesh containing other submeshs
-
+                    
                     SMDS_NodeIteratorPtr itNode = aSubMesh->GetNodes();
                     // loop on nodes in aSubMesh
                     while ( itNode->more() )
@@ -1518,7 +2976,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                       //node ID
                       const SMDS_MeshNode* node = itNode->next();
                       aNodeIDs [ iNode ] = node->GetID();
-
+                      
                       // Position
                       const SMDS_PositionPtr pos = node->GetPosition();
                       if ( onFace ) { // on FACE
@@ -1544,7 +3002,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                       }
                     } // loop on nodes in aSubMesh
                   } // loop on sub-meshes
-
+                  
                   // Write datasets
                   if ( nbNodes )
                   {
@@ -1555,7 +3013,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                     aDataset->CreateOnDisk();
                     aDataset->WriteOnDisk( aNodeIDs );
                     aDataset->CloseOnDisk();
-
+                
                     // U Positions
                     aDSName = ( onFace ? "Face U positions" : "Edge positions");
                     aDataset = new HDFdataset( (char*)aDSName.c_str(), aGroup, HDF_FLOAT64, aSize, 1);
@@ -1573,23 +3031,23 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
                   delete [] aNodeIDs;
                   delete [] aUPos;
                   if ( aVPos ) delete [] aVPos;
-
+                  
                 } // treat positions on edges or faces
-
+                
                 // close "Node Positions" group
                 aGroup->CloseOnDisk(); 
-
+                
               } // if ( there are submeshes in SMESHDS_Mesh )
             } // if ( hasData )
-
-           // close mesh HDF group
-           aTopGroup->CloseOnDisk();
-         }
-       }
+            
+            // close mesh HDF group
+            aTopGroup->CloseOnDisk();
+          }
+        }
       }
     }
   }
-
+  
   // close HDF file
   aFile->CloseOnDisk();
   delete aFile;
@@ -1609,16 +3067,29 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent,
 /*!
  *  SMESH_Gen_i::SaveASCII
  *
- *  Save SMESH module's data in ASCII format (not implemented yet)
+ *  Save SMESH module's data in ASCII format
  */
 //=============================================================================
 
 SALOMEDS::TMPFile* SMESH_Gen_i::SaveASCII( SALOMEDS::SComponent_ptr theComponent,
-                                          const char*              theURL,
-                                          bool                     isMultiFile ) {
+                                           const char*              theURL,
+                                           bool                     isMultiFile ) {
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::SaveASCII" );
   SALOMEDS::TMPFile_var aStreamFile = Save( theComponent, theURL, isMultiFile );
   return aStreamFile._retn();
+
+  //after usual saving needs to encipher binary to text string
+  //Any binary symbol will be represent as "|xx" () hexadecimal format number
+  int size = aStreamFile.in().length();
+  _CORBA_Octet* buffer = new _CORBA_Octet[size*3+1];
+  for ( int i = 0; i < size; i++ )
+    sprintf( (char*)&(buffer[i*3]), "|%02x", (char*)(aStreamFile[i]) );
+
+  buffer[size * 3] = '\0';
+
+  SALOMEDS::TMPFile_var anAsciiStreamFile = new SALOMEDS::TMPFile(size*3, size*3, buffer, 1);
+  
+  return anAsciiStreamFile._retn();
 }
 
 //=============================================================================
@@ -1641,6 +3112,31 @@ void SMESH_Gen_i::loadGeomData( SALOMEDS::SComponent_ptr theCompRoot )
   SALOMEDS::StudyBuilder_var aStudyBuilder = aStudy->NewBuilder(); 
   aStudyBuilder->LoadWith( theCompRoot, GetGeomEngine() );
 }
+//=============================================================================
+/*!
+ * \brief Creates SMDS_Position according to shape type
+ */
+//=============================================================================
+
+class PositionCreator {
+public:
+  SMDS_PositionPtr MakePosition(const TopAbs_ShapeEnum type) {
+    return (this->*myFuncTable[ type ])();
+  }
+  PositionCreator() {
+    myFuncTable.resize( (size_t) TopAbs_SHAPE, & PositionCreator::defaultPosition );
+    myFuncTable[ TopAbs_FACE ] = & PositionCreator::facePosition;
+    myFuncTable[ TopAbs_EDGE ] = & PositionCreator::edgePosition;
+    myFuncTable[ TopAbs_VERTEX ] = & PositionCreator::vertexPosition;
+  }
+private:
+  SMDS_PositionPtr edgePosition()    const { return SMDS_PositionPtr( new SMDS_EdgePosition  ); }
+  SMDS_PositionPtr facePosition()    const { return SMDS_PositionPtr( new SMDS_FacePosition  ); }
+  SMDS_PositionPtr vertexPosition()  const { return SMDS_PositionPtr( new SMDS_VertexPosition); }
+  SMDS_PositionPtr defaultPosition() const { return SMDS_SpacePosition::originSpacePosition();  }
+  typedef SMDS_PositionPtr (PositionCreator:: * FmakePos)() const;
+  vector<FmakePos> myFuncTable;
+};
 
 //=============================================================================
 /*!
@@ -1651,9 +3147,9 @@ void SMESH_Gen_i::loadGeomData( SALOMEDS::SComponent_ptr theCompRoot )
 //=============================================================================
 
 bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
-                       const SALOMEDS::TMPFile& theStream,
-                       const char*              theURL,
-                       bool                     isMultiFile )
+                        const SALOMEDS::TMPFile& theStream,
+                        const char*              theURL,
+                        bool                     isMultiFile )
 {
   INFOS( "SMESH_Gen_i::Load" );
 
@@ -1661,23 +3157,28 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
        theComponent->GetStudy()->StudyId() != myCurrentStudy->StudyId() )
     SetCurrentStudy( theComponent->GetStudy() );
 
-/*  if( !theComponent->_is_nil() )
-  {
-    //SALOMEDS::Study_var aStudy = SALOMEDS::Study::_narrow( theComponent->GetStudy() );
-    if( !myCurrentStudy->FindComponent( "GEOM" )->_is_nil() )
+  /*  if( !theComponent->_is_nil() )
+      {
+      //SALOMEDS::Study_var aStudy = SALOMEDS::Study::_narrow( theComponent->GetStudy() );
+      if( !myCurrentStudy->FindComponent( "GEOM" )->_is_nil() )
       loadGeomData( myCurrentStudy->FindComponent( "GEOM" ) );
-  }*/
+      }*/
 
   StudyContext* myStudyContext = GetCurrentStudyContext();
-  
+
   // Get temporary files location
   TCollection_AsciiString tmpDir =
     isMultiFile ? TCollection_AsciiString( ( char* )theURL ) : ( char* )SALOMEDS_Tool::GetTmpDir().c_str();
+    
+    INFOS( "THE URL++++++++++++++" )
+    INFOS( theURL );
+    INFOS( "THE TMP PATH+++++++++" );
+    INFOS( tmpDir );
 
   // Convert the stream into sequence of files to process
   SALOMEDS::ListOfFileNames_var aFileSeq = SALOMEDS_Tool::PutStreamToFiles( theStream,
                                                                             tmpDir.ToCString(),
-                                                                           isMultiFile );
+                                                                            isMultiFile );
   TCollection_AsciiString aStudyName( "" );
   if ( isMultiFile ) 
     aStudyName = ( (char*)SALOMEDS_Tool::GetNameFromPath( myCurrentStudy->URL() ).c_str() );
@@ -1696,7 +3197,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
 
   // Read data
   // ---> open HDF file
-  aFile = new HDFfile( filename.ToCString() );
+  aFile = new HDFfile( (char*) filename.ToCString() );
   try {
     aFile->OpenOnDisk( HDF_RDONLY );
   }
@@ -1708,6 +3209,19 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
   DriverMED_R_SMESHDS_Mesh myReader;
   myReader.SetFile( meshfile.ToCString() );
 
+  // For PAL13473 ("Repetitive mesh") implementation.
+  // New dependencies between SMESH objects are established:
+  // now hypotheses can refer to meshes, shapes and other hypotheses.
+  // To keep data consistent, the following order of data restoration
+  // imposed:
+  // 1. Create hypotheses
+  // 2. Create all meshes
+  // 3. Load hypotheses' data
+  // 4. All the rest
+
+  list< pair< SMESH_Hypothesis_i*, string > >    hypDataList;
+  list< pair< SMESH_Mesh_i*,       HDFgroup* > > meshGroupList;
+
   // get total number of top-level groups
   int aNbGroups = aFile->nInternalObjects(); 
   if ( aNbGroups > 0 ) {
@@ -1720,92 +3234,94 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
       // get number of hypotheses
       int aNbObjects = aTopGroup->nInternalObjects(); 
       for ( int j = 0; j < aNbObjects; j++ ) {
-       // try to identify hypothesis
-       char hypGrpName[ HDF_NAME_MAX_LEN+1 ];
+        // try to identify hypothesis
+        char hypGrpName[ HDF_NAME_MAX_LEN+1 ];
         aTopGroup->InternalObjectIndentify( j, hypGrpName );
 
-       if ( string( hypGrpName ).substr( 0, 10 ) == string( "Hypothesis" ) ) {
-         // open hypothesis group
-         aGroup = new HDFgroup( hypGrpName, aTopGroup ); 
-         aGroup->OpenOnDisk();
-
-         // --> get hypothesis id
-         int    id = atoi( string( hypGrpName ).substr( 10 ).c_str() );
-         string hypname;
-         string libname;
-         string hypdata;
-
-         // get number of datasets
-         int aNbSubObjects = aGroup->nInternalObjects();
-         for ( int k = 0; k < aNbSubObjects; k++ ) {
-           // identify dataset
-           char name_of_subgroup[ HDF_NAME_MAX_LEN+1 ];
-           aGroup->InternalObjectIndentify( k, name_of_subgroup );
-           // --> get hypothesis name
-           if ( strcmp( name_of_subgroup, "Name"  ) == 0 ) {
-             aDataset = new HDFdataset( name_of_subgroup, aGroup );
-             aDataset->OpenOnDisk();
-             size = aDataset->GetSize();
-             char* hypname_str = new char[ size ];
-             aDataset->ReadFromDisk( hypname_str );
-             hypname = string( hypname_str );
-             delete [] hypname_str;
-             aDataset->CloseOnDisk();
-           }
-           // --> get hypothesis plugin library name
-           if ( strcmp( name_of_subgroup, "LibName"  ) == 0 ) {
-             aDataset = new HDFdataset( name_of_subgroup, aGroup );
-             aDataset->OpenOnDisk();
-             size = aDataset->GetSize();
-             char* libname_str = new char[ size ];
-             aDataset->ReadFromDisk( libname_str );
-             if(MYDEBUG) SCRUTE( libname_str );
-             libname = string( libname_str );
-             delete [] libname_str;
-             aDataset->CloseOnDisk();
-           }
-           // --> get hypothesis data
-           if ( strcmp( name_of_subgroup, "Data"  ) == 0 ) {
-             aDataset = new HDFdataset( name_of_subgroup, aGroup );
-             aDataset->OpenOnDisk();
-             size = aDataset->GetSize();
-             char* hypdata_str = new char[ size ];
-             aDataset->ReadFromDisk( hypdata_str );
-             hypdata = string( hypdata_str );
-             delete [] hypdata_str;
-             aDataset->CloseOnDisk();
-           }
-         }
-         // close hypothesis HDF group
-         aGroup->CloseOnDisk();
-
-         // --> restore hypothesis from data
-         if ( id > 0 && !hypname.empty()/* && !hypdata.empty()*/ ) { // VSR : persistent data can be empty
-           if(MYDEBUG) MESSAGE("VSR - load hypothesis : id = " << id <<
-                    ", name = " << hypname.c_str() << ", persistent string = " << hypdata.c_str());
+        if ( string( hypGrpName ).substr( 0, 10 ) == string( "Hypothesis" ) ) {
+          // open hypothesis group
+          aGroup = new HDFgroup( hypGrpName, aTopGroup ); 
+          aGroup->OpenOnDisk();
+
+          // --> get hypothesis id
+          int    id = atoi( string( hypGrpName ).substr( 10 ).c_str() );
+          string hypname;
+          string libname;
+          string hypdata;
+
+          // get number of datasets
+          int aNbSubObjects = aGroup->nInternalObjects();
+          for ( int k = 0; k < aNbSubObjects; k++ ) {
+            // identify dataset
+            char name_of_subgroup[ HDF_NAME_MAX_LEN+1 ];
+            aGroup->InternalObjectIndentify( k, name_of_subgroup );
+            // --> get hypothesis name
+            if ( strcmp( name_of_subgroup, "Name"  ) == 0 ) {
+              aDataset = new HDFdataset( name_of_subgroup, aGroup );
+              aDataset->OpenOnDisk();
+              size = aDataset->GetSize();
+              char* hypname_str = new char[ size ];
+              aDataset->ReadFromDisk( hypname_str );
+              hypname = string( hypname_str );
+              delete [] hypname_str;
+              aDataset->CloseOnDisk();
+            }
+            // --> get hypothesis plugin library name
+            if ( strcmp( name_of_subgroup, "LibName"  ) == 0 ) {
+              aDataset = new HDFdataset( name_of_subgroup, aGroup );
+              aDataset->OpenOnDisk();
+              size = aDataset->GetSize();
+              char* libname_str = new char[ size ];
+              aDataset->ReadFromDisk( libname_str );
+              if(MYDEBUG) SCRUTE( libname_str );
+              libname = string( libname_str );
+              delete [] libname_str;
+              aDataset->CloseOnDisk();
+            }
+            // --> get hypothesis data
+            if ( strcmp( name_of_subgroup, "Data"  ) == 0 ) {
+              aDataset = new HDFdataset( name_of_subgroup, aGroup );
+              aDataset->OpenOnDisk();
+              size = aDataset->GetSize();
+              char* hypdata_str = new char[ size ];
+              aDataset->ReadFromDisk( hypdata_str );
+              hypdata = string( hypdata_str );
+              delete [] hypdata_str;
+              aDataset->CloseOnDisk();
+            }
+          }
+          // close hypothesis HDF group
+          aGroup->CloseOnDisk();
+
+          // --> restore hypothesis from data
+          if ( id > 0 && !hypname.empty()/* && !hypdata.empty()*/ ) { // VSR : persistent data can be empty
+            if(MYDEBUG) MESSAGE("VSR - load hypothesis : id = " << id <<
+                                ", name = " << hypname.c_str() << ", persistent string = " << hypdata.c_str());
             SMESH::SMESH_Hypothesis_var myHyp;
-           
-           try { // protect persistence mechanism against exceptions
-             myHyp = this->createHypothesis( hypname.c_str(), libname.c_str() );
-           }
-           catch (...) {
-             INFOS( "Exception during hypothesis creation" );
-           }
-
-           SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
-           if ( myImpl ) {
-             myImpl->LoadFrom( hypdata.c_str() );
-             string iorString = GetORB()->object_to_string( myHyp );
-             int newId = myStudyContext->findId( iorString );
-             myStudyContext->mapOldToNew( id, newId );
-           }
-           else
-             if(MYDEBUG) MESSAGE( "VSR - SMESH_Gen::Load - can't get servant" );
+
+            try { // protect persistence mechanism against exceptions
+              myHyp = this->createHypothesis( hypname.c_str(), libname.c_str() );
+            }
+            catch (...) {
+              INFOS( "Exception during hypothesis creation" );
+            }
+
+            SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
+            if ( myImpl ) {
+              // myImpl->LoadFrom( hypdata.c_str() );
+              hypDataList.push_back( make_pair( myImpl, hypdata ));
+              string iorString = GetORB()->object_to_string( myHyp );
+              int newId = myStudyContext->findId( iorString );
+              myStudyContext->mapOldToNew( id, newId );
+            }
+            else
+              if(MYDEBUG) MESSAGE( "VSR - SMESH_Gen::Load - can't get servant" );
           }
         }
       }
       // close hypotheses root HDF group
       aTopGroup->CloseOnDisk();
+      aTopGroup = 0;
     }
 
     // --> then we should read&create algorithms
@@ -1817,93 +3333,95 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
       // get number of algorithms
       int aNbObjects = aTopGroup->nInternalObjects(); 
       for ( int j = 0; j < aNbObjects; j++ ) {
-       // try to identify algorithm
-       char hypGrpName[ HDF_NAME_MAX_LEN+1 ];
+        // try to identify algorithm
+        char hypGrpName[ HDF_NAME_MAX_LEN+1 ];
         aTopGroup->InternalObjectIndentify( j, hypGrpName );
 
-       if ( string( hypGrpName ).substr( 0, 9 ) == string( "Algorithm" ) ) {
-         // open algorithm group
-         aGroup = new HDFgroup( hypGrpName, aTopGroup ); 
-         aGroup->OpenOnDisk();
-
-         // --> get algorithm id
-         int    id = atoi( string( hypGrpName ).substr( 9 ).c_str() );
-         string hypname;
-         string libname;
-         string hypdata;
-
-         // get number of datasets
-         int aNbSubObjects = aGroup->nInternalObjects();
-         for ( int k = 0; k < aNbSubObjects; k++ ) {
-           // identify dataset
-           char name_of_subgroup[ HDF_NAME_MAX_LEN+1 ];
-           aGroup->InternalObjectIndentify( k, name_of_subgroup );
-           // --> get algorithm name
-           if ( strcmp( name_of_subgroup, "Name"  ) == 0 ) {
-             aDataset = new HDFdataset( name_of_subgroup, aGroup );
-             aDataset->OpenOnDisk();
-             size = aDataset->GetSize();
-             char* hypname_str = new char[ size ];
-             aDataset->ReadFromDisk( hypname_str );
-             hypname = string( hypname_str );
-             delete [] hypname_str;
-             aDataset->CloseOnDisk();
-           }
-           // --> get algorithm plugin library name
-           if ( strcmp( name_of_subgroup, "LibName"  ) == 0 ) {
-             aDataset = new HDFdataset( name_of_subgroup, aGroup );
-             aDataset->OpenOnDisk();
-             size = aDataset->GetSize();
-             char* libname_str = new char[ size ];
-             aDataset->ReadFromDisk( libname_str );
-             if(MYDEBUG) SCRUTE( libname_str );
-             libname = string( libname_str );
-             delete [] libname_str;
-             aDataset->CloseOnDisk();
-           }
-           // --> get algorithm data
-           if ( strcmp( name_of_subgroup, "Data"  ) == 0 ) {
-             aDataset = new HDFdataset( name_of_subgroup, aGroup );
-             aDataset->OpenOnDisk();
-             size = aDataset->GetSize();
-             char* hypdata_str = new char[ size ];
-             aDataset->ReadFromDisk( hypdata_str );
-             if(MYDEBUG) SCRUTE( hypdata_str );
-             hypdata = string( hypdata_str );
-             delete [] hypdata_str;
-             aDataset->CloseOnDisk();
-           }
-         }
-         // close algorithm HDF group
-         aGroup->CloseOnDisk();
-         
-         // --> restore algorithm from data
-         if ( id > 0 && !hypname.empty()/* && !hypdata.empty()*/ ) { // VSR : persistent data can be empty
-           if(MYDEBUG) MESSAGE("VSR - load algo : id = " << id <<
-                    ", name = " << hypname.c_str() << ", persistent string = " << hypdata.c_str());
+        if ( string( hypGrpName ).substr( 0, 9 ) == string( "Algorithm" ) ) {
+          // open algorithm group
+          aGroup = new HDFgroup( hypGrpName, aTopGroup ); 
+          aGroup->OpenOnDisk();
+
+          // --> get algorithm id
+          int    id = atoi( string( hypGrpName ).substr( 9 ).c_str() );
+          string hypname;
+          string libname;
+          string hypdata;
+
+          // get number of datasets
+          int aNbSubObjects = aGroup->nInternalObjects();
+          for ( int k = 0; k < aNbSubObjects; k++ ) {
+            // identify dataset
+            char name_of_subgroup[ HDF_NAME_MAX_LEN+1 ];
+            aGroup->InternalObjectIndentify( k, name_of_subgroup );
+            // --> get algorithm name
+            if ( strcmp( name_of_subgroup, "Name"  ) == 0 ) {
+              aDataset = new HDFdataset( name_of_subgroup, aGroup );
+              aDataset->OpenOnDisk();
+              size = aDataset->GetSize();
+              char* hypname_str = new char[ size ];
+              aDataset->ReadFromDisk( hypname_str );
+              hypname = string( hypname_str );
+              delete [] hypname_str;
+              aDataset->CloseOnDisk();
+            }
+            // --> get algorithm plugin library name
+            if ( strcmp( name_of_subgroup, "LibName"  ) == 0 ) {
+              aDataset = new HDFdataset( name_of_subgroup, aGroup );
+              aDataset->OpenOnDisk();
+              size = aDataset->GetSize();
+              char* libname_str = new char[ size ];
+              aDataset->ReadFromDisk( libname_str );
+              if(MYDEBUG) SCRUTE( libname_str );
+              libname = string( libname_str );
+              delete [] libname_str;
+              aDataset->CloseOnDisk();
+            }
+            // --> get algorithm data
+            if ( strcmp( name_of_subgroup, "Data"  ) == 0 ) {
+              aDataset = new HDFdataset( name_of_subgroup, aGroup );
+              aDataset->OpenOnDisk();
+              size = aDataset->GetSize();
+              char* hypdata_str = new char[ size ];
+              aDataset->ReadFromDisk( hypdata_str );
+              if(MYDEBUG) SCRUTE( hypdata_str );
+              hypdata = string( hypdata_str );
+              delete [] hypdata_str;
+              aDataset->CloseOnDisk();
+            }
+          }
+          // close algorithm HDF group
+          aGroup->CloseOnDisk();
+
+          // --> restore algorithm from data
+          if ( id > 0 && !hypname.empty()/* && !hypdata.empty()*/ ) { // VSR : persistent data can be empty
+            if(MYDEBUG) MESSAGE("VSR - load algo : id = " << id <<
+                                ", name = " << hypname.c_str() << ", persistent string = " << hypdata.c_str());
             SMESH::SMESH_Hypothesis_var myHyp;
-                   
-           try { // protect persistence mechanism against exceptions
-             myHyp = this->createHypothesis( hypname.c_str(), libname.c_str() );
-           }
-           catch (...) {
-             INFOS( "Exception during hypothesis creation" );
-           }
-           
-           SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
-           if ( myImpl ) {
-             myImpl->LoadFrom( hypdata.c_str() );
-             string iorString = GetORB()->object_to_string( myHyp );
-             int newId = myStudyContext->findId( iorString );
-             myStudyContext->mapOldToNew( id, newId );
-           }
-           else
-             if(MYDEBUG) MESSAGE( "VSR - SMESH_Gen::Load - can't get servant" );
+
+            try { // protect persistence mechanism against exceptions
+              myHyp = this->createHypothesis( hypname.c_str(), libname.c_str() );
+            }
+            catch (...) {
+              INFOS( "Exception during hypothesis creation" );
+            }
+
+            SMESH_Hypothesis_i* myImpl = dynamic_cast<SMESH_Hypothesis_i*>( GetServant( myHyp ).in() );
+            if ( myImpl ) {
+              //myImpl->LoadFrom( hypdata.c_str() );
+              hypDataList.push_back( make_pair( myImpl, hypdata ));
+              string iorString = GetORB()->object_to_string( myHyp );
+              int newId = myStudyContext->findId( iorString );
+              myStudyContext->mapOldToNew( id, newId );
+            }
+            else
+              if(MYDEBUG) MESSAGE( "VSR - SMESH_Gen::Load - can't get servant" );
           }
         }
       }
       // close algorithms root HDF group
       aTopGroup->CloseOnDisk();
+      aTopGroup = 0;
     }
 
     // --> the rest groups should be meshes
@@ -1913,540 +3431,696 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
       aFile->InternalObjectIndentify( i, meshName );
 
       if ( string( meshName ).substr( 0, 4 ) == string( "Mesh" ) ) {
-       // --> get mesh id
-       int id = atoi( string( meshName ).substr( 4 ).c_str() );
-       if ( id <= 0 )
-         continue;
-
-       bool hasData = false;
-
-       // open mesh HDF group
-       aTopGroup = new HDFgroup( meshName, aFile ); 
-       aTopGroup->OpenOnDisk();
-
-       // get number of child HDF objects
-       int aNbObjects = aTopGroup->nInternalObjects(); 
-       if ( aNbObjects > 0 ) {
-         // create mesh
-         if(MYDEBUG) MESSAGE( "VSR - load mesh : id = " << id );
-         SMESH::SMESH_Mesh_var myNewMesh = this->createMesh();
-         SMESH_Mesh_i* myNewMeshImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( myNewMesh ).in() );
+        // --> get mesh id
+        int id = atoi( string( meshName ).substr( 4 ).c_str() );
+        if ( id <= 0 )
+          continue;
+
+        // open mesh HDF group
+        aTopGroup = new HDFgroup( meshName, aFile ); 
+        aTopGroup->OpenOnDisk();
+
+        // get number of child HDF objects
+        int aNbObjects = aTopGroup->nInternalObjects(); 
+        if ( aNbObjects > 0 ) {
+          // create mesh
+          if(MYDEBUG) MESSAGE( "VSR - load mesh : id = " << id );
+          SMESH::SMESH_Mesh_var myNewMesh = this->createMesh();
+          SMESH_Mesh_i* myNewMeshImpl = dynamic_cast<SMESH_Mesh_i*>( GetServant( myNewMesh ).in() );
           if ( !myNewMeshImpl )
-           continue;
-         string iorString = GetORB()->object_to_string( myNewMesh );
-         int newId = myStudyContext->findId( iorString );
-         myStudyContext->mapOldToNew( id, newId );
-         
-         ::SMESH_Mesh& myLocMesh = myNewMeshImpl->GetImpl();
-         SMESHDS_Mesh* mySMESHDSMesh = myLocMesh.GetMeshDS();
-
-         // try to find mesh data dataset
-         if ( aTopGroup->ExistInternalObject( "Has data" ) ) {
-           // load mesh "has data" flag
-           aDataset = new HDFdataset( "Has data", aTopGroup );
-           aDataset->OpenOnDisk();
-           size = aDataset->GetSize();
-           char* strHasData = new char[ size ];
-           aDataset->ReadFromDisk( strHasData );
-           aDataset->CloseOnDisk();
-           if ( strcmp( strHasData, "1") == 0 ) {
-             // read mesh data from MED file
-             myReader.SetMesh( mySMESHDSMesh );
-             myReader.SetMeshId( id );
-             myReader.Perform();
-             hasData = true;
-           }
-         }
-
-         // try to read and set reference to shape
-         GEOM::GEOM_Object_var aShapeObject;
-         if ( aTopGroup->ExistInternalObject( "Ref on shape" ) ) {
-           // load mesh "Ref on shape" - it's an entry to SObject
-           aDataset = new HDFdataset( "Ref on shape", aTopGroup );
-           aDataset->OpenOnDisk();
-           size = aDataset->GetSize();
-           char* refFromFile = new char[ size ];
-           aDataset->ReadFromDisk( refFromFile );
-           aDataset->CloseOnDisk();
-           if ( strlen( refFromFile ) > 0 ) {
-             SALOMEDS::SObject_var shapeSO = myCurrentStudy->FindObjectID( refFromFile );
-
-             // Make sure GEOM data are loaded first
-             //loadGeomData( shapeSO->GetFatherComponent() );
-
-             CORBA::Object_var shapeObject = SObjectToObject( shapeSO );
-             if ( !CORBA::is_nil( shapeObject ) ) {
-               aShapeObject = GEOM::GEOM_Object::_narrow( shapeObject );
-               if ( !aShapeObject->_is_nil() )
-                 myNewMeshImpl->SetShape( aShapeObject );
-             }
-           }
-         }
-
-         // try to get applied algorithms
-         if ( aTopGroup->ExistInternalObject( "Applied Algorithms" ) ) {
-           aGroup = new HDFgroup( "Applied Algorithms", aTopGroup );
-           aGroup->OpenOnDisk();
-           // get number of applied algorithms
-           int aNbSubObjects = aGroup->nInternalObjects(); 
-           if(MYDEBUG) MESSAGE( "VSR - number of applied algos " << aNbSubObjects );
-           for ( int j = 0; j < aNbSubObjects; j++ ) {
-             char name_dataset[ HDF_NAME_MAX_LEN+1 ];
-             aGroup->InternalObjectIndentify( j, name_dataset );
-             // check if it is an algorithm
-             if ( string( name_dataset ).substr( 0, 4 ) == string( "Algo" ) ) {
-               aDataset = new HDFdataset( name_dataset, aGroup );
-               aDataset->OpenOnDisk();
-               size = aDataset->GetSize();
-               char* refFromFile = new char[ size ];
-               aDataset->ReadFromDisk( refFromFile );
-               aDataset->CloseOnDisk();
-
-               // san - it is impossible to recover applied algorithms using their entries within Load() method
-               
-               //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
-               //CORBA::Object_var hypObject = SObjectToObject( hypSO );
-               int id = atoi( refFromFile );
-               string anIOR = myStudyContext->getIORbyOldId( id );
-               if ( !anIOR.empty() ) {
-                 CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
-                 if ( !CORBA::is_nil( hypObject ) ) {
-                   SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
-                   if ( !anHyp->_is_nil() && !aShapeObject->_is_nil() )
-                     myNewMeshImpl->addHypothesis( aShapeObject, anHyp );
-                 }
-               }
-             }
-           }
-           aGroup->CloseOnDisk();
-         }
-
-         // try to get applied hypotheses
-         if ( aTopGroup->ExistInternalObject( "Applied Hypotheses" ) ) {
-           aGroup = new HDFgroup( "Applied Hypotheses", aTopGroup );
-           aGroup->OpenOnDisk();
-           // get number of applied hypotheses
-           int aNbSubObjects = aGroup->nInternalObjects(); 
-           for ( int j = 0; j < aNbSubObjects; j++ ) {
-             char name_dataset[ HDF_NAME_MAX_LEN+1 ];
-             aGroup->InternalObjectIndentify( j, name_dataset );
-             // check if it is a hypothesis
-             if ( string( name_dataset ).substr( 0, 3 ) == string( "Hyp" ) ) {
-               aDataset = new HDFdataset( name_dataset, aGroup );
-               aDataset->OpenOnDisk();
-               size = aDataset->GetSize();
-               char* refFromFile = new char[ size ];
-               aDataset->ReadFromDisk( refFromFile );
-               aDataset->CloseOnDisk();
-
-               // san - it is impossible to recover applied hypotheses using their entries within Load() method
-               
-               //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
-               //CORBA::Object_var hypObject = SObjectToObject( hypSO );
-               int id = atoi( refFromFile );
-               string anIOR = myStudyContext->getIORbyOldId( id );
-               if ( !anIOR.empty() ) {
-                 CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
-                 if ( !CORBA::is_nil( hypObject ) ) {
-                   SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
-                   if ( !anHyp->_is_nil() && !aShapeObject->_is_nil() )
-                     myNewMeshImpl->addHypothesis( aShapeObject, anHyp );
-                 }
-               }
-             }
-           }
-           aGroup->CloseOnDisk();
-         }
-
-         // --> try to find submeshes containers for each type of submesh
-         for ( int j = GetSubMeshOnVertexTag(); j <= GetSubMeshOnCompoundTag(); j++ ) {
-           char name_meshgroup[ 30 ];
-           if ( j == GetSubMeshOnVertexTag() )
-             strcpy( name_meshgroup, "SubMeshes On Vertex" );
-           else if ( j == GetSubMeshOnEdgeTag() )
-             strcpy( name_meshgroup, "SubMeshes On Edge" );
-           else if ( j == GetSubMeshOnWireTag() )
-             strcpy( name_meshgroup, "SubMeshes On Wire" );
-           else if ( j == GetSubMeshOnFaceTag() )
-             strcpy( name_meshgroup, "SubMeshes On Face" );
-           else if ( j == GetSubMeshOnShellTag() )
-             strcpy( name_meshgroup, "SubMeshes On Shell" );
-           else if ( j == GetSubMeshOnSolidTag() )
-             strcpy( name_meshgroup, "SubMeshes On Solid" );
-           else if ( j == GetSubMeshOnCompoundTag() )
-             strcpy( name_meshgroup, "SubMeshes On Compound" );
-           
-           // try to get submeshes container HDF group
-           if ( aTopGroup->ExistInternalObject( name_meshgroup ) ) {
-             // open submeshes containers HDF group
-             aGroup = new HDFgroup( name_meshgroup, aTopGroup );
-             aGroup->OpenOnDisk();
-             
-             // get number of submeshes
-             int aNbSubMeshes = aGroup->nInternalObjects(); 
-             for ( int k = 0; k < aNbSubMeshes; k++ ) {
-               // identify submesh
-               char name_submeshgroup[ HDF_NAME_MAX_LEN+1 ];
-               aGroup->InternalObjectIndentify( k, name_submeshgroup );
-               if ( string( name_submeshgroup ).substr( 0, 7 ) == string( "SubMesh" )  ) {
-                 // --> get submesh id
-                 int subid = atoi( string( name_submeshgroup ).substr( 7 ).c_str() );
-                 if ( subid <= 0 )
-                   continue;
-                 // open submesh HDF group
-                 aSubGroup = new HDFgroup( name_submeshgroup, aGroup );
-                 aSubGroup->OpenOnDisk();
-                 
-                 // try to read and set reference to subshape
-                 GEOM::GEOM_Object_var aSubShapeObject;
-                 SMESH::SMESH_subMesh_var aSubMesh;
-
-                 if ( aSubGroup->ExistInternalObject( "Ref on shape" ) ) {
-                   // load submesh "Ref on shape" - it's an entry to SObject
-                   aDataset = new HDFdataset( "Ref on shape", aSubGroup );
-                   aDataset->OpenOnDisk();
-                   size = aDataset->GetSize();
-                   char* refFromFile = new char[ size ];
-                   aDataset->ReadFromDisk( refFromFile );
-                   aDataset->CloseOnDisk();
-                   if ( strlen( refFromFile ) > 0 ) {
-                     SALOMEDS::SObject_var subShapeSO = myCurrentStudy->FindObjectID( refFromFile );
-                     CORBA::Object_var subShapeObject = SObjectToObject( subShapeSO );
-                     if ( !CORBA::is_nil( subShapeObject ) ) {
-                       aSubShapeObject = GEOM::GEOM_Object::_narrow( subShapeObject );
-                       if ( !aSubShapeObject->_is_nil() )
-                         aSubMesh = SMESH::SMESH_subMesh::_duplicate
-                            ( myNewMeshImpl->createSubMesh( aSubShapeObject ) );
-                       if ( aSubMesh->_is_nil() )
-                         continue;
-                       string iorSubString = GetORB()->object_to_string( aSubMesh );
-                       int newSubId = myStudyContext->findId( iorSubString );
-                       myStudyContext->mapOldToNew( subid, newSubId );
-                     }
-                   }
-                 }
-                 
-                 if ( aSubMesh->_is_nil() )
-                   continue;
-
-                 // VSR: Get submesh data from MED convertor
-//               int anInternalSubmeshId = aSubMesh->GetId(); // this is not a persistent ID, it's an internal one computed from sub-shape
-//               if (myNewMeshImpl->_mapSubMesh.find(anInternalSubmeshId) != myNewMeshImpl->_mapSubMesh.end()) {
-//                 if(MYDEBUG) MESSAGE("VSR - SMESH_Gen_i::Load(): loading from MED file submesh with ID = " <<
-//                            subid << " for subshape # " << anInternalSubmeshId);
-//                 SMESHDS_SubMesh* aSubMeshDS =
-//                      myNewMeshImpl->_mapSubMesh[anInternalSubmeshId]->CreateSubMeshDS();
-//                 if ( !aSubMeshDS ) {
-//                   if(MYDEBUG) MESSAGE("VSR - SMESH_Gen_i::Load(): FAILED to create a submesh for subshape # " <<
-//                              anInternalSubmeshId << " in current mesh!");
-//                 }
-//                 else
-//                   myReader.GetSubMesh( aSubMeshDS, subid );
-//               }
-                   
-                 // try to get applied algorithms
-                 if ( aSubGroup->ExistInternalObject( "Applied Algorithms" ) ) {
-                   // open "applied algorithms" HDF group
-                   aSubSubGroup = new HDFgroup( "Applied Algorithms", aSubGroup );
-                   aSubSubGroup->OpenOnDisk();
-                   // get number of applied algorithms
-                   int aNbSubObjects = aSubSubGroup->nInternalObjects(); 
-                   for ( int l = 0; l < aNbSubObjects; l++ ) {
-                     char name_dataset[ HDF_NAME_MAX_LEN+1 ];
-                     aSubSubGroup->InternalObjectIndentify( l, name_dataset );
-                     // check if it is an algorithm
-                     if ( string( name_dataset ).substr( 0, 4 ) == string( "Algo" ) ) {
-                       aDataset = new HDFdataset( name_dataset, aSubSubGroup );
-                       aDataset->OpenOnDisk();
-                       size = aDataset->GetSize();
-                       char* refFromFile = new char[ size ];
-                       aDataset->ReadFromDisk( refFromFile );
-                       aDataset->CloseOnDisk();
-
-                       //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
-                       //CORBA::Object_var hypObject = SObjectToObject( hypSO );
-                       int id = atoi( refFromFile );
-                       string anIOR = myStudyContext->getIORbyOldId( id );
-                       if ( !anIOR.empty() ) {
-                         CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
-                         if ( !CORBA::is_nil( hypObject ) ) {
-                           SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
-                           if ( !anHyp->_is_nil() && !aShapeObject->_is_nil() )
-                             myNewMeshImpl->addHypothesis( aSubShapeObject, anHyp );
-                         }
-                       }
-                     }
-                   }
-                   // close "applied algorithms" HDF group
-                   aSubSubGroup->CloseOnDisk();
-                 }
-                 
-                 // try to get applied hypotheses
-                 if ( aSubGroup->ExistInternalObject( "Applied Hypotheses" ) ) {
-                   // open "applied hypotheses" HDF group
-                   aSubSubGroup = new HDFgroup( "Applied Hypotheses", aSubGroup );
-                   aSubSubGroup->OpenOnDisk();
-                   // get number of applied hypotheses
-                   int aNbSubObjects = aSubSubGroup->nInternalObjects(); 
-                   for ( int l = 0; l < aNbSubObjects; l++ ) {
-                     char name_dataset[ HDF_NAME_MAX_LEN+1 ];
-                     aSubSubGroup->InternalObjectIndentify( l, name_dataset );
-                     // check if it is a hypothesis
-                     if ( string( name_dataset ).substr( 0, 3 ) == string( "Hyp" ) ) {
-                       aDataset = new HDFdataset( name_dataset, aSubSubGroup );
-                       aDataset->OpenOnDisk();
-                       size = aDataset->GetSize();
-                       char* refFromFile = new char[ size ];
-                       aDataset->ReadFromDisk( refFromFile );
-                       aDataset->CloseOnDisk();
-                       
-                       //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
-                       //CORBA::Object_var hypObject = SObjectToObject( hypSO );
-                       int id = atoi( refFromFile );
-                       string anIOR = myStudyContext->getIORbyOldId( id );
-                       if ( !anIOR.empty() ) {
-                         CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
-                         if ( !CORBA::is_nil( hypObject ) ) {
-                           SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
-                           if ( !anHyp->_is_nil() && !aShapeObject->_is_nil() )
-                             myNewMeshImpl->addHypothesis( aSubShapeObject, anHyp );
-                         }
-                       }
-                     }
-                   }
-                   // close "applied hypotheses" HDF group
-                   aSubSubGroup->CloseOnDisk();
-                 }
-
-                 // close submesh HDF group
-                 aSubGroup->CloseOnDisk();
-               }
-             }
-             // close submeshes containers HDF group
-             aGroup->CloseOnDisk();
-           }
-         }
-
-         if(hasData) {
-           // Read sub-meshes from MED
-           if(MYDEBUG) MESSAGE("Create all sub-meshes");
-           myReader.CreateAllSubMeshes();
-
-
-            // Read node positions on sub-shapes (SMDS_Position)
-
-            if ( aTopGroup->ExistInternalObject( "Node Positions" ))
-            {
-              // There are 5 datasets to read:
-              // "Nodes on Edges" - ID of node on edge
-              // "Edge positions" - U parameter on node on edge
-              // "Nodes on Faces" - ID of node on face
-              // "Face U positions" - U parameter of node on face
-              // "Face V positions" - V parameter of node on face
-              char* aEid_DSName = "Nodes on Edges";
-              char* aEu_DSName  = "Edge positions";
-              char* aFu_DSName  = "Face U positions";
-              //char* aFid_DSName = "Nodes on Faces";
-              //char* aFv_DSName  = "Face V positions";
-
-              // data to retrieve
-              int nbEids = 0, nbFids = 0;
-              int *aEids = 0, *aFids  = 0;
-              double *aEpos = 0, *aFupos = 0, *aFvpos = 0;
-
-              // open a group
-              aGroup = new HDFgroup( "Node Positions", aTopGroup ); 
-              aGroup->OpenOnDisk();
-
-              // loop on 5 data sets
-              int aNbObjects = aGroup->nInternalObjects();
-              for ( int i = 0; i < aNbObjects; i++ )
-              {
-                // identify dataset
-                char aDSName[ HDF_NAME_MAX_LEN+1 ];
-                aGroup->InternalObjectIndentify( i, aDSName );
-                // read data
-                aDataset = new HDFdataset( aDSName, aGroup );
+            continue;
+          meshGroupList.push_back( make_pair( myNewMeshImpl, aTopGroup ));
+
+          string iorString = GetORB()->object_to_string( myNewMesh );
+          int newId = myStudyContext->findId( iorString );
+          myStudyContext->mapOldToNew( id, newId );
+
+          // ouv : NPAL12872
+          // try to read and set auto color flag
+          char aMeshAutoColorName[ 30 ];
+          sprintf( aMeshAutoColorName, "AutoColorMesh %d", id);
+          if( aTopGroup->ExistInternalObject( aMeshAutoColorName ) )
+          {
+            aDataset = new HDFdataset( aMeshAutoColorName, aTopGroup );
+            aDataset->OpenOnDisk();
+            size = aDataset->GetSize();
+            int* anAutoColor = new int[ size ];
+            aDataset->ReadFromDisk( anAutoColor );
+            aDataset->CloseOnDisk();
+            myNewMeshImpl->SetAutoColor( (bool)anAutoColor[0] );
+          }
+
+          // try to read and set reference to shape
+          GEOM::GEOM_Object_var aShapeObject;
+          if ( aTopGroup->ExistInternalObject( "Ref on shape" ) ) {
+            // load mesh "Ref on shape" - it's an entry to SObject
+            aDataset = new HDFdataset( "Ref on shape", aTopGroup );
+            aDataset->OpenOnDisk();
+            size = aDataset->GetSize();
+            char* refFromFile = new char[ size ];
+            aDataset->ReadFromDisk( refFromFile );
+            aDataset->CloseOnDisk();
+            if ( strlen( refFromFile ) > 0 ) {
+              SALOMEDS::SObject_var shapeSO = myCurrentStudy->FindObjectID( refFromFile );
+
+              // Make sure GEOM data are loaded first
+              //loadGeomData( shapeSO->GetFatherComponent() );
+
+              CORBA::Object_var shapeObject = SObjectToObject( shapeSO );
+              if ( !CORBA::is_nil( shapeObject ) ) {
+                aShapeObject = GEOM::GEOM_Object::_narrow( shapeObject );
+                if ( !aShapeObject->_is_nil() )
+                  myNewMeshImpl->SetShape( aShapeObject );
+              }
+            }
+          }
+
+        }
+      }
+    }
+
+    // As all object that can be referred by hypothesis are created,
+    // we can restore hypothesis data
+
+    list< pair< SMESH_Hypothesis_i*, string > >::iterator hyp_data;
+    for ( hyp_data = hypDataList.begin(); hyp_data != hypDataList.end(); ++hyp_data )
+    {
+      SMESH_Hypothesis_i* hyp  = hyp_data->first;
+      string &            data = hyp_data->second;
+      hyp->LoadFrom( data.c_str() );
+    }
+
+    // Restore the rest mesh data
+
+    list< pair< SMESH_Mesh_i*, HDFgroup* > >::iterator meshi_group;
+    for ( meshi_group = meshGroupList.begin(); meshi_group != meshGroupList.end(); ++meshi_group )
+    {
+      aTopGroup                   = meshi_group->second;
+      SMESH_Mesh_i* myNewMeshImpl = meshi_group->first;
+      ::SMESH_Mesh& myLocMesh     = myNewMeshImpl->GetImpl();
+      SMESHDS_Mesh* mySMESHDSMesh = myLocMesh.GetMeshDS();
+
+      GEOM::GEOM_Object_var aShapeObject = myNewMeshImpl->GetShapeToMesh();
+      bool hasData = false;
+
+      // get mesh old id
+      string iorString = GetORB()->object_to_string( myNewMeshImpl->_this() );
+      int newId = myStudyContext->findId( iorString );
+      int id = myStudyContext->getOldId( newId );
+
+      // try to find mesh data dataset
+      if ( aTopGroup->ExistInternalObject( "Has data" ) ) {
+        // load mesh "has data" flag
+        aDataset = new HDFdataset( "Has data", aTopGroup );
+        aDataset->OpenOnDisk();
+        size = aDataset->GetSize();
+        char* strHasData = new char[ size ];
+        aDataset->ReadFromDisk( strHasData );
+        aDataset->CloseOnDisk();
+        if ( strcmp( strHasData, "1") == 0 ) {
+          // read mesh data from MED file
+          myReader.SetMesh( mySMESHDSMesh );
+          myReader.SetMeshId( id );
+          myReader.Perform();
+          hasData = true;
+        }
+      }
+
+      // try to get applied algorithms
+      if ( aTopGroup->ExistInternalObject( "Applied Algorithms" ) ) {
+        aGroup = new HDFgroup( "Applied Algorithms", aTopGroup );
+        aGroup->OpenOnDisk();
+        // get number of applied algorithms
+        int aNbSubObjects = aGroup->nInternalObjects(); 
+        if(MYDEBUG) MESSAGE( "VSR - number of applied algos " << aNbSubObjects );
+        for ( int j = 0; j < aNbSubObjects; j++ ) {
+          char name_dataset[ HDF_NAME_MAX_LEN+1 ];
+          aGroup->InternalObjectIndentify( j, name_dataset );
+          // check if it is an algorithm
+          if ( string( name_dataset ).substr( 0, 4 ) == string( "Algo" ) ) {
+            aDataset = new HDFdataset( name_dataset, aGroup );
+            aDataset->OpenOnDisk();
+            size = aDataset->GetSize();
+            char* refFromFile = new char[ size ];
+            aDataset->ReadFromDisk( refFromFile );
+            aDataset->CloseOnDisk();
+
+            // san - it is impossible to recover applied algorithms using their entries within Load() method
+
+            //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
+            //CORBA::Object_var hypObject = SObjectToObject( hypSO );
+            int id = atoi( refFromFile );
+            string anIOR = myStudyContext->getIORbyOldId( id );
+            if ( !anIOR.empty() ) {
+              CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
+              if ( !CORBA::is_nil( hypObject ) ) {
+                SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
+                if ( !anHyp->_is_nil() && (!aShapeObject->_is_nil()
+                                           || !myNewMeshImpl->HasShapeToMesh()) )
+                  myNewMeshImpl->addHypothesis( aShapeObject, anHyp );
+              }
+            }
+          }
+        }
+        aGroup->CloseOnDisk();
+      }
+
+      // try to get applied hypotheses
+      if ( aTopGroup->ExistInternalObject( "Applied Hypotheses" ) ) {
+        aGroup = new HDFgroup( "Applied Hypotheses", aTopGroup );
+        aGroup->OpenOnDisk();
+        // get number of applied hypotheses
+        int aNbSubObjects = aGroup->nInternalObjects(); 
+        for ( int j = 0; j < aNbSubObjects; j++ ) {
+          char name_dataset[ HDF_NAME_MAX_LEN+1 ];
+          aGroup->InternalObjectIndentify( j, name_dataset );
+          // check if it is a hypothesis
+          if ( string( name_dataset ).substr( 0, 3 ) == string( "Hyp" ) ) {
+            aDataset = new HDFdataset( name_dataset, aGroup );
+            aDataset->OpenOnDisk();
+            size = aDataset->GetSize();
+            char* refFromFile = new char[ size ];
+            aDataset->ReadFromDisk( refFromFile );
+            aDataset->CloseOnDisk();
+
+            // san - it is impossible to recover applied hypotheses using their entries within Load() method
+
+            //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
+            //CORBA::Object_var hypObject = SObjectToObject( hypSO );
+            int id = atoi( refFromFile );
+            string anIOR = myStudyContext->getIORbyOldId( id );
+            if ( !anIOR.empty() ) {
+              CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
+              if ( !CORBA::is_nil( hypObject ) ) {
+                SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
+                if ( !anHyp->_is_nil() && (!aShapeObject->_is_nil()
+                                           || !myNewMeshImpl->HasShapeToMesh()) )
+                  myNewMeshImpl->addHypothesis( aShapeObject, anHyp );
+              }
+            }
+          }
+        }
+        aGroup->CloseOnDisk();
+      }
+
+      // --> try to find submeshes containers for each type of submesh
+      for ( int j = GetSubMeshOnVertexTag(); j <= GetSubMeshOnCompoundTag(); j++ ) {
+        char name_meshgroup[ 30 ];
+        if ( j == GetSubMeshOnVertexTag() )
+          strcpy( name_meshgroup, "SubMeshes On Vertex" );
+        else if ( j == GetSubMeshOnEdgeTag() )
+          strcpy( name_meshgroup, "SubMeshes On Edge" );
+        else if ( j == GetSubMeshOnWireTag() )
+          strcpy( name_meshgroup, "SubMeshes On Wire" );
+        else if ( j == GetSubMeshOnFaceTag() )
+          strcpy( name_meshgroup, "SubMeshes On Face" );
+        else if ( j == GetSubMeshOnShellTag() )
+          strcpy( name_meshgroup, "SubMeshes On Shell" );
+        else if ( j == GetSubMeshOnSolidTag() )
+          strcpy( name_meshgroup, "SubMeshes On Solid" );
+        else if ( j == GetSubMeshOnCompoundTag() )
+          strcpy( name_meshgroup, "SubMeshes On Compound" );
+
+        // try to get submeshes container HDF group
+        if ( aTopGroup->ExistInternalObject( name_meshgroup ) ) {
+          // open submeshes containers HDF group
+          aGroup = new HDFgroup( name_meshgroup, aTopGroup );
+          aGroup->OpenOnDisk();
+
+          // get number of submeshes
+          int aNbSubMeshes = aGroup->nInternalObjects(); 
+          for ( int k = 0; k < aNbSubMeshes; k++ ) {
+            // identify submesh
+            char name_submeshgroup[ HDF_NAME_MAX_LEN+1 ];
+            aGroup->InternalObjectIndentify( k, name_submeshgroup );
+            if ( string( name_submeshgroup ).substr( 0, 7 ) == string( "SubMesh" )  ) {
+              // --> get submesh id
+              int subid = atoi( string( name_submeshgroup ).substr( 7 ).c_str() );
+              if ( subid <= 0 )
+                continue;
+              // open submesh HDF group
+              aSubGroup = new HDFgroup( name_submeshgroup, aGroup );
+              aSubGroup->OpenOnDisk();
+
+              // try to read and set reference to subshape
+              GEOM::GEOM_Object_var aSubShapeObject;
+              SMESH::SMESH_subMesh_var aSubMesh;
+
+              if ( aSubGroup->ExistInternalObject( "Ref on shape" ) ) {
+                // load submesh "Ref on shape" - it's an entry to SObject
+                aDataset = new HDFdataset( "Ref on shape", aSubGroup );
                 aDataset->OpenOnDisk();
-                if ( aDataset->GetType() == HDF_FLOAT64 ) // Positions
-                {
-                  double* pos = new double [ aDataset->GetSize() ];
-                  aDataset->ReadFromDisk( pos );
-                  // which one?
-                  if ( strncmp( aDSName, aEu_DSName, strlen( aEu_DSName )) == 0 )
-                    aEpos = pos;
-                  else if ( strncmp( aDSName, aFu_DSName, strlen( aFu_DSName )) == 0 )
-                    aFupos = pos;
-                  else
-                    aFvpos = pos;
-                }
-                else // NODE IDS
-                {
-                 int aSize = aDataset->GetSize();
-
-                  // for reading files, created from 18.07.2005 till 10.10.2005
-                  if (aDataset->GetType() == HDF_STRING)
-                    aSize /= sizeof(int);
-
-                 int* ids = new int [aSize];
-                  aDataset->ReadFromDisk( ids );
-                  // on face or nodes?
-                  if ( strncmp( aDSName, aEid_DSName, strlen( aEid_DSName )) == 0 ) {
-                    aEids = ids;
-                    nbEids = aSize;
-                  }
-                  else {
-                    aFids = ids;
-                    nbFids = aSize;
+                size = aDataset->GetSize();
+                char* refFromFile = new char[ size ];
+                aDataset->ReadFromDisk( refFromFile );
+                aDataset->CloseOnDisk();
+                if ( strlen( refFromFile ) > 0 ) {
+                  SALOMEDS::SObject_var subShapeSO = myCurrentStudy->FindObjectID( refFromFile );
+                  CORBA::Object_var subShapeObject = SObjectToObject( subShapeSO );
+                  if ( !CORBA::is_nil( subShapeObject ) ) {
+                    aSubShapeObject = GEOM::GEOM_Object::_narrow( subShapeObject );
+                    if ( !aSubShapeObject->_is_nil() )
+                      aSubMesh = SMESH::SMESH_subMesh::_duplicate
+                        ( myNewMeshImpl->createSubMesh( aSubShapeObject ) );
+                    if ( aSubMesh->_is_nil() )
+                      continue;
+                    string iorSubString = GetORB()->object_to_string( aSubMesh );
+                    int newSubId = myStudyContext->findId( iorSubString );
+                    myStudyContext->mapOldToNew( subid, newSubId );
                   }
                 }
-              } // loop on 5 datasets
+              }
 
-              // Set node positions on edges or faces
-              for ( int onFace = 0; onFace < 2; onFace++ )
-              {
-                int nbNodes = ( onFace ? nbFids : nbEids );
-                if ( nbNodes == 0 ) continue;
-                int* aNodeIDs = ( onFace ? aFids : aEids );
-                double* aUPos = ( onFace ? aFupos : aEpos );
-                double* aVPos = ( onFace ? aFvpos : 0 );
-                // loop on node IDs
-                for ( int iNode = 0; iNode < nbNodes; iNode++ )
-                {
-                  const SMDS_MeshNode* node = mySMESHDSMesh->FindNode( aNodeIDs[ iNode ]);
-                  ASSERT( node );
-                  SMDS_PositionPtr aPos = node->GetPosition();
-                  ASSERT( aPos )
-                  if ( onFace ) {
-                    ASSERT( aPos->GetTypeOfPosition() == SMDS_TOP_FACE );
-                    SMDS_FacePosition* fPos = const_cast<SMDS_FacePosition*>
-                      ( static_cast<const SMDS_FacePosition*>( aPos.get() ));
-                    fPos->SetUParameter( aUPos[ iNode ]);
-                    fPos->SetVParameter( aVPos[ iNode ]);
-                  }
-                  else {
-                    ASSERT( aPos->GetTypeOfPosition() == SMDS_TOP_EDGE );
-                    SMDS_EdgePosition* fPos = const_cast<SMDS_EdgePosition*>
-                      ( static_cast<const SMDS_EdgePosition*>( aPos.get() ));
-                    fPos->SetUParameter( aUPos[ iNode ]);
+              if ( aSubMesh->_is_nil() )
+                continue;
+
+              // VSR: Get submesh data from MED convertor
+              //                  int anInternalSubmeshId = aSubMesh->GetId(); // this is not a persistent ID, it's an internal one computed from sub-shape
+              //                  if (myNewMeshImpl->_mapSubMesh.find(anInternalSubmeshId) != myNewMeshImpl->_mapSubMesh.end()) {
+              //                    if(MYDEBUG) MESSAGE("VSR - SMESH_Gen_i::Load(): loading from MED file submesh with ID = " <<
+              //                            subid << " for subshape # " << anInternalSubmeshId);
+              //                    SMESHDS_SubMesh* aSubMeshDS =
+              //                      myNewMeshImpl->_mapSubMesh[anInternalSubmeshId]->CreateSubMeshDS();
+              //                    if ( !aSubMeshDS ) {
+              //                      if(MYDEBUG) MESSAGE("VSR - SMESH_Gen_i::Load(): FAILED to create a submesh for subshape # " <<
+              //                              anInternalSubmeshId << " in current mesh!");
+              //                    }
+              //                    else
+              //                      myReader.GetSubMesh( aSubMeshDS, subid );
+              //                  }
+
+              // try to get applied algorithms
+              if ( aSubGroup->ExistInternalObject( "Applied Algorithms" ) ) {
+                // open "applied algorithms" HDF group
+                aSubSubGroup = new HDFgroup( "Applied Algorithms", aSubGroup );
+                aSubSubGroup->OpenOnDisk();
+                // get number of applied algorithms
+                int aNbSubObjects = aSubSubGroup->nInternalObjects(); 
+                for ( int l = 0; l < aNbSubObjects; l++ ) {
+                  char name_dataset[ HDF_NAME_MAX_LEN+1 ];
+                  aSubSubGroup->InternalObjectIndentify( l, name_dataset );
+                  // check if it is an algorithm
+                  if ( string( name_dataset ).substr( 0, 4 ) == string( "Algo" ) ) {
+                    aDataset = new HDFdataset( name_dataset, aSubSubGroup );
+                    aDataset->OpenOnDisk();
+                    size = aDataset->GetSize();
+                    char* refFromFile = new char[ size ];
+                    aDataset->ReadFromDisk( refFromFile );
+                    aDataset->CloseOnDisk();
+
+                    //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
+                    //CORBA::Object_var hypObject = SObjectToObject( hypSO );
+                    int id = atoi( refFromFile );
+                    string anIOR = myStudyContext->getIORbyOldId( id );
+                    if ( !anIOR.empty() ) {
+                      CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
+                      if ( !CORBA::is_nil( hypObject ) ) {
+                        SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
+                        if ( !anHyp->_is_nil() && !aShapeObject->_is_nil() )
+                          myNewMeshImpl->addHypothesis( aSubShapeObject, anHyp );
+                      }
+                    }
                   }
                 }
+                // close "applied algorithms" HDF group
+                aSubSubGroup->CloseOnDisk();
               }
-              if ( aEids ) delete [] aEids;
-              if ( aFids ) delete [] aFids;
-              if ( aEpos ) delete [] aEpos;
-              if ( aFupos ) delete [] aFupos;
-              if ( aFvpos ) delete [] aFvpos;
-              
-              aGroup->CloseOnDisk();
 
-            } // if ( aTopGroup->ExistInternalObject( "Node Positions" ) )
-         } // if ( hasData )
-
-          // Recompute State (as computed sub-meshes are restored from MED)
-         if ( !aShapeObject->_is_nil() ) {
-           MESSAGE("Compute State Engine ...");
-           TopoDS_Shape myLocShape = GeomObjectToShape( aShapeObject );
-           myNewMeshImpl->GetImpl().GetSubMesh(myLocShape)->ComputeStateEngine
-              (SMESH_subMesh::SUBMESH_RESTORED);
-           MESSAGE("Compute State Engine finished");
-         }
-
-         // try to get groups
-         for ( int ii = GetNodeGroupsTag(); ii <= GetVolumeGroupsTag(); ii++ ) {
-           char name_group[ 30 ];
-           if ( ii == GetNodeGroupsTag() )
-             strcpy( name_group, "Groups of Nodes" );
-           else if ( ii == GetEdgeGroupsTag() )
-             strcpy( name_group, "Groups of Edges" );
-           else if ( ii == GetFaceGroupsTag() )
-             strcpy( name_group, "Groups of Faces" );
-           else if ( ii == GetVolumeGroupsTag() )
-             strcpy( name_group, "Groups of Volumes" );
-
-           if ( aTopGroup->ExistInternalObject( name_group ) ) {
-             aGroup = new HDFgroup( name_group, aTopGroup );
-             aGroup->OpenOnDisk();
-             // get number of groups
-             int aNbSubObjects = aGroup->nInternalObjects(); 
-             for ( int j = 0; j < aNbSubObjects; j++ ) {
-               char name_dataset[ HDF_NAME_MAX_LEN+1 ];
-               aGroup->InternalObjectIndentify( j, name_dataset );
-               // check if it is an group
-               if ( string( name_dataset ).substr( 0, 5 ) == string( "Group" ) ) {
-                 // --> get group id
-                 int subid = atoi( string( name_dataset ).substr( 5 ).c_str() );
-                 if ( subid <= 0 )
-                   continue;
-                 aDataset = new HDFdataset( name_dataset, aGroup );
-                 aDataset->OpenOnDisk();
-
-                 // Retrieve actual group name
-                 size = aDataset->GetSize();
-                 char* nameFromFile = new char[ size ];
-                 aDataset->ReadFromDisk( nameFromFile );
-                 aDataset->CloseOnDisk();
-
-                 // Try to find a shape reference
-                  TopoDS_Shape aShape;
-                  char aRefName[ 30 ];
-                  sprintf( aRefName, "Ref on shape %d", subid);
-                  if ( aGroup->ExistInternalObject( aRefName ) ) {
-                    // load mesh "Ref on shape" - it's an entry to SObject
-                    aDataset = new HDFdataset( aRefName, aGroup );
+              // try to get applied hypotheses
+              if ( aSubGroup->ExistInternalObject( "Applied Hypotheses" ) ) {
+                // open "applied hypotheses" HDF group
+                aSubSubGroup = new HDFgroup( "Applied Hypotheses", aSubGroup );
+                aSubSubGroup->OpenOnDisk();
+                // get number of applied hypotheses
+                int aNbSubObjects = aSubSubGroup->nInternalObjects(); 
+                for ( int l = 0; l < aNbSubObjects; l++ ) {
+                  char name_dataset[ HDF_NAME_MAX_LEN+1 ];
+                  aSubSubGroup->InternalObjectIndentify( l, name_dataset );
+                  // check if it is a hypothesis
+                  if ( string( name_dataset ).substr( 0, 3 ) == string( "Hyp" ) ) {
+                    aDataset = new HDFdataset( name_dataset, aSubSubGroup );
                     aDataset->OpenOnDisk();
                     size = aDataset->GetSize();
                     char* refFromFile = new char[ size ];
                     aDataset->ReadFromDisk( refFromFile );
                     aDataset->CloseOnDisk();
-                    if ( strlen( refFromFile ) > 0 ) {
-                      SALOMEDS::SObject_var shapeSO = myCurrentStudy->FindObjectID( refFromFile );
-                      CORBA::Object_var shapeObject = SObjectToObject( shapeSO );
-                      if ( !CORBA::is_nil( shapeObject ) ) {
-                        aShapeObject = GEOM::GEOM_Object::_narrow( shapeObject );
-                        if ( !aShapeObject->_is_nil() )
-                          aShape = GeomObjectToShape( aShapeObject );
+
+                    //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile );
+                    //CORBA::Object_var hypObject = SObjectToObject( hypSO );
+                    int id = atoi( refFromFile );
+                    string anIOR = myStudyContext->getIORbyOldId( id );
+                    if ( !anIOR.empty() ) {
+                      CORBA::Object_var hypObject = GetORB()->string_to_object( anIOR.c_str() );
+                      if ( !CORBA::is_nil( hypObject ) ) {
+                        SMESH::SMESH_Hypothesis_var anHyp = SMESH::SMESH_Hypothesis::_narrow( hypObject );
+                        if ( !anHyp->_is_nil() && !aShapeObject->_is_nil() )
+                          myNewMeshImpl->addHypothesis( aSubShapeObject, anHyp );
                       }
                     }
                   }
-                 // Create group servant
-                  SMESH::ElementType type = (SMESH::ElementType)(ii - GetNodeGroupsTag() + 1);
-                 SMESH::SMESH_GroupBase_var aNewGroup = SMESH::SMESH_GroupBase::_duplicate
-                    ( myNewMeshImpl->createGroup( type, nameFromFile, aShape ) );
-                 // Obtain a SMESHDS_Group object 
-                 if ( aNewGroup->_is_nil() )
-                   continue;
-
-                 string iorSubString = GetORB()->object_to_string( aNewGroup );
-                 int newSubId = myStudyContext->findId( iorSubString );
-                 myStudyContext->mapOldToNew( subid, newSubId );
-
-                 SMESH_GroupBase_i* aGroupImpl =
-                    dynamic_cast<SMESH_GroupBase_i*>( GetServant( aNewGroup ).in() );
-                 if ( !aGroupImpl )
-                   continue;
-
-                 SMESH_Group* aLocalGroup  = myLocMesh.GetGroup( aGroupImpl->GetLocalID() );
-                 if ( !aLocalGroup )
-                   continue;
-
-                 SMESHDS_GroupBase* aGroupBaseDS = aLocalGroup->GetGroupDS();
-                 aGroupBaseDS->SetStoreName( name_dataset );
-
-                 // Fill group with contents from MED file
-                  SMESHDS_Group* aGrp = dynamic_cast<SMESHDS_Group*>( aGroupBaseDS );
-                  if ( aGrp )
-                    myReader.GetGroup( aGrp );
-               }
-             }
-             aGroup->CloseOnDisk();
-           }
-         }
-       }
-       // close mesh group
-       aTopGroup->CloseOnDisk();       
+                }
+                // close "applied hypotheses" HDF group
+                aSubSubGroup->CloseOnDisk();
+              }
+
+              // close submesh HDF group
+              aSubGroup->CloseOnDisk();
+            }
+          }
+          // close submeshes containers HDF group
+          aGroup->CloseOnDisk();
+        }
+      }
+
+      if(hasData) {
+
+        // Read sub-meshes from MED
+        // -------------------------
+        if(MYDEBUG) MESSAGE("Create all sub-meshes");
+        bool submeshesInFamilies = ( ! aTopGroup->ExistInternalObject( "Submeshes" ));
+        if ( submeshesInFamilies )
+        {
+          // old way working before fix of PAL 12992
+          myReader.CreateAllSubMeshes();
+        }
+        else
+        {
+          // open a group
+          aGroup = new HDFgroup( "Submeshes", aTopGroup ); 
+          aGroup->OpenOnDisk();
+
+          int maxID = mySMESHDSMesh->MaxShapeIndex();
+          vector< SMESHDS_SubMesh * > subMeshes( maxID + 1, (SMESHDS_SubMesh*) 0 );
+          vector< TopAbs_ShapeEnum  > smType   ( maxID + 1, TopAbs_SHAPE ); 
+
+          PositionCreator aPositionCreator;
+
+          SMDS_NodeIteratorPtr nIt = mySMESHDSMesh->nodesIterator();
+          SMDS_ElemIteratorPtr eIt = mySMESHDSMesh->elementsIterator();
+          for ( int isNode = 0; isNode < 2; ++isNode )
+          {
+            string aDSName( isNode ? "Node Submeshes" : "Element Submeshes");
+            if ( aGroup->ExistInternalObject( (char*) aDSName.c_str() ))
+            {
+              aDataset = new HDFdataset( (char*) aDSName.c_str(), aGroup );
+              aDataset->OpenOnDisk();
+              // read submesh IDs for all elements sorted by ID
+              int nbElems = aDataset->GetSize();
+              int* smIDs = new int [ nbElems ];
+              aDataset->ReadFromDisk( smIDs );
+              aDataset->CloseOnDisk();
+
+              // get elements sorted by ID
+              TIDSortedElemSet elemSet;
+              if ( isNode )
+                while ( nIt->more() ) elemSet.insert( nIt->next() );
+              else
+                while ( eIt->more() ) elemSet.insert( eIt->next() );
+              //ASSERT( elemSet.size() == nbElems ); -- issue 20182
+              // -- Most probably a bad study was saved when there were
+              // not fixed bugs in SMDS_MeshInfo
+              if ( elemSet.size() < nbElems ) {
+#ifdef _DEBUG_
+                cout << "SMESH_Gen_i::Load(), warning: Node position data is invalid" << endl;
+#endif
+                nbElems = elemSet.size();
+              }
+              // add elements to submeshes
+              TIDSortedElemSet::iterator iE = elemSet.begin();
+              for ( int i = 0; i < nbElems; ++i, ++iE )
+              {
+                int smID = smIDs[ i ];
+                if ( smID == 0 ) continue;
+                const SMDS_MeshElement* elem = *iE;
+                if( smID > maxID ) {
+                  // corresponding subshape no longer exists: maybe geom group has been edited
+                  if ( myNewMeshImpl->HasShapeToMesh() )
+                    mySMESHDSMesh->RemoveElement( elem );
+                  continue;
+                }
+                // get or create submesh
+                SMESHDS_SubMesh* & sm = subMeshes[ smID ];
+                if ( ! sm ) {
+                  sm = mySMESHDSMesh->NewSubMesh( smID );
+                  smType[ smID ] = mySMESHDSMesh->IndexToShape( smID ).ShapeType();
+                }
+                // add
+                if ( isNode ) {
+                  SMDS_PositionPtr pos = aPositionCreator.MakePosition( smType[ smID ]);
+                  pos->SetShapeId( smID );
+                  SMDS_MeshNode* node = const_cast<SMDS_MeshNode*>( static_cast<const SMDS_MeshNode*>( elem ));
+                  node->SetPosition( pos );
+                  sm->AddNode( node );
+                } else {
+                  sm->AddElement( elem );
+                }
+              }
+              delete [] smIDs;
+            }
+          }
+        } // end reading submeshes
+
+        // Read node positions on sub-shapes (SMDS_Position)
+
+        if ( aTopGroup->ExistInternalObject( "Node Positions" ))
+        {
+          // There are 5 datasets to read:
+          // "Nodes on Edges" - ID of node on edge
+          // "Edge positions" - U parameter on node on edge
+          // "Nodes on Faces" - ID of node on face
+          // "Face U positions" - U parameter of node on face
+          // "Face V positions" - V parameter of node on face
+          const char* aEid_DSName = "Nodes on Edges";
+          const char* aEu_DSName  = "Edge positions";
+          const char* aFu_DSName  = "Face U positions";
+          //char* aFid_DSName = "Nodes on Faces";
+          //char* aFv_DSName  = "Face V positions";
+
+          // data to retrieve
+          int nbEids = 0, nbFids = 0;
+          int *aEids = 0, *aFids  = 0;
+          double *aEpos = 0, *aFupos = 0, *aFvpos = 0;
+
+          // open a group
+          aGroup = new HDFgroup( "Node Positions", aTopGroup ); 
+          aGroup->OpenOnDisk();
+
+          // loop on 5 data sets
+          int aNbObjects = aGroup->nInternalObjects();
+          for ( int i = 0; i < aNbObjects; i++ )
+          {
+            // identify dataset
+            char aDSName[ HDF_NAME_MAX_LEN+1 ];
+            aGroup->InternalObjectIndentify( i, aDSName );
+            // read data
+            aDataset = new HDFdataset( aDSName, aGroup );
+            aDataset->OpenOnDisk();
+            if ( aDataset->GetType() == HDF_FLOAT64 ) // Positions
+            {
+              double* pos = new double [ aDataset->GetSize() ];
+              aDataset->ReadFromDisk( pos );
+              // which one?
+              if ( strncmp( aDSName, aEu_DSName, strlen( aEu_DSName )) == 0 )
+                aEpos = pos;
+              else if ( strncmp( aDSName, aFu_DSName, strlen( aFu_DSName )) == 0 )
+                aFupos = pos;
+              else
+                aFvpos = pos;
+            }
+            else // NODE IDS
+            {
+              int aSize = aDataset->GetSize();
+
+              // for reading files, created from 18.07.2005 till 10.10.2005
+              if (aDataset->GetType() == HDF_STRING)
+                aSize /= sizeof(int);
+
+              int* ids = new int [aSize];
+              aDataset->ReadFromDisk( ids );
+              // on face or nodes?
+              if ( strncmp( aDSName, aEid_DSName, strlen( aEid_DSName )) == 0 ) {
+                aEids = ids;
+                nbEids = aSize;
+              }
+              else {
+                aFids = ids;
+                nbFids = aSize;
+              }
+            }
+            aDataset->CloseOnDisk();
+          } // loop on 5 datasets
+
+          // Set node positions on edges or faces
+          for ( int onFace = 0; onFace < 2; onFace++ )
+          {
+            int nbNodes = ( onFace ? nbFids : nbEids );
+            if ( nbNodes == 0 ) continue;
+            int* aNodeIDs = ( onFace ? aFids : aEids );
+            double* aUPos = ( onFace ? aFupos : aEpos );
+            double* aVPos = ( onFace ? aFvpos : 0 );
+            // loop on node IDs
+            for ( int iNode = 0; iNode < nbNodes; iNode++ )
+            {
+              const SMDS_MeshNode* node = mySMESHDSMesh->FindNode( aNodeIDs[ iNode ]);
+              if ( !node ) continue; // maybe removed while Loading() if geometry changed
+              SMDS_PositionPtr aPos = node->GetPosition();
+              ASSERT( aPos );
+              if ( onFace ) {
+                // ASSERT( aPos->GetTypeOfPosition() == SMDS_TOP_FACE );-- issue 20182
+                // -- Most probably a bad study was saved when there were
+                // not fixed bugs in SMDS_MeshInfo
+                if ( aPos->GetTypeOfPosition() == SMDS_TOP_FACE ) {
+                  SMDS_FacePosition* fPos = const_cast<SMDS_FacePosition*>
+                    ( static_cast<const SMDS_FacePosition*>( aPos.get() ));
+                  fPos->SetUParameter( aUPos[ iNode ]);
+                  fPos->SetVParameter( aVPos[ iNode ]);
+                }
+              }
+              else {
+                // ASSERT( aPos->GetTypeOfPosition() == SMDS_TOP_EDGE );-- issue 20182
+                if ( aPos->GetTypeOfPosition() == SMDS_TOP_EDGE ) {
+                  SMDS_EdgePosition* fPos = const_cast<SMDS_EdgePosition*>
+                    ( static_cast<const SMDS_EdgePosition*>( aPos.get() ));
+                  fPos->SetUParameter( aUPos[ iNode ]);
+                }
+              }
+            }
+          }
+          if ( aEids ) delete [] aEids;
+          if ( aFids ) delete [] aFids;
+          if ( aEpos ) delete [] aEpos;
+          if ( aFupos ) delete [] aFupos;
+          if ( aFvpos ) delete [] aFvpos;
+
+          aGroup->CloseOnDisk();
+
+        } // if ( aTopGroup->ExistInternalObject( "Node Positions" ) )
+      } // if ( hasData )
+
+      // Recompute State (as computed sub-meshes are restored from MED)
+      if ( !aShapeObject->_is_nil() || !myNewMeshImpl->HasShapeToMesh()) {
+        MESSAGE("Compute State Engine ...");
+        TopoDS_Shape myLocShape;
+        if(myNewMeshImpl->HasShapeToMesh())
+          myLocShape = GeomObjectToShape( aShapeObject );
+        else
+          myLocShape = SMESH_Mesh::PseudoShape();
+        
+        myNewMeshImpl->GetImpl().GetSubMesh(myLocShape)->ComputeStateEngine
+          (SMESH_subMesh::SUBMESH_RESTORED);
+        MESSAGE("Compute State Engine finished");
+      }
+
+      // try to get groups
+      for ( int ii = GetNodeGroupsTag(); ii <= GetVolumeGroupsTag(); ii++ ) {
+        char name_group[ 30 ];
+        if ( ii == GetNodeGroupsTag() )
+          strcpy( name_group, "Groups of Nodes" );
+        else if ( ii == GetEdgeGroupsTag() )
+          strcpy( name_group, "Groups of Edges" );
+        else if ( ii == GetFaceGroupsTag() )
+          strcpy( name_group, "Groups of Faces" );
+        else if ( ii == GetVolumeGroupsTag() )
+          strcpy( name_group, "Groups of Volumes" );
+
+        if ( aTopGroup->ExistInternalObject( name_group ) ) {
+          aGroup = new HDFgroup( name_group, aTopGroup );
+          aGroup->OpenOnDisk();
+          // get number of groups
+          int aNbSubObjects = aGroup->nInternalObjects(); 
+          for ( int j = 0; j < aNbSubObjects; j++ ) {
+            char name_dataset[ HDF_NAME_MAX_LEN+1 ];
+            aGroup->InternalObjectIndentify( j, name_dataset );
+            // check if it is an group
+            if ( string( name_dataset ).substr( 0, 5 ) == string( "Group" ) ) {
+              // --> get group id
+              int subid = atoi( string( name_dataset ).substr( 5 ).c_str() );
+              if ( subid <= 0 )
+                continue;
+              aDataset = new HDFdataset( name_dataset, aGroup );
+              aDataset->OpenOnDisk();
+
+              // Retrieve actual group name
+              size = aDataset->GetSize();
+              char* nameFromFile = new char[ size ];
+              aDataset->ReadFromDisk( nameFromFile );
+              aDataset->CloseOnDisk();
+
+              // Try to find a shape reference
+              TopoDS_Shape aShape;
+              char aRefName[ 30 ];
+              sprintf( aRefName, "Ref on shape %d", subid);
+              if ( aGroup->ExistInternalObject( aRefName ) ) {
+                // load mesh "Ref on shape" - it's an entry to SObject
+                aDataset = new HDFdataset( aRefName, aGroup );
+                aDataset->OpenOnDisk();
+                size = aDataset->GetSize();
+                char* refFromFile = new char[ size ];
+                aDataset->ReadFromDisk( refFromFile );
+                aDataset->CloseOnDisk();
+                if ( strlen( refFromFile ) > 0 ) {
+                  SALOMEDS::SObject_var shapeSO = myCurrentStudy->FindObjectID( refFromFile );
+                  CORBA::Object_var shapeObject = SObjectToObject( shapeSO );
+                  if ( !CORBA::is_nil( shapeObject ) ) {
+                    aShapeObject = GEOM::GEOM_Object::_narrow( shapeObject );
+                    if ( !aShapeObject->_is_nil() )
+                      aShape = GeomObjectToShape( aShapeObject );
+                  }
+                }
+              }
+              // Create group servant
+              SMESH::ElementType type = (SMESH::ElementType)(ii - GetNodeGroupsTag() + 1);
+              SMESH::SMESH_GroupBase_var aNewGroup = SMESH::SMESH_GroupBase::_duplicate
+                ( myNewMeshImpl->createGroup( type, nameFromFile, aShape ) );
+              // Obtain a SMESHDS_Group object 
+              if ( aNewGroup->_is_nil() )
+                continue;
+
+              string iorSubString = GetORB()->object_to_string( aNewGroup );
+              int newSubId = myStudyContext->findId( iorSubString );
+              myStudyContext->mapOldToNew( subid, newSubId );
+
+              SMESH_GroupBase_i* aGroupImpl =
+                dynamic_cast<SMESH_GroupBase_i*>( GetServant( aNewGroup ).in() );
+              if ( !aGroupImpl )
+                continue;
+
+              SMESH_Group* aLocalGroup  = myLocMesh.GetGroup( aGroupImpl->GetLocalID() );
+              if ( !aLocalGroup )
+                continue;
+
+              SMESHDS_GroupBase* aGroupBaseDS = aLocalGroup->GetGroupDS();
+              aGroupBaseDS->SetStoreName( name_dataset );
+
+              // ouv : NPAL12872
+              // Read color of the group
+              char aGroupColorName[ 30 ];
+              sprintf( aGroupColorName, "ColorGroup %d", subid);
+              if ( aGroup->ExistInternalObject( aGroupColorName ) )
+              {
+                aDataset = new HDFdataset( aGroupColorName, aGroup );
+                aDataset->OpenOnDisk();
+                size = aDataset->GetSize();
+                double* anRGB = new double[ size ];
+                aDataset->ReadFromDisk( anRGB );
+                aDataset->CloseOnDisk();
+                Quantity_Color aColor( anRGB[0], anRGB[1], anRGB[2], Quantity_TOC_RGB );
+                aGroupBaseDS->SetColor( aColor );
+              }
+
+              // Fill group with contents from MED file
+              SMESHDS_Group* aGrp = dynamic_cast<SMESHDS_Group*>( aGroupBaseDS );
+              if ( aGrp )
+                myReader.GetGroup( aGrp );
+            }
+          }
+          aGroup->CloseOnDisk();
+        }
       }
     }
+    // close mesh group
+    if(aTopGroup)
+      aTopGroup->CloseOnDisk();   
   }
   // close HDF file
   aFile->CloseOnDisk();
@@ -2464,16 +4138,39 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent,
 /*!
  *  SMESH_Gen_i::LoadASCII
  *
- *  Load SMESH module's data in ASCII format (not implemented yet)
+ *  Load SMESH module's data in ASCII format
  */
 //=============================================================================
 
 bool SMESH_Gen_i::LoadASCII( SALOMEDS::SComponent_ptr theComponent,
-                            const SALOMEDS::TMPFile& theStream,
-                            const char*              theURL,
-                            bool                     isMultiFile ) {
+                             const SALOMEDS::TMPFile& theStream,
+                             const char*              theURL,
+                             bool                     isMultiFile ) {
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::LoadASCII" );
   return Load( theComponent, theStream, theURL, isMultiFile );
+
+  //before call main ::Load method it's need for decipher text format to
+  //binary ( "|xx" => x' )
+  int size = theStream.length();
+  if ( int((size / 3 )*3) != size ) //error size of buffer
+    return false;
+
+  int real_size = int(size / 3);
+
+  _CORBA_Octet* buffer = new _CORBA_Octet[real_size];
+  char tmp[3];
+  tmp[2]='\0';
+  int c = -1;
+  for ( int i = 0; i < real_size; i++ )
+  {
+    memcpy( &(tmp[0]), &(theStream[i*3+1]), 2 );
+    sscanf( tmp, "%x", &c );
+    sprintf( (char*)&(buffer[i]), "%c", (char)c );
+  }
+
+  SALOMEDS::TMPFile_var aRealStreamFile = new SALOMEDS::TMPFile(real_size, real_size, buffer, 1);
+  
+  return Load( theComponent, *(aRealStreamFile._retn()), theURL, isMultiFile );
 }
 
 //=============================================================================
@@ -2488,12 +4185,36 @@ void SMESH_Gen_i::Close( SALOMEDS::SComponent_ptr theComponent )
 {
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::Close" );
 
+  // set correct current study
+  if (theComponent->GetStudy()->StudyId() != GetCurrentStudyID())
+    SetCurrentStudy(theComponent->GetStudy());
+
   // Clear study contexts data
   int studyId = GetCurrentStudyID();
   if ( myStudyContextMap.find( studyId ) != myStudyContextMap.end() ) {
     delete myStudyContextMap[ studyId ];
     myStudyContextMap.erase( studyId );
   }
+
+  // delete SMESH_Mesh's
+//   See bug IPAL19437.
+//
+//   StudyContextStruct* context = myGen.GetStudyContext( studyId );
+//   map< int, SMESH_Mesh* >::iterator i_mesh = context->mapMesh.begin();
+//   for ( ; i_mesh != context->mapMesh.end(); ++i_mesh ) {
+//     printf( "--------------------------- SMESH_Gen_i::Close, delete aGroup = %p \n", i_mesh->second );
+//     delete i_mesh->second;
+//   }
+  
+
+  // delete SMESHDS_Mesh's
+  // it's too long on big meshes
+//   if ( context->myDocument ) {
+//     delete context->myDocument;
+//     context->myDocument = 0;
+//   }
+  
+  myCurrentStudy = SALOMEDS::Study::_nil();
   return;
 }
 
@@ -2521,9 +4242,9 @@ char* SMESH_Gen_i::ComponentDataType()
 //=============================================================================
 
 char* SMESH_Gen_i::IORToLocalPersistentID( SALOMEDS::SObject_ptr /*theSObject*/,
-                                          const char*           IORString,
-                                          CORBA::Boolean        /*isMultiFile*/,
-                                          CORBA::Boolean        /*isASCII*/ )
+                                           const char*           IORString,
+                                           CORBA::Boolean        /*isMultiFile*/,
+                                           CORBA::Boolean        /*isASCII*/ )
 {
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::IORToLocalPersistentID" );
   StudyContext* myStudyContext = GetCurrentStudyContext();
@@ -2549,9 +4270,9 @@ char* SMESH_Gen_i::IORToLocalPersistentID( SALOMEDS::SObject_ptr /*theSObject*/,
 //=============================================================================
 
 char* SMESH_Gen_i::LocalPersistentIDToIOR( SALOMEDS::SObject_ptr /*theSObject*/,
-                                          const char*           aLocalPersistentID,
-                                          CORBA::Boolean        /*isMultiFile*/,
-                                          CORBA::Boolean        /*isASCII*/ )
+                                           const char*           aLocalPersistentID,
+                                           CORBA::Boolean        /*isMultiFile*/,
+                                           CORBA::Boolean        /*isASCII*/ )
 {
   if(MYDEBUG) MESSAGE( "SMESH_Gen_i::LocalPersistentIDToIOR(): id = " << aLocalPersistentID );
   StudyContext* myStudyContext = GetCurrentStudyContext();
@@ -2569,15 +4290,57 @@ char* SMESH_Gen_i::LocalPersistentIDToIOR( SALOMEDS::SObject_ptr /*theSObject*/,
 //=======================================================================
 
 int SMESH_Gen_i::RegisterObject(CORBA::Object_ptr theObject)
+{
+  StudyContext* myStudyContext = GetCurrentStudyContext();
+  if ( myStudyContext && !CORBA::is_nil( theObject )) {
+    CORBA::String_var iorString = GetORB()->object_to_string( theObject );
+    return myStudyContext->addObject( string( iorString.in() ) );
+  }
+  return 0;
+}
+
+//================================================================================
+/*!
+ * \brief Return id of registered object
+  * \param theObject - the Object
+  * \retval int - Object id
+ */
+//================================================================================
+
+CORBA::Long SMESH_Gen_i::GetObjectId(CORBA::Object_ptr theObject)
 {
   StudyContext* myStudyContext = GetCurrentStudyContext();
   if ( myStudyContext && !CORBA::is_nil( theObject )) {
     string iorString = GetORB()->object_to_string( theObject );
-    return myStudyContext->addObject( iorString );
+    return myStudyContext->findId( iorString );
   }
   return 0;
 }
-      
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::SetName
+ *
+ *  Set a new object name
+ */
+//=============================================================================
+void SMESH_Gen_i::SetName(const char* theIOR,
+                          const char* theName)
+{
+  if ( theIOR && strcmp( theIOR, "" ) ) {
+    CORBA::Object_var anObject = GetORB()->string_to_object( theIOR );
+    SALOMEDS::SObject_var aSO = ObjectToSObject( myCurrentStudy, anObject );
+    if ( !aSO->_is_nil() ) {
+      SetName( aSO, theName );
+    }
+  }
+}
+
+int SMESH_Gen_i::GetCurrentStudyID()
+{
+  return myCurrentStudy->_is_nil() || myCurrentStudy->_non_existent() ? -1 : myCurrentStudy->StudyId();
+}
+    
 //=============================================================================
 /*! 
  *  SMESHEngine_factory
@@ -2587,12 +4350,12 @@ int SMESH_Gen_i::RegisterObject(CORBA::Object_ptr theObject)
 //=============================================================================
 
 extern "C"
-{
+{ SMESH_I_EXPORT
   PortableServer::ObjectId* SMESHEngine_factory( CORBA::ORB_ptr            orb,
-                                                PortableServer::POA_ptr   poa, 
-                                                PortableServer::ObjectId* contId,
-                                                const char*               instanceName, 
-                                                const char*               interfaceName )
+                                                 PortableServer::POA_ptr   poa, 
+                                                 PortableServer::ObjectId* contId,
+                                                 const char*               instanceName, 
+                                                 const char*               interfaceName )
   {
     if(MYDEBUG) MESSAGE( "PortableServer::ObjectId* SMESHEngine_factory()" );
     if(MYDEBUG) SCRUTE(interfaceName);