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[bos #24169] [CEA 24168] Error in AffectedElemGroupsInRegion
[modules/smesh.git] / src / SMESH_I / SMESH_MeshEditor_i.cxx
index dd2d442ce53e28e74ed916916f663e31b04a1373..d96c5c99e22847b2bf173ea69fe6865630028480 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2021  CEA/DEN, EDF R&D, OPEN CASCADE
 //
 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
@@ -135,9 +135,9 @@ namespace MeshEditor_I {
     {
       // copy element nodes
       int anElemNbNodes = anElem->NbNodes();
-      vector< int > anElemNodesID( anElemNbNodes ) ;
+      vector< smIdType > anElemNodesID( anElemNbNodes ) ;
       SMDS_ElemIteratorPtr itElemNodes = anElem->nodesIterator();
-      for ( int i = 0; itElemNodes->more(); i++)
+      for ( smIdType i = 0; itElemNodes->more(); i++)
       {
         const SMDS_MeshNode* anElemNode = cast2Node( itElemNodes->next() );
         Copy( anElemNode );
@@ -178,7 +178,7 @@ namespace MeshEditor_I {
 
   //=============================================================================
   /*!
-   * \brief Deleter of theNodeSearcher at any compute event occurred
+   * \brief Deleter of theNodeSearcher and theElementSearcher at any compute event occurred
    */
   //=============================================================================
 
@@ -193,8 +193,8 @@ namespace MeshEditor_I {
     //!< Delete theNodeSearcher
     static void Delete()
     {
-      if ( theNodeSearcher )    delete theNodeSearcher;    theNodeSearcher    = 0;
-      if ( theElementSearcher ) delete theElementSearcher; theElementSearcher = 0;
+      if ( theNodeSearcher )    { delete theNodeSearcher; }    theNodeSearcher    = 0;
+      if ( theElementSearcher ) { delete theElementSearcher; } theElementSearcher = 0;
     }
     typedef map < int, SMESH_subMesh * > TDependsOnMap;
     //!< The meshod called by submesh: do my main job
@@ -264,11 +264,11 @@ namespace MeshEditor_I {
    */
   //================================================================================
 
-  void arrayToSet(const SMESH::long_array & IDs,
-                  const SMESHDS_Mesh*       aMesh,
-                  TIDSortedElemSet&         aMap,
-                  const SMDSAbs_ElementType aType = SMDSAbs_All,
-                  SMDS_MeshElement::Filter* aFilter = NULL)
+  void arrayToSet(const SMESH::smIdType_array & IDs,
+                  const SMESHDS_Mesh*           aMesh,
+                  TIDSortedElemSet&             aMap,
+                  const SMDSAbs_ElementType     aType = SMDSAbs_All,
+                  SMDS_MeshElement::Filter*     aFilter = NULL)
   {
     SMDS_MeshElement::NonNullFilter filter1;
     SMDS_MeshElement::TypeFilter    filter2( aType );
@@ -279,13 +279,13 @@ namespace MeshEditor_I {
     SMDS_MeshElement::Filter & filter = *aFilter;
 
     if ( aType == SMDSAbs_Node )
-      for ( CORBA::ULong i = 0; i < IDs.length(); i++ ) {
+      for ( SMESH::smIdType i = 0; i < IDs.length(); i++ ) {
         const SMDS_MeshElement * elem = aMesh->FindNode( IDs[i] );
         if ( filter( elem ))
           aMap.insert( aMap.end(), elem );
       }
     else
-      for ( CORBA::ULong i = 0; i<IDs.length(); i++) {
+      for ( SMESH::smIdType i = 0; i<IDs.length(); i++) {
         const SMDS_MeshElement * elem = aMesh->FindElement( IDs[i] );
         if ( filter( elem ))
           aMap.insert( aMap.end(), elem );
@@ -298,33 +298,35 @@ namespace MeshEditor_I {
    */
   //================================================================================
 
-  void idSourceToNodeSet(SMESH::SMESH_IDSource_ptr  theObject,
-                         const SMESHDS_Mesh*        theMeshDS,
-                         TIDSortedNodeSet&          theNodeSet)
+  void idSourceToNodeSet(SMESH::SMESH_IDSource_ptr theObject,
+                         const SMESHDS_Mesh*       theMeshDS,
+                         TIDSortedNodeSet&         theNodeSet)
 
   {
     if ( CORBA::is_nil( theObject ) )
       return;
-    SMESH::array_of_ElementType_var types = theObject->GetTypes();
-    SMESH::long_array_var     aElementsId = theObject->GetIDs();
-    if ( types->length() == 1 && types[0] == SMESH::NODE)
+    if ( SMESH::DownCast<SMESH_Mesh_i*>( theObject ))
     {
-      for ( CORBA::ULong i = 0; i < aElementsId->length(); i++ )
-        if ( const SMDS_MeshNode * n = theMeshDS->FindNode( aElementsId[i] ))
-          theNodeSet.insert( theNodeSet.end(), n);
-    }
-    else if ( SMESH::DownCast<SMESH_Mesh_i*>( theObject ))
-    {
-      SMDS_NodeIteratorPtr nIt = theMeshDS->nodesIterator();
-      while ( nIt->more( ))
+      for ( SMDS_NodeIteratorPtr nIt = theMeshDS->nodesIterator(); nIt->more(); )
         if ( const SMDS_MeshElement * elem = nIt->next() )
           theNodeSet.insert( elem->begin_nodes(), elem->end_nodes());
     }
     else
     {
-      for ( CORBA::ULong i = 0; i < aElementsId->length(); i++ )
-        if ( const SMDS_MeshElement * elem = theMeshDS->FindElement( aElementsId[i] ))
-          theNodeSet.insert( elem->begin_nodes(), elem->end_nodes());
+      SMESH::array_of_ElementType_var types = theObject->GetTypes();
+      SMESH::smIdType_array_var aElementsId = theObject->GetIDs();
+      if ( types->length() == 1 && types[0] == SMESH::NODE)
+      {
+        for ( CORBA::ULong i = 0; i < aElementsId->length(); i++ )
+          if ( const SMDS_MeshNode * n = theMeshDS->FindNode( aElementsId[i] ))
+            theNodeSet.insert( theNodeSet.end(), n);
+      }
+      else
+      {
+        for ( CORBA::ULong i = 0; i < aElementsId->length(); i++ )
+          if ( const SMDS_MeshElement * elem = theMeshDS->FindElement( aElementsId[i] ))
+            theNodeSet.insert( elem->begin_nodes(), elem->end_nodes());
+      }
     }
   }
 
@@ -381,8 +383,10 @@ namespace MeshEditor_I {
    */
   //================================================================================
 
-  string getPartIOR( SMESH::SMESH_IDSource_ptr theMeshPart, SMESH::ElementType type)
+  string getPartIOR( SMESH::SMESH_IDSource_ptr theMeshPart, SMESH::ElementType type = SMESH::ALL )
   {
+    if ( SMESH::DownCast<SMESH_Mesh_i*>( theMeshPart ))
+      return "";
     string partIOR = SMESH_Gen_i::GetORB()->object_to_string( theMeshPart );
     if ( SMESH_Group_i* group_i = SMESH::DownCast<SMESH_Group_i*>( theMeshPart ))
       // take into account passible group modification
@@ -519,7 +523,6 @@ TPreviewMesh * SMESH_MeshEditor_i::getPreviewMesh(SMDSAbs_ElementType previewEle
 //================================================================================
 
 SMESH::MeshPreviewStruct* SMESH_MeshEditor_i::GetPreviewData()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   const bool hasBadElems = ( getEditor().GetError() && getEditor().GetError()->HasBadElems() );
@@ -570,7 +573,7 @@ SMESH::MeshPreviewStruct* SMESH_MeshEditor_i::GetPreviewData()
          aMeshElem->nodeIterator() );
       while ( itElemNodes->more() ) {
         const SMDS_MeshNode* aMeshNode = itElemNodes->next();
-        int aNodeID = aMeshNode->GetID();
+        smIdType aNodeID = aMeshNode->GetID();
         TNodesMap::iterator anIter = nodesMap.find(aNodeID);
         if ( anIter == nodesMap.end() ) {
           // filling the nodes coordinates
@@ -612,11 +615,10 @@ SMESH::MeshPreviewStruct* SMESH_MeshEditor_i::GetPreviewData()
  */
 //================================================================================
 
-SMESH::long_array* SMESH_MeshEditor_i::GetLastCreatedNodes()
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType_array* SMESH_MeshEditor_i::GetLastCreatedNodes()
 {
   SMESH_TRY;
-  SMESH::long_array_var myLastCreatedNodes = new SMESH::long_array();
+  SMESH::smIdType_array_var myLastCreatedNodes = new SMESH::smIdType_array();
 
   const SMESH_SequenceOfElemPtr& aSeq = getEditor().GetLastCreatedNodes();
   myLastCreatedNodes->length( aSeq.size() );
@@ -635,11 +637,10 @@ SMESH::long_array* SMESH_MeshEditor_i::GetLastCreatedNodes()
  */
 //================================================================================
 
-SMESH::long_array* SMESH_MeshEditor_i::GetLastCreatedElems()
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType_array* SMESH_MeshEditor_i::GetLastCreatedElems()
 {
   SMESH_TRY;
-  SMESH::long_array_var myLastCreatedElems = new SMESH::long_array();
+  SMESH::smIdType_array_var myLastCreatedElems = new SMESH::smIdType_array();
 
   const SMESH_SequenceOfElemPtr& aSeq = getEditor().GetLastCreatedElems();
   myLastCreatedElems->length( aSeq.size() );
@@ -656,7 +657,7 @@ SMESH::long_array* SMESH_MeshEditor_i::GetLastCreatedElems()
 //purpose  : Clears sequences of last created elements and nodes 
 //=======================================================================
 
-void SMESH_MeshEditor_i::ClearLastCreated() throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::ClearLastCreated()
 {
   SMESH_TRY;
   getEditor().ClearLastCreated();
@@ -671,7 +672,6 @@ void SMESH_MeshEditor_i::ClearLastCreated() throw (SALOME::SALOME_Exception)
 //=======================================================================
 
 SMESH::ComputeError* SMESH_MeshEditor_i::GetLastError()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH::ComputeError_var errOut = new SMESH::ComputeError;
@@ -704,16 +704,16 @@ SMESH::ComputeError* SMESH_MeshEditor_i::GetLastError()
 struct SMESH_MeshEditor_i::_IDSource : public virtual POA_SMESH::SMESH_IDSource,
                                        public virtual SALOME::GenericObj_i
 {
-  SMESH::long_array     _ids;
-  SMESH::ElementType    _type;
-  SMESH::SMESH_Mesh_ptr _mesh;
-  SMESH::long_array* GetIDs()      { return new SMESH::long_array( _ids ); }
-  SMESH::long_array* GetMeshInfo() { return 0; }
-  SMESH::long_array* GetNbElementsByType()
+  SMESH::smIdType_array     _ids;
+  SMESH::ElementType        _type;
+  SMESH::SMESH_Mesh_ptr     _mesh;
+  SMESH::smIdType_array*    GetIDs()      { return new SMESH::smIdType_array( _ids ); }
+  SMESH::smIdType_array* GetMeshInfo() { return 0; }
+  SMESH::smIdType_array* GetNbElementsByType()
   {
-    SMESH::long_array_var aRes = new SMESH::long_array();
+    SMESH::smIdType_array_var aRes = new SMESH::smIdType_array();
     aRes->length(SMESH::NB_ELEMENT_TYPES);
-    for (int i = 0; i < SMESH::NB_ELEMENT_TYPES; i++)
+    for (smIdType i = 0; i < SMESH::NB_ELEMENT_TYPES; i++)
       aRes[ i ] = ( i == _type ) ? _ids.length() : 0;
     return aRes._retn();  
   }
@@ -735,8 +735,8 @@ struct SMESH_MeshEditor_i::_IDSource : public virtual POA_SMESH::SMESH_IDSource,
   }
 };
 
-SMESH::SMESH_IDSource_ptr SMESH_MeshEditor_i::MakeIDSource(const SMESH::long_array& ids,
-                                                           SMESH::ElementType       type)
+SMESH::SMESH_IDSource_ptr SMESH_MeshEditor_i::MakeIDSource(const SMESH::smIdType_array& ids,
+                                                           SMESH::ElementType           type)
 {
   _IDSource* idSrc = new _IDSource;
   idSrc->_mesh = myMesh_i->_this();
@@ -755,12 +755,12 @@ bool SMESH_MeshEditor_i::IsTemporaryIDSource( SMESH::SMESH_IDSource_ptr& idSourc
   return SMESH::DownCast<SMESH_MeshEditor_i::_IDSource*>( idSource );
 }
 
-CORBA::Long* SMESH_MeshEditor_i::GetTemporaryIDs( SMESH::SMESH_IDSource_ptr& idSource,
-                                                  int&                       nbIds)
+SMESH::smIdType* SMESH_MeshEditor_i::GetTemporaryIDs( SMESH::SMESH_IDSource_ptr& idSource,
+                                                      SMESH::smIdType&           nbIds)
 {
   if ( _IDSource* tmpIdSource = SMESH::DownCast<SMESH_MeshEditor_i::_IDSource*>( idSource ))
   {
-    nbIds = (int) tmpIdSource->_ids.length();
+    nbIds = (SMESH::smIdType) tmpIdSource->_ids.length();
     return & tmpIdSource->_ids[0];
   }
   nbIds = 0;
@@ -782,15 +782,14 @@ CORBA::Long* SMESH_MeshEditor_i::GetTemporaryIDs( SMESH::SMESH_IDSource_ptr& idS
 //=============================================================================
 
 CORBA::Boolean
-SMESH_MeshEditor_i::RemoveElements(const SMESH::long_array & IDsOfElements)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::RemoveElements(const SMESH::smIdType_array & IDsOfElements)
 {
   SMESH_TRY;
   initData();
 
-  list< int > IdList;
+  list< smIdType > IdList;
 
-  for ( CORBA::ULong i = 0; i < IDsOfElements.length(); i++ )
+  for ( SMESH::smIdType i = 0; i < IDsOfElements.length(); i++ )
     IdList.push_back( IDsOfElements[i] );
 
   // Update Python script
@@ -812,14 +811,13 @@ SMESH_MeshEditor_i::RemoveElements(const SMESH::long_array & IDsOfElements)
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::RemoveNodes(const SMESH::long_array & IDsOfNodes)
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::RemoveNodes(const SMESH::smIdType_array & IDsOfNodes)
 {
   SMESH_TRY;
   initData();
 
-  list< int > IdList;
-  for ( CORBA::ULong i = 0; i < IDsOfNodes.length(); i++)
+  list< smIdType > IdList;
+  for ( SMESH::smIdType i = 0; i < IDsOfNodes.length(); i++)
     IdList.push_back( IDsOfNodes[i] );
 
   // Update Python script
@@ -840,8 +838,7 @@ CORBA::Boolean SMESH_MeshEditor_i::RemoveNodes(const SMESH::long_array & IDsOfNo
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::RemoveOrphanNodes()
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::RemoveOrphanNodes()
 {
   SMESH_TRY;
   initData();
@@ -855,11 +852,11 @@ CORBA::Long SMESH_MeshEditor_i::RemoveOrphanNodes()
   SMESH::Controls::Filter::GetElementsId( getMeshDS(), predicate, seq );
 
   // remove orphan nodes (if there are any)
-  list< int > IdList( seq.begin(), seq.end() );
+  list< smIdType > IdList( seq.begin(), seq.end() );
 
-  int nbNodesBefore = myMesh->NbNodes();
+  SMESH::smIdType nbNodesBefore = myMesh->NbNodes();
   getEditor().Remove( IdList, true );
-  int nbNodesAfter = myMesh->NbNodes();
+  SMESH::smIdType nbNodesAfter = myMesh->NbNodes();
 
   declareMeshModified( /*isReComputeSafe=*/ IdList.size() == 0 ); // issue 0020693
   return nbNodesBefore - nbNodesAfter;
@@ -874,8 +871,7 @@ CORBA::Long SMESH_MeshEditor_i::RemoveOrphanNodes()
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddNode(CORBA::Double x,CORBA::Double y, CORBA::Double z)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddNode(CORBA::Double x,CORBA::Double y, CORBA::Double z)
 {
   SMESH_TRY;
   initData();
@@ -899,9 +895,8 @@ CORBA::Long SMESH_MeshEditor_i::AddNode(CORBA::Double x,CORBA::Double y, CORBA::
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::Add0DElement(CORBA::Long    IDOfNode,
-                                             CORBA::Boolean DuplicateElements)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::Add0DElement(SMESH::smIdType    IDOfNode,
+                                                 CORBA::Boolean DuplicateElements)
 {
   SMESH_TRY;
   initData();
@@ -930,8 +925,7 @@ CORBA::Long SMESH_MeshEditor_i::Add0DElement(CORBA::Long    IDOfNode,
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddBall(CORBA::Long IDOfNode, CORBA::Double diameter)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddBall(SMESH::smIdType IDOfNode, CORBA::Double diameter)
 {
   SMESH_TRY;
   initData();
@@ -960,18 +954,17 @@ CORBA::Long SMESH_MeshEditor_i::AddBall(CORBA::Long IDOfNode, CORBA::Double diam
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddEdge(const SMESH::long_array & IDsOfNodes)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddEdge(const SMESH::smIdType_array & IDsOfNodes)
 {
   SMESH_TRY;
   initData();
 
-  int NbNodes = IDsOfNodes.length();
+  SMESH::smIdType NbNodes = IDsOfNodes.length();
   SMDS_MeshElement* elem = 0;
   if (NbNodes == 2)
   {
-    CORBA::Long index1 = IDsOfNodes[0];
-    CORBA::Long index2 = IDsOfNodes[1];
+    SMESH::smIdType index1 = IDsOfNodes[0];
+    SMESH::smIdType index2 = IDsOfNodes[1];
     elem = getMeshDS()->AddEdge( getMeshDS()->FindNode(index1),
                                  getMeshDS()->FindNode(index2));
 
@@ -980,9 +973,9 @@ CORBA::Long SMESH_MeshEditor_i::AddEdge(const SMESH::long_array & IDsOfNodes)
                   << index1 << ", " << index2 <<" ])";
   }
   if (NbNodes == 3) {
-    CORBA::Long n1 = IDsOfNodes[0];
-    CORBA::Long n2 = IDsOfNodes[1];
-    CORBA::Long n12 = IDsOfNodes[2];
+    SMESH::smIdType n1 = IDsOfNodes[0];
+    SMESH::smIdType n2 = IDsOfNodes[1];
+    SMESH::smIdType n12 = IDsOfNodes[2];
     elem = getMeshDS()->AddEdge( getMeshDS()->FindNode(n1),
                                  getMeshDS()->FindNode(n2),
                                  getMeshDS()->FindNode(n12));
@@ -1004,8 +997,7 @@ CORBA::Long SMESH_MeshEditor_i::AddEdge(const SMESH::long_array & IDsOfNodes)
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddFace(const SMESH::long_array & IDsOfNodes)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddFace(const SMESH::smIdType_array & IDsOfNodes)
 {
   SMESH_TRY;
   initData();
@@ -1053,8 +1045,7 @@ CORBA::Long SMESH_MeshEditor_i::AddFace(const SMESH::long_array & IDsOfNodes)
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddPolygonalFace (const SMESH::long_array & IDsOfNodes)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddPolygonalFace (const SMESH::smIdType_array & IDsOfNodes)
 {
   SMESH_TRY;
   initData();
@@ -1065,6 +1056,12 @@ CORBA::Long SMESH_MeshEditor_i::AddPolygonalFace (const SMESH::long_array & IDsO
     if ( ! ( nodes[i] = getMeshDS()->FindNode( IDsOfNodes[i] )))
       return 0;
 
+  if ( NbNodes == 0 )
+  {
+    INFOS("Polygon without nodes is forbidden");
+    return 0;
+  }
+
   const SMDS_MeshElement* elem = getMeshDS()->AddPolygonalFace(nodes);
 
   // Update Python script
@@ -1083,8 +1080,7 @@ CORBA::Long SMESH_MeshEditor_i::AddPolygonalFace (const SMESH::long_array & IDsO
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddQuadPolygonalFace (const SMESH::long_array & IDsOfNodes)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddQuadPolygonalFace (const SMESH::smIdType_array & IDsOfNodes)
 {
   SMESH_TRY;
   initData();
@@ -1094,6 +1090,12 @@ CORBA::Long SMESH_MeshEditor_i::AddQuadPolygonalFace (const SMESH::long_array &
   for (int i = 0; i < NbNodes; i++)
     nodes[i] = getMeshDS()->FindNode(IDsOfNodes[i]);
 
+  if ( NbNodes == 0 )
+  {
+    INFOS("Polygon without nodes is forbidden");
+    return 0;
+  }
+
   const SMDS_MeshElement* elem = getMeshDS()->AddQuadPolygonalFace(nodes);
 
   // Update Python script
@@ -1113,8 +1115,7 @@ CORBA::Long SMESH_MeshEditor_i::AddQuadPolygonalFace (const SMESH::long_array &
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddVolume(const SMESH::long_array & IDsOfNodes)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddVolume(const SMESH::smIdType_array & IDsOfNodes)
 {
   SMESH_TRY;
   initData();
@@ -1173,9 +1174,8 @@ CORBA::Long SMESH_MeshEditor_i::AddVolume(const SMESH::long_array & IDsOfNodes)
  *  AddPolyhedralVolume
  */
 //=============================================================================
-CORBA::Long SMESH_MeshEditor_i::AddPolyhedralVolume (const SMESH::long_array & IDsOfNodes,
+SMESH::smIdType SMESH_MeshEditor_i::AddPolyhedralVolume (const SMESH::smIdType_array & IDsOfNodes,
                                                      const SMESH::long_array & Quantities)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1213,8 +1213,7 @@ CORBA::Long SMESH_MeshEditor_i::AddPolyhedralVolume (const SMESH::long_array & I
  */
 //=============================================================================
 
-CORBA::Long SMESH_MeshEditor_i::AddPolyhedralVolumeByFaces (const SMESH::long_array & IdsOfFaces)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::AddPolyhedralVolumeByFaces (const SMESH::smIdType_array & IdsOfFaces)
 {
   SMESH_TRY;
   initData();
@@ -1262,7 +1261,6 @@ SMESH::SMESH_IDSource_ptr
 SMESH_MeshEditor_i::Create0DElementsOnAllNodes(SMESH::SMESH_IDSource_ptr theObject,
                                                const char*               theGroupName,
                                                CORBA::Boolean            theDuplicateElements)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1274,7 +1272,7 @@ SMESH_MeshEditor_i::Create0DElementsOnAllNodes(SMESH::SMESH_IDSource_ptr theObje
   if ( idSourceToSet( theObject, getMeshDS(), elements, SMDSAbs_All, /*emptyIfIsMesh=*/1))
     getEditor().Create0DElementsOnAllNodes( elements, elems0D, theDuplicateElements );
 
-  SMESH::long_array_var newElems = new SMESH::long_array;
+  SMESH::smIdType_array_var newElems = new SMESH::smIdType_array;
   newElems->length( elems0D.size() );
   TIDSortedElemSet::iterator eIt = elems0D.begin();
   for ( size_t i = 0; i < elems0D.size(); ++i, ++eIt )
@@ -1331,8 +1329,7 @@ SMESH_MeshEditor_i::Create0DElementsOnAllNodes(SMESH::SMESH_IDSource_ptr theObje
  */
 //=============================================================================
 
-void SMESH_MeshEditor_i::SetNodeOnVertex(CORBA::Long NodeID, CORBA::Long VertexID)
-  throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::SetNodeOnVertex(SMESH::smIdType NodeID, CORBA::Long VertexID)
 {
   SMESH_TRY;
 
@@ -1365,9 +1362,8 @@ void SMESH_MeshEditor_i::SetNodeOnVertex(CORBA::Long NodeID, CORBA::Long VertexI
  */
 //=============================================================================
 
-void SMESH_MeshEditor_i::SetNodeOnEdge(CORBA::Long NodeID, CORBA::Long EdgeID,
+void SMESH_MeshEditor_i::SetNodeOnEdge(SMESH::smIdType NodeID, CORBA::Long EdgeID,
                                        CORBA::Double paramOnEdge)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
 
@@ -1386,8 +1382,11 @@ void SMESH_MeshEditor_i::SetNodeOnEdge(CORBA::Long NodeID, CORBA::Long EdgeID,
   Standard_Real f,l;
   BRep_Tool::Range( TopoDS::Edge( shape ), f,l);
   if ( paramOnEdge < f || paramOnEdge > l )
-    THROW_SALOME_CORBA_EXCEPTION("Invalid paramOnEdge", SALOME::BAD_PARAM);
-
+  {
+    SMESH_Comment txt("Invalid paramOnEdge. It must vary in range [ ");
+    txt << f << ", " << l << " ]";
+    THROW_SALOME_CORBA_EXCEPTION(txt.c_str(), SALOME::BAD_PARAM);
+  }
   mesh->SetNodeOnEdge( node, EdgeID, paramOnEdge );
 
   myMesh->SetIsModified( true );
@@ -1406,9 +1405,8 @@ void SMESH_MeshEditor_i::SetNodeOnEdge(CORBA::Long NodeID, CORBA::Long EdgeID,
  */
 //=============================================================================
 
-void SMESH_MeshEditor_i::SetNodeOnFace(CORBA::Long NodeID, CORBA::Long FaceID,
+void SMESH_MeshEditor_i::SetNodeOnFace(SMESH::smIdType NodeID, CORBA::Long FaceID,
                                        CORBA::Double u, CORBA::Double v)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESHDS_Mesh * mesh = getMeshDS();
@@ -1430,14 +1428,11 @@ void SMESH_MeshEditor_i::SetNodeOnFace(CORBA::Long NodeID, CORBA::Long FaceID,
                  v > surf.LastVParameter() );
 
   if ( isOut ) {
-#ifdef _DEBUG_
-    MESSAGE ( "FACE " << FaceID << " (" << u << "," << v << ") out of "
-              << " u( " <<  surf.FirstUParameter()
-              << "," <<  surf.LastUParameter()
-              << ") v( " <<  surf.FirstVParameter()
-              << "," <<  surf.LastVParameter() << ")" );
-#endif
-    THROW_SALOME_CORBA_EXCEPTION("Invalid UV", SALOME::BAD_PARAM);
+    SMESH_Comment txt("Invalid UV. U must vary in range [ ");
+    txt << surf.FirstUParameter() << ", " << surf.LastUParameter() << " ], ";
+    txt << "V must vary in range [ ";
+    txt << surf.FirstVParameter() << ", " << surf.LastVParameter() << " ]";
+    THROW_SALOME_CORBA_EXCEPTION(txt.c_str(), SALOME::BAD_PARAM);
   }
 
   mesh->SetNodeOnFace( node, FaceID, u, v );
@@ -1455,8 +1450,7 @@ void SMESH_MeshEditor_i::SetNodeOnFace(CORBA::Long NodeID, CORBA::Long FaceID,
  */
 //=============================================================================
 
-void SMESH_MeshEditor_i::SetNodeInVolume(CORBA::Long NodeID, CORBA::Long SolidID)
-  throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::SetNodeInVolume(SMESH::smIdType NodeID, CORBA::Long SolidID)
 {
   SMESH_TRY;
   SMESHDS_Mesh * mesh = getMeshDS();
@@ -1485,9 +1479,8 @@ void SMESH_MeshEditor_i::SetNodeInVolume(CORBA::Long NodeID, CORBA::Long SolidID
  */
 //=============================================================================
 
-void SMESH_MeshEditor_i::SetMeshElementOnShape(CORBA::Long ElementID,
+void SMESH_MeshEditor_i::SetMeshElementOnShape(SMESH::smIdType ElementID,
                                                CORBA::Long ShapeID)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESHDS_Mesh * mesh = getMeshDS();
@@ -1518,9 +1511,8 @@ void SMESH_MeshEditor_i::SetMeshElementOnShape(CORBA::Long ElementID,
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::InverseDiag(CORBA::Long NodeID1,
-                                               CORBA::Long NodeID2)
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::InverseDiag(SMESH::smIdType NodeID1,
+                                               SMESH::smIdType NodeID2)
 {
   SMESH_TRY;
   initData();
@@ -1549,9 +1541,8 @@ CORBA::Boolean SMESH_MeshEditor_i::InverseDiag(CORBA::Long NodeID1,
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::DeleteDiag(CORBA::Long NodeID1,
-                                              CORBA::Long NodeID2)
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::DeleteDiag(SMESH::smIdType NodeID1,
+                                              SMESH::smIdType NodeID2)
 {
   SMESH_TRY;
   initData();
@@ -1582,15 +1573,14 @@ CORBA::Boolean SMESH_MeshEditor_i::DeleteDiag(CORBA::Long NodeID1,
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::Reorient(const SMESH::long_array & IDsOfElements)
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::Reorient(const SMESH::smIdType_array & IDsOfElements)
 {
   SMESH_TRY;
   initData();
 
-  for ( CORBA::ULong i = 0; i < IDsOfElements.length(); i++ )
+  for ( SMESH::smIdType i = 0; i < IDsOfElements.length(); i++ )
   {
-    CORBA::Long index = IDsOfElements[i];
+    SMESH::smIdType index = IDsOfElements[i];
     const SMDS_MeshElement * elem = getMeshDS()->FindElement(index);
     if ( elem )
       getEditor().Reorient( elem );
@@ -1612,7 +1602,6 @@ CORBA::Boolean SMESH_MeshEditor_i::Reorient(const SMESH::long_array & IDsOfEleme
 //=============================================================================
 
 CORBA::Boolean SMESH_MeshEditor_i::ReorientObject(SMESH::SMESH_IDSource_ptr theObject)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1621,7 +1610,7 @@ CORBA::Boolean SMESH_MeshEditor_i::ReorientObject(SMESH::SMESH_IDSource_ptr theO
 
   prepareIdSource( theObject );
 
-  SMESH::long_array_var anElementsId = theObject->GetIDs();
+  SMESH::smIdType_array_var anElementsId = theObject->GetIDs();
   CORBA::Boolean isDone = Reorient(anElementsId);
 
   // Update Python script
@@ -1649,7 +1638,6 @@ CORBA::Long SMESH_MeshEditor_i::Reorient2D(SMESH::SMESH_IDSource_ptr the2Dgroup,
                                            const SMESH::DirStruct&   theDirection,
                                            CORBA::Long               theFace,
                                            const SMESH::PointStruct& thePoint)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData(/*deleteSearchers=*/false);
@@ -1733,7 +1721,6 @@ CORBA::Long SMESH_MeshEditor_i::Reorient2D(SMESH::SMESH_IDSource_ptr the2Dgroup,
 CORBA::Long SMESH_MeshEditor_i::Reorient2DBy3D(const SMESH::ListOfIDSources& faceGroups,
                                                SMESH::SMESH_IDSource_ptr     volumeGroup,
                                                CORBA::Boolean                outsideNormal)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1781,10 +1768,9 @@ CORBA::Long SMESH_MeshEditor_i::Reorient2DBy3D(const SMESH::ListOfIDSources& fac
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::TriToQuad (const SMESH::long_array &   IDsOfElements,
+CORBA::Boolean SMESH_MeshEditor_i::TriToQuad (const SMESH::smIdType_array &   IDsOfElements,
                                               SMESH::NumericalFunctor_ptr Criterion,
                                               CORBA::Double               MaxAngle)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1833,7 +1819,6 @@ CORBA::Boolean SMESH_MeshEditor_i::TriToQuad (const SMESH::long_array &   IDsOfE
 CORBA::Boolean SMESH_MeshEditor_i::TriToQuadObject (SMESH::SMESH_IDSource_ptr   theObject,
                                                     SMESH::NumericalFunctor_ptr Criterion,
                                                     CORBA::Double               MaxAngle)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1841,7 +1826,7 @@ CORBA::Boolean SMESH_MeshEditor_i::TriToQuadObject (SMESH::SMESH_IDSource_ptr
   TPythonDump aTPythonDump;  // suppress dump in TriToQuad()
 
   prepareIdSource( theObject );
-  SMESH::long_array_var anElementsId = theObject->GetIDs();
+  SMESH::smIdType_array_var anElementsId = theObject->GetIDs();
   CORBA::Boolean isDone = TriToQuad(anElementsId, Criterion, MaxAngle);
 
   if ( !myIsPreviewMode ) {
@@ -1865,9 +1850,8 @@ CORBA::Boolean SMESH_MeshEditor_i::TriToQuadObject (SMESH::SMESH_IDSource_ptr
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::QuadToTri (const SMESH::long_array &   IDsOfElements,
+CORBA::Boolean SMESH_MeshEditor_i::QuadToTri (const SMESH::smIdType_array &   IDsOfElements,
                                               SMESH::NumericalFunctor_ptr Criterion)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1905,7 +1889,6 @@ CORBA::Boolean SMESH_MeshEditor_i::QuadToTri (const SMESH::long_array &   IDsOfE
 
 CORBA::Boolean SMESH_MeshEditor_i::QuadToTriObject (SMESH::SMESH_IDSource_ptr   theObject,
                                                     SMESH::NumericalFunctor_ptr Criterion)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1913,7 +1896,7 @@ CORBA::Boolean SMESH_MeshEditor_i::QuadToTriObject (SMESH::SMESH_IDSource_ptr
   TPythonDump aTPythonDump;  // suppress dump in QuadToTri()
 
   prepareIdSource( theObject );
-  SMESH::long_array_var anElementsId = theObject->GetIDs();
+  SMESH::smIdType_array_var anElementsId = theObject->GetIDs();
   CORBA::Boolean isDone = QuadToTri(anElementsId, Criterion);
 
   SMESH::NumericalFunctor_i* aNumericalFunctor =
@@ -1937,7 +1920,6 @@ CORBA::Boolean SMESH_MeshEditor_i::QuadToTriObject (SMESH::SMESH_IDSource_ptr
 //================================================================================
 
 void SMESH_MeshEditor_i::QuadTo4Tri (SMESH::SMESH_IDSource_ptr theObject)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1950,6 +1932,8 @@ void SMESH_MeshEditor_i::QuadTo4Tri (SMESH::SMESH_IDSource_ptr theObject)
   getEditor().QuadTo4Tri( faces );
   TPythonDump() << this << ".QuadTo4Tri( " << theObject << " )";
 
+  declareMeshModified( /*isReComputeSafe=*/false );
+
   SMESH_CATCH( SMESH::throwCorbaException );
 }
 
@@ -1959,9 +1943,8 @@ void SMESH_MeshEditor_i::QuadTo4Tri (SMESH::SMESH_IDSource_ptr theObject)
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::SplitQuad (const SMESH::long_array & IDsOfElements,
+CORBA::Boolean SMESH_MeshEditor_i::SplitQuad (const SMESH::smIdType_array & IDsOfElements,
                                               CORBA::Boolean            Diag13)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1991,7 +1974,6 @@ CORBA::Boolean SMESH_MeshEditor_i::SplitQuad (const SMESH::long_array & IDsOfEle
 
 CORBA::Boolean SMESH_MeshEditor_i::SplitQuadObject (SMESH::SMESH_IDSource_ptr theObject,
                                                     CORBA::Boolean            Diag13)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -1999,7 +1981,7 @@ CORBA::Boolean SMESH_MeshEditor_i::SplitQuadObject (SMESH::SMESH_IDSource_ptr th
   TPythonDump aTPythonDump;  // suppress dump in SplitQuad()
 
   prepareIdSource( theObject );
-  SMESH::long_array_var anElementsId = theObject->GetIDs();
+  SMESH::smIdType_array_var anElementsId = theObject->GetIDs();
   CORBA::Boolean isDone = SplitQuad(anElementsId, Diag13);
 
   // Update Python script
@@ -2026,7 +2008,6 @@ CORBA::Boolean SMESH_MeshEditor_i::SplitQuadObject (SMESH::SMESH_IDSource_ptr th
 
 CORBA::Long SMESH_MeshEditor_i::BestSplit (CORBA::Long                 IDOfQuad,
                                            SMESH::NumericalFunctor_ptr Criterion)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2059,16 +2040,16 @@ CORBA::Long SMESH_MeshEditor_i::BestSplit (CORBA::Long                 IDOfQuad,
 
 void SMESH_MeshEditor_i::SplitVolumesIntoTetra (SMESH::SMESH_IDSource_ptr elems,
                                                 CORBA::Short              methodFlags)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
 
   ::SMESH_MeshEditor::TFacetOfElem elemSet;
   const int noneFacet = -1;
-  SMDS_ElemIteratorPtr volIt = myMesh_i->GetElements( elems, SMESH::VOLUME );
-  while( volIt->more() )
-    elemSet.insert( elemSet.end(), make_pair( volIt->next(), noneFacet ));
+  prepareIdSource( elems );
+  if ( SMDS_ElemIteratorPtr volIt = myMesh_i->GetElements( elems, SMESH::VOLUME ))
+    while ( volIt->more() )
+      elemSet.insert( elemSet.end(), make_pair( volIt->next(), noneFacet ));
 
   getEditor().SplitVolumes( elemSet, int( methodFlags ));
   declareMeshModified( /*isReComputeSafe=*/true ); // it does not influence Compute()
@@ -2096,7 +2077,6 @@ void SMESH_MeshEditor_i::SplitHexahedraIntoPrisms( SMESH::SMESH_IDSource_ptr  el
                                                    const SMESH::DirStruct&    facetToSplitNormal,
                                                    CORBA::Short               methodFlags,
                                                    CORBA::Boolean             allDomains)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2109,7 +2089,8 @@ void SMESH_MeshEditor_i::SplitHexahedraIntoPrisms( SMESH::SMESH_IDSource_ptr  el
                             facetToSplitNormal.PS.y,
                             facetToSplitNormal.PS.z ));
   TIDSortedElemSet elemSet;
-  SMESH::long_array_var anElementsId = elems->GetIDs();
+  prepareIdSource( elems );
+  SMESH::smIdType_array_var anElementsId = elems->GetIDs();
   SMDS_MeshElement::GeomFilter filter( SMDSGeom_HEXA );
   arrayToSet( anElementsId, getMeshDS(), elemSet, SMDSAbs_Volume, &filter );
 
@@ -2156,7 +2137,6 @@ void SMESH_MeshEditor_i::SplitHexahedraIntoPrisms( SMESH::SMESH_IDSource_ptr  el
 //================================================================================
 
 void SMESH_MeshEditor_i::SplitBiQuadraticIntoLinear(const SMESH::ListOfIDSources& theElems)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2187,12 +2167,11 @@ void SMESH_MeshEditor_i::SplitBiQuadraticIntoLinear(const SMESH::ListOfIDSources
 //=======================================================================
 
 CORBA::Boolean
-SMESH_MeshEditor_i::Smooth(const SMESH::long_array &              IDsOfElements,
-                           const SMESH::long_array &              IDsOfFixedNodes,
-                           CORBA::Long                            MaxNbOfIterations,
+SMESH_MeshEditor_i::Smooth(const SMESH::smIdType_array &          IDsOfElements,
+                           const SMESH::smIdType_array &          IDsOfFixedNodes,
+                           CORBA::Short                           MaxNbOfIterations,
                            CORBA::Double                          MaxAspectRatio,
                            SMESH::SMESH_MeshEditor::Smooth_Method Method)
-  throw (SALOME::SALOME_Exception)
 {
   return smooth( IDsOfElements, IDsOfFixedNodes, MaxNbOfIterations,
                  MaxAspectRatio, Method, false );
@@ -2205,12 +2184,11 @@ SMESH_MeshEditor_i::Smooth(const SMESH::long_array &              IDsOfElements,
 //=======================================================================
 
 CORBA::Boolean
-SMESH_MeshEditor_i::SmoothParametric(const SMESH::long_array &              IDsOfElements,
-                                     const SMESH::long_array &              IDsOfFixedNodes,
-                                     CORBA::Long                            MaxNbOfIterations,
+SMESH_MeshEditor_i::SmoothParametric(const SMESH::smIdType_array &          IDsOfElements,
+                                     const SMESH::smIdType_array &          IDsOfFixedNodes,
+                                     CORBA::Short                           MaxNbOfIterations,
                                      CORBA::Double                          MaxAspectRatio,
                                      SMESH::SMESH_MeshEditor::Smooth_Method Method)
-  throw (SALOME::SALOME_Exception)
 {
   return smooth( IDsOfElements, IDsOfFixedNodes, MaxNbOfIterations,
                  MaxAspectRatio, Method, true );
@@ -2224,11 +2202,10 @@ SMESH_MeshEditor_i::SmoothParametric(const SMESH::long_array &              IDsO
 
 CORBA::Boolean
 SMESH_MeshEditor_i::SmoothObject(SMESH::SMESH_IDSource_ptr              theObject,
-                                 const SMESH::long_array &              IDsOfFixedNodes,
-                                 CORBA::Long                            MaxNbOfIterations,
+                                 const SMESH::smIdType_array &          IDsOfFixedNodes,
+                                 CORBA::Short                           MaxNbOfIterations,
                                  CORBA::Double                          MaxAspectRatio,
                                  SMESH::SMESH_MeshEditor::Smooth_Method Method)
-  throw (SALOME::SALOME_Exception)
 {
   return smoothObject (theObject, IDsOfFixedNodes, MaxNbOfIterations,
                        MaxAspectRatio, Method, false);
@@ -2242,11 +2219,10 @@ SMESH_MeshEditor_i::SmoothObject(SMESH::SMESH_IDSource_ptr              theObjec
 
 CORBA::Boolean
 SMESH_MeshEditor_i::SmoothParametricObject(SMESH::SMESH_IDSource_ptr              theObject,
-                                           const SMESH::long_array &              IDsOfFixedNodes,
-                                           CORBA::Long                            MaxNbOfIterations,
+                                           const SMESH::smIdType_array &          IDsOfFixedNodes,
+                                           CORBA::Short                           MaxNbOfIterations,
                                            CORBA::Double                          MaxAspectRatio,
                                            SMESH::SMESH_MeshEditor::Smooth_Method Method)
-  throw (SALOME::SALOME_Exception)
 {
   return smoothObject (theObject, IDsOfFixedNodes, MaxNbOfIterations,
                        MaxAspectRatio, Method, true);
@@ -2260,13 +2236,12 @@ SMESH_MeshEditor_i::SmoothParametricObject(SMESH::SMESH_IDSource_ptr
 //=============================================================================
 
 CORBA::Boolean
-SMESH_MeshEditor_i::smooth(const SMESH::long_array &              IDsOfElements,
-                           const SMESH::long_array &              IDsOfFixedNodes,
-                           CORBA::Long                            MaxNbOfIterations,
+SMESH_MeshEditor_i::smooth(const SMESH::smIdType_array &          IDsOfElements,
+                           const SMESH::smIdType_array &          IDsOfFixedNodes,
+                           CORBA::Short                           MaxNbOfIterations,
                            CORBA::Double                          MaxAspectRatio,
                            SMESH::SMESH_MeshEditor::Smooth_Method Method,
                            bool                                   IsParametric)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2277,8 +2252,8 @@ SMESH_MeshEditor_i::smooth(const SMESH::long_array &              IDsOfElements,
   arrayToSet(IDsOfElements, aMesh, elements, SMDSAbs_Face);
 
   set<const SMDS_MeshNode*> fixedNodes;
-  for ( CORBA::ULong i = 0; i < IDsOfFixedNodes.length(); i++) {
-    CORBA::Long index = IDsOfFixedNodes[i];
+  for ( SMESH::smIdType i = 0; i < IDsOfFixedNodes.length(); i++) {
+    SMESH::smIdType index = IDsOfFixedNodes[i];
     const SMDS_MeshNode * node = aMesh->FindNode(index);
     if ( node )
       fixedNodes.insert( node );
@@ -2315,12 +2290,11 @@ SMESH_MeshEditor_i::smooth(const SMESH::long_array &              IDsOfElements,
 
 CORBA::Boolean
 SMESH_MeshEditor_i::smoothObject(SMESH::SMESH_IDSource_ptr              theObject,
-                                 const SMESH::long_array &              IDsOfFixedNodes,
-                                 CORBA::Long                            MaxNbOfIterations,
+                                 const SMESH::smIdType_array &          IDsOfFixedNodes,
+                                 CORBA::Short                           MaxNbOfIterations,
                                  CORBA::Double                          MaxAspectRatio,
                                  SMESH::SMESH_MeshEditor::Smooth_Method Method,
                                  bool                                   IsParametric)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2328,7 +2302,7 @@ SMESH_MeshEditor_i::smoothObject(SMESH::SMESH_IDSource_ptr              theObjec
   TPythonDump aTPythonDump;  // suppress dump in smooth()
 
   prepareIdSource( theObject );
-  SMESH::long_array_var anElementsId = theObject->GetIDs();
+  SMESH::smIdType_array_var anElementsId = theObject->GetIDs();
   CORBA::Boolean isDone = smooth (anElementsId, IDsOfFixedNodes, MaxNbOfIterations,
                                   MaxAspectRatio, Method, IsParametric);
 
@@ -2354,7 +2328,6 @@ SMESH_MeshEditor_i::smoothObject(SMESH::SMESH_IDSource_ptr              theObjec
 //=============================================================================
 
 void SMESH_MeshEditor_i::RenumberNodes()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   // Update Python script
@@ -2372,7 +2345,6 @@ void SMESH_MeshEditor_i::RenumberNodes()
 //=============================================================================
 
 void SMESH_MeshEditor_i::RenumberElements()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   // Update Python script
@@ -2390,7 +2362,6 @@ void SMESH_MeshEditor_i::RenumberElements()
 //=======================================================================
 
 SMESH::ListOfGroups* SMESH_MeshEditor_i::getGroups(const std::list<int>* groupIDs)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   if ( !groupIDs )
@@ -2416,15 +2387,14 @@ SMESH_MeshEditor_i::RotationSweepObjects(const SMESH::ListOfIDSources & theNodes
                                          CORBA::Long                    theNbOfSteps,
                                          CORBA::Double                  theTolerance,
                                          const bool                     theMakeGroups)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
 
   TIDSortedElemSet elemsNodes[2];
   for ( int i = 0, nb = theNodes.length(); i < nb; ++i ) {
-    SMDS_ElemIteratorPtr nIt = myMesh_i->GetElements( theNodes[i], SMESH::NODE );
-    while ( nIt->more() ) elemsNodes[1].insert( nIt->next() );
+    if ( SMDS_ElemIteratorPtr nIt = myMesh_i->GetElements( theNodes[i], SMESH::NODE ))
+      while ( nIt->more() ) elemsNodes[1].insert( nIt->next() );
   }
   for ( int i = 0, nb = theEdges.length(); i < nb; ++i )
     idSourceToSet( theEdges[i], getMeshDS(), elemsNodes[0], SMDSAbs_Edge );
@@ -2490,7 +2460,8 @@ namespace MeshEditor_I
     bool myIsExtrusionByNormal;
 
     static int makeFlags( CORBA::Boolean MakeGroups,
-                          CORBA::Boolean LinearVariation = false,
+                          CORBA::Boolean ScaleVariation = false,
+                          CORBA::Boolean AngleVariation = false,
                           CORBA::Boolean ByAverageNormal = false,
                           CORBA::Boolean UseInputElemsOnly = false,
                           CORBA::Long    Flags = 0,
@@ -2499,7 +2470,8 @@ namespace MeshEditor_I
       if ( MakeGroups       ) Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_GROUPS;
       if ( ByAverageNormal  ) Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_BY_AVG_NORMAL;
       if ( UseInputElemsOnly) Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_USE_INPUT_ELEMS_ONLY;
-      if ( LinearVariation  ) Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_SCALE_LINEAR_VARIATION;
+      if ( ScaleVariation  )  Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_SCALE_LINEAR_VARIATION;
+      if ( AngleVariation  )  Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_ANGLE_LINEAR_VARIATION;
       if ( MakeBoundary     ) Flags |= ::SMESH_MeshEditor::EXTRUSION_FLAG_BOUNDARY;
       return Flags;
     }
@@ -2507,7 +2479,9 @@ namespace MeshEditor_I
     ExtrusionParams(const SMESH::DirStruct &    theDir,
                     CORBA::Long                 theNbOfSteps,
                     const SMESH::double_array & theScaleFactors,
-                    CORBA::Boolean              theLinearVariation,
+                    CORBA::Boolean              theScaleVariation,
+                    const SMESH::double_array & theAngles,
+                    CORBA::Boolean              theAngleVariation,
                     const SMESH::double_array & theBasePoint,
                     CORBA::Boolean              theMakeGroups):
       ::SMESH_MeshEditor::ExtrusParam ( gp_Vec( theDir.PS.x,
@@ -2515,8 +2489,9 @@ namespace MeshEditor_I
                                                 theDir.PS.z ),
                                         theNbOfSteps,
                                         toList( theScaleFactors ),
+                                        toList( theAngles ),
                                         TBasePoint( theBasePoint ),
-                                        makeFlags( theMakeGroups, theLinearVariation )),
+                                        makeFlags( theMakeGroups, theScaleVariation, theAngleVariation )),
       myIsExtrusionByNormal( false )
     {
     }
@@ -2531,8 +2506,9 @@ namespace MeshEditor_I
                                                 theDir.PS.z ),
                                         theNbOfSteps,
                                         std::list<double>(),
+                                        std::list<double>(),
                                         0,
-                                        makeFlags( theMakeGroups, false, false, false,
+                                        makeFlags( theMakeGroups, false, false, false, false,
                                                    theExtrFlags, false ),
                                         theSewTolerance ),
       myIsExtrusionByNormal( false )
@@ -2547,7 +2523,7 @@ namespace MeshEditor_I
                     CORBA::Boolean theMakeGroups ):
       ::SMESH_MeshEditor::ExtrusParam ( theStepSize, 
                                         theNbOfSteps,
-                                        makeFlags( theMakeGroups, false,
+                                        makeFlags( theMakeGroups, false, false,
                                                    theByAverageNormal, theUseInputElemsOnly ),
                                         theDim),
       myIsExtrusionByNormal( true )
@@ -2559,8 +2535,6 @@ namespace MeshEditor_I
       Flags() &= ~(::SMESH_MeshEditor::EXTRUSION_FLAG_GROUPS);
     }
 
-  private:
-
     static std::list<double> toList( const SMESH::double_array & theScaleFactors )
     {
       std::list<double> scales;
@@ -2569,6 +2543,8 @@ namespace MeshEditor_I
       return scales;
     }
 
+  private:
+
     // structure used to convert SMESH::double_array to gp_XYZ*
     struct TBasePoint
     {
@@ -2607,22 +2583,23 @@ SMESH_MeshEditor_i::ExtrusionSweepObjects(const SMESH::ListOfIDSources & theNode
                                           const SMESH::ListOfIDSources & theFaces,
                                           const SMESH::DirStruct &       theStepVector,
                                           CORBA::Long                    theNbOfSteps,
+                                          CORBA::Boolean                 theToMakeGroups,
                                           const SMESH::double_array &    theScaleFactors,
-                                          CORBA::Boolean                 theLinearVariation,
+                                          CORBA::Boolean                 theScalesVariation,
                                           const SMESH::double_array &    theBasePoint,
-                                          CORBA::Boolean                 theToMakeGroups)
-  throw (SALOME::SALOME_Exception)
+                                          const SMESH::double_array &    theAngles,
+                                          CORBA::Boolean                 theAnglesVariation)
 {
   SMESH_TRY;
   initData();
 
-  ExtrusionParams params( theStepVector, theNbOfSteps, theScaleFactors,
-                          theLinearVariation, theBasePoint, theToMakeGroups );
+  ExtrusionParams params( theStepVector, theNbOfSteps, theScaleFactors, theScalesVariation,
+                          theAngles, theAnglesVariation, theBasePoint, theToMakeGroups );
 
   TIDSortedElemSet elemsNodes[2];
   for ( int i = 0, nb = theNodes.length(); i < nb; ++i ) {
-    SMDS_ElemIteratorPtr nIt = myMesh_i->GetElements( theNodes[i], SMESH::NODE );
-    while ( nIt->more() ) elemsNodes[1].insert( nIt->next() );
+    if ( SMDS_ElemIteratorPtr nIt = myMesh_i->GetElements( theNodes[i], SMESH::NODE ))
+      while ( nIt->more() ) elemsNodes[1].insert( nIt->next() );
   }
   for ( int i = 0, nb = theEdges.length(); i < nb; ++i )
     idSourceToSet( theEdges[i], getMeshDS(), elemsNodes[0], SMDSAbs_Edge );
@@ -2658,12 +2635,17 @@ SMESH_MeshEditor_i::ExtrusionSweepObjects(const SMESH::ListOfIDSources & theNode
   {
     dumpGroupsList( aPythonDump, aGroups );
     aPythonDump << this<< ".ExtrusionSweepObjects( "
-                << theNodes             << ", "
-                << theEdges             << ", "
-                << theFaces             << ", "
-                << theStepVector        << ", "
-                << TVar( theNbOfSteps ) << ", "
-                << theToMakeGroups      << " )";
+                << theNodes                << ", "
+                << theEdges                << ", "
+                << theFaces                << ", "
+                << theStepVector           << ", "
+                << TVar( theNbOfSteps )    << ", "
+                << theToMakeGroups         << ", "
+                << TVar( theScaleFactors ) << ", "
+                << theScalesVariation      << ", "
+                << TVar( theBasePoint )    << ", "
+                << TVar( theAngles )       << ", "
+                << theAnglesVariation      << " )";
   }
   else
   {
@@ -2689,7 +2671,6 @@ SMESH_MeshEditor_i::ExtrusionByNormal(const SMESH::ListOfIDSources& objects,
                                       CORBA::Boolean                useInputElemsOnly,
                                       CORBA::Boolean                makeGroups,
                                       CORBA::Short                  dim)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2760,13 +2741,12 @@ SMESH_MeshEditor_i::ExtrusionByNormal(const SMESH::ListOfIDSources& objects,
 //=======================================================================
 
 SMESH::ListOfGroups*
-SMESH_MeshEditor_i::AdvancedExtrusion(const SMESH::long_array & theIDsOfElements,
-                                      const SMESH::DirStruct &  theStepVector,
-                                      CORBA::Long               theNbOfSteps,
-                                      CORBA::Long               theExtrFlags,
-                                      CORBA::Double             theSewTolerance,
-                                      CORBA::Boolean            theMakeGroups)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::AdvancedExtrusion(const SMESH::smIdType_array & theIDsOfElements,
+                                      const SMESH::DirStruct &      theStepVector,
+                                      CORBA::Long                   theNbOfSteps,
+                                      CORBA::Long                   theExtrFlags,
+                                      CORBA::Double                 theSewTolerance,
+                                      CORBA::Boolean                theMakeGroups)
 {
   SMESH_TRY;
   initData();
@@ -2841,17 +2821,18 @@ SMESH::ListOfGroups*
 SMESH_MeshEditor_i::ExtrusionAlongPathObjects(const SMESH::ListOfIDSources & theNodes,
                                               const SMESH::ListOfIDSources & theEdges,
                                               const SMESH::ListOfIDSources & theFaces,
-                                              SMESH::SMESH_IDSource_ptr      thePathMesh,
+                                              SMESH::SMESH_IDSource_ptr      thePathObject,
                                               GEOM::GEOM_Object_ptr          thePathShape,
-                                              CORBA::Long                    theNodeStart,
+                                              SMESH::smIdType                theNodeStart,
                                               CORBA::Boolean                 theHasAngles,
                                               const SMESH::double_array &    theAngles,
-                                              CORBA::Boolean                 theLinearVariation,
+                                              CORBA::Boolean                 theAnglesVariation,
                                               CORBA::Boolean                 theHasRefPoint,
                                               const SMESH::PointStruct &     theRefPoint,
                                               bool                           theMakeGroups,
+                                              const SMESH::double_array &    theScaleFactors,
+                                              CORBA::Boolean                 theScalesVariation,
                                               SMESH::SMESH_MeshEditor::Extrusion_Error& theError)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -2859,61 +2840,73 @@ SMESH_MeshEditor_i::ExtrusionAlongPathObjects(const SMESH::ListOfIDSources & the
   SMESH::ListOfGroups_var aGroups = new SMESH::ListOfGroups;
 
   theError = SMESH::SMESH_MeshEditor::EXTR_BAD_PATH_SHAPE;
-  if ( thePathMesh->_is_nil() )
+  if ( thePathObject->_is_nil() )
     return aGroups._retn();
 
-  // get a sub-mesh
-  SMESH_subMesh* aSubMesh = 0;
-  SMESH_Mesh_i* aMeshImp = SMESH::DownCast<SMESH_Mesh_i*>( thePathMesh );
-  if ( thePathShape->_is_nil() )
+
+  SMDS_ElemIteratorPtr pathEdgesIterator;
+
+  SMESH_Mesh_i* aMeshImp = SMESH::DownCast<SMESH_Mesh_i*>( thePathObject );
+  if ( !CORBA::is_nil( thePathShape ) && aMeshImp )
   {
-    // thePathMesh should be either a sub-mesh or a mesh with 1D elements only
-    if ( SMESH_subMesh_i* sm = SMESH::DownCast<SMESH_subMesh_i*>( thePathMesh ))
+    // get a sub-mesh of thePathShape
+    TopoDS_Shape     aShape = SMESH_Gen_i::GetSMESHGen()->GeomObjectToShape( thePathShape );
+    SMESH_subMesh* aSubMesh = aMeshImp->GetImpl().GetSubMesh( aShape );
+    if ( !aSubMesh )
+      return aGroups._retn();
+
+    if ( !aSubMesh->GetSubMeshDS() )
     {
-      SMESH::SMESH_Mesh_var mesh = thePathMesh->GetMesh();
-      aMeshImp = SMESH::DownCast<SMESH_Mesh_i*>( mesh );
-      if ( !aMeshImp ) return aGroups._retn();
-      aSubMesh = aMeshImp->GetImpl().GetSubMeshContaining( sm->GetId() );
-      if ( !aSubMesh ) return aGroups._retn();
+      SMESHDS_Mesh * meshDS = aMeshImp->GetImpl().GetMeshDS();
+      meshDS->AddCompoundSubmesh( aShape, TopAbs_EDGE );
+      if ( !aSubMesh->GetSubMeshDS() )
+        return aGroups._retn();
     }
-    else if ( !aMeshImp ||
-              aMeshImp->NbEdges() != aMeshImp->NbElements() )
-    {
+    theError = SMESH::SMESH_MeshEditor::EXTR_PATH_NOT_EDGE;
+    pathEdgesIterator = aSubMesh->GetSubMeshDS()->GetElements();
+    if ( !pathEdgesIterator->more() ||
+         pathEdgesIterator->next()->GetType() != SMDSAbs_Edge )
       return aGroups._retn();
-    }
+
+    pathEdgesIterator = aSubMesh->GetSubMeshDS()->GetElements();
   }
   else
   {
-    if ( !aMeshImp ) return aGroups._retn();
-    TopoDS_Shape aShape = SMESH_Gen_i::GetSMESHGen()->GeomObjectToShape( thePathShape );
-    aSubMesh = aMeshImp->GetImpl().GetSubMesh( aShape );
-    if ( !aSubMesh /*|| !aSubMesh->GetSubMeshDS()*/ )
+    theError = SMESH::SMESH_MeshEditor::EXTR_PATH_NOT_EDGE;
+    prepareIdSource( thePathObject );
+    pathEdgesIterator = SMESH_Mesh_i::GetElements( thePathObject, SMESH::EDGE );
+    if ( !pathEdgesIterator || !pathEdgesIterator->more() )
       return aGroups._retn();
   }
 
-  SMDS_MeshNode* nodeStart =
-    (SMDS_MeshNode*)aMeshImp->GetImpl().GetMeshDS()->FindNode(theNodeStart);
-  if ( !nodeStart ) {
-    theError = SMESH::SMESH_MeshEditor::EXTR_BAD_STARTING_NODE;
-    return aGroups._retn();
+  if ( !aMeshImp )
+  {
+    SMESH::SMESH_Mesh_var pathMesh = thePathObject->GetMesh();
+    aMeshImp = SMESH::DownCast<SMESH_Mesh_i*>( pathMesh );
   }
 
+
+  theError = SMESH::SMESH_MeshEditor::EXTR_BAD_STARTING_NODE;
+  const SMDS_MeshNode* nodeStart = aMeshImp->GetImpl().GetMeshDS()->FindNode( theNodeStart );
+  if ( !nodeStart )
+    return aGroups._retn();
+
+
   TIDSortedElemSet elemsNodes[2];
   for ( int i = 0, nb = theNodes.length(); i < nb; ++i ) {
-    SMDS_ElemIteratorPtr nIt = myMesh_i->GetElements( theNodes[i], SMESH::NODE );
-    while ( nIt->more() ) elemsNodes[1].insert( nIt->next() );
+    if ( SMDS_ElemIteratorPtr nIt = myMesh_i->GetElements( theNodes[i], SMESH::NODE ))
+      while ( nIt->more() ) elemsNodes[1].insert( nIt->next() );
   }
   for ( int i = 0, nb = theEdges.length(); i < nb; ++i )
     idSourceToSet( theEdges[i], getMeshDS(), elemsNodes[0], SMDSAbs_Edge );
   for ( int i = 0, nb = theFaces.length(); i < nb; ++i )
     idSourceToSet( theFaces[i], getMeshDS(), elemsNodes[0], SMDSAbs_Face );
 
-  list<double> angles;
-  for ( CORBA::ULong i = 0; i < theAngles.length(); i++ ) {
-    angles.push_back( theAngles[i] );
-  }
+  list<double> angles = ExtrusionParams::toList( theAngles );
+  list<double> scales = ExtrusionParams::toList( theScaleFactors );
 
   gp_Pnt refPnt( theRefPoint.x, theRefPoint.y, theRefPoint.z );
+  const gp_Pnt *refPntPtr = theHasRefPoint ? &refPnt : 0;
 
   int nbOldGroups = myMesh->NbGroup();
 
@@ -2928,15 +2921,12 @@ SMESH_MeshEditor_i::ExtrusionAlongPathObjects(const SMESH::ListOfIDSources & the
     theMakeGroups = false;
   }
 
-  ::SMESH_MeshEditor::Extrusion_Error error;
-  if ( !aSubMesh )
-    error = getEditor().ExtrusionAlongTrack( workElements, &(aMeshImp->GetImpl()), nodeStart,
-                                             theHasAngles, angles, theLinearVariation,
-                                             theHasRefPoint, refPnt, theMakeGroups );
-  else
-    error = getEditor().ExtrusionAlongTrack( workElements, aSubMesh, nodeStart,
-                                             theHasAngles, angles, theLinearVariation,
-                                             theHasRefPoint, refPnt, theMakeGroups );
+  ::SMESH_MeshEditor::Extrusion_Error error =
+      getEditor().ExtrusionAlongTrack( workElements,
+                                       &(aMeshImp->GetImpl()), pathEdgesIterator, nodeStart,
+                                       angles, theAnglesVariation,
+                                       scales, theScalesVariation,
+                                       refPntPtr, theMakeGroups );
 
   declareMeshModified( /*isReComputeSafe=*/true );
   theError = convExtrError( error );
@@ -2958,18 +2948,20 @@ SMESH_MeshEditor_i::ExtrusionAlongPathObjects(const SMESH::ListOfIDSources & the
                 << theNodes            << ", "
                 << theEdges            << ", "
                 << theFaces            << ", "
-                << thePathMesh         << ", "
+                << thePathObject       << ", "
                 << thePathShape        << ", "
                 << theNodeStart        << ", "
                 << theHasAngles        << ", "
                 << TVar( theAngles )   << ", "
-                << theLinearVariation  << ", "
+                << theAnglesVariation  << ", "
                 << theHasRefPoint      << ", "
                 << "SMESH.PointStruct( "
                 << TVar( theHasRefPoint ? theRefPoint.x : 0 ) << ", "
                 << TVar( theHasRefPoint ? theRefPoint.y : 0 ) << ", "
                 << TVar( theHasRefPoint ? theRefPoint.z : 0 ) << " ), "
-                << theMakeGroups       << " )";
+                << theMakeGroups           << ", "
+                << TVar( theScaleFactors ) << ", "
+                << theScalesVariation      << " )";
   }
   else
   {
@@ -3007,7 +2999,7 @@ SMESH_MeshEditor_i::LinearAnglesVariation(SMESH::SMESH_Mesh_ptr       thePathMes
     SMESH_subMesh* aSubMesh = aMeshImp->GetImpl().GetSubMesh( aShape );
     if ( !aSubMesh || !aSubMesh->GetSubMeshDS())
       return aResult._retn();
-    int nbSteps = aSubMesh->GetSubMeshDS()->NbElements();
+    smIdType nbSteps = aSubMesh->GetSubMeshDS()->NbElements();
     if ( nbSteps == nbAngles )
     {
       aResult.inout() = theAngles;
@@ -3065,7 +3057,6 @@ SMESH_MeshEditor_i::mirror(TIDSortedElemSet &                  theElements,
                            CORBA::Boolean                      theCopy,
                            bool                                theMakeGroups,
                            ::SMESH_Mesh*                       theTargetMesh)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -3127,11 +3118,10 @@ SMESH_MeshEditor_i::mirror(TIDSortedElemSet &                  theElements,
 //purpose  :
 //=======================================================================
 
-void SMESH_MeshEditor_i::Mirror(const SMESH::long_array &           theIDsOfElements,
+void SMESH_MeshEditor_i::Mirror(const SMESH::smIdType_array &       theIDsOfElements,
                                 const SMESH::AxisStruct &           theAxis,
                                 SMESH::SMESH_MeshEditor::MirrorType theMirrorType,
                                 CORBA::Boolean                      theCopy)
-  throw (SALOME::SALOME_Exception)
 {
   if ( !myIsPreviewMode ) {
     TPythonDump() << this << ".Mirror( "
@@ -3158,7 +3148,6 @@ void SMESH_MeshEditor_i::MirrorObject(SMESH::SMESH_IDSource_ptr           theObj
                                       const SMESH::AxisStruct &           theAxis,
                                       SMESH::SMESH_MeshEditor::MirrorType theMirrorType,
                                       CORBA::Boolean                      theCopy)
-  throw (SALOME::SALOME_Exception)
 {
   if ( !myIsPreviewMode ) {
     TPythonDump() << this << ".MirrorObject( "
@@ -3181,10 +3170,9 @@ void SMESH_MeshEditor_i::MirrorObject(SMESH::SMESH_IDSource_ptr           theObj
 //=======================================================================
 
 SMESH::ListOfGroups*
-SMESH_MeshEditor_i::MirrorMakeGroups(const SMESH::long_array&            theIDsOfElements,
+SMESH_MeshEditor_i::MirrorMakeGroups(const SMESH::smIdType_array&        theIDsOfElements,
                                      const SMESH::AxisStruct&            theMirror,
                                      SMESH::SMESH_MeshEditor::MirrorType theMirrorType)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3214,7 +3202,6 @@ SMESH::ListOfGroups*
 SMESH_MeshEditor_i::MirrorObjectMakeGroups(SMESH::SMESH_IDSource_ptr           theObject,
                                            const SMESH::AxisStruct&            theMirror,
                                            SMESH::SMESH_MeshEditor::MirrorType theMirrorType)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3240,12 +3227,11 @@ SMESH_MeshEditor_i::MirrorObjectMakeGroups(SMESH::SMESH_IDSource_ptr           t
 //=======================================================================
 
 SMESH::SMESH_Mesh_ptr
-SMESH_MeshEditor_i::MirrorMakeMesh(const SMESH::long_array&            theIDsOfElements,
+SMESH_MeshEditor_i::MirrorMakeMesh(const SMESH::smIdType_array&        theIDsOfElements,
                                    const SMESH::AxisStruct&            theMirror,
                                    SMESH::SMESH_MeshEditor::MirrorType theMirrorType,
                                    CORBA::Boolean                      theCopyGroups,
                                    const char*                         theMeshName)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_Mesh_i* mesh_i;
   SMESH::SMESH_Mesh_var mesh;
@@ -3293,7 +3279,6 @@ SMESH_MeshEditor_i::MirrorObjectMakeMesh(SMESH::SMESH_IDSource_ptr           the
                                          SMESH::SMESH_MeshEditor::MirrorType theMirrorType,
                                          CORBA::Boolean                      theCopyGroups,
                                          const char*                         theMeshName)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_Mesh_i* mesh_i;
   SMESH::SMESH_Mesh_var mesh;
@@ -3340,7 +3325,6 @@ SMESH_MeshEditor_i::translate(TIDSortedElemSet        & theElements,
                               CORBA::Boolean            theCopy,
                               bool                      theMakeGroups,
                               ::SMESH_Mesh*             theTargetMesh)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -3391,10 +3375,9 @@ SMESH_MeshEditor_i::translate(TIDSortedElemSet        & theElements,
 //purpose  :
 //=======================================================================
 
-void SMESH_MeshEditor_i::Translate(const SMESH::long_array & theIDsOfElements,
-                                   const SMESH::DirStruct &  theVector,
-                                   CORBA::Boolean            theCopy)
-  throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::Translate(const SMESH::smIdType_array & theIDsOfElements,
+                                   const SMESH::DirStruct &      theVector,
+                                   CORBA::Boolean                theCopy)
 {
   if (!myIsPreviewMode) {
     TPythonDump() << this << ".Translate( "
@@ -3417,7 +3400,6 @@ void SMESH_MeshEditor_i::Translate(const SMESH::long_array & theIDsOfElements,
 void SMESH_MeshEditor_i::TranslateObject(SMESH::SMESH_IDSource_ptr theObject,
                                          const SMESH::DirStruct &  theVector,
                                          CORBA::Boolean            theCopy)
-  throw (SALOME::SALOME_Exception)
 {
   if (!myIsPreviewMode) {
     TPythonDump() << this << ".TranslateObject( "
@@ -3439,9 +3421,8 @@ void SMESH_MeshEditor_i::TranslateObject(SMESH::SMESH_IDSource_ptr theObject,
 //=======================================================================
 
 SMESH::ListOfGroups*
-SMESH_MeshEditor_i::TranslateMakeGroups(const SMESH::long_array& theIDsOfElements,
-                                        const SMESH::DirStruct&  theVector)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::TranslateMakeGroups(const SMESH::smIdType_array& theIDsOfElements,
+                                        const SMESH::DirStruct&      theVector)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3468,7 +3449,6 @@ SMESH_MeshEditor_i::TranslateMakeGroups(const SMESH::long_array& theIDsOfElement
 SMESH::ListOfGroups*
 SMESH_MeshEditor_i::TranslateObjectMakeGroups(SMESH::SMESH_IDSource_ptr theObject,
                                               const SMESH::DirStruct&   theVector)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3492,11 +3472,10 @@ SMESH_MeshEditor_i::TranslateObjectMakeGroups(SMESH::SMESH_IDSource_ptr theObjec
 //=======================================================================
 
 SMESH::SMESH_Mesh_ptr
-SMESH_MeshEditor_i::TranslateMakeMesh(const SMESH::long_array& theIDsOfElements,
-                                      const SMESH::DirStruct&  theVector,
-                                      CORBA::Boolean           theCopyGroups,
-                                      const char*              theMeshName)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::TranslateMakeMesh(const SMESH::smIdType_array& theIDsOfElements,
+                                      const SMESH::DirStruct&      theVector,
+                                      CORBA::Boolean               theCopyGroups,
+                                      const char*                  theMeshName)
 {
   SMESH_Mesh_i* mesh_i;
   SMESH::SMESH_Mesh_var mesh;
@@ -3543,7 +3522,6 @@ SMESH_MeshEditor_i::TranslateObjectMakeMesh(SMESH::SMESH_IDSource_ptr theObject,
                                             const SMESH::DirStruct&   theVector,
                                             CORBA::Boolean            theCopyGroups,
                                             const char*               theMeshName)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH_Mesh_i* mesh_i;
@@ -3593,7 +3571,6 @@ SMESH_MeshEditor_i::rotate(TIDSortedElemSet &        theElements,
                            CORBA::Boolean            theCopy,
                            bool                      theMakeGroups,
                            ::SMESH_Mesh*             theTargetMesh)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -3642,11 +3619,10 @@ SMESH_MeshEditor_i::rotate(TIDSortedElemSet &        theElements,
 //purpose  :
 //=======================================================================
 
-void SMESH_MeshEditor_i::Rotate(const SMESH::long_array & theIDsOfElements,
-                                const SMESH::AxisStruct & theAxis,
-                                CORBA::Double             theAngle,
-                                CORBA::Boolean            theCopy)
-  throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::Rotate(const SMESH::smIdType_array & theIDsOfElements,
+                                const SMESH::AxisStruct &     theAxis,
+                                CORBA::Double                 theAngle,
+                                CORBA::Boolean                theCopy)
 {
   if (!myIsPreviewMode) {
     TPythonDump() << this << ".Rotate( "
@@ -3672,7 +3648,6 @@ void SMESH_MeshEditor_i::RotateObject(SMESH::SMESH_IDSource_ptr theObject,
                                       const SMESH::AxisStruct & theAxis,
                                       CORBA::Double             theAngle,
                                       CORBA::Boolean            theCopy)
-  throw (SALOME::SALOME_Exception)
 {
   if ( !myIsPreviewMode ) {
     TPythonDump() << this << ".RotateObject( "
@@ -3693,10 +3668,9 @@ void SMESH_MeshEditor_i::RotateObject(SMESH::SMESH_IDSource_ptr theObject,
 //=======================================================================
 
 SMESH::ListOfGroups*
-SMESH_MeshEditor_i::RotateMakeGroups(const SMESH::long_array& theIDsOfElements,
-                                     const SMESH::AxisStruct& theAxis,
-                                     CORBA::Double            theAngle)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::RotateMakeGroups(const SMESH::smIdType_array& theIDsOfElements,
+                                     const SMESH::AxisStruct&     theAxis,
+                                     CORBA::Double                theAngle)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3726,7 +3700,6 @@ SMESH::ListOfGroups*
 SMESH_MeshEditor_i::RotateObjectMakeGroups(SMESH::SMESH_IDSource_ptr theObject,
                                            const SMESH::AxisStruct&  theAxis,
                                            CORBA::Double             theAngle)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3751,12 +3724,11 @@ SMESH_MeshEditor_i::RotateObjectMakeGroups(SMESH::SMESH_IDSource_ptr theObject,
 //=======================================================================
 
 SMESH::SMESH_Mesh_ptr
-SMESH_MeshEditor_i::RotateMakeMesh(const SMESH::long_array& theIDsOfElements,
-                                   const SMESH::AxisStruct& theAxis,
-                                   CORBA::Double            theAngleInRadians,
-                                   CORBA::Boolean           theCopyGroups,
-                                   const char*              theMeshName)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::RotateMakeMesh(const SMESH::smIdType_array& theIDsOfElements,
+                                   const SMESH::AxisStruct&     theAxis,
+                                   CORBA::Double                theAngleInRadians,
+                                   CORBA::Boolean               theCopyGroups,
+                                   const char*                  theMeshName)
 {
   SMESH_TRY;
   SMESH::SMESH_Mesh_var mesh;
@@ -3809,7 +3781,6 @@ SMESH_MeshEditor_i::RotateObjectMakeMesh(SMESH::SMESH_IDSource_ptr theObject,
                                          CORBA::Double             theAngleInRadians,
                                          CORBA::Boolean            theCopyGroups,
                                          const char*               theMeshName)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH::SMESH_Mesh_var mesh;
@@ -3862,7 +3833,6 @@ SMESH_MeshEditor_i::scale(SMESH::SMESH_IDSource_ptr  theObject,
                           CORBA::Boolean             theCopy,
                           bool                       theMakeGroups,
                           ::SMESH_Mesh*              theTargetMesh)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -3937,7 +3907,6 @@ void SMESH_MeshEditor_i::Scale(SMESH::SMESH_IDSource_ptr  theObject,
                                const SMESH::PointStruct&  thePoint,
                                const SMESH::double_array& theScaleFact,
                                CORBA::Boolean             theCopy)
-  throw (SALOME::SALOME_Exception)
 {
   if ( !myIsPreviewMode ) {
     TPythonDump() << this << ".Scale( "
@@ -3959,7 +3928,6 @@ SMESH::ListOfGroups*
 SMESH_MeshEditor_i::ScaleMakeGroups(SMESH::SMESH_IDSource_ptr  theObject,
                                     const SMESH::PointStruct&  thePoint,
                                     const SMESH::double_array& theScaleFact)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump aPythonDump; // it is here to prevent dump of GetGroups()
 
@@ -3986,7 +3954,6 @@ SMESH_MeshEditor_i::ScaleMakeMesh(SMESH::SMESH_IDSource_ptr  theObject,
                                   const SMESH::double_array& theScaleFact,
                                   CORBA::Boolean             theCopyGroups,
                                   const char*                theMeshName)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_Mesh_i* mesh_i;
   SMESH::SMESH_Mesh_var mesh;
@@ -4037,7 +4004,6 @@ SMESH::SMESH_Mesh_ptr SMESH_MeshEditor_i::Offset( SMESH::SMESH_IDSource_ptr theO
                                                   CORBA::Boolean            theCopyElements,
                                                   const char*               theMeshName,
                                                   SMESH::ListOfGroups_out   theGroups)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -4083,17 +4049,19 @@ SMESH::SMESH_Mesh_ptr SMESH_MeshEditor_i::Offset( SMESH::SMESH_IDSource_ptr theO
   }
   else
   {
-    theGroups = theCopyGroups ? getGroups( groupIds.get() ) : new SMESH::ListOfGroups;
-
     if ( *theMeshName && mesh_var->NbFaces() == 0 )
     {
       // new mesh empty, remove it
-      SALOMEDS::Study_var          study = SMESH_Gen_i::getStudyServant();
+      SALOMEDS::Study_var          study = SMESH_Gen_i::GetSMESHGen()->getStudyServant();
       SALOMEDS::StudyBuilder_var builder = study->NewBuilder();
-      SALOMEDS::SObject_wrap      meshSO = SMESH_Gen_i::ObjectToSObject( mesh_var );
+      SALOMEDS::SObject_wrap      meshSO = SMESH_Gen_i::GetSMESHGen()->ObjectToSObject( mesh_var );
       builder->RemoveObjectWithChildren( meshSO );
       THROW_SALOME_CORBA_EXCEPTION("Offset failed", SALOME::INTERNAL_ERROR);
     }
+    if ( !groupIds ) // nothing changed in the current mesh
+      THROW_SALOME_CORBA_EXCEPTION("Offset failed", SALOME::INTERNAL_ERROR);
+
+    theGroups = theCopyGroups ? getGroups( groupIds.get() ) : new SMESH::ListOfGroups;
 
     // result of Offset() is a tuple (mesh, groups)
     if ( mesh_var->_is_nil() ) pyDump << myMesh_i->_this() << ", ";
@@ -4149,7 +4117,6 @@ void SMESH_MeshEditor_i::
 FindCoincidentNodes (CORBA::Double                  Tolerance,
                      SMESH::array_of_long_array_out GroupsOfNodes,
                      CORBA::Boolean                 SeparateCornersAndMedium)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -4174,12 +4141,12 @@ FindCoincidentNodesOnPart(SMESH::SMESH_IDSource_ptr      theObject,
                           CORBA::Double                  Tolerance,
                           SMESH::array_of_long_array_out GroupsOfNodes,
                           CORBA::Boolean                 SeparateCornersAndMedium)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
 
   TIDSortedNodeSet nodes;
+  prepareIdSource( theObject );
   idSourceToNodeSet( theObject, getMeshDS(), nodes );
 
   findCoincidentNodes( nodes, Tolerance, GroupsOfNodes, SeparateCornersAndMedium );
@@ -4194,36 +4161,38 @@ FindCoincidentNodesOnPart(SMESH::SMESH_IDSource_ptr      theObject,
 
 //================================================================================
 /*!
- * \brief Finds nodes coincident with Tolerance within Object excluding nodes within
+ * \brief Finds nodes coincident with Tolerance within Objects excluding nodes within
  *        ExceptSubMeshOrGroups
  */
 //================================================================================
 
 void SMESH_MeshEditor_i::
-FindCoincidentNodesOnPartBut(SMESH::SMESH_IDSource_ptr      theObject,
+FindCoincidentNodesOnPartBut(const SMESH::ListOfIDSources&  theObjects,
                              CORBA::Double                  theTolerance,
                              SMESH::array_of_long_array_out theGroupsOfNodes,
                              const SMESH::ListOfIDSources&  theExceptSubMeshOrGroups,
                              CORBA::Boolean                 theSeparateCornersAndMedium)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
 
   TIDSortedNodeSet nodes;
-  idSourceToNodeSet( theObject, getMeshDS(), nodes );
-
+  for ( CORBA::ULong i = 0; i < theObjects.length(); ++i )
+  {
+    prepareIdSource( theObjects[i] );
+    idSourceToNodeSet( theObjects[i], getMeshDS(), nodes );
+  }
   for ( CORBA::ULong i = 0; i < theExceptSubMeshOrGroups.length(); ++i )
   {
-    SMDS_ElemIteratorPtr nodeIt = myMesh_i->GetElements( theExceptSubMeshOrGroups[i],
-                                                         SMESH::NODE );
-    while ( nodeIt->more() )
-      nodes.erase( cast2Node( nodeIt->next() ));
+    if ( SMDS_ElemIteratorPtr nodeIt = myMesh_i->GetElements( theExceptSubMeshOrGroups[i],
+                                                              SMESH::NODE ))
+      while ( nodeIt->more() )
+        nodes.erase( cast2Node( nodeIt->next() ));
   }
   findCoincidentNodes( nodes, theTolerance, theGroupsOfNodes, theSeparateCornersAndMedium );
 
   TPythonDump() << "coincident_nodes_on_part = " << this << ".FindCoincidentNodesOnPartBut( "
-                << theObject<<", "
+                << theObject<<", "
                 << theTolerance << ", "
                 << theExceptSubMeshOrGroups << ", "
                 << theSeparateCornersAndMedium << " )";
@@ -4239,7 +4208,6 @@ FindCoincidentNodesOnPartBut(SMESH::SMESH_IDSource_ptr      theObject,
 void SMESH_MeshEditor_i::MergeNodes (const SMESH::array_of_long_array& GroupsOfNodes,
                                      const SMESH::ListOfIDSources&     NodesToKeep,
                                      CORBA::Boolean                    AvoidMakingHoles)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -4253,9 +4221,9 @@ void SMESH_MeshEditor_i::MergeNodes (const SMESH::array_of_long_array& GroupsOfN
   for ( CORBA::ULong i = 0; i < NodesToKeep.length(); ++i )
   {
     prepareIdSource( NodesToKeep[i] );
-    SMDS_ElemIteratorPtr nodeIt = myMesh_i->GetElements( NodesToKeep[i], SMESH::NODE );
-    while ( nodeIt->more() )
-      setOfNodesToKeep.insert( setOfNodesToKeep.end(), cast2Node( nodeIt->next() ));
+    if ( SMDS_ElemIteratorPtr nodeIt = myMesh_i->GetElements( NodesToKeep[i], SMESH::NODE ))
+      while ( nodeIt->more() )
+        setOfNodesToKeep.insert( setOfNodesToKeep.end(), cast2Node( nodeIt->next() ));
   }
 
   ::SMESH_MeshEditor::TListOfListOfNodes aListOfListOfNodes;
@@ -4296,39 +4264,56 @@ void SMESH_MeshEditor_i::MergeNodes (const SMESH::array_of_long_array& GroupsOfN
 //purpose  :
 //=======================================================================
 
-void SMESH_MeshEditor_i::FindEqualElements(SMESH::SMESH_IDSource_ptr      theObject,
-                                           SMESH::array_of_long_array_out GroupsOfElementsID)
-  throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::FindEqualElements(const SMESH::ListOfIDSources&  theObjects,
+                                           const SMESH::ListOfIDSources&  theExceptObjects,
+                                           SMESH::array_of_long_array_out theGroupsOfElementsID)
 {
   SMESH_TRY;
   initData();
 
-  SMESH::SMESH_GroupBase_var group = SMESH::SMESH_GroupBase::_narrow(theObject);
-  if ( !(!group->_is_nil() && group->GetType() == SMESH::NODE) )
+  theGroupsOfElementsID = new SMESH::array_of_long_array;
+
+  TIDSortedElemSet elems;
+  bool hasOkObject = false;
+  bool emptyIfIsMesh= ( theObjects.length() == 1 && theExceptObjects.length() == 0 );
+
+  for ( CORBA::ULong i = 0; i < theObjects.length(); ++i )
+  {
+    SMESH::SMESH_GroupBase_var group = SMESH::SMESH_GroupBase::_narrow( theObjects[i] );
+    if ( !( !group->_is_nil() && group->GetType() == SMESH::NODE ))
+      if ( idSourceToSet( theObjects[i], getMeshDS(), elems, SMDSAbs_All, emptyIfIsMesh ))
+        hasOkObject = true;
+  }
+
+  if ( hasOkObject )
   {
-    TIDSortedElemSet elems;
-    idSourceToSet( theObject, getMeshDS(), elems, SMDSAbs_All, /*emptyIfIsMesh=*/true);
+    for ( CORBA::ULong i = 0; i < theExceptObjects.length(); ++i )
+    {
+      if ( SMDS_ElemIteratorPtr elemIt = myMesh_i->GetElements( theExceptObjects[i], SMESH::ALL ))
+        while ( elemIt->more() )
+          elems.erase( elemIt->next() );
+    }
 
     ::SMESH_MeshEditor::TListOfListOfElementsID aListOfListOfElementsID;
     getEditor().FindEqualElements( elems, aListOfListOfElementsID );
 
-    GroupsOfElementsID = new SMESH::array_of_long_array;
-    GroupsOfElementsID->length( aListOfListOfElementsID.size() );
+    theGroupsOfElementsID->length( aListOfListOfElementsID.size() );
 
     ::SMESH_MeshEditor::TListOfListOfElementsID::iterator arraysIt =
         aListOfListOfElementsID.begin();
     for (CORBA::Long j = 0; arraysIt != aListOfListOfElementsID.end(); ++arraysIt, ++j)
     {
-      SMESH::long_array& aGroup = (*GroupsOfElementsID)[ j ];
-      list<int>&      listOfIDs = *arraysIt;
+      SMESH::long_array& aGroup = (*theGroupsOfElementsID)[ j ];
+      list<smIdType>&      listOfIDs = *arraysIt;
       aGroup.length( listOfIDs.size() );
-      list<int>::iterator idIt = listOfIDs.begin();
-      for (int k = 0; idIt != listOfIDs.end(); ++idIt, ++k )
+      list<smIdType>::iterator idIt = listOfIDs.begin();
+      for (smIdType k = 0; idIt != listOfIDs.end(); ++idIt, ++k )
         aGroup[ k ] = *idIt;
     }
 
     TPythonDump() << "equal_elements = " << this << ".FindEqualElements( "
-                  <<theObject<<" )";
+                  << theObjects << ", "
+                  << theExceptObjects << " )";
   }
 
   SMESH_CATCH( SMESH::throwCorbaException );
@@ -4339,8 +4324,8 @@ void SMESH_MeshEditor_i::FindEqualElements(SMESH::SMESH_IDSource_ptr      theObj
 //purpose  :
 //=======================================================================
 
-void SMESH_MeshEditor_i::MergeElements(const SMESH::array_of_long_array& GroupsOfElementsID)
-  throw (SALOME::SALOME_Exception)
+void SMESH_MeshEditor_i::MergeElements(const SMESH::array_of_long_array& theGroupsOfElementsID,
+                                       const SMESH::ListOfIDSources&     theElementsToKeep)
 {
   SMESH_TRY;
   initData();
@@ -4348,15 +4333,31 @@ void SMESH_MeshEditor_i::MergeElements(const SMESH::array_of_long_array& GroupsO
   TPythonDump aTPythonDump;
   aTPythonDump << this << ".MergeElements( [";
 
+  NCollection_Map< int > idsToKeep;
+  for ( CORBA::ULong i = 0; i < theElementsToKeep.length(); i++ )
+  {
+    if ( CORBA::is_nil( theElementsToKeep[i] ))
+      continue;
+    SMESH::array_of_ElementType_var elemTypes = theElementsToKeep[i]->GetTypes();
+    if ( elemTypes->length() == 1 && elemTypes[0] == SMESH::NODE )
+      continue;
+    SMESH::smIdType_array_var elementsId = theElementsToKeep[i]->GetIDs();
+    for ( SMESH::smIdType j = 0; j < elementsId->length(); ++j )
+      idsToKeep.Add( elementsId[ j ]);
+  }
+
   ::SMESH_MeshEditor::TListOfListOfElementsID aListOfListOfElementsID;
 
-  for ( CORBA::ULong i = 0; i < GroupsOfElementsID.length(); i++ ) {
-    const SMESH::long_array& anElemsIDGroup = GroupsOfElementsID[ i ];
-    aListOfListOfElementsID.push_back( list< int >() );
-    list< int >& aListOfElemsID = aListOfListOfElementsID.back();
-    for ( CORBA::ULong j = 0; j < anElemsIDGroup.length(); j++ ) {
-      CORBA::Long id = anElemsIDGroup[ j ];
-      aListOfElemsID.push_back( id );
+  for ( CORBA::ULong i = 0; i < theGroupsOfElementsID.length(); i++ )
+  {
+    const SMESH::long_array& anElemsIDGroup = theGroupsOfElementsID[ i ];
+    aListOfListOfElementsID.push_back( list< smIdType >() );
+    list< smIdType >& aListOfElemsID = aListOfListOfElementsID.back();
+    for ( SMESH::smIdType j = 0; j < anElemsIDGroup.length(); j++ )
+    {
+      SMESH::smIdType id = anElemsIDGroup[ j ];
+      if ( idsToKeep.Contains( id )) aListOfElemsID.push_front( id );
+      else                           aListOfElemsID.push_back( id );
     }
     if ( aListOfElemsID.size() < 2 )
       aListOfListOfElementsID.pop_back();
@@ -4368,7 +4369,7 @@ void SMESH_MeshEditor_i::MergeElements(const SMESH::array_of_long_array& GroupsO
 
   declareMeshModified( /*isReComputeSafe=*/true );
 
-  aTPythonDump << "] )";
+  aTPythonDump << "], " << theElementsToKeep << " )";
 
   SMESH_CATCH( SMESH::throwCorbaException );
 }
@@ -4379,7 +4380,6 @@ void SMESH_MeshEditor_i::MergeElements(const SMESH::array_of_long_array& GroupsO
 //=======================================================================
 
 void SMESH_MeshEditor_i::MergeEqualElements()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -4399,11 +4399,10 @@ void SMESH_MeshEditor_i::MergeEqualElements()
  */
 //=============================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::MoveNode(CORBA::Long   NodeID,
-                                            CORBA::Double x,
-                                            CORBA::Double y,
-                                            CORBA::Double z)
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::MoveNode(SMESH::smIdType NodeID,
+                                            CORBA::Double   x,
+                                            CORBA::Double   y,
+                                            CORBA::Double   z)
 {
   SMESH_TRY;
   initData(/*deleteSearchers=*/false);
@@ -4457,10 +4456,9 @@ CORBA::Boolean SMESH_MeshEditor_i::MoveNode(CORBA::Long   NodeID,
  */
 //================================================================================
 
-CORBA::Long SMESH_MeshEditor_i::FindNodeClosestTo(CORBA::Double x,
+SMESH::smIdType SMESH_MeshEditor_i::FindNodeClosestTo(CORBA::Double x,
                                                   CORBA::Double y,
                                                   CORBA::Double z)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   theSearchersDeleter.Set( myMesh ); // remove theNodeSearcher if mesh is other
@@ -4483,11 +4481,10 @@ CORBA::Long SMESH_MeshEditor_i::FindNodeClosestTo(CORBA::Double x,
  */
 //================================================================================
 
-CORBA::Long SMESH_MeshEditor_i::MoveClosestNodeToPoint(CORBA::Double x,
-                                                       CORBA::Double y,
-                                                       CORBA::Double z,
-                                                       CORBA::Long   theNodeID)
-  throw (SALOME::SALOME_Exception)
+SMESH::smIdType SMESH_MeshEditor_i::MoveClosestNodeToPoint(CORBA::Double   x,
+                                                       CORBA::Double   y,
+                                                       CORBA::Double   z,
+                                                       SMESH::smIdType theNodeID)
 {
   SMESH_TRY;
   // We keep theNodeSearcher until any mesh modification:
@@ -4498,7 +4495,7 @@ CORBA::Long SMESH_MeshEditor_i::MoveClosestNodeToPoint(CORBA::Double x,
 
   theSearchersDeleter.Set( myMesh ); // remove theNodeSearcher if mesh is other
 
-  int nodeID = theNodeID;
+  smIdType nodeID = theNodeID;
   const SMDS_MeshNode* node = getMeshDS()->FindNode( nodeID );
   if ( !node ) // preview moving node
   {
@@ -4561,14 +4558,13 @@ CORBA::Long SMESH_MeshEditor_i::MoveClosestNodeToPoint(CORBA::Double x,
  */
 //=======================================================================
 
-SMESH::long_array* SMESH_MeshEditor_i::FindElementsByPoint(CORBA::Double      x,
+SMESH::smIdType_array* SMESH_MeshEditor_i::FindElementsByPoint(CORBA::Double      x,
                                                            CORBA::Double      y,
                                                            CORBA::Double      z,
                                                            SMESH::ElementType type)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
-  SMESH::long_array_var res = new SMESH::long_array;
+  SMESH::smIdType_array_var res = new SMESH::smIdType_array;
   vector< const SMDS_MeshElement* > foundElems;
 
   theSearchersDeleter.Set( myMesh );
@@ -4595,17 +4591,17 @@ SMESH::long_array* SMESH_MeshEditor_i::FindElementsByPoint(CORBA::Double      x,
 //           'ALL' type means elements of any type excluding nodes
 //=======================================================================
 
-SMESH::long_array*
+SMESH::smIdType_array*
 SMESH_MeshEditor_i::FindAmongElementsByPoint(SMESH::SMESH_IDSource_ptr elementIDs,
                                              CORBA::Double             x,
                                              CORBA::Double             y,
                                              CORBA::Double             z,
                                              SMESH::ElementType        type)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
-  SMESH::long_array_var res = new SMESH::long_array;
+  SMESH::smIdType_array_var res = new SMESH::smIdType_array;
 
+  prepareIdSource( elementIDs );
   if ( type != SMESH::NODE )
   {
     SMESH::array_of_ElementType_var types = elementIDs->GetTypes();
@@ -4614,6 +4610,16 @@ SMESH_MeshEditor_i::FindAmongElementsByPoint(SMESH::SMESH_IDSource_ptr elementID
          type != types[0] ) // but search of elements of dim > 0
       return res._retn();
   }
+
+  SMESH::SMESH_Mesh_var mesh = elementIDs->GetMesh();
+  SMESH_Mesh_i*       mesh_i = SMESH::DownCast<SMESH_Mesh_i*>( mesh );
+  if ( mesh_i != myMesh_i )
+  {
+    SMESH::SMESH_MeshEditor_var editor=
+      myIsPreviewMode ? mesh_i->GetMeshEditPreviewer() : mesh_i->GetMeshEditor();
+    return editor->FindAmongElementsByPoint( elementIDs, x,y,z, type );
+  }
+
   if ( SMESH::DownCast<SMESH_Mesh_i*>( elementIDs )) // elementIDs is the whole mesh 
     return FindElementsByPoint( x,y,z, type );
 
@@ -4623,18 +4629,15 @@ SMESH_MeshEditor_i::FindAmongElementsByPoint(SMESH::SMESH_IDSource_ptr elementID
   if ( !theElementSearcher )
   {
     // create a searcher from elementIDs
-    SMESH::SMESH_Mesh_var mesh = elementIDs->GetMesh();
-    SMESHDS_Mesh* meshDS = SMESH::DownCast<SMESH_Mesh_i*>( mesh )->GetImpl().GetMeshDS();
-
-    if ( !idSourceToSet( elementIDs, meshDS, elements,
-                         ( type == SMESH::NODE ? SMDSAbs_All : (SMDSAbs_ElementType) type ),
-                         /*emptyIfIsMesh=*/true))
-      return res._retn();
-
-    typedef SMDS_SetIterator<const SMDS_MeshElement*, TIDSortedElemSet::const_iterator > TIter;
-    SMDS_ElemIteratorPtr elemsIt( new TIter( elements.begin(), elements.end() ));
-
-    theElementSearcher = SMESH_MeshAlgos::GetElementSearcher( *getMeshDS(), elemsIt );
+    SMDS_ElemIteratorPtr elemIt;
+    if ( ! SMESH::DownCast<SMESH_Mesh_i*>( elementIDs ))
+    {
+      //prepareIdSource( elementIDs );
+      elemIt = myMesh_i->GetElements( elementIDs, type );
+      if ( !elemIt )
+        return res._retn();
+    }
+    theElementSearcher = SMESH_MeshAlgos::GetElementSearcher( *getMeshDS(), elemIt );
   }
 
   vector< const SMDS_MeshElement* > foundElems;
@@ -4652,6 +4655,71 @@ SMESH_MeshEditor_i::FindAmongElementsByPoint(SMESH::SMESH_IDSource_ptr elementID
   return 0;
 }
 
+//=======================================================================
+//function : ProjectPoint
+//purpose  : Project a point to a mesh object.
+//           Return ID of an element of given type where the given point is projected
+//           and coordinates of the projection point.
+//           In the case if nothing found, return -1 and []
+//=======================================================================
+
+SMESH::smIdType SMESH_MeshEditor_i::ProjectPoint(CORBA::Double             x,
+                                             CORBA::Double             y,
+                                             CORBA::Double             z,
+                                             SMESH::ElementType        type,
+                                             SMESH::SMESH_IDSource_ptr meshObject,
+                                             SMESH::double_array_out   projecton)
+{
+  if ( CORBA::is_nil( meshObject ))
+    THROW_SALOME_CORBA_EXCEPTION("NULL meshObject", SALOME::BAD_PARAM);
+
+  SMESH_TRY;
+
+  SMESH::SMESH_Mesh_var mesh = meshObject->GetMesh();
+  SMESH_Mesh_i*       mesh_i = SMESH::DownCast<SMESH_Mesh_i*>( mesh );
+  if ( mesh_i != myMesh_i )
+  {
+    SMESH::SMESH_MeshEditor_var editor=
+      myIsPreviewMode ? mesh_i->GetMeshEditPreviewer() : mesh_i->GetMeshEditor();
+    return editor->ProjectPoint( x,y,z, type, meshObject, projecton );
+  }
+
+
+  theSearchersDeleter.Set( myMesh, getPartIOR( meshObject, type ));
+  if ( !theElementSearcher )
+  {
+    // create a searcher from meshObject
+
+    SMDS_ElemIteratorPtr elemIt;
+    if ( ! SMESH::DownCast<SMESH_Mesh_i*>( meshObject ))
+    {
+      prepareIdSource( meshObject );
+      elemIt = myMesh_i->GetElements( meshObject, type );
+      if ( !elemIt )
+        return -1;
+    }
+    theElementSearcher = SMESH_MeshAlgos::GetElementSearcher( *getMeshDS(), elemIt );
+  }
+
+  const SMDS_MeshElement* elem = 0;
+  gp_XYZ pProj = theElementSearcher->Project( gp_Pnt( x,y,z ),
+                                              SMDSAbs_ElementType( type ),
+                                              &elem );
+
+  projecton = new SMESH::double_array();
+  if ( elem && !elem->IsNull() )
+  {
+    projecton->length( 3 );
+    projecton[0] = pProj.X();
+    projecton[1] = pProj.Y();
+    projecton[2] = pProj.Z();
+    return elem->GetID();
+  }
+
+  SMESH_CATCH( SMESH::throwCorbaException );
+  return -1;
+}
+
 //=======================================================================
 //function : GetPointState
 //purpose  : Return point state in a closed 2D mesh in terms of TopAbs_State enumeration.
@@ -4661,7 +4729,6 @@ SMESH_MeshEditor_i::FindAmongElementsByPoint(SMESH::SMESH_IDSource_ptr elementID
 CORBA::Short SMESH_MeshEditor_i::GetPointState(CORBA::Double x,
                                                CORBA::Double y,
                                                CORBA::Double z)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   theSearchersDeleter.Set( myMesh );
@@ -4680,7 +4747,6 @@ CORBA::Short SMESH_MeshEditor_i::GetPointState(CORBA::Double x,
 //=======================================================================
 
 CORBA::Boolean SMESH_MeshEditor_i::IsManifold()
-  throw (SALOME::SALOME_Exception)
 {
   bool isManifold = true;
 
@@ -4701,7 +4767,6 @@ CORBA::Boolean SMESH_MeshEditor_i::IsManifold()
 //=======================================================================
 
 CORBA::Boolean SMESH_MeshEditor_i::IsCoherentOrientation2D()
-  throw (SALOME::SALOME_Exception)
 {
   bool isGoodOri = true;
 
@@ -4717,13 +4782,115 @@ CORBA::Boolean SMESH_MeshEditor_i::IsCoherentOrientation2D()
   return isGoodOri;
 }
 
+//=======================================================================
+//function : Get1DBranches
+//purpose  : Partition given 1D elements into groups of contiguous edges.
+//           A node where number of meeting edges != 2 is a group end.
+//           An optional startNode is used to orient groups it belongs to.
+//return   : a list of edge groups and a list of corresponding node groups.
+//           If a group is closed, the first and last nodes of the group are same.
+//=======================================================================
+
+SMESH::array_of_long_array*
+SMESH_MeshEditor_i::Get1DBranches( SMESH::SMESH_IDSource_ptr      theEdges,
+                                   SMESH::smIdType                theStartNode,
+                                   SMESH::array_of_long_array_out theNodeGroups )
+{
+  if ( CORBA::is_nil( theEdges ))
+    THROW_SALOME_CORBA_EXCEPTION("Get1DBranches(): NULL group given", SALOME::BAD_PARAM);
+
+  SMESH::array_of_long_array_var edgeGroupArray = new SMESH::array_of_long_array;
+  theNodeGroups = new SMESH::array_of_long_array;
+
+  SMESH_TRY;
+
+  prepareIdSource( theEdges );
+
+  SMESH_MeshAlgos::TElemGroupVector edgeBranches;
+  SMESH_MeshAlgos::TNodeGroupVector nodeBranches;
+  SMESH_MeshAlgos::Get1DBranches( SMESH_Mesh_i::GetElements( theEdges, SMESH::EDGE ),
+                                  edgeBranches,
+                                  nodeBranches,
+                                  getMeshDS()->FindNode( theStartNode ));
+
+  edgeGroupArray->length( edgeBranches.size() );
+  for ( size_t iG = 0; iG < edgeBranches.size(); ++iG )
+  {
+    edgeGroupArray[ iG ].length( edgeBranches[ iG ].size() );
+    for ( size_t i = 0; i < edgeBranches[ iG ].size(); ++i )
+      edgeGroupArray[ iG ][ i ] = edgeBranches[ iG ][ i ]->GetID();
+  }
+
+  theNodeGroups->length( nodeBranches.size() );
+  for ( size_t iG = 0; iG < nodeBranches.size(); ++iG )
+  {
+    theNodeGroups[ iG ].length( nodeBranches[ iG ].size() );
+    for ( size_t i = 0; i < nodeBranches[ iG ].size(); ++i )
+      theNodeGroups[ iG ][ i ] = nodeBranches[ iG ][ i ]->GetID();
+  }
+
+  SMESH_CATCH( SMESH::throwCorbaException );
+
+  return edgeGroupArray._retn();
+}
+
+//=======================================================================
+//function : FindSharpEdges
+//purpose  : Return sharp edges of faces and non-manifold ones. Optionally add existing edges.
+//=======================================================================
+
+SMESH::ListOfEdges* SMESH_MeshEditor_i::FindSharpEdges(CORBA::Double  theAngle,
+                                                       CORBA::Boolean theAddExisting)
+{
+  SMESH::ListOfEdges_var resultEdges = new SMESH::ListOfEdges;
+  SMESH_TRY;
+
+  initData();
+
+  std::vector< SMESH_MeshAlgos::Edge > edges =
+    SMESH_MeshAlgos::FindSharpEdges( getMeshDS(), theAngle, theAddExisting );
+
+  if ( myIsPreviewMode ) // fill a preview mesh with edges
+  {
+    TPreviewMesh* mesh = getPreviewMesh( SMDSAbs_Edge );
+    SMDS_Mesh*  meshDS = mesh->GetMeshDS();
+    for ( size_t i = 0; i < edges.size(); ++i )
+    {
+      SMESH_NodeXYZ xyz1( edges[i]._node1), xyz2( edges[i]._node2);
+      SMDS_MeshNode* n1 = meshDS->AddNode( xyz1.X(), xyz1.Y(), xyz1.Z() );
+      SMDS_MeshNode* n2 = meshDS->AddNode( xyz2.X(), xyz2.Y(), xyz2.Z() );
+      if ( edges[i]._medium )
+      {
+        xyz1.Set( edges[i]._medium );
+        SMDS_MeshNode* nm = meshDS->AddNode( xyz1.X(), xyz1.Y(), xyz1.Z() );
+        mesh->GetMeshDS()->AddEdge( n1, n2, nm );
+      }
+      else
+      {
+        mesh->GetMeshDS()->AddEdge( n1, n2 );
+      }
+    }
+  }
+  else
+  {
+    resultEdges->length( edges.size() );
+    for ( size_t i = 0; i < edges.size(); ++i )
+    {
+      resultEdges[ i ].node1  = edges[i]._node1->GetID();
+      resultEdges[ i ].node2  = edges[i]._node2->GetID();
+      resultEdges[ i ].medium = edges[i]._medium ? edges[i]._medium->GetID() : 0;
+    }
+  }
+  SMESH_CATCH( SMESH::throwCorbaException );
+  return resultEdges._retn();
+}
+
 //=======================================================================
 //function : FindFreeBorders
 //purpose  : Returns all or only closed FreeBorder's.
 //=======================================================================
 
 SMESH::ListOfFreeBorders* SMESH_MeshEditor_i::FindFreeBorders(CORBA::Boolean closedOnly)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH::ListOfFreeBorders_var resBorders = new SMESH::ListOfFreeBorders;
   SMESH_TRY;
@@ -4751,8 +4918,9 @@ SMESH::ListOfFreeBorders* SMESH_MeshEditor_i::FindFreeBorders(CORBA::Boolean clo
 //purpose  : Fill with 2D elements a hole defined by a FreeBorder.
 //=======================================================================
 
-void SMESH_MeshEditor_i::FillHole(const SMESH::FreeBorder& theHole)
-  throw (SALOME::SALOME_Exception)
+SMESH::SMESH_Group_ptr 
+SMESH_MeshEditor_i::FillHole(const SMESH::FreeBorder& theHole,
+                             const char*              theGroupName)
 {
   initData();
 
@@ -4774,6 +4942,7 @@ void SMESH_MeshEditor_i::FillHole(const SMESH::FreeBorder& theHole)
 
   SMESH_TRY;
 
+  // prepare a preview mesh
   MeshEditor_I::TPreviewMesh* previewMesh = 0;
   SMDS_Mesh* meshDS = getMeshDS();
   if ( myIsPreviewMode )
@@ -4796,26 +4965,66 @@ void SMESH_MeshEditor_i::FillHole(const SMESH::FreeBorder& theHole)
     meshDS = previewMesh->GetMeshDS();
   }
 
+  // fill the hole
   std::vector<const SMDS_MeshElement*> newFaces;
   SMESH_MeshAlgos::FillHole( bordNodes, *meshDS, newFaces );
 
   if ( myIsPreviewMode )
   {
+    // show new faces
     previewMesh->Clear();
     for ( size_t i = 0; i < newFaces.size(); ++i )
       previewMesh->Copy( newFaces[i] );
   }
   else
   {
+    // return new faces via a group
+    SMESH::SMESH_Group_var group;
+    if ( theGroupName && theGroupName[0] && !newFaces.empty() )
+    {
+      SMESH::ListOfGroups_var groups = myMesh_i->GetGroups();
+      for ( CORBA::ULong i = 0; i < groups->length(); ++i )
+      {
+        SMESH::SMESH_GroupBase_var g = groups[ i ];
+        if ( g->GetType() != SMESH::FACE ) continue;
+        SMESH::SMESH_Group_var standalone = SMESH::SMESH_Group::_narrow( g );
+        if ( standalone->_is_nil() ) continue;
+        CORBA::String_var name = g->GetName();
+        if ( strcmp( theGroupName, name.in() ) == 0 )
+        {
+          group = standalone;
+          break;
+        }
+      }
+      if ( group->_is_nil() )
+        group = myMesh_i->CreateGroup( SMESH::FACE, theGroupName );
+
+      if ( !group->_is_nil() )
+      {
+        SMESH_GroupBase_i * grpI = SMESH::DownCast< SMESH_GroupBase_i* >( group );
+        SMESHDS_Group*     grpDS = static_cast< SMESHDS_Group* >( grpI->GetGroupDS() );
+        for ( size_t i = 0; i < newFaces.size(); ++i )
+          grpDS->Add( newFaces[ i ]);
+      }
+    }
+
+    // fill LastCreated
     getEditor().ClearLastCreated();
     SMESH_SequenceOfElemPtr& aSeq =
       const_cast<SMESH_SequenceOfElemPtr&>( getEditor().GetLastCreatedElems() );
     aSeq.swap( newFaces );
 
-    TPythonDump() << this << ".FillHole( SMESH.FreeBorder(" << theHole.nodeIDs << " ))";
+    TPythonDump pyDump;
+    if ( group->_is_nil() ) pyDump << "_group = ";
+    else                    pyDump << group << " = ";
+    pyDump << this << ".FillHole( SMESH.FreeBorder(" << theHole.nodeIDs << " ))";
+
+    return group._retn();
   }
 
   SMESH_CATCH( SMESH::throwCorbaException );
+
+  return SMESH::SMESH_Group::_nil();
 }
 
 //=======================================================================
@@ -4907,7 +5116,6 @@ CORBA::Short SMESH_MeshEditor_i::
 SewCoincidentFreeBorders(const SMESH::CoincidentFreeBorders& freeBorders,
                          CORBA::Boolean                      createPolygons,
                          CORBA::Boolean                      createPolyhedra)
-  throw (SALOME::SALOME_Exception)
 {
   CORBA::Short nbSewed = 0;
 
@@ -5068,15 +5276,14 @@ SewCoincidentFreeBorders(const SMESH::CoincidentFreeBorders& freeBorders,
 //=======================================================================
 
 SMESH::SMESH_MeshEditor::Sew_Error
-SMESH_MeshEditor_i::SewFreeBorders(CORBA::Long FirstNodeID1,
-                                   CORBA::Long SecondNodeID1,
-                                   CORBA::Long LastNodeID1,
-                                   CORBA::Long FirstNodeID2,
-                                   CORBA::Long SecondNodeID2,
-                                   CORBA::Long LastNodeID2,
-                                   CORBA::Boolean CreatePolygons,
-                                   CORBA::Boolean CreatePolyedrs)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::SewFreeBorders(SMESH::smIdType FirstNodeID1,
+                                   SMESH::smIdType SecondNodeID1,
+                                   SMESH::smIdType LastNodeID1,
+                                   SMESH::smIdType FirstNodeID2,
+                                   SMESH::smIdType SecondNodeID2,
+                                   SMESH::smIdType LastNodeID2,
+                                   CORBA::Boolean  CreatePolygons,
+                                   CORBA::Boolean  CreatePolyedrs)
 {
   SMESH_TRY;
   initData();
@@ -5135,12 +5342,11 @@ SMESH_MeshEditor_i::SewFreeBorders(CORBA::Long FirstNodeID1,
 //=======================================================================
 
 SMESH::SMESH_MeshEditor::Sew_Error
-SMESH_MeshEditor_i::SewConformFreeBorders(CORBA::Long FirstNodeID1,
-                                          CORBA::Long SecondNodeID1,
-                                          CORBA::Long LastNodeID1,
-                                          CORBA::Long FirstNodeID2,
-                                          CORBA::Long SecondNodeID2)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::SewConformFreeBorders(SMESH::smIdType FirstNodeID1,
+                                          SMESH::smIdType SecondNodeID1,
+                                          SMESH::smIdType LastNodeID1,
+                                          SMESH::smIdType FirstNodeID2,
+                                          SMESH::smIdType SecondNodeID2)
 {
   SMESH_TRY;
   initData();
@@ -5193,14 +5399,13 @@ SMESH_MeshEditor_i::SewConformFreeBorders(CORBA::Long FirstNodeID1,
 //=======================================================================
 
 SMESH::SMESH_MeshEditor::Sew_Error
-SMESH_MeshEditor_i::SewBorderToSide(CORBA::Long FirstNodeIDOnFreeBorder,
-                                    CORBA::Long SecondNodeIDOnFreeBorder,
-                                    CORBA::Long LastNodeIDOnFreeBorder,
-                                    CORBA::Long FirstNodeIDOnSide,
-                                    CORBA::Long LastNodeIDOnSide,
-                                    CORBA::Boolean CreatePolygons,
-                                    CORBA::Boolean CreatePolyedrs)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::SewBorderToSide(SMESH::smIdType FirstNodeIDOnFreeBorder,
+                                    SMESH::smIdType SecondNodeIDOnFreeBorder,
+                                    SMESH::smIdType LastNodeIDOnFreeBorder,
+                                    SMESH::smIdType FirstNodeIDOnSide,
+                                    SMESH::smIdType LastNodeIDOnSide,
+                                    CORBA::Boolean  CreatePolygons,
+                                    CORBA::Boolean  CreatePolyedrs)
 {
   SMESH_TRY;
   initData();
@@ -5256,13 +5461,12 @@ SMESH_MeshEditor_i::SewBorderToSide(CORBA::Long FirstNodeIDOnFreeBorder,
 //=======================================================================
 
 SMESH::SMESH_MeshEditor::Sew_Error
-SMESH_MeshEditor_i::SewSideElements(const SMESH::long_array& IDsOfSide1Elements,
-                                    const SMESH::long_array& IDsOfSide2Elements,
-                                    CORBA::Long NodeID1OfSide1ToMerge,
-                                    CORBA::Long NodeID1OfSide2ToMerge,
-                                    CORBA::Long NodeID2OfSide1ToMerge,
-                                    CORBA::Long NodeID2OfSide2ToMerge)
-  throw (SALOME::SALOME_Exception)
+SMESH_MeshEditor_i::SewSideElements(const SMESH::smIdType_array& IDsOfSide1Elements,
+                                    const SMESH::smIdType_array& IDsOfSide2Elements,
+                                    SMESH::smIdType NodeID1OfSide1ToMerge,
+                                    SMESH::smIdType NodeID1OfSide2ToMerge,
+                                    SMESH::smIdType NodeID2OfSide1ToMerge,
+                                    SMESH::smIdType NodeID2OfSide2ToMerge)
 {
   SMESH_TRY;
   initData();
@@ -5316,31 +5520,27 @@ SMESH_MeshEditor_i::SewSideElements(const SMESH::long_array& IDsOfSide1Elements,
  */
 //================================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::ChangeElemNodes(CORBA::Long ide,
-                                                   const SMESH::long_array& newIDs)
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::ChangeElemNodes(SMESH::smIdType ide,
+                                                   const SMESH::smIdType_array& newIDs)
 {
   SMESH_TRY;
   initData();
 
   const SMDS_MeshElement* elem = getMeshDS()->FindElement(ide);
-  if(!elem) return false;
+  if ( !elem ) return false;
 
   int nbn = newIDs.length();
-  int i=0;
   vector<const SMDS_MeshNode*> aNodes(nbn);
-  int nbn1=-1;
-  for(; i<nbn; i++) {
-    const SMDS_MeshNode* aNode = getMeshDS()->FindNode(newIDs[i]);
-    if(aNode) {
-      nbn1++;
-      aNodes[nbn1] = aNode;
-    }
+  for ( int i = 0; i < nbn; i++ ) {
+    const SMDS_MeshNode* aNode = getMeshDS()->FindNode( newIDs[ i ]);
+    if ( !aNode )
+      return false;
+    aNodes[ i ] = aNode;
   }
   TPythonDump() << "isDone = " << this << ".ChangeElemNodes( "
                 << ide << ", " << newIDs << " )";
 
-  bool res = getMeshDS()->ChangeElementNodes( elem, & aNodes[0], nbn1+1 );
+  bool res = getMeshDS()->ChangeElementNodes( elem, & aNodes[0], aNodes.size() );
 
   declareMeshModified( /*isReComputeSafe=*/ !res );
 
@@ -5359,7 +5559,6 @@ CORBA::Boolean SMESH_MeshEditor_i::ChangeElemNodes(CORBA::Long ide,
 void SMESH_MeshEditor_i::convertToQuadratic(CORBA::Boolean            theForce3d,
                                             CORBA::Boolean            theToBiQuad,
                                             SMESH::SMESH_IDSource_ptr theObject)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -5368,8 +5567,8 @@ void SMESH_MeshEditor_i::convertToQuadratic(CORBA::Boolean            theForce3d
   bool elemsOK;
   if ( !( elemsOK = CORBA::is_nil( theObject )))
   {
-    elemsOK =  idSourceToSet( theObject, getMeshDS(), elems,
-                              SMDSAbs_All, /*emptyIfIsMesh=*/true );
+    elemsOK = idSourceToSet( theObject, getMeshDS(), elems,
+                             SMDSAbs_All, /*emptyIfIsMesh=*/true );
   }
   if ( elemsOK )
   {
@@ -5391,7 +5590,6 @@ void SMESH_MeshEditor_i::convertToQuadratic(CORBA::Boolean            theForce3d
 //=======================================================================
 
 CORBA::Boolean SMESH_MeshEditor_i::ConvertFromQuadratic()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -5411,7 +5609,6 @@ CORBA::Boolean SMESH_MeshEditor_i::ConvertFromQuadratic()
 //=======================================================================
 
 void SMESH_MeshEditor_i::ConvertToQuadratic(CORBA::Boolean theForce3d)
-  throw (SALOME::SALOME_Exception)
 {
   convertToQuadratic( theForce3d, false );
   TPythonDump() << this << ".ConvertToQuadratic("<<theForce3d<<")";
@@ -5425,7 +5622,6 @@ void SMESH_MeshEditor_i::ConvertToQuadratic(CORBA::Boolean theForce3d)
 
 void SMESH_MeshEditor_i::ConvertToQuadraticObject(CORBA::Boolean            theForce3d,
                                                   SMESH::SMESH_IDSource_ptr theObject)
-  throw (SALOME::SALOME_Exception)
 {
   convertToQuadratic( theForce3d, false, theObject );
   TPythonDump() << this << ".ConvertToQuadraticObject("<<theForce3d<<", "<<theObject<<")";
@@ -5439,7 +5635,6 @@ void SMESH_MeshEditor_i::ConvertToQuadraticObject(CORBA::Boolean            theF
 
 void SMESH_MeshEditor_i::ConvertToBiQuadratic(CORBA::Boolean            theForce3d,
                                               SMESH::SMESH_IDSource_ptr theObject)
-  throw (SALOME::SALOME_Exception)
 {
   convertToQuadratic( theForce3d, true, theObject );
   TPythonDump() << this << ".ConvertToBiQuadratic("<<theForce3d<<", "<<theObject<<")";
@@ -5452,7 +5647,6 @@ void SMESH_MeshEditor_i::ConvertToBiQuadratic(CORBA::Boolean            theForce
 //================================================================================
 
 void SMESH_MeshEditor_i::ConvertFromQuadraticObject(SMESH::SMESH_IDSource_ptr theObject)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -5519,7 +5713,7 @@ void SMESH_MeshEditor_i::dumpGroupsList(TPythonDump &               theDumpPytho
 */
 //================================================================================
 
-std::string SMESH_MeshEditor_i::generateGroupName(const std::string& thePrefix)
+std::string SMESH_MeshEditor_i::GenerateGroupName(const std::string& thePrefix)
 {
   SMESH::ListOfGroups_var groups = myMesh_i->GetGroups();
   set<std::string> groupNames;
@@ -5581,12 +5775,23 @@ bool SMESH_MeshEditor_i::idSourceToSet(SMESH::SMESH_IDSource_ptr  theIDSource,
   }
   if ( emptyIfIsMesh && SMESH::DownCast<SMESH_Mesh_i*>( theIDSource ))
   {
-    if ( error && getMeshDS()->GetMeshInfo().NbElements( theType ) == 0 )
+    if ( error && theMeshDS->GetMeshInfo().NbElements( theType ) == 0 )
       *error = IDSource_EMPTY;
     return true;
   }
+  if ( getMeshDS() == theMeshDS ) // check if theIDSource belongs to myMesh
+  {
+    SMESH::SMESH_Mesh_var mesh = theIDSource->GetMesh();
+    SMESH_Mesh_i*       mesh_i = SMESH::DownCast<SMESH_Mesh_i*>( mesh );
+    if ( mesh_i && mesh_i != myMesh_i )
+    {
+      if ( error )
+        *error = IDSource_INVALID;
+      return false;
+    }
+  }
   prepareIdSource( theIDSource );
-  SMESH::long_array_var anIDs = theIDSource->GetIDs();
+  SMESH::smIdType_array_var anIDs = theIDSource->GetIDs();
   if ( anIDs->length() == 0 )
   {
     if ( error ) *error = IDSource_EMPTY;
@@ -5635,7 +5840,6 @@ bool SMESH_MeshEditor_i::idSourceToSet(SMESH::SMESH_IDSource_ptr  theIDSource,
 SMESH::SMESH_Group_ptr
 SMESH_MeshEditor_i::DoubleElements(SMESH::SMESH_IDSource_ptr theElements,
                                    const char*               theGroupName)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH::SMESH_Group_var newGroup;
 
@@ -5701,9 +5905,8 @@ SMESH_MeshEditor_i::DoubleElements(SMESH::SMESH_IDSource_ptr theElements,
 */
 //================================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::DoubleNodes( const SMESH::long_array& theNodes,
-                                                const SMESH::long_array& theModifiedElems )
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::DoubleNodes( const SMESH::smIdType_array& theNodes,
+                                                const SMESH::smIdType_array& theModifiedElems )
 {
   SMESH_TRY;
   initData();
@@ -5741,12 +5944,11 @@ CORBA::Boolean SMESH_MeshEditor_i::DoubleNodes( const SMESH::long_array& theNode
 */
 //================================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::DoubleNode( CORBA::Long              theNodeId,
-                                               const SMESH::long_array& theModifiedElems )
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::DoubleNode( SMESH::smIdType              theNodeId,
+                                               const SMESH::smIdType_array& theModifiedElems )
 {
   SMESH_TRY;
-  SMESH::long_array_var aNodes = new SMESH::long_array;
+  SMESH::smIdType_array_var aNodes = new SMESH::smIdType_array;
   aNodes->length( 1 );
   aNodes[ 0 ] = theNodeId;
 
@@ -5775,18 +5977,17 @@ CORBA::Boolean SMESH_MeshEditor_i::DoubleNode( CORBA::Long              theNodeI
 
 CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeGroup(SMESH::SMESH_GroupBase_ptr theNodes,
                                                    SMESH::SMESH_GroupBase_ptr theModifiedElems )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   if ( CORBA::is_nil( theNodes ) && theNodes->GetType() != SMESH::NODE )
     return false;
 
-  SMESH::long_array_var aNodes = theNodes->GetListOfID();
-  SMESH::long_array_var aModifiedElems;
+  SMESH::smIdType_array_var aNodes = theNodes->GetListOfID();
+  SMESH::smIdType_array_var aModifiedElems;
   if ( !CORBA::is_nil( theModifiedElems ) )
     aModifiedElems = theModifiedElems->GetListOfID();
   else
-    aModifiedElems = new SMESH::long_array;
+    aModifiedElems = new SMESH::smIdType_array;
 
   TPythonDump pyDump; // suppress dump by the next line
 
@@ -5814,7 +6015,6 @@ CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeGroup(SMESH::SMESH_GroupBase_ptr th
 SMESH::SMESH_Group_ptr
 SMESH_MeshEditor_i::DoubleNodeGroupNew( SMESH::SMESH_GroupBase_ptr theNodes,
                                         SMESH::SMESH_GroupBase_ptr theModifiedElems )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH::SMESH_Group_var aNewGroup;
@@ -5823,12 +6023,12 @@ SMESH_MeshEditor_i::DoubleNodeGroupNew( SMESH::SMESH_GroupBase_ptr theNodes,
     return aNewGroup._retn();
 
   // Duplicate nodes
-  SMESH::long_array_var aNodes = theNodes->GetListOfID();
-  SMESH::long_array_var aModifiedElems;
+  SMESH::smIdType_array_var aNodes = theNodes->GetListOfID();
+  SMESH::smIdType_array_var aModifiedElems;
   if ( !CORBA::is_nil( theModifiedElems ) )
     aModifiedElems = theModifiedElems->GetListOfID();
   else {
-    aModifiedElems = new SMESH::long_array;
+    aModifiedElems = new SMESH::smIdType_array;
     aModifiedElems->length( 0 );
   }
 
@@ -5838,10 +6038,10 @@ SMESH_MeshEditor_i::DoubleNodeGroupNew( SMESH::SMESH_GroupBase_ptr theNodes,
   if ( aResult )
   {
     // Create group with newly created nodes
-    SMESH::long_array_var anIds = GetLastCreatedNodes();
+    SMESH::smIdType_array_var anIds = GetLastCreatedNodes();
     if (anIds->length() > 0) {
       std::string anUnindexedName (theNodes->GetName());
-      std::string aNewName = generateGroupName(anUnindexedName + "_double");
+      std::string aNewName = GenerateGroupName(anUnindexedName + "_double");
       aNewGroup = myMesh_i->CreateGroup(SMESH::NODE, aNewName.c_str());
       aNewGroup->Add(anIds);
       pyDump << aNewGroup << " = ";
@@ -5870,19 +6070,18 @@ SMESH_MeshEditor_i::DoubleNodeGroupNew( SMESH::SMESH_GroupBase_ptr theNodes,
 
 CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeGroups(const SMESH::ListOfGroups& theNodes,
                                                     const SMESH::ListOfGroups& theModifiedElems )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
 
   std::list< int > aNodes;
-  int i, n, j, m;
+  smIdType i, n, j, m;
   for ( i = 0, n = theNodes.length(); i < n; i++ )
   {
     SMESH::SMESH_GroupBase_var aGrp = theNodes[ i ];
     if ( !CORBA::is_nil( aGrp ) && aGrp->GetType() == SMESH::NODE )
     {
-      SMESH::long_array_var aCurr = aGrp->GetListOfID();
+      SMESH::smIdType_array_var aCurr = aGrp->GetListOfID();
       for ( j = 0, m = aCurr->length(); j < m; j++ )
         aNodes.push_back( aCurr[ j ] );
     }
@@ -5894,7 +6093,7 @@ CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeGroups(const SMESH::ListOfGroups& t
     SMESH::SMESH_GroupBase_var aGrp = theModifiedElems[ i ];
     if ( !CORBA::is_nil( aGrp ) && aGrp->GetType() != SMESH::NODE )
     {
-      SMESH::long_array_var aCurr = aGrp->GetListOfID();
+      SMESH::smIdType_array_var aCurr = aGrp->GetListOfID();
       for ( j = 0, m = aCurr->length(); j < m; j++ )
         anElems.push_back( aCurr[ j ] );
     }
@@ -5926,7 +6125,6 @@ CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeGroups(const SMESH::ListOfGroups& t
 SMESH::SMESH_Group_ptr
 SMESH_MeshEditor_i::DoubleNodeGroupsNew( const SMESH::ListOfGroups& theNodes,
                                          const SMESH::ListOfGroups& theModifiedElems )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH::SMESH_Group_var aNewGroup;
 
@@ -5937,10 +6135,10 @@ SMESH_MeshEditor_i::DoubleNodeGroupsNew( const SMESH::ListOfGroups& theNodes,
   if ( aResult )
   {
     // Create group with newly created nodes
-    SMESH::long_array_var anIds = GetLastCreatedNodes();
+    SMESH::smIdType_array_var anIds = GetLastCreatedNodes();
     if (anIds->length() > 0) {
       std::string anUnindexedName (theNodes[0]->GetName());
-      std::string aNewName = generateGroupName(anUnindexedName + "_double");
+      std::string aNewName = GenerateGroupName(anUnindexedName + "_double");
       aNewGroup = myMesh_i->CreateGroup(SMESH::NODE, aNewName.c_str());
       aNewGroup->Add(anIds);
       pyDump << aNewGroup << " = ";
@@ -5967,10 +6165,9 @@ SMESH_MeshEditor_i::DoubleNodeGroupsNew( const SMESH::ListOfGroups& theNodes,
 */
 //================================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeElem( const SMESH::long_array& theElems,
-                                                   const SMESH::long_array& theNodesNot,
-                                                   const SMESH::long_array& theAffectedElems )
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeElem( const SMESH::smIdType_array& theElems,
+                                                   const SMESH::smIdType_array& theNodesNot,
+                                                   const SMESH::smIdType_array& theAffectedElems )
 {
   SMESH_TRY;
   initData();
@@ -6008,10 +6205,9 @@ CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeElem( const SMESH::long_array& theE
 */
 //================================================================================
 
-CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeElemInRegion ( const SMESH::long_array& theElems,
-                                                            const SMESH::long_array& theNodesNot,
-                                                            GEOM::GEOM_Object_ptr    theShape )
-  throw (SALOME::SALOME_Exception)
+CORBA::Boolean SMESH_MeshEditor_i::DoubleNodeElemInRegion ( const SMESH::smIdType_array& theElems,
+                                                            const SMESH::smIdType_array& theNodesNot,
+                                                            GEOM::GEOM_Object_ptr        theShape )
 {
   SMESH_TRY;
   initData();
@@ -6052,7 +6248,6 @@ CORBA::Boolean
 SMESH_MeshEditor_i::DoubleNodeElemGroup(SMESH::SMESH_GroupBase_ptr theElems,
                                         SMESH::SMESH_GroupBase_ptr theNodesNot,
                                         SMESH::SMESH_GroupBase_ptr theAffectedElems)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   if ( CORBA::is_nil( theElems ) && theElems->GetType() == SMESH::NODE )
@@ -6097,7 +6292,6 @@ SMESH::SMESH_Group_ptr
 SMESH_MeshEditor_i::DoubleNodeElemGroupNew(SMESH::SMESH_GroupBase_ptr theElems,
                                            SMESH::SMESH_GroupBase_ptr theNodesNot,
                                            SMESH::SMESH_GroupBase_ptr theAffectedElems)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump pyDump;
   SMESH::ListOfGroups_var twoGroups = DoubleNodeElemGroup2New( theElems,
@@ -6134,7 +6328,6 @@ SMESH_MeshEditor_i::DoubleNodeElemGroup2New(SMESH::SMESH_GroupBase_ptr theElems,
                                             SMESH::SMESH_GroupBase_ptr theAffectedElems,
                                             CORBA::Boolean             theElemGroupNeeded,
                                             CORBA::Boolean             theNodeGroupNeeded)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH::SMESH_Group_var aNewElemGroup, aNewNodeGroup;
@@ -6164,17 +6357,17 @@ SMESH_MeshEditor_i::DoubleNodeElemGroup2New(SMESH::SMESH_GroupBase_ptr theElems,
   {
     // Create group with newly created elements
     CORBA::String_var elemGroupName = theElems->GetName();
-    std::string aNewName = generateGroupName( std::string(elemGroupName.in()) + "_double");
+    std::string aNewName = GenerateGroupName( std::string(elemGroupName.in()) + "_double");
     if ( !getEditor().GetLastCreatedElems().empty() && theElemGroupNeeded )
     {
-      SMESH::long_array_var anIds = GetLastCreatedElems();
+      SMESH::smIdType_array_var anIds = GetLastCreatedElems();
       SMESH::ElementType aGroupType = myMesh_i->GetElementType(anIds[0], true);
       aNewElemGroup = myMesh_i->CreateGroup(aGroupType, aNewName.c_str());
       aNewElemGroup->Add(anIds);
     }
     if ( !getEditor().GetLastCreatedNodes().empty() && theNodeGroupNeeded )
     {
-      SMESH::long_array_var anIds = GetLastCreatedNodes();
+      SMESH::smIdType_array_var anIds = GetLastCreatedNodes();
       aNewNodeGroup = myMesh_i->CreateGroup(SMESH::NODE, aNewName.c_str());
       aNewNodeGroup->Add(anIds);
     }
@@ -6219,7 +6412,6 @@ CORBA::Boolean
 SMESH_MeshEditor_i::DoubleNodeElemGroupInRegion(SMESH::SMESH_GroupBase_ptr theElems,
                                                 SMESH::SMESH_GroupBase_ptr theNodesNot,
                                                 GEOM::GEOM_Object_ptr      theShape )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   if ( CORBA::is_nil( theElems ) && theElems->GetType() == SMESH::NODE )
@@ -6269,7 +6461,7 @@ static void listOfGroupToSet(const SMESH::ListOfGroups& theGrpList,
     if ( !CORBA::is_nil( aGrp ) && (theIsNodeGrp ? aGrp->GetType() == SMESH::NODE
                                     : aGrp->GetType() != SMESH::NODE ) )
     {
-      SMESH::long_array_var anIDs = aGrp->GetIDs();
+      SMESH::smIdType_array_var anIDs = aGrp->GetIDs();
       arrayToSet( anIDs, theMeshDS, theElemSet, theIsNodeGrp ? SMDSAbs_Node : SMDSAbs_All );
     }
   }
@@ -6292,7 +6484,6 @@ CORBA::Boolean
 SMESH_MeshEditor_i::DoubleNodeElemGroups(const SMESH::ListOfGroups& theElems,
                                          const SMESH::ListOfGroups& theNodesNot,
                                          const SMESH::ListOfGroups& theAffectedElems)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -6334,7 +6525,6 @@ SMESH::SMESH_Group_ptr
 SMESH_MeshEditor_i::DoubleNodeElemGroupsNew(const SMESH::ListOfGroups& theElems,
                                             const SMESH::ListOfGroups& theNodesNot,
                                             const SMESH::ListOfGroups& theAffectedElems)
-  throw (SALOME::SALOME_Exception)
 {
   TPythonDump pyDump;
   SMESH::ListOfGroups_var twoGroups = DoubleNodeElemGroups2New( theElems,
@@ -6371,7 +6561,6 @@ SMESH_MeshEditor_i::DoubleNodeElemGroups2New(const SMESH::ListOfGroups& theElems
                                              const SMESH::ListOfGroups& theAffectedElems,
                                              CORBA::Boolean             theElemGroupNeeded,
                                              CORBA::Boolean             theNodeGroupNeeded)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH::SMESH_Group_var aNewElemGroup, aNewNodeGroup;
@@ -6396,17 +6585,17 @@ SMESH_MeshEditor_i::DoubleNodeElemGroups2New(const SMESH::ListOfGroups& theElems
   {
     // Create group with newly created elements
     CORBA::String_var elemGroupName = theElems[0]->GetName();
-    std::string aNewName = generateGroupName( std::string(elemGroupName.in()) + "_double");
+    std::string aNewName = GenerateGroupName( std::string(elemGroupName.in()) + "_double");
     if ( !getEditor().GetLastCreatedElems().empty() && theElemGroupNeeded )
     {
-      SMESH::long_array_var anIds = GetLastCreatedElems();
+      SMESH::smIdType_array_var anIds = GetLastCreatedElems();
       SMESH::ElementType aGroupType = myMesh_i->GetElementType(anIds[0], true);
       aNewElemGroup = myMesh_i->CreateGroup(aGroupType, aNewName.c_str());
       aNewElemGroup->Add(anIds);
     }
     if ( !getEditor().GetLastCreatedNodes().empty() && theNodeGroupNeeded )
     {
-      SMESH::long_array_var anIds = GetLastCreatedNodes();
+      SMESH::smIdType_array_var anIds = GetLastCreatedNodes();
       aNewNodeGroup = myMesh_i->CreateGroup(SMESH::NODE, aNewName.c_str());
       aNewNodeGroup->Add(anIds);
     }
@@ -6452,7 +6641,6 @@ CORBA::Boolean
 SMESH_MeshEditor_i::DoubleNodeElemGroupsInRegion(const SMESH::ListOfGroups& theElems,
                                                  const SMESH::ListOfGroups& theNodesNot,
                                                  GEOM::GEOM_Object_ptr      theShape )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -6483,7 +6671,7 @@ SMESH_MeshEditor_i::DoubleNodeElemGroupsInRegion(const SMESH::ListOfGroups& theE
          duplication is not performed.
   This method is the first step of DoubleNodeElemGroupsInRegion.
   \param theElems - list of groups of elements (edges or faces) to be replicated
-  \param theNodesNot - list of groups of nodes not to replicated
+  \param theNodesNot - list of groups of nodes not to replicate
   \param theShape - shape to detect affected elements (element which geometric center
          located on or inside shape).
          The replicated nodes should be associated to affected elements.
@@ -6495,7 +6683,6 @@ SMESH::ListOfGroups*
 SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theElems,
                                                 const SMESH::ListOfGroups& theNodesNot,
                                                 GEOM::GEOM_Object_ptr      theShape )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   SMESH::ListOfGroups_var aListOfGroups = new SMESH::ListOfGroups();
@@ -6522,9 +6709,9 @@ SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theEl
   TPythonDump pyDump;
   if ( aResult && anAffected.size() > 0 )
   {
-    SMESH::long_array_var volumeIds = new SMESH::long_array;
-    SMESH::long_array_var   faceIds = new SMESH::long_array;
-    SMESH::long_array_var   edgeIds = new SMESH::long_array;
+    SMESH::smIdType_array_var volumeIds = new SMESH::smIdType_array;
+    SMESH::smIdType_array_var   faceIds = new SMESH::smIdType_array;
+    SMESH::smIdType_array_var   edgeIds = new SMESH::smIdType_array;
     volumeIds->length( anAffected.size() );
     faceIds  ->length( anAffected.size() );
     edgeIds  ->length( anAffected.size() );
@@ -6536,7 +6723,7 @@ SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theEl
     for (; eIt != anAffected.end(); ++eIt)
     {
       const SMDS_MeshElement* anElem = *eIt;
-      int elemId = anElem->GetID();
+      smIdType elemId = anElem->GetID();
       switch ( anElem->GetType() ) {
       case SMDSAbs_Volume: volumeIds[ivol++] = elemId; break;
       case SMDSAbs_Face:    faceIds[iface++] = elemId; break;
@@ -6552,7 +6739,7 @@ SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theEl
     if ( ivol > 0 )
     {
       aNewVolumeGroup = myMesh_i->CreateGroup(SMESH::VOLUME,
-                                              generateGroupName("affectedVolumes").c_str());
+                                              GenerateGroupName("affectedVolumes").c_str());
       aNewVolumeGroup->Add(volumeIds);
       aListOfGroups->length( nbGroups+1 );
       aListOfGroups[ nbGroups++ ] = aNewVolumeGroup._retn();
@@ -6560,7 +6747,7 @@ SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theEl
     if ( iface > 0 )
     {
       aNewFaceGroup = myMesh_i->CreateGroup(SMESH::FACE,
-                                            generateGroupName("affectedFaces").c_str());
+                                            GenerateGroupName("affectedFaces").c_str());
       aNewFaceGroup->Add(faceIds);
       aListOfGroups->length( nbGroups+1 );
       aListOfGroups[ nbGroups++ ] = aNewFaceGroup._retn();
@@ -6568,7 +6755,7 @@ SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theEl
     if ( iedge > 0 )
     {
       aNewEdgeGroup = myMesh_i->CreateGroup(SMESH::EDGE,
-                                            generateGroupName("affectedEdges").c_str());
+                                            GenerateGroupName("affectedEdges").c_str());
       aNewEdgeGroup->Add(edgeIds);
       aListOfGroups->length( nbGroups+1 );
       aListOfGroups[ nbGroups++ ] = aNewEdgeGroup._retn();
@@ -6595,7 +6782,6 @@ SMESH_MeshEditor_i::AffectedElemGroupsInRegion( const SMESH::ListOfGroups& theEl
 //================================================================================
 
 CORBA::Boolean SMESH_MeshEditor_i::Make2DMeshFrom3D()
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -6637,7 +6823,6 @@ CORBA::Boolean
 SMESH_MeshEditor_i::DoubleNodesOnGroupBoundaries( const SMESH::ListOfGroups& theDomains,
                                                   CORBA::Boolean             createJointElems,
                                                   CORBA::Boolean             onAllBoundaries )
-  throw (SALOME::SALOME_Exception)
 {
   bool isOK = false;
 
@@ -6660,7 +6845,7 @@ SMESH_MeshEditor_i::DoubleNodesOnGroupBoundaries( const SMESH::ListOfGroups& the
     {
 //      if ( aGrp->GetType() != SMESH::VOLUME )
 //        THROW_SALOME_CORBA_EXCEPTION("Not a volume group", SALOME::BAD_PARAM);
-      SMESH::long_array_var anIDs = aGrp->GetIDs();
+      SMESH::smIdType_array_var anIDs = aGrp->GetIDs();
       arrayToSet( anIDs, aMeshDS, domains[ i ], SMDSAbs_All );
     }
   }
@@ -6695,7 +6880,6 @@ SMESH_MeshEditor_i::DoubleNodesOnGroupBoundaries( const SMESH::ListOfGroups& the
 
 CORBA::Boolean
 SMESH_MeshEditor_i::CreateFlatElementsOnFacesGroups( const SMESH::ListOfGroups& theGroupsOfFaces )
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -6713,7 +6897,7 @@ SMESH_MeshEditor_i::CreateFlatElementsOnFacesGroups( const SMESH::ListOfGroups&
       TIDSortedElemSet faceGroup;
       faceGroup.clear();
       faceGroups.push_back(faceGroup);
-      SMESH::long_array_var anIDs = aGrp->GetIDs();
+      SMESH::smIdType_array_var anIDs = aGrp->GetIDs();
       arrayToSet( anIDs, aMeshDS, faceGroups[ i ], SMDSAbs_All );
     }
   }
@@ -6748,7 +6932,6 @@ void SMESH_MeshEditor_i::CreateHoleSkin(CORBA::Double                  radius,
                                         const char*                    groupName,
                                         const SMESH::double_array&     theNodesCoords,
                                         SMESH::array_of_long_array_out GroupsOfNodes)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
 
@@ -6816,7 +6999,6 @@ SMESH_MeshEditor_i::MakeBoundaryMesh(SMESH::SMESH_IDSource_ptr idSource,
                                      CORBA::Boolean            toCopyElements,
                                      CORBA::Boolean            toCopyExistingBondary,
                                      SMESH::SMESH_Group_out    group)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -6913,7 +7095,6 @@ CORBA::Long SMESH_MeshEditor_i::MakeBoundaryElements(SMESH::Bnd_Dimension dim,
                                                      const SMESH::ListOfIDSources& groups,
                                                      SMESH::SMESH_Mesh_out mesh,
                                                      SMESH::SMESH_Group_out group)
-  throw (SALOME::SALOME_Exception)
 {
   SMESH_TRY;
   initData();
@@ -6930,7 +7111,7 @@ CORBA::Long SMESH_MeshEditor_i::MakeBoundaryElements(SMESH::Bnd_Dimension dim,
   for ( CORBA::ULong i = 0; i < groups.length(); ++i )
   {
     SMESH::SMESH_Mesh_var m = groups[i]->GetMesh();
-    if ( myMesh_i != SMESH::DownCast<SMESH_Mesh_i*>( m ))
+    if ( !m->_is_nil() && myMesh_i != SMESH::DownCast<SMESH_Mesh_i*>( m ))
       groupsOfOtherMesh[ nbGroupsOfOtherMesh++ ] = groups[i];
     else
       groupsOfThisMesh[ nbGroups++ ] = groups[i];
@@ -7068,7 +7249,6 @@ CORBA::Long SMESH_MeshEditor_i::MakeBoundaryElements(SMESH::Bnd_Dimension dim,
 
 void SMESH_MeshEditor_i::MakePolyLine(SMESH::ListOfPolySegments& theSegments,
                                       const char*                theGroupName)
-  throw (SALOME::SALOME_Exception)
 {
   if ( theSegments.length() == 0 )
     THROW_SALOME_CORBA_EXCEPTION("No segments given", SALOME::BAD_PARAM );
@@ -7090,16 +7270,16 @@ void SMESH_MeshEditor_i::MakePolyLine(SMESH::ListOfPolySegments& theSegments,
   }
   else if ( theGroupName[0] ) // find/create a group of segments
   {
-    SMESH_Mesh::GroupIteratorPtr grpIt = myMesh->GetGroups();
-    while ( !groupDS && grpIt->more() )
-    {
-      SMESH_Group* group = grpIt->next();
-      if ( group->GetGroupDS()->GetType() == SMDSAbs_Edge &&
-           strcmp( group->GetName(), theGroupName ) == 0 )
-      {
-        groupDS = dynamic_cast< SMESHDS_Group* >( group->GetGroupDS() );
-      }
-    }
+    // SMESH_Mesh::GroupIteratorPtr grpIt = myMesh->GetGroups();
+    // while ( !groupDS && grpIt->more() )
+    // {
+    //   SMESH_Group* group = grpIt->next();
+    //   if ( group->GetGroupDS()->GetType() == SMDSAbs_Edge &&
+    //        strcmp( group->GetName(), theGroupName ) == 0 )
+    //   {
+    //     groupDS = dynamic_cast< SMESHDS_Group* >( group->GetGroupDS() );
+    //   }
+    // }
     if ( !groupDS )
     {
       SMESH::SMESH_Group_var groupVar = myMesh_i->CreateGroup( SMESH::EDGE, theGroupName );
@@ -7110,24 +7290,24 @@ void SMESH_MeshEditor_i::MakePolyLine(SMESH::ListOfPolySegments& theSegments,
   }
 
   // convert input polySegments
-  ::SMESH_MeshEditor::TListOfPolySegments segments( theSegments.length() );
+  SMESH_MeshAlgos::TListOfPolySegments segments( theSegments.length() );
   for ( CORBA::ULong i = 0; i < theSegments.length(); ++i )
   {
-    SMESH::PolySegment&               segIn = theSegments[ i ];
-    ::SMESH_MeshEditor::PolySegment& segOut = segments[ i ];
+    SMESH::PolySegment&            segIn = theSegments[ i ];
+    SMESH_MeshAlgos::PolySegment& segOut = segments[ i ];
     segOut.myNode1[0] = meshDS->FindNode( segIn.node1ID1 );
     segOut.myNode2[0] = meshDS->FindNode( segIn.node1ID2 );
     segOut.myNode1[1] = meshDS->FindNode( segIn.node2ID1 );
     segOut.myNode2[1] = meshDS->FindNode( segIn.node2ID2 );
+    segOut.myXYZ[0].SetCoord( segIn.xyz1.x,
+                              segIn.xyz1.y,
+                              segIn.xyz1.z);
+    segOut.myXYZ[1].SetCoord( segIn.xyz2.x,
+                              segIn.xyz2.y,
+                              segIn.xyz2.z);
     segOut.myVector.SetCoord( segIn.vector.PS.x,
                               segIn.vector.PS.y,
                               segIn.vector.PS.z );
-    if ( !segOut.myNode1[0] )
-      THROW_SALOME_CORBA_EXCEPTION( SMESH_Comment( "Invalid node ID: ") << segIn.node1ID1,
-                                    SALOME::BAD_PARAM );
-    if ( !segOut.myNode1[1] )
-      THROW_SALOME_CORBA_EXCEPTION( SMESH_Comment( "Invalid node ID: ") << segIn.node2ID1,
-                                    SALOME::BAD_PARAM );
   }
 
   // get a static ElementSearcher
@@ -7137,15 +7317,24 @@ void SMESH_MeshEditor_i::MakePolyLine(SMESH::ListOfPolySegments& theSegments,
     theElementSearcher = SMESH_MeshAlgos::GetElementSearcher( *getMeshDS() );
 
   // compute
-  getEditor().MakePolyLine( segments, groupDS, theElementSearcher );
+  std::vector<const SMDS_MeshElement*> newEdges;
+  std::vector<const SMDS_MeshNode*>    newNodes;
+  SMESH_MeshAlgos::MakePolyLine( meshDS, segments, newEdges, newNodes,
+                                 groupDS ? &groupDS->SMDSGroup() : 0,
+                                 theElementSearcher );
+
+  const_cast< SMESH_SequenceOfElemPtr& >( getEditor().GetLastCreatedElems() ).
+    swap( newEdges );
+  const_cast< SMESH_SequenceOfElemPtr& >( getEditor().GetLastCreatedNodes() ).
+    assign( newNodes.begin(), newNodes.end() );
 
   // return vectors
   if ( myIsPreviewMode )
   {
     for ( CORBA::ULong i = 0; i < theSegments.length(); ++i )
     {
-      SMESH::PolySegment&             segOut = theSegments[ i ];
-      ::SMESH_MeshEditor::PolySegment& segIn = segments[ i ];
+      SMESH::PolySegment&           segOut = theSegments[ i ];
+      SMESH_MeshAlgos::PolySegment& segIn = segments[ i ];
       segOut.vector.PS.x = segIn.myVector.X();
       segOut.vector.PS.y = segIn.myVector.Y();
       segOut.vector.PS.z = segIn.myVector.Z();
@@ -7173,3 +7362,57 @@ void SMESH_MeshEditor_i::MakePolyLine(SMESH::ListOfPolySegments& theSegments,
   SMESH_CATCH( SMESH::throwCorbaException );
   return;
 }
+
+//================================================================================
+/*!
+ * \brief Create a slot of given width around given 1D elements lying on a triangle mesh.
+ *        The slot is constructed by cutting faces by cylindrical surfaces made
+ *        around each segment. Segments are expected to be created by MakePolyLine().
+ * \return Edges located at the slot boundary
+ */
+//================================================================================
+
+SMESH::ListOfEdges* SMESH_MeshEditor_i::MakeSlot(SMESH::SMESH_GroupBase_ptr theSegments,
+                                                 CORBA::Double              theWidth)
+{
+  if ( CORBA::is_nil( theSegments ) ||
+       theSegments->GetType() != SMESH::EDGE )
+    THROW_SALOME_CORBA_EXCEPTION("No segments given", SALOME::BAD_PARAM );
+  if ( myMesh->NbFaces() == 0 )
+    THROW_SALOME_CORBA_EXCEPTION("No faces in the mesh", SALOME::BAD_PARAM );
+
+  SMESH::ListOfEdges_var resultEdges = new SMESH::ListOfEdges;
+
+  SMESH_TRY;
+  initData(/*deleteSearchers=*/false);
+
+  SMESHDS_Mesh* meshDS = getMeshDS();
+
+  // get standalone face groups to be updated
+  std::vector< SMDS_MeshGroup* > faceGroups;
+  const std::set<SMESHDS_GroupBase*>& allGroups = meshDS->GetGroups();
+  std::set<SMESHDS_GroupBase*>::const_iterator grIt = allGroups.begin();
+  for ( ; grIt != allGroups.end(); ++grIt )
+    if ( const SMESHDS_Group* gr = dynamic_cast< const SMESHDS_Group* >( *grIt ))
+      if ( gr->GetType() == SMDSAbs_Face )
+        faceGroups.push_back( & const_cast< SMESHDS_Group* >( gr )->SMDSGroup() );
+
+  std::vector< SMESH_MeshAlgos::Edge > edges =
+    SMESH_MeshAlgos::MakeSlot( SMESH_Mesh_i::GetElements( theSegments, SMESH::EDGE ),
+                               theWidth, meshDS, faceGroups );
+
+  resultEdges->length( edges.size() );
+  for ( size_t i = 0; i < edges.size(); ++i )
+  {
+    resultEdges[ i ].node1  = edges[i]._node1->GetID();
+    resultEdges[ i ].node2  = edges[i]._node2->GetID();
+    resultEdges[ i ].medium = edges[i]._medium ? edges[i]._medium->GetID() : 0;
+  }
+
+  meshDS->Modified();
+  SMESH_CATCH( SMESH::throwCorbaException );
+
+  TSearchersDeleter::Delete(); // face searcher becomes invalid as some faces were removed
+
+  return resultEdges._retn();
+}