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#16459 EDF 14133 - Complete Merge Nodes / Merge Elements operations
[modules/smesh.git] / src / SMESHGUI / SMESHGUI.cxx
index 41d4c42bd7faeaba6299a776749ffb68a3bbfb1c..1e32566a2be0ffef17e99556a01b7a642d8c2dd2 100644 (file)
 #include "SMESHGUI_CopyMeshDlg.h"
 #include "SMESHGUI_CreatePolyhedralVolumeDlg.h"
 #include "SMESHGUI_DeleteGroupDlg.h"
+#include "SMESHGUI_DisplayEntitiesDlg.h"
 #include "SMESHGUI_Displayer.h"
 #include "SMESHGUI_DuplicateNodesDlg.h"
 #include "SMESHGUI_ExtrusionAlongPathDlg.h"
 #include "SMESHGUI_ExtrusionDlg.h"
+#include "SMESHGUI_FaceGroupsSeparatedByEdgesDlg.h"
 #include "SMESHGUI_FieldSelectorWdg.h"
 #include "SMESHGUI_FileInfoDlg.h"
 #include "SMESHGUI_FileValidator.h"
 #include "SMESHGUI_FilterDlg.h"
 #include "SMESHGUI_FilterLibraryDlg.h"
+#include "SMESHGUI_FilterUtils.h"
 #include "SMESHGUI_FindElemByPointDlg.h"
+#include "SMESHGUI_GEOMGenUtils.h"
 #include "SMESHGUI_GroupDlg.h"
 #include "SMESHGUI_GroupOnShapeDlg.h"
 #include "SMESHGUI_GroupOpDlg.h"
+#include "SMESHGUI_GroupUtils.h"
 #include "SMESHGUI_Hypotheses.h"
+#include "SMESHGUI_HypothesesUtils.h"
 #include "SMESHGUI_Make2DFrom3DOp.h"
 #include "SMESHGUI_MakeNodeAtPointDlg.h"
 #include "SMESHGUI_Measurements.h"
 #include "SMESHGUI_MeshOp.h"
 #include "SMESHGUI_MeshOrderOp.h"
 #include "SMESHGUI_MeshPatternDlg.h"
+#include "SMESHGUI_MeshUtils.h"
 #include "SMESHGUI_MultiEditDlg.h"
 #include "SMESHGUI_NodesDlg.h"
+#include "SMESHGUI_OffsetDlg.h"
 #include "SMESHGUI_Operations.h"
+#include "SMESHGUI_PatternUtils.h"
 #include "SMESHGUI_Preferences_ScalarBarDlg.h"
 #include "SMESHGUI_PropertiesDlg.h"
 #include "SMESHGUI_RemoveElementsDlg.h"
 #include "SMESHGUI_SewingDlg.h"
 #include "SMESHGUI_SingleEditDlg.h"
 #include "SMESHGUI_SmoothingDlg.h"
+#include "SMESHGUI_SpinBox.h"
+#include "SMESHGUI_SplitBiQuad.h"
 #include "SMESHGUI_SymmetryDlg.h"
 #include "SMESHGUI_TranslationDlg.h"
 #include "SMESHGUI_TransparencyDlg.h"
-#include "SMESHGUI_DisplayEntitiesDlg.h"
-#include "SMESHGUI_SplitBiQuad.h"
-
-#include "SMESHGUI_FilterUtils.h"
-#include "SMESHGUI_GEOMGenUtils.h"
-#include "SMESHGUI_GroupUtils.h"
-#include "SMESHGUI_HypothesesUtils.h"
-#include "SMESHGUI_MeshUtils.h"
-#include "SMESHGUI_PatternUtils.h"
 #include "SMESHGUI_Utils.h"
 #include "SMESHGUI_VTKUtils.h"
 
 #include "SMESH_ActorUtils.h"
 #include "SMESH_Client.hxx"
 #include "SMESH_ScalarBarActor.h"
+#include <SMESH_Comment.hxx>
 #include "SMESH_TypeFilter.hxx"
 
 // SALOME GUI includes
-#include <SalomeApp_Application.h>
-#include <SalomeApp_CheckFileDlg.h>
-#include <SalomeApp_DataObject.h>
-#include <SalomeApp_Study.h>
-#include <SalomeApp_Tools.h>
-
 #include <LightApp_DataOwner.h>
 #include <LightApp_NameDlg.h>
 #include <LightApp_Preferences.h>
 #include <LightApp_SelectionMgr.h>
 #include <LightApp_UpdateFlags.h>
-
-#include <SVTK_ViewManager.h>
-#include <SVTK_ViewModel.h>
-#include <SVTK_ViewWindow.h>
-
-#include <VTKViewer_Algorithm.h>
-
+#include <QtxFontEdit.h>
+#include <QtxPopupMgr.h>
+#include <SALOME_ListIO.hxx>
 #include <SUIT_Desktop.h>
 #include <SUIT_FileDlg.h>
 #include <SUIT_MessageBox.h>
 #include <SUIT_OverrideCursor.h>
 #include <SUIT_ResourceMgr.h>
 #include <SUIT_Session.h>
-
-#include <QtxPopupMgr.h>
-#include <QtxFontEdit.h>
-
-#include <SALOME_ListIO.hxx>
+#include <SVTK_Renderer.h>
+#include <SVTK_ViewManager.h>
+#include <SVTK_ViewModel.h>
+#include <SVTK_ViewWindow.h>
+#include <SalomeApp_Application.h>
+#include <SalomeApp_CheckFileDlg.h>
+#include <SalomeApp_DataObject.h>
+#include <SalomeApp_Study.h>
+#include <SalomeApp_Tools.h>
+#include <VTKViewer_Algorithm.h>
 
 #ifndef DISABLE_PLOT2DVIEWER
 #include <SPlot2d_ViewModel.h>
 #include CORBA_CLIENT_HEADER(SALOMEDS_Attributes)
 #include CORBA_CLIENT_HEADER(SMESH_MeshEditor)
 #include CORBA_CLIENT_HEADER(SMESH_Measurements)
+#include CORBA_CLIENT_HEADER(SMESH_Mesh)
 
 // Qt includes
 // #define       INCLUDE_MENUITEM_DEF // VSR commented ????????
 #include <QApplication>
+#include <QCheckBox>
+#include <QDialogButtonBox>
+#include <QLayout>
+#include <QListView>
 #include <QMenu>
 #include <QTextStream>
-#include <QListView>
 #include <QTreeView>
-#include <QCheckBox>
-#include <QLayout>
-#include <QDialogButtonBox>
 
 // BOOST includes
 #include <boost/shared_ptr.hpp>
@@ -194,7 +193,7 @@ namespace
 
   void ExportMeshToFile(int theCommandID);
 
-  void SetDisplayMode(int theCommandID, SMESHGUI_StudyId2MarkerMap& theMarkerMap);
+  void SetDisplayMode(int theCommandID, VTK::MarkerMap& theMarkerMap);
 
   void SetDisplayEntity(int theCommandID);
 
@@ -215,29 +214,34 @@ namespace
     QStringList filter;
     std::string myExtension;
 
-    if ( theCommandID == SMESHOp::OpImportMED ) {
+    if ( theCommandID == SMESHOp::OpImportMED ||
+         theCommandID == SMESHOp::OpPopupImportMED ) {
       filter.append( QObject::tr( "MED_FILES_FILTER" ) + " (*.*med)" );
       filter.append( QObject::tr( "ALL_FILES_FILTER" ) + " (*)" );
     }
-    else if ( theCommandID == SMESHOp::OpImportUNV ) {
+    else if ( theCommandID == SMESHOp::OpImportUNV ||
+              theCommandID == SMESHOp::OpPopupImportUNV ) {
       filter.append( QObject::tr( "IDEAS_FILES_FILTER" ) + " (*.unv)" );
     }
-    else if ( theCommandID == SMESHOp::OpImportDAT ) {
+    else if ( theCommandID == SMESHOp::OpImportDAT ||
+              theCommandID == SMESHOp::OpPopupImportDAT ) {
       filter.append( QObject::tr( "DAT_FILES_FILTER" ) + " (*.dat)" );
     }
-    else if ( theCommandID == SMESHOp::OpImportSTL ) {
+    else if ( theCommandID == SMESHOp::OpImportSTL ||
+              theCommandID == SMESHOp::OpPopupImportSTL ) {
       filter.append( QObject::tr( "STL_FILES_FILTER" ) + " (*.stl)" );
     }
-  #ifdef WITH_CGNS
-    else if ( theCommandID == SMESHOp::OpImportCGNS ) {
+    else if ( theCommandID == SMESHOp::OpImportCGNS ||
+              theCommandID == SMESHOp::OpPopupImportCGNS ) {
       filter.append( QObject::tr( "CGNS_FILES_FILTER" ) + " (*.cgns)" );
     }
-  #endif
-    else if ( theCommandID == SMESHOp::OpImportSAUV ) {
-      filter.append( QObject::tr( "SAUV files (*.sauv*)" ) );
-      filter.append( QObject::tr( "All files (*)" ) );
+    else if ( theCommandID == SMESHOp::OpImportSAUV ||
+              theCommandID == SMESHOp::OpPopupImportSAUV ) {
+      filter.append( QObject::tr( "SAUV_FILES_FILTER" ) + " (*.sauv *.sauve)" );
+      filter.append( QObject::tr( "ALL_FILES_FILTER" ) + " (*)" );
     }
-    else if ( theCommandID == SMESHOp::OpImportGMF ) {
+    else if ( theCommandID == SMESHOp::OpImportGMF ||
+              theCommandID == SMESHOp::OpPopupImportGMF ) {
       filter.append( QObject::tr( "GMF_ASCII_FILES_FILTER" ) + " (*.mesh)"  );
       filter.append( QObject::tr( "GMF_BINARY_FILES_FILTER") + " (*.meshb)" );
     }
@@ -271,7 +275,7 @@ namespace
     if ( filenames.count() > 0 )
     {
       SUIT_OverrideCursor wc;
-      _PTR(Study) aStudy = SMESH::GetActiveStudyDocument();
+      _PTR(Study) aStudy = SMESH::getStudy();
 
       QStringList errors;
       QStringList anEntryList;
@@ -283,6 +287,7 @@ namespace
         try {
           switch ( theCommandID ) {
           case SMESHOp::OpImportDAT:
+          case SMESHOp::OpPopupImportDAT:
             {
               // DAT format (currently unsupported)
               errors.append( QString( "%1 :\n\t%2" ).arg( filename ).
@@ -290,6 +295,7 @@ namespace
               break;
             }
           case SMESHOp::OpImportUNV:
+          case SMESHOp::OpPopupImportUNV:
             {
               // UNV format
               aMeshes->length( 1 );
@@ -300,6 +306,7 @@ namespace
               break;
             }
           case SMESHOp::OpImportMED:
+          case SMESHOp::OpPopupImportMED:
             {
               // MED format
               SMESH::DriverMED_ReadStatus res;
@@ -311,6 +318,7 @@ namespace
               break;
             }
           case SMESHOp::OpImportSTL:
+          case SMESHOp::OpPopupImportSTL:
             {
               // STL format
               aMeshes->length( 1 );
@@ -321,8 +329,8 @@ namespace
               }
               break;
             }
-        #ifdef WITH_CGNS
           case SMESHOp::OpImportCGNS:
+          case SMESHOp::OpPopupImportCGNS:
             {
               // CGNS format
               SMESH::DriverMED_ReadStatus res;
@@ -333,8 +341,8 @@ namespace
               }
               break;
             }
-        #endif
           case SMESHOp::OpImportSAUV:
+          case SMESHOp::OpPopupImportSAUV:
             {
               // SAUV format
               SMESH::DriverMED_ReadStatus res;
@@ -346,6 +354,7 @@ namespace
               break;
             }
           case SMESHOp::OpImportGMF:
+          case SMESHOp::OpPopupImportGMF:
             {
               // GMF format
               SMESH::ComputeError_var res;
@@ -433,12 +442,8 @@ namespace
                          theCommandID == SMESHOp::OpPopupExportUNV );
     const bool isSTL = ( theCommandID == SMESHOp::OpExportSTL ||
                          theCommandID == SMESHOp::OpPopupExportSTL );
-#ifdef WITH_CGNS
     const bool isCGNS= ( theCommandID == SMESHOp::OpExportCGNS ||
                          theCommandID == SMESHOp::OpPopupExportCGNS );
-#else
-    const bool isCGNS= false;
-#endif
     const bool isSAUV= ( theCommandID == SMESHOp::OpExportSAUV ||
                          theCommandID == SMESHOp::OpPopupExportSAUV );
     const bool isGMF = ( theCommandID == SMESHOp::OpExportGMF ||
@@ -483,17 +488,11 @@ namespace
         QDialogButtonBox* btnbox = msgBox.findChild<QDialogButtonBox*>();
         lt->addWidget(&dontShowCheckBox, lt->rowCount(), lt->columnCount()-1, lt->rowCount(), lt->columnCount());
         lt->addWidget(btnbox, lt->rowCount(), 0, lt->rowCount(), lt->columnCount());
-        if(msgBox.exec() == QMessageBox::Ok)
-        {
-          if(dontShowCheckBox.checkState() == Qt::Checked)
-          {
-            if ( resMgr )
-              resMgr->setValue( "SMESH", "show_warning", false);
-          }
-          aCheckWarn = false;
-        }
-        else
+        if ( msgBox.exec() != QMessageBox::Ok )
           return;
+
+        if ( dontShowCheckBox.checkState() == Qt::Checked && resMgr )
+          resMgr->setValue( "SMESH", "show_warning", false);
       }
 
       QString aMeshName = anIObject->getName();
@@ -542,7 +541,7 @@ namespace
         }
       }
     }
-    
+
     // Warn the user about presence of not supported elements
     QString format;
     std::vector< SMESH::EntityType > notSupportedElemTypes, presentNotSupported;
@@ -597,6 +596,7 @@ namespace
       notSupportedElemTypes.push_back( SMESH::Entity_Quad_Polygon );
       notSupportedElemTypes.push_back( SMESH::Entity_Quad_Pyramid );
       notSupportedElemTypes.push_back( SMESH::Entity_Quad_Penta );
+      notSupportedElemTypes.push_back( SMESH::Entity_BiQuad_Penta );
       notSupportedElemTypes.push_back( SMESH::Entity_Hexagonal_Prism );
       notSupportedElemTypes.push_back( SMESH::Entity_Polyhedra );
       notSupportedElemTypes.push_back( SMESH::Entity_Quad_Polyhedra );
@@ -620,11 +620,12 @@ namespace
         "SMESH_TETRAHEDRA","SMESH_QUADRATIC_TETRAHEDRONS","SMESH_PYRAMIDS",
         "SMESH_QUADRATIC_PYRAMIDS","SMESH_HEXAHEDRA","SMESH_QUADRATIC_HEXAHEDRONS",
         "SMESH_TRIQUADRATIC_HEXAHEDRONS","SMESH_PENTAHEDRA","SMESH_QUADRATIC_PENTAHEDRONS",
+        "SMESH_BIQUADRATIC_PENTAHEDRONS",
         "SMESH_OCTAHEDRA","SMESH_POLYEDRONS","SMESH_QUADRATIC_POLYEDRONS","SMESH_BALLS"
       };
       // is typeMsg complete? (compilation failure mains that enum SMDSAbs_EntityType changed)
       const int nbTypes = sizeof( typeMsg ) / sizeof( const char* );
-      int _assert[( nbTypes == SMESH::Entity_Last ) ? 2 : -1 ]; _assert[0]=_assert[1];
+      int _assert[( nbTypes == SMESH::Entity_Last ) ? 2 : -1 ]; _assert[0]=_assert[1]=0;
 
       QString andStr = " " + QObject::tr("SMESH_AND") + " ", comma(", ");
       for ( size_t iType = 0; iType < presentNotSupported.size(); ++iType ) {
@@ -644,8 +645,10 @@ namespace
 
     // Get parameters of export operation
 
-    QString            aFilename;
-    SMESH::MED_VERSION aFormat = SMESH::MED_V2_2;
+    QString aFilename;
+    int aFormat =-1;         // for MED version used for write
+    bool isOkToWrite = true; // to check MED file version compatibility before adding a mesh in an existing file
+
     // Init the parameters with the default values
     bool aIsASCII_STL   = true;
     bool toCreateGroups = false;
@@ -653,6 +656,7 @@ namespace
       toCreateGroups = resMgr->booleanValue( "SMESH", "auto_groups", false );
     bool toOverwrite  = true;
     bool toFindOutDim = true;
+    double       zTol = resMgr ? resMgr->doubleValue( "SMESH", "med_ztolerance", 0. ) : 0.;
 
     QString aFilter, aTitle = QObject::tr("SMESH_EXPORT_MESH");
     QString anInitialPath = "";
@@ -661,7 +665,7 @@ namespace
 
     QList< QPair< GEOM::ListOfFields_var, QString > > aFieldList;
 
-    // Get a file name to write in and additional otions
+    // Get a file name to write in and additional options
     if ( isUNV || isDAT || isGMF ) // Export w/o options
     {
       if ( isUNV )
@@ -678,7 +682,14 @@ namespace
     }
     else if ( isCGNS )// Export to CGNS
     {
-      SUIT_FileDlg* fd = new SUIT_FileDlg( SMESHGUI::desktop(), false, true, true );
+      const char* theByTypeResource = "cgns_group_elems_by_type";
+      toCreateGroups = SMESHGUI::resourceMgr()->booleanValue( "SMESH", theByTypeResource, false );
+
+      QStringList checkBoxes;
+      checkBoxes << QObject::tr("CGNS_EXPORT_ELEMS_BY_TYPE");
+
+      SalomeApp_CheckFileDlg* fd =
+        new SalomeApp_CheckFileDlg ( SMESHGUI::desktop(), false, checkBoxes, true, true );
       fd->setWindowTitle( aTitle );
       fd->setNameFilter( QObject::tr( "CGNS_FILES_FILTER" ) + " (*.cgns)" );
       if ( !anInitialPath.isEmpty() )
@@ -686,10 +697,13 @@ namespace
       fd->selectFile(aMeshName);
       SMESHGUI_FileValidator* fv = new SMESHGUI_FileValidator( fd );
       fd->setValidator( fv );
+      fd->SetChecked( toCreateGroups, 0 );
 
       if ( fd->exec() )
         aFilename = fd->selectedFile();
-      toOverwrite = fv->isOverwrite();
+      toOverwrite    = fv->isOverwrite(aFilename);
+      toCreateGroups = fd->IsChecked(0);
+      SMESHGUI::resourceMgr()->setValue("SMESH", theByTypeResource, toCreateGroups );
 
       delete fd;
     }
@@ -722,25 +736,32 @@ namespace
     }
     else if ( isMED || isSAUV ) // Export to MED or SAUV
     {
-      QMap<QString, SMESH::MED_VERSION> aFilterMap;
-      //QString v21 (aMesh->GetVersionString(SMESH::MED_V2_1, 2));
+      int defaultVersion = 0;
+      QMap<QString, int> aFilterMap;
       if ( isMED ) {
-        QString v22 (aMesh->GetVersionString(SMESH::MED_V2_2, 2));
-        //aFilterMap.insert( QObject::tr( "MED_VX_FILES_FILTER" ).arg( v21 ) + " (*.med)", SMESH::MED_V2_1 );
-        aFilterMap.insert( QObject::tr( "MED_VX_FILES_FILTER" ).arg( v22 ) + " (*.med)", SMESH::MED_V2_2 );
+        //filters << QObject::tr( "MED_FILES_FILTER" ) + " (*.med)";
+        //QString vmed (aMesh->GetVersionString(-1, 2));
+        SMESH::long_array_var mvok = aMesh->GetMEDVersionsCompatibleForAppend();
+        if ( mvok->length() > 0)
+          defaultVersion = mvok[0]; // the current version to set the default filter on it
+        for ( CORBA::ULong i = 0; i < mvok->length(); ++i )
+        {
+          QString vs = (char*)( SMESH_Comment( mvok[i]/10 ) << "." << mvok[i]%10 );
+          MESSAGE("MED version: " << vs.toStdString());
+          aFilterMap.insert( QObject::tr( "MED_VX_FILES_FILTER" ).arg( vs ) + " (*.med)",  mvok[i]);
+        }
       }
       else { // isSAUV
-        aFilterMap.insert("All files (*)", SMESH::MED_V2_1 );
-        aFilterMap.insert("SAUV files (*.sauv)", SMESH::MED_V2_2 );
-        aFilterMap.insert("SAUV files (*.sauve)", SMESH::MED_V2_1 );
+        aFilterMap.insert("All files (*)", -1 );
+        aFilterMap.insert("SAUV files (*.sauv)", defaultVersion ); // 0 = default filter (defaultVersion)
+        aFilterMap.insert("SAUV files (*.sauve)", -1 );
       }
-
       QStringList filters;
-      QString aDefaultFilter;
-      QMap<QString, SMESH::MED_VERSION>::const_iterator it = aFilterMap.begin();
+      QMap<QString, int>::const_iterator it = aFilterMap.begin();
+      QString aDefaultFilter = it.key();
       for ( ; it != aFilterMap.end(); ++it ) {
         filters.push_back( it.key() );
-        if (it.value() == SMESH::MED_V2_2)
+        if (it.value() == defaultVersion) // explicit default for MED = current MED version
           aDefaultFilter = it.key();
       }
       QStringList checkBoxes;
@@ -748,9 +769,23 @@ namespace
 
       SMESHGUI_FieldSelectorWdg* fieldSelWdg = new SMESHGUI_FieldSelectorWdg();
       QList< QWidget* > wdgList;
-      if ( fieldSelWdg->GetAllFeilds( aMeshList, aFieldList ))
+      if ( fieldSelWdg->GetAllFields( aMeshList, aFieldList ))
         wdgList.append( fieldSelWdg );
 
+      QWidget*           zTolWdg = new QWidget();
+      QCheckBox*       zTolCheck = new QCheckBox( QObject::tr( "SMESH_ZTOLERANCE" ), zTolWdg );
+      SMESHGUI_SpinBox* zTolSpin = new SMESHGUI_SpinBox( zTolWdg );
+      QHBoxLayout*    zTolLayout = new QHBoxLayout( zTolWdg );
+      zTolLayout->addWidget( zTolCheck );
+      zTolLayout->addWidget( zTolSpin );
+      zTolLayout->setMargin( 0 );
+      zTolSpin->RangeStepAndValidator( 0, 1e+100, 1., "length_precision" );
+      zTolSpin->setValue( zTol );
+      QObject::connect( zTolCheck, SIGNAL( toggled(bool)), zTolSpin, SLOT( setEnabled(bool)));
+      zTolCheck->setChecked( resMgr->booleanValue( "SMESH", "enable_ztolerance", false ));
+      zTolSpin ->setEnabled( zTolCheck->isChecked() );
+      wdgList.append( zTolWdg );
+
       SalomeApp_CheckFileDlg* fd =
         new SalomeApp_CheckFileDlg ( SMESHGUI::desktop(), false, checkBoxes, true, true, wdgList );
       fd->setWindowTitle( aTitle );
@@ -761,8 +796,8 @@ namespace
       if ( !anInitialPath.isEmpty() )
         fd->setDirectory( anInitialPath );
       fd->selectFile(aMeshName);
-      
-      
+
+
       QListView *lview = fd->findChild<QListView*>("listView");
       if( lview ) {
         lview->setMinimumHeight(200);
@@ -776,7 +811,10 @@ namespace
       fd->setValidator( fv );
 
       bool is_ok = false;
-      while (!is_ok) {
+      while (!is_ok)
+      {
+        //MESSAGE("******* Loop on file dialog ***********");
+        isOkToWrite =true;
         if ( fd->exec() )
           aFilename = fd->selectedFile();
         else {
@@ -784,44 +822,33 @@ namespace
           break;
         }
         aFormat = aFilterMap[fd->selectedNameFilter()];
-        toOverwrite = fv->isOverwrite();
+        //MESSAGE("selected version: " << aFormat << " file: " << aFilename.toUtf8().constData());
+        toOverwrite = fv->isOverwrite(aFilename);
+        //MESSAGE("toOverwrite:" << toOverwrite);
         is_ok = true;
         if ( !aFilename.isEmpty() ) {
-          // med-2.1 does not support poly elements
-          if ( aFormat==SMESH::MED_V2_1 )
-            for( aMeshIter = aMeshList.begin(); aMeshIter != aMeshList.end(); aMeshIter++ ) {
-              SMESH::SMESH_IDSource_var aMeshItem = (*aMeshIter).first;
-              SMESH::long_array_var nbElems = aMeshItem->GetMeshInfo();
-              if ( nbElems[ SMESH::Entity_Polygon   ] + nbElems[ SMESH::Entity_Quad_Polygon   ] +
-                   nbElems[ SMESH::Entity_Polyhedra ] + nbElems[ SMESH::Entity_Quad_Polyhedra ])
-              {
-                int aRet = SUIT_MessageBox::warning(SMESHGUI::desktop(),
-                                                    QObject::tr("SMESH_WRN_WARNING"),
-                                                    QObject::tr("SMESH_EXPORT_MED_V2_1").arg((*aMeshIter).second),
-                                                    QObject::tr("SMESH_BUT_YES"),
-                                                    QObject::tr("SMESH_BUT_NO"), 0, 1);
-                if (aRet != 0) {
-                  is_ok = false;
-                  break;
-                }
-              }
-            }
           if( !toOverwrite ) {
-            // can't append to an existing using other format
-            SMESH::MED_VERSION aVersion = SMESH::MED_V2_1;
-            bool isVersionOk = SMESHGUI::GetSMESHGen()->GetMEDVersion( aFilename.toUtf8().constData(), aVersion );
-            if( !isVersionOk || aVersion != aFormat ) {
+            // append is only possible if the existing file format is compatible
+            bool isVersionOk = SMESHGUI::GetSMESHGen()->CheckWriteCompatibility( aFilename.toUtf8().constData() );
+            MESSAGE("Append check, isVersionOk:" << isVersionOk);
+            if ( !isVersionOk ) {
               int aRet = SUIT_MessageBox::warning(SMESHGUI::desktop(),
                                                   QObject::tr("SMESH_WRN_WARNING"),
                                                   QObject::tr("SMESH_EXPORT_MED_VERSION_COLLISION").arg(aFilename),
                                                   QObject::tr("SMESH_BUT_YES"),
                                                   QObject::tr("SMESH_BUT_NO"), 0, 1);
               if (aRet == 0)
+              {
                 toOverwrite = true;
+                //MESSAGE("incompatible MED file version for add, overwrite accepted");
+              }
               else
+              {
+                isOkToWrite = false;
                 is_ok = false;
+                //MESSAGE("incompatible MED file version for add, overwrite refused");
+              }
             }
-
             QStringList aMeshNamesCollisionList;
             SMESH::string_array_var aMeshNames = SMESHGUI::GetSMESHGen()->GetMeshNames( aFilename.toUtf8().constData() );
             for( int i = 0, n = aMeshNames->length(); i < n; i++ ) {
@@ -835,6 +862,7 @@ namespace
               }
             }
             if( !aMeshNamesCollisionList.isEmpty() ) {
+              isOkToWrite = false;
               QString aMeshNamesCollisionString = aMeshNamesCollisionList.join( ", " );
               int aRet = SUIT_MessageBox::warning(SMESHGUI::desktop(),
                                                   QObject::tr("SMESH_WRN_WARNING"),
@@ -842,8 +870,11 @@ namespace
                                                   QObject::tr("SMESH_BUT_YES"),
                                                   QObject::tr("SMESH_BUT_NO"),
                                                   QObject::tr("SMESH_BUT_CANCEL"), 0, 2);
-              if (aRet == 0)
+              MESSAGE("answer collision name " << aRet);
+              if (aRet == 0) {
                 toOverwrite = true;
+                isOkToWrite = true;
+              }
               else if (aRet == 2)
                 is_ok = false;
             }
@@ -852,9 +883,14 @@ namespace
       }
       toCreateGroups = fd->IsChecked(0);
       toFindOutDim   = fd->IsChecked(1);
-      fieldSelWdg->GetSelectedFeilds();
+      zTol           = zTolCheck->isChecked() ? zTolSpin->value() : -1;
+      fieldSelWdg->GetSelectedFields();
+      if ( resMgr ) resMgr->setValue( "SMESH", "enable_ztolerance", zTolCheck->isChecked() );
+
       if ( !fieldSelWdg->parent() )
         delete fieldSelWdg;
+      if ( !zTolWdg->parent() )
+        delete zTolWdg;
       delete fd;
     }
     else
@@ -873,19 +909,20 @@ namespace
 
       try {
         // Renumbering is not needed since SMDS redesign in V6.2.0 (Nov 2010)
-//         bool Renumber = false;
-//         // PAL 14172  : Check of we have to renumber or not from the preferences before export
-//         if (resMgr)
-//           Renumber= resMgr->booleanValue("renumbering");
-//         if (Renumber){
-//           SMESH::SMESH_MeshEditor_var aMeshEditor = aMesh->GetMeshEditor();
+        //         bool Renumber = false;
+        //         // PAL 14172  : Check of we have to renumber or not from the preferences before export
+        //         if (resMgr)
+        //           Renumber= resMgr->booleanValue("renumbering");
+        //         if (Renumber){
+        //           SMESH::SMESH_MeshEditor_var aMeshEditor = aMesh->GetMeshEditor();
 //           aMeshEditor->RenumberNodes();
 //           aMeshEditor->RenumberElements();
 //           if ( SMESHGUI::automaticUpdate() )
 //             SMESH::UpdateView();
 //         }
-        if ( isMED )
+        if ( isMED && isOkToWrite)
         {
+          MESSAGE("OK to write MED file "<< aFilename.toUtf8().constData());
           aMeshIter = aMeshList.begin();
           for( int aMeshIndex = 0; aMeshIter != aMeshList.end(); aMeshIter++, aMeshIndex++ )
           {
@@ -894,13 +931,14 @@ namespace
             const GEOM::ListOfFields&       fields = aFieldList[ aMeshIndex ].first.in();
             const QString&            geoAssFields = aFieldList[ aMeshIndex ].second;
             const bool                   hasFields = ( fields.length() || !geoAssFields.isEmpty() );
-            if ( !hasFields && aMeshOrGroup->_is_equivalent( aMeshItem ))
-              aMeshItem->ExportToMEDX( aFilename.toUtf8().data(), toCreateGroups,
-                                       aFormat, toOverwrite && aMeshIndex == 0, toFindOutDim );
+            if ( !hasFields && aMeshOrGroup->_is_equivalent( aMeshItem ) && zTol < 0 )
+              aMeshItem->ExportMED( aFilename.toUtf8().data(), toCreateGroups, aFormat,
+                                    toOverwrite && aMeshIndex == 0, toFindOutDim );
             else
-              aMeshItem->ExportPartToMED( aMeshOrGroup, aFilename.toUtf8().data(), toCreateGroups,
-                                          aFormat, toOverwrite && aMeshIndex == 0, toFindOutDim,
-                                          fields, geoAssFields.toLatin1().data() );
+              aMeshItem->ExportPartToMED( aMeshOrGroup, aFilename.toUtf8().data(),
+                                          toCreateGroups, aFormat,
+                                          toOverwrite && aMeshIndex == 0, toFindOutDim,
+                                          fields, geoAssFields.toLatin1().data(), zTol );
           }
         }
         else if ( isSAUV )
@@ -942,7 +980,8 @@ namespace
             SMESH::SMESH_Mesh_var        aMeshItem = aMeshOrGroup->GetMesh();
             aMeshItem->ExportCGNS( aMeshOrGroup,
                                    aFilename.toUtf8().data(),
-                                   toOverwrite && aMeshIndex == 0 );
+                                   toOverwrite && aMeshIndex == 0,
+                                   toCreateGroups );
           }
         }
         else if ( isGMF )
@@ -955,7 +994,7 @@ namespace
         wc.suspend();
         SUIT_MessageBox::warning(SMESHGUI::desktop(),
                                  QObject::tr("SMESH_WRN_WARNING"),
-                                 QObject::tr("SMESH_EXPORT_FAILED"));
+                                 QObject::tr("SMESH_EXPORT_FAILED") + SalomeApp_Tools::ExceptionToString(S_ex));
         wc.resume();
       }
     }
@@ -1119,6 +1158,8 @@ namespace
       type = QObject::tr( "LENGTH_EDGES" );
     else if ( dynamic_cast< SMESH::Controls::Length2D* >( f.get() ) )
       type = QObject::tr( "LENGTH2D_EDGES" );
+    else if ( dynamic_cast< SMESH::Controls::Deflection2D* >( f.get() ) )
+      type = QObject::tr( "DEFLECTION2D_FACES" );
     else if ( dynamic_cast< SMESH::Controls::MultiConnection* >( f.get() ) )
       type = QObject::tr( "MULTI_BORDERS" );
     else if ( dynamic_cast< SMESH::Controls::MultiConnection2D* >( f.get() ) )
@@ -1330,7 +1371,7 @@ namespace
       if ( selected.Extent() )
       {
         Handle(SALOME_InteractiveObject) anIObject = selected.First();
-        _PTR(Study) aStudy = SMESH::GetActiveStudyDocument();
+        _PTR(Study) aStudy = SMESH::getStudy();
         _PTR(SObject) aSObj = aStudy->FindObjectID(anIObject->getEntry());
         if (aSObj) {
           if ( aStudy->GetUseCaseBuilder()->SortChildren( aSObj, true/*AscendingOrder*/ ) ) {
@@ -1341,7 +1382,7 @@ namespace
     }
   }
 
-  void SetDisplayMode(int theCommandID, SMESHGUI_StudyId2MarkerMap& theMarkerMap)
+  void SetDisplayMode(int theCommandID, VTK::MarkerMap& theMarkerMap)
   {
     SALOME_ListIO selected;
     SalomeApp_Application* app =
@@ -1363,8 +1404,6 @@ namespace
       return;
     }
 
-    _PTR(Study) aStudy = appStudy->studyDS();
-
     aSel->selectedObjects( selected );
 
     if ( selected.Extent() >= 1 )
@@ -1457,13 +1496,13 @@ namespace
             presentEntities = presentEntities | SMESH_Actor::e0DElements;
           if ( !(presentEntities & SMESH_Actor::eBallElem) && anActor->GetObject()->GetNbEntities( SMDSAbs_Ball ) )
             presentEntities = presentEntities | SMESH_Actor::eBallElem;
-          
+
           // as we know that all types of elements are present, we can exit the loop
           if ( presentEntities == SMESH_Actor::eAllEntity )
             break;
         }
 
-        SMESHGUI_PropertiesDlg dlg( theMarkerMap[ aStudy->StudyId() ], SMESHGUI::desktop() );
+        SMESHGUI_PropertiesDlg dlg( theMarkerMap, SMESHGUI::desktop() );
         // nodes: color, marker
         dlg.setNodeColor( nodeColor );
         if( markerType != VTK::MT_USER )
@@ -1495,7 +1534,7 @@ namespace
         dlg.setShrinkCoef( int( shrinkCoef * 100. ) );
         // hide unused controls
         dlg.showControls( presentEntities, hasNodes );
-        
+
         if ( dlg.exec() ) {
           nodeColor        = dlg.nodeColor();
           markerType       = dlg.nodeMarkerType();
@@ -1519,8 +1558,8 @@ namespace
           orientation3d    = dlg.orientation3d();
           shrinkCoef       = dlg.shrinkCoef() / 100.;
 
-          // store point markers map that might be changed by the user
-          theMarkerMap[ aStudy->StudyId() ] = dlg.customMarkers();
+          // store point markers that might be changed by the user
+          theMarkerMap = dlg.customMarkers();
 
           // set properties from dialog box to the presentations
           SALOME_ListIteratorOfListIO It( selected );
@@ -1529,16 +1568,15 @@ namespace
             if ( !IObject->hasEntry() ) continue;
             SMESH_Actor* anActor = SMESH::FindActorByEntry( IObject->getEntry() );
             if ( !anActor ) continue;
-            
+
             // nodes: color, marker
             anActor->SetNodeColor( nodeColor.redF(), nodeColor.greenF(), nodeColor.blueF() );
             if ( markerType != VTK::MT_USER ) {
               anActor->SetMarkerStd( markerType, markerScale );
             }
             else {
-              const VTK::MarkerMap& markerMap = theMarkerMap[ aStudy->StudyId() ];
-              VTK::MarkerMap::const_iterator iter = markerMap.find( markerId );
-              if ( iter != markerMap.end() )
+              VTK::MarkerMap::const_iterator iter = theMarkerMap.find( markerId );
+              if ( iter != theMarkerMap.end() )
                 anActor->SetMarkerTexture( markerId, iter->second.second );
             }
             // volumes: normal color, reversed color (delta)
@@ -1575,17 +1613,17 @@ namespace
                 aColor = nodeColor; break;
               case SMESH::EDGE:
                 aColor = edgeColor; break;
-              case SMESH::FACE: 
+              case SMESH::FACE:
                 aColor = faceColor; break;
               case SMESH::VOLUME:
                 aColor = volumeColor; break;
-              case SMESH::ELEM0D: 
+              case SMESH::ELEM0D:
                 aColor = elem0dColor; break;
-              case SMESH::BALL: 
+              case SMESH::BALL:
                 aColor = ballColor; break;
               default: break;
               }
-              
+
               if ( aColor.isValid() ) {
                 SALOMEDS::Color aGroupColor;
                 aGroupColor.R = aColor.redF();
@@ -1654,6 +1692,7 @@ namespace
     ActionControl.Bind( SMESHOp::OpBareBorderFace,        SMESH_Actor::eBareBorderFace );
     ActionControl.Bind( SMESHOp::OpOverConstrainedFace,   SMESH_Actor::eOverConstrainedFace );
     ActionControl.Bind( SMESHOp::OpLength2D,              SMESH_Actor::eLength2D );
+    ActionControl.Bind( SMESHOp::OpDeflection2D,          SMESH_Actor::eDeflection2D );
     ActionControl.Bind( SMESHOp::OpConnection2D,          SMESH_Actor::eMultiConnection2D );
     ActionControl.Bind( SMESHOp::OpArea,                  SMESH_Actor::eArea );
     ActionControl.Bind( SMESHOp::OpTaper,                 SMESH_Actor::eTaper );
@@ -1670,13 +1709,15 @@ namespace
     ActionControl.Bind( SMESHOp::OpOverConstrainedVolume, SMESH_Actor::eOverConstrainedVolume );
     ActionControl.Bind( SMESHOp::OpEqualVolume,           SMESH_Actor::eCoincidentElems3D );
 
-    return theReversed ? ActionControl.Find2( theID ) : ActionControl.Find1( theID );
+    if ( theReversed )
+      return ActionControl.IsBound2( theID ) ? ActionControl.Find2( theID ) : 0;
+    return   ActionControl.IsBound1( theID ) ? ActionControl.Find1( theID ) : 0;
   }
 
   void Control( int theCommandID )
   {
     SMESH_Actor::eControl aControl = SMESH_Actor::eControl( ActionToControl( theCommandID ));
-    _PTR(Study) aStudy = SMESH::GetActiveStudyDocument();
+    _PTR(Study) aStudy = SMESH::getStudy();
 
     SALOME_ListIO selected;
     if ( LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr() )
@@ -1695,7 +1736,7 @@ namespace
             if ( !anIDSrc->_is_nil() ) {
               SMESH_Actor *anActor = SMESH::FindActorByEntry( anIO->getEntry());
               if (( !anActor && selected.Extent() == 1 ) &&
-                  ( anActor = SMESH::CreateActor( aStudy, anIO->getEntry() )))
+                  ( anActor = SMESH::CreateActor( anIO->getEntry() )))
               {
                 anActor->SetControlMode( aControl );
                 SMESH::DisplayActor( SMESH::GetCurrentVtkView(), anActor );
@@ -1752,7 +1793,7 @@ namespace
 
   QString CheckTypeObject(const Handle(SALOME_InteractiveObject) & theIO)
   {
-    _PTR(Study)  aStudy = SMESH::GetActiveStudyDocument();
+    _PTR(Study)  aStudy = SMESH::getStudy();
     _PTR(SObject) aSObj = aStudy->FindObjectID(theIO->getEntry());
     if (aSObj) {
       _PTR(SComponent) aSComp = aSObj->GetFatherComponent();
@@ -1807,7 +1848,7 @@ namespace
     v = qMax( uint(0), qMin ( v, size-1 ) );
     return v;
   }
-  
+
 } //namespace
 
 void SMESHGUI::OnEditDelete()
@@ -1816,39 +1857,48 @@ void SMESHGUI::OnEditDelete()
   LightApp_SelectionMgr* aSel = SMESHGUI::selectionMgr();
   SALOME_ListIO selected; aSel->selectedObjects( selected, QString::null, false );
 
-  _PTR(Study) aStudy = SMESH::GetActiveStudyDocument();
+  _PTR(Study) aStudy = SMESH::getStudy();
   _PTR(StudyBuilder) aStudyBuilder = aStudy->NewBuilder();
   _PTR(GenericAttribute) anAttr;
   _PTR(AttributeIOR) anIOR;
 
+  const int objectCountLimit = 30; // PAL23599
   int objectCount = 0;
   QString aNameList;
   QString aParentComponent = QString::null;
-  Handle(SALOME_InteractiveObject) anIO;
+  
   for( SALOME_ListIteratorOfListIO anIt( selected ); anIt.More(); anIt.Next() )
   {
-    anIO = anIt.Value();
-    QString cur = anIO->getComponentDataType();
-    _PTR(SObject) aSO = aStudy->FindObjectID(anIO->getEntry());
+    Handle(SALOME_InteractiveObject) anIO = anIt.Value();
+    if ( anIO.IsNull() ) continue;
+    
+    QString father = "unknown", name;
+
+    _PTR(SObject) aSO = aStudy->FindObjectID( anIO->getEntry() );
     if (aSO) {
+      father = QString::fromStdString( aSO->GetFatherComponent()->ComponentDataType() );
       // check if object is reference
       _PTR(SObject) aRefSObj;
-      aNameList.append("\n    - ");
       if ( aSO->ReferencedObject( aRefSObj ) ) {
-        QString aRefName = QString::fromStdString ( aRefSObj->GetName() );
-        aNameList.append( aRefName );
-        cur = QString::fromStdString ( aRefSObj->GetFatherComponent()->ComponentDataType() );
+        name = QString::fromStdString ( aRefSObj->GetName() );
+        father = QString::fromStdString ( aRefSObj->GetFatherComponent()->ComponentDataType() );
       }
       else
-        aNameList.append(anIO->getName());
+        name = anIO->getName();
       objectCount++;
     }
+    if ( objectCount < objectCountLimit ) { // avoid occupying the whole screen
+      aNameList.append("\n    - ");
+      aNameList.append( name );
+    }
 
     if( aParentComponent.isNull() )
-      aParentComponent = cur;
-    else if( !aParentComponent.isEmpty() && aParentComponent!=cur )
+      aParentComponent = father;
+    else if( !aParentComponent.isEmpty() && aParentComponent!=father )
       aParentComponent = "";
   }
+  if ( objectCount >= objectCountLimit )
+    aNameList.append("\n    - ...");
 
   if ( objectCount == 0 )
     return; // No Valid Objects Selected
@@ -1870,8 +1920,8 @@ void SMESHGUI::OnEditDelete()
 
   SalomeApp_Application* anApp = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
 
-  // Put the whole hierarchy of sub-objects of the selected SO's into a list and
-  // then treat them all starting from the deepest objects (at list back)
+  // Put one level of sub-objects of the selected SO's into a list
+  // in order to get objects inside folders like "Assigned Algorithms"
   std::list< _PTR(SObject) > listSO;
   SALOME_ListIteratorOfListIO It(selected);
   for( ; It.More(); It.Next()) // loop on selected IO's
@@ -1892,43 +1942,47 @@ void SMESHGUI::OnEditDelete()
         aSO = aRefSObject; // Delete main Object instead of reference
 
       listSO.push_back( aSO );
-      std::list< _PTR(SObject) >::iterator itSO = --listSO.end();
-      for ( ; itSO != listSO.end(); ++itSO ) {
-        _PTR(ChildIterator) it = aStudy->NewChildIterator( *itSO );
-        for (it->InitEx(false); it->More(); it->Next())
-          listSO.push_back( it->Value() );
-      }
+
+      _PTR(ChildIterator) it = aStudy->NewChildIterator( aSO );
+      for (it->InitEx(false); it->More(); it->Next())
+        listSO.push_back( it->Value() );
     }
   }
   // Check if none of objects to delete is referred from outside
   std::list< _PTR(SObject) >::reverse_iterator ritSO;
+  std::vector< _PTR(SObject) > subSO;
   for ( ritSO = listSO.rbegin(); ritSO != listSO.rend(); ++ritSO )
   {
     _PTR(SObject) SO = *ritSO;
     if ( !SO ) continue;
-    std::vector<_PTR(SObject)> aReferences = aStudy->FindDependances( *ritSO  );
-    for (size_t i = 0; i < aReferences.size(); i++) {
-      _PTR(SComponent) aComponent = aReferences[i]->GetFatherComponent();
-      std::string type = aComponent->ComponentDataType();
-      if ( type != "SMESH" )
-      {
-        SUIT_MessageBox::warning( anApp->desktop(),
-                                  QObject::tr("WRN_WARNING"),
-                                  QObject::tr("DEP_OBJECT") );
-        return; // outside SMESH, there is an object depending on a SMESH object
+
+    int nbChildren = SO->GetLastChildTag();
+    subSO.clear();
+    subSO.reserve( 1 + nbChildren );
+    subSO.push_back( SO );
+    if ( nbChildren > 0 )
+    {
+      _PTR(ChildIterator) it = aStudy->NewChildIterator( SO );
+      for ( it->InitEx( true ); it->More(); it->Next() )
+        subSO.push_back( it->Value() );
+    }
+    for ( size_t i = 0; i < subSO.size(); ++i )
+    {
+      std::vector<_PTR(SObject)> aReferences = aStudy->FindDependances( subSO[i] );
+      for ( size_t j = 0; j < aReferences.size(); j++ ) {
+        _PTR(SComponent) aComponent = aReferences[j]->GetFatherComponent();
+        std::string type = aComponent->ComponentDataType();
+        if ( type != "SMESH" )
+        {
+          SUIT_MessageBox::warning( anApp->desktop(),
+                                    QObject::tr("WRN_WARNING"),
+                                    QObject::tr("DEP_OBJECT") );
+          return; // outside SMESH, there is an object depending on a SMESH object
+        }
       }
     }
   }
 
-  // Call mesh->Clear() to prevent loading mesh from file caused by hypotheses removal
-  for( It.Initialize( selected ); It.More(); It.Next()) // loop on selected IO's
-  {
-    Handle(SALOME_InteractiveObject) IObject = It.Value();
-    SMESH::SMESH_Mesh_var mesh = SMESH::IObjectToInterface< SMESH::SMESH_Mesh >( IObject );
-    if ( !mesh->_is_nil() )
-      mesh->Clear();
-  }
-
   // Treat SO's in the list starting from the back
   aStudyBuilder->NewCommand();  // There is a transaction
   for ( ritSO = listSO.rbegin(); ritSO != listSO.rend(); ++ritSO )
@@ -1938,7 +1992,7 @@ void SMESHGUI::OnEditDelete()
     std::string anEntry = SO->GetID();
 
     /** Erase graphical object and remove all its data **/
-    if(SO->FindAttribute(anAttr, "AttributeIOR")) {
+    if ( SO->FindAttribute( anAttr, "AttributeIOR" )) {
       SMESH::RemoveVisualObjectWithActors( anEntry.c_str(), true);
     }
     /** Remove an object from data structures **/
@@ -1951,10 +2005,6 @@ void SMESHGUI::OnEditDelete()
     else if ( !aSubMesh->_is_nil() ) {                   // DELETE SUBMESH
       SMESH::SMESH_Mesh_var aMesh = aSubMesh->GetFather();
       aMesh->RemoveSubMesh( aSubMesh );
-
-      _PTR(SObject) aMeshSO = SMESH::FindSObject(aMesh);
-      if (aMeshSO)
-        SMESH::ModifiedMesh(aMeshSO, false, aMesh->NbNodes()==0);
     }
     else {
       Handle(SALOME_InteractiveObject) IObject = new SALOME_InteractiveObject
@@ -2101,20 +2151,20 @@ bool SMESHGUI::automaticUpdate( SMESH::SMESH_IDSource_ptr theMesh,
   SMESH::long_array_var info = theMesh->GetMeshInfo();
   long nbOdElems = info[SMDSEntity_0D];
   long nbEdges   = info[SMDSEntity_Edge] + info[SMDSEntity_Quad_Edge];
-  long nbFaces   = info[SMDSEntity_Triangle]   + info[SMDSEntity_Quad_Triangle]   + info[SMDSEntity_BiQuad_Triangle] + 
-                   info[SMDSEntity_Quadrangle] + info[SMDSEntity_Quad_Quadrangle] + info[SMDSEntity_BiQuad_Quadrangle] + 
+  long nbFaces   = info[SMDSEntity_Triangle]   + info[SMDSEntity_Quad_Triangle]   + info[SMDSEntity_BiQuad_Triangle] +
+                   info[SMDSEntity_Quadrangle] + info[SMDSEntity_Quad_Quadrangle] + info[SMDSEntity_BiQuad_Quadrangle] +
                    info[SMDSEntity_Polygon] + info[SMDSEntity_Quad_Polygon];
-  long nbVolumes = info[SMDSEntity_Tetra]   + info[SMDSEntity_Quad_Tetra] + 
-                   info[SMDSEntity_Hexa]    + info[SMDSEntity_Quad_Hexa] + info[SMDSEntity_TriQuad_Hexa] + 
-                   info[SMDSEntity_Pyramid] + info[SMDSEntity_Quad_Pyramid] + 
-                   info[SMDSEntity_Penta]   + info[SMDSEntity_Quad_Penta] + 
-                   info[SMDSEntity_Polyhedra] + 
+  long nbVolumes = info[SMDSEntity_Tetra]   + info[SMDSEntity_Quad_Tetra] +
+                   info[SMDSEntity_Hexa]    + info[SMDSEntity_Quad_Hexa] + info[SMDSEntity_TriQuad_Hexa] +
+                   info[SMDSEntity_Pyramid] + info[SMDSEntity_Quad_Pyramid] +
+                   info[SMDSEntity_Penta]   + info[SMDSEntity_Quad_Penta] + info[SMDSEntity_BiQuad_Penta] +
+                   info[SMDSEntity_Polyhedra] +
                    info[SMDSEntity_Hexagonal_Prism];
   long nbBalls   = info[SMDSEntity_Ball];
 
   long requestedSize = nbOdElems + nbBalls + nbEdges + nbFaces + nbVolumes;
   *nbElements = requestedSize;
-  
+
   *entities = SMESH_Actor::eAllEntity;
   *hidden   = 0;
 
@@ -2204,17 +2254,6 @@ SMESHGUI* SMESHGUI::GetSMESHGUI()
     smeshMod = dynamic_cast<SMESHGUI*>( module );
   }
 
-  if ( smeshMod && smeshMod->application() && smeshMod->application()->activeStudy() )
-  {
-    SalomeApp_Study* study = dynamic_cast<SalomeApp_Study*>( smeshMod->application()->activeStudy() );
-    if ( study )
-    {
-      _PTR(Study) aStudy = study->studyDS();
-      if ( aStudy )
-        GetSMESHGen()->SetCurrentStudy( _CAST(Study,aStudy)->GetStudy() );
-    }
-  }
-
   return smeshMod;
 }
 
@@ -2387,36 +2426,27 @@ bool SMESHGUI::DefineDlgPosition(QWidget * aDlg, int &x, int &y)
   return true;
 }
 
-//=============================================================================
 /*!
- *
- */
-//=============================================================================
-static int isStudyLocked(_PTR(Study) theStudy){
-  return theStudy->GetProperties()->IsLocked();
-}
-
-static bool checkLock(_PTR(Study) theStudy) {
-  if (isStudyLocked(theStudy)) {
-    SUIT_MessageBox::warning( SMESHGUI::desktop(),
-                              QObject::tr("WRN_WARNING"),
-                              QObject::tr("WRN_STUDY_LOCKED") );
+ * \brief Verifies whether study of operation is locked
+  * \param theMess - specifies whether message box must be shown if study is locked
+  * \return State of study.
+*
+* Verifies whether study of operation is locked. If second parameter is TRUE and study
+* is locked when corresponding message box appears
+*/
+bool SMESHGUI::isStudyLocked( bool theMessage )
+{
+  if ( SMESH::getStudy()->GetProperties()->IsLocked() )
+  {
+    if ( theMessage )
+      SUIT_MessageBox::warning( SMESHGUI::desktop(),
+                                QObject::tr( "WRN_WARNING" ),
+                                QObject::tr( "WRN_STUDY_LOCKED" ) );
     return true;
   }
   return false;
 }
 
-//=======================================================================
-//function : CheckActiveStudyLocked
-//purpose  :
-//=======================================================================
-
-bool SMESHGUI::isActiveStudyLocked()
-{
-  _PTR(Study) aStudy = activeStudy()->studyDS();
-  return checkLock( aStudy );
-}
-
 //=============================================================================
 /*!
  *
@@ -2428,15 +2458,10 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   if( !anApp )
     return false;
 
-  _PTR(Study) aStudy = SMESH::GetActiveStudyDocument(); //Document OCAF de l'etude active
   SUIT_ResourceMgr* mgr = resourceMgr();
   if( !mgr )
     return false;
 
-  if (CORBA::is_nil(GetSMESHGen()->GetCurrentStudy())) {
-    GetSMESHGen()->SetCurrentStudy(_CAST(Study,aStudy)->GetStudy());
-  }
-
   SUIT_ViewWindow* view = application()->desktop()->activeWindow();
   SVTK_ViewWindow* vtkwnd = dynamic_cast<SVTK_ViewWindow*>( view );
 
@@ -2444,20 +2469,25 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
   switch (theCommandID) {
   case SMESHOp::OpDelete:
-    if(checkLock(aStudy)) break;
+    if(isStudyLocked()) break;
     OnEditDelete();
     break;
   case SMESHOp::OpImportDAT:
   case SMESHOp::OpImportUNV:
   case SMESHOp::OpImportMED:
   case SMESHOp::OpImportSTL:
-#ifdef WITH_CGNS
   case SMESHOp::OpImportCGNS:
-#endif
   case SMESHOp::OpImportSAUV:
   case SMESHOp::OpImportGMF:
+  case SMESHOp::OpPopupImportDAT:
+  case SMESHOp::OpPopupImportUNV:
+  case SMESHOp::OpPopupImportMED:
+  case SMESHOp::OpPopupImportSTL:
+  case SMESHOp::OpPopupImportCGNS:
+  case SMESHOp::OpPopupImportSAUV:
+  case SMESHOp::OpPopupImportGMF:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       ::ImportMeshesFromFile(GetSMESHGen(),theCommandID);
       break;
     }
@@ -2484,18 +2514,14 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   case SMESHOp::OpExportMED:
   case SMESHOp::OpExportUNV:
   case SMESHOp::OpExportSTL:
-#ifdef WITH_CGNS
   case SMESHOp::OpExportCGNS:
-#endif
   case SMESHOp::OpExportSAUV:
   case SMESHOp::OpExportGMF:
   case SMESHOp::OpPopupExportDAT:
   case SMESHOp::OpPopupExportMED:
   case SMESHOp::OpPopupExportUNV:
   case SMESHOp::OpPopupExportSTL:
-#ifdef WITH_CGNS
   case SMESHOp::OpPopupExportCGNS:
-#endif
   case SMESHOp::OpPopupExportSAUV:
   case SMESHOp::OpPopupExportGMF:
     {
@@ -2519,6 +2545,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 #ifndef DISABLE_PLOT2DVIEWER
             SMESH::ProcessIn2DViewers(anActor,SMESH::RemoveFrom2dViewer);
 #endif
+            anActor->UpdateFilter();
           }
         }
       }
@@ -2623,12 +2650,10 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
   case SMESHOp::OpUpdate:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       SUIT_OverrideCursor wc;
       try {
-#if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
         OCC_CATCH_SIGNALS;
-#endif
         SMESH::UpdateView();
       }
       catch (std::bad_alloc) { // PAL16774 (Crash after display of many groups)
@@ -2671,9 +2696,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
       extractContainers( sel_objects, to_process );
 
       try {
-#if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
         OCC_CATCH_SIGNALS;
-#endif
         if (vtkwnd) {
           SALOME_ListIteratorOfListIO It( to_process );
           for ( ; It.More(); It.Next())
@@ -2692,7 +2715,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         }
 
         // PAL13338 + PAL15161 -->
-        if ( ( theCommandID==SMESHOp::OpShow || theCommandID==SMESHOp::OpShowOnly ) && !checkLock(aStudy)) {
+        if ( ( theCommandID==SMESHOp::OpShow || theCommandID==SMESHOp::OpShowOnly ) && !isStudyLocked()) {
           SMESH::UpdateView();
           SMESHGUI::GetSMESHGUI()->EmitSignalVisibilityChanged();
         }
@@ -2709,12 +2732,16 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
       else
         aSel->setSelectedObjects( to_process );
 
+      if ( vtkwnd && vtkwnd->GetRenderer() && !isStudyLocked() &&
+           ( theCommandID==SMESHOp::OpShow || theCommandID==SMESHOp::OpShowOnly ) )
+        vtkwnd->GetRenderer()->AdjustActors();
+
       break;
     }
 
   case SMESHOp::OpNode:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
 
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
@@ -2741,14 +2768,14 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     break;
   case SMESHOp::OpCopyMesh:
     {
-      if (checkLock(aStudy)) break;
+      if (isStudyLocked()) break;
       EmitSignalDeactivateDialog();
       ( new SMESHGUI_CopyMeshDlg( this ) )->show();
     }
     break;
   case SMESHOp::OpBuildCompoundMesh:
     {
-      if (checkLock(aStudy)) break;
+      if (isStudyLocked()) break;
       EmitSignalDeactivateDialog();
       ( new SMESHGUI_BuildCompoundDlg( this ) )->show();
     }
@@ -2763,7 +2790,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if ( checkLock( aStudy ) )
+      if ( isStudyLocked() )
         break;
 
       /*Standard_Boolean aRes;
@@ -2793,7 +2820,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if ( checkLock( aStudy ) )
+      if ( isStudyLocked() )
         break;
 
       EmitSignalDeactivateDialog();
@@ -2812,7 +2839,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpSmoothing:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_SmoothingDlg( this ) )->show();
@@ -2824,7 +2851,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpExtrusion:
     {
-      if (checkLock(aStudy)) break;
+      if (isStudyLocked()) break;
       if (vtkwnd) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_ExtrusionDlg ( this ) )->show();
@@ -2835,7 +2862,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpExtrusionAlongAPath:
     {
-      if (checkLock(aStudy)) break;
+      if (isStudyLocked()) break;
       if (vtkwnd) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_ExtrusionAlongPathDlg( this ) )->show();
@@ -2846,7 +2873,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpRevolution:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_RevolutionDlg( this ) )->show();
@@ -2858,7 +2885,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpPatternMapping:
     {
-      if ( checkLock( aStudy ) )
+      if ( isStudyLocked() )
         break;
       if ( vtkwnd )
       {
@@ -2887,7 +2914,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       EmitSignalDeactivateDialog();
       SMESH::SMESH_Mesh_var aMesh = SMESH::SMESH_Mesh::_nil();
 
@@ -2914,7 +2941,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       EmitSignalDeactivateDialog();
 
       LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr();
@@ -2927,7 +2954,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         // check if submesh is selected
         Handle(SALOME_InteractiveObject) IObject = selected.First();
         if (IObject->hasEntry()) {
-          _PTR(SObject) aSObj = aStudy->FindObjectID(IObject->getEntry());
+          _PTR(SObject) aSObj = SMESH::getStudy()->FindObjectID(IObject->getEntry());
           if( aSObj ) {
             SMESH::SMESH_subMesh_var aSubMesh = SMESH::SMESH_subMesh::_narrow( SMESH::SObjectToObject( aSObj ) );
             if (!aSubMesh->_is_nil()) {
@@ -2991,7 +3018,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       EmitSignalDeactivateDialog();
 
       LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr();
@@ -3021,7 +3048,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
   case SMESHOp::OpAddElemGroupPopup:     // Add elements to group
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if (myState == 800) {
         SMESHGUI_GroupDlg *aDlg = (SMESHGUI_GroupDlg*) myActiveDialogBox;
         if (aDlg) aDlg->onAdd();
@@ -3031,7 +3058,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
   case SMESHOp::OpRemoveElemGroupPopup:  // Remove elements from group
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if (myState == 800) {
         SMESHGUI_GroupDlg *aDlg = (SMESHGUI_GroupDlg*) myActiveDialogBox;
         if (aDlg) aDlg->onRemove();
@@ -3047,7 +3074,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       EmitSignalDeactivateDialog();
 
       LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr();
@@ -3087,7 +3114,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if ( checkLock( aStudy ) )
+      if ( isStudyLocked() )
         break;
 
       EmitSignalDeactivateDialog();
@@ -3107,7 +3134,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
     case SMESHOp::OpGroupUnderlyingElem: // Create groups of entities from existing groups of superior dimensions
     {
-      if ( checkLock( aStudy ) )
+      if ( isStudyLocked() )
         break;
 
       EmitSignalDeactivateDialog();
@@ -3117,6 +3144,18 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
       break;
     }
 
+    case SMESHOp::OpFaceGroupsByEdges: // Create face groups separated by sharp edges
+    {
+      if ( isStudyLocked() )
+        break;
+
+      EmitSignalDeactivateDialog();
+      SMESHGUI_FaceGroupsSeparatedByEdgesDlg* aDlg = new SMESHGUI_FaceGroupsSeparatedByEdgesDlg( this );
+      aDlg->show();
+
+      break;
+    }
+
     case SMESHOp::OpDeleteGroup: // Delete groups with their contents
     {
       if ( !vtkwnd )
@@ -3125,7 +3164,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         break;
       }
 
-      if ( checkLock( aStudy ) )
+      if ( isStudyLocked() )
         break;
 
       EmitSignalDeactivateDialog();
@@ -3148,7 +3187,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         SALOME_ListIteratorOfListIO It( selected );
         for ( ; It.More(); It.Next() ) {
           SMESHGUI_MeshInfoDlg* dlg = new SMESHGUI_MeshInfoDlg( SMESHGUI::desktop(), page );
-          dlg->showInfo( It.Value() ); 
+          dlg->showInfo( It.Value() );
           dlg->show();
         }
       }
@@ -3167,7 +3206,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
   case SMESHOp::OpEditHypothesis:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
 
       LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr();
       SALOME_ListIO selected;
@@ -3212,7 +3251,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpUnassign:                      // REMOVE HYPOTHESIS / ALGORITHMS
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       SUIT_OverrideCursor wc;
 
       LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr();
@@ -3243,7 +3282,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   case SMESHOp::OpPyramid:
   case SMESHOp::OpHexagonalPrism:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         SMDSAbs_EntityType type = SMDSEntity_Edge;
@@ -3269,7 +3308,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpPolyhedron:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_CreatePolyhedralVolumeDlg( this ) )->show();
@@ -3288,10 +3327,11 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   case SMESHOp::OpQuadraticTetrahedron:
   case SMESHOp::OpQuadraticPyramid:
   case SMESHOp::OpQuadraticPentahedron:
+  case SMESHOp::OpBiQuadraticPentahedron:
   case SMESHOp::OpQuadraticHexahedron:
   case SMESHOp::OpTriQuadraticHexahedron:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         SMDSAbs_EntityType type = SMDSEntity_Last;
@@ -3306,6 +3346,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         case SMESHOp::OpQuadraticTetrahedron:   type = SMDSEntity_Quad_Tetra; break;
         case SMESHOp::OpQuadraticPyramid:       type = SMDSEntity_Quad_Pyramid; break;
         case SMESHOp::OpQuadraticPentahedron:   type = SMDSEntity_Quad_Penta; break;
+        case SMESHOp::OpBiQuadraticPentahedron: type = SMDSEntity_BiQuad_Penta; break;
         case SMESHOp::OpQuadraticHexahedron:    type = SMDSEntity_Quad_Hexa; break;
         case SMESHOp::OpTriQuadraticHexahedron: type = SMDSEntity_TriQuad_Hexa; break;
         default: break;
@@ -3321,7 +3362,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpRemoveNodes:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_RemoveNodesDlg( this ) )->show();
@@ -3334,7 +3375,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpRemoveElements:                                    // REMOVES ELEMENTS
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_RemoveElementsDlg( this ) )->show();
@@ -3348,7 +3389,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpClearMesh: {
 
-    if(checkLock(aStudy)) break;
+    if(isStudyLocked()) break;
 
     SALOME_ListIO selected;
     if( LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr() )
@@ -3366,10 +3407,9 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         if ( aMesh->NbNodes() == 0 ) // imported mesh is not empty
           SMESH::RemoveVisualObjectWithActors(IOS->getEntry(), true);
         _PTR(SObject) aMeshSObj = SMESH::FindSObject(aMesh);
-        SMESH::ModifiedMesh( aMeshSObj, false, true);
         // hide groups and submeshes
         _PTR(ChildIterator) anIter =
-          SMESH::GetActiveStudyDocument()->NewChildIterator( aMeshSObj );
+          SMESH::getStudy()->NewChildIterator( aMeshSObj );
         for ( anIter->InitEx(true); anIter->More(); anIter->Next() )
         {
           _PTR(SObject) so = anIter->Value();
@@ -3388,7 +3428,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   }
   case SMESHOp::OpRemoveOrphanNodes:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       SALOME_ListIO selected;
       if( LightApp_SelectionMgr *aSel = SMESHGUI::selectionMgr() )
         aSel->selectedObjects( selected );
@@ -3427,7 +3467,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpRenumberingNodes:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_RenumberingDlg( this, 0 ) )->show();
@@ -3441,7 +3481,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpRenumberingElements:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_RenumberingDlg( this, 1 ) )->show();
@@ -3455,7 +3495,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpTranslation:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_TranslationDlg( this ) )->show();
@@ -3468,7 +3508,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpRotation:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_RotationDlg( this ) )->show();
@@ -3481,7 +3521,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpSymmetry:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if(vtkwnd) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_SymmetryDlg( this ) )->show();
@@ -3494,7 +3534,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpScale:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_ScaleDlg( this ) )->show();
@@ -3506,9 +3546,23 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
       break;
     }
 
+  case SMESHOp::OpOffset:
+    {
+      if(isStudyLocked()) break;
+      if ( vtkwnd ) {
+        EmitSignalDeactivateDialog();
+        ( new SMESHGUI_OffsetDlg( this ) )->show();
+      }
+      else {
+        SUIT_MessageBox::warning(SMESHGUI::desktop(),
+                                 tr("SMESH_WRN_WARNING"), tr("SMESH_WRN_VIEWER_VTK"));
+      }
+      break;
+    }
+
   case SMESHOp::OpSewing:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if(vtkwnd) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_SewingDlg( this ) )->show();
@@ -3521,7 +3575,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpMergeNodes:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if(vtkwnd) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_MergeDlg( this, 0 ) )->show();
@@ -3534,7 +3588,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
     }
   case SMESHOp::OpMergeElements:
     {
-      if (checkLock(aStudy)) break;
+      if (isStudyLocked()) break;
       if (vtkwnd) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_MergeDlg( this, 1 ) )->show();
@@ -3551,7 +3605,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
 
   case SMESHOp::OpDuplicateNodes:
     {
-      if(checkLock(aStudy)) break;
+      if(isStudyLocked()) break;
       if ( vtkwnd ) {
         EmitSignalDeactivateDialog();
         ( new SMESHGUI_DuplicateNodesDlg( this ) )->show();
@@ -3597,6 +3651,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   case SMESHOp::OpBareBorderFace:
   case SMESHOp::OpOverConstrainedFace:
   case SMESHOp::OpLength2D:
+  case SMESHOp::OpDeflection2D:
   case SMESHOp::OpConnection2D:
   case SMESHOp::OpArea:
   case SMESHOp::OpTaper:
@@ -3674,6 +3729,7 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
   case SMESHOp::OpPropertiesVolume:
   case SMESHOp::OpMinimumDistance:
   case SMESHOp::OpBoundingBox:
+  case SMESHOp::OpAngle:
     {
       int page = SMESHGUI_MeasureDlg::MinDistance;
       if ( theCommandID == SMESHOp::OpBoundingBox )
@@ -3684,6 +3740,8 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
         page = SMESHGUI_MeasureDlg::Area;
       else if ( theCommandID == SMESHOp::OpPropertiesVolume )
         page = SMESHGUI_MeasureDlg::Volume;
+      else if ( theCommandID == SMESHOp::OpAngle )
+        page = SMESHGUI_MeasureDlg::Angle;
 
       EmitSignalDeactivateDialog();
       SMESHGUI_MeasureDlg* dlg = new SMESHGUI_MeasureDlg( SMESHGUI::desktop(), page );
@@ -3785,7 +3843,7 @@ void SMESHGUI::createPopupItem( const int id,
     popupMgr()->insert( action( id ), pId, 0 );
 
   QString lc = "$";        // VSR : instead of QtxPopupSelection::defEquality();
-  QString dc = "selcount"; // VSR : insetad of QtxPopupSelection::defSelCountParam()
+  QString dc = "selcount"; // VSR : instead of QtxPopupSelection::defSelCountParam()
   QString rule = "(%1) and (%2) and (%3)";
   rule = rule.arg( QString( "%1>0" ).arg( dc ) );
   if( clients.isEmpty() )
@@ -3821,13 +3879,21 @@ void SMESHGUI::initialize( CAM_Application* app )
   //createSMESHAction(  SMESHOp::OpImportDAT, "IMPORT_DAT", "", (Qt::CTRL+Qt::Key_B) );
   createSMESHAction( SMESHOp::OpImportUNV, "IMPORT_UNV", "", (Qt::CTRL+Qt::Key_I) );
   createSMESHAction( SMESHOp::OpImportMED, "IMPORT_MED", "", (Qt::CTRL+Qt::Key_M) );
-  //createSMESHAction(  114, "NUM" );
   createSMESHAction( SMESHOp::OpImportSTL, "IMPORT_STL"  );
 #ifdef WITH_CGNS
   createSMESHAction( SMESHOp::OpImportCGNS, "IMPORT_CGNS" );
 #endif
   createSMESHAction( SMESHOp::OpImportSAUV, "IMPORT_SAUV" );
   createSMESHAction( SMESHOp::OpImportGMF,  "IMPORT_GMF"  );
+  createSMESHAction( SMESHOp::OpPopupImportUNV, "IMPORT_UNV");
+  createSMESHAction( SMESHOp::OpPopupImportMED, "IMPORT_MED");
+  createSMESHAction( SMESHOp::OpPopupImportSTL, "IMPORT_STL"  );
+#ifdef WITH_CGNS
+  createSMESHAction( SMESHOp::OpPopupImportCGNS, "IMPORT_CGNS" );
+#endif
+  createSMESHAction( SMESHOp::OpPopupImportSAUV, "IMPORT_SAUV" );
+  createSMESHAction( SMESHOp::OpPopupImportGMF,  "IMPORT_GMF"  );
+
   createSMESHAction( SMESHOp::OpExportDAT,  "DAT" );
   createSMESHAction( SMESHOp::OpExportMED,  "MED" );
   createSMESHAction( SMESHOp::OpExportUNV,  "UNV" );
@@ -3870,6 +3936,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createSMESHAction( SMESHOp::OpIntersectGroups,      "INT_GROUP",               "ICON_INTERSECT" );
   createSMESHAction( SMESHOp::OpCutGroups,            "CUT_GROUP",               "ICON_CUT" );
   createSMESHAction( SMESHOp::OpGroupUnderlyingElem,  "UNDERLYING_ELEMS",        "ICON_UNDERLYING_ELEMS" );
+  createSMESHAction( SMESHOp::OpFaceGroupsByEdges,    "FACE_GROUPS_BY_EDGES",    "ICON_FACE_GROUPS_BY_EDGES" );
   createSMESHAction( SMESHOp::OpAddElemGroupPopup,    "ADD_TO_GROUP" );
   createSMESHAction( SMESHOp::OpRemoveElemGroupPopup, "REMOVE_FROM_GROUP" );
   createSMESHAction( SMESHOp::OpDeleteGroup,          "DEL_GROUP",               "ICON_DEL_GROUP" );
@@ -3890,6 +3957,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createSMESHAction( SMESHOp::OpBareBorderFace,        "BARE_BORDER_FACE",        "ICON_BARE_BORDER_FACE",        0, true );
   createSMESHAction( SMESHOp::OpOverConstrainedFace,   "OVER_CONSTRAINED_FACE",   "ICON_OVER_CONSTRAINED_FACE",   0, true );
   createSMESHAction( SMESHOp::OpLength2D,              "LENGTH_2D",               "ICON_LENGTH_2D",     0, true );
+  createSMESHAction( SMESHOp::OpDeflection2D,          "DEFLECTION_2D",           "ICON_DEFLECTION_2D", 0, true );
   createSMESHAction( SMESHOp::OpConnection2D,          "CONNECTION_2D",           "ICON_CONNECTION_2D", 0, true );
   createSMESHAction( SMESHOp::OpArea,                  "AREA",                    "ICON_AREA",          0, true );
   createSMESHAction( SMESHOp::OpTaper,                 "TAPER",                   "ICON_TAPER",         0, true );
@@ -3930,6 +3998,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createSMESHAction( SMESHOp::OpQuadraticTetrahedron,   "QUADRATIC_TETRAHEDRON",   "ICON_DLG_QUADRATIC_TETRAHEDRON" );
   createSMESHAction( SMESHOp::OpQuadraticPyramid,       "QUADRATIC_PYRAMID",       "ICON_DLG_QUADRATIC_PYRAMID" );
   createSMESHAction( SMESHOp::OpQuadraticPentahedron,   "QUADRATIC_PENTAHEDRON",   "ICON_DLG_QUADRATIC_PENTAHEDRON" );
+  createSMESHAction( SMESHOp::OpBiQuadraticPentahedron, "BIQUADRATIC_PENTAHEDRON", "ICON_DLG_BIQUADRATIC_PENTAHEDRON" );
   createSMESHAction( SMESHOp::OpQuadraticHexahedron,    "QUADRATIC_HEXAHEDRON",    "ICON_DLG_QUADRATIC_HEXAHEDRON" );
   createSMESHAction( SMESHOp::OpTriQuadraticHexahedron, "TRIQUADRATIC_HEXAHEDRON", "ICON_DLG_TRIQUADRATIC_HEXAHEDRON" );
 
@@ -3945,6 +4014,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createSMESHAction( SMESHOp::OpRotation,               "ROT",             "ICON_DLG_MESH_ROTATION" );
   createSMESHAction( SMESHOp::OpSymmetry,               "SYM",             "ICON_SMESH_SYMMETRY_PLANE" );
   createSMESHAction( SMESHOp::OpScale,                  "SCALE",           "ICON_DLG_MESH_SCALE" );
+  createSMESHAction( SMESHOp::OpOffset,                 "OFFSET",          "ICON_DLG_MESH_OFFSET" );
   createSMESHAction( SMESHOp::OpSewing,                 "SEW",             "ICON_SMESH_SEWING_FREEBORDERS" );
   createSMESHAction( SMESHOp::OpMergeNodes,             "MERGE",           "ICON_SMESH_MERGE_NODES" );
   createSMESHAction( SMESHOp::OpMergeElements,          "MERGE_ELEMENTS",  "ICON_DLG_MERGE_ELEMENTS" );
@@ -4006,9 +4076,10 @@ void SMESHGUI::initialize( CAM_Application* app )
   createSMESHAction( SMESHOp::OpPropertiesLength, "MEASURE_LENGTH",   "ICON_MEASURE_LENGTH" );
   createSMESHAction( SMESHOp::OpPropertiesArea,   "MEASURE_AREA",     "ICON_MEASURE_AREA" );
   createSMESHAction( SMESHOp::OpPropertiesVolume, "MEASURE_VOLUME",   "ICON_MEASURE_VOLUME" );
+  createSMESHAction( SMESHOp::OpAngle,            "MEASURE_ANGLE",    "ICON_MEASURE_ANGLE" );
 
-  createSMESHAction( SMESHOp::OpHide,     "HIDE" );
-  createSMESHAction( SMESHOp::OpShow,     "SHOW" );
+  createSMESHAction( SMESHOp::OpHide,     "HIDE", "ICON_HIDE" );
+  createSMESHAction( SMESHOp::OpShow,     "SHOW", "ICON_SHOW" );
   createSMESHAction( SMESHOp::OpShowOnly, "DISPLAY_ONLY" );
 
   createSMESHAction( SMESHOp::OpSortChild, "SORT_CHILD_ITEMS" );
@@ -4018,6 +4089,7 @@ void SMESHGUI::initialize( CAM_Application* app )
                << SMESHOp::OpNodeConnectivityNb                                         // node controls
                << SMESHOp::OpFreeEdge << SMESHOp::OpFreeBorder
                << SMESHOp::OpLength << SMESHOp::OpConnection << SMESHOp::OpEqualEdge    // edge controls
+               << SMESHOp::OpDeflection2D
                << SMESHOp::OpFreeFace << SMESHOp::OpLength2D << SMESHOp::OpConnection2D
                << SMESHOp::OpArea << SMESHOp::OpTaper << SMESHOp::OpAspectRatio
                << SMESHOp::OpMinimumAngle << SMESHOp::OpWarpingAngle << SMESHOp::OpSkew
@@ -4103,6 +4175,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createMenu( SMESHOp::OpCutGroups,            meshId, -1 );
   createMenu( separator(),                     meshId, -1 );
   createMenu( SMESHOp::OpGroupUnderlyingElem,  meshId, -1 );
+  createMenu( SMESHOp::OpFaceGroupsByEdges,    meshId, -1 );
   createMenu( separator(),                     meshId, -1 );
   createMenu( SMESHOp::OpMeshInformation,      meshId, -1 );
   //createMenu( SMESHOp::OpStdInfo, meshId, -1 );
@@ -4131,6 +4204,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createMenu( SMESHOp::OpSkew,                  faceId,   -1 );
   createMenu( SMESHOp::OpMaxElementLength2D,    faceId,   -1 );
   createMenu( SMESHOp::OpEqualFace,             faceId,   -1 );
+  createMenu( SMESHOp::OpDeflection2D,          faceId,   -1 );
   createMenu( SMESHOp::OpAspectRatio3D,         volumeId, -1 );
   createMenu( SMESHOp::OpVolume,                volumeId, -1 );
   createMenu( SMESHOp::OpMaxElementLength3D,    volumeId, -1 );
@@ -4166,6 +4240,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createMenu( SMESHOp::OpQuadraticTetrahedron,   addId, -1 );
   createMenu( SMESHOp::OpQuadraticPyramid,       addId, -1 );
   createMenu( SMESHOp::OpQuadraticPentahedron,   addId, -1 );
+  createMenu( SMESHOp::OpBiQuadraticPentahedron, addId, -1 );
   createMenu( SMESHOp::OpQuadraticHexahedron,    addId, -1 );
   createMenu( SMESHOp::OpTriQuadraticHexahedron, addId, -1 );
 
@@ -4180,34 +4255,36 @@ void SMESHGUI::initialize( CAM_Application* app )
   //createMenu( SMESHOp::OpRenumberingNodes,    renumId, -1 );
   //createMenu( SMESHOp::OpRenumberingElements, renumId, -1 );
 
+  createMenu( SMESHOp::OpMergeNodes,     transfId, -1 );
+  createMenu( SMESHOp::OpMergeElements,  transfId, -1 );
   createMenu( SMESHOp::OpTranslation,    transfId, -1 );
   createMenu( SMESHOp::OpRotation,       transfId, -1 );
   createMenu( SMESHOp::OpSymmetry,       transfId, -1 );
   createMenu( SMESHOp::OpScale,          transfId, -1 );
+  createMenu( SMESHOp::OpOffset,         transfId, -1 );
   createMenu( SMESHOp::OpSewing,         transfId, -1 );
-  createMenu( SMESHOp::OpMergeNodes,     transfId, -1 );
-  createMenu( SMESHOp::OpMergeElements,  transfId, -1 );
   createMenu( SMESHOp::OpDuplicateNodes, transfId, -1 );
 
+  createMenu( SMESHOp::OpConvertMeshToQuadratic, modifyId, -1 );
+  createMenu( SMESHOp::OpCreateBoundaryElements, modifyId, -1 );
+  createMenu( SMESHOp::OpExtrusion,              modifyId, -1 );
+  createMenu( SMESHOp::OpExtrusionAlongAPath,    modifyId, -1 );
+  createMenu( SMESHOp::OpRevolution,             modifyId, -1 );
+  createMenu( SMESHOp::OpOrientation,            modifyId, -1 );
+  createMenu( SMESHOp::OpReorientFaces,          modifyId, -1 );
   createMenu( SMESHOp::OpMoveNode,               modifyId, -1 );
   createMenu( SMESHOp::OpDiagonalInversion,      modifyId, -1 );
   createMenu( SMESHOp::OpUnionOfTwoTriangle,     modifyId, -1 );
-  createMenu( SMESHOp::OpOrientation,            modifyId, -1 );
-  createMenu( SMESHOp::OpReorientFaces,          modifyId, -1 );
   createMenu( SMESHOp::OpUnionOfTriangles,       modifyId, -1 );
   createMenu( SMESHOp::OpCuttingOfQuadrangles,   modifyId, -1 );
   createMenu( SMESHOp::OpSplitVolumes,           modifyId, -1 );
   createMenu( SMESHOp::OpSplitBiQuadratic,       modifyId, -1 );
   createMenu( SMESHOp::OpSmoothing,              modifyId, -1 );
-  createMenu( SMESHOp::OpExtrusion,              modifyId, -1 );
-  createMenu( SMESHOp::OpExtrusionAlongAPath ,   modifyId, -1 );
-  createMenu( SMESHOp::OpRevolution,             modifyId, -1 );
   createMenu( SMESHOp::OpPatternMapping,         modifyId, -1 );
-  createMenu( SMESHOp::OpConvertMeshToQuadratic, modifyId, -1 );
-  createMenu( SMESHOp::OpCreateBoundaryElements, modifyId, -1 );
 
   createMenu( SMESHOp::OpMinimumDistance,  measureId,   -1 );
   createMenu( SMESHOp::OpBoundingBox,      measureId,   -1 );
+  createMenu( SMESHOp::OpAngle,            measureId,   -1 );
   createMenu( SMESHOp::OpPropertiesLength, basicPropId, -1 );
   createMenu( SMESHOp::OpPropertiesArea,   basicPropId, -1 );
   createMenu( SMESHOp::OpPropertiesVolume, basicPropId, -1 );
@@ -4229,8 +4306,8 @@ void SMESHGUI::initialize( CAM_Application* app )
       addElemTb    = createTool( tr( "TB_ADD" ),       QString( "SMESHAddElementToolbar" ) ),
       addNonElemTb = createTool( tr( "TB_ADDNON" ),    QString( "SMESHAddElementToolbar" ) ),
       remTb        = createTool( tr( "TB_REM" ),       QString( "SMESHRemoveToolbar" ) ),
-    //renumbTb     = createTool( tr( "TB_RENUMBER" ),  QString( "SMESHRenumberingToolbar" ) ),  
-      transformTb  = createTool( tr( "TB_TRANSFORM" ), QString( "SMESHTransformationToolbar" ) ),  
+    //renumbTb     = createTool( tr( "TB_RENUMBER" ),  QString( "SMESHRenumberingToolbar" ) ),
+      transformTb  = createTool( tr( "TB_TRANSFORM" ), QString( "SMESHTransformationToolbar" ) ),
       modifyTb     = createTool( tr( "TB_MODIFY" ),    QString( "SMESHModificationToolbar" ) ),
       measuremTb   = createTool( tr( "TB_MEASUREM" ),  QString( "SMESHMeasurementsToolbar" ) ),
       dispModeTb   = createTool( tr( "TB_DISP_MODE" ), QString( "SMESHDisplayModeToolbar" ) );
@@ -4279,6 +4356,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createTool( SMESHOp::OpSkew,                ctrl2dTb );
   createTool( SMESHOp::OpMaxElementLength2D,  ctrl2dTb );
   createTool( SMESHOp::OpEqualFace,           ctrl2dTb );
+  createTool( SMESHOp::OpDeflection2D,        ctrl2dTb );
 
   createTool( SMESHOp::OpAspectRatio3D,         ctrl3dTb );
   createTool( SMESHOp::OpVolume,                ctrl3dTb );
@@ -4311,6 +4389,7 @@ void SMESHGUI::initialize( CAM_Application* app )
   createTool( SMESHOp::OpQuadraticTetrahedron,   addNonElemTb );
   createTool( SMESHOp::OpQuadraticPyramid,       addNonElemTb );
   createTool( SMESHOp::OpQuadraticPentahedron,   addNonElemTb );
+  createTool( SMESHOp::OpBiQuadraticPentahedron, addNonElemTb );
   createTool( SMESHOp::OpQuadraticHexahedron,    addNonElemTb );
   createTool( SMESHOp::OpTriQuadraticHexahedron, addNonElemTb );
 
@@ -4322,31 +4401,32 @@ void SMESHGUI::initialize( CAM_Application* app )
   //createTool( SMESHOp::OpRenumberingNodes,    renumbTb );
   //createTool( SMESHOp::OpRenumberingElements, renumbTb );
 
+  createTool( SMESHOp::OpMergeNodes,     transformTb );
+  createTool( SMESHOp::OpMergeElements,  transformTb );
   createTool( SMESHOp::OpTranslation,    transformTb );
   createTool( SMESHOp::OpRotation,       transformTb );
   createTool( SMESHOp::OpSymmetry,       transformTb );
   createTool( SMESHOp::OpScale,          transformTb );
+  createTool( SMESHOp::OpOffset,         transformTb );
   createTool( SMESHOp::OpSewing,         transformTb );
-  createTool( SMESHOp::OpMergeNodes,     transformTb );
-  createTool( SMESHOp::OpMergeElements,  transformTb );
   createTool( SMESHOp::OpDuplicateNodes, transformTb );
 
+  createTool( SMESHOp::OpConvertMeshToQuadratic, modifyTb );
+  createTool( SMESHOp::OpCreateBoundaryElements, modifyTb );
+  createTool( SMESHOp::OpExtrusion,              modifyTb );
+  createTool( SMESHOp::OpExtrusionAlongAPath,    modifyTb );
+  createTool( SMESHOp::OpRevolution,             modifyTb );
+  createTool( SMESHOp::OpOrientation,            modifyTb );
+  createTool( SMESHOp::OpReorientFaces,          modifyTb );
   createTool( SMESHOp::OpMoveNode,               modifyTb );
   createTool( SMESHOp::OpDiagonalInversion,      modifyTb );
   createTool( SMESHOp::OpUnionOfTwoTriangle,     modifyTb );
-  createTool( SMESHOp::OpOrientation,            modifyTb );
-  createTool( SMESHOp::OpReorientFaces,          modifyTb );
   createTool( SMESHOp::OpUnionOfTriangles,       modifyTb );
   createTool( SMESHOp::OpCuttingOfQuadrangles,   modifyTb );
   createTool( SMESHOp::OpSplitVolumes,           modifyTb );
   createTool( SMESHOp::OpSplitBiQuadratic,       modifyTb );
   createTool( SMESHOp::OpSmoothing,              modifyTb );
-  createTool( SMESHOp::OpExtrusion,              modifyTb );
-  createTool( SMESHOp::OpExtrusionAlongAPath,    modifyTb );
-  createTool( SMESHOp::OpRevolution,             modifyTb );
   createTool( SMESHOp::OpPatternMapping,         modifyTb );
-  createTool( SMESHOp::OpConvertMeshToQuadratic, modifyTb );
-  createTool( SMESHOp::OpCreateBoundaryElements, modifyTb );
 
   createTool( SMESHOp::OpMinimumDistance, measuremTb );
 
@@ -4364,6 +4444,7 @@ void SMESHGUI::initialize( CAM_Application* app )
     group   = pat.arg( SMESHGUI_Selection::typeName( SMESH::GROUP ) ),
     hypo    = pat.arg( SMESHGUI_Selection::typeName( SMESH::HYPOTHESIS ) ),
     algo    = pat.arg( SMESHGUI_Selection::typeName( SMESH::ALGORITHM ) ),
+    smesh   = pat.arg( SMESHGUI_Selection::typeName( SMESH::COMPONENT ) ),
     elems   = QString( "'%1' '%2' '%3' '%4' '%5' '%6'" ).
     arg( SMESHGUI_Selection::typeName( SMESH::SUBMESH_VERTEX ) ).
     arg( SMESHGUI_Selection::typeName( SMESH::SUBMESH_EDGE ) ).
@@ -4442,6 +4523,17 @@ void SMESHGUI::initialize( CAM_Application* app )
   createPopupItem( SMESHOp::OpPopupExportDAT,  OB, mesh_group, only_one_non_empty, anId );
   createPopupItem( SMESHOp::OpDelete,          OB, mesh_part + " " + hyp_alg );
   createPopupItem( SMESHOp::OpDeleteGroup,     OB, group );
+
+  anId = popupMgr()->insert( tr( "MEN_IMPORT" ), -1, -1 );        // IMPORT submenu
+  createPopupItem( SMESHOp::OpPopupImportMED,  OB, smesh, "", anId );
+  createPopupItem( SMESHOp::OpPopupImportUNV,  OB, smesh, "", anId );
+  createPopupItem( SMESHOp::OpPopupImportSTL,  OB, smesh, "", anId );
+#ifdef WITH_CGNS
+  createPopupItem( SMESHOp::OpPopupImportCGNS, OB, smesh, "", anId );
+#endif
+  createPopupItem( SMESHOp::OpPopupImportSAUV, OB, smesh, "", anId );
+  createPopupItem( SMESHOp::OpPopupImportGMF,  OB, smesh, "", anId );
+  createPopupItem( SMESHOp::OpPopupImportDAT,  OB, smesh, "", anId );
   popupMgr()->insert( separator(), -1, 0 );
 
   // popup for viewer
@@ -4580,9 +4672,9 @@ void SMESHGUI::initialize( CAM_Application* app )
   // Controls
   //-------------------------------------------------
   QString
-    aMeshInVtkHasNodes = aMeshInVTK + "&&" + hasNodes,
-    aMeshInVtkHasEdges = aMeshInVTK + "&&" + hasEdges,
-    aMeshInVtkHasFaces = aMeshInVTK + "&&" + hasFaces,
+    aMeshInVtkHasNodes   = aMeshInVTK + "&&" + hasNodes,
+    aMeshInVtkHasEdges   = aMeshInVTK + "&&" + hasEdges,
+    aMeshInVtkHasFaces   = aMeshInVTK + "&&" + hasFaces,
     aMeshInVtkHasVolumes = aMeshInVTK + "&&" + hasVolumes;
 
   anId = popupMgr()->insert( tr( "MEN_CTRL" ), -1, -1 );
@@ -4677,10 +4769,15 @@ void SMESHGUI::initialize( CAM_Application* app )
   popupMgr()->insert ( action( SMESHOp::OpOverConstrainedFace ), aSubId, -1 );
   popupMgr()->setRule( action( SMESHOp::OpOverConstrainedFace ), aMeshInVtkHasFaces, QtxPopupMgr::VisibleRule );
   popupMgr()->setRule( action( SMESHOp::OpOverConstrainedFace ), "controlMode = 'eOverConstrainedFace'", QtxPopupMgr::ToggleRule );
+
   popupMgr()->insert ( action( SMESHOp::OpEqualFace ), aSubId, -1 );
   popupMgr()->setRule( action( SMESHOp::OpEqualFace ), aMeshInVtkHasFaces, QtxPopupMgr::VisibleRule );
   popupMgr()->setRule( action( SMESHOp::OpEqualFace ), "controlMode = 'eCoincidentElems2D'", QtxPopupMgr::ToggleRule );
 
+  popupMgr()->insert ( action( SMESHOp::OpDeflection2D ), aSubId, -1 );
+  popupMgr()->setRule( action( SMESHOp::OpDeflection2D ), aMeshInVtkHasFaces + " && hasGeomReference", QtxPopupMgr::VisibleRule );
+  popupMgr()->setRule( action( SMESHOp::OpDeflection2D ), "controlMode = 'eDeflection2D'", QtxPopupMgr::ToggleRule );
+
   aSubId = popupMgr()->insert( tr( "MEN_VOLUME_CTRL" ), anId, -1 ); // VOLUME CONTROLS
 
   popupMgr()->insert ( action( SMESHOp::OpAspectRatio3D  ), aSubId, -1 );
@@ -4824,11 +4921,7 @@ bool SMESHGUI::activateModule( SUIT_Study* study )
   action(SMESHOp::OpDelete)->setEnabled(true); // Delete: Key_Delete
 
   //  0020210. Make SMESH_Gen update meshes at switching GEOM->SMESH
-  GetSMESHGen()->SetCurrentStudy(SALOMEDS::Study::_nil());
-  if ( SalomeApp_Study* s = dynamic_cast<SalomeApp_Study*>( study )) {
-    if ( _PTR(Study) aStudy = s->studyDS() )
-      GetSMESHGen()->SetCurrentStudy( _CAST(Study,aStudy)->GetStudy() );
-  }
+  GetSMESHGen()->UpdateStudy();
 
   // get all view currently opened in the study and connect their signals  to
   // the corresponding slots of the class.
@@ -4861,7 +4954,7 @@ void SMESHGUI::studyClosed( SUIT_Study* s )
 {
   if( !s )
     return;
-  SMESH::RemoveVisuData( s->id() );
+  SMESH::RemoveVisuData();
   SalomeApp_Module::studyClosed( s );
 }
 
@@ -4877,16 +4970,11 @@ void SMESHGUI::OnGUIEvent()
 
 SMESH::SMESH_Gen_var SMESHGUI::GetSMESHGen()
 {
-  _PTR(Study) aStudy = SMESH::GetActiveStudyDocument(); //Document OCAF de l'etude active
   if ( CORBA::is_nil( myComponentSMESH ) )
-    {
-      SMESHGUI aGUI; //SRN BugID: IPAL9186: Create an instance of SMESHGUI to initialize myComponentSMESH
-      if ( aStudy )
-        aGUI.myComponentSMESH->SetCurrentStudy(_CAST(Study,aStudy)->GetStudy());
-      return aGUI.myComponentSMESH;
-    }
-  if ( aStudy )
-    myComponentSMESH->SetCurrentStudy(_CAST(Study,aStudy)->GetStudy());
+  {
+    SMESHGUI aGUI; //SRN BugID: IPAL9186: Create an instance of SMESHGUI to initialize myComponentSMESH
+    return aGUI.myComponentSMESH;
+  }
   return myComponentSMESH;
 }
 
@@ -4908,9 +4996,9 @@ void SMESHGUI::contextMenuPopup( const QString& client, QMenu* menu, QString& ti
     _PTR(Study) study = appStudy->studyDS();
     _PTR(SObject) obj = study->FindObjectID( io->getEntry() );
     if ( obj ) {
-      QString aName = QString( SMESH::fromUtf8(obj->GetName()) );
-      while ( aName.at( aName.length() - 1 ) == ' ' ) // Remove extraspaces in Name of Popup
-          aName.remove( (aName.length() - 1), 1 );
+      QString aName = SMESH::fromUtf8( obj->GetName());
+      while ( !aName.isEmpty() && aName.at( aName.length() - 1 ) == ' ' ) // Remove extraspaces in Name of Popup
+        aName.remove(( aName.length() - 1 ), 1 );
       title = aName;
     }
   }
@@ -5008,6 +5096,9 @@ void SMESHGUI::createPreferences()
 
   int dispgroup = addPreference( tr( "PREF_DISPLAY_MODE_GROUP" ), genTab );
   setPreferenceProperty( dispgroup, "columns", 2 );
+
+  addPreference( tr( "PREF_FITALL_ON_DISPLAYONLY" ), dispgroup, LightApp_Preferences::Bool, "SMESH", "fitall_on_displayonly" );
+  
   int dispmode = addPreference( tr( "PREF_DISPLAY_MODE" ), dispgroup, LightApp_Preferences::Selector, "SMESH", "display_mode" );
   QStringList modes;
   modes.append( tr("MEN_WIRE") );
@@ -5052,11 +5143,21 @@ void SMESHGUI::createPreferences()
   setPreferenceProperty( doubleNodesTol, "max", 1000000.0 );
   setPreferenceProperty( doubleNodesTol, "step", 0.0000001 );
 
+  /*
+  int cinc = addPreference(tr("PREF_CONTROLS_INCREMENT"), qaGroup, LightApp_Preferences::IntSpin, "SMESH", "controls_increment");
+  setPreferenceProperty( cinc, "min", 0 );
+  setPreferenceProperty( cinc, "max", 5 );
+  */
 
   int exportgroup = addPreference( tr( "PREF_GROUP_EXPORT" ), genTab );
   setPreferenceProperty( exportgroup, "columns", 2 );
   addPreference( tr( "PREF_AUTO_GROUPS" ), exportgroup, LightApp_Preferences::Bool, "SMESH", "auto_groups" );
   addPreference( tr( "PREF_SHOW_WARN" ), exportgroup, LightApp_Preferences::Bool, "SMESH", "show_warning" );
+  int zTol = addPreference( tr( "PREF_ZTOLERANCE" ), exportgroup, LightApp_Preferences::DblSpin, "SMESH", "med_ztolerance" );
+  setPreferenceProperty( zTol, "precision", 10 );
+  setPreferenceProperty( zTol, "min", 0.0000000001 );
+  setPreferenceProperty( zTol, "max", 1000000.0 );
+  setPreferenceProperty( zTol, "step", 1. );
   //addPreference( tr( "PREF_RENUMBER" ), exportgroup, LightApp_Preferences::Bool, "SMESH", "renumbering" );
 
   int computeGroup = addPreference( tr( "PREF_GROUP_COMPUTE" ), genTab );
@@ -5245,7 +5346,7 @@ void SMESHGUI::createPreferences()
 
   int numGroup = addPreference( tr( "PREF_GROUP_NUMBERING" ), meshTab );
   setPreferenceProperty( numGroup, "columns", 2 );
-  
+
   addPreference( tr( "PREF_NUMBERING_NODE" ), numGroup, LightApp_Preferences::Color, "SMESH", "numbering_node_color" );
   addVtkFontPref( tr( "PREF_NUMBERING_FONT" ), numGroup, "numbering_node_font", true );
 
@@ -5285,6 +5386,10 @@ void SMESHGUI::createPreferences()
   addPreference( tr( "PREF_ELEMENTS" ), precSelGroup, LightApp_Preferences::Double, "SMESH", "selection_precision_element" );
   addPreference( tr( "PREF_OBJECTS" ), precSelGroup, LightApp_Preferences::Double, "SMESH", "selection_precision_object" );
 
+  int sinc = addPreference(tr("PREF_SELECTION_INCREMENT"), selTab, LightApp_Preferences::IntSpin, "SMESH", "selection_increment");
+  setPreferenceProperty( sinc, "min", 0 );
+  setPreferenceProperty( sinc, "max", 5 );
+
   // Scalar Bar tab ------------------------------------------------------------------------
   int sbarTab = addPreference( tr( "SMESH_SCALARBAR" ) );
   int fontGr = addPreference( tr( "SMESH_FONT_SCALARBAR" ), sbarTab );
@@ -5379,12 +5484,13 @@ void SMESHGUI::preferencesChanged( const QString& sect, const QString& name )
     std::string aWarning;
     SUIT_ResourceMgr* aResourceMgr = SMESH::GetResourceMgr(this);
 
-    if ( name== "selection_object_color" ||
-         name=="selection_element_color" ||
-         name==        "highlight_color" ||
-         name=="selection_precision_node"    ||
-         name=="selection_precision_element" ||
-         name=="selection_precision_object"   )
+    if ( name ==  "selection_object_color" ||
+         name == "selection_element_color" ||
+         name ==         "highlight_color" ||
+         name == "selection_precision_node"    ||
+         name == "selection_precision_element" ||
+         name == "selection_precision_object"  ||
+         name == "selection_increment")
     {
       SMESH::UpdateSelectionProp( this );
     }
@@ -5596,8 +5702,7 @@ LightApp_Operation* SMESHGUI::createOperation( const int id ) const
 
 void SMESHGUI::switchToOperation(int id)
 {
-  if ( _PTR(Study) aStudy = SMESH::GetActiveStudyDocument() )
-    activeStudy()->abortAllOperations();
+  activeStudy()->abortAllOperations();
   startOperation( id );
 }
 
@@ -5667,7 +5772,7 @@ const char* gPathSep   = "|"; // character used to separate paths
  * \brief Store visual parameters
  *
  * This method is called just before the study document is saved.
- * Store visual parameters in AttributeParameter attribue(s)
+ * Store visual parameters in AttributeParameter attribute(s)
  */
 void SMESHGUI::storeVisualParameters (int savePoint)
 {
@@ -5690,12 +5795,11 @@ void SMESHGUI::storeVisualParameters (int savePoint)
                                                              savePoint);
   _PTR(IParameters) ip = ClientFactory::getIParameters(ap);
 
-  // store map of custom markers
-  const VTK::MarkerMap& aMarkerMap = myMarkerMap[ studyDS->StudyId() ];
-  if( !aMarkerMap.empty() )
+  // store custom markers
+  if( !myMarkerMap.empty() )
   {
-    VTK::MarkerMap::const_iterator anIter = aMarkerMap.begin();
-    for( ; anIter != aMarkerMap.end(); anIter++ )
+    VTK::MarkerMap::const_iterator anIter = myMarkerMap.begin();
+    for( ; anIter != myMarkerMap.end(); anIter++ )
     {
       int anId = anIter->first;
       VTK::MarkerData aMarkerData = anIter->second;
@@ -6020,7 +6124,7 @@ typedef std::map<int, TPlaneInfoList> TPlaneInfoMap;
  * \brief Restore visual parameters
  *
  * This method is called after the study document is opened.
- * Restore visual parameters from AttributeParameter attribue(s)
+ * Restore visual parameters from AttributeParameter attribute(s)
  */
 void SMESHGUI::restoreVisualParameters (int savePoint)
 {
@@ -6043,8 +6147,7 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
                                                              savePoint);
   _PTR(IParameters) ip = ClientFactory::getIParameters(ap);
 
-  // restore map of custom markers and map of clipping planes
-  VTK::MarkerMap& aMarkerMap = myMarkerMap[ studyDS->StudyId() ];
+  // restore custom markers and map of clipping planes
   TPlaneDataMap aPlaneDataMap;
 
   std::vector<std::string> properties = ip->getProperties();
@@ -6101,7 +6204,7 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
           aMarkerTexture.push_back( aChar.digitValue() );
       }
 
-      aMarkerMap[ anId ] = VTK::MarkerData( aMarkerFileName, aMarkerTexture );
+      myMarkerMap[ anId ] = VTK::MarkerData( aMarkerFileName, aMarkerTexture );
     }
     else if( aPropertyType == "ClippingPlane" )
     {
@@ -6135,7 +6238,7 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
       aPlaneData.Mode = aPropertyValueList[0].toInt( &ok );
       if( !ok )
         continue;
-      
+
       ok = false;
       aPlaneData.isOpenGLClipping = aPropertyValueList[1].toInt( &ok );
       if( !ok )
@@ -6216,7 +6319,7 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
 
     // Check that the entry corresponds to a real object in the Study
     // as the object may be deleted or modified after the visual state is saved.
-    _PTR(SObject) so = studyDS->FindObjectID(entry.toLatin1().data());
+    _PTR(SObject) so = studyDS->FindObjectID(entry.toUtf8().data());
     if (!so) continue; //Skip the not existent entry
 
     std::vector<std::string> paramNames = ip->getAllParameterNames( *entIt );
@@ -6283,7 +6386,7 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
                 SMESH_Actor* aGeomAc = SMESH_Actor::SafeDownCast(ac);
                 if (aGeomAc->hasIO()) {
                   Handle(SALOME_InteractiveObject) io = aGeomAc->getIO();
-                  if (io->hasEntry() && strcmp(io->getEntry(), entry.toLatin1().data()) == 0) {
+                  if (io->hasEntry() && strcmp(io->getEntry(), entry.toUtf8().data()) == 0) {
                     isFound = true;
                     vtkActors.Bind(viewIndex, aGeomAc);
                   }
@@ -6619,8 +6722,8 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
                     aSmeshActor->SetMarkerStd( (VTK::MarkerType)aParam1, (VTK::MarkerScale)aParam2 );
                   }
                   else if( data[0] == "custom" ) {
-                    VTK::MarkerMap::const_iterator markerIt = aMarkerMap.find( aParam1 );
-                    if( markerIt != aMarkerMap.end() ) {
+                    VTK::MarkerMap::const_iterator markerIt = myMarkerMap.find( aParam1 );
+                    if( markerIt != myMarkerMap.end() ) {
                       VTK::MarkerData aMarkerData = markerIt->second;
                       aSmeshActor->SetMarkerTexture( aParam1, aMarkerData.second );
                     }
@@ -6635,9 +6738,9 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
             // Clipping
             else if (paramNameStr.startsWith("ClippingPlane")) {
               QStringList vals = val.split(gDigitsSep, QString::SkipEmptyParts);
-              // old format - val looks like "Off" or "1:0:0:0.5:0:0" 
+              // old format - val looks like "Off" or "1:0:0:0.5:0:0"
               // (mode(relative), is OpenGL clipping plane, orientation, distance, two angles)
-              // or "0:1:1:10.5:1.0:1.0:15.0:10.0:10.0" 
+              // or "0:1:1:10.5:1.0:1.0:15.0:10.0:10.0"
               // (mode(absolute), is OpenGL clipping plane, orientation, base point(x, y, z), direction (dx, dy, dz))
               // new format - val looks like "Off" or "0" (plane id)
               // (note: in new format "Off" value is used only for consistency,
@@ -6837,10 +6940,10 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
           break;
         }
       }
-    
+
     }
   }
-  
+
 
   // update all VTK views
   QList<SUIT_ViewManager*> lst;
@@ -6856,7 +6959,7 @@ void SMESHGUI::restoreVisualParameters (int savePoint)
       while( vtkActor* aVTKActor = anAllActors->GetNextActor() )
         if( SMESH_Actor* anActor = SMESH_Actor::SafeDownCast( aVTKActor ) )
           anActor->SetOpenGLClippingPlane();
-      
+
       vtkView->getRenderer()->ResetCameraClippingRange();
       vtkView->Repaint();
     }
@@ -6969,13 +7072,13 @@ void SMESHGUI::message( const QString& msg )
       // get study
       _PTR(Study) study = dynamic_cast<SalomeApp_Study*>( application()->activeStudy() )->studyDS();
       // get mesh name
-      _PTR(SObject) obj = study->FindObjectID( entry.toLatin1().constData() );
+      _PTR(SObject) obj = study->FindObjectID( entry.toUtf8().constData() );
       QString name;
       if ( obj )
         name = SMESH::fromUtf8(obj->GetName());
       if ( name.isEmpty() )
         return;
-      
+
       if ( data.last() == "stop" )
         application()->putInfo( tr( "MESH_LOADING_MSG_FINISHED" ).arg( name ) );
       else
@@ -7016,7 +7119,7 @@ bool SMESHGUI::renameAllowed( const QString& entry) const {
     return false;
 
   SalomeApp_DataObject* obj = dynamic_cast<SalomeApp_DataObject*>(appStudy->findObjectByEntry(entry));
-  
+
   if(!obj)
     return false;
 
@@ -7024,7 +7127,7 @@ bool SMESHGUI::renameAllowed( const QString& entry) const {
     return false;
 
   // check type to prevent renaming of inappropriate objects
-  int aType = SMESHGUI_Selection::type(qPrintable(entry), SMESH::GetActiveStudyDocument());
+  int aType = SMESHGUI_Selection::type(qPrintable(entry));
   if (aType == SMESH::MESH || aType == SMESH::GROUP ||
       aType == SMESH::SUBMESH || aType == SMESH::SUBMESH_COMPOUND ||
       aType == SMESH::SUBMESH_SOLID || aType == SMESH::SUBMESH_FACE ||
@@ -7046,17 +7149,17 @@ bool SMESHGUI::renameObject( const QString& entry, const QString& name) {
   SalomeApp_Application* anApp = dynamic_cast<SalomeApp_Application*>( application() );
   if( !anApp )
     return false;
-    
+
   SalomeApp_Study* appStudy = dynamic_cast<SalomeApp_Study*>( anApp->activeStudy() );
 
   if(!appStudy)
     return false;
-  
+
   _PTR(Study) aStudy = appStudy->studyDS();
-  
+
   if(!aStudy)
     return false;
-  
+
   bool aLocked = (_PTR(AttributeStudyProperties)(appStudy->studyDS()->GetProperties()))->IsLocked();
   if ( aLocked ) {
     SUIT_MessageBox::warning ( anApp->desktop(), QObject::tr("WRN_WARNING"), QObject::tr("WRN_STUDY_LOCKED") );
@@ -7071,14 +7174,14 @@ bool SMESHGUI::renameObject( const QString& entry, const QString& name) {
     if ( obj->FindAttribute(anAttr, "AttributeName") ) {
       aName = anAttr;
       // check type to prevent renaming of inappropriate objects
-      int aType = SMESHGUI_Selection::type( qPrintable(entry), SMESH::GetActiveStudyDocument() );
+      int aType = SMESHGUI_Selection::type( qPrintable(entry));
       if (aType == SMESH::MESH || aType == SMESH::GROUP ||
           aType == SMESH::SUBMESH || aType == SMESH::SUBMESH_COMPOUND ||
           aType == SMESH::SUBMESH_SOLID || aType == SMESH::SUBMESH_FACE ||
           aType == SMESH::SUBMESH_EDGE || aType == SMESH::SUBMESH_VERTEX ||
           aType == SMESH::HYPOTHESIS || aType == SMESH::ALGORITHM) {
         if ( !name.isEmpty() ) {
-          SMESHGUI::GetSMESHGen()->SetName(obj->GetIOR().c_str(), qPrintable(name) );
+          SMESHGUI::GetSMESHGen()->SetName(obj->GetIOR().c_str(), qUtf8Printable(name) );
 
           // update name of group object and its actor
           Handle(SALOME_InteractiveObject) IObject =
@@ -7086,9 +7189,9 @@ bool SMESHGUI::renameObject( const QString& entry, const QString& name) {
 
           SMESH::SMESH_GroupBase_var aGroupObject = SMESH::IObjectToInterface<SMESH::SMESH_GroupBase>(IObject);
           if( !aGroupObject->_is_nil() ) {
-            aGroupObject->SetName( qPrintable(name) );
+            aGroupObject->SetName( qUtf8Printable(name) );
             if ( SMESH_Actor *anActor = SMESH::FindActorByEntry( qPrintable(entry) ) )
-              anActor->setName( qPrintable(name) );
+              anActor->setName( qUtf8Printable(name) );
           }
           return true;
         }