bos #24009 Merge gni/adaptation branch (MG-Adapt)

2024-11-11 16:19:16 +05:00 · 2021-03-22 15:02:50 +03:00 · 2021-03-22 15:02:50 +03:00 · 03d855b75b
commit 03d855b75b
parent 24825596b3
48 changed files with 6025 additions and 98 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -195,6 +195,15 @@ IF(NOT WITH_SHAPER_STUDY AND SALOME_BUILD_TESTS)
  MESSAGE(WARNING "SHAPERSTUDY is not found; the corresponding tests will be omitted")
 ENDIF()

+# Find MEDCoupling
+# ================
+SET(MEDCOUPLING_ROOT_DIR $ENV{MEDCOUPLING_ROOT_DIR} CACHE PATH "Path to the MEDCoupling tool")
+IF(EXISTS ${MEDCOUPLING_ROOT_DIR})
+  FIND_PACKAGE(SalomeMEDCoupling REQUIRED)   # will reload HDF5, MEDFile, XDR, etc ...
+ELSE(EXISTS ${MEDCOUPLING_ROOT_DIR})
+  MESSAGE(FATAL_ERROR "We absolutely need the MEDCoupling tool, please define MEDCOUPLING_ROOT_DIR !")
+ENDIF(EXISTS ${MEDCOUPLING_ROOT_DIR})
+
 ##
 ## SMESH specifics
 ##
@ -231,6 +240,16 @@ IF(WIN32)
  ENDIF(${F2C_FOUND})
 ENDIF(WIN32)

+
+SET (SALOME_SMESH_DISABLE_MG_ADAPT OFF)
+IF(WIN32)
+  # On Windows temporarily disable MG_ADAPT
+  SET (SALOME_SMESH_DISABLE_MG_ADAPT ON)
+ENDIF()
+IF(SALOME_SMESH_DISABLE_MG_ADAPT)
+  ADD_DEFINITIONS(-DDISABLE_MG_ADAPT)
+ENDIF()
+
 IF(SALOME_SMESH_ENABLE_MEFISTO)
 SET(MEFISTO2D_NAME "MEFISTO_2D")
 ELSE(SALOME_SMESH_ENABLE_MEFISTO)
--- a/SalomeSMESHConfig.cmake.in
+++ b/SalomeSMESHConfig.cmake.in
@ -59,6 +59,10 @@ SET(SALOME_SMESH_BUILD_GUI @SALOME_BUILD_GUI@)
 SET(SALOME_SMESH_USE_CGNS  @SALOME_SMESH_USE_CGNS@)
 SET(SALOME_SMESH_USE_TBB   @SALOME_SMESH_USE_TBB@)
 SET(SALOME_SMESH_ENABLE_MEFISTO   @SALOME_SMESH_ENABLE_MEFISTO@)
+SET(SALOME_SMESH_DISABLE_MG_ADAPT @SALOME_SMESH_DISABLE_MG_ADAPT@)
+IF(SALOME_SMESH_DISABLE_MG_ADAPT)
+  LIST(APPEND SMESH_DEFINITIONS "-DDISABLE_MG_ADAPT")
+ENDIF()
 IF(NOT WIN32)
  LIST(APPEND SMESH_DEFINITIONS "-DENABLE_MEFISTO")
 ENDIF(NOT WIN32)
--- a/doc/salome/examples/CMakeLists.txt
+++ b/doc/salome/examples/CMakeLists.txt
@ -47,3 +47,4 @@ INSTALL(FILES CTestTestfileInstall.cmake
        DESTINATION ${TEST_INSTALL_DIRECTORY}
        RENAME CTestTestfile.cmake)
 INSTALL(FILES tests.set DESTINATION ${TEST_INSTALL_DIRECTORY})
+INSTALL(DIRECTORY MGAdapt_med_files DESTINATION ${TEST_INSTALL_DIRECTORY})
--- a/doc/salome/examples/MGAdaptTests_without_session.py
+++ b/doc/salome/examples/MGAdaptTests_without_session.py
@ -0,0 +1,472 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""Tests des adaptations par MGAdapt en standalone
+
+Copyright 2021 EDF
+Gérald NICOLAS
+33.1.78.19.43.52
+"""
+
+__revision__ = "V04.04"
+
+#========================= Les imports - Début ===================================
+
+import sys
+import os
+import salome
+
+salome.standalone()
+salome.salome_init()
+
+import SMESH
+from salome.smesh import smeshBuilder
+smesh = smeshBuilder.New()
+
+#========================== Les imports - Fin ====================================
+
+#========================= Paramétrage - Début ===================================
+# 1. REPDATA = répertoire du cas
+REPDATA = "MGAdapt_med_files"
+#
+# 2. Repérage des données
+D_DATA = dict()
+D_DATA["01"] = "01" # 2D plan ; carte locale
+D_DATA["02"] = "02" # 2D plan ; carte en arrière-plan
+D_DATA["03"] = "01" # 2D plan ; taille constante
+D_DATA["04"] = "04" # 3D ; carte locale et dernier pas de temps
+D_DATA["05"] = "04" # 3D ; carte locale et pas de temps n°1
+D_DATA["06"] = "06" # 2D non plan; carte locale
+D_DATA["07"] = "07" # 2D plan ; carte locale anisotrope
+D_DATA["08"] = "08" # 3D ; carte en arrière-plan anisotrope
+D_DATA["10"] = "10" # 2D plan ; carte locale et maillage initial quadratique
+D_DATA["11"] = "11" # 2D plan ; carte locale et maillage initial en quadrangles
+D_DATA["13"] = "13" # 3D ; carte locale en simple précision et dernier pas de temps
+#========================== Paramétrage - Fin ====================================
+
+class MGAdaptTest (object):
+
+  """Test de l'adaptation par MGAdapt
+
+Options facultatives
+********************
+Le(s) nom du/des tests à passer. Si aucun n'est donné, tous les cas sont passés.
+  """
+
+# A. La base
+
+  message_info = ""
+  _verbose = 0
+  _verbose_max = 0
+  affiche_aide_globale = 0
+
+# B. Les variables
+
+  l_cas = None
+  rep_test = None
+  nro_cas = None
+  cas = None
+
+#=========================== Début de la méthode =================================
+
+  def __init__ ( self, liste_option ):
+
+    """Le constructeur de la classe MGAdaptTest"""
+
+    self.l_cas = list()
+
+    for option in liste_option :
+
+      #print (option)
+      saux = option.upper()
+      #print (saux)
+      if saux in ( "-H", "-HELP" ):
+        self.affiche_aide_globale = 1
+      elif saux == "-V" :
+        self._verbose = 1
+      elif saux == "-VMAX" :
+        self._verbose = 1
+        self._verbose_max = 1
+      else :
+        self.l_cas.append(option)
+
+    if not self.l_cas:
+      for cle in D_DATA:
+        self.l_cas.append(cle)
+    self.l_cas.sort()
+
+    if self._verbose_max:
+      print ("Liste des cas : {}".format(self.l_cas))
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def __del__(self):
+    """A la suppression de l'instance de classe"""
+    if self._verbose_max:
+      print ("Suppression de l'instance de la classe.")
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _add_file_in (self, objet_adapt):
+    """Ajout du fichier med d'entrée
+
+Entrées/Sorties :
+  :objet_adapt: l'objet du module
+    """
+    if self._verbose_max:
+      print ("_add_file_in pour {}".format(self.nro_cas))
+
+    ficmed = os.path.join (REPDATA, "test_{}.med".format(D_DATA[self.nro_cas]))
+    if self._verbose_max:
+      print ("Fichier {}".format(ficmed))
+    if not os.path.isfile(ficmed):
+      erreur = 1
+      message = "Le fichier {} est inconnu.".format(ficmed)
+    else:
+      objet_adapt.setMEDFileIn(ficmed)
+      erreur = 0
+      message = ""
+
+    return erreur, message
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _add_file_out (self, objet_adapt):
+    """Ajout du fichier de sortie
+
+Entrées/Sorties :
+  :objet_adapt: l'objet du module
+    """
+    if self._verbose_max:
+      print ("_add_file_out pour {}".format(self.nro_cas))
+
+    ficmed = os.path.join (REPDATA, "test_{}.adapt.tui.med".format(self.nro_cas))
+    if os.path.isfile(ficmed):
+      os.remove(ficmed)
+
+    objet_adapt.setMEDFileOut(ficmed)
+
+    if self._verbose:
+      print (". Maillage adapté dans le fichier {}".format(ficmed))
+
+    return
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def  _add_file_bkg (self, objet_adapt):
+    """Ajout du fichier med de fond
+
+Entrées/Sorties :
+  :objet_adapt: l'objet du module
+    """
+    if self._verbose_max:
+      print ("_add_file_bkg pour {}".format(self.nro_cas))
+
+    ficmed = os.path.join (REPDATA, "test_{}_bg.med".format(D_DATA[self.nro_cas]))
+    if self._verbose_max:
+      print ("Fichier {}".format(ficmed))
+    if not os.path.isfile(ficmed):
+      erreur = 1
+      message = "Le fichier {} est inconnu.".format(ficmed)
+    else:
+      objet_adapt.setMEDFileBackground(ficmed)
+      erreur = 0
+      message = ""
+
+    return erreur, message
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _hypo_creation (self, maptype, option, niveau=3):
+    """Création d'une hypothèse
+
+Entrées :
+  :maptype: type de carte : "Local", "Background", "Constant"
+  :option: nom du champ si "Local" ou "Background", valeur si "Constant"
+  :niveau: niveau de verbosité
+
+Sortie :
+  :hypo: l'objet hypothèse
+    """
+    if self._verbose_max:
+      print ("_hypo_creation pour {} avec {}".format(maptype,option))
+
+    erreur = 0
+    message = ""
+
+    while not erreur :
+
+      #--- Création de l'hypothèse ---
+      hypo = smesh.CreateAdaptationHypothesis()
+
+      # Type de données
+      if ( maptype in ("Local", "Background", "Constant") ):
+        hypo.setSizeMapType(maptype)
+      else:
+        message = "Le type de carte {} est inconnu.".format(maptype)
+        erreur = 2
+        break
+
+      # Valeur
+      if ( maptype in ("Local", "Background") ):
+        hypo.setSizeMapFieldName(option)
+      else:
+        hypo.setConstantSize(option)
+
+      # Verbosité
+      self._hypo_verbose (hypo, niveau)
+
+      break
+
+    return erreur, message, hypo
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _hypo_verbose (self, hypo, niveau=10):
+    """Débogage des hypothèses
+
+Entrées :
+  :niveau: niveau de verbosité
+
+Entrées/Sorties :
+  :hypo: l'objet hypothèse
+    """
+
+    hypo.setVerbosityLevel(niveau)
+
+    if self._verbose_max:
+
+      hypo.setPrintLogInFile(True)
+      hypo.setKeepWorkingFiles(True)
+      hypo.setRemoveOnSuccess(False)
+
+    return
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _calcul (self, objet_adapt, hypo):
+    """Calcul
+
+Entrées :
+  :objet_adapt: l'objet du module
+  :hypo: l'objet hypothèse
+    """
+
+    #--- association de l'hypothese à l'objet de l'adaptation
+    objet_adapt.AddHypothesis(hypo)
+
+    #-- Calcul
+    if self._verbose_max:
+      print (hypo.getCommandToRun())
+    erreur = objet_adapt.Compute(False)
+    if erreur:
+      message = "Echec dans l'adaptation."
+    else:
+      message = ""
+
+    return erreur, message
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _test_00 (self, objet_adapt):
+    """Test générique
+
+Entrées/Sorties :
+  :objet_adapt: l'objet du module
+    """
+
+    erreur = 0
+    message = ""
+
+    while not erreur :
+
+      #--- les fichiers MED ---#
+      erreur, message = self._add_file_in (objet_adapt)
+      if erreur:
+        break
+      self._add_file_out (objet_adapt)
+      if self.nro_cas in ("02", "08"):
+        erreur, message = self._add_file_bkg (objet_adapt)
+        if erreur:
+          break
+
+      #--- Création de l'hypothèse ---
+      if self.nro_cas in ("01", "04", "05", "06", "07", "10", "11", "13"):
+        maptype = "Local"
+        if self.nro_cas in ("01", "04", "05", "06", "07", "10"):
+          option = "TAILLE"
+        elif self.nro_cas in ("11",):
+          option = "Taille de maille"
+        elif self.nro_cas in ("13",):
+          option = "Elevation"
+      elif self.nro_cas in ("02", "08"):
+        maptype = "Background"
+        option = "TAILLE"
+      elif self.nro_cas in ("03",):
+        maptype = "Constant"
+        option = 0.5
+
+      if self._verbose:
+        niveau = 3
+      elif self._verbose_max:
+        niveau = 10
+      else:
+        niveau = 0
+      erreur, message, hypo = self._hypo_creation(maptype, option, niveau)
+      if erreur:
+        break
+
+      #-- Ajout des options
+      if self.nro_cas in ("04", "06", "07", "08", "10", "11"):
+        hypo.setTimeStepRankLast()
+      elif self.nro_cas in ("05",):
+        hypo.setTimeStepRank(1,1)
+      elif self.nro_cas in ("13",):
+        hypo.setTimeStepRank(0,0)
+
+      # options facultatives
+      if self.nro_cas in ("03",):
+        hypo.setOptionValue("adaptation", "surface")
+
+      #-- Calcul
+      try :
+        erreur, message = self._calcul (objet_adapt, hypo)
+      except :
+        erreur = 1871
+        message = "Erreur dans le calcul par SMESH"
+
+      break
+
+    return erreur, message
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def _traitement_cas (self ):
+    """Traitement d'un cas
+
+
+Sorties :
+  :erreur: code d'erreur
+  :message: message d'erreur
+    """
+
+    nom_fonction = __name__ + "/_traitement_cas"
+    blabla = "\nDans {} :".format(nom_fonction)
+
+    if self._verbose_max:
+      print (blabla)
+
+# 1. Préalables
+
+    erreur = 0
+    message = ""
+    if self._verbose:
+      print ("Passage du cas '{}'".format(self.nro_cas))
+
+    if ( self.nro_cas in ("01", "02", "03", "04", "05", "06", "07", "08", "10" ,"11" ,"13") ):
+      objet_adapt = smesh.Adaptation('MG_Adapt')
+      erreur, message = self._test_00 (objet_adapt)
+      del objet_adapt
+
+    else:
+      erreur = 1
+      message = "Le cas '{}' est inconnu.".format(self.nro_cas)
+
+    return erreur, message
+
+#===========================  Fin de la méthode ==================================
+
+#=========================== Début de la méthode =================================
+
+  def lancement (self):
+
+    """Lancement
+
+Sorties :
+  :erreur: code d'erreur
+  :message: message d'erreur
+    """
+
+    nom_fonction = __name__ + "/lancement"
+    blabla = "\nDans {} :".format(nom_fonction)
+
+    erreur = 0
+    message = ""
+
+    if self._verbose_max:
+      print (blabla)
+
+    for nom_cas in self.l_cas:
+      self.nro_cas = nom_cas
+      erreur_t, message_t = self._traitement_cas ()
+      if erreur_t:
+        erreur += 1
+        message += "\nErreur n° {} pour le cas {} :\n".format(erreur_t,nom_cas)
+        message += message_t
+
+    if ( erreur and self._verbose_max ):
+      print (blabla, message)
+
+    return erreur, message
+
+#===========================  Fin de la méthode ==================================
+
+#==========================  Fin de la classe ====================================
+
+#==================================================================================
+# Lancement
+#==================================================================================
+
+if __name__ == "__main__" :
+
+# 1. Options
+
+  L_OPTIONS = list()
+  #L_OPTIONS.append("-h")
+  #L_OPTIONS.append("-v")
+  #L_OPTIONS.append("-vmax")
+  L_OPTIONS.append("01")
+  L_OPTIONS.append("02")
+  L_OPTIONS.append("03")
+  L_OPTIONS.append("07")
+  L_OPTIONS.append("10")
+  L_OPTIONS.append("11")
+  L_OPTIONS.append("04")
+  L_OPTIONS.append("05")
+  L_OPTIONS.append("06")
+  L_OPTIONS.append("08")
+  #L_OPTIONS.append("13")
+
+# 2. Lancement de la classe
+
+  #print ("L_OPTIONS :", L_OPTIONS)
+  MGADAPT_TEST = MGAdaptTest(L_OPTIONS)
+  if MGADAPT_TEST.affiche_aide_globale:
+    sys.stdout.write(MGADAPT_TEST.__doc__+"\n")
+  else:
+    ERREUR, MESSAGE_ERREUR = MGADAPT_TEST.lancement()
+    if ERREUR:
+      sys.stdout.write(MGADAPT_TEST.__doc__+"\n")
+      MESSAGE_ERREUR += "\n {} erreur(s)\n".format(ERREUR)
+      sys.stderr.write(MESSAGE_ERREUR)
+      #raise Exception(MESSAGE_ERREUR)
+      assert(False)
+
+  del MGADAPT_TEST
+
+  #sys.exit(0)
--- a/doc/salome/examples/MGAdapt_med_files/test_01.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_01.med
--- a/doc/salome/examples/MGAdapt_med_files/test_02.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_02.med
--- a/doc/salome/examples/MGAdapt_med_files/test_02_bg.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_02_bg.med
--- a/doc/salome/examples/MGAdapt_med_files/test_04.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_04.med
--- a/doc/salome/examples/MGAdapt_med_files/test_06.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_06.med
--- a/doc/salome/examples/MGAdapt_med_files/test_07.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_07.med
--- a/doc/salome/examples/MGAdapt_med_files/test_08.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_08.med
--- a/doc/salome/examples/MGAdapt_med_files/test_08_bg.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_08_bg.med
--- a/doc/salome/examples/MGAdapt_med_files/test_10.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_10.med
--- a/doc/salome/examples/MGAdapt_med_files/test_11.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_11.med
--- a/doc/salome/examples/MGAdapt_med_files/test_13.med
+++ b/doc/salome/examples/MGAdapt_med_files/test_13.med
--- a/doc/salome/examples/tests.set
+++ b/doc/salome/examples/tests.set
@ -45,6 +45,7 @@ SET(BAD_TESTS
  radial_prism_3d_algo.py
  test_smeshplugin_mg_tetra_parallele.py
  test_smeshplugins.py
+  MGAdaptTests_without_session.py
  )

 SET(GOOD_TESTS
--- a/doc/salome/gui/SMESH/images/adaptation_01.png
+++ b/doc/salome/gui/SMESH/images/adaptation_01.png
--- a/doc/salome/gui/SMESH/images/adaptation_02.png
+++ b/doc/salome/gui/SMESH/images/adaptation_02.png
--- a/doc/salome/gui/SMESH/input/adaptation.rst
+++ b/doc/salome/gui/SMESH/input/adaptation.rst
@ -0,0 +1,38 @@
+.. _adaptation_page:
+
+**********
+Adaptation
+**********
+
+Mesh module provides the possibility to perform different adaptations of a mesh.
+
+.. note::
+  A mesh adaptation based on splitting is available by the HOMARD module.
+
+.. _mg_adapt_anchor:
+
+MG_Adapt
+########
+
+For meshes made of triangles and/or tetrahedra, remeshing operations are available with the MG-Adapt plugin. The remeshing is based on wanted mesh sizes defined over the mesh or as a constant. The boundaries are dedeuced from the initial mesh.
+
+To start **Remeshing** operation, select **MG Adapt** tab in **Adaptation** dialog.
+
+.. image:: ../images/adaptation_01.png
+  :align: center
+
+
+* **Mesh In** is the initial mesh to remesh.
+* **Mesh Out** is the resulting mesh after remeshing. By default, the name of the initial mesh is kept and the file name is based on the name of the initial mesh.
+* **Size map definition** is a choice between **Local**, **Background** and **Constant**.
+
+- If the choice is **Background**, the name of the MED file must be given.
+- If the choice is **Local** or **Background**, the name of the field must be selected from the list, together with time step.
+
+.. image:: ../images/adaptation_02.png
+  :align: center
+
+.. note::
+  The exhaustive description of MG-Adapt can be read into its documentation. It can be reached by the general help button.
+
+**See Also** a sample TUI Script of :ref:`tui_adaptation_page`.
--- a/doc/salome/gui/SMESH/input/index.rst
+++ b/doc/salome/gui/SMESH/input/index.rst
@ -23,6 +23,7 @@ Introduction to Mesh module
 * :ref:`creating groups <grouping_elements_page>` of mesh elements;
 * filtering mesh entities (nodes or elements) using :ref:`Filters <filters_page>` functionality for :ref:`creating groups <grouping_elements_page>` and applying :ref:`mesh modifications <modifying_meshes_page>`;
 * :ref:`viewing meshes <viewing_meshes_overview_page>` in the VTK viewer and :ref:`getting info <mesh_infos_page>` on mesh and its sub-objects;
+* :ref:`remeshing meshes <adaptation_page>`;
 * applying to meshes :ref:`Quality Controls <quality_page>`, allowing to highlight important elements;
 * taking various :ref:`measurements <measurements_page>` of the mesh objects.

@ -52,6 +53,7 @@ Mesh module preferences are described in the :ref:`mesh_preferences_page` sectio
   grouping_elements
   about_filters
   about_quality_controls
+   adaptation
   measurements
   viewing_meshes_overview
   smeshpy_interface
--- a/doc/salome/gui/SMESH/input/smeshpy_interface.rst
+++ b/doc/salome/gui/SMESH/input/smeshpy_interface.rst
@ -95,6 +95,7 @@ the following links:
   tui_transforming_meshes
   tui_viewing_meshes
   tui_quality_controls
+   tui_adaptation
   tui_measurements
   tui_work_on_objects_from_gui
   tui_notebook_smesh
--- a/doc/salome/gui/SMESH/input/tui_adaptation.rst
+++ b/doc/salome/gui/SMESH/input/tui_adaptation.rst
@ -0,0 +1,18 @@
+.. _tui_adaptation_page:
+
+**********
+Adaptation
+**********
+
+.. _tui_mg_adapt:
+
+MG_Adapt
+========
+
+.. literalinclude:: ../../../examples/MGAdaptTests_without_session.py
+    :language: python
+
+:download:`Download this script <../../../examples/MGAdaptTests_without_session.py>`
+
+
+**See Also** the GUI :ref:`adaptation_page`.
--- a/idl/CMakeLists.txt
+++ b/idl/CMakeLists.txt
@ -36,6 +36,7 @@ SET(SalomeIDLSMESH_IDLSOURCES
  SMESH_Pattern.idl
  SMESH_MeshEditor.idl
  SMESH_Measurements.idl
+  MG_ADAPT.idl
 )

 SET(_idl_include_dirs
--- a/idl/MG_ADAPT.idl
+++ b/idl/MG_ADAPT.idl
@ -0,0 +1,148 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#ifndef MG_ADAPT_IDL
+#define MG_ADAPT_IDL
+
+#include "SALOME_Component.idl"
+#include "SALOME_Exception.idl"
+#include "SALOME_GenericObj.idl"
+#include "SALOMEDS.idl"
+#include "SMESH_Mesh.idl"
+
+module SMESH
+{
+  struct MgAdaptHypothesisData
+  {
+    string  myFileInDir, myMeshFileIn, myInMeshName, myMeshFileBackground, myOutMeshName,
+            myMeshFileOut, myFileOutDir, myFileSizeMapDir, myFieldName;
+    boolean fromMedFile;
+    boolean myPublish, myMeshOutMed;
+    boolean myUseLocalMap, myUseBackgroundMap, myUseConstantValue;
+    double  myConstantValue;
+    long    myRank, myTimeStep;
+    boolean myUseNoTimeStep, myUseLastTimeStep, myUseChosenTimeStep;
+    string  myWorkingDir, myLogFile;
+    boolean myPrintLogInFile, myKeepFiles, myRemoveLogOnSuccess;
+    long    myVerboseLevel;
+  };
+
+  interface MG_ADAPT : SALOME::GenericObj
+  {
+    void setData(inout MgAdaptHypothesisData data);
+
+    void setMedFileIn(in string MedFileIn);
+    string getMedFileIn();
+
+    void setMedFileOut(in string MedFileOut);
+    string getMedFileOut();
+
+    void setMeshName(in string s);
+    string getMeshName();
+
+    void setMeshNameOut(in string s);
+    string getMeshNameOut();
+
+    void setMeshOutMed(in boolean b);
+    boolean getMeshOutMed();
+
+    void setPublish(in boolean b);
+    boolean getPublish();
+
+    void setSizeMapFieldName(in string s);
+    string getSizeMapFieldName();
+
+    void setTimeStep(in long s);
+    long getTimeStep();
+
+    void setTimeStepRank(in long s, in long f);
+    long getRank();
+
+    void setTimeStepRankLast();
+    void setNoTimeStep();
+
+    void setLogFile(in string f);
+    string getLogFile();
+
+    void setVerbosityLevel(in long f);
+    long getVerbosityLevel();
+
+    void setRemoveOnSuccess(in boolean f);
+    boolean getRemoveOnSuccess();
+
+    MgAdaptHypothesisData getData();
+
+    void setUseLocalMap(in boolean f);
+    boolean getUseLocalMap();
+
+    void setUseBackgroundMap(in boolean f);
+    boolean getUseBackgroundMap();
+
+    void setUseConstantValue(in boolean f);
+    boolean getUseConstantValue();
+
+    void setConstantSize(in double f);
+    double getConstantSize();
+
+    void setSizeMapFile(in string f);
+    string getSizeMapFile();
+
+    void setFromMedFile(in boolean f);
+    boolean isFromMedFile();
+
+    void setKeepWorkingFiles(in boolean f);
+    boolean getKeepWorkingFiles();
+
+    void setPrintLogInFile(in boolean f);
+    boolean getPrintLogInFile();
+
+    void setWorkingDir(in string f);
+    string getWorkingDir();
+
+    void setSizeMapType(in string f);
+    boolean setAll();
+    string getCommandToRun();
+    void compute() raises(SALOME::SALOME_Exception);
+    string getErrMsg();
+    string getFileName();
+    string getExeName();
+    void copyMgAdaptHypothesisData(in MgAdaptHypothesisData f);
+
+    //void checkDirPath(inout string f);
+
+    boolean hasOptionDefined(in string optionName);
+    void setOptionValue(in string optionName, in string optionValue) raises (SALOME::SALOME_Exception);
+    string getOptionValue(in string optionName, inout boolean isDefault) raises (SALOME::SALOME_Exception);
+    SMESH::string_array getCustomOptionValuesStrVec();
+    SMESH::string_array getOptionValuesStrVec();
+  };
+
+  typedef MG_ADAPT MG_ADAPT_HYPOTHESIS;
+  interface MG_ADAPT_OBJECT : SALOME::GenericObj
+  {
+    void setMeshIn(in SMESH_Mesh theMesh)    raises (SALOME::SALOME_Exception);
+    void setMEDFileIn(in string f)           raises (SALOME::SALOME_Exception);
+    void setMEDFileOut(in string f)          raises (SALOME::SALOME_Exception);
+    void setMEDFileBackground(in string f)   raises (SALOME::SALOME_Exception);
+    void AddHypothesis(in MG_ADAPT mg)       raises (SALOME::SALOME_Exception);
+    long Compute(in boolean Publish)         raises (SALOME::SALOME_Exception);
+  };
+};
+
+#endif // MG_ADAPT_IDL
--- a/idl/SMESH_Gen.idl
+++ b/idl/SMESH_Gen.idl
@ -43,6 +43,8 @@ module SMESH
  interface FilterManager;
  interface SMESH_Pattern;
  interface Measurements;
+  interface MG_ADAPT;
+  interface MG_ADAPT_OBJECT;

  /*!
   * Tags definition
@ -584,7 +586,9 @@ module SMESH
 			  in GEOM::GEOM_Object theGeom,
 			  in double theTolerance );    

-
+    MG_ADAPT CreateMG_ADAPT();
+    MG_ADAPT_OBJECT Adaptation(in string adaptType);
+    MG_ADAPT CreateAdaptationHypothesis();
  };

 };
--- a/resources/CMakeLists.txt
+++ b/resources/CMakeLists.txt
@ -22,6 +22,7 @@

 SET(SMESH_RESOURCES_FILES
  ModuleMesh.png
+  adapt_mg_adapt.png
  advanced_mesh_info.png
  bare_border_face.png
  bare_border_volume.png
--- a/resources/SalomeApp.xml.in
+++ b/resources/SalomeApp.xml.in
@ -98,6 +98,11 @@
    <parameter name="vol_precision"                value="-6"  />
    <parameter name="selection_increment"          value="0"  />
    <parameter name="controls_increment"           value="2"  />
+    <!-- Adaptation -->
+    <parameter name="mg_adapt_file_mesh_out"       value="true"  />
+    <parameter name="mg_adapt_publish_mesh_out"    value="false"  />
+    <parameter name="mg_adapt_size_map"            value="Local"  />
+    <parameter name="mg_adapt_time_step"           value="None"  />
  </section>
  <section name="smesh_help" >
    <parameter name="User's Guide/Mesh module/User's Guide"      value="%SMESH_ROOT_DIR%/share/doc/salome/gui/SMESH/index.html;;http://docs.salome-platform.org/latest/gui/SMESH/index.html"/>
@ -106,6 +111,9 @@
    <parameter name="User's Guide/Mesh module/Plug-ins/MacMesh plugin" value="%SMESH_ROOT_DIR%/share/doc/salome/gui/SMESH/MacMesh/index.html;;http://docs.salome-platform.org/latest/gui/SMESH/MacMesh/index.html"/>
    <parameter name="User's Guide/Mesh module/Plug-ins/blocFissure plugin" value="%SMESH_ROOT_DIR%/share/doc/salome/gui/SMESH/blocFissure/index.html;;http://docs.salome-platform.org/latest/gui/SMESH/blocFissure/index.html"/>
    <parameter name="User's Guide/Mesh module/Plug-ins/SpherePadder plugin" value="%SMESH_ROOT_DIR%/share/doc/salome/gui/SMESH/padder/index.html;;http://docs.salome-platform.org/latest/gui/SMESH/padder/index.html"/>
+    <parameter name="User's Guide/Mesh module/MG-Adapt plugin/User's Guide" value="%SMESH_ROOT_DIR%/share/doc/salome/gui/SMESH/index.html#adaptation;;http://docs.salome-platform.org/latest/gui/SMESH/index.html#adaptation"/>
+    <parameter name="User's Guide/Mesh module/MG-Adapt plugin/Reference"    value="%MESHGEMS_ROOT_DIR%/Docs/mg-adapt_api_manual.pdf"/>
+    <parameter name="User's Guide/Mesh module/MG-Adapt plugin/Manual"       value="%MESHGEMS_ROOT_DIR%/Docs/mg-adapt_user_manual.pdf"/>
    <parameter name="User's Guide/Mesh module/MGCleaner plugin/User's Guide" value="%SMESH_ROOT_DIR%/share/doc/salome/gui/SMESH/MGCleaner/index.html;;http://docs.salome-platform.org/latest/gui/SMESH/MGCleaner/index.html"/>
    <parameter name="User's Guide/Mesh module/MGCleaner plugin/Reference"    value="%MESHGEMS_ROOT_DIR%/Docs/mg-cleaner_api_manual.pdf"/>
    <parameter name="User's Guide/Mesh module/MGCleaner plugin/Manual"       value="%MESHGEMS_ROOT_DIR%/Docs/mg-cleaner_user_manual.pdf"/>
--- a/resources/adapt_mg_adapt.png
+++ b/resources/adapt_mg_adapt.png
--- a/src/SMESH/CMakeLists.txt
+++ b/src/SMESH/CMakeLists.txt
@ -38,6 +38,7 @@ INCLUDE_DIRECTORIES(
  ${PROJECT_SOURCE_DIR}/src/SMDS
  ${PROJECT_SOURCE_DIR}/src/SMESHDS
  ${PROJECT_SOURCE_DIR}/src/SMESHUtils
+  ${MEDCOUPLING_INCLUDE_DIRS}
 )

 # additional preprocessor / compiler flags
@ -67,6 +68,7 @@ SET(_link_LIBRARIES
  MeshDriverUNV
  MeshDriverGMF
  ${DriverCGNS_LIB}
+  ${MEDCoupling_medloader}
 )

 # --- headers ---
@ -86,6 +88,7 @@ SET(SMESHimpl_HEADERS
  SMESH_MesherHelper.hxx
  SMESH_ProxyMesh.hxx
  SMESH_SMESH.hxx
+  MG_ADAPT.hxx
 )

 # --- sources ---
@ -104,6 +107,7 @@ SET(SMESHimpl_SOURCES
  SMESH_HypoFilter.cxx
  SMESH_ProxyMesh.cxx
  SMESH_MesherHelper.cxx
+  MG_ADAPT.cxx
 )

 # --- rules ---
@ -111,6 +115,7 @@ SET(SMESHimpl_SOURCES
 ADD_LIBRARY(SMESHimpl ${SMESHimpl_SOURCES})
 IF(WIN32)
  TARGET_COMPILE_OPTIONS(SMESHimpl PRIVATE /bigobj)
+  ADD_DEFINITIONS(-DNOMINMAX) 
 ENDIF(WIN32)

 TARGET_LINK_LIBRARIES(SMESHimpl ${_link_LIBRARIES} )
--- a/src/SMESH/MG_ADAPT.cxx
+++ b/src/SMESH/MG_ADAPT.cxx
--- a/src/SMESH/MG_ADAPT.hxx
+++ b/src/SMESH/MG_ADAPT.hxx
@ -0,0 +1,278 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#ifndef MG_ADAPT_HXX
+#define MG_ADAPT_HXX
+
+#include <string>
+#include <map>
+#include <vector>
+#include <set>
+
+#include "SMESH_SMESH.hxx"
+
+namespace MEDCoupling
+{
+  class MEDFileMesh;
+}
+
+namespace MG_ADAPT
+{
+typedef std::map< std::string, std::string > TOptionValues;
+typedef std::set< std::string > TOptionNames;
+
+std::string remove_extension(const std::string& filename);
+
+struct MgAdaptHypothesisData
+{
+  std::string myFileInDir, myMeshFileIn, myInMeshName, myMeshFileBackground, myOutMeshName,
+              myMeshFileOut, myFileOutDir, myFileSizeMapDir, myFieldName;
+  bool fromMedFile;
+  bool myPublish, myMeshOutMed;
+  bool myUseLocalMap, myUseBackgroundMap, myUseConstantValue;
+  double myConstantValue;
+  int  myRank, myTimeStep;
+  bool myUseNoTimeStep, myUseLastTimeStep, myUseChosenTimeStep;
+  std::string myWorkingDir, myLogFile;
+  bool myPrintLogInFile, myKeepFiles, myRemoveLogOnSuccess;
+  int myVerboseLevel;
+};
+
+
+class SMESH_EXPORT MgAdapt
+{
+
+public:
+
+  MgAdapt();
+  MgAdapt(MgAdaptHypothesisData*);
+  MgAdapt(const MgAdapt&);
+  ~MgAdapt();
+  void buildModel();
+  void setData( MgAdaptHypothesisData* data);
+
+  void setMedFileIn(std::string fileName);
+  std::string getMedFileIn();
+
+  void setMedFileOut(std::string fileOut);
+  std::string getMedFileOut();
+
+  void setMeshName(std::string name);
+  std::string getMeshName();
+
+  void setMeshNameOut(std::string  name);
+  std::string getMeshNameOut();
+
+  void setMeshOutMed(bool mybool);
+  bool getMeshOutMed();
+
+  void setPublish(bool mybool);
+  bool getPublish();
+
+  void setFieldName(std::string myFieldName);
+  std::string getFieldName();
+
+  void setTimeStep(int time);
+  int getTimeStep() const;
+
+  void setRankTimeStep(int time, int myRank);
+  int getRank();
+
+  void setTimeStepRankLast();
+  void setNoTimeStep();
+  void setChosenTimeStepRank();
+  void updateTimeStepRank();
+
+  void setLogFile(std::string);
+  std::string getLogFile();
+
+  void setVerbosityLevel(int verbosity);
+  int getVerbosityLevel();
+
+  void setRemoveOnSuccess(bool mybool);
+  bool getRemoveOnSuccess();
+
+  MgAdaptHypothesisData* getData() const;
+
+  void setUseLocalMap(bool mybool);
+  bool getUseLocalMap();
+
+  void setUseBackgroundMap(bool mybool);
+  bool getUseBackgroundMap();
+
+  void setUseConstantValue(bool mybool);
+  bool getUseConstantValue();
+
+  void setConstantValue(double cnst);
+  double getConstantValue() const;
+
+  void setSizeMapFile(std::string mapFile);
+  std::string getSizeMapFile();
+
+  void setFromMedFile(bool mybool);
+  bool isFromMedFile();
+
+  void setKeepWorkingFiles(bool mybool);
+  bool getKeepWorkingFiles();
+
+  void setPrintLogInFile(bool mybool);
+  bool getPrintLogInFile();
+
+  void setWorkingDir(std::string dir);
+  std::string getWorkingDir() const;
+
+
+  bool setAll();
+  static std::string getCommandToRun(MgAdapt* );
+  std::string getCommandToRun() ;
+  int compute(std::string& errStr);
+  std::string getFileName() const;
+  static std::string getExeName();
+  void copyMgAdaptHypothesisData( const MgAdaptHypothesisData* from) ;
+
+  void checkDirPath(std::string& dirPath);
+
+  bool hasOptionDefined( const std::string& optionName ) const;
+  void setOptionValue(const std::string& optionName,
+                      const std::string& optionValue);
+  std::string getOptionValue(const std::string& optionName,
+                              bool*              isDefault=0) const;
+  std::vector <std::string> getCustomOptionValuesStrVec() const;
+  std::vector <std::string> getOptionValuesStrVec() const;
+
+
+  TOptionValues        getOptionValues()       const;
+  const TOptionValues& getCustomOptionValues() const ;
+  static double toDbl(const std::string&, bool* isOk = 0);
+  static bool toBool(const std::string&, bool* isOk = 0);
+  static int toInt(const std::string&, bool* isOk = 0 );
+  static std::string toLowerStr(const std::string& str);
+
+  /*  default values */
+  static std::string defaultWorkingDirectory();
+  static std::string defaultLogFile();
+  static bool  defaultKeepFiles();
+  static bool  defaultRemoveLogOnSuccess();
+  static int   defaultVerboseLevel();
+  static bool  defaultPrintLogInFile();
+  static bool  defaultFromMedFile();
+  static bool  defaultMeshOutMed();
+  static bool  defaultPublish();
+  static bool  defaultUseLocalMap();
+  static bool  defaultUseBackgroundMap();
+  static bool  defaultUseConstantValue();
+  static bool  defaultUseNoTimeStep();
+  static bool  defaultUseLastTimeStep();
+  static bool  defaultUseChosenTimeStep();
+  static double  defaultMaximumMemory();
+
+  enum Status {
+    DRS_OK,
+    DRS_EMPTY,          // a file contains no mesh with the given name
+    DRS_WARN_RENUMBER,  // a file has overlapped ranges of element numbers,
+    // so the numbers from the file are ignored
+    DRS_WARN_SKIP_ELEM, // some elements were skipped due to incorrect file data
+    DRS_WARN_DESCENDING, // some elements were skipped due to descending connectivity
+    DRS_FAIL,            // general failure (exception etc.)
+    DRS_NO_TIME_STEP            // general failure (exception etc.)
+  };
+
+  struct group
+  {
+    std::string              _name;
+    std::vector<int>         _famListId;
+    std::vector<std::string> _famNames;
+    group(std::string name, std::vector<int> famListId, std::vector<std::string> famNames)
+      :_name(name), _famListId( famListId ), _famNames( famNames ) {}
+  };
+
+  struct family
+  {
+    std::string _famName;
+    int         _famId;
+    family(std::string famName, int famId):_famName(famName), _famId(famId) {}
+  };
+
+
+private :
+  bool fromMedFile;
+  std::string medFileIn;
+  std::string medFileOut;
+  std::string meshName;
+  std::string meshNameOut;
+  bool publish, meshOutMed;
+  bool useLocalMap, useBackgroundMap, useConstantValue;
+  bool myUseLastTimeStep, myUseNoTimeStep, myUseChosenTimeStep;
+  std::string sizeMapFile;
+  std::string fieldName;
+  double constantValue;
+  int rank,  timeStep;
+
+  /* advanced options */
+
+
+  std::string logFile;
+  std::string workingDir;
+  int verbosityLevel;
+  bool removeOnSuccess;
+  bool toKeepWorkingFiles;
+  bool printLogInFile;
+
+  /* Model DATA */
+  MgAdaptHypothesisData* data;
+
+  /*            */
+
+  TOptionValues _option2value, _customOption2value;         // user defined values
+  TOptionValues _defaultOptionValues;                       // default values
+  TOptionNames  _doubleOptions, _charOptions, _boolOptions; // to find a type of option
+
+  std::vector <std::string> _myErrorMessages;
+  Status _myStatus;
+  std::string meshFormatOutputMesh;
+  std::vector< std::string> solFormatOutput;
+  std::vector <group> groupVec;
+  std::vector <family> famVec;
+  std::vector< std::string> tmpFilesToBeDeleted;
+
+  /* convert MED-->.mesh format */
+  void convertMedFile(std::string& meshIn,std::string& solFileIn,  std::string& sizeMapIn)  ;
+  void storeGroups(MEDCoupling::MEDFileMesh* fileMesh);
+  void restoreGroups(MEDCoupling::MEDFileMesh* fileMesh) const;
+  void storefams(MEDCoupling::MEDFileMesh* fileMesh);
+  void restorefams(MEDCoupling::MEDFileMesh* fileMesh) const;
+  void storeGroupsAndFams(MEDCoupling::MEDFileMesh* fileMesh);
+  void restoreGroupsAndFams(MEDCoupling::MEDFileMesh* fileMesh) const;
+  void convertMeshFile(std::string& meshFormatIn, std::vector< std::string>& solFieldFileNames) const ;
+  void buildConstantSizeMapSolFile(const std::string& solFormatFieldFileName, const int dim, const int version, const size_t nbNodes) const;
+  void buildBackGroundMeshAndSolFiles(const std::vector<std::string>& fieldFileNames, const std::string& meshFormatsizeMapFile) const;
+  Status addMessage(const std::string& msg, const bool isFatal = false);
+  void execCmd( const char* cmd, int& err);
+  void cleanUp();
+  void appendMsgToLogFile(std::string& msg);
+  std::vector<std::string> getListFieldsNames(std::string fileIn) ;
+  void checkDimensionOptionAdaptation() ;
+  void checkFieldName(std::string fileIn) ;
+  void checkTimeStepRank(std::string fileIn) ;
+
+};
+
+} // namespace MG_ADAPT
+
+#endif // MG_ADAPT_HXX
--- a/src/SMESHGUI/CMakeLists.txt
+++ b/src/SMESHGUI/CMakeLists.txt
@ -147,6 +147,8 @@ SET(_moc_HEADERS
  SMESHGUI_SplitBiQuad.h
  SMESHGUI_IdPreview.h
  SMESHGUI_PreVisualObj.h
+  SMESHGUI_MG_ADAPTDRIVER.h
+  SMESHGUI_MgAdaptDlg.h
 )

 # header files / no moc processing
@ -262,6 +264,8 @@ SET(_other_SOURCES
  SMESHGUI_SplitBiQuad.cxx
  SMESHGUI_PreVisualObj.cxx
  SMESHGUI_IdPreview.cxx
+  SMESHGUI_MG_ADAPTDRIVER.cxx
+  SMESHGUI_MgAdaptDlg.cxx
 )

 # sources / to compile
--- a/src/SMESHGUI/SMESHGUI.cxx
+++ b/src/SMESHGUI/SMESHGUI.cxx
@ -60,6 +60,7 @@
 #include "SMESHGUI_GroupUtils.h"
 #include "SMESHGUI_Hypotheses.h"
 #include "SMESHGUI_HypothesesUtils.h"
+#include "SMESHGUI_MG_ADAPTDRIVER.h"
 #include "SMESHGUI_Make2DFrom3DOp.h"
 #include "SMESHGUI_MakeNodeAtPointDlg.h"
 #include "SMESHGUI_Measurements.h"
@ -167,22 +168,22 @@
 #include <vtkRenderer.h>

 // SALOME KERNEL includes
+#include <Basics_Utils.hxx>
 #include <SALOMEDSClient_ClientFactory.hxx>
 #include <SALOMEDSClient_IParameters.hxx>
 #include <SALOMEDSClient_SComponent.hxx>
 #include <SALOMEDSClient_StudyBuilder.hxx>
-#include <SALOMEDS_Study.hxx>
 #include <SALOMEDS_SObject.hxx>
-#include "utilities.h"
+#include <SALOMEDS_Study.hxx>
+#include <SALOME_GenericObj_wrap.hxx>
 #include <SALOME_LifeCycleCORBA.hxx>
+#include <utilities.h>

 // OCCT includes
 #include <Standard_ErrorHandler.hxx>
 #include <NCollection_DataMap.hxx>
 #include <NCollection_DoubleMap.hxx>

-#include <Basics_Utils.hxx>
-
 // Below macro, when uncommented, switches on simplified (more performant) algorithm
 // of auto-color picking up
 #define SIMPLE_AUTOCOLOR
@ -3042,6 +3043,21 @@ bool SMESHGUI::OnGUIEvent( int theCommandID )
      }
      break;
    }
+  // Adaptation - begin
+#ifndef DISABLE_MG_ADAPT
+  case SMESHOp::OpMGAdapt:
+    {
+      if ( isStudyLocked() )
+        break;
+      EmitSignalDeactivateDialog();
+
+      SALOME::GenericObj_wrap< SMESH::MG_ADAPT > model = GetSMESHGen()->CreateMG_ADAPT();
+      bool isCreation = false;
+      ( new SMESHGUI_MG_ADAPTDRIVER( this, model, isCreation ))->show();
+      break;
+    }
+#endif
+  // Adaptation - end
  case SMESHOp::OpSplitBiQuadratic:
  case SMESHOp::OpConvertMeshToQuadratic:
  case SMESHOp::OpCreateBoundaryElements: // create 2D mesh from 3D
@ -4279,6 +4295,12 @@ void SMESHGUI::initialize( CAM_Application* app )
  createSMESHAction( SMESHOp::OpAutoColor,        "AUTO_COLOR" );
  createSMESHAction( SMESHOp::OpDisableAutoColor, "DISABLE_AUTO_COLOR" );

+  // Adaptation - begin
+#ifndef DISABLE_MG_ADAPT
+  createSMESHAction( SMESHOp::OpMGAdapt, "MG_ADAPT", "ICON_MG_ADAPT" );
+#endif
+  // Adaptation - end
+
  createSMESHAction( SMESHOp::OpMinimumDistance,  "MEASURE_MIN_DIST", "ICON_MEASURE_MIN_DIST" );
  createSMESHAction( SMESHOp::OpBoundingBox,      "MEASURE_BND_BOX",  "ICON_MEASURE_BND_BOX" );
  createSMESHAction( SMESHOp::OpPropertiesLength, "MEASURE_LENGTH",   "ICON_MEASURE_LENGTH" );
@ -4320,6 +4342,9 @@ void SMESHGUI::initialize( CAM_Application* app )
      meshId    = createMenu( tr( "MEN_MESH" ),    -1, 70, 10 ),
      ctrlId    = createMenu( tr( "MEN_CTRL" ),    -1, 60, 10 ),
      modifyId  = createMenu( tr( "MEN_MODIFY" ),  -1, 40, 10 ),
+#ifndef DISABLE_MG_ADAPT
+      adaptId   = createMenu( tr( "MEN_ADAPT" ),   -1, 80, 10 ),
+#endif
      measureId = createMenu( tr( "MEN_MEASURE" ), -1, 50, 10 ),
      viewId    = createMenu( tr( "MEN_VIEW" ),    -1,  2 );

@ -4492,6 +4517,12 @@ void SMESHGUI::initialize( CAM_Application* app )
  createMenu( SMESHOp::OpSmoothing,              modifyId, -1 );
  createMenu( SMESHOp::OpPatternMapping,         modifyId, -1 );

+  // Adaptation - begin
+#ifndef DISABLE_MG_ADAPT
+  createMenu( SMESHOp::OpMGAdapt, adaptId, -1 );
+#endif
+  // Adaptation - end
+
  createMenu( SMESHOp::OpMinimumDistance,  measureId,   -1 );
  createMenu( SMESHOp::OpBoundingBox,      measureId,   -1 );
  createMenu( SMESHOp::OpAngle,            measureId,   -1 );
@ -4506,22 +4537,7 @@ void SMESHGUI::initialize( CAM_Application* app )
  connect( volumeMenu, SIGNAL( aboutToShow() ), this, SLOT( onUpdateControlActions() ) );

  // ----- create toolbars --------------
-  int meshTb       = createTool( tr( "TB_MESH" ),      QString( "SMESHMeshToolbar" ) ),
-      info         = createTool( tr( "TB_INFO" ),      QString( "SMESHInformationToolbar" ) ),
-      groupTb      = createTool( tr( "TB_GROUP" ),     QString( "SMESHGroupToolbar" ) ),
-      ctrl0dTb     = createTool( tr( "TB_CTRL0D" ),    QString( "SMESHNodeControlsToolbar" ) ),
-      ctrl1dTb     = createTool( tr( "TB_CTRL1D" ),    QString( "SMESHEdgeControlsToolbar" ) ),
-      ctrl2dTb     = createTool( tr( "TB_CTRL2D" ),    QString( "SMESHFaceControlsToolbar" ) ),
-      ctrl3dTb     = createTool( tr( "TB_CTRL3D" ),    QString( "SMESHVolumeControlsToolbar" ) ),
-      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" ) ),
-      modifyTb     = createTool( tr( "TB_MODIFY" ),    QString( "SMESHModificationToolbar" ) ),
-      measuremTb   = createTool( tr( "TB_MEASUREM" ),  QString( "SMESHMeasurementsToolbar" ) ),
-      dispModeTb   = createTool( tr( "TB_DISP_MODE" ), QString( "SMESHDisplayModeToolbar" ) );
-
+  int meshTb = createTool( tr( "TB_MESH" ), QString( "SMESHMeshToolbar" ) ) ;
  createTool( SMESHOp::OpCreateMesh,        meshTb );
  createTool( SMESHOp::OpCreateSubMesh,     meshTb );
  createTool( SMESHOp::OpEditMeshOrSubMesh, meshTb );
@ -4533,25 +4549,30 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpEvaluate,          meshTb );
  createTool( SMESHOp::OpMeshOrder,         meshTb );

+  int infoTb = createTool( tr( "TB_INFO" ), QString( "SMESHInformationToolbar" ) ) ;
+  createTool( SMESHOp::OpMeshInformation,    infoTb );
+  //createTool( SMESHOp::OpStdInfo, meshTb );
+  //createTool( SMESHOp::OpWhatIs, meshTb ); // VSR: issue #0021242 (eliminate "Mesh Element Information" command)
+  createTool( SMESHOp::OpFindElementByPoint, infoTb );
+
+  int groupTb = createTool( tr( "TB_GROUP" ), QString( "SMESHGroupToolbar" ) ) ;
  createTool( SMESHOp::OpCreateGroup,         groupTb );
  createTool( SMESHOp::OpCreateGeometryGroup, groupTb );
  createTool( SMESHOp::OpConstructGroup,      groupTb );
  createTool( SMESHOp::OpEditGroup,           groupTb );

-  createTool( SMESHOp::OpMeshInformation,    info );
-  //createTool( SMESHOp::OpStdInfo, meshTb );
-  //createTool( SMESHOp::OpWhatIs, meshTb ); // VSR: issue #0021242 (eliminate "Mesh Element Information" command)
-  createTool( SMESHOp::OpFindElementByPoint, info );
-
+  int ctrl0dTb = createTool( tr( "TB_CTRL0D" ), QString( "SMESHNodeControlsToolbar" ) ) ;
  createTool( SMESHOp::OpFreeNode,  ctrl0dTb );
  createTool( SMESHOp::OpEqualNode, ctrl0dTb );
  //createTool( SMESHOp::OpNodeConnectivityNb, ctrl0dTb );

+  int ctrl1dTb = createTool( tr( "TB_CTRL1D" ), QString( "SMESHEdgeControlsToolbar" ) ) ;
  createTool( SMESHOp::OpFreeBorder, ctrl1dTb );
  createTool( SMESHOp::OpLength,     ctrl1dTb );
  createTool( SMESHOp::OpConnection, ctrl1dTb );
  createTool( SMESHOp::OpEqualEdge,  ctrl1dTb );

+  int ctrl2dTb = createTool( tr( "TB_CTRL2D" ), QString( "SMESHFaceControlsToolbar" ) ) ;
  createTool( SMESHOp::OpFreeEdge,            ctrl2dTb );
  createTool( SMESHOp::OpFreeFace,            ctrl2dTb );
  createTool( SMESHOp::OpBareBorderFace,      ctrl2dTb );
@ -4568,6 +4589,7 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpEqualFace,           ctrl2dTb );
  createTool( SMESHOp::OpDeflection2D,        ctrl2dTb );

+  int ctrl3dTb = createTool( tr( "TB_CTRL3D" ), QString( "SMESHVolumeControlsToolbar" ) ) ;
  createTool( SMESHOp::OpAspectRatio3D,         ctrl3dTb );
  createTool( SMESHOp::OpVolume,                ctrl3dTb );
  createTool( SMESHOp::OpMaxElementLength3D,    ctrl3dTb );
@ -4575,6 +4597,7 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpOverConstrainedVolume, ctrl3dTb );
  createTool( SMESHOp::OpEqualVolume,           ctrl3dTb );

+  int addElemTb = createTool( tr( "TB_ADD" ), QString( "SMESHAddElementToolbar" ) ) ;
  createTool( SMESHOp::OpNode,              addElemTb );
  createTool( SMESHOp::OpElem0D,            addElemTb );
  createTool( SMESHOp::OpElem0DOnElemNodes, addElemTb );
@ -4590,6 +4613,7 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpHexagonalPrism,    addElemTb );
  createTool( SMESHOp::OpPolyhedron,        addElemTb );

+  int addNonElemTb = createTool( tr( "TB_ADDNON" ), QString( "SMESHAddElementToolbar" ) ) ;
  createTool( SMESHOp::OpQuadraticEdge,          addNonElemTb );
  createTool( SMESHOp::OpQuadraticTriangle,      addNonElemTb );
  createTool( SMESHOp::OpBiQuadraticTriangle,    addNonElemTb );
@ -4603,14 +4627,17 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpQuadraticHexahedron,    addNonElemTb );
  createTool( SMESHOp::OpTriQuadraticHexahedron, addNonElemTb );

+  int remTb = createTool( tr( "TB_REM" ), QString( "SMESHRemoveToolbar" ) ) ;
  createTool( SMESHOp::OpRemoveNodes,       remTb );
  createTool( SMESHOp::OpRemoveElements,    remTb );
  createTool( SMESHOp::OpRemoveOrphanNodes, remTb );
  createTool( SMESHOp::OpClearMesh,         remTb );

+//   int renumbTb     = createTool( tr( "TB_RENUMBER" ),  QString( "SMESHRenumberingToolbar" ) ) ;
  //createTool( SMESHOp::OpRenumberingNodes,    renumbTb );
  //createTool( SMESHOp::OpRenumberingElements, renumbTb );

+  int transformTb = createTool( tr( "TB_TRANSFORM" ), QString( "SMESHTransformationToolbar" ) ) ;
  createTool( SMESHOp::OpMergeNodes,     transformTb );
  createTool( SMESHOp::OpMergeElements,  transformTb );
  createTool( SMESHOp::OpTranslation,    transformTb );
@ -4621,6 +4648,7 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpSewing,         transformTb );
  createTool( SMESHOp::OpDuplicateNodes, transformTb );

+  int modifyTb = createTool( tr( "TB_MODIFY" ), QString( "SMESHModificationToolbar" ) ) ;
  createTool( SMESHOp::OpConvertMeshToQuadratic, modifyTb );
  createTool( SMESHOp::OpCreateBoundaryElements, modifyTb );
  createTool( SMESHOp::OpExtrusion,              modifyTb );
@ -4638,8 +4666,17 @@ void SMESHGUI::initialize( CAM_Application* app )
  createTool( SMESHOp::OpSmoothing,              modifyTb );
  createTool( SMESHOp::OpPatternMapping,         modifyTb );

+  // Adaptation - begin
+#ifndef DISABLE_MG_ADAPT
+  int adaptTb = createTool( tr( "TB_ADAPTATION" ), QString( "SMESHAdaptationToolbar" ) ) ;
+  createTool( SMESHOp::OpMGAdapt, adaptTb );
+#endif
+  // Adaptation - end
+
+  int measuremTb = createTool( tr( "TB_MEASUREM" ), QString( "SMESHMeasurementsToolbar" ) ) ;
  createTool( SMESHOp::OpMinimumDistance, measuremTb );

+  int dispModeTb = createTool( tr( "TB_DISP_MODE" ), QString( "SMESHDisplayModeToolbar" ) );
  createTool( SMESHOp::OpUpdate, dispModeTb );

  QString lc = "$";        // VSR : instead of QtxPopupSelection::defEquality();
@ -4715,9 +4752,14 @@ void SMESHGUI::initialize( CAM_Application* app )
  popupMgr()->insert( separator(), -1, 0 );
  createPopupItem( SMESHOp::OpConvertMeshToQuadratic, OB, mesh_submesh, "&& " + hasElems );
  createPopupItem( SMESHOp::OpCreateBoundaryElements, OB, mesh_group, "&& selcount=1 && dim>=2");
-  //popupMgr()->insert( separator(), -1, 0 );

-  //popupMgr()->insert( separator(), -1, 0 );
+  // Adaptation - begin
+#ifndef DISABLE_MG_ADAPT
+  popupMgr()->insert( separator(), -1, 0 );
+  createPopupItem( SMESHOp::OpMGAdapt, OB, mesh );
+  popupMgr()->insert( separator(), -1, 0 );
+#endif
+  // Adaptation - end

  QString only_one_non_empty = QString( " && %1=1 && numberOfNodes>0" ).arg( dc );
  QString multiple_non_empty = QString( " && %1>0 && numberOfNodes>0" ).arg( dc );
@ -5751,6 +5793,30 @@ void SMESHGUI::createPreferences()
  setPreferenceProperty( coloringType, "indexes", indices );
  addPreference( tr( "SMESH_DISTRIBUTION_COLOR" ), distributionGr, LightApp_Preferences::Color, "SMESH", "distribution_color" );

+  // Adaptation - begin
+#ifndef DISABLE_MG_ADAPT
+  // Adaptation tab ------------------------------------------------------------------------
+  int adaptTab = addPreference( tr( "ADAPT_PREF_TAB_GENERAL" ) );
+  int bloc, pref ;
+  // MG-Adapt
+  bloc = addPreference( tr( "ADAPT_PREF_MG_ADAPT" ), adaptTab );
+  setPreferenceProperty( bloc, "columns", 1 );
+  pref = addPreference( tr( "ADAPT_PREF_MG_ADAPT_FILE_MAILLAGE_OUT" ), bloc, LightApp_Preferences::Bool, "HOMARD", "mg_adapt_file_mesh_out" );
+  pref = addPreference( tr( "ADAPT_PREF_MG_ADAPT_PUBLICATION_MAILLAGE_OUT" ), bloc, LightApp_Preferences::Bool, "HOMARD", "mg_adapt_publish_mesh_out" );
+  pref = addPreference( tr( "ADAPT_PREF_MG_ADAPT_SIZE_MAP" ), bloc, LightApp_Preferences::Selector, "HOMARD", "mg_adapt_size_map" );
+  QStringList aListOfSizeMap;
+  aListOfSizeMap << tr( "ADAPT_PREF_MG_ADAPT_SIZE_MAP_LOCAL" );
+  aListOfSizeMap << tr( "ADAPT_PREF_MG_ADAPT_SIZE_MAP_BACKGROUND" );
+  aListOfSizeMap << tr( "ADAPT_PREF_NONE" );;
+  setPreferenceProperty( pref, "strings", aListOfSizeMap );
+  pref = addPreference( tr( "ADAPT_PREF_MG_ADAPT_TIME_STEP" ), bloc, LightApp_Preferences::Selector, "HOMARD", "mg_adapt_time_step" );
+  QStringList aListOfTimeStep;
+  aListOfTimeStep << tr( "ADAPT_PREF_NONE" );
+  aListOfTimeStep << tr( "ADAPT_PREF_MG_ADAPT_TIME_STEP_LAST" );
+  aListOfTimeStep << tr( "ADAPT_PREF_MG_ADAPT_TIME_STEP_C" );;
+  setPreferenceProperty( pref, "strings", aListOfTimeStep );
+#endif
+  // Adaptation - end
 }

 void SMESHGUI::preferencesChanged( const QString& sect, const QString& name )
--- a/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.cxx
+++ b/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.cxx
@ -0,0 +1,428 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#include "SMESHGUI_MG_ADAPTDRIVER.h"
+
+#include "SMESHGUI.h"
+#include "SMESHGUI_VTKUtils.h"
+#include "SMESHGUI_MeshUtils.h"
+#include "SMESH_TryCatch.hxx"
+
+#include <LightApp_SelectionMgr.h>
+#include <SUIT_Application.h>
+#include <SUIT_Desktop.h>
+#include <SUIT_MessageBox.h>
+#include <SUIT_Session.h>
+#include <SVTK_ViewWindow.h>
+#include <SalomeApp_Application.h>
+
+#include <QLineEdit>
+#include <QRadioButton>
+#include <QKeyEvent>
+
+// SALOME KERNEL includes
+
+const int SPACING = 6; // layout spacing
+const int MARGIN  = 9; // layout margin
+
+// bool createMgAdaptObject(MgAdapt *myMgAdapt )
+// {
+//   // SMESH::SMESH_Mesh_var newMesh = SMESHGUI::GetSMESHGen()->CreateEmptyMesh();
+
+//   // _PTR(SObject) aHypothesis;
+//   _PTR(Study) aStudy = SMESH::getStudy();
+//   QStringList anEntryList;
+//   _PTR(StudyBuilder) aBuilder = aStudy->NewBuilder();
+//   _PTR(SComponent) mgadapt = aStudy->FindComponent("MG-ADAPT");
+//   _PTR(GenericAttribute) ga;
+//   if (!aBuilder->FindAttribute(mgadapt, ga, "AttributeName") )
+//   {
+//     mgadapt = aBuilder->NewComponent("MG-ADAPT");
+//     _PTR(AttributeName) Name = aBuilder->FindOrCreateAttribute(mgadapt, "AttributeName");
+//     Name->SetValue("MG-ADAPT");
+//     _PTR(AttributePixMap) myPixmap = aBuilder->FindOrCreateAttribute( mgadapt, "AttributePixMap" );
+//     myPixmap->SetPixMap( "ICON_MG_ADAPT" );
+//     anEntryList.append( mgadapt->GetID().c_str() );
+//   }
+
+//   _PTR(SObject) obj = aBuilder->NewObject(mgadapt);
+//   _PTR(AttributeName) myName = aBuilder->FindOrCreateAttribute(obj, "AttributeName");
+//   myName->SetValue("hypo");
+//   _PTR(AttributePixMap) aPixmap = aBuilder->FindOrCreateAttribute( obj, "AttributePixMap" );
+//   aPixmap->SetPixMap( "ICON_SMESH_TREE_HYPO" );
+//   anEntryList.append( obj->GetID().c_str() );
+
+//   SMESHGUI::GetSMESHGUI()->updateObjBrowser();
+
+//   // // browse to the published meshes
+//   if( LightApp_Application* anApp =
+//               dynamic_cast<LightApp_Application*>( SUIT_Session::session()->activeApplication() ) )
+//       anApp->browseObjects( anEntryList );
+//   return true;
+// }
+
+
+SMESHGUI_MG_ADAPTDRIVER::SMESHGUI_MG_ADAPTDRIVER( SMESHGUI* theModule, SMESH::MG_ADAPT_ptr myModel, bool isCreation )
+  : SMESHGUI_MgAdaptDlg((SalomeApp_Module*)theModule, myModel, SMESHGUI::desktop(), isCreation),
+    mySMESHGUI( theModule ),
+    myIsApplyAndClose( false )
+{
+
+  //resMgr = mySMESHGUI->resourceMgr();
+
+  selMgr = selectionMgr();
+
+  // connections
+  connect(myArgs, SIGNAL(updateSelection()), this, SLOT(updateSelection()));
+  connect(myArgs, SIGNAL(toExportMED(const char*)), this, SLOT(exportMED(const char*)));
+}
+
+// SUIT_ResourceMgr* SMESHGUI_MG_ADAPTDRIVER::resourceMgr()
+// {
+//   return dynamic_cast<SUIT_ResourceMgr*>( SUIT_Session::session()->resourceMgr() );
+// }
+
+LightApp_SelectionMgr* SMESHGUI_MG_ADAPTDRIVER::selectionMgr()
+{
+  SalomeApp_Application* anApp = dynamic_cast<SalomeApp_Application*>( SUIT_Session::session()->activeApplication() );
+  if( anApp )
+    return dynamic_cast<LightApp_SelectionMgr*>( anApp->selectionMgr() );
+  else
+    return 0;
+}
+
+void SMESHGUI_MG_ADAPTDRIVER::updateSelection()
+{
+  disconnect( selMgr, 0, this, 0 );
+  selMgr->clearFilters();
+
+  SMESH::SetPointRepresentation( false );
+  if ( SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow() )
+    aViewWindow->SetSelectionMode( ActorSelection );
+  if (myArgs->aBrowser->isChecked())
+  {
+    connect( selMgr, SIGNAL( currentSelectionChanged() ), this, SLOT( selectionChanged() ));
+    selectionChanged();
+  }
+
+}
+void SMESHGUI_MG_ADAPTDRIVER::selectionChanged()
+{
+  //~ get selected mesh
+  SALOME_ListIO aList;
+  selMgr->selectedObjects(aList);
+  QString aString = "";
+  int nbSel = aList.Extent();
+  if (nbSel != 1)
+    return;
+
+  Handle(SALOME_InteractiveObject) IO = aList.First();
+  SMESH::SMESH_Mesh_var mesh = SMESH::GetMeshByIO(IO);
+  if ( !mesh->_is_nil() )
+  {
+    myMesh = mesh;
+
+    SMESH::SMESH_IDSource_var sSelectedObj = SMESH::IObjectToInterface<SMESH::SMESH_IDSource>( IO );
+    if ( sSelectedObj->_is_nil() )
+      return;
+  }
+  else
+    return;
+
+  SMESH::GetNameOfSelectedIObjects( selMgr, aString );
+  if ( aString.isEmpty() ) aString = " ";
+  else                     aString = aString.trimmed();
+
+
+  //bool ok = !aString.isEmpty();
+  if ( !mesh->_is_nil() )
+  {
+    myArgs->aBrowserObject->setText( aString );
+    myArgs->meshNameLineEdit->setText( aString );
+    myArgs->selectOutMedFileLineEdit->setText(aString+QString(".med"));
+    ADAPTATION_MODE aMode;
+    int nbVolumes = myMesh->NbVolumes();
+    int nbFaces = myMesh->NbFaces();
+    if(nbFaces > 0 && nbVolumes > 0) aMode = ADAPTATION_MODE::BOTH;
+    else if(nbFaces > 0) aMode = ADAPTATION_MODE::SURFACE;
+    else aMode = ADAPTATION_MODE::VOLUME;
+    emit myArgs->meshDimSignal(aMode);
+  }
+
+}
+void SMESHGUI_MG_ADAPTDRIVER::exportMED(const char* tmp_file)
+{
+  bool toOverwrite = true;
+  bool toFindOutDim = true;
+  myMesh->ExportMED(tmp_file, false, -1, toOverwrite, toFindOutDim);
+}
+void SMESHGUI_MG_ADAPTDRIVER::setMyMesh(SMESH::SMESH_Mesh_var mesh)
+{
+  myMesh = mesh;
+}
+SMESH::SMESH_Mesh_var SMESHGUI_MG_ADAPTDRIVER::getMyMesh()
+{
+  return myMesh;
+}
+
+//=================================================================================
+// function : PushOnOk()
+// purpose  :
+//=================================================================================
+void SMESHGUI_MG_ADAPTDRIVER::PushOnOK()
+{
+  setIsApplyAndClose( true );
+  bool ret = PushOnApply();
+//   std::cout  << "SMESHGUI_MG_ADAPTDRIVER::PushOnOK ret : " <<ret<<std::endl;
+  if ( ret ) reject();
+}
+
+bool SMESHGUI_MG_ADAPTDRIVER::PushOnApply()
+{
+  if ( SMESHGUI::isStudyLocked() )
+    return false;
+  if( !isValid() )
+    return false;
+
+  bool ok = SMESHGUI_MgAdaptDlg::PushOnApply();
+//   std::cout  << "SMESHGUI_MG_ADAPTDRIVER::PushOnApply ok 1 : " <<ok<<std::endl;
+
+  if ( ok )
+  {
+    ok = execute();
+    if (getModel()->getPublish()) this->createMeshInObjectBrowser();
+//     std::cout  << "SMESHGUI_MG_ADAPTDRIVER::PushOnApply ok 2 : " <<ok<<std::endl;
+    if ( ok )
+    {
+      QMessageBox::information( 0, QObject::tr(""),
+                                   QObject::tr("MG_ADAPT_DIAG_1") );
+    }
+    else
+    {
+      QMessageBox::critical( 0, QObject::tr("MG_ADAPT_ERROR"),
+                                QObject::tr("MG_ADAPT_DIAG_2") );
+    }
+  }
+
+  return ok;
+}
+
+// macro used to initialize errStr by exception description
+// returned by SMESH_CATCH( SMESH::returnError )
+#undef SMESH_CAUGHT
+#define SMESH_CAUGHT errStr =
+
+#undef SMY_OWN_CATCH
+#define SMY_OWN_CATCH catch ( SALOME::SALOME_Exception & e ) { errStr = e.details.text; }
+
+bool SMESHGUI_MG_ADAPTDRIVER::execute()
+{
+  int err = 1;
+  std::string errStr;
+  SMESH_TRY;
+  {
+    getModel()->compute();
+    err = 0;
+    errStr = SMESH::toStdStr( getModel()->getErrMsg() );
+  }
+  SMESH_CATCH( SMESH::returnError );
+
+  std::string msg = " ok";
+  if ( !errStr.empty() || err != 0 )
+  {
+    msg = "Not ok \n" + errStr + "\n";
+    std::cerr << msg;
+    err = 1;
+  }
+  return err == 0;
+}
+#undef SMESH_CAUGHT
+#define SMESH_CAUGHT
+
+//=================================================================================
+// function : enterEvent()
+// purpose  :
+//=================================================================================
+void SMESHGUI_MG_ADAPTDRIVER::enterEvent (QEvent*)
+{
+
+  // if ( !ConstructorsBox->isEnabled() ) {
+  //   SVTK_ViewWindow* aViewWindow = SMESH::GetViewWindow( mySMESHGUI );
+  //   if ( aViewWindow && !mySelector ) {
+  //     mySelector = aViewWindow->GetSelector();
+  //   }
+  //   activateThisDialog();
+  // }
+
+}
+
+//=================================================================================
+// function : keyPressEvent()
+// purpose  :
+//=================================================================================
+void SMESHGUI_MG_ADAPTDRIVER::keyPressEvent( QKeyEvent* e )
+{
+
+  QDialog::keyPressEvent( e );
+  if ( e->isAccepted() )
+      return;
+
+  if ( e->key() == Qt::Key_F1 )
+  {
+    e->accept();
+    PushOnHelp();
+  }
+
+}
+
+//=================================================================================
+// function : PushOnHelp()
+// purpose  :
+//=================================================================================
+void SMESHGUI_MG_ADAPTDRIVER::PushOnHelp()
+{
+
+  QString aHelpFile = "adaptation.html#_mg_adapt_anchor";
+
+  SMESH::ShowHelpFile( aHelpFile );
+
+}
+
+//=================================================================================
+// function : isValid
+// purpose  :
+//=================================================================================
+
+bool SMESHGUI_MG_ADAPTDRIVER::isValid()
+{
+  bool ok = true;
+  return ok;
+}
+
+bool SMESHGUI_MG_ADAPTDRIVER::createMeshInObjectBrowser()
+{
+  QString filename( SMESH::toQStr( getModel()->getMedFileOut() ));
+  QStringList errors;
+  QStringList anEntryList;
+  bool isEmpty = false;
+  //  bool ok = false;
+  SMESH::SMESH_Gen_var SMESH_Gen_ptr = SMESHGUI::GetSMESHGen();
+  if ( SMESH_Gen_ptr->_is_nil() ) {
+    QMessageBox::critical( 0, QObject::tr("MG_ADAPT_ERROR"),
+                           QObject::tr("Could not retrieve SMESH_Gen_ptr") );
+    return false;
+  }
+  SMESH::mesh_array_var aMeshes = new SMESH::mesh_array;
+  aMeshes->length( 1 ); // one mesh only
+  SMESH::DriverMED_ReadStatus res;
+  aMeshes = SMESH_Gen_ptr->CreateMeshesFromMED( filename.toUtf8().constData(), res );
+  if ( res != SMESH::DRS_OK ) {
+    errors.append( QString( "%1 :\n\t%2" ).arg( filename ).arg( QObject::tr( QString( "SMESH_DRS_%1" ).arg( res ).toLatin1().data() ) ) );
+  }
+  _PTR(Study) aStudy = SMESH::getStudy();
+  for ( int i = 0, iEnd = aMeshes->length(); i < iEnd; i++ )
+  {
+    _PTR(SObject) aMeshSO = SMESH::FindSObject( aMeshes[i] );
+    if ( aMeshSO )
+    {
+      _PTR(StudyBuilder) aBuilder = aStudy->NewBuilder();
+      _PTR(AttributePixMap) aPixmap = aBuilder->FindOrCreateAttribute( aMeshSO, "AttributePixMap" );
+      aPixmap->SetPixMap( "ICON_SMESH_TREE_MESH_IMPORTED" ); // put REFINED mesh ico
+      anEntryList.append( aMeshSO->GetID().c_str() );
+    }
+    else
+    {
+      isEmpty = true;
+    }
+  }
+  // update Object browser
+  SMESHGUI::GetSMESHGUI()->updateObjBrowser();
+  // browse to the published meshes
+  if( LightApp_Application* anApp =
+      dynamic_cast<LightApp_Application*>( SUIT_Session::session()->activeApplication() ) )
+    anApp->browseObjects( anEntryList );
+
+  // show Error message box if there were errors
+  if ( errors.count() > 0 ) {
+    SUIT_MessageBox::critical( SMESHGUI::desktop(),
+                               QObject::tr( "SMESH_ERROR" ),
+                               QObject::tr( "SMESH_IMPORT_ERRORS" ) + "\n" + errors.join( "\n" ) );
+  }
+
+  // show warning message box, if some imported mesh is empty
+  if ( isEmpty ) {
+    SUIT_MessageBox::warning( SMESHGUI::desktop(),
+                              QObject::tr( "SMESH_WRN_WARNING" ),
+                              QObject::tr( "SMESH_DRS_SOME_EMPTY" ) );
+  }
+  return true;
+}
+
+//================================================================
+// function : setIsApplyAndClose
+// Purpose  : Set value of the flag indicating that the dialog is
+//            accepted by Apply & Close button
+//================================================================
+void SMESHGUI_MG_ADAPTDRIVER::setIsApplyAndClose( const bool theFlag )
+{
+  myIsApplyAndClose = theFlag;
+}
+//================================================================
+// function : isApplyAndClose
+// Purpose  : Get value of the flag indicating that the dialog is
+//            accepted by Apply & Close button
+//================================================================
+bool SMESHGUI_MG_ADAPTDRIVER::isApplyAndClose() const
+{
+  return myIsApplyAndClose;
+}
+
+//=================================================================================
+// function : DeactivateActiveDialog()
+// purpose  :
+//=================================================================================
+void SMESHGUI_MG_ADAPTDRIVER::deactivateActiveDialog()
+{
+  // if (isEnabled())
+  // {
+  //   mySMESHGUI->ResetState();
+  //   mySMESHGUI->SetActiveDialogBox(0);
+  //   setEnabled( false );
+  // }
+}
+
+//=================================================================================
+// function : ActivateThisDialog()
+// purpose  :
+//=================================================================================
+void SMESHGUI_MG_ADAPTDRIVER::activateThisDialog()
+{
+
+  /* Emit a signal to deactivate the active dialog */
+  // mySMESHGUI->EmitSignalDeactivateDialog();
+  // ConstructorsBox->setEnabled(true);
+  // GroupArguments->setEnabled(true);
+  // GroupButtons->setEnabled(true);
+
+  // mySMESHGUI->SetActiveDialogBox((QDialog*)this);
+
+  // onSelectIdSource( myIdSourceCheck->isChecked() );
+
+  // SelectionIntoArgument();
+}
--- a/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.h
+++ b/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.h
@ -0,0 +1,90 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#ifndef SMESHGUI_MG_ADAPTDRIVER_H
+#define SMESHGUI_MG_ADAPTDRIVER_H
+
+#include "SMESH_SMESHGUI.hxx"
+
+// model
+#include "SMESHGUI_MgAdaptDlg.h"
+
+// IDL includes
+#include <SALOMEconfig.h>
+#include CORBA_SERVER_HEADER(SMESH_Mesh)
+#include CORBA_SERVER_HEADER(MG_ADAPT)
+
+class SMESHGUI;
+class LightApp_SelectionMgr;
+//class MgAdapt;
+
+// int IObjectCount();
+// const SALOME_ListIO& selectedIO();
+// _PTR(Study) getStudy();
+// Handle(SALOME_InteractiveObject) firstIObject();
+// bool createAndPublishMed(QString fileName);
+// bool createMgAdaptObject(MgAdapt* myMgAdapt = 0);
+
+
+class  SMESHGUI_MG_ADAPTDRIVER : public SMESHGUI_MgAdaptDlg
+{
+    Q_OBJECT
+
+public :
+    SMESHGUI_MG_ADAPTDRIVER( SMESHGUI*, SMESH::MG_ADAPT_ptr, bool isCreation = true );
+    void setMyMesh(SMESH::SMESH_Mesh_var);
+    SMESH::SMESH_Mesh_var getMyMesh() ;
+
+private :
+
+    SMESHGUI*              mySMESHGUI;              /* Current SMESHGUI object */
+    LightApp_SelectionMgr* selMgr ;
+    LightApp_SelectionMgr* selectionMgr();
+    SMESH::SMESH_Mesh_var  myMesh ;
+    bool                   myIsApplyAndClose;
+
+    void                   enterEvent( QEvent* );           /* mouse enter the QWidget */
+    void                   keyPressEvent( QKeyEvent* );
+
+    bool                   isValid();
+    bool                   createMeshInObjectBrowser();
+    void                   setIsApplyAndClose( const bool theFlag );
+    bool                   isApplyAndClose() const;
+    bool                   execute();
+
+
+private slots:
+    void selectionChanged();
+    void updateSelection();
+
+protected slots :
+
+private slots:
+
+    void exportMED(const char* );
+
+    virtual bool PushOnApply();
+    virtual void PushOnOK();
+    virtual void PushOnHelp();
+
+    void         deactivateActiveDialog();
+    void         activateThisDialog();
+};
+
+#endif // SMESHGUI_MG_ADAPTDRIVER_H
--- a/src/SMESHGUI/SMESHGUI_MgAdaptDlg.cxx
+++ b/src/SMESHGUI/SMESHGUI_MgAdaptDlg.cxx
--- a/src/SMESHGUI/SMESHGUI_MgAdaptDlg.h
+++ b/src/SMESHGUI/SMESHGUI_MgAdaptDlg.h
@ -0,0 +1,279 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#ifndef MG_ADAPTGUI_HXX
+#define MG_ADAPTGUI_HXX
+
+// Qt includes
+#include <QDialog>
+#include <QTreeWidget>
+#include <QItemDelegate>
+
+#include <map>
+
+#include <SALOMEconfig.h>
+#include CORBA_SERVER_HEADER(MG_ADAPT)
+#include <SALOME_GenericObj_wrap.hxx>
+
+class SalomeApp_Module;
+
+class QButtonGroup;
+class QLineEdit;
+class QGroupBox;
+class QRadioButton;
+class QLabel;
+class QCheckBox;
+class QGridLayout;
+class QTabWidget;
+class QDoubleSpinBox;
+class QSpacerItem;
+class QSpinBox;
+class QTreeWidgetItem;
+class QHBoxLayout;
+class QComboBox;
+
+class SMESHGUI_MgAdaptArguments;
+class MgAdaptAdvWidgetTreeWidget;
+class MgAdaptAdvWidget;
+
+enum ADAPTATION_MODE{
+  SURFACE,
+  VOLUME,
+  BOTH
+};
+
+//=================================================================================
+// class    : SMESHGUI_MgAdaptDlg
+// purpose  :
+//=================================================================================
+class  SMESHGUI_MgAdaptDlg : public QDialog
+{
+  Q_OBJECT
+public:
+  //! Property type
+  enum Mode { Arguments, AdvancedOptions};
+  SMESHGUI_MgAdaptDlg( SalomeApp_Module*, SMESH::MG_ADAPT_ptr, QWidget* parent= 0,bool isCreation = true );
+  ~SMESHGUI_MgAdaptDlg();
+
+  void buildDlg();
+  void reject();
+  bool checkParams(QString& msg) ;
+  //~void setModel(MgAdapt*);
+  SMESH::MG_ADAPT_ptr getModel() const;
+
+public slots:
+
+protected slots:
+  virtual bool PushOnApply();
+
+private slots:
+  virtual void PushOnHelp();
+  virtual void PushOnOK();
+
+protected :
+
+  SMESHGUI_MgAdaptArguments* myArgs;
+  MgAdaptAdvWidget*          myAdvOpt;
+
+  bool readParamsFromHypo( ) const ;
+  bool readParamsFromWidgets( ) ;
+  bool storeParamsToHypo( const SMESH::MgAdaptHypothesisData & ) const;
+
+private:
+
+  SalomeApp_Module*              mySMESHGUI;
+  QTabWidget*                    myTabWidget;
+
+  SMESH::MgAdaptHypothesisData_var           myData;
+  SALOME::GenericObj_wrap< SMESH::MG_ADAPT > model;
+
+};
+
+class  SMESHGUI_MgAdaptArguments : public QWidget
+{
+  Q_OBJECT
+public:
+  //! Property type
+  enum Mode { Mesh, Browser};
+  enum SIZEMAP { Local, Background, Constant};
+  SMESHGUI_MgAdaptArguments( QWidget* parent);
+  ~SMESHGUI_MgAdaptArguments();
+  void setMode( const Mode, const SIZEMAP );
+
+  QString myFileInDir;
+  QString myFileOutDir;
+  QString myFileSizeMapDir;
+  QGroupBox*    aMeshIn ;
+  QRadioButton* aMedfile;
+  QRadioButton* aBrowser ;
+  QLineEdit* aBrowserObject;
+  QPushButton* selectMedFilebutton ;
+  QSpacerItem* hspacer;
+  QLineEdit* selectMedFileLineEdit ;
+  QButtonGroup* meshInGroup ;
+  QGridLayout* meshIn ;
+
+  QGroupBox*    aMeshOut ;
+  QLabel* meshName;
+  QLineEdit* meshNameLineEdit;
+  QSpacerItem* secondHspacer;
+  QCheckBox* medFileCheckBox;
+  QPushButton* selectOutMedFilebutton;
+  QLineEdit* selectOutMedFileLineEdit;
+  QSpacerItem* thirdHspacer;
+  QCheckBox* publishOut;
+  QGridLayout* meshOut ;
+
+  QGroupBox*    sizeMapDefinition ;
+  QRadioButton* localButton;
+  QRadioButton* backgroundButton ;
+  QRadioButton* constantButton ;
+  QLabel* medFileBackground;
+  QPushButton* selectMedFileBackgroundbutton;
+  QLineEdit* selectMedFileBackgroundLineEdit;
+  QLabel* valueLabel;
+  QDoubleSpinBox* dvalue;
+  QButtonGroup* sizeMapDefGroup ;
+  QGridLayout* sizeMapDefGroupLayout;
+
+
+  QGroupBox* sizeMapField;
+  QLabel* fieldName;
+  QComboBox* fieldNameCmb;
+  QRadioButton* noTimeStep;
+  QRadioButton* lastTimeStep ;
+  QRadioButton* chosenTimeStep;
+  QLabel* timeStepLabel;
+  QSpinBox* timeStep;
+  QLabel* rankLabel;
+  QSpinBox* rankSpinBox;
+  QButtonGroup* timeStepGroup;
+  QGridLayout* sizeMapFieldGroupLayout;
+
+signals:
+  void updateSelection();
+  void toExportMED(const char *);
+  void meshDimSignal(ADAPTATION_MODE aMode);
+public slots:
+
+protected slots:
+
+private slots:
+  void modeChanged( int);
+  void sizeMapDefChanged(int);
+  void timeStepGroupChanged(int timeStepType, bool disableOther = false, int vmax = 0);
+  void onSelectMedFilebuttonClicked();
+  void clear();
+  void onMedFileCheckBox(int);
+  void onPublishOut(int);
+  void onSelectOutMedFilebutton();
+  void onSelectMedFileBackgroundbutton();
+  void onLocalSelected(QString);
+  void onNoTimeStep(bool disableOther = false);
+  void onLastTimeStep(bool disableOther = false);
+  void onChosenTimeStep(bool disableOther = false, int vmax = 0);
+  void visibleTimeStepRankLabel(bool visible);
+  void valueAdaptation ();
+
+private:
+
+  QString getMedFileName(bool avertir);
+  int meshDim;
+  int meshDimBG;
+  std::map<QString, int> myFieldList;
+
+};
+enum {
+  OPTION_ID_COLUMN = 0,
+  OPTION_TYPE_COLUMN,
+  OPTION_NAME_COLUMN = 0,
+  OPTION_VALUE_COLUMN,
+  NB_COLUMNS,
+};
+
+//////////////////////////////////////////
+// MgAdaptAdvWidget
+//////////////////////////////////////////
+class  MgAdaptAdvWidget : public QWidget
+{
+  Q_OBJECT
+
+public:
+  MgAdaptAdvWidget( QWidget* = 0, std::vector <std::string> * = nullptr, Qt::WindowFlags = 0 );
+  ~MgAdaptAdvWidget();
+  std::vector < std::string > *myOptions;
+  QGridLayout                 *gridLayout_4;
+  MgAdaptAdvWidgetTreeWidget  *myOptionTable;
+  QPushButton                 *addBtn;
+  QSpacerItem                 *horizontalSpacer;
+  QGroupBox                   *logGroupBox;
+  QGridLayout                 *gridLayout_2;
+  QGridLayout                 *gridLayout;
+  QLabel                      *workingDirectoryLabel;
+  QLineEdit                   *workingDirectoryLineEdit;
+  QPushButton                 *workingDirectoryPushButton;
+  QLabel                      *verboseLevelLabel;
+  QSpinBox                    *verboseLevelSpin;
+  QHBoxLayout                 *horizontalLayout;
+  QCheckBox                   *logInFileCheck;
+  QCheckBox                   *removeLogOnSuccessCheck;
+  QCheckBox                   *keepWorkingFilesCheck;
+
+  void AddOption( const char* name_value_type, bool isCustom = false );
+  void GetOptionAndValue( QTreeWidgetItem * tblRow, QString& option, QString& value, bool& dflt );
+  void setupWidget();
+
+public slots:
+  void                onAddOption();
+  void itemChanged(QTreeWidgetItem * tblRow, int column);
+  void onMeshDimChanged(ADAPTATION_MODE aMode);
+private slots:
+  void _onWorkingDirectoryPushButton();
+private:
+  void setOptionValue(QString& option, QString& value);
+  std::map<QString, QTreeWidgetItem *> optionTreeWidgetItem;
+
+  QTreeWidgetItem* getNewQTreeWidgetItem(QTreeWidget* table, const char* option, QString& name, bool isCustom);
+
+};
+
+enum { EDITABLE_ROLE = Qt::UserRole + 1, PARAM_NAME,
+       NAME_COL = 0, VALUE_COL
+     };
+
+class  ItemDelegate: public QItemDelegate
+{
+public:
+
+  ItemDelegate(QObject* parent=0): QItemDelegate(parent) {}
+  QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &o, const QModelIndex &index) const;
+};
+
+class  MgAdaptAdvWidgetTreeWidget : public QTreeWidget
+{
+  Q_OBJECT
+public:
+  MgAdaptAdvWidgetTreeWidget( QWidget* );
+
+protected:
+  QModelIndex moveCursor( CursorAction, Qt::KeyboardModifiers );
+  void keyPressEvent( QKeyEvent* );
+};
+
+#endif // MG_ADAPTGUI_HXX
--- a/src/SMESHGUI/SMESHGUI_Operations.h
+++ b/src/SMESHGUI/SMESHGUI_Operations.h
@ -186,6 +186,8 @@ namespace SMESHOp {
    OpConvertMeshToQuadratic = 4513,   // MENU MODIFICATION - CONVERT TO/FROM QUADRATIC
    OpCreateBoundaryElements = 4514,   // MENU MODIFICATION - CREATE BOUNDARY ELEMENTS
    OpSplitBiQuadratic       = 4515,   // MENU MODIFICATION - SPLIT BI-QUADRATIC TO LINEAR
+    // Adaptation ---------------------//--------------------------------
+    OpMGAdapt                = 8020,   // MENU ADAPTATION - MG-ADAPT
    // Measurements -------------------//--------------------------------
    OpPropertiesLength       = 5000,   // MENU MEASUREMENTS - BASIC PROPERTIES - LENGTH
    OpPropertiesArea         = 5001,   // MENU MEASUREMENTS - BASIC PROPERTIES - AREA
--- a/src/SMESHGUI/SMESH_images.ts
+++ b/src/SMESHGUI/SMESH_images.ts
@ -83,6 +83,10 @@
            <source>ICON_CREATE_GEO_GROUP</source>
            <translation>mesh_groups_from_gemetry.png</translation>
        </message>
+        <message>
+            <source>ICON_MG_ADAPT</source>
+            <translation>adapt_mg_adapt.png</translation>
+        </message>
        <message>
            <source>ICON_CONV_TO_QUAD</source>
            <translation>mesh_conv_to_quad.png</translation>
--- a/src/SMESHGUI/SMESH_msg_en.ts
+++ b/src/SMESHGUI/SMESH_msg_en.ts
@ -340,6 +340,126 @@
        <source>MEN_CONSTRUCT_GROUP</source>
        <translation>Construct Group</translation>
    </message>
+    <message>
+        <source>MEN_MG_ADAPT</source>
+        <translation>Remesh with MG_Adapt</translation>
+    </message>
+    <message>
+        <source>Args</source>
+        <translation>Arguments</translation>
+    </message>
+    <message>
+        <source>MeshOut</source>
+        <translation>Mesh Out</translation>
+    </message>
+    <message>
+        <source>MeshIn</source>
+        <translation>Mesh In</translation>
+    </message>
+    <message>
+        <source>MEDFile</source>
+        <translation>MED file</translation>
+    </message>
+    <message>
+        <source>Browser</source>
+        <translation>Browser</translation>
+    </message>
+    <message>
+        <source>Publish_MG_ADAPT</source>
+        <translation>Publish</translation>
+    </message>
+    <message>
+        <source>SIZE_MAP_FIELD</source>
+        <translation>Size map field</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_FIELD_NAME</source>
+        <translation>Field Name</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_1</source>
+        <translation>This MED file cannot be read.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_2</source>
+        <translation>No mesh in this MED file.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_3</source>
+        <translation>More than one mesh in this MED file.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_4</source>
+        <translation>The mesh in this MED file cannot be read.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_5</source>
+        <translation>No field in this MED file.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_ERROR</source>
+        <translation>Error</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_CH_ST</source>
+        <translation>Chosen time step</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_RANK</source>
+        <translation>Rank</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_TSTP</source>
+        <translation>Time step </translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_NO_T_ST</source>
+        <translation>No time step</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_L_ST</source>
+        <translation>Last time step</translation>
+    </message>
+    <message>
+        <source>MeshName</source>
+        <translation>Mesh name</translation>
+    </message>
+    <message>
+        <source>LOCAL_MG_ADAPT</source>
+        <translation>Local</translation>
+    </message>
+    <message>
+        <source>BACKGRND_MG_ADAPT</source>
+        <translation>Background</translation>
+    </message>
+    <message>
+        <source>CNST_MG_ADAPT</source>
+        <translation>Constant</translation>
+    </message>
+    <message>
+        <source>MED_FILE_BCKG</source>
+        <translation>MED file background size map</translation>
+    </message>
+    <message>
+        <source>VALUE_MG_ADAPT</source>
+        <translation>Value</translation>
+    </message>
+    <message>
+        <source>SIZE_MAP_DEF</source>
+        <translation>Size map definition</translation>
+    </message>
+    <message>
+        <source>ADVOP</source>
+        <translation>Advanced Options</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_DIAG_1</source>
+        <translation>Adaptation succeeded.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_DIAG_2</source>
+        <translation>Adaptation failed.</translation>
+    </message>
    <message>
        <source>MEN_CONV_TO_QUAD</source>
        <translation>Convert to/from quadratic</translation>
@ -788,6 +908,10 @@
        <source>MEN_MODIFY</source>
        <translation>Modification</translation>
    </message>
+    <message>
+        <source>MEN_ADAPT</source>
+        <translation>Adaptation</translation>
+    </message>
    <message>
        <source>MEN_MEASURE</source>
        <translation>Measurements</translation>
@ -1502,6 +1626,10 @@ Please enter correct values and try again</translation>
        <source>SMESH_AVAILABLE</source>
        <translation>Available</translation>
    </message>
+    <message>
+        <source>SMESH_NOT_AVAILABLE</source>
+        <translation>Not available</translation>
+    </message>
    <message>
        <source>SMESH_AVAILABLE_ALGORITHMS</source>
        <translation>Available algorithms</translation>
@ -2897,6 +3025,82 @@ Check algorithm documentation for supported geometry</translation>
        <source>SMESH_MULTICOLOR</source>
        <translation>Multicolor</translation>
    </message>
+    <message>
+        <source>ADAPT_PREF_TAB_GENERAL</source>
+        <translation>Adaptation</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_NONE</source>
+        <translation>None</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT</source>
+        <translation>Adaptation with MG-Adapt</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_FILE_MAILLAGE_OUT</source>
+        <translation>Write the OUT mesh</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_PUBLICATION_MAILLAGE_OUT</source>
+        <translation>Publication of the OUT mesh</translation>
+    </message>
+    <message>
+        <source>OPTION_VALUE_COLUMN</source>
+        <translation>Option</translation>
+    </message>
+    <message>
+        <source>OPTION_NAME_COLUMN</source>
+        <translation>Value</translation>
+    </message>
+    <message>
+        <source>compute_ridges</source>
+        <translation>Compute ridges</translation>
+    </message>
+    <message>
+        <source>max_memory</source>
+        <translation>Maximum memory (Mb)</translation>
+    </message>
+    <message>
+        <source>Adaption</source>
+        <translation>adaptation</translation>
+    </message>
+    <message>
+        <source>components</source>
+        <translation>Components</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_SIZE_MAP</source>
+        <translation>Size map</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_SIZE_MAP_LOCAL</source>
+        <translation>Local</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_SIZE_MAP_BACKGROUND</source>
+        <translation>Background</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_TIME_STEP_LAST</source>
+        <translation>Last</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_TIME_STEP</source>
+        <translation>Choosen time step</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_TIME_STEP_C</source>
+        <translation>Value</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_SELECT_FILE_0</source>
+        <translation>MG-ADAPT select file</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_ADVOP</source>
+        <translation>Advanced Options</translation>
+    </message>
    <message>
        <source>SMESH_VISU_PROBLEM</source>
        <translation>Mesh visualization failed</translation>
@ -3112,6 +3316,10 @@ Use Display Entity menu command to show them.
        <source>STB_CONSTRUCT_GROUP</source>
        <translation>Construct Group</translation>
    </message>
+    <message>
+        <source>STB_MG_ADAPT</source>
+        <translation>Remesh with MG_Adapt</translation>
+    </message>
    <message>
        <source>STB_CONV_TO_QUAD</source>
        <translation>Convert to/from quadratic</translation>
@ -3708,6 +3916,10 @@ Use Display Entity menu command to show them.
        <source>TB_CTRL3D</source>
        <translation>Volume Controls Toolbar</translation>
    </message>
+    <message>
+        <source>TB_ADAPTATION</source>
+        <translation>Adaptation Toolbar</translation>
+    </message>
    <message>
        <source>TB_MEASUREM</source>
        <translation>Measurements Toolbar</translation>
@ -3812,6 +4024,10 @@ Use Display Entity menu command to show them.
        <source>TOP_CONSTRUCT_GROUP</source>
        <translation>Construct Group</translation>
    </message>
+    <message>
+        <source>TOP_MG_ADAPT</source>
+        <translation>Remesh with MG_Adapt</translation>
+    </message>
    <message>
        <source>TOP_CONV_TO_QUAD</source>
        <translation>Convert to/from quadratic</translation>
--- a/src/SMESHGUI/SMESH_msg_fr.ts
+++ b/src/SMESHGUI/SMESH_msg_fr.ts
@ -340,6 +340,126 @@
        <source>MEN_CONSTRUCT_GROUP</source>
        <translation>Construire un groupe</translation>
    </message>
+    <message>
+        <source>MEN_MG_ADAPT</source>
+        <translation>Remaillage avec MG_Adapt</translation>
+    </message>
+    <message>
+        <source>Args</source>
+        <translation>Arguments</translation>
+    </message>
+    <message>
+        <source>MeshOut</source>
+        <translation>Maillage en sortie</translation>
+    </message>
+    <message>
+        <source>MeshIn</source>
+        <translation>Maillage en entrée</translation>
+    </message>
+    <message>
+        <source>MEDFile</source>
+        <translation>Fichier MED</translation>
+    </message>
+    <message>
+        <source>Browser</source>
+        <translation>Arbre d'études</translation>
+    </message>
+    <message>
+        <source>Publish_MG_ADAPT</source>
+        <translation>Publication</translation>
+    </message>
+    <message>
+        <source>SIZE_MAP_FIELD</source>
+        <translation>Champ de la carte de taille</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_FIELD_NAME</source>
+        <translation>Nom du champ</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_1</source>
+        <translation>Ce fichier MED est illisible.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_2</source>
+        <translation>Ce fichier MED ne contient aucun maillage.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_3</source>
+        <translation>Ce fichier MED contient plus d'un maillage.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_4</source>
+        <translation>Impossible de lire le maillage de ce fichier MED.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_MED_FILE_5</source>
+        <translation>Ce fichier MED ne contient aucun champ.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_ERROR</source>
+        <translation>Erreur</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_CH_ST</source>
+        <translation>Pas de temps choisi</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_RANK</source>
+        <translation>Numéro d'ordre</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_TSTP</source>
+        <translation>Pas de temps </translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_NO_T_ST</source>
+        <translation>Sans pas de temps</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_L_ST</source>
+        <translation>Dernier pas de temps</translation>
+    </message>
+    <message>
+        <source>MeshName</source>
+        <translation>Nom du maillage</translation>
+    </message>
+    <message>
+        <source>LOCAL_MG_ADAPT</source>
+        <translation>Locale</translation>
+    </message>
+    <message>
+        <source>BACKGRND_MG_ADAPT</source>
+        <translation>Arrière-plan</translation>
+    </message>
+    <message>
+        <source>CNST_MG_ADAPT</source>
+        <translation>Constante</translation>
+    </message>
+    <message>
+        <source>MED_FILE_BCKG</source>
+        <translation>Fichier MED de la carte en arrière-plan</translation>
+    </message>
+    <message>
+        <source>VALUE_MG_ADAPT</source>
+        <translation>Valeur</translation>
+    </message>
+    <message>
+        <source>SIZE_MAP_DEF</source>
+        <translation>Définition de la carte de taille</translation>
+    </message>
+    <message>
+        <source>ADVOP</source>
+        <translation>Options avancées</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_DIAG_1</source>
+        <translation>Adaptation réussie.</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_DIAG_2</source>
+        <translation>Echec de l'adaptation.</translation>
+    </message>
    <message>
        <source>MEN_CONV_TO_QUAD</source>
        <translation>Convertir vers/depuis quadratique</translation>
@ -482,7 +602,7 @@
    </message>
    <message>
        <source>MEN_EDIT</source>
-        <translation>Edition</translation>
+        <translation>Editer</translation>
    </message>
    <message>
        <source>MEN_EDIT_GROUP</source>
@ -788,6 +908,10 @@
        <source>MEN_MODIFY</source>
        <translation>Modification</translation>
    </message>
+    <message>
+        <source>MEN_ADAPT</source>
+        <translation>Adaptation</translation>
+    </message>
    <message>
        <source>MEN_MEASURE</source>
        <translation>Outils de mesure</translation>
@ -2895,6 +3019,82 @@ Référez-vous à la documentation sur l'algorithme et la géométrie supportée
        <source>SMESH_MULTICOLOR</source>
        <translation>Multicouleur</translation>
    </message>
+    <message>
+        <source>ADAPT_PREF_TAB_GENERAL</source>
+        <translation>Adaptation</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_NONE</source>
+        <translation>Sans</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT</source>
+        <translation>Adaptation avec MG-Adapt</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_FILE_MAILLAGE_OUT</source>
+        <translation>Ecriture du maillage de sortie</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_PUBLICATION_MAILLAGE_OUT</source>
+        <translation>Publication du maillage de sortie</translation>
+    </message>
+    <message>
+        <source>OPTION_VALUE_COLUMN</source>
+        <translation>Option</translation>
+    </message>
+    <message>
+        <source>OPTION_NAME_COLUMN</source>
+        <translation>Valeur</translation>
+    </message>
+    <message>
+        <source>compute_ridges</source>
+        <translation>Calcul des crêtes</translation>
+    </message>
+    <message>
+        <source>max_memory</source>
+        <translation>Maximum mémoire (Mb)</translation>
+    </message>
+    <message>
+        <source>Adaption</source>
+        <translation>Adaptation</translation>
+    </message>
+    <message>
+        <source>components</source>
+        <translation>Composantes</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_SIZE_MAP</source>
+        <translation>Carte de tailles</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_SIZE_MAP_LOCAL</source>
+        <translation>Locale</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_SIZE_MAP_BACKGROUND</source>
+        <translation>Arrière-plan</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_TIME_STEP_LAST</source>
+        <translation>Dernier</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_TIME_STEP</source>
+        <translation>Choix du pas de temps</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_TIME_STEP_C</source>
+        <translation>Valeur</translation>
+    </message>
+    <message>
+        <source>MG_ADAPT_SELECT_FILE_0</source>
+        <translation>MG-ADAPT selection fichier MED</translation>
+    </message>
+    <message>
+        <source>ADAPT_PREF_MG_ADAPT_ADVOP</source>
+        <translation>Options avancées</translation>
+    </message>
    <message>
        <source>SMESH_VISU_PROBLEM</source>
        <translation>Impossible de visualiser le maillage, probablement à cause d'un manque de mémoire</translation>
@ -3111,6 +3311,10 @@ Utilisez le menu &quot;Visualiser une entité&quot; pour les afficher.
        <source>STB_CONSTRUCT_GROUP</source>
        <translation>Construire un groupe</translation>
    </message>
+    <message>
+        <source>STB_MG_ADAPT</source>
+        <translation>Remaillage avec MG_Adapt</translation>
+    </message>
    <message>
        <source>STB_CONV_TO_QUAD</source>
        <translation>Convertir vers/depuis quadratique</translation>
@ -3707,6 +3911,10 @@ Utilisez le menu &quot;Visualiser une entité&quot; pour les afficher.
        <source>TB_CTRL3D</source>
        <translation>Barre des contrôles des volumes</translation>
    </message>
+    <message>
+        <source>TB_ADAPTATION</source>
+        <translation>Barre de l'adaptation</translation>
+    </message>
    <message>
        <source>TB_MEASUREM</source>
        <translation>Barre des mesures</translation>
@ -3811,6 +4019,10 @@ Utilisez le menu &quot;Visualiser une entité&quot; pour les afficher.
        <source>TOP_CONSTRUCT_GROUP</source>
        <translation>Construire un groupe</translation>
    </message>
+    <message>
+        <source>TOP_MG_ADAPT</source>
+        <translation>Remaillage avec MG_Adapt</translation>
+    </message>
    <message>
        <source>TOP_CONV_TO_QUAD</source>
        <translation>Convertir vers/de quadratique</translation>
--- a/src/SMESH_I/CMakeLists.txt
+++ b/src/SMESH_I/CMakeLists.txt
@ -113,6 +113,7 @@ SET(SMESHEngine_HEADERS
  SMESH_MeshPartDS.hxx
  SMESH.hxx
  SMESH_Component_Generator.hxx
+  MG_ADAPT_i.hxx
 )

 # --- sources ---
@ -141,6 +142,7 @@ SET(SMESHEngine_SOURCES
  SMESH_Measurements_i.cxx
  SMESH_PreMeshInfo.cxx
  SMESH_Component_Generator.cxx
+  MG_ADAPT_i.cxx
 )

 # --- rules ---
--- a/src/SMESH_I/MG_ADAPT_i.cxx
+++ b/src/SMESH_I/MG_ADAPT_i.cxx
@ -0,0 +1,542 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#include "MG_ADAPT_i.hxx"
+
+#include "MG_ADAPT.hxx"
+#include "SMESH_File.hxx"
+#include "SMESH_Gen_i.hxx"
+#include "SMESH_PythonDump.hxx"
+#include "SMESH_TryCatch.hxx"
+
+using namespace SMESH;
+
+void MG_ADAPT_i::copyHypothesisDataToImpl(const SMESH::MgAdaptHypothesisData& from, ::MG_ADAPT::MgAdaptHypothesisData* to) const
+{
+  to->myFileInDir = from.myFileInDir;
+  to->myMeshFileIn = from.myMeshFileIn;
+  to->myMeshFileBackground = from.myMeshFileBackground;
+  to->myOutMeshName = from.myOutMeshName;
+  to->myMeshFileOut = from.myMeshFileOut;
+  to->myFileOutDir = from.myFileOutDir;
+  to->myFileSizeMapDir = from.myFileSizeMapDir;
+  to->myFieldName = from.myFieldName;
+  to->fromMedFile = from.fromMedFile;
+  to->myPublish = from.myPublish;
+  to->myMeshOutMed = from.myMeshOutMed;
+  to->myUseLocalMap = from.myUseLocalMap;
+  to->myUseBackgroundMap = from.myUseBackgroundMap;
+  to->myUseConstantValue = from.myUseConstantValue;
+  to->myConstantValue = from.myConstantValue;
+  to->myTimeStep = from.myTimeStep;
+  to->myRank = from.myRank;
+  to->myUseNoTimeStep = from.myUseNoTimeStep;
+  to->myUseLastTimeStep = from.myUseLastTimeStep;
+  to->myUseChosenTimeStep = from.myUseChosenTimeStep;
+  to->myWorkingDir = from.myWorkingDir;
+  to->myLogFile = from.myLogFile;
+  to->myPrintLogInFile = from.myPrintLogInFile;
+  to->myKeepFiles = from.myKeepFiles;
+  to->myRemoveLogOnSuccess = from.myRemoveLogOnSuccess;
+  to->myVerboseLevel = from.myVerboseLevel;
+}
+void MG_ADAPT_i::copyHypothesisDataFromImpl(const ::MG_ADAPT::MgAdaptHypothesisData* from, SMESH::MgAdaptHypothesisData* to) const
+{
+  to->myFileInDir = CORBA::string_dup(from->myFileInDir.c_str());
+  to->myMeshFileIn = CORBA::string_dup(from->myMeshFileIn.c_str());
+  to->myMeshFileBackground = CORBA::string_dup(from->myMeshFileBackground.c_str());
+  to->myOutMeshName = CORBA::string_dup(from->myOutMeshName.c_str());
+  to->myMeshFileOut = CORBA::string_dup(from->myMeshFileOut.c_str());
+  to->myFileOutDir = CORBA::string_dup(from->myFileOutDir.c_str());
+  to->myFileSizeMapDir = CORBA::string_dup(from->myFileSizeMapDir.c_str());
+  to->myFieldName = CORBA::string_dup(from->myFieldName.c_str());
+  to->fromMedFile = from->fromMedFile;
+  to->myPublish = from->myPublish;
+  to->myMeshOutMed = from->myMeshOutMed;
+  to->myUseLocalMap = from->myUseLocalMap;
+  to->myUseBackgroundMap = from->myUseBackgroundMap;
+  to->myUseConstantValue = from->myUseConstantValue;
+  to->myConstantValue = from->myConstantValue;
+  to->myTimeStep = from->myTimeStep;
+  to->myRank = from->myRank;
+  to->myUseNoTimeStep = from->myUseNoTimeStep;
+  to->myUseLastTimeStep = from->myUseLastTimeStep;
+  to->myUseChosenTimeStep = from->myUseChosenTimeStep;
+  to->myWorkingDir = CORBA::string_dup(from->myWorkingDir.c_str());
+  to->myLogFile = CORBA::string_dup(from->myLogFile.c_str());
+  to->myPrintLogInFile = from->myPrintLogInFile;
+  to->myKeepFiles = from->myKeepFiles;
+  to->myRemoveLogOnSuccess = from->myRemoveLogOnSuccess;
+  to->myVerboseLevel = from->myVerboseLevel;
+}
+
+//=============================================================================
+/*!
+ *  SMESH_Gen_i::CreateMG_ADAPT
+ *
+ *  Create measurement instance
+ */
+//=============================================================================
+
+SMESH::MG_ADAPT_ptr SMESH_Gen_i::CreateMG_ADAPT()
+{
+#ifndef DISABLE_MG_ADAPT
+  SMESH::MG_ADAPT_i* aMGadapt = new SMESH::MG_ADAPT_i();
+  SMESH::MG_ADAPT_var anObj = aMGadapt->_this();
+  return anObj._retn();
+#else
+  return SMESH::MG_ADAPT_ptr();
+#endif
+}
+SMESH::MG_ADAPT_ptr SMESH_Gen_i::CreateAdaptationHypothesis()
+{
+#ifndef DISABLE_MG_ADAPT
+  SMESH::MG_ADAPT_i* aMGadapt = new SMESH::MG_ADAPT_i();
+  SMESH::MG_ADAPT_var anObj = aMGadapt->_this();
+  return anObj._retn();
+#else
+  return SMESH::MG_ADAPT_ptr();
+#endif
+}
+SMESH::MG_ADAPT_OBJECT_ptr SMESH_Gen_i::Adaptation( const char* adaptationType)
+{
+#ifndef DISABLE_MG_ADAPT
+  if (!strcmp(adaptationType, "MG_Adapt"))
+  {
+    SMESH::MG_ADAPT_OBJECT_i* mg_adapt_object = new SMESH::MG_ADAPT_OBJECT_i();
+    SMESH::MG_ADAPT_OBJECT_var anObj = mg_adapt_object->_this();
+    return anObj._retn();
+  }
+#endif
+  return SMESH::MG_ADAPT_OBJECT_ptr();
+}
+//=============================================================================
+/*!
+ *  standard constructor
+ */
+//=============================================================================
+MG_ADAPT_i::MG_ADAPT_i(): SALOME::GenericObj_i( SMESH_Gen_i::GetPOA() )
+{
+  myMgAdapt = new ::MG_ADAPT::MgAdapt();
+}
+
+//=============================================================================
+/*!
+ *  standard destructor
+ */
+//=============================================================================
+MG_ADAPT_i::~MG_ADAPT_i()
+{
+  delete myMgAdapt;
+}
+void MG_ADAPT_i::setData( SMESH::MgAdaptHypothesisData& data)
+{
+  ::MG_ADAPT::MgAdaptHypothesisData* baseData = new ::MG_ADAPT::MgAdaptHypothesisData();
+  copyHypothesisDataToImpl(data, baseData);
+  myMgAdapt->setData(baseData);
+  delete baseData;
+}
+void MG_ADAPT_i::setMedFileIn(const char* str)
+{
+  myMgAdapt->setMedFileIn(str);
+}
+char* MG_ADAPT_i::getMedFileIn()
+{
+  return CORBA::string_dup(myMgAdapt->getMedFileIn().c_str());
+}
+void MG_ADAPT_i::setMedFileOut(const char* str)
+{
+  myMgAdapt->setMedFileOut(str);
+}
+char* MG_ADAPT_i::getMedFileOut()
+{
+  return CORBA::string_dup(myMgAdapt->getMedFileOut().c_str());
+}
+void MG_ADAPT_i::setMeshName(const char* str)
+{
+  myMgAdapt->setMeshName(str);
+}
+char* MG_ADAPT_i::getMeshName()
+{
+  return CORBA::string_dup(myMgAdapt->getMeshName().c_str());
+}
+void MG_ADAPT_i::setMeshNameOut(const char* str)
+{
+  myMgAdapt->setMeshNameOut(str);
+}
+char* MG_ADAPT_i::getMeshNameOut()
+{
+  return CORBA::string_dup(myMgAdapt->getMeshNameOut().c_str());
+}
+void MG_ADAPT_i::setMeshOutMed(bool mybool)
+{
+  myMgAdapt->setMeshOutMed(mybool);
+}
+bool MG_ADAPT_i::getMeshOutMed()
+{
+  return myMgAdapt->getMeshOutMed();
+}
+void MG_ADAPT_i::setPublish(bool mybool)
+{
+  myMgAdapt->setPublish(mybool);
+}
+bool MG_ADAPT_i::getPublish()
+{
+  return myMgAdapt->getPublish();
+}
+void MG_ADAPT_i::setSizeMapFieldName(const char* str)
+{
+  myMgAdapt->setFieldName(str);
+}
+char* MG_ADAPT_i::getSizeMapFieldName()
+{
+  return CORBA::string_dup(myMgAdapt->getFieldName().c_str());
+}
+void MG_ADAPT_i::setTimeStep(CORBA::Long t)
+{
+  myMgAdapt->setTimeStep(t);
+}
+CORBA::Long MG_ADAPT_i::getTimeStep()
+{
+  return myMgAdapt->getTimeStep();
+}
+void MG_ADAPT_i::setTimeStepRank(CORBA::Long t, CORBA::Long r)
+{
+  myMgAdapt->setChosenTimeStepRank();
+  myMgAdapt->setRankTimeStep(t, r);
+}
+CORBA::Long MG_ADAPT_i::getRank()
+{
+  return myMgAdapt->getRank();
+}
+void MG_ADAPT_i::setTimeStepRankLast()
+{
+  myMgAdapt->setTimeStepRankLast();
+}
+void MG_ADAPT_i::setNoTimeStep()
+{
+  myMgAdapt->setNoTimeStep();
+}
+void MG_ADAPT_i::setLogFile(const char* str)
+{
+  myMgAdapt->setLogFile(str);
+}
+char* MG_ADAPT_i::getLogFile()
+{
+  return CORBA::string_dup(myMgAdapt->getLogFile().c_str());
+}
+
+void MG_ADAPT_i::setVerbosityLevel(CORBA::Long v)
+{
+  myMgAdapt->setVerbosityLevel(v);
+}
+CORBA::Long MG_ADAPT_i::getVerbosityLevel()
+{
+  return myMgAdapt->getVerbosityLevel();
+}
+void MG_ADAPT_i::setRemoveOnSuccess(bool mybool)
+{
+  myMgAdapt->setRemoveOnSuccess(mybool);
+}
+bool MG_ADAPT_i::getRemoveOnSuccess()
+{
+  return myMgAdapt->getRemoveOnSuccess();
+}
+SMESH::MgAdaptHypothesisData* MG_ADAPT_i::getData()
+{
+  SMESH::MgAdaptHypothesisData* result = new SMESH::MgAdaptHypothesisData();
+  ::MG_ADAPT::MgAdaptHypothesisData* from =  myMgAdapt->getData();
+  copyHypothesisDataFromImpl(from, result);
+  return result;
+}
+void MG_ADAPT_i::setUseLocalMap(bool mybool)
+{
+  myMgAdapt->setUseLocalMap(mybool);
+}
+bool MG_ADAPT_i::getUseLocalMap()
+{
+  return myMgAdapt->getUseLocalMap();
+}
+void MG_ADAPT_i::setUseBackgroundMap(bool mybool)
+{
+  myMgAdapt->setUseBackgroundMap(mybool);
+}
+bool MG_ADAPT_i::getUseBackgroundMap()
+{
+  return myMgAdapt->getUseBackgroundMap();
+}
+void MG_ADAPT_i::setUseConstantValue(bool mybool)
+{
+  myMgAdapt->setUseConstantValue(mybool);
+}
+bool MG_ADAPT_i::getUseConstantValue()
+{
+  return myMgAdapt->getUseConstantValue();
+}
+void MG_ADAPT_i::setConstantSize(double value)
+{
+  myMgAdapt->setConstantValue(value);
+}
+double MG_ADAPT_i::getConstantSize()
+{
+  return myMgAdapt->getConstantValue();
+}
+void MG_ADAPT_i::setSizeMapFile(const char* str)
+{
+  myMgAdapt->setSizeMapFile(str);
+}
+char* MG_ADAPT_i::getSizeMapFile()
+{
+  return CORBA::string_dup(myMgAdapt->getSizeMapFile().c_str());
+}
+void MG_ADAPT_i::setFromMedFile(bool mybool)
+{
+  myMgAdapt->setFromMedFile(mybool);
+}
+bool MG_ADAPT_i::isFromMedFile()
+{
+  return myMgAdapt->isFromMedFile();
+}
+
+void MG_ADAPT_i::setKeepWorkingFiles(bool mybool)
+{
+  myMgAdapt->setKeepWorkingFiles(mybool);
+}
+bool MG_ADAPT_i::getKeepWorkingFiles()
+{
+  return myMgAdapt->getKeepWorkingFiles();
+}
+
+//~void MG_ADAPT_i::setPrCORBA::LongLogInFile(bool);
+//~bool MG_ADAPT_i::getPrCORBA::LongLogInFile();
+
+void MG_ADAPT_i::setSizeMapType(const char* type)
+{
+  setUseLocalMap(false);
+  setUseBackgroundMap(false);
+  setUseConstantValue(false);
+
+  if (!strcmp("Local", type))
+    setUseLocalMap(true);
+  else if (!strcmp("Background", type))
+    setUseBackgroundMap(true);
+  else
+    setUseConstantValue(true);
+}
+void MG_ADAPT_i::setWorkingDir(const char* dir)
+{
+  myMgAdapt->setWorkingDir(dir);
+}
+char* MG_ADAPT_i::getWorkingDir()
+{
+  return CORBA::string_dup(myMgAdapt->getWorkingDir().c_str());
+}
+bool MG_ADAPT_i::setAll()
+{
+  return myMgAdapt->setAll();
+}
+char* MG_ADAPT_i::getCommandToRun()
+{
+  return CORBA::string_dup(myMgAdapt->getCommandToRun().c_str());
+}
+
+// macro used to initialize excStr by exception description
+// returned by SMESH_CATCH( SMESH::returnError )
+#undef SMESH_CAUGHT
+#define SMESH_CAUGHT excStr =
+
+void MG_ADAPT_i::compute()
+{
+  SMESH::TPythonDump noDumpSoFar;
+
+  errStr = "";
+  std::string excStr;
+  SMESH_TRY;
+
+  myMgAdapt->compute(errStr);
+
+  SMESH_CATCH( SMESH::returnError );
+
+  SMESH_Comment errMsg;
+  if ( !excStr.empty() )
+  {
+    errMsg << "Exception thrown on MG_ADAPT_i::compute invocation with error message \""
+           << errStr << "\" with exception \"" << excStr << "\"";
+  }
+  else if ( !errStr.empty() )
+  {
+    errMsg << "MG_ADAPT_i::compute invocation returned error message \"" << errStr << "\"";
+  }
+  if ( !errMsg.empty() )
+  {
+    THROW_SALOME_CORBA_EXCEPTION( errMsg.c_str(), SALOME::INTERNAL_ERROR);
+  }
+
+  if(myMgAdapt->getPublish())
+  {
+    SMESH_Gen_i* smeshGen_i = SMESH_Gen_i::GetSMESHGen();
+    SMESH::DriverMED_ReadStatus theStatus;
+    smeshGen_i->CreateMeshesFromMED(myMgAdapt->getMedFileOut().c_str(), theStatus);
+  }
+}
+#undef SMESH_CAUGHT
+#define SMESH_CAUGHT
+
+char* MG_ADAPT_i::getErrMsg()
+{
+  return CORBA::string_dup(errStr.c_str());
+}
+char* MG_ADAPT_i::getFileName()
+{
+  return CORBA::string_dup(myMgAdapt->getFileName().c_str());
+}
+char* MG_ADAPT_i::getExeName()
+{
+  return CORBA::string_dup(myMgAdapt->getExeName().c_str());
+}
+void MG_ADAPT_i::copyMgAdaptHypothesisData( const SMESH::MgAdaptHypothesisData& data)
+{
+  ::MG_ADAPT::MgAdaptHypothesisData* baseData = new ::MG_ADAPT::MgAdaptHypothesisData();
+  copyHypothesisDataToImpl(data, baseData);
+  myMgAdapt->copyMgAdaptHypothesisData(baseData);
+  delete baseData;
+}
+
+//~void MG_ADAPT_i::checkDirPath(char*& str)
+//~{
+  //~myMgAdapt->checkDirPath(str);
+//~}
+
+bool MG_ADAPT_i::hasOptionDefined( const char* optionName )
+{
+  return myMgAdapt->hasOptionDefined(optionName);
+}
+void MG_ADAPT_i::setOptionValue(const char* optionName,
+                                const char* optionValue)
+{
+  SMESH_TRY;
+  myMgAdapt->setOptionValue(optionName, optionValue);
+  SMESH_CATCH( SMESH::throwCorbaException );
+}
+
+char* MG_ADAPT_i::getOptionValue(const char* optionName,
+                                 bool&       isDefault)
+{
+  SMESH_TRY;
+  return CORBA::string_dup(myMgAdapt->getOptionValue(optionName, &isDefault).c_str());
+  SMESH_CATCH( SMESH::throwCorbaException );
+  return 0;
+}
+SMESH::string_array* MG_ADAPT_i::getCustomOptionValuesStrVec()
+{
+  SMESH::string_array_var result = new SMESH::string_array();
+  std::vector <std::string> vals = myMgAdapt->getCustomOptionValuesStrVec();
+  result->length((CORBA::ULong) vals.size()) ;
+  for (CORBA::ULong i = 0; i<vals.size(); i++) result[i] = CORBA::string_dup(vals[i].c_str());
+  return result._retn();
+}
+SMESH::string_array*  MG_ADAPT_i::getOptionValuesStrVec()
+{
+
+  SMESH::string_array_var result = new SMESH::string_array();
+  std::vector <std::string> vals = myMgAdapt->getOptionValuesStrVec();
+  result->length((CORBA::ULong) vals.size());
+  for (CORBA::ULong i = 0; i<vals.size(); i++) result[i] = CORBA::string_dup(vals[i].c_str());
+  return result._retn();
+}
+
+void MG_ADAPT_i::setPrintLogInFile(bool mybool)
+{
+  myMgAdapt->setPrintLogInFile(mybool);
+}
+bool MG_ADAPT_i::getPrintLogInFile()
+{
+  return myMgAdapt->getPrintLogInFile();
+}
+//~TOptionValues        MG_ADAPT_i::getOptionValues()       const;
+//~const TOptionValues& MG_ADAPT_i::getCustomOptionValues() const ;
+
+MG_ADAPT_OBJECT_i::MG_ADAPT_OBJECT_i(): SALOME::GenericObj_i( SMESH_Gen_i::GetPOA() )
+{
+  medFileIn="";
+  medFileOut="";
+  medFileBackground="";
+  publish = false;
+  //~myMesh = CORBA::nil;
+}
+
+void MG_ADAPT_OBJECT_i::setMeshIn(SMESH::SMESH_Mesh_ptr theMesh )
+{
+  myMesh = SMESH::SMESH_Mesh::_duplicate(theMesh);
+}
+void MG_ADAPT_OBJECT_i::setMEDFileIn(const char* f)
+{
+  medFileIn =  f;
+}
+void MG_ADAPT_OBJECT_i::setMEDFileOut(const char* f)
+{
+  medFileOut = f;
+}
+void MG_ADAPT_OBJECT_i::setMEDFileBackground(const char* f)
+{
+  medFileBackground = f;
+}
+void MG_ADAPT_OBJECT_i::AddHypothesis(SMESH::MG_ADAPT_ptr mg)
+{
+
+  mg->setMedFileIn(medFileIn.c_str());
+  mg->setMedFileOut(medFileOut.c_str());
+  mg->setSizeMapFile(medFileBackground.c_str());
+  hypothesis = SMESH::MG_ADAPT::_duplicate(mg);
+  hypothesis->Register();
+}
+CORBA::Long MG_ADAPT_OBJECT_i::Compute(bool publish)
+{
+  SMESH::TPythonDump noDumpSoFar;
+
+  if(!checkMeshFileIn()){
+    std::cerr<< "\n Error : Please check the MED file input or mesh input. \n";
+    return -1;
+  }
+  hypothesis->setPublish(publish);
+  hypothesis->compute();
+  return 0;
+}
+
+bool MG_ADAPT_OBJECT_i::checkMeshFileIn()
+{
+  SMESH::TPythonDump noDumpSoFar;
+
+  bool ret = false; // 1 ok , 0 nook
+  if ( !( ret = SMESH_File( medFileIn ).exists()))
+  {
+    if(!myMesh->_is_nil())
+    {
+      bool toOverwrite  = true;
+      bool toFindOutDim = true;
+      medFileIn = (CORBA::String_var( hypothesis->getFileName() )).in();
+      medFileIn+= ".med";
+      myMesh->ExportMED(medFileIn.c_str(), false, -1, toOverwrite, toFindOutDim);
+      hypothesis->setMedFileIn(medFileIn.c_str());
+      ret = true;
+    }
+  }
+
+  return ret;
+}
--- a/src/SMESH_I/MG_ADAPT_i.hxx
+++ b/src/SMESH_I/MG_ADAPT_i.hxx
@ -0,0 +1,172 @@
+// Copyright (C) 2020-2021  CEA/DEN, EDF R&D
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+#ifndef MG_ADAPT_I_HXX
+#define MG_ADAPT_I_HXX
+
+#include "SMESH.hxx"
+
+#include <SALOMEconfig.h>
+#include CORBA_SERVER_HEADER(MG_ADAPT)
+#include "SALOME_GenericObj_i.hh"
+#include <SALOME_GenericObj_wrap.hxx>
+
+#include <string>
+
+namespace MG_ADAPT
+{
+  class MgAdaptHypothesisData;
+  class MgAdapt;
+}
+
+namespace SMESH
+{
+
+class SMESH_I_EXPORT MG_ADAPT_i :
+    public virtual SALOME::GenericObj_i,
+    public virtual POA_SMESH::MG_ADAPT
+{
+public:
+  MG_ADAPT_i();
+  virtual ~MG_ADAPT_i();
+  void setData( SMESH::MgAdaptHypothesisData& data);
+
+  void setMedFileIn(const char* str);
+  char* getMedFileIn();
+
+  void setMedFileOut(const char* str);
+  char* getMedFileOut();
+
+  void setMeshName(const char* str);
+  char* getMeshName();
+
+  void setMeshNameOut(const char* str);
+  char* getMeshNameOut();
+
+  void setMeshOutMed(bool mybool);
+  bool getMeshOutMed();
+
+  void setPublish(bool mybool);
+  bool getPublish();
+
+  void setSizeMapFieldName(const char* str);
+  char* getSizeMapFieldName();
+
+  void setTimeStep(CORBA::Long t);
+  CORBA::Long getTimeStep() ;
+
+  void setTimeStepRank(CORBA::Long t, CORBA::Long r );
+  CORBA::Long getRank();
+
+  void setTimeStepRankLast();
+  void setNoTimeStep();
+
+  void setLogFile(const char* str);
+  char* getLogFile();
+
+  void setVerbosityLevel(CORBA::Long v);
+  CORBA::Long getVerbosityLevel();
+
+  void setRemoveOnSuccess(bool mybool);
+  bool getRemoveOnSuccess();
+
+  SMESH::MgAdaptHypothesisData* getData() ;
+  void setSizeMapType(const char* type);
+  void setUseLocalMap(bool mybool);
+  bool getUseLocalMap();
+
+  void setUseBackgroundMap(bool mybool);
+  bool getUseBackgroundMap();
+
+  void setUseConstantValue(bool mybool);
+  bool getUseConstantValue();
+
+  void setConstantSize(double value);
+  double getConstantSize();
+
+  void setSizeMapFile(const char* str);
+  char* getSizeMapFile();
+
+  void setFromMedFile(bool mybool);
+  bool isFromMedFile();
+
+  void setKeepWorkingFiles(bool mybool);
+  bool getKeepWorkingFiles();
+
+  //~void setPrCORBA::LongLogInFile(bool);
+  //~bool getPrCORBA::LongLogInFile();
+
+  void setWorkingDir(const char* str);
+  char* getWorkingDir() ;
+
+  void setPrintLogInFile(bool mybool);
+  bool getPrintLogInFile();
+
+  bool setAll();
+  char* getCommandToRun() ;
+  void compute();
+  char* getFileName();
+  char* getExeName();
+  void copyMgAdaptHypothesisData( const SMESH::MgAdaptHypothesisData& data ) ;
+  //~void copyMgAdaptHypothesisData( const SMESH::MgAdaptHypothesisData& data ) {
+          //~copyMgAdaptHypothesisData(&data);
+  //~}
+
+  //~void checkDirPath(char*& str);
+
+  bool hasOptionDefined( const char* optionName ) ;
+  void setOptionValue(const char* optionName,
+                      const char* optionValue);
+  char* getOptionValue(const char* optionName,
+                       bool&       isDefault);
+  SMESH::string_array* getCustomOptionValuesStrVec() ;
+  SMESH::string_array* getOptionValuesStrVec() ;
+  void copyHypothesisDataFromImpl(const ::MG_ADAPT::MgAdaptHypothesisData* from, SMESH::MgAdaptHypothesisData* to) const;
+  void copyHypothesisDataToImpl(const SMESH::MgAdaptHypothesisData& from, ::MG_ADAPT::MgAdaptHypothesisData* to) const;
+  //~TOptionValues        getOptionValues()       const;
+  //~const TOptionValues& getCustomOptionValues() const ;
+  char* getErrMsg();
+private:
+  ::MG_ADAPT::MgAdapt* myMgAdapt;
+  std::string          errStr;
+
+};
+
+class SMESH_I_EXPORT MG_ADAPT_OBJECT_i:
+  public virtual SALOME::GenericObj_i,
+  public virtual POA_SMESH::MG_ADAPT_OBJECT {
+public :
+  MG_ADAPT_OBJECT_i();
+  void setMeshIn( SMESH::SMESH_Mesh_ptr theMesh );
+  void setMEDFileIn(const char* f);
+  void setMEDFileOut(const char* f);
+  void setMEDFileBackground(const char* f);
+  void AddHypothesis(SMESH::MG_ADAPT_ptr);
+      CORBA::Long Compute(bool Publish);
+private:
+std::string medFileIn, medFileOut, medFileBackground;
+bool checkMeshFileIn();
+bool publish;
+SMESH::SMESH_Mesh_var myMesh;
+SALOME::GenericObj_wrap<SMESH::MG_ADAPT> hypothesis;
+};
+
+}
+
+#endif // MG_ADAPT_I_HXX
--- a/src/SMESH_I/SMESH_Gen_i.hxx
+++ b/src/SMESH_I/SMESH_Gen_i.hxx
@ -477,6 +477,10 @@ public:

  int CountInPyDump(const TCollection_AsciiString& text);

+  SMESH::MG_ADAPT_ptr CreateMG_ADAPT();
+  SMESH::MG_ADAPT_ptr CreateAdaptationHypothesis();
+  SMESH::MG_ADAPT_OBJECT_ptr Adaptation( const char* adaptationType);
+
  // *****************************************
  // Internal methods
  // *****************************************