PAL0023627: [IMACS] ASERIS: project point to the mesh

[modules/smesh.git] / src / SMESH_SWIG / smeshBuilder.py

diff --git a/src/SMESH_SWIG/smeshBuilder.py b/src/SMESH_SWIG/smeshBuilder.py
old mode 100644 (file)
new mode 100755 (executable)
index 05710d6..e1af32d
--- a/src/SMESH_SWIG/smeshBuilder.py
+++ b/src/SMESH_SWIG/smeshBuilder.py
@@ -24,12 +24,101 @@ import salome
 from salome.geom import geomBuilder
 
 import SMESH # This is necessary for back compatibility
 from salome.geom import geomBuilder
 
 import SMESH # This is necessary for back compatibility

+import omniORB                                       # back compatibility
+SMESH.MED_V2_1    = 11 #omniORB.EnumItem("MED_V2_1", 11) # back compatibility: use number > MED minor version
+SMESH.MED_V2_2    = 12 #omniORB.EnumItem("MED_V2_2", 12) # back compatibility: latest minor will be used
+SMESH.MED_MINOR_0 = 20 # back compatibility
+SMESH.MED_MINOR_1 = 21 # back compatibility
+SMESH.MED_MINOR_2 = 22 # back compatibility
+SMESH.MED_MINOR_3 = 23 # back compatibility
+SMESH.MED_MINOR_4 = 24 # back compatibility
+SMESH.MED_MINOR_5 = 25 # back compatibility
+SMESH.MED_MINOR_6 = 26 # back compatibility
+SMESH.MED_MINOR_7 = 27 # back compatibility
+SMESH.MED_MINOR_8 = 28 # back compatibility
+SMESH.MED_MINOR_9 = 29 # back compatibility
+

 from   SMESH import *
 from   salome.smesh.smesh_algorithm import Mesh_Algorithm
 
 import SALOME
 import SALOMEDS
 import os
 from   SMESH import *
 from   salome.smesh.smesh_algorithm import Mesh_Algorithm
 
 import SALOME
 import SALOMEDS
 import os

+import inspect
+
+# In case the omniORBpy EnumItem class does not fully support Python 3
+# (for instance in version 4.2.1-2), the comparison ordering methods must be
+# defined
+#
+try:
+    SMESH.Entity_Triangle < SMESH.Entity_Quadrangle
+except TypeError:
+    def enumitem_eq(self, other):
+        try:
+            if isinstance(other, omniORB.EnumItem):
+                if other._parent_id == self._parent_id:
+                    return self._v == other._v
+                else:
+                    return self._parent_id == other._parent_id
+            else:
+                return id(self) == id(other)
+        except:
+            return id(self) == id(other)
+
+    def enumitem_lt(self, other):
+        try:
+            if isinstance(other, omniORB.EnumItem):
+                if other._parent_id == self._parent_id:
+                    return self._v < other._v
+                else:
+                    return self._parent_id < other._parent_id
+            else:
+                return id(self) < id(other)
+        except:
+            return id(self) < id(other)
+
+    def enumitem_le(self, other):
+        try:
+            if isinstance(other, omniORB.EnumItem):
+                if other._parent_id == self._parent_id:
+                    return self._v <= other._v
+                else:
+                    return self._parent_id <= other._parent_id
+            else:
+                return id(self) <= id(other)
+        except:
+            return id(self) <= id(other)
+
+    def enumitem_gt(self, other):
+        try:
+            if isinstance(other, omniORB.EnumItem):
+                if other._parent_id == self._parent_id:
+                    return self._v > other._v
+                else:
+                    return self._parent_id > other._parent_id
+            else:
+                return id(self) > id(other)
+        except:
+            return id(self) > id(other)
+
+    def enumitem_ge(self, other):
+        try:
+            if isinstance(other, omniORB.EnumItem):
+                if other._parent_id == self._parent_id:
+                    return self._v >= other._v
+                else:
+                    return self._parent_id >= other._parent_id
+            else:
+                return id(self) >= id(other)
+        except:
+            return id(self) >= id(other)
+
+    omniORB.EnumItem.__eq__ = enumitem_eq
+    omniORB.EnumItem.__lt__ = enumitem_lt
+    omniORB.EnumItem.__le__ = enumitem_le
+    omniORB.EnumItem.__gt__ = enumitem_gt
+    omniORB.EnumItem.__ge__ = enumitem_ge
+

 
 class MeshMeta(type):
     """Private class used to workaround a problem that sometimes isinstance(m, Mesh) returns False
 
 class MeshMeta(type):
     """Private class used to workaround a problem that sometimes isinstance(m, Mesh) returns False


@@ -63,7 +152,7 @@ def ParseParameters(*args):
     Parameters = ""
     hasVariables = False
     varModifFun=None
     Parameters = ""
     hasVariables = False
     varModifFun=None

-    if args and callable( args[-1] ):
+    if args and callable(args[-1]):

         args, varModifFun = args[:-1], args[-1]
     for parameter in args:
 
         args, varModifFun = args[:-1], args[-1]
     for parameter in args:
 


@@ -72,7 +161,7 @@ def ParseParameters(*args):
         if isinstance(parameter,str):
             # check if there is an inexistent variable name
             if not notebook.isVariable(parameter):
         if isinstance(parameter,str):
             # check if there is an inexistent variable name
             if not notebook.isVariable(parameter):

-                raise ValueError, "Variable with name '" + parameter + "' doesn't exist!!!"
+                raise ValueError("Variable with name '" + parameter + "' doesn't exist!!!")

             parameter = notebook.get(parameter)
             hasVariables = True
             if varModifFun:
             parameter = notebook.get(parameter)
             hasVariables = True
             if varModifFun:


@@ -108,8 +197,7 @@ def __initAxisStruct(ax,*args):
     Parameters are stored in AxisStruct.parameters attribute
     """
     if len( args ) != 6:
     Parameters are stored in AxisStruct.parameters attribute
     """
     if len( args ) != 6:

-        raise RuntimeError,\
-              "Bad nb args (%s) passed in SMESH.AxisStruct(x,y,z,dx,dy,dz)"%(len( args ))
+        raise RuntimeError("Bad nb args (%s) passed in SMESH.AxisStruct(x,y,z,dx,dy,dz)"%(len( args )))

     ax.x, ax.y, ax.z, ax.vx, ax.vy, ax.vz, ax.parameters,hasVars = ParseParameters(*args)
     pass
 SMESH.AxisStruct.__init__ = __initAxisStruct
     ax.x, ax.y, ax.z, ax.vx, ax.vy, ax.vz, ax.parameters,hasVars = ParseParameters(*args)
     pass
 SMESH.AxisStruct.__init__ = __initAxisStruct


@@ -141,13 +229,8 @@ def GetName(obj):
         except:
             ior = None
         if ior:
         except:
             ior = None
         if ior:

-            # CORBA object
-            studies = salome.myStudyManager.GetOpenStudies()
-            for sname in studies:
-                s = salome.myStudyManager.GetStudyByName(sname)
-                if not s: continue
-                sobj = s.FindObjectIOR(ior)
-                if not sobj: continue
+            sobj = salome.myStudy.FindObjectIOR(ior)
+            if sobj:

                 return sobj.GetName()
             if hasattr(obj, "GetName"):
                 # unknown CORBA object, having GetName() method
                 return sobj.GetName()
             if hasattr(obj, "GetName"):
                 # unknown CORBA object, having GetName() method


@@ -160,7 +243,7 @@ def GetName(obj):
             # unknown non-CORBA object, having GetName() method
             return obj.GetName()
         pass
             # unknown non-CORBA object, having GetName() method
             return obj.GetName()
         pass

-    raise RuntimeError, "Null or invalid object"
+    raise RuntimeError("Null or invalid object")

 
 def TreatHypoStatus(status, hypName, geomName, isAlgo, mesh):
     """
 
 def TreatHypoStatus(status, hypName, geomName, isAlgo, mesh):
     """


@@ -173,21 +256,21 @@ def TreatHypoStatus(status, hypName, geomName, isAlgo, mesh):
         pass
     reason = ""
     if hasattr( status, "__getitem__" ):
         pass
     reason = ""
     if hasattr( status, "__getitem__" ):

-        status,reason = status[0],status[1]
-    if status == HYP_UNKNOWN_FATAL :
+        status, reason = status[0], status[1]
+    if status == HYP_UNKNOWN_FATAL:

         reason = "for unknown reason"
         reason = "for unknown reason"

-    elif status == HYP_INCOMPATIBLE :
+    elif status == HYP_INCOMPATIBLE:

         reason = "this hypothesis mismatches the algorithm"
         reason = "this hypothesis mismatches the algorithm"

-    elif status == HYP_NOTCONFORM :
+    elif status == HYP_NOTCONFORM:

         reason = "a non-conform mesh would be built"
         reason = "a non-conform mesh would be built"

-    elif status == HYP_ALREADY_EXIST :
+    elif status == HYP_ALREADY_EXIST:

         if isAlgo: return # it does not influence anything
         reason = hypType + " of the same dimension is already assigned to this shape"
         if isAlgo: return # it does not influence anything
         reason = hypType + " of the same dimension is already assigned to this shape"

-    elif status == HYP_BAD_DIM :
+    elif status == HYP_BAD_DIM:

         reason = hypType + " mismatches the shape"
     elif status == HYP_CONCURRENT :
         reason = "there are concurrent hypotheses on sub-shapes"
         reason = hypType + " mismatches the shape"
     elif status == HYP_CONCURRENT :
         reason = "there are concurrent hypotheses on sub-shapes"

-    elif status == HYP_BAD_SUBSHAPE :
+    elif status == HYP_BAD_SUBSHAPE:

         reason = "the shape is neither the main one, nor its sub-shape, nor a valid group"
     elif status == HYP_BAD_GEOMETRY:
         reason = "the algorithm is not applicable to this geometry"
         reason = "the shape is neither the main one, nor its sub-shape, nor a valid group"
     elif status == HYP_BAD_GEOMETRY:
         reason = "the algorithm is not applicable to this geometry"


@@ -209,25 +292,22 @@ def TreatHypoStatus(status, hypName, geomName, isAlgo, mesh):
             if meshName and meshName != NO_NAME:
                 where = '"%s" shape in "%s" mesh ' % ( geomName, meshName )
     if status < HYP_UNKNOWN_FATAL and where:
             if meshName and meshName != NO_NAME:
                 where = '"%s" shape in "%s" mesh ' % ( geomName, meshName )
     if status < HYP_UNKNOWN_FATAL and where:

-        print '"%s" was assigned to %s but %s' %( hypName, where, reason )
+        print('"%s" was assigned to %s but %s' %( hypName, where, reason ))

     elif where:
     elif where:

-        print '"%s" was not assigned to %s : %s' %( hypName, where, reason )
+        print('"%s" was not assigned to %s : %s' %( hypName, where, reason ))

     else:
     else:

-        print '"%s" was not assigned : %s' %( hypName, reason )
+        print('"%s" was not assigned : %s' %( hypName, reason ))

         pass
 
 def AssureGeomPublished(mesh, geom, name=''):
     """
     Private method. Add geom (sub-shape of the main shape) into the study if not yet there
     """
         pass
 
 def AssureGeomPublished(mesh, geom, name=''):
     """
     Private method. Add geom (sub-shape of the main shape) into the study if not yet there
     """

+    if not mesh.smeshpyD.IsEnablePublish():
+        return

     if not isinstance( geom, geomBuilder.GEOM._objref_GEOM_Object ):
         return
     if not isinstance( geom, geomBuilder.GEOM._objref_GEOM_Object ):
         return

-    if not geom.GetStudyEntry() and \
-           mesh.smeshpyD.GetCurrentStudy():
-        ## set the study
-        studyID = mesh.smeshpyD.GetCurrentStudy()._get_StudyId()
-        if studyID != mesh.geompyD.myStudyId:
-            mesh.geompyD.init_geom( mesh.smeshpyD.GetCurrentStudy())
+    if not geom.GetStudyEntry():

         ## get a name
         if not name and geom.GetShapeType() != geomBuilder.GEOM.COMPOUND:
             # for all groups SubShapeName() return "Compound_-1"
         ## get a name
         if not name and geom.GetShapeType() != geomBuilder.GEOM.COMPOUND:
             # for all groups SubShapeName() return "Compound_-1"


@@ -245,7 +325,7 @@ def FirstVertexOnCurve(mesh, edge):
     """
     vv = mesh.geompyD.SubShapeAll( edge, geomBuilder.geomBuilder.ShapeType["VERTEX"])
     if not vv:
     """
     vv = mesh.geompyD.SubShapeAll( edge, geomBuilder.geomBuilder.ShapeType["VERTEX"])
     if not vv:

-        raise TypeError, "Given object has no vertices"
+        raise TypeError("Given object has no vertices")

     if len( vv ) == 1: return vv[0]
     v0   = mesh.geompyD.MakeVertexOnCurve(edge,0.)
     xyz  = mesh.geompyD.PointCoordinates( v0 ) # coords of the first vertex
     if len( vv ) == 1: return vv[0]
     v0   = mesh.geompyD.MakeVertexOnCurve(edge,0.)
     xyz  = mesh.geompyD.PointCoordinates( v0 ) # coords of the first vertex


@@ -269,7 +349,7 @@ engine = None
 doLcc = False
 created = False
 
 doLcc = False
 created = False
 

-class smeshBuilder(object, SMESH._objref_SMESH_Gen):
+class smeshBuilder( SMESH._objref_SMESH_Gen, object ):

     """
     This class allows to create, load or manipulate meshes.
     It has a set of methods to create, load or copy meshes, to combine several meshes, etc.
     """
     This class allows to create, load or manipulate meshes.
     It has a set of methods to create, load or copy meshes, to combine several meshes, etc.


@@ -288,16 +368,16 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
     PrecisionConfusion = smeshPrecisionConfusion
 
     # TopAbs_State enumeration
     PrecisionConfusion = smeshPrecisionConfusion
 
     # TopAbs_State enumeration

-    [TopAbs_IN, TopAbs_OUT, TopAbs_ON, TopAbs_UNKNOWN] = range(4)
+    [TopAbs_IN, TopAbs_OUT, TopAbs_ON, TopAbs_UNKNOWN] = list(range(4))

 
     # Methods of splitting a hexahedron into tetrahedra
     Hex_5Tet, Hex_6Tet, Hex_24Tet, Hex_2Prisms, Hex_4Prisms = 1, 2, 3, 1, 2
 
 
     # Methods of splitting a hexahedron into tetrahedra
     Hex_5Tet, Hex_6Tet, Hex_24Tet, Hex_2Prisms, Hex_4Prisms = 1, 2, 3, 1, 2
 

-    def __new__(cls):
+    def __new__(cls, *args):

         global engine
         global smeshInst
         global doLcc
         global engine
         global smeshInst
         global doLcc

-        #print "==== __new__", engine, smeshInst, doLcc
+        #print("==== __new__", engine, smeshInst, doLcc)

 
         if smeshInst is None:
             # smesh engine is either retrieved from engine, or created
 
         if smeshInst is None:
             # smesh engine is either retrieved from engine, or created


@@ -312,30 +392,31 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                     # FindOrLoadComponent called:
                     # 1. CORBA resolution of server
                     # 2. the __new__ method is called again
                     # FindOrLoadComponent called:
                     # 1. CORBA resolution of server
                     # 2. the __new__ method is called again

-                    #print "==== smeshInst = lcc.FindOrLoadComponent ", engine, smeshInst, doLcc
+                    #print("==== smeshInst = lcc.FindOrLoadComponent ", engine, smeshInst, doLcc)

                     smeshInst = salome.lcc.FindOrLoadComponent( "FactoryServer", "SMESH" )
             else:
                 # FindOrLoadComponent not called
                 if smeshInst is None:
                     # smeshBuilder instance is created from lcc.FindOrLoadComponent
                     smeshInst = salome.lcc.FindOrLoadComponent( "FactoryServer", "SMESH" )
             else:
                 # FindOrLoadComponent not called
                 if smeshInst is None:
                     # smeshBuilder instance is created from lcc.FindOrLoadComponent

-                    #print "==== smeshInst = super(smeshBuilder,cls).__new__(cls) ", engine, smeshInst, doLcc
+                    #print("==== smeshInst = super(smeshBuilder,cls).__new__(cls) ", engine, smeshInst, doLcc)

                     smeshInst = super(smeshBuilder,cls).__new__(cls)
                 else:
                     # smesh engine not created: existing engine found
                     smeshInst = super(smeshBuilder,cls).__new__(cls)
                 else:
                     # smesh engine not created: existing engine found

-                    #print "==== existing ", engine, smeshInst, doLcc
+                    #print("==== existing ", engine, smeshInst, doLcc)

                     pass
                     pass

-            #print "====1 ", smeshInst
+            #print("====1 ", smeshInst)

             return smeshInst
 
             return smeshInst
 

-        #print "====2 ", smeshInst
+        #print("====2 ", smeshInst)

         return smeshInst
 
         return smeshInst
 

-    def __init__(self):
+    def __init__(self, *args):

         global created
         global created

-        #print "--------------- smeshbuilder __init__ ---", created
+        #print("--------------- smeshbuilder __init__ ---", created)

         if not created:
         if not created:

-          created = True
-          SMESH._objref_SMESH_Gen.__init__(self)
+            created = True
+            SMESH._objref_SMESH_Gen.__init__(self, *args)
+

 
     def DumpPython(self, theStudy, theIsPublished=True, theIsMultiFile=True):
         """
 
     def DumpPython(self, theStudy, theIsPublished=True, theIsMultiFile=True):
         """


@@ -358,16 +439,13 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
         else:            val = "false"
         SMESH._objref_SMESH_Gen.SetOption(self, "historical_python_dump", val)
 
         else:            val = "false"
         SMESH._objref_SMESH_Gen.SetOption(self, "historical_python_dump", val)
 

-    def init_smesh(self,theStudy,geompyD = None):
-        """
-        Set the current study and Geometry component
+    def init_smesh(self,geompyD = None):

         """
         """

-
-        #print "init_smesh"
-        self.SetCurrentStudy(theStudy,geompyD)
-        if theStudy:
-            global notebook
-            notebook.myStudy = theStudy
+        Set Geometry component
+        """    
+        #print("init_smesh")
+        self.UpdateStudy(geompyD)
+        notebook.myStudy = salome.myStudy

 
     def Mesh(self, obj=0, name=0):
         """
 
     def Mesh(self, obj=0, name=0):
         """


@@ -395,7 +473,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
 
         if isinstance(obj,str):
             obj,name = name,obj
 
         if isinstance(obj,str):
             obj,name = name,obj

-        return Mesh(self,self.geompyD,obj,name)
+        return Mesh(self, self.geompyD, obj, name)

 
     def EnumToLong(self,theItem):
         """
 
     def EnumToLong(self,theItem):
         """


@@ -422,7 +500,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
         elif isinstance(c, str):
             val = c
         else:
         elif isinstance(c, str):
             val = c
         else:

-            raise ValueError, "Color value should be of string or SALOMEDS.Color type"
+            raise ValueError("Color value should be of string or SALOMEDS.Color type")

         return val
 
     def GetPointStruct(self,theVertex):
         return val
 
     def GetPointStruct(self,theVertex):


@@ -452,7 +530,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
 
         vertices = self.geompyD.SubShapeAll( theVector, geomBuilder.geomBuilder.ShapeType["VERTEX"] )
         if(len(vertices) != 2):
 
         vertices = self.geompyD.SubShapeAll( theVector, geomBuilder.geomBuilder.ShapeType["VERTEX"] )
         if(len(vertices) != 2):

-            print "Error: vector object is incorrect."
+            print("Error: vector object is incorrect.")

             return None
         p1 = self.geompyD.PointCoordinates(vertices[0])
         p2 = self.geompyD.PointCoordinates(vertices[1])
             return None
         p1 = self.geompyD.PointCoordinates(vertices[0])
         p2 = self.geompyD.PointCoordinates(vertices[1])


@@ -544,37 +622,37 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
 
         return SMESH._objref_SMESH_Gen.IsEmbeddedMode(self)
 
 
         return SMESH._objref_SMESH_Gen.IsEmbeddedMode(self)
 

-    def SetCurrentStudy( self, theStudy, geompyD = None ):
+    def UpdateStudy( self, geompyD = None  ):

         """
         """

-        Set the current study. Calling SetCurrentStudy( None ) allows to
-        switch **off** automatic pubilishing in the Study of mesh objects.
+        Update the current study. Calling UpdateStudy() allows to
+        update meshes at switching GEOM->SMESH

         """
         """

-
+        #self.UpdateStudy()

         if not geompyD:
             from salome.geom import geomBuilder
             geompyD = geomBuilder.geom
         if not geompyD:
             from salome.geom import geomBuilder
             geompyD = geomBuilder.geom

+            if not geompyD:
+                geompyD = geomBuilder.New()

             pass
         self.geompyD=geompyD
         self.SetGeomEngine(geompyD)
             pass
         self.geompyD=geompyD
         self.SetGeomEngine(geompyD)

-        SMESH._objref_SMESH_Gen.SetCurrentStudy(self,theStudy)
-        global notebook
-        if theStudy:
-            notebook = salome_notebook.NoteBook( theStudy )
-        else:
-            notebook = salome_notebook.NoteBook( salome_notebook.PseudoStudyForNoteBook() )
-        if theStudy:
-            sb = theStudy.NewBuilder()
-            sc = theStudy.FindComponent("SMESH")
-            if sc: sb.LoadWith(sc, self)
-            pass
+        SMESH._objref_SMESH_Gen.UpdateStudy(self)
+        sb = salome.myStudy.NewBuilder()
+        sc = salome.myStudy.FindComponent("SMESH")
+        if sc:
+            sb.LoadWith(sc, self)

         pass
         pass

-
-    def GetCurrentStudy(self):
+    
+    def SetEnablePublish( self, theIsEnablePublish ):

         """
         """

-        Get the current study
+        Set enable publishing in the study. Calling SetEnablePublish( False ) allows to
+        switch **off** publishing in the Study of mesh objects.

         """
         """

+       #self.SetEnablePublish(theIsEnablePublish)
+        SMESH._objref_SMESH_Gen.SetEnablePublish(self,theIsEnablePublish)
+        global notebook
+        notebook = salome_notebook.NoteBook( theIsEnablePublish )

 
 

-        return SMESH._objref_SMESH_Gen.GetCurrentStudy(self)

 
     def CreateMeshesFromUNV( self,theFileName ):
         """
 
     def CreateMeshesFromUNV( self,theFileName ):
         """


@@ -650,7 +728,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
         aSmeshMesh, error = SMESH._objref_SMESH_Gen.CreateMeshesFromGMF(self,
                                                                         theFileName,
                                                                         True)
         aSmeshMesh, error = SMESH._objref_SMESH_Gen.CreateMeshesFromGMF(self,
                                                                         theFileName,
                                                                         True)

-        if error.comment: print "*** CreateMeshesFromGMF() errors:\n", error.comment
+        if error.comment: print("*** CreateMeshesFromGMF() errors:\n", error.comment)

         return Mesh(self, self.geompyD, aSmeshMesh), error
 
     def Concatenate( self, meshes, uniteIdenticalGroups,
         return Mesh(self, self.geompyD, aSmeshMesh), error
 
     def Concatenate( self, meshes, uniteIdenticalGroups,


@@ -704,11 +782,46 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                 an instance of class :class:`Mesh`
         """
 
                 an instance of class :class:`Mesh`
         """
 

-        if (isinstance( meshPart, Mesh )):
+        if isinstance( meshPart, Mesh ):

             meshPart = meshPart.GetMesh()
         mesh = SMESH._objref_SMESH_Gen.CopyMesh( self,meshPart,meshName,toCopyGroups,toKeepIDs )
         return Mesh(self, self.geompyD, mesh)
 
             meshPart = meshPart.GetMesh()
         mesh = SMESH._objref_SMESH_Gen.CopyMesh( self,meshPart,meshName,toCopyGroups,toKeepIDs )
         return Mesh(self, self.geompyD, mesh)
 

+    def CopyMeshWithGeom( self, sourceMesh, newGeom, meshName="", toCopyGroups=True,
+                          toReuseHypotheses=True, toCopyElements=True):
+        """
+        Create a mesh by copying a mesh definition (hypotheses and groups) to a new geometry.
+        It is supposed that the new geometry is a modified geometry of *sourceMesh*.
+        To facilitate and speed up the operation, consider using
+        "Set presentation parameters and sub-shapes from arguments" option in
+        a dialog of geometrical operation used to create the new geometry.
+
+        Parameters:
+                sourceMesh: the mesh to copy definition of.
+                newGeom: the new geomtry.
+                meshName: an optional name of the new mesh. If omitted, the mesh name is kept.
+                toCopyGroups: to create groups in the new mesh.
+                toReuseHypotheses: to reuse hypotheses of the *sourceMesh*.
+                toCopyElements: to copy mesh elements present on non-modified sub-shapes of 
+                                *sourceMesh*.
+        Returns:
+                tuple ( ok, newMesh, newGroups, newSubMeshes, newHypotheses, invalidEntries )
+                *invalidEntries* are study entries of objects whose
+                counterparts are not found in the *newGeom*, followed by entries
+                of mesh sub-objects that are invalid because they depend on a not found
+                preceeding sub-shape
+        """
+        if isinstance( sourceMesh, Mesh ):
+            sourceMesh = sourceMesh.GetMesh()
+
+        ok, newMesh, newGroups, newSubMeshes, newHypotheses, invalidEntries = \
+           SMESH._objref_SMESH_Gen.CopyMeshWithGeom( self, sourceMesh, newGeom, meshName,
+                                                     toCopyGroups,
+                                                     toReuseHypotheses,
+                                                     toCopyElements)
+        return ( ok, Mesh(self, self.geompyD, newMesh),
+                 newGroups, newSubMeshes, newHypotheses, invalidEntries )
+

     def GetSubShapesId( self, theMainObject, theListOfSubObjects ):
         """
         Return IDs of sub-shapes
     def GetSubShapesId( self, theMainObject, theListOfSubObjects ):
         """
         Return IDs of sub-shapes


@@ -797,7 +910,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
         """
 
         if not CritType in SMESH.FunctorType._items:
         """
 
         if not CritType in SMESH.FunctorType._items:

-            raise TypeError, "CritType should be of SMESH.FunctorType"
+            raise TypeError("CritType should be of SMESH.FunctorType")

         aCriterion               = self.GetEmptyCriterion()
         aCriterion.TypeOfElement = elementType
         aCriterion.Type          = self.EnumToLong(CritType)
         aCriterion               = self.GetEmptyCriterion()
         aCriterion.TypeOfElement = elementType
         aCriterion.Type          = self.EnumToLong(CritType)


@@ -832,7 +945,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
             elif isinstance( aThreshold, str ):
                 aCriterion.ThresholdStr = aThreshold
             else:
             elif isinstance( aThreshold, str ):
                 aCriterion.ThresholdStr = aThreshold
             else:

-                raise TypeError, "The Threshold should be a shape."
+                raise TypeError("The Threshold should be a shape.")

             if isinstance(UnaryOp,float):
                 aCriterion.Tolerance = UnaryOp
                 UnaryOp = FT_Undefined
             if isinstance(UnaryOp,float):
                 aCriterion.Tolerance = UnaryOp
                 UnaryOp = FT_Undefined


@@ -841,10 +954,10 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
             # Check that Threshold is a group
             if isinstance(aThreshold, SMESH._objref_SMESH_GroupBase):
                 if aThreshold.GetType() != elementType:
             # Check that Threshold is a group
             if isinstance(aThreshold, SMESH._objref_SMESH_GroupBase):
                 if aThreshold.GetType() != elementType:

-                    raise ValueError, "Group type mismatches Element type"
+                    raise ValueError("Group type mismatches Element type")

                 aCriterion.ThresholdStr = aThreshold.GetName()
                 aCriterion.ThresholdID  = salome.orb.object_to_string( aThreshold )
                 aCriterion.ThresholdStr = aThreshold.GetName()
                 aCriterion.ThresholdID  = salome.orb.object_to_string( aThreshold )

-                study = self.GetCurrentStudy()
+                study = salome.myStudy

                 if study:
                     so = study.FindObjectIOR( aCriterion.ThresholdID )
                     if so:
                 if study:
                     so = study.FindObjectIOR( aCriterion.ThresholdID )
                     if so:


@@ -852,13 +965,13 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                         if entry:
                             aCriterion.ThresholdID = entry
             else:
                         if entry:
                             aCriterion.ThresholdID = entry
             else:

-                raise TypeError, "The Threshold should be a Mesh Group"
+                raise TypeError("The Threshold should be a Mesh Group")

         elif CritType == FT_RangeOfIds:
             # Check that Threshold is string
             if isinstance(aThreshold, str):
                 aCriterion.ThresholdStr = aThreshold
             else:
         elif CritType == FT_RangeOfIds:
             # Check that Threshold is string
             if isinstance(aThreshold, str):
                 aCriterion.ThresholdStr = aThreshold
             else:

-                raise TypeError, "The Threshold should be a string."
+                raise TypeError("The Threshold should be a string.")

         elif CritType == FT_CoplanarFaces:
             # Check the Threshold
             if isinstance(aThreshold, int):
         elif CritType == FT_CoplanarFaces:
             # Check the Threshold
             if isinstance(aThreshold, int):


@@ -866,11 +979,10 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
             elif isinstance(aThreshold, str):
                 ID = int(aThreshold)
                 if ID < 1:
             elif isinstance(aThreshold, str):
                 ID = int(aThreshold)
                 if ID < 1:

-                    raise ValueError, "Invalid ID of mesh face: '%s'"%aThreshold
+                    raise ValueError("Invalid ID of mesh face: '%s'"%aThreshold)

                 aCriterion.ThresholdID = aThreshold
             else:
                 aCriterion.ThresholdID = aThreshold
             else:

-                raise TypeError,\
-                      "The Threshold should be an ID of mesh face and not '%s'"%aThreshold
+                raise TypeError("The Threshold should be an ID of mesh face and not '%s'"%aThreshold)

         elif CritType == FT_ConnectedElements:
             # Check the Threshold
             if isinstance(aThreshold, geomBuilder.GEOM._objref_GEOM_Object): # shape
         elif CritType == FT_ConnectedElements:
             # Check the Threshold
             if isinstance(aThreshold, geomBuilder.GEOM._objref_GEOM_Object): # shape


@@ -884,7 +996,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                 aCriterion.Threshold = aThreshold
             elif isinstance(aThreshold, list): # 3 point coordinates
                 if len( aThreshold ) < 3:
                 aCriterion.Threshold = aThreshold
             elif isinstance(aThreshold, list): # 3 point coordinates
                 if len( aThreshold ) < 3:

-                    raise ValueError, "too few point coordinates, must be 3"
+                    raise ValueError("too few point coordinates, must be 3")

                 aCriterion.ThresholdStr = " ".join( [str(c) for c in aThreshold[:3]] )
             elif isinstance(aThreshold, str):
                 if aThreshold.isdigit():
                 aCriterion.ThresholdStr = " ".join( [str(c) for c in aThreshold[:3]] )
             elif isinstance(aThreshold, str):
                 if aThreshold.isdigit():


@@ -892,9 +1004,8 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                 else:
                     aCriterion.ThresholdStr = aThreshold # hope that it's point coordinates
             else:
                 else:
                     aCriterion.ThresholdStr = aThreshold # hope that it's point coordinates
             else:

-                raise TypeError,\
-                      "The Threshold should either a VERTEX, or a node ID, "\
-                      "or a list of point coordinates and not '%s'"%aThreshold
+                raise TypeError("The Threshold should either a VERTEX, or a node ID, "\
+                      "or a list of point coordinates and not '%s'"%aThreshold)

         elif CritType == FT_ElemGeomType:
             # Check the Threshold
             try:
         elif CritType == FT_ElemGeomType:
             # Check the Threshold
             try:


@@ -904,7 +1015,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                 if isinstance(aThreshold, int):
                     aCriterion.Threshold = aThreshold
                 else:
                 if isinstance(aThreshold, int):
                     aCriterion.Threshold = aThreshold
                 else:

-                    raise TypeError, "The Threshold should be an integer or SMESH.GeometryType."
+                    raise TypeError("The Threshold should be an integer or SMESH.GeometryType.")

                 pass
             pass
         elif CritType == FT_EntityType:
                 pass
             pass
         elif CritType == FT_EntityType:


@@ -916,7 +1027,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                 if isinstance(aThreshold, int):
                     aCriterion.Threshold = aThreshold
                 else:
                 if isinstance(aThreshold, int):
                     aCriterion.Threshold = aThreshold
                 else:

-                    raise TypeError, "The Threshold should be an integer or SMESH.EntityType."
+                    raise TypeError("The Threshold should be an integer or SMESH.EntityType.")

                 pass
             pass
 
                 pass
             pass
 


@@ -925,7 +1036,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
             try:
                 aCriterion.ThresholdStr = self.ColorToString(aThreshold)
             except:
             try:
                 aCriterion.ThresholdStr = self.ColorToString(aThreshold)
             except:

-                raise TypeError, "The threshold value should be of SALOMEDS.Color type"
+                raise TypeError("The threshold value should be of SALOMEDS.Color type")

             pass
         elif CritType in [FT_FreeBorders, FT_FreeEdges, FT_FreeNodes, FT_FreeFaces,
                           FT_LinearOrQuadratic, FT_BadOrientedVolume,
             pass
         elif CritType in [FT_FreeBorders, FT_FreeEdges, FT_FreeNodes, FT_FreeFaces,
                           FT_LinearOrQuadratic, FT_BadOrientedVolume,


@@ -943,7 +1054,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
                 aThreshold = float(aThreshold)
                 aCriterion.Threshold = aThreshold
             except:
                 aThreshold = float(aThreshold)
                 aCriterion.Threshold = aThreshold
             except:

-                raise TypeError, "The Threshold should be a number."
+                raise TypeError("The Threshold should be a number.")

                 return None
 
         if Threshold ==  FT_LogicalNOT or UnaryOp ==  FT_LogicalNOT:
                 return None
 
         if Threshold ==  FT_LogicalNOT or UnaryOp ==  FT_LogicalNOT:


@@ -1075,7 +1186,7 @@ class smeshBuilder(object, SMESH._objref_SMESH_Gen):
         elif theCriterion == FT_BallDiameter:
             functor = aFilterMgr.CreateBallDiameter()
         else:
         elif theCriterion == FT_BallDiameter:
             functor = aFilterMgr.CreateBallDiameter()
         else:

-            print "Error: given parameter is not numerical functor type."
+            print("Error: given parameter is not numerical functor type.")

         aFilterMgr.UnRegister()
         return functor
 
         aFilterMgr.UnRegister()
         return functor
 


@@ -1339,7 +1450,7 @@ omniORB.registerObjref(SMESH._objref_SMESH_Gen._NP_RepositoryId, smeshBuilder)
 """Registering the new proxy for SMESH.SMESH_Gen"""
 
 
 """Registering the new proxy for SMESH.SMESH_Gen"""
 
 

-def New( study, instance=None, instanceGeom=None):
+def New( instance=None, instanceGeom=None):

     """
     Create a new smeshBuilder instance. The smeshBuilder class provides the Python
     interface to create or load meshes.
     """
     Create a new smeshBuilder instance. The smeshBuilder class provides the Python
     interface to create or load meshes.


@@ -1349,10 +1460,9 @@ def New( study, instance=None, instanceGeom=None):
         import salome
         salome.salome_init()
         from salome.smesh import smeshBuilder
         import salome
         salome.salome_init()
         from salome.smesh import smeshBuilder

-        smesh = smeshBuilder.New(salome.myStudy)
+        smesh = smeshBuilder.New()

 
     Parameters:
 
     Parameters:

-        study:         SALOME study, generally obtained by salome.myStudy.

         instance:      CORBA proxy of SMESH Engine. If None, the default Engine is used.
         instanceGeom:  CORBA proxy of GEOM  Engine. If None, the default Engine is used.
     Returns:
         instance:      CORBA proxy of SMESH Engine. If None, the default Engine is used.
         instanceGeom:  CORBA proxy of GEOM  Engine. If None, the default Engine is used.
     Returns:


@@ -1361,33 +1471,38 @@ def New( study, instance=None, instanceGeom=None):
     global engine
     global smeshInst
     global doLcc
     global engine
     global smeshInst
     global doLcc

+    if instance and isinstance( instance, SALOMEDS._objref_Study ):
+        import sys
+        sys.stderr.write("Warning: 'study' argument is no more needed in smeshBuilder.New(). Consider updating your script!!!\n\n")
+        instance = None

     engine = instance
     if engine is None:
     engine = instance
     if engine is None:

-      doLcc = True
+        doLcc = True

     smeshInst = smeshBuilder()
     assert isinstance(smeshInst,smeshBuilder), "Smesh engine class is %s but should be smeshBuilder.smeshBuilder. Import salome.smesh.smeshBuilder before creating the instance."%smeshInst.__class__
     smeshInst = smeshBuilder()
     assert isinstance(smeshInst,smeshBuilder), "Smesh engine class is %s but should be smeshBuilder.smeshBuilder. Import salome.smesh.smeshBuilder before creating the instance."%smeshInst.__class__

-    smeshInst.init_smesh(study, instanceGeom)
+    smeshInst.init_smesh(instanceGeom)

     return smeshInst
 
 
 # Public class: Mesh
 # ==================
 
     return smeshInst
 
 
 # Public class: Mesh
 # ==================
 

-class Mesh:
+
+class Mesh(metaclass = MeshMeta):

     """
     This class allows defining and managing a mesh.
     It has a set of methods to build a mesh on the given geometry, including the definition of sub-meshes.
     It also has methods to define groups of mesh elements, to modify a mesh (by addition of
     new nodes and elements and by changing the existing entities), to get information
     about a mesh and to export a mesh in different formats.
     """
     This class allows defining and managing a mesh.
     It has a set of methods to build a mesh on the given geometry, including the definition of sub-meshes.
     It also has methods to define groups of mesh elements, to modify a mesh (by addition of
     new nodes and elements and by changing the existing entities), to get information
     about a mesh and to export a mesh in different formats.

-    """
-    __metaclass__ = MeshMeta
+    """    

 
     geom = 0
     mesh = 0
     editor = 0
 
     def __init__(self, smeshpyD, geompyD, obj=0, name=0):
 
     geom = 0
     mesh = 0
     editor = 0
 
     def __init__(self, smeshpyD, geompyD, obj=0, name=0):

+

         """
         Constructor
 
         """
         Constructor
 


@@ -1401,8 +1516,8 @@ class Mesh:
                 name: Study name of the mesh
         """
 
                 name: Study name of the mesh
         """
 

-        self.smeshpyD=smeshpyD
-        self.geompyD=geompyD
+        self.smeshpyD = smeshpyD
+        self.geompyD = geompyD

         if obj is None:
             obj = 0
         objHasName = False
         if obj is None:
             obj = 0
         objHasName = False


@@ -1411,12 +1526,9 @@ class Mesh:
                 self.geom = obj
                 objHasName = True
                 # publish geom of mesh (issue 0021122)
                 self.geom = obj
                 objHasName = True
                 # publish geom of mesh (issue 0021122)

-                if not self.geom.GetStudyEntry() and smeshpyD.GetCurrentStudy():
+                if not self.geom.GetStudyEntry():

                     objHasName = False
                     objHasName = False

-                    studyID = smeshpyD.GetCurrentStudy()._get_StudyId()
-                    if studyID != geompyD.myStudyId:
-                        geompyD.init_geom( smeshpyD.GetCurrentStudy())
-                        pass
+                    geompyD.init_geom()

                     if name:
                         geo_name = name + " shape"
                     else:
                     if name:
                         geo_name = name + " shape"
                     else:


@@ -1523,7 +1635,7 @@ class Mesh:
 
                    algo1D = mesh.Segment(geom=Edge_1)
 
 
                    algo1D = mesh.Segment(geom=Edge_1)
 

-                creates a sub-mesh on *Edge_1* and assign Wire Discretization algorithm to it.
+                create a sub-mesh on *Edge_1* and assign Wire Discretization algorithm to it.

                 The created sub-mesh can be retrieved from the algorithm::
 
                    submesh = algo1D.GetSubMesh()
                 The created sub-mesh can be retrieved from the algorithm::
 
                    submesh = algo1D.GetSubMesh()


@@ -1553,6 +1665,12 @@ class Mesh:
 
         self.mesh = self.smeshpyD.CreateMesh(geom)
 
 
         self.mesh = self.smeshpyD.CreateMesh(geom)
 

+    def HasShapeToMesh(self):
+        """
+        Return ``True`` if this mesh is based on geometry
+        """
+        return self.mesh.HasShapeToMesh()
+

     def Load(self):
         """
         Load mesh from the study after opening the study
     def Load(self):
         """
         Load mesh from the study after opening the study


@@ -1671,12 +1789,12 @@ class Mesh:
             if discardModifs and self.mesh.HasModificationsToDiscard(): # issue 0020693
                 self.mesh.Clear()
             ok = self.smeshpyD.Compute(self.mesh, geom)
             if discardModifs and self.mesh.HasModificationsToDiscard(): # issue 0020693
                 self.mesh.Clear()
             ok = self.smeshpyD.Compute(self.mesh, geom)

-        except SALOME.SALOME_Exception, ex:
-            print "Mesh computation failed, exception caught:"
-            print "    ", ex.details.text
+        except SALOME.SALOME_Exception as ex:
+            print("Mesh computation failed, exception caught:")
+            print("    ", ex.details.text)

         except:
             import traceback
         except:
             import traceback

-            print "Mesh computation failed, exception caught:"
+            print("Mesh computation failed, exception caught:")

             traceback.print_exc()
         if True:#not ok:
             allReasons = ""
             traceback.print_exc()
         if True:#not ok:
             allReasons = ""


@@ -1753,15 +1871,12 @@ class Mesh:
                 else:  msg += " has not been computed"
                 if allReasons != "": msg += ":"
                 else:                msg += "."
                 else:  msg += " has not been computed"
                 if allReasons != "": msg += ":"
                 else:                msg += "."

-                print msg
-                print allReasons
+                print(msg)
+                print(allReasons)

             pass
             pass

-        if salome.sg.hasDesktop() and self.mesh.GetStudyId() >= 0:
+        if salome.sg.hasDesktop():

             if not isinstance( refresh, list): # not a call from subMesh.Compute()
             if not isinstance( refresh, list): # not a call from subMesh.Compute()

-                smeshgui = salome.ImportComponentGUI("SMESH")
-                smeshgui.Init(self.mesh.GetStudyId())
-                smeshgui.SetMeshIcon( salome.ObjectToID( self.mesh ), ok, (self.NbNodes()==0) )
-                if refresh: salome.sg.updateObjBrowser(True)
+                if refresh: salome.sg.updateObjBrowser()

 
         return ok
 
 
         return ok
 


@@ -1797,11 +1912,9 @@ class Mesh:
         try:
             shapeText = ""
             mainIOR  = salome.orb.object_to_string( self.GetShape() )
         try:
             shapeText = ""
             mainIOR  = salome.orb.object_to_string( self.GetShape() )

-            for sname in salome.myStudyManager.GetOpenStudies():
-                s = salome.myStudyManager.GetStudyByName(sname)
-                if not s: continue
-                mainSO = s.FindObjectIOR(mainIOR)
-                if not mainSO: continue
+            s = salome.myStudy
+            mainSO = s.FindObjectIOR(mainIOR)
+            if mainSO:

                 if subShapeID == 1:
                     shapeText = '"%s"' % mainSO.GetName()
                 subIt = s.NewChildIterator(mainSO)
                 if subShapeID == 1:
                     shapeText = '"%s"' % mainSO.GetName()
                 subIt = s.NewChildIterator(mainSO)


@@ -1854,7 +1967,7 @@ class Mesh:
             pass
 
         groups = []
             pass
 
         groups = []

-        for algoName, shapes in algo2shapes.items():
+        for algoName, shapes in list(algo2shapes.items()):

             while shapes:
                 groupType = self.smeshpyD.EnumToLong( shapes[0].GetShapeType() )
                 otherTypeShapes = []
             while shapes:
                 groupType = self.smeshpyD.EnumToLong( shapes[0].GetShapeType() )
                 otherTypeShapes = []


@@ -1907,12 +2020,8 @@ class Mesh:
         """
 
         self.mesh.Clear()
         """
 
         self.mesh.Clear()

-        if ( salome.sg.hasDesktop() and
-             salome.myStudyManager.GetStudyByID( self.mesh.GetStudyId() ) ):
-            smeshgui = salome.ImportComponentGUI("SMESH")
-            smeshgui.Init(self.mesh.GetStudyId())
-            smeshgui.SetMeshIcon( salome.ObjectToID( self.mesh ), False, True )
-            if refresh: salome.sg.updateObjBrowser(True)
+        if ( salome.sg.hasDesktop() ):
+            if refresh: salome.sg.updateObjBrowser()

 
     def ClearSubMesh(self, geomId, refresh=False):
         """
 
     def ClearSubMesh(self, geomId, refresh=False):
         """


@@ -1925,10 +2034,7 @@ class Mesh:
 
         self.mesh.ClearSubMesh(geomId)
         if salome.sg.hasDesktop():
 
         self.mesh.ClearSubMesh(geomId)
         if salome.sg.hasDesktop():

-            smeshgui = salome.ImportComponentGUI("SMESH")
-            smeshgui.Init(self.mesh.GetStudyId())
-            smeshgui.SetMeshIcon( salome.ObjectToID( self.mesh ), False, True )
-            if refresh: salome.sg.updateObjBrowser(True)
+            if refresh: salome.sg.updateObjBrowser()

 
     def AutomaticTetrahedralization(self, fineness=0):
         """
 
     def AutomaticTetrahedralization(self, fineness=0):
         """


@@ -2011,7 +2117,7 @@ class Mesh:
             AssureGeomPublished( self, geom, "shape for %s" % hyp.GetName())
             status = self.mesh.AddHypothesis(geom, hyp)
         else:
             AssureGeomPublished( self, geom, "shape for %s" % hyp.GetName())
             status = self.mesh.AddHypothesis(geom, hyp)
         else:

-            status = HYP_BAD_GEOMETRY,""
+            status = HYP_BAD_GEOMETRY, ""

         hyp_name = GetName( hyp )
         geom_name = ""
         if geom:
         hyp_name = GetName( hyp )
         geom_name = ""
         if geom:


@@ -2068,7 +2174,7 @@ class Mesh:
             return self.mesh.RemoveHypothesis( shape, hyp )
         hypName = GetName( hyp )
         geoName = GetName( shape )
             return self.mesh.RemoveHypothesis( shape, hyp )
         hypName = GetName( hyp )
         geoName = GetName( shape )

-        print "WARNING: RemoveHypothesis() failed as '%s' is not assigned to '%s' shape" % ( hypName, geoName )
+        print("WARNING: RemoveHypothesis() failed as '%s' is not assigned to '%s' shape" % ( hypName, geoName ))

         return None
 
     def GetHypothesisList(self, geom):
         return None
 
     def GetHypothesisList(self, geom):


@@ -2094,22 +2200,21 @@ class Mesh:
             self.mesh.RemoveHypothesis( self.geom, hyp )
             pass
         pass
             self.mesh.RemoveHypothesis( self.geom, hyp )
             pass
         pass

-
-    def ExportMED(self, f, auto_groups=0, version=MED_V2_2,
-                  overwrite=1, meshPart=None, autoDimension=True, fields=[], geomAssocFields=''):
+    def ExportMED(self, *args, **kwargs):

         """
         Export the mesh in a file in MED format
         allowing to overwrite the file if it exists or add the exported data to its contents
 
         Parameters:
         """
         Export the mesh in a file in MED format
         allowing to overwrite the file if it exists or add the exported data to its contents
 
         Parameters:

-                f: is the file name
-                auto_groups: boolean parameter for creating/not creating
+                fileName: is the file name
+                auto_groups (boolean): parameter for creating/not creating

                         the groups Group_On_All_Nodes, Group_On_All_Faces, ... ;
                         the typical use is auto_groups=False.
                         the groups Group_On_All_Nodes, Group_On_All_Faces, ... ;
                         the typical use is auto_groups=False.

-                version: MED format version (MED_V2_1 or MED_V2_2,
-                        the latter meaning any current version). The parameter is
-                        obsolete since MED_V2_1 is no longer supported.
-                overwrite: boolean parameter for overwriting/not overwriting the file
+                minor (int): define the minor version (y, where version is x.y.z) of MED file format.
+                        The minor must be between 0 and the current minor version of MED file library.
+                        If minor is equal to -1, the minor version is not changed (default).
+                        The major version (x, where version is x.y.z) cannot be changed.
+                overwrite (boolean): parameter for overwriting/not overwriting the file

                 meshPart: a part of mesh (:class:`sub-mesh, group or filter <SMESH.SMESH_IDSource>`) to export instead of the mesh
                 autoDimension: if *True* (default), a space dimension of a MED mesh can be either
 
                 meshPart: a part of mesh (:class:`sub-mesh, group or filter <SMESH.SMESH_IDSource>`) to export instead of the mesh
                 autoDimension: if *True* (default), a space dimension of a MED mesh can be either
 


@@ -2121,21 +2226,40 @@ class Mesh:
                 fields: list of GEOM fields defined on the shape to mesh.
                 geomAssocFields: each character of this string means a need to export a 
                         corresponding field; correspondence between fields and characters is following:
                 fields: list of GEOM fields defined on the shape to mesh.
                 geomAssocFields: each character of this string means a need to export a 
                         corresponding field; correspondence between fields and characters is following:

-                        - 'v' stands for "_vertices _" field;
-                        - 'e' stands for "_edges _" field;
-                        - 'f' stands for "_faces _" field;
-                        - 's' stands for "_solids _" field.
-        """

 
 

+                        - 'v' stands for "_vertices_" field;
+                        - 'e' stands for "_edges_" field;
+                        - 'f' stands for "_faces_" field;
+                        - 's' stands for "_solids_" field.
+        """
+        # process positional arguments
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]] # backward compatibility
+        fileName        = args[0]
+        auto_groups     = args[1] if len(args) > 1 else False
+        minor           = args[2] if len(args) > 2 else -1
+        overwrite       = args[3] if len(args) > 3 else True
+        meshPart        = args[4] if len(args) > 4 else None
+        autoDimension   = args[5] if len(args) > 5 else True
+        fields          = args[6] if len(args) > 6 else []
+        geomAssocFields = args[7] if len(args) > 7 else ''
+        # process keywords arguments
+        auto_groups     = kwargs.get("auto_groups", auto_groups)
+        minor           = kwargs.get("minor", minor)
+        overwrite       = kwargs.get("overwrite", overwrite)
+        meshPart        = kwargs.get("meshPart", meshPart)
+        autoDimension   = kwargs.get("autoDimension", autoDimension)
+        fields          = kwargs.get("fields", fields)
+        geomAssocFields = kwargs.get("geomAssocFields", geomAssocFields)
+        # invoke engine's function

         if meshPart or fields or geomAssocFields:
             unRegister = genObjUnRegister()
             if isinstance( meshPart, list ):
                 meshPart = self.GetIDSource( meshPart, SMESH.ALL )
                 unRegister.set( meshPart )
         if meshPart or fields or geomAssocFields:
             unRegister = genObjUnRegister()
             if isinstance( meshPart, list ):
                 meshPart = self.GetIDSource( meshPart, SMESH.ALL )
                 unRegister.set( meshPart )

-            self.mesh.ExportPartToMED( meshPart, f, auto_groups, version, overwrite, autoDimension,
+            self.mesh.ExportPartToMED( meshPart, fileName, auto_groups, minor, overwrite, autoDimension,

                                        fields, geomAssocFields)
         else:
                                        fields, geomAssocFields)
         else:

-            self.mesh.ExportToMEDX(f, auto_groups, version, overwrite, autoDimension)
+            self.mesh.ExportMED(fileName, auto_groups, minor, overwrite, autoDimension)

 
     def ExportSAUV(self, f, auto_groups=0):
         """
 
     def ExportSAUV(self, f, auto_groups=0):
         """


@@ -2250,18 +2374,15 @@ class Mesh:
             meshPart = self.mesh
         self.mesh.ExportGMF(meshPart, f, True)
 
             meshPart = self.mesh
         self.mesh.ExportGMF(meshPart, f, True)
 

-    def ExportToMED(self, f, version=MED_V2_2, opt=0, overwrite=1, autoDimension=True):
+    def ExportToMED(self, *args, **kwargs):

         """
         Deprecated, used only for compatibility! Please, use :meth:`ExportMED` method instead.
         Export the mesh in a file in MED format
         allowing to overwrite the file if it exists or add the exported data to its contents
 
         Parameters:
         """
         Deprecated, used only for compatibility! Please, use :meth:`ExportMED` method instead.
         Export the mesh in a file in MED format
         allowing to overwrite the file if it exists or add the exported data to its contents
 
         Parameters:

-                f: the file name
-                version: MED format version (MED_V2_1 or MED_V2_2,
-                        the latter meaning any current version). The parameter is
-                        obsolete since MED_V2_1 is no longer supported.
-                opt: boolean parameter for creating/not creating
+                fileName: the file name
+                opt (boolean): parameter for creating/not creating

                         the groups Group_On_All_Nodes, Group_On_All_Faces, ...
                 overwrite: boolean parameter for overwriting/not overwriting the file
                 autoDimension: if *True* (default), a space dimension of a MED mesh can be either
                         the groups Group_On_All_Nodes, Group_On_All_Faces, ...
                 overwrite: boolean parameter for overwriting/not overwriting the file
                 autoDimension: if *True* (default), a space dimension of a MED mesh can be either


@@ -2272,15 +2393,62 @@ class Mesh:
 
                         If **autoDimension** is *False*, the space dimension is always 3.
         """
 
                         If **autoDimension** is *False*, the space dimension is always 3.
         """

+    
+        print("WARNING: ExportToMED() is deprecated, use ExportMED() instead")
+        # process positional arguments
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]] # backward compatibility
+        fileName      = args[0]
+        auto_groups   = args[1] if len(args) > 1 else False
+        overwrite     = args[2] if len(args) > 2 else True
+        autoDimension = args[3] if len(args) > 3 else True
+        # process keywords arguments
+        auto_groups   = kwargs.get("opt", auto_groups)         # old keyword name
+        auto_groups   = kwargs.get("auto_groups", auto_groups) # new keyword name
+        overwrite     = kwargs.get("overwrite", overwrite)
+        autoDimension = kwargs.get("autoDimension", autoDimension)
+        minor = -1
+        # invoke engine's function
+        self.mesh.ExportMED(fileName, auto_groups, minor, overwrite, autoDimension)
+
+    def ExportToMEDX(self, *args, **kwargs):
+        """
+        Deprecated, used only for compatibility! Please, use ExportMED() method instead.
+        Export the mesh in a file in MED format
+
+        Parameters:
+                fileName: the file name
+                opt (boolean): parameter for creating/not creating
+                        the groups Group_On_All_Nodes, Group_On_All_Faces, ...
+                overwrite: boolean parameter for overwriting/not overwriting the file
+                autoDimension: if *True* (default), a space dimension of a MED mesh can be either

 
 

-        self.mesh.ExportToMEDX(f, opt, version, overwrite, autoDimension)
+                        - 1D if all mesh nodes lie on OX coordinate axis, or
+                        - 2D if all mesh nodes lie on XOY coordinate plane, or
+                        - 3D in the rest cases.
+
+                        If **autoDimension** is *False*, the space dimension is always 3.
+                """
+
+        print("WARNING: ExportToMEDX() is deprecated, use ExportMED() instead")
+        # process positional arguments
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]] # backward compatibility
+        fileName      = args[0]
+        auto_groups   = args[1] if len(args) > 1 else False
+        overwrite     = args[2] if len(args) > 2 else True
+        autoDimension = args[3] if len(args) > 3 else True
+        # process keywords arguments
+        auto_groups   = kwargs.get("auto_groups", auto_groups)
+        overwrite     = kwargs.get("overwrite", overwrite)
+        autoDimension = kwargs.get("autoDimension", autoDimension)
+        minor = -1
+        # invoke engine's function
+        self.mesh.ExportMED(fileName, auto_groups, minor, overwrite, autoDimension)

 
     # Operations with groups:
     # ----------------------
 
     # Operations with groups:
     # ----------------------

-

     def CreateEmptyGroup(self, elementType, name):
         """
     def CreateEmptyGroup(self, elementType, name):
         """

-        Create an empty mesh group
+        Create an empty standalone mesh group

 
         Parameters:
                 elementType: the :class:`type <SMESH.ElementType>` of elements in the group; 
 
         Parameters:
                 elementType: the :class:`type <SMESH.ElementType>` of elements in the group; 


@@ -2315,7 +2483,7 @@ class Mesh:
     def GroupOnGeom(self, grp, name="", typ=None):
         """
         Create a mesh group based on the geometrical object *grp*
     def GroupOnGeom(self, grp, name="", typ=None):
         """
         Create a mesh group based on the geometrical object *grp*

-        and gives a *name*.
+        and give it a *name*.

         if *name* is not defined the name of the geometric group is used
 
         Parameters:
         if *name* is not defined the name of the geometric group is used
 
         Parameters:


@@ -2352,17 +2520,16 @@ class Mesh:
         elif tgeo == "COMPOUND":
             sub = self.geompyD.SubShapeAll( shape, self.geompyD.ShapeType["SHAPE"])
             if not sub:
         elif tgeo == "COMPOUND":
             sub = self.geompyD.SubShapeAll( shape, self.geompyD.ShapeType["SHAPE"])
             if not sub:

-                raise ValueError,"_groupTypeFromShape(): empty geometric group or compound '%s'" % GetName(shape)
+                raise ValueError("_groupTypeFromShape(): empty geometric group or compound '%s'" % GetName(shape))

             return self._groupTypeFromShape( sub[0] )
         else:
             return self._groupTypeFromShape( sub[0] )
         else:

-            raise ValueError, \
-                  "_groupTypeFromShape(): invalid geometry '%s'" % GetName(shape)
+            raise ValueError("_groupTypeFromShape(): invalid geometry '%s'" % GetName(shape))

         return typ
 
     def GroupOnFilter(self, typ, name, filter):
         """
         return typ
 
     def GroupOnFilter(self, typ, name, filter):
         """

-        Create a mesh group with given *name* based on the *filter* which
-        is a special type of group dynamically updating it's contents during
+        Create a mesh group with given *name* based on the *filter*.
+        It is a special type of group dynamically updating it's contents during

         mesh modification
 
         Parameters:
         mesh modification
 
         Parameters:


@@ -2512,15 +2679,15 @@ class Mesh:
 
     def GetGroups(self, elemType = SMESH.ALL):
         """
 
     def GetGroups(self, elemType = SMESH.ALL):
         """

-        Get the list of groups existing in the mesh in the order
-        of creation (starting from the oldest one)
+        Get the list of groups existing in the mesh in the order of creation 
+        (starting from the oldest one)

 
         Parameters:
                 elemType (SMESH.ElementType): type of elements the groups contain;
                         by default groups of elements of all types are returned
 
         Returns:
 
         Parameters:
                 elemType (SMESH.ElementType): type of elements the groups contain;
                         by default groups of elements of all types are returned
 
         Returns:

-                a sequence of :class:`SMESH.SMESH_GroupBase`
+                a list of :class:`SMESH.SMESH_GroupBase`

         """
 
         groups = self.mesh.GetGroups()
         """
 
         groups = self.mesh.GetGroups()


@@ -2610,7 +2777,6 @@ class Mesh:
         Returns:
                 instance of :class:`SMESH.SMESH_Group`
         """
         Returns:
                 instance of :class:`SMESH.SMESH_Group`
         """

-

         return self.mesh.UnionListOfGroups(groups, name)
 
     def IntersectGroups(self, group1, group2, name):
         return self.mesh.UnionListOfGroups(groups, name)
 
     def IntersectGroups(self, group1, group2, name):


@@ -2641,7 +2807,6 @@ class Mesh:
         Returns:
                 instance of :class:`SMESH.SMESH_Group`
         """
         Returns:
                 instance of :class:`SMESH.SMESH_Group`
         """

-

         return self.mesh.IntersectListOfGroups(groups, name)
 
     def CutGroups(self, main_group, tool_group, name):
         return self.mesh.IntersectListOfGroups(groups, name)
 
     def CutGroups(self, main_group, tool_group, name):


@@ -2772,16 +2937,6 @@ class Mesh:
 
         return self.mesh.GetId()
 
 
         return self.mesh.GetId()
 

-    def GetStudyId(self):
-        """
-        Get the study Id
-
-        Returns:
-            integer value, which is the study Id of the mesh
-        """
-
-        return self.mesh.GetStudyId()
-

     def HasDuplicatedGroupNamesMED(self):
         """
         Check the group names for duplications.
     def HasDuplicatedGroupNamesMED(self):
         """
         Check the group names for duplications.


@@ -3561,7 +3716,9 @@ class Mesh:
                 isElem2: *True* if *id2* is element id, *False* if it is node id
 
         Returns:
                 isElem2: *True* if *id2* is element id, *False* if it is node id
 
         Returns:

-            minimum distance value **GetMinDistance()**
+            minimum distance value
+        See Also:
+            :meth:`GetMinDistance`

         """
 
         aMeasure = self.GetMinDistance(id1, id2, isElem1, isElem2)
         """
 
         aMeasure = self.GetMinDistance(id1, id2, isElem1, isElem2)


@@ -3886,7 +4043,7 @@ class Mesh:
 
     def SetNodeOnVertex(self, NodeID, Vertex):
         """
 
     def SetNodeOnVertex(self, NodeID, Vertex):
         """

-        Binds a node to a vertex
+        Bind a node to a vertex

 
         Parameters:
                 NodeID: a node ID
 
         Parameters:
                 NodeID: a node ID


@@ -3902,14 +4059,14 @@ class Mesh:
             VertexID = Vertex
         try:
             self.editor.SetNodeOnVertex(NodeID, VertexID)
             VertexID = Vertex
         try:
             self.editor.SetNodeOnVertex(NodeID, VertexID)

-        except SALOME.SALOME_Exception, inst:
-            raise ValueError, inst.details.text
+        except SALOME.SALOME_Exception as inst:
+            raise ValueError(inst.details.text)

         return True
 
 
     def SetNodeOnEdge(self, NodeID, Edge, paramOnEdge):
         """
         return True
 
 
     def SetNodeOnEdge(self, NodeID, Edge, paramOnEdge):
         """

-        Stores the node position on an edge
+        Store the node position on an edge

 
         Parameters:
                 NodeID: a node ID
 
         Parameters:
                 NodeID: a node ID


@@ -3926,13 +4083,13 @@ class Mesh:
             EdgeID = Edge
         try:
             self.editor.SetNodeOnEdge(NodeID, EdgeID, paramOnEdge)
             EdgeID = Edge
         try:
             self.editor.SetNodeOnEdge(NodeID, EdgeID, paramOnEdge)

-        except SALOME.SALOME_Exception, inst:
-            raise ValueError, inst.details.text
+        except SALOME.SALOME_Exception as inst:
+            raise ValueError(inst.details.text)

         return True
 
     def SetNodeOnFace(self, NodeID, Face, u, v):
         """
         return True
 
     def SetNodeOnFace(self, NodeID, Face, u, v):
         """

-        Stores node position on a face
+        Store node position on a face

 
         Parameters:
                 NodeID: a node ID
 
         Parameters:
                 NodeID: a node ID


@@ -3950,13 +4107,13 @@ class Mesh:
             FaceID = Face
         try:
             self.editor.SetNodeOnFace(NodeID, FaceID, u, v)
             FaceID = Face
         try:
             self.editor.SetNodeOnFace(NodeID, FaceID, u, v)

-        except SALOME.SALOME_Exception, inst:
-            raise ValueError, inst.details.text
+        except SALOME.SALOME_Exception as inst:
+            raise ValueError(inst.details.text)

         return True
 
     def SetNodeInVolume(self, NodeID, Solid):
         """
         return True
 
     def SetNodeInVolume(self, NodeID, Solid):
         """

-        Binds a node to a solid
+        Bind a node to a solid

 
         Parameters:
                 NodeID: a node ID
 
         Parameters:
                 NodeID: a node ID


@@ -3972,8 +4129,8 @@ class Mesh:
             SolidID = Solid
         try:
             self.editor.SetNodeInVolume(NodeID, SolidID)
             SolidID = Solid
         try:
             self.editor.SetNodeInVolume(NodeID, SolidID)

-        except SALOME.SALOME_Exception, inst:
-            raise ValueError, inst.details.text
+        except SALOME.SALOME_Exception as inst:
+            raise ValueError(inst.details.text)

         return True
 
     def SetMeshElementOnShape(self, ElementID, Shape):
         return True
 
     def SetMeshElementOnShape(self, ElementID, Shape):


@@ -3994,8 +4151,8 @@ class Mesh:
             ShapeID = Shape
         try:
             self.editor.SetMeshElementOnShape(ElementID, ShapeID)
             ShapeID = Shape
         try:
             self.editor.SetMeshElementOnShape(ElementID, ShapeID)

-        except SALOME.SALOME_Exception, inst:
-            raise ValueError, inst.details.text
+        except SALOME.SALOME_Exception as inst:
+            raise ValueError(inst.details.text)

         return True
 
 
         return True
 
 


@@ -4066,16 +4223,26 @@ class Mesh:
         Returns:
             list of IDs of found elements
         """
         Returns:
             list of IDs of found elements
         """

-

         if meshPart:
             return self.editor.FindAmongElementsByPoint( meshPart, x, y, z, elementType );
         else:
             return self.editor.FindElementsByPoint(x, y, z, elementType)
 
         if meshPart:
             return self.editor.FindAmongElementsByPoint( meshPart, x, y, z, elementType );
         else:
             return self.editor.FindElementsByPoint(x, y, z, elementType)
 

+    def ProjectPoint(self, x,y,z, meshObject, elementType):
+        """
+        Project a point to a mesh object.
+        Return ID of an element of given type where the given point is projected
+        and coordinates of the projection point.
+        In the case if nothing found, return -1 and []
+        """
+        if ( isinstance( meshObject, Mesh )):
+            meshObject = meshObject.GetMesh()
+        return self.editor.ProjectPoint( x,y,z, meshObject, elementType )
+

     def GetPointState(self, x, y, z):
         """
         Return point state in a closed 2D mesh in terms of TopAbs_State enumeration:
     def GetPointState(self, x, y, z):
         """
         Return point state in a closed 2D mesh in terms of TopAbs_State enumeration:

-        0-IN, 1-OUT, 2-ON, 3-UNKNOWN.
+        smesh.TopAbs_IN, smesh.TopAbs_OUT, smesh.TopAbs_ON and smesh.TopAbs_UNKNOWN.

         UNKNOWN state means that either mesh is wrong or the analysis fails.
         """
 
         UNKNOWN state means that either mesh is wrong or the analysis fails.
         """
 


@@ -4369,7 +4536,7 @@ class Mesh:
 
         Parameters:
                 IDsOfElements: the faces to be splitted
 
         Parameters:
                 IDsOfElements: the faces to be splitted

-                Diag13:        is used to choose a diagonal for splitting.
+                Diag13 (boolean):        is used to choose a diagonal for splitting.

 
         Returns:
             True in case of success, False otherwise.
 
         Returns:
             True in case of success, False otherwise.


@@ -4385,7 +4552,7 @@ class Mesh:
         Parameters:
                 theObject: the object from which the list of elements is taken,
                         this is :class:`mesh, sub-mesh, group or filter <SMESH.SMESH_IDSource>`
         Parameters:
                 theObject: the object from which the list of elements is taken,
                         this is :class:`mesh, sub-mesh, group or filter <SMESH.SMESH_IDSource>`

-                Diag13:    is used to choose a diagonal for splitting.
+                Diag13 (boolean):    is used to choose a diagonal for splitting.

 
         Returns:
             True in case of success, False otherwise.
 
         Returns:
             True in case of success, False otherwise.


@@ -4585,12 +4752,12 @@ class Mesh:
         pattern = self.smeshpyD.GetPattern()
         isDone  = pattern.LoadFromFile(pattern_tetra)
         if not isDone:
         pattern = self.smeshpyD.GetPattern()
         isDone  = pattern.LoadFromFile(pattern_tetra)
         if not isDone:

-            print 'Pattern.LoadFromFile :', pattern.GetErrorCode()
+            print('Pattern.LoadFromFile :', pattern.GetErrorCode())

             return isDone
 
         pattern.ApplyToHexahedrons(self.mesh, theObject.GetIDs(), theNode000, theNode001)
         isDone = pattern.MakeMesh(self.mesh, False, False)
             return isDone
 
         pattern.ApplyToHexahedrons(self.mesh, theObject.GetIDs(), theNode000, theNode001)
         isDone = pattern.MakeMesh(self.mesh, False, False)

-        if not isDone: print 'Pattern.MakeMesh :', pattern.GetErrorCode()
+        if not isDone: print('Pattern.MakeMesh :', pattern.GetErrorCode())

 
         # split quafrangle faces near triangular facets of volumes
         self.SplitQuadsNearTriangularFacets()
 
         # split quafrangle faces near triangular facets of volumes
         self.SplitQuadsNearTriangularFacets()


@@ -4644,12 +4811,12 @@ class Mesh:
         pattern = self.smeshpyD.GetPattern()
         isDone  = pattern.LoadFromFile(pattern_prism)
         if not isDone:
         pattern = self.smeshpyD.GetPattern()
         isDone  = pattern.LoadFromFile(pattern_prism)
         if not isDone:

-            print 'Pattern.LoadFromFile :', pattern.GetErrorCode()
+            print('Pattern.LoadFromFile :', pattern.GetErrorCode())

             return isDone
 
         pattern.ApplyToHexahedrons(self.mesh, theObject.GetIDs(), theNode000, theNode001)
         isDone = pattern.MakeMesh(self.mesh, False, False)
             return isDone
 
         pattern.ApplyToHexahedrons(self.mesh, theObject.GetIDs(), theNode000, theNode001)
         isDone = pattern.MakeMesh(self.mesh, False, False)

-        if not isDone: print 'Pattern.MakeMesh :', pattern.GetErrorCode()
+        if not isDone: print('Pattern.MakeMesh :', pattern.GetErrorCode())

 
         # Split quafrangle faces near triangular facets of volumes
         self.SplitQuadsNearTriangularFacets()
 
         # Split quafrangle faces near triangular facets of volumes
         self.SplitQuadsNearTriangularFacets()


@@ -4783,7 +4950,7 @@ class Mesh:
                 self.editor.ConvertToQuadratic(theForce3d)
         error = self.editor.GetLastError()
         if error and error.comment:
                 self.editor.ConvertToQuadratic(theForce3d)
         error = self.editor.GetLastError()
         if error and error.comment:

-            print error.comment
+            print(error.comment)

         return error
 
     def ConvertFromQuadratic(self, theSubMesh=None):
         return error
 
     def ConvertFromQuadratic(self, theSubMesh=None):


@@ -5088,7 +5255,7 @@ class Mesh:
         if isinstance( basePoint, int):
             xyz = self.GetNodeXYZ( basePoint )
             if not xyz:
         if isinstance( basePoint, int):
             xyz = self.GetNodeXYZ( basePoint )
             if not xyz:

-                raise RuntimeError, "Invalid node ID: %s" % basePoint
+                raise RuntimeError("Invalid node ID: %s" % basePoint)

             basePoint = xyz
         if isinstance( basePoint, geomBuilder.GEOM._objref_GEOM_Object ):
             basePoint = self.geompyD.PointCoordinates( basePoint )
             basePoint = xyz
         if isinstance( basePoint, geomBuilder.GEOM._objref_GEOM_Object ):
             basePoint = self.geompyD.PointCoordinates( basePoint )


@@ -5160,7 +5327,7 @@ class Mesh:
             Elements = [ Elements.GetMesh() ]
         if isinstance( Elements, list ):
             if not Elements:
             Elements = [ Elements.GetMesh() ]
         if isinstance( Elements, list ):
             if not Elements:

-                raise RuntimeError, "Elements empty!"
+                raise RuntimeError("Elements empty!")

             if isinstance( Elements[0], int ):
                 Elements = self.GetIDSource( Elements, SMESH.ALL )
                 unRegister.set( Elements )
             if isinstance( Elements[0], int ):
                 Elements = self.GetIDSource( Elements, SMESH.ALL )
                 unRegister.set( Elements )


@@ -5516,7 +5683,7 @@ class Mesh:
         Parameters:
             IDsOfElements: list of elements ids
             Mirror: is :class:`SMESH.AxisStruct` or geom object (point, line, plane)
         Parameters:
             IDsOfElements: list of elements ids
             Mirror: is :class:`SMESH.AxisStruct` or geom object (point, line, plane)

-            theMirrorType: smeshBuilder.POINT, smeshBuilder.AXIS or smeshBuilder.PLANE.
+            theMirrorType: smesh.POINT, smesh.AXIS or smesh.PLANE.

                 If the *Mirror* is a geom object this parameter is unnecessary
             Copy: allows to copy element (Copy is 1) or to replace with its mirroring (Copy is 0)
             MakeGroups: forces the generation of new groups from existing ones (if Copy)
                 If the *Mirror* is a geom object this parameter is unnecessary
             Copy: allows to copy element (Copy is 1) or to replace with its mirroring (Copy is 0)
             MakeGroups: forces the generation of new groups from existing ones (if Copy)


@@ -5544,7 +5711,7 @@ class Mesh:
         Parameters:
             IDsOfElements: the list of elements ids
             Mirror: is :class:`SMESH.AxisStruct` or geom object (point, line, plane)
         Parameters:
             IDsOfElements: the list of elements ids
             Mirror: is :class:`SMESH.AxisStruct` or geom object (point, line, plane)

-            theMirrorType: smeshBuilder.POINT, smeshBuilder.AXIS or smeshBuilder.PLANE.
+            theMirrorType: smesh.POINT, smesh.AXIS or smesh.PLANE.

                 If the *Mirror* is a geom object this parameter is unnecessary
             MakeGroups: to generate new groups from existing ones
             NewMeshName: a name of the new mesh to create
                 If the *Mirror* is a geom object this parameter is unnecessary
             MakeGroups: to generate new groups from existing ones
             NewMeshName: a name of the new mesh to create


@@ -5571,7 +5738,7 @@ class Mesh:
         Parameters:
             theObject: :class:`mesh, sub-mesh, group or filter <SMESH.SMESH_IDSource>`
             Mirror: :class:`SMESH.AxisStruct` or geom object (point, line, plane)
         Parameters:
             theObject: :class:`mesh, sub-mesh, group or filter <SMESH.SMESH_IDSource>`
             Mirror: :class:`SMESH.AxisStruct` or geom object (point, line, plane)

-            theMirrorType: smeshBuilder.POINT, smeshBuilder.AXIS or smeshBuilder.PLANE.
+            theMirrorType: smesh.POINT, smesh.AXIS or smesh.PLANE.

                 If the *Mirror* is a geom object this parameter is unnecessary
             Copy: allows copying the element (Copy==True) or replacing it with its mirror (Copy==False)
             MakeGroups: forces the generation of new groups from existing ones (if Copy)
                 If the *Mirror* is a geom object this parameter is unnecessary
             Copy: allows copying the element (Copy==True) or replacing it with its mirror (Copy==False)
             MakeGroups: forces the generation of new groups from existing ones (if Copy)


@@ -5599,7 +5766,7 @@ class Mesh:
         Parameters:
             theObject: :class:`mesh, sub-mesh, group or filter <SMESH.SMESH_IDSource>`
             Mirror: :class:`SMESH.AxisStruct` or geom object (point, line, plane)
         Parameters:
             theObject: :class:`mesh, sub-mesh, group or filter <SMESH.SMESH_IDSource>`
             Mirror: :class:`SMESH.AxisStruct` or geom object (point, line, plane)

-            theMirrorType: smeshBuilder.POINT, smeshBuilder.AXIS or smeshBuilder.PLANE.
+            theMirrorType: smesh.POINT, smesh.AXIS or smesh.PLANE.

                 If the *Mirror* is a geom object this parameter is unnecessary
             MakeGroups: forces the generation of new groups from existing ones
             NewMeshName: the name of the new mesh to create
                 If the *Mirror* is a geom object this parameter is unnecessary
             MakeGroups: forces the generation of new groups from existing ones
             NewMeshName: the name of the new mesh to create


@@ -5746,9 +5913,9 @@ class Mesh:
         if ( isinstance( thePoint, list )):
             thePoint = PointStruct( thePoint[0], thePoint[1], thePoint[2] )
         if ( isinstance( theScaleFact, float )):
         if ( isinstance( thePoint, list )):
             thePoint = PointStruct( thePoint[0], thePoint[1], thePoint[2] )
         if ( isinstance( theScaleFact, float )):

-             theScaleFact = [theScaleFact]
+            theScaleFact = [theScaleFact]

         if ( isinstance( theScaleFact, int )):
         if ( isinstance( theScaleFact, int )):

-             theScaleFact = [ float(theScaleFact)]
+            theScaleFact = [ float(theScaleFact)]

 
         self.mesh.SetParameters(thePoint.parameters)
 
 
         self.mesh.SetParameters(thePoint.parameters)
 


@@ -5780,9 +5947,9 @@ class Mesh:
         if ( isinstance( thePoint, list )):
             thePoint = PointStruct( thePoint[0], thePoint[1], thePoint[2] )
         if ( isinstance( theScaleFact, float )):
         if ( isinstance( thePoint, list )):
             thePoint = PointStruct( thePoint[0], thePoint[1], thePoint[2] )
         if ( isinstance( theScaleFact, float )):

-             theScaleFact = [theScaleFact]
+            theScaleFact = [theScaleFact]

         if ( isinstance( theScaleFact, int )):
         if ( isinstance( theScaleFact, int )):

-             theScaleFact = [ float(theScaleFact)]
+            theScaleFact = [ float(theScaleFact)]

 
         self.mesh.SetParameters(thePoint.parameters)
         mesh = self.editor.ScaleMakeMesh(theObject, thePoint, theScaleFact,
 
         self.mesh.SetParameters(thePoint.parameters)
         mesh = self.editor.ScaleMakeMesh(theObject, thePoint, theScaleFact,


@@ -5942,7 +6109,7 @@ class Mesh:
     def FindCoincidentNodesOnPart (self, SubMeshOrGroup, Tolerance,
                                    exceptNodes=[], SeparateCornerAndMediumNodes=False):
         """
     def FindCoincidentNodesOnPart (self, SubMeshOrGroup, Tolerance,
                                    exceptNodes=[], SeparateCornerAndMediumNodes=False):
         """

-        Find groups of ajacent nodes within Tolerance.
+        Find groups of adjacent nodes within Tolerance.

 
         Parameters:
             Tolerance: the value of tolerance
 
         Parameters:
             Tolerance: the value of tolerance


@@ -6030,22 +6197,25 @@ class Mesh:
 
         return self.editor.FindFreeBorders( ClosedOnly )
 
 
         return self.editor.FindFreeBorders( ClosedOnly )
 

-    def FillHole(self, holeNodes):
+    def FillHole(self, holeNodes, groupName=""):

         """
         Fill with 2D elements a hole defined by a SMESH.FreeBorder.
 
         Parameters:
         """
         Fill with 2D elements a hole defined by a SMESH.FreeBorder.
 
         Parameters:

-            FreeBorder: either a SMESH.FreeBorder or a list on node IDs. These nodes
+            holeNodes: either a SMESH.FreeBorder or a list on node IDs. These nodes

                 must describe all sequential nodes of the hole border. The first and the last
                 nodes must be the same. Use :meth:`FindFreeBorders` to get nodes of holes.
                 must describe all sequential nodes of the hole border. The first and the last
                 nodes must be the same. Use :meth:`FindFreeBorders` to get nodes of holes.

+            groupName (string): name of a group to add new faces
+        Returns:
+            a :class:`group <SMESH.SMESH_GroupBase>` containing the new faces; or :code:`None` if `groupName` == ""

         """
 
 
         if holeNodes and isinstance( holeNodes, list ) and isinstance( holeNodes[0], int ):
             holeNodes = SMESH.FreeBorder(nodeIDs=holeNodes)
         if not isinstance( holeNodes, SMESH.FreeBorder ):
         """
 
 
         if holeNodes and isinstance( holeNodes, list ) and isinstance( holeNodes[0], int ):
             holeNodes = SMESH.FreeBorder(nodeIDs=holeNodes)
         if not isinstance( holeNodes, SMESH.FreeBorder ):

-            raise TypeError, "holeNodes must be either SMESH.FreeBorder or list of integer and not %s" % holeNodes
-        self.editor.FillHole( holeNodes )
+            raise TypeError("holeNodes must be either SMESH.FreeBorder or list of integer and not %s" % holeNodes)
+        self.editor.FillHole( holeNodes, groupName )

 
     def FindCoincidentFreeBorders (self, tolerance=0.):
         """
 
     def FindCoincidentFreeBorders (self, tolerance=0.):
         """


@@ -6092,7 +6262,7 @@ class Mesh:
             coincidentGroups = []
             for nodeList in freeBorders:
                 if not nodeList or len( nodeList ) % 3:
             coincidentGroups = []
             for nodeList in freeBorders:
                 if not nodeList or len( nodeList ) % 3:

-                    raise ValueError, "Wrong number of nodes in this group: %s" % nodeList
+                    raise ValueError("Wrong number of nodes in this group: %s" % nodeList)

                 group = []
                 while nodeList:
                     group.append  ( SMESH.FreeBorderPart( len(borders), 0, 1, 2 ))
                 group = []
                 while nodeList:
                     group.append  ( SMESH.FreeBorderPart( len(borders), 0, 1, 2 ))


@@ -6219,7 +6389,7 @@ class Mesh:
                 a :class:`Mesh`, elements of highest dimension are duplicated
             theGroupName: a name of group to contain the generated elements.
                 If a group with such a name already exists, the new elements
                 a :class:`Mesh`, elements of highest dimension are duplicated
             theGroupName: a name of group to contain the generated elements.
                 If a group with such a name already exists, the new elements

-                are added to the existng group, else a new group is created.
+                are added to the existing group, else a new group is created.

                 If *theGroupName* is empty, new elements are not added
                 in any group.
 
                 If *theGroupName* is empty, new elements are not added
                 in any group.
 


@@ -6449,6 +6619,7 @@ class Mesh:
         return self.editor.AffectedElemGroupsInRegion(theElems, theNodesNot, theShape)
 
     def DoubleNodesOnGroupBoundaries(self, theDomains, createJointElems, onAllBoundaries=False ):
         return self.editor.AffectedElemGroupsInRegion(theElems, theNodesNot, theShape)
 
     def DoubleNodesOnGroupBoundaries(self, theDomains, createJointElems, onAllBoundaries=False ):

+

         """
         Double nodes on shared faces between groups of volumes and create flat elements on demand.
         The list of groups must describe a partition of the mesh volumes.
         """
         Double nodes on shared faces between groups of volumes and create flat elements on demand.
         The list of groups must describe a partition of the mesh volumes.


@@ -6494,7 +6665,7 @@ class Mesh:
     def MakePolyLine(self, segments, groupName='', isPreview=False ):
         """    
         Create a polyline consisting of 1D mesh elements each lying on a 2D element of
     def MakePolyLine(self, segments, groupName='', isPreview=False ):
         """    
         Create a polyline consisting of 1D mesh elements each lying on a 2D element of

-        the initial mesh. Positions of new nodes are found by cutting the mesh by the
+        the initial triangle mesh. Positions of new nodes are found by cutting the mesh by the

         plane passing through pairs of points specified by each :class:`SMESH.PolySegment` structure.
         If there are several paths connecting a pair of points, the shortest path is
         selected by the module. Position of the cutting plane is defined by the two
         plane passing through pairs of points specified by each :class:`SMESH.PolySegment` structure.
         If there are several paths connecting a pair of points, the shortest path is
         selected by the module. Position of the cutting plane is defined by the two


@@ -6504,12 +6675,12 @@ class Mesh:
         The vector goes from the middle point to the projection point. In case of planar
         mesh, the vector is normal to the mesh.
 
         The vector goes from the middle point to the projection point. In case of planar
         mesh, the vector is normal to the mesh.
 

-        *segments* [i].vector returns the used vector which goes from the middle point to its projection.
+        In preview mode, *segments* [i].vector returns the used vector which goes from the middle point to its projection.

 
 

-        Parameters:        
+        Parameters:

             segments: list of :class:`SMESH.PolySegment` defining positions of cutting planes.
             groupName: optional name of a group where created mesh segments will be added.
             segments: list of :class:`SMESH.PolySegment` defining positions of cutting planes.
             groupName: optional name of a group where created mesh segments will be added.

-            
+

         """    
         editor = self.editor
         if isPreview:
         """    
         editor = self.editor
         if isPreview:


@@ -6738,28 +6909,49 @@ class meshProxy(SMESH._objref_SMESH_Mesh):
     Private class used to compensate change of CORBA API of SMESH_Mesh for backward compatibility
     with old dump scripts which call SMESH_Mesh directly and not via smeshBuilder.Mesh
     """
     Private class used to compensate change of CORBA API of SMESH_Mesh for backward compatibility
     with old dump scripts which call SMESH_Mesh directly and not via smeshBuilder.Mesh
     """

-    def __init__(self):
-        SMESH._objref_SMESH_Mesh.__init__(self)
+    def __init__(self,*args):
+        SMESH._objref_SMESH_Mesh.__init__(self,*args)

     def __deepcopy__(self, memo=None):
     def __deepcopy__(self, memo=None):

-        new = self.__class__()
+        new = self.__class__(self)

         return new
     def CreateDimGroup(self,*args): # 2 args added: nbCommonNodes, underlyingOnly
         if len( args ) == 3:
             args += SMESH.ALL_NODES, True
         return new
     def CreateDimGroup(self,*args): # 2 args added: nbCommonNodes, underlyingOnly
         if len( args ) == 3:
             args += SMESH.ALL_NODES, True

-        return SMESH._objref_SMESH_Mesh.CreateDimGroup( self, *args )
+        return SMESH._objref_SMESH_Mesh.CreateDimGroup(self, *args)
+    def ExportToMEDX(self, *args): # function removed
+        print("WARNING: ExportToMEDX() is deprecated, use ExportMED() instead")
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]]
+        SMESH._objref_SMESH_Mesh.ExportMED(self, *args)
+    def ExportToMED(self, *args): # function removed
+        print("WARNING: ExportToMED() is deprecated, use ExportMED() instead")
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]]
+        args2 = list(args)
+        while len(args2) < 5:  # !!!! nb of parameters for ExportToMED IDL's method
+            args2.append(True)
+        SMESH._objref_SMESH_Mesh.ExportMED(self, *args2)
+    def ExportPartToMED(self, *args): # 'version' parameter removed
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]]
+        SMESH._objref_SMESH_Mesh.ExportPartToMED(self, *args)
+    def ExportMED(self, *args): # signature of method changed
+        #args = [i for i in args if i not in [SMESH.MED_V2_1, SMESH.MED_V2_2]]
+        args2 = list(args)
+        while len(args2) < 5:  # !!!! nb of parameters for ExportToMED IDL's method
+            args2.append(True)
+        SMESH._objref_SMESH_Mesh.ExportMED(self, *args2)

     pass
 omniORB.registerObjref(SMESH._objref_SMESH_Mesh._NP_RepositoryId, meshProxy)
 
 
 class submeshProxy(SMESH._objref_SMESH_subMesh):
     pass
 omniORB.registerObjref(SMESH._objref_SMESH_Mesh._NP_RepositoryId, meshProxy)
 
 
 class submeshProxy(SMESH._objref_SMESH_subMesh):

+

     """
     Private class wrapping SMESH.SMESH_SubMesh in order to add Compute()
     """
     """
     Private class wrapping SMESH.SMESH_SubMesh in order to add Compute()
     """

-    def __init__(self):
-        SMESH._objref_SMESH_subMesh.__init__(self)
+    def __init__(self,*args):
+        SMESH._objref_SMESH_subMesh.__init__(self,*args)

         self.mesh = None
     def __deepcopy__(self, memo=None):
         self.mesh = None
     def __deepcopy__(self, memo=None):

-        new = self.__class__()
+        new = self.__class__(self)

         return new
 
     def Compute(self,refresh=False):
         return new
 
     def Compute(self,refresh=False):


@@ -6781,11 +6973,8 @@ class submeshProxy(SMESH._objref_SMESH_subMesh):
 
         ok = self.mesh.Compute( self.GetSubShape(),refresh=[] )
 
 
         ok = self.mesh.Compute( self.GetSubShape(),refresh=[] )
 

-        if salome.sg.hasDesktop() and self.mesh.GetStudyId() >= 0:
-            smeshgui = salome.ImportComponentGUI("SMESH")
-            smeshgui.Init(self.mesh.GetStudyId())
-            smeshgui.SetMeshIcon( salome.ObjectToID( self ), ok, (self.GetNumberOfElements()==0) )
-            if refresh: salome.sg.updateObjBrowser(True)
+        if salome.sg.hasDesktop():
+            if refresh: salome.sg.updateObjBrowser()

             pass
 
         return ok
             pass
 
         return ok


@@ -6799,8 +6988,8 @@ class meshEditor(SMESH._objref_SMESH_MeshEditor):
     compatibility with old dump scripts which call SMESH_MeshEditor directly and not via
     smeshBuilder.Mesh
     """
     compatibility with old dump scripts which call SMESH_MeshEditor directly and not via
     smeshBuilder.Mesh
     """

-    def __init__(self):
-        SMESH._objref_SMESH_MeshEditor.__init__(self)
+    def __init__(self,*args):
+        SMESH._objref_SMESH_MeshEditor.__init__( self, *args)

         self.mesh = None
     def __getattr__(self, name ): # method called if an attribute not found
         if not self.mesh:         # look for name() method in Mesh class
         self.mesh = None
     def __getattr__(self, name ): # method called if an attribute not found
         if not self.mesh:         # look for name() method in Mesh class


@@ -6809,10 +6998,10 @@ class meshEditor(SMESH._objref_SMESH_MeshEditor):
             return getattr( self.mesh, name )
         if name == "ExtrusionAlongPathObjX":
             return getattr( self.mesh, "ExtrusionAlongPathX" ) # other method name
             return getattr( self.mesh, name )
         if name == "ExtrusionAlongPathObjX":
             return getattr( self.mesh, "ExtrusionAlongPathX" ) # other method name

-        print "meshEditor: attribute '%s' NOT FOUND" % name
+        print("meshEditor: attribute '%s' NOT FOUND" % name)

         return None
     def __deepcopy__(self, memo=None):
         return None
     def __deepcopy__(self, memo=None):

-        new = self.__class__()
+        new = self.__class__(self)

         return new
     def FindCoincidentNodes(self,*args): # a 2nd arg added (SeparateCornerAndMediumNodes)
         if len( args ) == 1: args += False,
         return new
     def FindCoincidentNodes(self,*args): # a 2nd arg added (SeparateCornerAndMediumNodes)
         if len( args ) == 1: args += False,


@@ -6885,13 +7074,13 @@ class algoCreator:
         """
         Store a python class of algorithm
         """
         """
         Store a python class of algorithm
         """

-        if type( algoClass ).__name__ == 'classobj' and \
+        if inspect.isclass(algoClass) and \

            hasattr( algoClass, "algoType"):
             self.algoTypeToClass[ algoClass.algoType ] = algoClass
             if not self.defaultAlgoType and \
                hasattr( algoClass, "isDefault") and algoClass.isDefault:
                 self.defaultAlgoType = algoClass.algoType
            hasattr( algoClass, "algoType"):
             self.algoTypeToClass[ algoClass.algoType ] = algoClass
             if not self.defaultAlgoType and \
                hasattr( algoClass, "isDefault") and algoClass.isDefault:
                 self.defaultAlgoType = algoClass.algoType

-            #print "Add",algoClass.algoType, "dflt",self.defaultAlgoType
+            #print("Add",algoClass.algoType, "dflt",self.defaultAlgoType)

 
     def copy(self, mesh):
         """
 
     def copy(self, mesh):
         """


@@ -6939,10 +7128,10 @@ class algoCreator:
             algoType = self.defaultAlgoType
         if not algoType and self.algoTypeToClass:
             algoType = sorted( self.algoTypeToClass.keys() )[0]
             algoType = self.defaultAlgoType
         if not algoType and self.algoTypeToClass:
             algoType = sorted( self.algoTypeToClass.keys() )[0]

-        if self.algoTypeToClass.has_key( algoType ):
-            #print "Create algo",algoType
+        if algoType in self.algoTypeToClass:
+            #print("Create algo",algoType)

             return self.algoTypeToClass[ algoType ]( self.mesh, shape )
             return self.algoTypeToClass[ algoType ]( self.mesh, shape )

-        raise RuntimeError, "No class found for algo type %s" % algoType
+        raise RuntimeError( "No class found for algo type %s" % algoType)

         return None
 
 class hypMethodWrapper:
         return None
 
 class hypMethodWrapper:


@@ -6953,7 +7142,7 @@ class hypMethodWrapper:
     def __init__(self, hyp, method):
         self.hyp    = hyp
         self.method = method
     def __init__(self, hyp, method):
         self.hyp    = hyp
         self.method = method

-        #print "REBIND:", method.__name__
+        #print("REBIND:", method.__name__)

         return
 
     def __call__(self,*args):
         return
 
     def __call__(self,*args):


@@ -6964,7 +7153,7 @@ class hypMethodWrapper:
         if not args:
             return self.method( self.hyp, *args ) # hypothesis method with no args
 
         if not args:
             return self.method( self.hyp, *args ) # hypothesis method with no args
 

-        #print "MethWrapper.__call__",self.method.__name__, args
+        #print("MethWrapper.__call__", self.method.__name__, args)

         try:
             parsed = ParseParameters(*args)     # replace variables with their values
             self.hyp.SetVarParameter( parsed[-2], self.method.__name__ )
         try:
             parsed = ParseParameters(*args)     # replace variables with their values
             self.hyp.SetVarParameter( parsed[-2], self.method.__name__ )


@@ -6972,11 +7161,11 @@ class hypMethodWrapper:
         except omniORB.CORBA.BAD_PARAM: # raised by hypothesis method call
             # maybe there is a replaced string arg which is not variable
             result = self.method( self.hyp, *args )
         except omniORB.CORBA.BAD_PARAM: # raised by hypothesis method call
             # maybe there is a replaced string arg which is not variable
             result = self.method( self.hyp, *args )

-        except ValueError, detail: # raised by ParseParameters()
+        except ValueError as detail: # raised by ParseParameters()

             try:
                 result = self.method( self.hyp, *args )
             except omniORB.CORBA.BAD_PARAM:
             try:
                 result = self.method( self.hyp, *args )
             except omniORB.CORBA.BAD_PARAM:

-                raise ValueError, detail # wrong variable name
+                raise ValueError(detail) # wrong variable name

 
         return result
     pass
 
         return result
     pass


@@ -7009,25 +7198,25 @@ for pluginName in os.environ[ "SMESH_MeshersList" ].split( ":" ):
     Bind methods creating mesher plug-ins to the Mesh class
     """
 
     Bind methods creating mesher plug-ins to the Mesh class
     """
 

-    # print "pluginName: ", pluginName
+    # print("pluginName: ", pluginName)

     pluginBuilderName = pluginName + "Builder"
     try:
         exec( "from salome.%s.%s import *" % (pluginName, pluginBuilderName))
     pluginBuilderName = pluginName + "Builder"
     try:
         exec( "from salome.%s.%s import *" % (pluginName, pluginBuilderName))

-    except Exception, e:
+    except Exception as e:

         from salome_utils import verbose
         from salome_utils import verbose

-        if verbose(): print "Exception while loading %s: %s" % ( pluginBuilderName, e )
+        if verbose(): print("Exception while loading %s: %s" % ( pluginBuilderName, e ))

         continue
     exec( "from salome.%s import %s" % (pluginName, pluginBuilderName))
     plugin = eval( pluginBuilderName )
         continue
     exec( "from salome.%s import %s" % (pluginName, pluginBuilderName))
     plugin = eval( pluginBuilderName )

-    # print "  plugin:" , str(plugin)
+    # print("  plugin:" , str(plugin))

 
     # add methods creating algorithms to Mesh
     for k in dir( plugin ):
         if k[0] == '_': continue
         algo = getattr( plugin, k )
 
     # add methods creating algorithms to Mesh
     for k in dir( plugin ):
         if k[0] == '_': continue
         algo = getattr( plugin, k )

-        # print "             algo:", str(algo)
-        if type( algo ).__name__ == 'classobj' and hasattr( algo, "meshMethod" ):
-            # print "                     meshMethod:" , str(algo.meshMethod)
+        #print("             algo:", str(algo))
+        if inspect.isclass(algo) and hasattr(algo, "meshMethod"):
+            #print("                     meshMethod:" , str(algo.meshMethod))

             if not hasattr( Mesh, algo.meshMethod ):
                 setattr( Mesh, algo.meshMethod, algoCreator( algo.meshMethod ))
                 pass
             if not hasattr( Mesh, algo.meshMethod ):
                 setattr( Mesh, algo.meshMethod, algoCreator( algo.meshMethod ))
                 pass