diff --git a/MyVeinMatch/VeinMatchingWindow.xaml b/MyVeinMatch/VeinMatchingWindow.xaml
index e0198e1..9da5d9b 100644
--- a/MyVeinMatch/VeinMatchingWindow.xaml
+++ b/MyVeinMatch/VeinMatchingWindow.xaml
@@ -7,7 +7,10 @@
         Initialized="Window_Initialized"  
         Title="🚌 VEIN MATCH 🏘"
         MinWidth="300" MinHeight="300">
-   
+   <Window.InputBindings>
+      <KeyBinding Command="{Binding Confirm}" Key="Esc"/>
+   </Window.InputBindings>
+
    <Window.Resources>
       <Style TargetType="{x:Type Window}">
          <Setter Property="Template">
@@ -187,8 +190,10 @@
                                   Margin="1,5,1,0"/>
                         <CheckBox Name="InvertOption" Margin="1,5,1,0" 
                                   Foreground="{DynamicResource Omag_White}">Invert</CheckBox>
-                        <CheckBox Name="FlipOption" Margin="1,5,1,0" 
-                                  Foreground="{DynamicResource Omag_White}">Flip</CheckBox>
+                        <CheckBox Name="FlipOption1" Margin="1,5,1,0" 
+                                  Foreground="{DynamicResource Omag_White}">Flip ∥</CheckBox>
+                        <CheckBox Name="FlipOption2" Margin="1,5,1,0" 
+                                  Foreground="{DynamicResource Omag_White}">Flip ⟂</CheckBox>
                      </StackPanel>
                   </Expander>
                </Border>
diff --git a/MyVeinMatch/VeinMatchingWindow.xaml.vb b/MyVeinMatch/VeinMatchingWindow.xaml.vb
index 043f7e2..8a96ade 100644
--- a/MyVeinMatch/VeinMatchingWindow.xaml.vb
+++ b/MyVeinMatch/VeinMatchingWindow.xaml.vb
@@ -51,6 +51,7 @@ Public Class VeinMatchingWindow
    Private m_ptBeforeTrasf As New Point3d
    Private m_dCorrection As Double = 0
    Private m_bPreview As Boolean = False
+   Private m_ptPair As New Point3d
    ' Nero, Bianco, Fucsia, Rosso, Verde
    Private m_ColorList As New List(Of Color3d)({New Color3d(0, 0, 0), New Color3d(255, 255, 255), New Color3d(247, 21, 237),
                                                New Color3d(235, 12, 12), New Color3d(78, 249, 43)})
@@ -410,11 +411,15 @@ Line1:
             If EgtGetType(nId) = GDB_TY.CRV_LINE And PartSolidIdTempSel.nIdLineAxisRotate = -1 Then
                PartSolidIdTempSel.nIdLineAxisRotate = nId
                EgtSetMark(nId)
+               ' se trovo già un valore scritto nella casella di testo allora ruoto subito il part attorno all'asse indicato
+               Text5_Changed()
                Return
             ElseIf EgtGetType(nId) = GDB_TY.CRV_LINE And PartSolidIdTempSel.nIdLineAxisRotate <> -1 Then
                EgtResetMark(PartSolidIdTempSel.nIdLineAxisRotate)
                PartSolidIdTempSel.nIdLineAxisRotate = nId
                EgtSetMark(nId)
+               ' se trovo già un valore scritto nella casella di testo allora ruoto subito il part attorno all'asse indicato
+               Text5_Changed()
             End If
             ' Passo al successivo
             nId = EgtGetNextObjInSelWin()
@@ -1299,6 +1304,8 @@ Line1:
          Dim nOriId As Integer = GDB_ID.NULL
          EgtGetInfo(IdFP, KEY_ORI_ID, nOriId)
          dThick = GetRawHeightFromPart(nOriId, m_nVeinCtx, OmagOFFICEMap.refSceneHostVM.MainScene.GetCtx())
+         ' forza thickness a 20
+         'dThick = 20
          CreateSolid(IdFP, dThick, False)
          IdFP = EgtGetNextPart(IdFP)
          EgtGetName(IdFP, sName)
@@ -1356,7 +1363,7 @@ Line1:
       EgtSetName(TempLay_Y, "AxisY")
       EgtMove(TempLay_Y, vtMove)
       Dim TempLay_Z As Integer = EgtCreateGroup(PartSolidSel.TernaId)
-      Dim Line_Z As Integer = EgtCreateLine(TempLay_Z, New Point3d(0, 0, -(100 + PartSolidSel.bbSolid.DimZ / 2)), New Point3d(0, 0, 100 + PartSolidSel.bbSolid.DimZ / 2), GDB_RT.GLOB)
+      Dim Line_Z As Integer = EgtCreateLine(TempLay_Z, New Point3d(0, 0, -(200 + PartSolidSel.bbSolid.DimZ / 2)), New Point3d(0, 0, 200 + PartSolidSel.bbSolid.DimZ / 2), GDB_RT.GLOB)
       EgtSetColor(Line_Z, New Color3d(0, 0, 255))
       EgtSetName(TempLay_Z, "AxisZ")
       EgtMove(TempLay_Z, vtMove)
@@ -1372,7 +1379,7 @@ Line1:
       If PartSolidIdSel.nIdLineAxisRotate = GDB_ID.NULL Then Return
       EgtStartPoint(PartSolidIdSel.nIdLineAxisRotate, GDB_ID.ROOT, ptStart)
       EgtStartVector(PartSolidIdSel.nIdLineAxisRotate, GDB_ID.ROOT, vtDir)
-      PartSolidIdSel.Rotate(ptStart, vtDir, dAng)
+      PartSolidIdSel.Rotate(ptStart, vtDir, dAng, False, True)
       'PartSolidIdSel.DeselectPart()
       'm_nIdPart = -1
       EgtDraw()
@@ -1384,20 +1391,26 @@ Line1:
       If String.IsNullOrEmpty(sAng) Then Return
       If Not IsNumeric(sAng) Then Return
       Dim dAng As Double = CDbl(sAng)
-      RotatePart(dAng - m_dAngRot)
+      If m_dAngRot <> 0 Then
+         ResetRotation(False, False)
+      End If
+      RotatePart(dAng)
+
       m_dAngRot = dAng
    End Sub
 
    Private Sub TgBtn_Rotation_Uncheck() Handles TgBtn_Rotation.Unchecked
       ' conferma rotazione
       'TgBtn4.IsChecked = False
-      Text5.Text = "0"
+      'Text5.Text = "0"
       m_dAngRot = 0
       If m_nIdPart = GDB_ID.NULL Then Return
       Dim PartSolidSel = GetPartSolid(m_nIdPart)
       ' se ho effettviamente fatto una rotazione attivo il pulsante undo
-      'If PartSolidSel.nIdLineAxisRotate <> GDB_ID.NULL Then UndoBtn.IsEnabled = True
-      'PartSolidSel.ConfirmRotate()
+      If PartSolidSel.nIdLineAxisRotate <> GDB_ID.NULL Then
+         ' salvo l'operazione nella storia
+         PartSolidSel.ConfirmRotate()
+      End If
       PartSolidSel.DeselectPart()
       PartSolidSel.ResetData()
       m_nIdPart = -1
@@ -1410,15 +1423,24 @@ Line1:
 
    Private Sub ResetRotationBtn_Click() Handles ResetRotationBtn.Click
       ' resetta rotazione
+
       'RotatePart(-m_dAngRot)
-      Text5.Text = "0"
+      'Text5.Text = "0"
+      ResetRotation(True, True)
+   End Sub
+
+   Private Sub ResetRotation(Optional bEraseData As Boolean = False, Optional bDraw As Boolean = False)
       m_dAngRot = 0
       If m_nIdPart <> -1 Then
          Dim PartSolidSel As PartSolid = GetPartSolid(m_nIdPart)
          If Not IsNothing(PartSolidSel) Then
-            PartSolidSel.ResetData()
+            PartSolidSel.UndoTempTrasf()
+            If bEraseData Then PartSolidSel.ResetData()
          End If
       End If
+      If bDraw Then
+         EgtDraw()
+      End If
    End Sub
 
    Private Sub TgBtn_Pair_Click(sender As Object, e As RoutedEventArgs) Handles TgBtn_Pair.Click
@@ -1505,6 +1527,8 @@ Line1:
             ptFin = ptMidS
          Case Else
       End Select
+      ' salvo il punto di arrivo
+      m_ptPair = ptFin
       ' calcolo il vettore movimento e sposto solid e part
       Dim vtMove As Vector3d = ptFin - ptIni
       Dim dAng As Double = GetAngle(vtDirF, vtDirS)
@@ -1660,6 +1684,7 @@ Line2:
       'resetto il numero di operazioni effettutate durante il pair
       m_nTransfNum = -1
       m_nIdPart = GDB_ID.NULL
+      m_ptPair = New Point3d
       'UndoBtn.IsEnabled = False
       'RedoBtn.IsEnabled = False
       EgtDraw()
@@ -1681,7 +1706,7 @@ Line2:
       End If
    End Sub
 
-   Private Sub Flip_Changed() Handles FlipOption.Click
+   Private Sub FlipParallel_Changed() Handles FlipOption1.Click
       If TgBtn_Pair.IsChecked = False Then Return
       If m_nIdPart = GDB_ID.NULL Then Return
       Dim PartSolidSel As PartSolid = GetPartSolid(m_nIdPart)
@@ -1699,6 +1724,28 @@ Line2:
       EgtDraw()
    End Sub
 
+   Private Sub FlipPerpendicular_Changed() Handles FlipOption2.Click
+      If TgBtn_Pair.IsChecked = False Then Return
+      If m_nIdPart = GDB_ID.NULL Then Return
+      Dim PartSolidSel1 As PartSolid = GetPartSolid(m_nIdPart)
+      If PartSolidSel1.nIdLineSecond = GDB_ID.NULL Then Return
+      Dim PartSolidSel2 As PartSolid = GetPartSolid(EgtGetParent(EgtGetParent(PartSolidSel1.nIdLineSecond)))
+      ' recupero la normale della faccia principale del part del secondo part
+      Dim vtNorm As New Vector3d
+      EgtSurfFrNormVersor(PartSolidSel2.SurfId, GDB_ID.ROOT, vtNorm)
+      Dim vtStartDir As New Vector3d
+      EgtStartVector(PartSolidSel1.nIdLineSecond, GDB_ID.ROOT, vtStartDir)
+      Dim vtDir As Vector3d = vtNorm ^ vtStartDir
+      ' recupero il punto usato per l'accoppiamento
+      PartSolidSel1.Rotate(m_ptPair, vtDir, 180)
+      If FindInters(m_nIdPart) Then
+         MyMsgTxBl.Text = "Inters!"
+         MyMsgTxBl.Foreground = Brushes.Red
+      End If
+      m_nTransfNum += 1
+      EgtDraw()
+   End Sub
+
    Private Sub CompletePair()
       Dim PartSolidSel As PartSolid = GetPartSolid(m_nIdPart)
       Dim ptAx As New Point3d
@@ -2102,6 +2149,41 @@ Line2:
       Next
       Return Nothing
    End Function
+
+
+   'Public Sub confirmOperation() Handles KeyDown
+
+
+   'Private someCommand As ICommand
+   'Public Function Confirm() As ICommand
+   '   Return someCommand
+   'End Function
+
+   'someCommand As New ActionCommand()
+   'Public Class ActionCommand :   ICommand
+
+   ' Private ReadOnly Action _action
+
+   ' Public ActionCommand(Action action)
+
+   '     _action = action
+
+
+   ' Public void Execute(Object parameter)
+
+   '     _action()
+
+
+   ' Public bool CanExecute(Object parameter)
+
+   '     Return True;
+
+
+   ' Public Event EventHandler() CanExecuteChanged
+   'End Class
+
+
+
    'Friend Shared Function prova(ByRef nInt As Integer) As Boolean
    '   nInt += 1
    '   Return True
@@ -4189,8 +4271,9 @@ Public Class PartSolid
    End Sub
 
    Public Sub ConfirmRotate()
-      Dim trf As Transformation = LastRotation()
-      EgtRotate(m_PartSolidId, trf.m_ptO, trf.m_vtDir, trf.m_dAngOrId)
+      'Dim trf As Transformation = LastRotation()
+      'EgtRotate(m_PartSolidId, trf.m_ptO, trf.m_vtDir, trf.m_dAngOrId)
+      AddTransf(LastTempTransf())
    End Sub
 
    Public Function Center() As Point3d
@@ -4438,7 +4521,7 @@ Public Class PartSolid
    Public Sub ApplyTransf(trf As Transformation, Optional bSaveHist As Boolean = True)
       ' se ho una traslazione o una rotazione applico la trasformazione a tutto l'accoppiato
       If trf.m_dAngOrId = 0 Or Not AreSameVectorExact(New Vector3d, trf.m_vtDir) Then
-         RotateSingle(trf.m_ptO, trf.m_vtDir, trf.m_dAngOrId, bSaveHist)
+         'RotateSingle(trf.m_ptO, trf.m_vtDir, trf.m_dAngOrId, bSaveHist)
          For Each PartSolidSel In vPairSolid
             ' salvo la storia solo per il pezzo che ho selezionato(anche se si porta dietro tutti gli accoppiati nel movimento)
             If bSaveHist Then