diff --git a/EGkMedialAxis.h b/EGkMedialAxis.h
new file mode 100644
index 0000000..e39f592
--- /dev/null
+++ b/EGkMedialAxis.h
@@ -0,0 +1,27 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2022-2022
+//----------------------------------------------------------------------------
+// File : MedialAxis.h           Data : 22.08.22         Versione : 2.4h2
+// Contenuto : Dichiarazione funzione calcolo MedialAxis principale.
+//
+//
+//
+// Modifiche : 22.08.22 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkCurve.h"
+
+//----------------------- Macro per import/export ----------------------------
+#undef EGK_EXPORT
+#if defined( I_AM_EGK)            // da definirsi solo nella DLL
+   #define EGK_EXPORT __declspec( dllexport)
+#else
+   #define EGK_EXPORT __declspec( dllimport)
+#endif
+
+//-----------------------------------------------------------------------------
+EGK_EXPORT bool CurveSimpleMedialAxis( const ICurve* pCrv, PolyLine& PL) ;
diff --git a/EGkPoint3d.h b/EGkPoint3d.h
index 2707e24..e0c33a0 100644
--- a/EGkPoint3d.h
+++ b/EGkPoint3d.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2013-2014
+//  EgalTech 2013-2022
 //----------------------------------------------------------------------------
-// File : EGkPoint3d.h           Data : 30.05.14          Versione : 1.5e10
+// File : EGkPoint3d.h           Data : 22.08.224          Versione : 2.4h2
 // Contenuto : Dichiarazione della classe Punto 3d.
 //
 //
@@ -364,3 +364,36 @@ AreSamePointXYExact( const Point3d& ptP1, const Point3d& ptP2)
 {
    return ( SqDistXY( ptP1, ptP2) < SQ_EPS_ZERO) ;
 }
+
+//----------------------------------------------------------------------------
+//! Restituisce una copia in locale del punto passato
+//----------------------------------------------------------------------------
+inline Point3d
+GetToLoc( const Point3d& ptP, const Frame3d& frRef)
+{
+   Point3d ptQ = ptP ;
+   ptQ.ToLoc( frRef) ;
+   return ptQ ;
+}
+
+//----------------------------------------------------------------------------
+//! Restituisce una copia in globale del punto passato
+//----------------------------------------------------------------------------
+inline Point3d
+GetToGlob( const Point3d& ptP, const Frame3d& frRef)
+{
+   Point3d ptQ = ptP ;
+   ptQ.ToGlob( frRef) ;
+   return ptQ ;
+}
+
+//----------------------------------------------------------------------------
+//! Restituisce una copia dal primo al secondo riferimento del punto passato
+//----------------------------------------------------------------------------
+inline Point3d
+GetLocToLoc( const Point3d& ptP, const Frame3d& frOri, const Frame3d& frDest)
+{
+   Point3d ptQ = ptP ;
+   ptQ.LocToLoc( frOri, frDest) ;
+   return ptQ ;
+}
diff --git a/EGkVector3d.h b/EGkVector3d.h
index 1c32a40..4dff636 100644
--- a/EGkVector3d.h
+++ b/EGkVector3d.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
 //  EgalTech 2013-2022
 //----------------------------------------------------------------------------
-// File : EGkVector3d.h          Data : 18.082.22          Versione : 2.4h2
+// File : EGkVector3d.h          Data : 22.08.22          Versione : 2.4h2
 // Contenuto : Dichiarazione della classe Vettore 3d.
 //
 //
@@ -403,3 +403,36 @@ AreOrthoExact( const Vector3d& vtV1, const Vector3d& vtV2)
 {
    return ( abs( vtV1 * vtV2) < COS_ORTO_ANG_ZERO) ;
 }
+
+//----------------------------------------------------------------------------
+//! Restituisce una copia in locale del vettore passato
+//----------------------------------------------------------------------------
+inline Vector3d
+GetToLoc( const Vector3d& vtV, const Frame3d& frRef)
+{
+   Vector3d vtW = vtV ;
+   vtW.ToLoc( frRef) ;
+   return vtW ;
+}
+
+//----------------------------------------------------------------------------
+//! Restituisce una copia in globale del vettore passato
+//----------------------------------------------------------------------------
+inline Vector3d
+GetToGlob( const Vector3d& vtV, const Frame3d& frRef)
+{
+   Vector3d vtW = vtV ;
+   vtW.ToGlob( frRef) ;
+   return vtW ;
+}
+
+//----------------------------------------------------------------------------
+//! Restituisce una copia dal primo al secondo riferimento del vettore passato
+//----------------------------------------------------------------------------
+inline Vector3d
+GetLocToLoc( const Vector3d& vtV, const Frame3d& frOri, const Frame3d& frDest)
+{
+   Vector3d vtW = vtV ;
+   vtW.LocToLoc( frOri, frDest) ;
+   return vtW ;
+}
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 1ea3964..3752b3b 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -506,6 +506,7 @@ EXE_EXPORT int  ExeSplitText( int nId, int* pnCount) ;
 EXE_EXPORT bool ExeInvertCurve( const INTVECTOR& vIds) ;
 EXE_EXPORT bool ExeOffsetCurve( int nId, double dDist, int nType) ;
 EXE_EXPORT int  ExeOffsetCurveAdv( int nId, double dDist, int nType, int* pnCount) ;
+EXE_EXPORT int  ExeCurveMedialAxis( int nId) ;
 EXE_EXPORT bool ExeApproxCurve( int nId, int nApprType, double dLinTol) ;
 EXE_EXPORT bool ExeProjectCurveOnPlane( int nId, const Point3d& ptOn, const Vector3d& vtN, int nRefType) ;
 EXE_EXPORT bool ExeChangeClosedCurveStart( int nId, double dU) ;