diff --git a/EGkFrame3d.h b/EGkFrame3d.h
index e2f4daa..b92aa2d 100644
--- a/EGkFrame3d.h
+++ b/EGkFrame3d.h
@@ -30,8 +30,8 @@ class EGK_EXPORT Frame3d
       enum Type { ERR = 0, TOP = 1, BOTTOM = 2, FRONT = 3,
                   BACK = 4, LEFT = 5, RIGHT = 6, GEN = 7} ;
    public :
-      Frame3d( void)
-         : m_nType( TOP), m_nZType( TOP), m_ptOrig( ORIG),
+      Frame3d( bool bGlob = true)
+         : m_nType( bGlob ? TOP : ERR), m_nZType( bGlob ? TOP : ERR), m_ptOrig( ORIG),
            m_vtVersX( X_AX), m_vtVersY( Y_AX), m_vtVersZ( Z_AX) {}
       Frame3d( const Point3d& ptOrig)
          : m_nType( TOP), m_nZType( TOP), m_ptOrig( ptOrig),
@@ -43,7 +43,7 @@ class EGK_EXPORT Frame3d
       bool Set( const Point3d& ptOrig, const Vector3d& vtDirZ, const Vector3d& vtNearDirX) ;
       bool Set( const Point3d& ptOrig, Type nType) ;
       bool Set( const Point3d& ptOrig, double dAngCDeg, double dAngADeg, double dAngC1Deg) ;
-      bool Reset( void) ;
+      bool Reset( bool bGlob = true) ;
       bool ChangeOrig( const Point3d& ptOrig) ;
       bool Translate( const Vector3d& vtMove) ;
       bool Rotate( const Point3d& ptAx, const Vector3d& vtAx, double dAngDeg) ;
diff --git a/EGkVector3d.h b/EGkVector3d.h
index 048c264..8014aaa 100644
--- a/EGkVector3d.h
+++ b/EGkVector3d.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
 //  EgalTech 2013-2022
 //----------------------------------------------------------------------------
-// File : EGkVector3d.h          Data : 22.08.22          Versione : 2.4h2
+// File : EGkVector3d.h          Data : 27.08.22          Versione : 2.4h2
 // Contenuto : Dichiarazione della classe Vettore 3d.
 //
 //
@@ -74,18 +74,27 @@ class EGK_EXPORT Vector3d
       //! Verifica se il vettore è parallelo ed equiverso con X-
       bool IsXminus( void) const
              { return ( x < - EPS_ZERO  &&  abs( y) < EPS_ZERO  &&  abs( z) < EPS_ZERO) ; }
+      //! Verifica se il vettore è parallelo a X
+      bool IsX( void) const
+             { return ( abs( x) > EPS_ZERO  &&  abs( y) < EPS_ZERO  &&  abs( z) < EPS_ZERO) ; }
       //! Verifica se il vettore è parallelo ed equiverso con Y+
       bool IsYplus( void) const
              { return ( abs( x) < EPS_ZERO  &&  y > EPS_ZERO  &&  abs( z) < EPS_ZERO) ; }
       //! Verifica se il vettore è parallelo ed equiverso con Y-
       bool IsYminus( void) const
              { return ( abs( x) < EPS_ZERO  &&  y < - EPS_ZERO  &&  abs( z) < EPS_ZERO) ; }
+      //! Verifica se il vettore è parallelo a Y
+      bool IsY( void) const
+             { return ( abs( x) < EPS_ZERO  &&  abs( y) > EPS_ZERO  &&  abs( z) < EPS_ZERO) ; }
       //! Verifica se il vettore è parallelo ed equiverso con Z+
       bool IsZplus( void) const
              { return ( abs( x) < EPS_ZERO  &&  abs( y) < EPS_ZERO  &&  z > EPS_ZERO) ; }
       //! Verifica se il vettore è parallelo ed equiverso con Z-
       bool IsZminus( void) const
              { return ( abs( x) < EPS_ZERO  &&  abs( y) < EPS_ZERO  &&  z < - EPS_ZERO) ; }
+      //! Verifica se il vettore è parallelo a Z
+      bool IsZ( void) const
+             { return ( abs( x) < EPS_ZERO  &&  abs( y) < EPS_ZERO  &&  abs( z) > EPS_ZERO) ; }
       //! Verifica se il vettore è generico
       bool IsGeneric( void) const
              { return (( abs( x) > EPS_ZERO  &&  abs( y) > EPS_ZERO)  ||
diff --git a/EInAPI.h b/EInAPI.h
index 5c7bc7b..228ab6e 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -169,6 +169,7 @@ EIN_EXPORT BOOL __stdcall EgtLuaGetGlobStringVar( const wchar_t* wsVar, wchar_t*
 EIN_EXPORT BOOL __stdcall EgtLuaGetGlobVectorVar( const wchar_t* wsVar, double vtVal[3]) ;
 EIN_EXPORT BOOL __stdcall EgtLuaGetGlobPointVar( const wchar_t* wsVar, double ptVal[3]) ;
 EIN_EXPORT BOOL __stdcall EgtLuaResetGlobVar( const wchar_t* wsVar) ;
+EIN_EXPORT BOOL __stdcall EgtLuaExistsFunction( const wchar_t* wsFun) ;
 EIN_EXPORT BOOL __stdcall EgtLuaCallFunction( const wchar_t* wsFun) ;
 EIN_EXPORT BOOL __stdcall EgtLuaEvalNumExpr( const wchar_t* wsExpr, double* pdVal) ;
 EIN_EXPORT BOOL __stdcall EgtLuaEvalStringExpr( const wchar_t* wsExpr, wchar_t*& wsVal) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 3752b3b..232b959 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -174,6 +174,7 @@ EXE_EXPORT bool ExeLuaGetGlobStringVar( const std::string& sVar, std::string& sV
 EXE_EXPORT bool ExeLuaGetGlobVectorVar( const std::string& sVar, Vector3d& vtVal) ;
 EXE_EXPORT bool ExeLuaGetGlobPointVar( const std::string& sVar, Point3d& ptVal) ;
 EXE_EXPORT bool ExeLuaResetGlobVar( const std::string& sVar) ;
+EXE_EXPORT bool ExeLuaExistsFunction( const std::string& sFun) ;
 EXE_EXPORT bool ExeLuaCallFunction( const std::string& sFun) ;
 EXE_EXPORT bool ExeLuaEvalNumExpr( const std::string& sExpr, double* pdVal) ;
 EXE_EXPORT bool ExeLuaEvalStringExpr( const std::string& sExpr, std::string& sVal) ;