diff --git a/EGkDllMain.cpp b/EGkDllMain.cpp
index 1cd9364..366e6be 100644
--- a/EGkDllMain.cpp
+++ b/EGkDllMain.cpp
@@ -19,11 +19,11 @@
 
 //--------------------------- Costanti ----------------------------------------
 #if defined( _DEBUG)
-   #define EGK_STR "EgtGeomKernelD32.dll ver. "
+   const char* EGK_STR = "EgtGeomKernelD32.dll ver. " ;
 #else
-   #define EGK_STR "EgtGeomKernelR32.dll ver. "
+   const char* EGK_STR = "EgtGeomKernelR32.dll ver. " ;
 #endif
-#define STR_DIM    40
+const int STR_DIM = 40 ;
 
 //-----------------------------------------------------------------------------
 static HINSTANCE s_hModule = NULL ;
diff --git a/EgtGeomKernel.vcxproj b/EgtGeomKernel.vcxproj
index a4654c0..bff6bbc 100644
--- a/EgtGeomKernel.vcxproj
+++ b/EgtGeomKernel.vcxproj
@@ -58,6 +58,7 @@
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_WINDOWS;I_AM_EGK;_DEBUG;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <OpenMPSupport>true</OpenMPSupport>
+      <CompileAs>CompileAsCpp</CompileAs>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -90,6 +91,7 @@ copy $(TargetPath) \EgtProg\Dll</Command>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;_WINDOWS;I_AM_EGK;NDEBUG;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <OpenMPSupport>true</OpenMPSupport>
+      <CompileAs>CompileAsCpp</CompileAs>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -134,6 +136,7 @@ copy $(TargetPath) \EgtProg\Dll</Command>
     <ClInclude Include="..\Include\EGkGeoObj.h" />
     <ClInclude Include="..\Include\EGkGeoObjType.h" />
     <ClInclude Include="..\Include\EGkGeoPoint3d.h" />
+    <ClInclude Include="..\Include\EGkGeoVector3d.h" />
     <ClInclude Include="..\Include\EGkPoint3d.h" />
     <ClInclude Include="..\Include\EGkVector3d.h" />
     <ClInclude Include="..\Include\EGkVersion.h" />
diff --git a/EgtGeomKernel.vcxproj.filters b/EgtGeomKernel.vcxproj.filters
index abe3e6f..bf61ba9 100644
--- a/EgtGeomKernel.vcxproj.filters
+++ b/EgtGeomKernel.vcxproj.filters
@@ -86,6 +86,9 @@
     <ClInclude Include="..\Include\EGkVersion.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
+    <ClInclude Include="..\Include\EGkGeoVector3d.h">
+      <Filter>File di intestazione</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="EgtGeomKernel.rc">
diff --git a/Frame3d.cpp b/Frame3d.cpp
index b71148f..c459f01 100644
--- a/Frame3d.cpp
+++ b/Frame3d.cpp
@@ -100,39 +100,39 @@ Frame3d::Set( const Point3d& ptOrig, Type nType)
    switch ( nType) {
    case TOP :
       m_nType = m_nZType ;
-      m_vtVersX.Set( 1, 0, 0) ;
-      m_vtVersY.Set( 0, 1, 0) ;
-      m_vtVersZ.Set( 0, 0, 1) ;
+      m_vtVersX = X_AX ;
+      m_vtVersY = Y_AX ;
+      m_vtVersZ = Z_AX ;
       break ;
    case BOTTOM :
       m_nType = BOTTOM ;
-      m_vtVersX.Set( 1, 0, 0) ;
-      m_vtVersY.Set( 0, -1, 0) ;
-      m_vtVersZ.Set( 0, 0, -1) ;
+      m_vtVersX = X_AX ;
+      m_vtVersY = - Y_AX ;
+      m_vtVersZ = - Z_AX ;
       break ;
    case FRONT :
       m_nType = FRONT ;
-      m_vtVersX.Set( 1, 0, 0) ;
-      m_vtVersY.Set( 0, 0, 1) ;
-      m_vtVersZ.Set( 0, -1, 0) ;
+      m_vtVersX = X_AX ;
+      m_vtVersY = Z_AX ;
+      m_vtVersZ = - Y_AX ;
       break ;
    case BACK :
       m_nType = BACK ;
-      m_vtVersX.Set( -1, 0, 0) ;
-      m_vtVersY.Set( 0, 0, 1) ;
-      m_vtVersZ.Set( 0, 1, 0) ;
+      m_vtVersX = - X_AX ;
+      m_vtVersY = Z_AX ;
+      m_vtVersZ = Y_AX ;
       break ;
    case LEFT :
       m_nType = LEFT ;
-      m_vtVersX.Set( 0, -1, 0) ;
-      m_vtVersY.Set( 0, 0, 1) ;
-      m_vtVersZ.Set( -1, 0, 0) ;
+      m_vtVersX = - Y_AX ;
+      m_vtVersY = Z_AX ;
+      m_vtVersZ = - X_AX ;
       break ;
    case RIGHT :
       m_nType = RIGHT ;
-      m_vtVersX.Set( 0, 1, 0) ;
-      m_vtVersY.Set( 0, 0, 1) ;
-      m_vtVersZ.Set( 1, 0, 0) ;
+      m_vtVersX = Y_AX ;
+      m_vtVersY = Z_AX ;
+      m_vtVersZ = X_AX ;
       break ;
    default :
       m_nType = ERR ;
@@ -150,10 +150,10 @@ Frame3d::Reset( void)
 {
    m_nType = TOP ;
    m_nZType = TOP ;
-   m_ptOrig.Set( 0, 0, 0) ;
-   m_vtVersX.Set( 1, 0, 0) ;
-   m_vtVersY.Set( 0, 1, 0) ;
-   m_vtVersZ.Set( 0, 0, 1) ;
+   m_ptOrig = ORIG ;
+   m_vtVersX = X_AX ;
+   m_vtVersY = Y_AX ;
+   m_vtVersZ = Z_AX ;
 
    return true ;
 }
diff --git a/GeoPoint3d.cpp b/GeoPoint3d.cpp
index 3b58645..a6875e0 100644
--- a/GeoPoint3d.cpp
+++ b/GeoPoint3d.cpp
@@ -32,7 +32,6 @@ GeoPoint3d::GeoPoint3d( void)
 //----------------------------------------------------------------------------
 GeoPoint3d::~GeoPoint3d( void)
 {
-   m_ptP.Set( 50, 100, 200) ;
 }
 
 //----------------------------------------------------------------------------
@@ -50,6 +49,7 @@ GeoPoint3d::Clone( void) const
 {
    GeoPoint3d* pGPt ;
 
+
   // alloco oggetto
    pGPt = new(nothrow) GeoPoint3d ;
    if ( pGPt != nullptr)
diff --git a/GeoPoint3d.h b/GeoPoint3d.h
index f12ce0e..a22b4d8 100644
--- a/GeoPoint3d.h
+++ b/GeoPoint3d.h
@@ -1,8 +1,8 @@
 //----------------------------------------------------------------------------
-//  EgalS
+//  EgalTech 2013-2013
 //----------------------------------------------------------------------------
-// File : GeoPoint3d.h         Data : 10.10.13          Versione : 1.2a3
-// Contenuto : Dichiarazione della classe Segmento di Linea.
+// File : GeoPoint3d.h         Data : 22.11.13          Versione : 1.3a1
+// Contenuto : Dichiarazione della classe Punto Geometrico 3d.
 //
 //
 //
@@ -19,14 +19,6 @@
 //----------------------------------------------------------------------------
 class GeoPoint3d : public IGeoPoint3d
 {
-   public :
-      GeoPoint3d( void) ;
-      bool Set( const Point3d& ptP) ;
-      virtual const GeoPoint3d& operator =( const GeoPoint3d& gpSrc)
-                                  { if ( &gpSrc != this)
-                                       m_ptP = gpSrc.m_ptP ;
-                                    return *this ; }
-
    public :
       virtual ~GeoPoint3d( void) ;
       virtual GeoPoint3d* Clone( void) const ;
@@ -53,9 +45,17 @@ class GeoPoint3d : public IGeoPoint3d
                 { return m_ptP.ToLoc( frRef) ;}
 
    public :
+      virtual bool Set( const Point3d& ptP) ;
       virtual const Point3d* GetPoint( void) const
                                 { return &m_ptP ; } 
 
+   public :
+      GeoPoint3d( void) ;
+      const GeoPoint3d& operator =( const GeoPoint3d& gpSrc)
+                           { if ( &gpSrc != this)
+                                m_ptP = gpSrc.m_ptP ;
+                             return *this ; }
+
    public :
       Point3d m_ptP ;
 } ;
diff --git a/GeoVector3d.h b/GeoVector3d.h
index d958461..3c8c250 100644
--- a/GeoVector3d.h
+++ b/GeoVector3d.h
@@ -1,8 +1,8 @@
 //----------------------------------------------------------------------------
-//  EgalS
+//  EgalTech 2013-2013
 //----------------------------------------------------------------------------
-// File : GeoVector3d.h      Data : 10.10.13          Versione : 1.2a3
-// Contenuto : Dichiarazione della classe Segmento di Linea.
+// File : GeoVector3d.h      Data : 22.11.13          Versione : 1.3a1
+// Contenuto : Dichiarazione della classe Vettore Geometrico 3d.
 //
 //
 //
@@ -13,20 +13,12 @@
 
 #pragma once
 
-#include "/EgtDev/Include/EGkGeoObj.h"
+#include "/EgtDev/Include/EGkGeoVector3d.h"
 
 
 //----------------------------------------------------------------------------
-class GeoVector3d : public IGeoObj
+class GeoVector3d : public IGeoVector3d
 {
-   public :
-      GeoVector3d( void) ;
-      bool Set( const Vector3d& vtV) ;
-      inline const GeoVector3d& operator =( const GeoVector3d& gvSrc)
-                            { if ( &gvSrc != this)
-                                 m_vtV = gvSrc.m_vtV ;
-                              return *this ; }
-
    public :
       virtual ~GeoVector3d( void) ;
       virtual GeoVector3d* Clone( void) const ;
@@ -53,9 +45,17 @@ class GeoVector3d : public IGeoObj
                 { return m_vtV.ToLoc( frRef) ;}
 
    public :
-      inline const Vector3d* GetVector( void) const
+      virtual bool Set( const Vector3d& vtV) ;
+      virtual const Vector3d* GetVector( void) const
                         { return &m_vtV ; } 
 
+   public :
+      GeoVector3d( void) ;
+      inline const GeoVector3d& operator =( const GeoVector3d& gvSrc)
+                            { if ( &gvSrc != this)
+                                 m_vtV = gvSrc.m_vtV ;
+                              return *this ; }
+
    public :
       Vector3d m_vtV ;
 } ;