diff --git a/API_MachMgr.cpp b/API_MachMgr.cpp
index d7d32a9..c12410d 100644
--- a/API_MachMgr.cpp
+++ b/API_MachMgr.cpp
@@ -2123,40 +2123,85 @@ __stdcall EgtGetCalcAngles( const double vtDirT[3], const double vtDirA[3],
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtGetCalcPositions( const double ptP[3], double dAngA, double dAngB,
-                               int* pnStat, double* pdX, double* pdY, double* pdZ)
+__stdcall EgtGetCalcAnglesEx( const double vtDirT[3], const double vtDirA[3],
+                              int* pnStat, double*& vAngs1, double*& vAngs2, int* pnCount)
 {
-   if ( ptP == nullptr  ||
-        pnStat == nullptr  ||  pdX == nullptr  ||  pdY == nullptr  ||  pdZ == nullptr)
+   if ( vtDirT == nullptr  ||  vtDirA == nullptr  ||
+        pnStat == nullptr  ||  pnCount == nullptr  ||  &vAngs1 == nullptr  ||  &vAngs2 == nullptr)
       return FALSE ;
-   return ( ExeGetCalcPositions( ptP, dAngA, dAngB, *pnStat, *pdX, *pdY, *pdZ) ? TRUE : FALSE) ;
-}
-
-//-----------------------------------------------------------------------------
-BOOL
-__stdcall EgtGetCalcTipFromPositions( double dX, double dY, double dZ, double dAngA, double dAngB,
-                                      BOOL bBottom, double ptTip[3])
-{
-   Point3d ptTmp ;
-   if ( ! ExeGetCalcTipFromPositions( dX, dY, dZ, dAngA, dAngB, ( bBottom != FALSE), ptTmp))
+   DBLVECTOR vA1, vA2 ;
+   if ( ! ExeGetCalcAngles( vtDirT, vtDirA, *pnStat, vA1, vA2)  ||  vA1.size() != vA2.size())
       return FALSE ;
-  // ritorno i dati
-   if ( ptTip != nullptr)
-      VEC_FROM_3D( ptTip, ptTmp) ;
+  // restituzione vettori angoli
+   int nDim = int( vA1.size()) ;
+   if ( nDim == 0) {
+      vAngs1 = nullptr ;
+      vAngs2 = nullptr ;
+   }
+   else {
+      vAngs1 = (double*) malloc( nDim * sizeof( double)) ;
+      if ( vAngs1 == nullptr)
+         return FALSE ;
+      vAngs2 = (double*) malloc( nDim * sizeof( double)) ;
+      if ( vAngs2 == nullptr) {
+         free( vAngs1) ;
+         return FALSE ;
+      }
+      for ( int i = 0 ; i < nDim ; ++ i) {
+         vAngs1[i] = vA1[i] ;
+         vAngs2[i] = vA2[i] ;
+      }
+   }
+   *pnCount = nDim ;
    return TRUE ;
 }
 
 //-----------------------------------------------------------------------------
 BOOL
-__stdcall EgtGetCalcToolDirFromAngles( double dAngA, double dAngB, double vtDir[3])
+__stdcall EgtGetCalcPositions( const double ptP[3], int nCount, const double dAngs[],
+                               int* pnStat, double* pdX, double* pdY, double* pdZ)
 {
-   DBLVECTOR vAng( 2) ; vAng[0] = dAngA ; vAng[1] = dAngB ;
+   if ( ptP == nullptr  ||  dAngs == nullptr  ||
+        pnStat == nullptr  ||  pdX == nullptr  ||  pdY == nullptr  ||  pdZ == nullptr)
+      return FALSE ;
+   DBLVECTOR vAng ;
+   for ( int i = 0 ; i < nCount ; ++i)
+      vAng.push_back( dAngs[i]) ;
+   return ( ExeGetCalcPositions( ptP, vAng, *pnStat, *pdX, *pdY, *pdZ) ? TRUE : FALSE) ;
+}
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtGetCalcTipFromPositions( double dX, double dY, double dZ, int nCount, const double dAngs[],
+                                      BOOL bBottom, double ptTip[3])
+{
+   if ( dAngs == nullptr  ||  ptTip == nullptr)
+      return FALSE ;
+   DBLVECTOR vAng ;
+   for ( int i = 0 ; i < nCount ; ++i)
+      vAng.push_back( dAngs[i]) ;
+   Point3d ptTmp ;
+   if ( ! ExeGetCalcTipFromPositions( dX, dY, dZ, vAng, ( bBottom != FALSE), ptTmp))
+      return FALSE ;
+  // ritorno i dati
+   VEC_FROM_3D( ptTip, ptTmp) ;
+   return TRUE ;
+}
+
+//-----------------------------------------------------------------------------
+BOOL
+__stdcall EgtGetCalcToolDirFromAngles( int nCount, const double dAngs[], double vtDir[3])
+{
+   if ( dAngs == nullptr  ||  vtDir == nullptr)
+      return FALSE ;
+   DBLVECTOR vAng ;
+   for ( int i = 0 ; i < nCount ; ++i)
+      vAng.push_back( dAngs[i]) ;
    Vector3d vtTmp ;
    if ( ! ExeGetCalcToolDirFromAngles( vAng, vtTmp))
       return FALSE ;
   // ritorno i dati
-   if ( vtDir != nullptr)
-      VEC_FROM_3D( vtDir, vtTmp) ;
+   VEC_FROM_3D( vtDir, vtTmp) ;
    return TRUE ;
 }
 
diff --git a/EgtInterface.rc b/EgtInterface.rc
index f6003a8..923734b 100644
Binary files a/EgtInterface.rc and b/EgtInterface.rc differ