diff --git a/EXE_GdbGetCurve.cpp b/EXE_GdbGetCurve.cpp
index 54b6702..8db34c9 100644
--- a/EXE_GdbGetCurve.cpp
+++ b/EXE_GdbGetCurve.cpp
@@ -26,6 +26,7 @@
 #include "/EgtDev/Include/EGkDistPointCurve.h"
 #include "/EgtDev/Include/EGkIntersCurves.h"
 #include "/EgtDev/Include/EGkSurfFlatRegion.h"
+#include "EgtDev/Include/EGkVoronoi.h"
 
 //----------------------------------------------------------------------------
 bool
@@ -676,3 +677,93 @@ ExeCurveCompoNormVersor( int nId, int nSimpCrv, int nRefId, Vector3d& vtNorm)
   // gestione trasformazione ( eventuale)
    return TransformVector( pGeomDB, nId, nRefId, vtNorm) ;
 }
+
+//----------------------------------------------------------------------------
+int
+ExeCurveGetVoronoi( int nId, int nDestGrpId, int nBound, int* pnCount) 
+{
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, false)
+  // recupero la curva
+   const ICurve* pCrv = GetCurve( pGeomDB->GetGeoObj( nId)) ;
+   if ( pCrv == nullptr)
+      return GDB_ID_NULL ;
+  // recupero il riferimento della curva
+   Frame3d frCrv ;
+   if ( ! pGeomDB->GetGlobFrame( nId, frCrv))
+      return GDB_ID_NULL ;
+  // recupero il riferimento di destinazione
+   Frame3d frDest ;
+   if ( ! pGeomDB->GetGroupGlobFrame( nDestGrpId, frDest))
+      return GDB_ID_NULL ;
+
+  // recupero oggetto voronoi e calcolo diagramma di Voronoi
+   Voronoi* voronoi = pCrv->GetVoronoiObject() ;
+   if ( voronoi == nullptr)
+      return GDB_ID_NULL ;
+   ICURVEPOVECTOR vCrv ;
+   voronoi->CalcVoronoiDiagram( vCrv, nBound) ;
+
+  // inserisco i risultati nel DB geometrico
+   int nFirstId = GDB_ID_NULL ;
+   int nCount = 0 ;
+   for ( int i = 0 ; i < int( vCrv.size()) ; i++) {
+      vCrv[i]->LocToLoc( frCrv, frDest) ;
+      int nId = pGeomDB->AddGeoObj( GDB_ID_NULL, nDestGrpId, Release( vCrv[i])) ;
+      if ( nId != GDB_ID_NULL) {
+        nCount ++ ;
+        if ( nFirstId == GDB_ID_NULL)
+           nFirstId = nId ;      
+      }  
+   }
+
+  // restituisco risultati
+   if ( pnCount != nullptr)
+      *pnCount = nCount ;
+   return nFirstId ;
+}
+
+//----------------------------------------------------------------------------
+int
+ExeCurveGetFatCurve( int nId, int nDestGrpId, double dRad, bool bSquareEnds, bool bSquareMids, int* pnCount) 
+{
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, false)
+  // recupero la curva
+   const ICurve* pCrv = GetCurve( pGeomDB->GetGeoObj( nId)) ;
+   if ( pCrv == nullptr)
+      return GDB_ID_NULL ;
+  // recupero il riferimento della curva
+   Frame3d frCrv ;
+   if ( ! pGeomDB->GetGlobFrame( nId, frCrv))
+      return GDB_ID_NULL ;
+  // recupero il riferimento di destinazione
+   Frame3d frDest ;
+   if ( ! pGeomDB->GetGroupGlobFrame( nDestGrpId, frDest))
+      return GDB_ID_NULL ;
+
+  // recupero oggetto voronoi e calcolo la curva ingrossata
+   Voronoi* voronoi = pCrv->GetVoronoiObject() ;
+   if ( voronoi == nullptr)
+      return GDB_ID_NULL ;
+   ICURVEPOVECTOR vCrv ;
+   voronoi->CalcFatCurve( vCrv, dRad, bSquareEnds, bSquareMids) ;
+
+  // inserisco i risultati nel DB geometrico
+   int nFirstId = GDB_ID_NULL ;
+   int nCount = 0 ;
+   for ( int i = 0 ; i < int( vCrv.size()) ; i++) {     
+      vCrv[i]->LocToLoc( frCrv, frDest) ;
+      int nId = pGeomDB->AddGeoObj( GDB_ID_NULL, nDestGrpId, Release( vCrv[i])) ;
+      if ( nId != GDB_ID_NULL) {
+         nCount ++ ;
+         if ( nFirstId == GDB_ID_NULL)
+            nFirstId = nId ;      
+      }  
+   }
+
+  // restituisco risultati
+   if ( pnCount != nullptr)
+      *pnCount = nCount ;
+   return nFirstId ;
+}
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index da7c8e9..8d235a8 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_GdbGetCurve.cpp b/LUA_GdbGetCurve.cpp
index 112d39d..edaa44a 100644
--- a/LUA_GdbGetCurve.cpp
+++ b/LUA_GdbGetCurve.cpp
@@ -18,6 +18,7 @@
 #include "/EgtDev/Include/EXeExecutor.h"
 #include "/EgtDev/Include/EXeConst.h"
 #include "/EgtDev/Include/EGkLuaAux.h"
+#include "/EgtDev/Include/EGkVoronoi.h"
 
 //----------------------------------------------------------------------------
 static int
@@ -531,6 +532,58 @@ LuaCurveCompoNormVersor( lua_State* L)
    return 1 ;
 }
 
+//----------------------------------------------------------------------------
+static int
+LuaCurveGetVoronoi( lua_State* L)
+{
+  // 2 o 3 parametri : Id, nDestId [, nBound]
+   int nId ;
+   LuaCheckParam( L, 1, nId)
+   int nDestGrpId ;
+   LuaCheckParam( L, 2, nDestGrpId)
+   int nBound = VORONOI_STD_BOUND ;
+   LuaGetParam( L, 3, nBound) ;
+
+   LuaClearStack( L) ;
+   int nCount = 0 ;
+   int nNewId = ExeCurveGetVoronoi( nId, nDestGrpId, nBound, &nCount) ;
+   if ( nNewId != GDB_ID_NULL)
+      LuaSetParam( L, nNewId) ;
+   else
+      LuaSetParam( L) ;
+
+   LuaSetParam( L, nCount) ;
+   return 2 ;
+}
+
+//----------------------------------------------------------------------------
+static int
+LuaCurveGetFatCurve( lua_State* L)
+{
+  // 4 o 5 parametri : Id, nDestId, dRad, bSquare [, bSquareMids]
+   int nId ;
+   LuaCheckParam( L, 1, nId)
+   int nDestGrpId ;
+   LuaCheckParam( L, 2, nDestGrpId)
+   double dRad ;
+   LuaCheckParam( L, 3, dRad)
+   bool bSquareEnds ;
+   LuaCheckParam( L, 4, bSquareEnds)
+   bool bSquareMids = bSquareEnds ;
+   LuaGetParam( L, 5, bSquareMids) ;
+
+   LuaClearStack( L) ;
+   int nCount = 0 ;
+   int nNewId = ExeCurveGetFatCurve( nId, nDestGrpId, dRad, bSquareEnds, bSquareMids, &nCount) ;
+   if ( nNewId != GDB_ID_NULL)
+      LuaSetParam( L, nNewId) ;
+   else
+      LuaSetParam( L) ;
+
+   LuaSetParam( L, nCount) ;
+   return 2 ;
+}
+
 //-------------------------------------------------------------------------------
 bool
 LuaInstallGdbGetCurve( LuaMgr& luaMgr)
@@ -562,5 +615,7 @@ LuaInstallGdbGetCurve( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveCompoRadius", LuaCurveCompoRadius) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveCompoAngCenter", LuaCurveCompoAngCenter) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtCurveCompoNormVersor", LuaCurveCompoNormVersor) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtCurveGetVoronoi", LuaCurveGetVoronoi) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtCurveGetFatCurve", LuaCurveGetFatCurve) ;
    return bOk ;
 }