diff --git a/EXE_GeoInters.cpp b/EXE_GeoInters.cpp
index 822a7eb..82903ca 100644
--- a/EXE_GeoInters.cpp
+++ b/EXE_GeoInters.cpp
@@ -1005,6 +1005,92 @@ ExePlaneCurveInters( const Point3d& ptOn, const Vector3d& vtN, const int nId, co
    return nFirstId ;
 }
 
+//-------------------------------------------------------------------------------
+int 
+MyCurveCurveInters( const int nId1, const int nId2, const int nDestGrpId, int& nCount)
+{
+   IGeomDB* pGeomDB = GetCurrGeomDB() ;
+   VERIFY_GEOMDB( pGeomDB, GDB_ID_NULL)
+
+   int nFirstId = GDB_ID_NULL ;
+
+  // recupero il riferimento del gruppo di destinazione
+   Frame3d frDest ;
+   if ( ! pGeomDB->GetGroupGlobFrame( nDestGrpId, frDest))
+      return GDB_ID_NULL ;
+
+  // recupero le curve e le porto nel riferimento del gruppo di destinazione
+   PtrOwner<ICurve> pCrv1( GetCurve( pGeomDB->GetGeoObj( nId1))->Clone()) ;
+   if ( IsNull( pCrv1))
+      return GDB_ID_NULL ;
+   Frame3d frCrv1 ;
+   if ( ! pGeomDB->GetGlobFrame( nId1, frCrv1))
+      return GDB_ID_NULL ;
+   pCrv1->LocToLoc( frCrv1, frDest) ;
+
+   PtrOwner<ICurve> pCrv2( GetCurve( pGeomDB->GetGeoObj( nId2))->Clone()) ;
+   if ( IsNull( pCrv2))
+      return GDB_ID_NULL ;
+   Frame3d frCrv2 ;
+   if ( ! pGeomDB->GetGlobFrame( nId2, frCrv2))
+      return GDB_ID_NULL ;
+   pCrv2->LocToLoc( frCrv2, frDest) ;
+
+  // intersezione fra le curve nel piano XY locale
+   IntersCurveCurve intCC( *pCrv1, *pCrv2, true) ;
+   int nInters = intCC.GetIntersCount() ;
+  // recupero i risultati
+   for ( int i = 0 ; i < nInters ; i++) {
+   
+      int nNewId = GDB_ID_NULL ;
+      IntCrvCrvInfo aInfo ;     
+      intCC.GetIntCrvCrvInfo( i, aInfo) ;
+      if ( aInfo.bOverlap) {
+        // è un tratto di curva
+         PtrOwner<ICurve> pCrvRes( pCrv1->CopyParamRange( aInfo.IciA[0].dU, aInfo.IciA[1].dU)) ;
+         if ( IsNull( pCrvRes))
+            return GDB_ID_NULL ;
+        // lo inserisco nel DB geometrico
+         nNewId = pGeomDB->AddGeoObj( GDB_ID_NULL, nDestGrpId, Release( pCrvRes)) ;     
+      }
+      else {      
+        // è un punto
+         PtrOwner<IGeoPoint3d> pGeoPnt( CreateGeoPoint3d()) ;
+         if ( IsNull( pGeoPnt))
+            return GDB_ID_NULL ;
+         pGeoPnt->Set( aInfo.IciA[0].ptI) ;
+        // lo inserisco nel DB geometrico
+         nNewId = pGeomDB->AddGeoObj( GDB_ID_NULL, nDestGrpId, Release( pGeoPnt)) ;       
+      }
+
+      if ( nNewId == GDB_ID_NULL)
+         return GDB_ID_NULL ;
+      if ( nFirstId == GDB_ID_NULL)
+         nFirstId = nNewId ;
+      ++ nCount ;
+   }
+
+   return nFirstId ;
+}
+
+//-------------------------------------------------------------------------------
+int
+ExeCurveCurveInters( const int nId1, const int nId2, const int nDestGrpId, int* pnCount)
+{
+  // eseguo
+   int nCount{ 0 } ;
+   int nFirstId = MyCurveCurveInters( nId1, nId2, nDestGrpId, nCount) ;
+  // aggiorno contatori
+   if ( nFirstId != GDB_ID_NULL) {
+      if ( pnCount != nullptr)
+         *pnCount = nCount ;
+      ExeSetModified() ;
+   }
+
+  // restituisco l'identificativo della prima nuova entità
+   return nFirstId ;
+}
+
 //-------------------------------------------------------------------------------
 static bool
 MyLineVolZmapInters( const Point3d& ptP, const Vector3d& vtDir, int nId, int nRefType, INTDBLVECTOR& vInters)
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index ec04b43..4ba1e12 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_GeoInters.cpp b/LUA_GeoInters.cpp
index 46a6e5b..30dbdef 100644
--- a/LUA_GeoInters.cpp
+++ b/LUA_GeoInters.cpp
@@ -244,6 +244,30 @@ LuaPlaneCurveInters( lua_State* L)
    return 2 ;
 }
 
+//----------------------------------------------------------------------------
+static int
+LuaCurveCurveInters( lua_State* L)
+{
+  // 3 parametri : nId1, nId2, nDestGrpId
+   int nId1 ;
+   LuaCheckParam( L, 1, nId1)
+   int nId2 ;
+   LuaCheckParam( L, 2, nId2)
+   int nDestGrpId ;
+   LuaCheckParam( L, 3, nDestGrpId) ;   
+   LuaClearStack( L) ;
+  // eseguo l'intersezione
+   int nCount = 0 ;
+   int nNewId = ExeCurveCurveInters( nId1, nId2, nDestGrpId, &nCount) ;
+   // restituisco il risultato
+   if ( nNewId != GDB_ID_NULL)
+      LuaSetParam( L, nNewId) ;
+   else
+      LuaSetParam( L) ;
+   LuaSetParam( L, nCount) ;
+   return 2 ;
+}
+
 //----------------------------------------------------------------------------
 static int
 LuaLineVolZmapInters( lua_State* L)
@@ -322,6 +346,7 @@ LuaInstallGeoInters( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtParPlanesSurfTmInters", LuaParPlanesSurfTmInters) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtSurfTmSurfTmInters", LuaSurfTmSurfTmInters) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtPlaneCurveInters", LuaPlaneCurveInters) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtCurveCurveInters", LuaCurveCurveInters) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtLineVolZmapInters", LuaLineVolZmapInters) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtPlaneVolZmapInters", LuaPlaneVolZmapInters) ;
    return bOk ;