diff --git a/EGkStmFromCurves.h b/EGkStmFromCurves.h
index d5520be..9ebd28e 100644
--- a/EGkStmFromCurves.h
+++ b/EGkStmFromCurves.h
@@ -35,5 +35,6 @@ EGK_EXPORT ISurfTriMesh* GetSurfTriMeshByRevolve( const ICurve* pCurve, const Po
                                                   const Vector3d& vtAx, bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
 EGK_EXPORT ISurfTriMesh* GetSurfTriMeshByScrewing( const ICurve* pCurve, const Point3d& ptAx, const Vector3d& vtAx,
                                                    double dAngRotDeg, double dMove, double dLinTol = 10 * EPS_SMALL) ;
-EGK_EXPORT ISurfTriMesh* GetSurfTriMeshRuled( const Point3d& ptP, const ICurve* pCurve, double dLinTol) ;
+EGK_EXPORT ISurfTriMesh* GetSurfTriMeshSwept( const ICurve* pSect, const ICurve* pGuide, bool bCapEnds, double dLinTol = 10 * EPS_SMALL) ;
+EGK_EXPORT ISurfTriMesh* GetSurfTriMeshRuled( const Point3d& ptP, const ICurve* pCurve, double dLinTol = 10 * EPS_SMALL) ;
 EGK_EXPORT ISurfTriMesh* GetSurfTriMeshRuled( const ICurve* pCurve1, const ICurve* pCurve2, double dLinTol = 10 * EPS_SMALL) ;
diff --git a/EMkMachiningGeoConst.h b/EMkMachiningGeoConst.h
index 60ac956..ad5ae8d 100644
--- a/EMkMachiningGeoConst.h
+++ b/EMkMachiningGeoConst.h
@@ -20,6 +20,8 @@
 static std::string KEY_PHASE = "PH" ;
 // Chiave per elenco identificativi di selezione
 static std::string KEY_IDS = "IDS" ;
+// Chiave per flag cornice diritta
+static std::string KEY_STRAIGHT = "STR" ;
 // Chiave per conteggio elementi geometrici di lavorazione
 static std::string KEY_NUM = "NUM" ;
 // Chiave per stato di aggiornamento di lavorazione
diff --git a/EXeExecutor.h b/EXeExecutor.h
index c86b9d4..f7cc92b 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -271,6 +271,7 @@ EXE_EXPORT int  ExeCreateSurfTmByRevolve( int nParentId, int nCrvId,
 EXE_EXPORT int  ExeCreateSurfTmByScrewing( int nParentId, int nCrvId,
                                            const Point3d& ptAx, const Vector3d& vtAx,
                                            double dAngRotDeg, double dMove, double dLinTol, int nRefType) ;
+EXE_EXPORT int  ExeCreateSurfTmSwept( int nParentId, int nSectId, int nGuideId, bool bCapEnds, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfTmRuled( int nParentId, int nPtOrCrvId1, int nPtOrCrvId2, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfTmByTriangles( int nParentId, const INTVECTOR& vIds, bool bErase) ;
 EXE_EXPORT int  ExeCreateSurfTmBySewing( int nParentId, const INTVECTOR& vIds, bool bErase) ;