diff --git a/EGrScene.h b/EGrScene.h
index 41316af..37a7ebb 100644
--- a/EGrScene.h
+++ b/EGrScene.h
@@ -75,6 +75,8 @@ class IEGrScene
       virtual bool GetShowCurveDirection( void) = 0 ;
       virtual void SetShowTriaAdvanced( bool bAdvanced)= 0 ;
       virtual bool GetShowTriaAdvanced( void) = 0 ;
+      virtual void SetShowZmap( int nMode) = 0 ;
+      virtual int  GetShowZmap( void) = 0 ;
      // Geometry
       virtual bool SetExtension( const BBox3d& b3Ext) = 0 ;
       virtual bool UpdateExtension( void) = 0 ;
@@ -169,3 +171,7 @@ enum SnapPoint { SP_NONE = 0,
 enum TxrRepeat { TXR_CLAMP = 0,
                  TXR_REPEAT = 1,
                  TXR_MIRROR = 2} ;
+//------------------------ Costanti per tipo visualizz. Zmap -----------------
+enum ZmapShowMode { ZSM_SURF = 1,
+                    ZSM_LINES = 2,
+                    ZSM_BOTH = 3} ;
diff --git a/EInAPI.h b/EInAPI.h
index 6fd0606..80b3188 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -688,6 +688,8 @@ EIN_EXPORT BOOL __stdcall EgtSetShowCurveDirection( BOOL bShow, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtGetShowCurveDirection( void) ;
 EIN_EXPORT BOOL __stdcall EgtSetShowTriaAdv( BOOL bAdvanced, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtGetShowTriaAdv( void) ;
+EIN_EXPORT BOOL __stdcall EgtSetShowZmap( int nMode, BOOL bRedraw) ;
+EIN_EXPORT int  __stdcall EgtGetShowZmap( void) ;
 EIN_EXPORT BOOL __stdcall EgtZoom( int nZoom, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtZoomOnPoint( int nWinX, int nWinY, double dCoeff, BOOL bRedraw) ;
 EIN_EXPORT BOOL __stdcall EgtSetGeoLine( const double ptP1[3], const double ptP2[3], BOOL bRedraw) ;
diff --git a/EMkMachiningGeoConst.h b/EMkMachiningGeoConst.h
index 85260f5..e61b461 100644
--- a/EMkMachiningGeoConst.h
+++ b/EMkMachiningGeoConst.h
@@ -55,3 +55,7 @@ static std::string MCH_PV_KEY_RELOCATE = "PvId" ;
 // Chiave info per angoli in XY con entità successiva e precedente
 static std::string MCH_PV_KEY_NEXTANG = "NextAng" ;
 static std::string MCH_PV_KEY_PREVANG = "PrevAng" ;
+// Chiave info in gruppo CL per versore estrusione (normale al piano di interpolazione)
+static std::string KEY_EXTR = "EXTR" ;
+// Chiave info in gruppo CL per punto iniziale
+static std::string KEY_START = "START" ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 7f9d096..1a53b94 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -749,6 +749,8 @@ EXE_EXPORT bool ExeSetShowCurveDirection( bool bShow, bool bRedraw) ;
 EXE_EXPORT bool ExeGetShowCurveDirection( void) ;
 EXE_EXPORT bool ExeSetShowTriaAdv( bool bAdvanced, bool bRedraw) ;
 EXE_EXPORT bool ExeGetShowTriaAdv( void) ;
+EXE_EXPORT bool ExeSetShowZmap( int nMode, bool bRedraw) ;
+EXE_EXPORT int  ExeGetShowZmap( void) ;
 EXE_EXPORT bool ExeZoomRadius( double dRadius, bool bRedraw) ;
 EXE_EXPORT bool ExeZoom( int nZoom, bool bRedraw) ;
 EXE_EXPORT bool ExeZoomOnPoint( int nWinX, int nWinY, double dCoeff, bool bRedraw) ;