diff --git a/EGkCurveComposite.h b/EGkCurveComposite.h
index 7b3eab2..ccc3c49 100644
--- a/EGkCurveComposite.h
+++ b/EGkCurveComposite.h
@@ -1,13 +1,13 @@
 //----------------------------------------------------------------------------
 //  EgalTech 2013-2021
 //----------------------------------------------------------------------------
-// File : EgkCurveComposite.h      Data : 03.04.21        Versione : 2.3d1
+// File : EgkCurveComposite.h      Data : 03.04.21        Versione : 2.3g2
 // Contenuto : Dichiarazione della interfaccia ICurveComposite.
 //
 //
 //
 // Modifiche : 22.11.13 DS Creazione modulo.
-//
+//             21.07.21 LM Aggiunto parametro opzionale a Set/GetCurveTempProp.
 //
 //----------------------------------------------------------------------------
 
@@ -58,8 +58,8 @@ class __declspec( novtable) ICurveComposite : public ICurve
       virtual bool IsAPoint( void) const = 0 ;
       virtual bool IsALine( double dLinTol, Point3d& ptStart, Point3d& ptEnd) const = 0 ;
       virtual bool IsACircle( double dLinTol, Point3d& ptCen, Vector3d& vtN, double& dRad, bool& bCCW) const = 0 ;
-      virtual bool SetCurveTempProp( int nCrv, int nProp) = 0 ;
-      virtual bool GetCurveTempProp( int nCrv, int& nProp) const = 0 ;
+      virtual bool SetCurveTempProp( int nCrv, int nProp, int nPropInd = 0) = 0 ;
+      virtual bool GetCurveTempProp( int nCrv, int& nProp, int nPropInd = 0) const = 0 ;
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EGkGdbConst.h b/EGkGdbConst.h
index 8ccab1d..8a53360 100644
--- a/EGkGdbConst.h
+++ b/EGkGdbConst.h
@@ -60,6 +60,9 @@ enum GdbStatus { GDB_ST_OFF = 0,
 enum GdbMark { GDB_MK_OFF = 0,
                GDB_MK_ON =  1} ;
 
+//----------------- Costante per numero proprietà temporanee -------------------
+const int GDB_NUM_TEMP_PROP = 2 ;
+
 //----------------- Costanti materiale oggetti del DB geometrico ---------------
 enum GdbMaterial { GDB_MT_COLOR = -1,
                    GDB_MT_PARENT = 0} ;
diff --git a/EGkGeoObj.h b/EGkGeoObj.h
index 716af3a..466dda6 100644
--- a/EGkGeoObj.h
+++ b/EGkGeoObj.h
@@ -1,13 +1,14 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2013-2014
+//  EgalTech 2013-2021
 //----------------------------------------------------------------------------
-// File : EGkGeoObj.h           Data : 14.04.14          Versione : 1.5d5
+// File : EGkGeoObj.h           Data : 21.07.21          Versione : 2.3g2
 // Contenuto : Dichiarazione della interfaccia IGeoObj.
 //
 //
 //
 // Modifiche : 20.11.13 DS Creazione modulo.
 //             14.04.14 DS Tolti metodi GetKey, Save e Load.
+//             21.07.21 LM Aggiunto parametro opzionale a Set/GetTempProp.
 //
 //----------------------------------------------------------------------------
 
@@ -53,8 +54,8 @@ class __declspec( novtable) IGeoObj
       virtual void SetObjGraphics( IObjGraphics* pOGr) = 0 ;
       virtual IObjGraphics* GetObjGraphics( void) = 0 ;
       virtual const IObjGraphics* GetObjGraphics( void) const = 0 ;
-      virtual void SetTempProp( int nProp) = 0 ;
-      virtual int  GetTempProp( void) const = 0 ;
+      virtual void SetTempProp( int nProp, int nPropInd = 0) = 0 ;
+      virtual int  GetTempProp( int nPropInd = 0) const = 0 ;
 } ;
 
 //-----------------------------------------------------------------------------
diff --git a/EGkPolyLine.h b/EGkPolyLine.h
index 5dc7b02..72a2afb 100644
--- a/EGkPolyLine.h
+++ b/EGkPolyLine.h
@@ -132,30 +132,3 @@ class PolyLine
 // Raccolte di PolyLine
 typedef std::vector<PolyLine>  POLYLINEVECTOR ;   // vettore di PolyLine
 typedef std::list<PolyLine>    POLYLINELIST ;     // lista di PolyLine
-
-//----------------------------------------------------------------------------
-/*static*/ bool
-ChangePolyLineStart( const Point3d& ptNewStart, PolyLine& Loop, double dTol = EPS_SMALL) ;
-// nSegNum 0-based
-/*static*/ bool
-PointPositionOnPolyLine( const Point3d& ptPoint, /*const*/ PolyLine& Loop, int& nSegNum, double& dParOnSeg, double dTol = EPS_SMALL) ;
-/*static*/ bool
-IsPointInsidePolyLine( const Point3d& ptP, const PolyLine& plPoly) ;
-/*static*/ bool
-DistPointPolyLine( const Point3d& ptP, const PolyLine& plPoly, double& dPointPolyLineDist) ;
-/*static*/ bool
-SplitPolyLineAtPoint( const Point3d& ptPoint, /*const*/ PolyLine& Loop, PolyLine& Loop1, PolyLine& Loop2, double dTol = EPS_SMALL) ;
-/*static*/ bool
-AddPolyLineToPolyLine( PolyLine& Poly, PolyLine& PolyToAdd, double dTol = EPS_SMALL) ;
-
-//----------------------------------------------------------------------------
-struct PositionOnPolyLine {
-   int nIndexInVec ;
-   int nSegNum ;
-   double dParOnSeg ;
-   PositionOnPolyLine( int nIndex, int nSeg, double dPar) {
-      nIndexInVec = nIndex ;
-      nSegNum = nSeg ;
-      dParOnSeg = dPar ;
-   }
-} ;
diff --git a/EgtKeyCodes.h b/EgtKeyCodes.h
index d43e6dd..477644e 100644
--- a/EgtKeyCodes.h
+++ b/EgtKeyCodes.h
@@ -21,7 +21,7 @@
 
 //----------------------------------------------------------------------------
 const int KEY_BASELIB_PROD = 207 ;
-const int KEY_BASELIB_VER = 2306 ;
+const int KEY_BASELIB_VER = 2307 ;
 const int KEY_BASELIB_LEV = 1 ;
 
 //----------------------------------------------------------------------------