diff --git a/EGkTriangle3d.h b/EGkTriangle3d.h
index fe4de26..c1b8f81 100644
--- a/EGkTriangle3d.h
+++ b/EGkTriangle3d.h
@@ -49,7 +49,7 @@ class Triangle3d
               { if ( AreSamePointApprox( m_ptP[0], m_ptP[1])  ||  AreSamePointApprox( m_ptP[0], m_ptP[2]))
                    return false ;
                 Vector3d vtV = ( m_ptP[1] - m_ptP[0]) ^ ( m_ptP[2] - m_ptP[0]) ;
-                vtV.Normalize() ;
+                vtV.Normalize( EPS_ZERO) ;
                 if ( m_vtN.IsZero()  ||  bOverwrite) {
                    m_vtN = vtV ;
                    return true ;
@@ -60,7 +60,7 @@ class Triangle3d
               { if ( AreSamePointApprox( m_ptP[0], m_ptP[1])  ||  AreSamePointApprox( m_ptP[0], m_ptP[2]))
                    return false ;
                 Vector3d vtV = ( m_ptP[1] - m_ptP[0]) ^ ( m_ptP[2] - m_ptP[0]) ;
-                vtV.Normalize() ;
+                vtV.Normalize( EPS_ZERO) ;
                 return AreSameVectorApprox( vtV, m_vtN) ;
               }
       void Translate( const Vector3d& vtMove)
@@ -406,5 +406,5 @@ CalcNormal( const Point3d& ptP, const Triangle3d& Tria, const TriNormals3d& Tnor
   // calcolo la media
    vtNorm = dU * Tnorms.vtN[0] + dV * Tnorms.vtN[1] + dW * Tnorms.vtN[2] ;
   // la normalizzo
-   return vtNorm.Normalize() ;
+   return vtNorm.Normalize( EPS_ZERO) ;
 }
diff --git a/EXeExecutor.h b/EXeExecutor.h
index deac156..6d78e5f 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -481,6 +481,7 @@ EXE_EXPORT bool ExeRemoveVolZmapPart( int nId, int nPart) ;
 EXE_EXPORT bool ExeVolZmapSetStdTool( int nId, const std::string& sToolName, double dLen, double dDiam, double dCornR, int nFlag) ;
 EXE_EXPORT bool ExeVolZmapSetAdvTool( int nId, const std::string& sToolName,
                                       double dLen, double dDiam, double dTipLen, double dTipDiam, double dCornR, int nFlag) ;
+EXE_EXPORT bool ExeVolZmapSetGenTool( int nId, const std::string& sToolName, int nToolSectId, int nFlag) ;
 EXE_EXPORT bool ExeVolZmapSetMortiserTool( int nId, const std::string& sToolName,
                                            double dLen, double dWidth, double dThick, double dCornR, int nFlag) ;
 EXE_EXPORT bool ExeVolZmapSetChiselTool( int nId, const std::string& sToolName,