diff --git a/EXE_GdbGetCurve.cpp b/EXE_GdbGetCurve.cpp
index 19ede39..5e32ad8 100644
--- a/EXE_GdbGetCurve.cpp
+++ b/EXE_GdbGetCurve.cpp
@@ -372,7 +372,7 @@ ExeCurveWithRegionClassify( int nCurveId, int nRegionId)
    }
   // classifico la curva rispetto alla regione
    CRVCVECTOR vcClass ;
-   if ( ! pSfr->GetCurveClassification( *pCrvL, vcClass))
+   if ( ! pSfr->GetCurveClassification( *pCrvL, EPS_SMALL, vcClass))
       return CRC_NULL ;
    int nRes = CRC_NULL ;
    for ( auto& cClass : vcClass) {
diff --git a/EXE_GdbGetSurf.cpp b/EXE_GdbGetSurf.cpp
index a3f3d49..82fecf6 100644
--- a/EXE_GdbGetSurf.cpp
+++ b/EXE_GdbGetSurf.cpp
@@ -146,7 +146,7 @@ ExeSurfFrTestExternal( int nId1, int nId2, double dMinDist)
             return false ;
          IntersCurveCurve ccInt( *pCrv1, *pCrv2L) ;
          CRVCVECTOR vcClass ;
-         if ( ! ccInt.GetCurveClassification( 1, vcClass)  ||  vcClass.empty())
+         if ( ! ccInt.GetCurveClassification( 1, EPS_SMALL, vcClass)  ||  vcClass.empty())
             return false ;
          for ( auto& cClass : vcClass) {
             if ( cClass.nClass == CRVC_IN  ||  cClass.nClass == CRVC_NULL)
diff --git a/EXE_GdbModifyCurve.cpp b/EXE_GdbModifyCurve.cpp
index 028c41d..a0e3769 100644
--- a/EXE_GdbModifyCurve.cpp
+++ b/EXE_GdbModifyCurve.cpp
@@ -747,7 +747,7 @@ MyTrimCurveWithRegion( int nCrvId, int nRegId, bool bInVsOut, bool bOn, int& nCo
       return GDB_ID_NULL ;
   // calcolo la classificazione della curva rispetto alla regione
    CRVCVECTOR ccClass ;
-   if ( ! pSFR->GetCurveClassification( *CrvLoc, ccClass))
+   if ( ! pSFR->GetCurveClassification( *CrvLoc, EPS_SMALL, ccClass))
       return GDB_ID_NULL ;
   // determino gli intervalli di curva da conservare
    Intervals inOk( 100 * EPS_PARAM) ;
@@ -856,7 +856,7 @@ MyTrimFlatCurveWithBox( int nCrvId, const Frame3d& frBox, const Vector3d& vtDiag
       return false ;
   // calcolo la classificazione della curva rispetto alla regione
    CRVCVECTOR ccClass ;
-   if ( ! pSfr->GetCurveClassification( *pCrv, ccClass))
+   if ( ! pSfr->GetCurveClassification( *pCrv, EPS_SMALL, ccClass))
       return GDB_ID_NULL ;
   // determino gli intervalli di curva da conservare
    Intervals inOk ;
diff --git a/EXE_NstCreateFlatParts.cpp b/EXE_NstCreateFlatParts.cpp
index 314820f..2d25d6e 100644
--- a/EXE_NstCreateFlatParts.cpp
+++ b/EXE_NstCreateFlatParts.cpp
@@ -469,7 +469,7 @@ CreateFlatPartsByRegions( int nLay)
         // intersezione e classificazione
          CRVCVECTOR ccClass ;
          IntersCurveCurve intCC( *pCrv2, *pCrv) ;
-         if ( ! intCC.GetCurveClassification( 0, ccClass))
+         if ( ! intCC.GetCurveClassification( 0, EPS_SMALL, ccClass))
             continue ;
         // se completamente interna
          if ( ccClass.size() == 1  &&  ccClass[0].nClass == CRVC_IN) {
@@ -506,7 +506,7 @@ CreateFlatPartsByRegions( int nLay)
         // intersezione e classificazione
          CRVCVECTOR ccClass ;
          IntersCurveCurve intCC( *pCrv2, *pCrv) ;
-         if ( ! intCC.GetCurveClassification( 0, ccClass))
+         if ( ! intCC.GetCurveClassification( 0, EPS_SMALL, ccClass))
             continue ;
         // conservo solo le parti interne
          for ( int k = 0 ; k < int( ccClass.size()) ; ++ k) {
@@ -862,7 +862,7 @@ VerifyPrepareFlatParts( void)
          ICurve* pCrv = GetCurve( pGeomDB->GetGeoObj( vOpenIds[i])) ;
         // calcolo la classificazione della curva rispetto alla regione
          CRVCVECTOR ccClass ;
-         if ( ! pSfr->GetCurveClassification( *pCrv, ccClass))
+         if ( ! pSfr->GetCurveClassification( *pCrv, EPS_SMALL, ccClass))
             continue ;
         // conservo solo gli intervalli di curva interni
          Intervals inOk ;
diff --git a/EXE_NstPartNesting.cpp b/EXE_NstPartNesting.cpp
index dced2a4..665f527 100644
--- a/EXE_NstPartNesting.cpp
+++ b/EXE_NstPartNesting.cpp
@@ -649,7 +649,7 @@ TrimLine::TrimLineWithRegion( const ICurveLine* pLine, int nRegId, bool bOn, Int
       return false ;
   // calcolo la classificazione della curva rispetto alla regione
    CRVCVECTOR ccClass ;
-   if ( ! pSFR->GetCurveClassification( *pLocCrv, ccClass))
+   if ( ! pSFR->GetCurveClassification( *pLocCrv, EPS_SMALL, ccClass))
       return false ;
   // determino gli intervalli di curva esterni alla regione
    inOut.Reset() ;
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index 6a5c583..ffb61bf 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ