diff --git a/IntersCurveCurve.cpp b/IntersCurveCurve.cpp
index 1f9d472..7c05360 100644
--- a/IntersCurveCurve.cpp
+++ b/IntersCurveCurve.cpp
@@ -659,11 +659,8 @@ IntersCurveCurve::CalcCurveInOrOut( const ICurve* pCurveA, const ICurve* pCurveB
 bool
 IntersCurveCurve::GetCurveOutClass( const ICurve* pCurve, int& nClass)
 {
-   PolyLine PL ;
-   if ( ! pCurve->ApproxWithLines( LIN_TOL_APPROX, ANG_TOL_APPROX_DEG, ICurve::APL_SPECIAL, PL))
-      return false ;
    double dArea ;
-   if ( ! PL.GetAreaXY( dArea))
+   if ( ! pCurve->GetAreaXY( dArea))
       return false ;
    nClass = (( dArea > 0) ? CRVC_OUT : CRVC_IN) ;
    return true ;
diff --git a/IntersLineLine.cpp b/IntersLineLine.cpp
index d536654..dae77ba 100644
--- a/IntersLineLine.cpp
+++ b/IntersLineLine.cpp
@@ -66,7 +66,7 @@ IntersLineLine::IntersInfiniteLines( const ICurveLine& Line1, const ICurveLine&
    double dLen1XY = vtDir1.LenXY() ;
    if ( dLen1XY < EPS_SMALL)
       return ;
-  // linea 2 : Start, Direzione e Lunghezza
+  // linea 2 : Start, End, Direzione e Lunghezza
    Point3d ptS2 = Line2.GetStart() ;
    Point3d ptE2 = Line2.GetEnd() ;
    Vector3d vtDir2 = ptE2 - ptS2 ;