diff --git a/PolyLine.cpp b/PolyLine.cpp
index a88a2e1..303d978 100644
--- a/PolyLine.cpp
+++ b/PolyLine.cpp
@@ -1609,8 +1609,6 @@ SplitPolyLineAtPoint( const PolyLine& plPoly, const Point3d& ptP, double dToler,
 bool 
 AssociatePolyLinesMinDistPoints( const PolyLine& PL1, const PolyLine& PL2, PNTIVECTOR& vPnt1, PNTIVECTOR& vPnt2, bool& bCommonInternalPoints)
 {
-   const double CORNER_COS = 0.96 ;
-
   // controllo che le polyline abbiano almeno un punto 
    int nPnt1 = PL1.GetPointNbr() ;
    int nPnt2 = PL2.GetPointNbr() ;
@@ -1637,36 +1635,6 @@ AssociatePolyLinesMinDistPoints( const PolyLine& PL1, const PolyLine& PL2, PNTIV
    }
    int nTotP2 = int( vPnt2.size()) ;
 
-  // individuo gli spigoli
-   BOOLVECTOR vSharpCorner1( nTotP1, false), vSharpCorner2( nTotP2, false) ;
-   for ( int i = 0 ; i < nTotP1 - 1 ; i ++) {
-     // se estremo di curva aperta non è spigolo
-      if ( i == 0  &&  ! PL1.IsClosed())
-         continue ;
-     // recupero direzioni precedente e successiva
-      int nPrevI = ( i == 0 ? nTotP1 - 2 : i - 1) ;
-      int nNextI = i + 1 ;     
-      Vector3d vtPrev = vPnt1[i].first - vPnt1[nPrevI].first ;
-      vtPrev.Normalize() ;
-      Vector3d vtNext = vPnt1[nNextI].first - vPnt1[i].first ;
-      vtNext.Normalize() ;
-      vSharpCorner1[i] = ( vtPrev * vtNext < CORNER_COS) ;
-   }
-   vSharpCorner1.back() = vSharpCorner1.front() ;
-
-   for ( int i = 0 ; i < nTotP2 - 1 ; i ++) {
-      if ( i == 0  &&  ! PL2.IsClosed())
-         continue ;
-      int nPrevI = ( i == 0 ? nTotP2 - 2 : i - 1) ;
-      int nNextI = i + 1 ;     
-      Vector3d vtPrev = vPnt2[i].first - vPnt2[nPrevI].first ;
-      vtPrev.Normalize() ;
-      Vector3d vtNext = vPnt2[nNextI].first - vPnt2[i].first ;
-      vtNext.Normalize() ;
-      vSharpCorner2[i] = ( vtPrev * vtNext < CORNER_COS) ;
-   }
-   vSharpCorner2.back() = vSharpCorner2.front() ;
-
   // calcoli per prima curva
    int nLastJ = 0 ;
    vPnt1[0].second = 0 ;
@@ -1698,28 +1666,6 @@ AssociatePolyLinesMinDistPoints( const PolyLine& PL1, const PolyLine& PL2, PNTIV
       nLastJ = nMinJ ;
    }
 
-  // correzione per associare spigoli : se spigolo non associato ad altro spigolo, verifico se esiste un possibile 
-  // spigolo da associare 
-   for ( int i = 0 ; i < nTotP1 ; i ++) {
-      if ( vSharpCorner1[i]  &&  ! vSharpCorner2[vPnt1[i].second]) {
-        // individuo i limiti per la ricerca dello spigolo
-         int nPrevI = ( i == 0 ? 0 : i - 1) ;
-         int nNextI = ( i == nTotP1 - 1 ? i : i + 1) ;
-         int nPrevJ = vPnt1[nPrevI].second ;
-         int nNextJ = vPnt1[nNextI].second ;
-         int nStart = ( vSharpCorner2[nPrevJ] ? nPrevJ + 1 : nPrevJ) ;
-         int nEnd = ( vSharpCorner2[nNextJ] ? nNextJ - 1 : nNextJ) ;
-         double dMinDist = INFINITO ;
-         int nCorner = vPnt1[i].second ;
-        // cerco lo spigolo più vicino nel range fissato
-         for ( int j = nStart ; j <= nEnd ; j ++) {
-            if ( vSharpCorner2[j]  &&  Dist( vPnt1[i].first, vPnt2[j].first) < dMinDist)
-              nCorner = j ;
-         }
-         vPnt1[i].second = nCorner ;
-      }  
-   }
-
   // calcoli per seconda curva
    int nLastI = 0 ;
    vPnt2[0].second = 0 ;
@@ -1749,26 +1695,6 @@ AssociatePolyLinesMinDistPoints( const PolyLine& PL1, const PolyLine& PL2, PNTIV
       vPnt2[j].second = nMinI ;
       nLastI = nMinI ;
    }
-
-  // correzione per associare spigoli
-   for ( int i = 0 ; i < nTotP2 ; i ++) {
-      if ( vSharpCorner2[i]  &&  ! vSharpCorner1[vPnt2[i].second]) {
-         int nPrevI = ( i == 0 ? 0 : i - 1) ;
-         int nNextI = ( i == nTotP2 - 1 ? i : i + 1) ;
-         int nPrevJ = vPnt2[nPrevI].second ;
-         int nNextJ = vPnt2[nNextI].second ;
-         int nStart = ( vSharpCorner1[nPrevJ] ? nPrevJ + 1 : nPrevJ) ;
-         int nEnd = ( vSharpCorner1[nNextJ] ? nNextJ - 1 : nNextJ) ;
-         double dMinDist = INFINITO ;
-         int nCorner = vPnt2[i].second ;
-         for ( int j = nStart ; j <= nEnd ; j ++) {
-            if ( vSharpCorner1[j]  &&  Dist( vPnt2[i].first, vPnt1[j].first) < dMinDist)
-               nCorner = j ;
-         }
-         vPnt2[i].second = nCorner ;
-      }  
-   }
-
    return true ;
 }