diff --git a/EgtGeomKernel.rc b/EgtGeomKernel.rc
index 245321f..5ff8fcb 100644
Binary files a/EgtGeomKernel.rc and b/EgtGeomKernel.rc differ
diff --git a/IntersCrvCompoCrvCompo.cpp b/IntersCrvCompoCrvCompo.cpp
index cbabd21..2a1f6aa 100644
--- a/IntersCrvCompoCrvCompo.cpp
+++ b/IntersCrvCompoCrvCompo.cpp
@@ -371,12 +371,16 @@ IntersCrvCompoCrvCompo::IntersCrvCompoCrvCompo( const ICurveComposite& CCompoA,
         // caso NULL-NULL per corrente di prima curva
          else if ( m_Info[i].IciA[ki].nPrevTy == ICCT_NULL  &&  m_Info[i].IciA[ki].nNextTy == ICCT_NULL) {
             m_Info[j].IciA[kj].nNextTy = m_Info[i].IciA[ki].nNextTy ;
+            if ( m_Info[i].IciB[ki].dU > m_Info[j].IciB[kj].dU + EPS_PARAM)
+               m_Info[j].IciB[kj].nNextTy = m_Info[i].IciB[ki].nNextTy ;
            // cancello l'intersezione corrente (non aggiunge nulla rispetto alla precedente)
             EraseCurrentInfo( i, j) ;
          }
         // caso NULL-NULL per precedente di prima curva
          else if ( m_Info[j].IciA[kj].nPrevTy == ICCT_NULL  &&  m_Info[j].IciA[kj].nNextTy == ICCT_NULL) {
-            m_Info[i].IciA[0].nPrevTy = m_Info[j].IciA[0].nPrevTy ;
+            m_Info[i].IciA[ki].nPrevTy = m_Info[j].IciA[kj].nPrevTy ;
+            if ( m_Info[j].IciB[kj].dU < m_Info[i].IciB[ki].dU - EPS_PARAM)
+               m_Info[i].IciB[ki].nPrevTy = m_Info[j].IciB[kj].nPrevTy ;
            // cancello l'intersezione precedente (non aggiunge nulla rispetto alla corrente)
             EraseOtherInfo( i, j) ;
          }
diff --git a/IntersLineLine.cpp b/IntersLineLine.cpp
index 12e0ce7..9d06ec4 100644
--- a/IntersLineLine.cpp
+++ b/IntersLineLine.cpp
@@ -180,10 +180,10 @@ IntersLineLine::IntersFiniteLines( const CurveLine& Line1, const CurveLine& Line
    }
    // estremità sovrapposte di poco
    if ( ! bParallel  &&  abs( dCrossXY) < ( 0.1 * DEGTORAD) * ( dLen1XY * dLen2XY)) {
-      if (( nS1Side == 0  &&  nS2Side == 0  &&  ! AreSamePointXYEpsilon( ptS1, ptS2, 2 * EPS_SMALL))  ||
-          ( nS1Side == 0  &&  nE2Side == 0  &&  ! AreSamePointXYEpsilon( ptS1, ptE2, 2 * EPS_SMALL))  ||
-          ( nE1Side == 0  &&  nS2Side == 0  &&  ! AreSamePointXYEpsilon( ptE1, ptS2, 2 * EPS_SMALL))  ||
-          ( nE1Side == 0  &&  nE2Side == 0  &&  ! AreSamePointXYEpsilon( ptE1, ptE2, 2 * EPS_SMALL))) {
+      if (( nS1Side == 0  &&  nS2Side == 0  &&  ScalarXY( vtDir1, vtDir2) < 0  &&  ! AreSamePointXYEpsilon( ptS1, ptS2, 2 * EPS_SMALL))  ||
+          ( nS1Side == 0  &&  nE2Side == 0  &&  ScalarXY( vtDir1, vtDir2) > 0  &&  ! AreSamePointXYEpsilon( ptS1, ptE2, 2 * EPS_SMALL))  ||
+          ( nE1Side == 0  &&  nS2Side == 0  &&  ScalarXY( vtDir1, vtDir2) > 0  &&  ! AreSamePointXYEpsilon( ptE1, ptS2, 2 * EPS_SMALL))  ||
+          ( nE1Side == 0  &&  nE2Side == 0  &&  ScalarXY( vtDir1, vtDir2) < 0  &&  ! AreSamePointXYEpsilon( ptE1, ptE2, 2 * EPS_SMALL))) {
          bParallel = true ;
          bFarEnds = false ;
       }