diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index dee72de..f23ca22 100644
Binary files a/EgtGraphics.rc and b/EgtGraphics.rc differ
diff --git a/SceneGeom.cpp b/SceneGeom.cpp
index b5aeb12..f5df0ba 100644
--- a/SceneGeom.cpp
+++ b/SceneGeom.cpp
@@ -972,18 +972,18 @@ static bool
 CalcCurveConnectingLines( const PolyLine& plCrv, const Vector3d& vtTh, bool bDense, PNTVECTOR& vPnt)
 {
   // assegno coefficiente
-   double dDelta = ( bDense ? 0.25 : 1) ;
+   double dDelta = ( bDense ? 0.25 : 0.5) ;
   // ciclo per creare i segmenti di raccordo
    double dU, dUprev = - dDelta ;
    vPnt.reserve( 5) ;
    for ( bool bFound = plCrv.GetFirstU( dU) ; bFound ; bFound = plCrv.GetNextU( dU)) {
-      if ( ( dU - dUprev) > dDelta - EPS_PARAM) {
+      if ( ( dU - dUprev) > dDelta - EPS_PARAM  ||  fmod( dU, 1.) < EPS_PARAM) {
          Point3d ptP ;
          plCrv.GetCurrPoint( ptP) ;
          vPnt.push_back( ptP) ;
          ptP += vtTh ;
          vPnt.push_back( ptP) ;
-         dUprev += dDelta ;
+         dUprev = dU ;
       }
    }
    return true ;