diff --git a/SceneGeom.cpp b/SceneGeom.cpp
index 7a4cace..112f6b0 100644
--- a/SceneGeom.cpp
+++ b/SceneGeom.cpp
@@ -624,7 +624,7 @@ Scene::DrawGeoObj( const IGdbIterator& iIter, int nPass, const MdStMkCol& siObj)
                pGraphics->AddBackMaterial( DGRAY) ;
                for ( const auto& pCrv : vpCurve) {
                   PolyLine PL ;
-                  if ( pCrv->ApproxWithLines(10 * EPS_SMALL, ANG_TOL_GRAPH_DEG, ICurve::APL_SPECIAL, PL))
+                  if ( pCrv->ApproxWithLines( 10 * EPS_SMALL, ANG_TOL_GRAPH_DEG, ICurve::APL_SPECIAL, PL))
                      pGraphics->AddPolyLine( PL, false, true) ;
                }
             }
diff --git a/SceneSnap.cpp b/SceneSnap.cpp
index 9728c3a..37cfbcb 100644
--- a/SceneSnap.cpp
+++ b/SceneSnap.cpp
@@ -671,10 +671,10 @@ Scene::FindSurfTMSnapPoint( int nSnap, const Point3d& ptWin, int nId, const Fram
    if ( ! IntersLineSurfTm( ptMir, vtDir, dLenMir, *pStm, vInfo))
       return false ;
   // se non trovato alcunchè, cerco le linee che partono dagli angoli e dai punti medi dei lati del rettangolo di mira
-      VCT3DVECTOR vVtWind = { {0.51, 0.51, 0}, {0, 0.51, 0}, {-0.51, 0.51, 0}, {-0.51, 0, 0},
-                              {-0.51, -0.51, 0}, {0, -0.51, 0}, {0.51, -0.51, 0}, {0.51, 0, 0},
-                              {0.25, 0.51, 0}, {-0.25, 0.51, 0}, {-0.51, 0.25, 0}, {-0.51, -0.25, 0},
-                              {-0.25, -0.51, 0}, {0.25, -0.51, 0}, {0.51, -0.25, 0}, {0.51, 0.25, 0}} ;
+   VCT3DVECTOR vVtWind = { {0.51, 0.51, 0}, {0, 0.51, 0}, {-0.51, 0.51, 0}, {-0.51, 0, 0},
+                           {-0.51, -0.51, 0}, {0, -0.51, 0}, {0.51, -0.51, 0}, {0.51, 0, 0},
+                           {0.25, 0.51, 0}, {-0.25, 0.51, 0}, {-0.51, 0.25, 0}, {-0.51, -0.25, 0},
+                           {-0.25, -0.51, 0}, {0.25, -0.51, 0}, {0.51, -0.25, 0}, {0.51, 0.25, 0}} ;
    for ( int i = 0 ; i < int( vVtWind.size()) && vInfo.empty() ; ++ i) {
      // determino punto su vertice del rettangolo di selezione
       Point3d ptWinZ2 = ptWinZ + vVtWind[i].x * m_nSelH * X_AX + vVtWind[i].y * m_nSelW * Y_AX ;