0023746: IGES wheel model fails to load when OCCT unit is meters

[occt.git] / src / GeomToIGES / GeomToIGES_GeomCurve.cxx

diff --git a/src/GeomToIGES/GeomToIGES_GeomCurve.cxx b/src/GeomToIGES/GeomToIGES_GeomCurve.cxx
index 2697ce8..99187c1 100755 (executable)
--- a/src/GeomToIGES/GeomToIGES_GeomCurve.cxx
+++ b/src/GeomToIGES/GeomToIGES_GeomCurve.cxx
@@ -324,7 +324,8 @@ Handle(IGESData_IGESEntity) GeomToIGES_GeomCurve::TransferCurve
       OCC_CATCH_SIGNALS
       Handle(Geom_BSplineCurve) bspl = Handle(Geom_BSplineCurve)::DownCast ( mycurve->Copy() ); 
       if ( ! bspl.IsNull() ) {
-       bspl->Segment ( Umin, Umax );
+        if (Abs(Umax-Umin) > Precision::PConfusion())
+          bspl->Segment ( Umin, Umax );
        mycurve = bspl;
       }
     }