0022769: Optimization of sewing algorithm

[occt.git] / src / ChFi3d / ChFi3d_Builder_C1.cxx

diff --git a/src/ChFi3d/ChFi3d_Builder_C1.cxx b/src/ChFi3d/ChFi3d_Builder_C1.cxx
index 3ae4c9e..656b68b 100755 (executable)
--- a/src/ChFi3d/ChFi3d_Builder_C1.cxx
+++ b/src/ChFi3d/ChFi3d_Builder_C1.cxx
@@ -973,13 +973,21 @@ void ChFi3d_Builder::PerformOneCorner(const Standard_Integer Index,
        Geom2dAdaptor_Curve anOtherPCurve;
        if (IShape == aData->IndexOfS1())
        {
-         anOtherPCurve.Load (aData->InterferenceOnS1().PCurveOnFace(),
+    const Handle(Geom2d_Curve)& aPCurve = aData->InterferenceOnS1().PCurveOnFace();
+    if(aPCurve.IsNull())
+      continue;
+
+         anOtherPCurve.Load (aPCurve,
                              aData->InterferenceOnS1().FirstParameter(),
                              aData->InterferenceOnS1().LastParameter());
        }
        else if (IShape == aData->IndexOfS2())
        {
-         anOtherPCurve.Load (aData->InterferenceOnS2().PCurveOnFace(),
+    const Handle(Geom2d_Curve)& aPCurve = aData->InterferenceOnS2().PCurveOnFace();
+    if(aPCurve.IsNull())
+      continue;
+
+         anOtherPCurve.Load (aPCurve,
                              aData->InterferenceOnS2().FirstParameter(),
                              aData->InterferenceOnS2().LastParameter());
        }