0024023: Revamp the OCCT Handle - non-cost reference cast

[occt.git] / src / ChFi3d / ChFi3d_Builder_6.cxx

diff --git a/src/ChFi3d/ChFi3d_Builder_6.cxx b/src/ChFi3d/ChFi3d_Builder_6.cxx
index c41659d..8728a19 100644 (file)
--- a/src/ChFi3d/ChFi3d_Builder_6.cxx
+++ b/src/ChFi3d/ChFi3d_Builder_6.cxx
@@ -692,10 +692,13 @@ Standard_Boolean ChFi3d_Builder::StoreData(Handle(ChFiDS_SurfData)& Data,
   Standard_Real length1,length2;
   length1=Data->FirstExtensionValue();
   length2=Data->LastExtensionValue();
+
+  Handle(Geom_BoundedSurface) aBndSurf = Surf;
   if (length1 > Precision::Confusion())
-    GeomLib::ExtendSurfByLength(Surf,length1,1,Standard_False,Standard_False);
+    GeomLib::ExtendSurfByLength(aBndSurf,length1,1,Standard_False,Standard_False);
   if (length2 >  Precision::Confusion())
-    GeomLib::ExtendSurfByLength(Surf,length2,1,Standard_False,Standard_True);
+    GeomLib::ExtendSurfByLength(aBndSurf,length2,1,Standard_False,Standard_True);
+  Surf = Handle(Geom_BSplineSurface)::DownCast (aBndSurf);
 
   //Correction of surface on extremities
   if (length1 <= Precision::Confusion())