Fix of 20128 issue (EDF SMESH 926 : Quadratic conversion of BLSURF mesh).

diff --git a/src/SMESH/SMESH_MesherHelper.cxx b/src/SMESH/SMESH_MesherHelper.cxx
index 5fc6c55cc18e7cd74f10161e6d7595b5e71513cf..292c29ecb7fc8964985f66f29ef4b03eaae0c53c 100644 (file)
--- a/src/SMESH/SMESH_MesherHelper.cxx
+++ b/src/SMESH/SMESH_MesherHelper.cxx
@@ -469,6 +469,11 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetMediumNode(const SMDS_MeshNode* n1,
        gp_XY p1 = GetNodeUV(F,n1,n2);
         gp_XY p2 = GetNodeUV(F,n2,n1);
 
+       if ( IsDegenShape( Pos1->GetShapeId() ))
+         p1.SetCoord( myParIndex, p2.Coord( myParIndex ));
+       else if ( IsDegenShape( Pos2->GetShapeId() ))
+         p2.SetCoord( myParIndex, p1.Coord( myParIndex ));
+
        //checking if surface is periodic
        Handle(Geom_Surface) S = BRep_Tool::Surface(F);
        Standard_Real UF,UL,VF,VL;