0024595: STEP import missing surfaces

Modification to create natural bounds for face based on the spherical and Bspline surface and having only one bound represented by Vertex loop was made.
 According to the specification of ISO-10303 part 42:
    "If the face has only one bound and this is of type vertex_loop, then the interior of the face is the domain of the face_surface.face_geometry. In such a case the underlying surface shall be closed (e.g. a spherical_surface.)"
    - natural bounds are applied only in case if VertexLoop is only the one
      defined face bound.

src/StepToTopoDS/StepToTopoDS_TranslateFace.cxx

@@ -236,12 +236,7 @@ void StepToTopoDS_TranslateFace::Init
 //  Standard_Boolean fautcoudre =
 //    ( (NbBnd == 2) && (GeomSurf->IsUClosed() || GeomSurf->IsVClosed()) );
 
-  Standard_Boolean isExistOuter = Standard_False;
-  for (Standard_Integer i = 1; i <= NbBnd; i++) {
-    FaceBound = FS->BoundsValue(i);
-    if (FaceBound->IsKind(STANDARD_TYPE(StepShape_FaceOuterBound)))
-      isExistOuter = Standard_True;
-  }
+  
   for (Standard_Integer i = 1; i <= NbBnd; i ++) {
 
 #ifdef OCCT_DEBUG
@@ -265,13 +260,14 @@ void StepToTopoDS_TranslateFace::Init
       if (GeomSurf->IsKind (STANDARD_TYPE(Geom_SphericalSurface)) ||
           GeomSurf->IsKind (STANDARD_TYPE(Geom_BSplineSurface)) )
       {
-        if (!isExistOuter || FaceBound->IsKind(STANDARD_TYPE(StepShape_FaceOuterBound))) {
+        if (NbBnd ==1 || FaceBound->IsKind(STANDARD_TYPE(StepShape_FaceOuterBound))) {
           BRepBuilderAPI_MakeFace mf (GeomSurf, Precision());
           for (TopoDS_Iterator it(mf); it.More(); it.Next()) 
             B.Add (F, it.Value());
-        }
+        
 
         continue;
+        }
       }
       
       if (//GeomSurf->IsKind(STANDARD_TYPE(Geom_SphericalSurface)) ||

tests/de/step_1/D1

@@ -1,14 +1,13 @@
 # !!!! This file is generated automatically, do not edit manually! See end script
-
 set filename trj9_b2-ai-214.stp
 
 set ref_data {
 DATA        : Faulties = 0  ( 0 )  Warnings = 0  ( 0 )  Summary  = 0  ( 0 )
-TPSTAT      : Faulties = 0  ( 0 )  Warnings = 8  ( 38 )  Summary  = 8  ( 38 )
-CHECKSHAPE  : Wires    = 1  ( 1 )  Faces    = 1  ( 1 )  Shells   = 0  ( 0 )   Solids   = 0 ( 0 )
-NBSHAPES    : Solid    = 1  ( 1 )  Shell    = 1  ( 1 )  Face     = 221  ( 221 )   Summary  = 1465  ( 1463 )
-STATSHAPE   : Solid    = 1  ( 1 )  Shell    = 1  ( 1 )  Face     = 221  ( 221 )   FreeWire = 0  ( 0 )   FreeEdge  = 0 ( 0 )   SharedEdge = 610  ( 610 )
-TOLERANCE   : MaxTol   = 0.004950186716  ( 0.004950186717 )  AvgTol   =  0.0003553188051  (  0.0003621212346 )
+TPSTAT      : Faulties = 0  ( 0 )  Warnings = 7  ( 38 )  Summary  = 7  ( 38 )
+CHECKSHAPE  : Wires    = 0  ( 0 )  Faces    = 0  ( 0 )  Shells   = 0  ( 0 )   Solids   = 0 ( 0 )
+NBSHAPES    : Solid    = 1  ( 1 )  Shell    = 1  ( 1 )  Face     = 221  ( 221 )   Summary  = 1460  ( 1459 )
+STATSHAPE   : Solid    = 1  ( 1 )  Shell    = 1  ( 1 )  Face     = 221  ( 221 )   FreeWire = 0  ( 0 )   FreeEdge  = 0 ( 0 )   SharedEdge = 608  ( 608 )
+TOLERANCE   : MaxTol   = 0.004950137219  ( 0.004950137216 )  AvgTol   =  0.0003566630364  (  0.0003615446964 )
 LABELS      : N0Labels = 1  ( 1 )  N1Labels = 0  ( 0 )  N2Labels = 0  ( 0 )   TotalLabels = 1  ( 1 )   NameLabels = 1  ( 1 )   ColorLabels = 1  ( 1 )   LayerLabels = 0  ( 0 )
 PROPS       : Centroid = 1  ( 1 )  Volume   = 1  ( 1 )  Area     = 1  ( 1 )
 NCOLORS     : NColors  = 1  ( 1 )

tests/de/step_3/D8

@@ -1,15 +1,13 @@
 # !!!! This file is generated automatically, do not edit manually! See end script
-puts "TODO CR25013 Linux: Error : 1 differences with reference data found" 
-
 set filename trj6_pm4-hc-214.stp
 
 set ref_data {
 DATA        : Faulties = 0  ( 20 )  Warnings = 0  ( 60 )  Summary  = 0  ( 80 )
 TPSTAT      : Faulties = 0  ( 0 )  Warnings = 21  ( 557 )  Summary  = 21  ( 557 )
 CHECKSHAPE  : Wires    = 0  ( 0 )  Faces    = 0  ( 0 )  Shells   = 0  ( 0 )   Solids   = 0 ( 0 )
-NBSHAPES    : Solid    = 98  ( 98 )  Shell    = 98  ( 98 )  Face     = 1506  ( 1506 )   Summary  = 9262  ( 9257 )
+NBSHAPES    : Solid    = 98  ( 98 )  Shell    = 98  ( 98 )  Face     = 1506  ( 1506 )   Summary  = 9261  ( 9257 )
 STATSHAPE   : Solid    = 272  ( 272 )  Shell    = 272  ( 272 )  Face     = 3216  ( 3216 )   FreeWire = 0  ( 0 )   FreeEdge  = 0 ( 0 )   SharedEdge = 3315  ( 3311 )
-TOLERANCE   : MaxTol   =   0.9562231856  (      3.3196868 )  AvgTol   =  0.0007127405962  (  0.003722159881 )
+TOLERANCE   : MaxTol   =   0.9562231856  (      3.3196868 )  AvgTol   =  0.0007127401639  (  0.003722159846 )
 LABELS      : N0Labels = 230  ( 230 )  N1Labels = 1909  ( 1909 )  N2Labels = 0  ( 0 )   TotalLabels = 2139  ( 2139 )   NameLabels = 633  ( 633 )   ColorLabels = 1506  ( 1506 )   LayerLabels = 0  ( 0 )
 PROPS       : Centroid = 98  ( 98 )  Volume   = 98  ( 98 )  Area     = 98  ( 98 )
 NCOLORS     : NColors  = 6  ( 6 )