0024667: BRepOffsetAPI_MakePipe::FirstShape() and LastShape() return shapes not from result

Test case for issue CR24667

src/BRepFill/BRepFill_Pipe.cxx

@@ -639,6 +639,15 @@ TopoDS_Shape BRepFill_Pipe::MakeShape(const TopoDS_Shape& S,
       MkSw.Build( myReversedEdges, myTapes,
                   BRepFill_Modified, myContinuity, GeomFill_Location, myDegmax, mySegmax );
       result = MkSw.Shape();
+
+      Handle(TopTools_HArray2OfShape) aSections = MkSw.Sections();
+
+      if (aSections.IsNull() == Standard_False) {
+        const Standard_Integer aVLast = aSections->UpperCol();
+
+        myFirst = aSections->Value(1, 1);
+        myLast  = aSections->Value(1, aVLast);
+      }
     }
 
     if (TheS.ShapeType() == TopAbs_WIRE ) {

src/QABugs/QABugs_19.cxx

@@ -46,6 +46,8 @@
 #include <NCollection_Map.hxx>
 #include <NCollection_Handle.hxx>
 #include <TCollection_HAsciiString.hxx>
+#include <GeomFill_Trihedron.hxx>
+#include <BRepOffsetAPI_MakePipe.hxx>
 
 #include <Standard_Version.hxx>
 
@@ -1724,6 +1726,64 @@ static Standard_Integer OCC24622 (Draw_Interpretor& /*theDi*/, Standard_Integer
   return 0;
 }
 
+//=======================================================================
+//function : OCC24667
+//purpose  : 
+//=======================================================================
+static Standard_Integer OCC24667 (Draw_Interpretor& di, Standard_Integer n, const char** a)
+{
+  if (n == 1)
+  {
+    di << "OCC24667 result Wire_spine Profile [Mode [Approx]]" << "\n";
+    di << "Mode = 0 - CorrectedFrenet," << "\n";
+    di << "     = 1 - Frenet," << "\n";
+    di << "     = 2 - DiscreteTrihedron" << "\n";
+    di << "Approx - force C1-approximation if result is C0" << "\n";
+    return 0;
+  }
+
+  if (n > 1 && n < 4) return 1;
+
+  TopoDS_Shape Spine = DBRep::Get(a[2],TopAbs_WIRE);
+  if ( Spine.IsNull()) return 1;
+
+  TopoDS_Shape Profile = DBRep::Get(a[3]);
+  if ( Profile.IsNull()) return 1;
+
+  GeomFill_Trihedron Mode = GeomFill_IsCorrectedFrenet;
+  if (n >= 5)
+  {
+    Standard_Integer iMode = atoi(a[4]);
+    if (iMode == 1)
+      Mode = GeomFill_IsFrenet;
+    else if (iMode == 2)
+      Mode = GeomFill_IsDiscreteTrihedron;
+  }
+
+  Standard_Boolean ForceApproxC1 = Standard_False;
+  if (n >= 6)
+    ForceApproxC1 = Standard_True;
+
+  BRepOffsetAPI_MakePipe aPipe(TopoDS::Wire(Spine),
+                                          Profile,
+                                          Mode,
+                                          ForceApproxC1);
+
+  TopoDS_Shape S = aPipe.Shape();
+  TopoDS_Shape aSF = aPipe.FirstShape();
+  TopoDS_Shape aSL = aPipe.LastShape();
+
+  DBRep::Set(a[1],S);
+
+  TCollection_AsciiString aStrF(a[1], "_f");
+  TCollection_AsciiString aStrL(a[1], "_l");
+
+  DBRep::Set(aStrF.ToCString(), aSF);
+  DBRep::Set(aStrL.ToCString(), aSL);
+
+  return 0;
+}
+
 void QABugs::Commands_19(Draw_Interpretor& theCommands) {
   const char *group = "QABugs";
 
@@ -1759,9 +1819,7 @@ void QABugs::Commands_19(Draw_Interpretor& theCommands) {
   theCommands.Add ("OCC24012", "OCC24012 face edge", __FILE__, OCC24012, group);
   theCommands.Add ("OCC24051", "OCC24051", __FILE__, OCC24051, group);
   theCommands.Add ("OCC24086", "OCC24086 face wire", __FILE__, OCC24086, group);
-  theCommands.Add ("OCC24622", 
+  theCommands.Add ("OCC24622", "OCC24622 texture={1D|2D}\n Tests sourcing of 1D/2D pixmaps for AIS_TexturedShape", __FILE__, OCC24622, group);
-                   "OCC24622 texture={1D|2D}\n"
+  theCommands.Add ("OCC24667", "OCC24667 result Wire_spine Profile [Mode [Approx]], no args to get help", __FILE__, OCC24667, group);
-                   " Tests sourcing of 1D/2D pixmaps for AIS_TexturedShape.\n",
-                   __FILE__, OCC24622, group);
   return;
 }

tests/bugs/modalg_5/bug24667

@@ -0,0 +1,34 @@
+puts "============"
+puts "OCC24667"
+puts "============"
+puts ""
+###############################################################################################
+# BRepOffsetAPI_MakePipe::FirstShape() and LastShape() return shapes not from result
+###############################################################################################
+
+pload QAcommands
+
+vertex v1 0 0 0
+vertex v2 0 0 100
+vertex v3 0 -50 0
+
+edge e v1 v2
+wire w e
+OCC24667 r w v3
+
+compound r r_f r_l result
+
+set length 100
+
+# Analysis of "nbshapes result"
+set nb_v_good 2
+set nb_e_good 1
+set nb_w_good 1
+set nb_f_good 0
+set nb_sh_good 0
+set nb_sol_good 0
+set nb_compsol_good 0
+set nb_compound_good 1
+set nb_shape_good 5
+
+set 2dviewer 1