0031469: BRepFeat_MakePrism failed

BRepFeat_Form.cxx: methods IsDeleted, Modified, Generated are corrected
BRepTest_FeatureCommands.cxx: history treatment is added in methods DEFIN and PERF
bugs/modalg_7/bug31469: test case added

src/BRepFeat/BRepFeat_Form.cxx

@@ -1015,7 +1015,11 @@ static void Descendants(const TopoDS_Shape&,
 
 Standard_Boolean BRepFeat_Form::IsDeleted(const TopoDS_Shape& F)
 {
+  if (myMap.IsBound(F))
+  {
     return (myMap(F).IsEmpty());
+  }
+  return Standard_False;
 }
 
 //=======================================================================
@@ -1026,16 +1030,23 @@ Standard_Boolean BRepFeat_Form::IsDeleted(const TopoDS_Shape& F)
 const TopTools_ListOfShape& BRepFeat_Form::Modified
    (const TopoDS_Shape& F)
 {
+  myGenerated.Clear();
+  if (!IsDone())
+    return myGenerated;
+
+  if (mySbase.IsEqual(F))
+  {
+    myGenerated.Append(myShape);
+    return myGenerated;
+  }
+
   if (myMap.IsBound(F)) {
-    static TopTools_ListOfShape list;
-    list.Clear(); // For the second passage DPF
     TopTools_ListIteratorOfListOfShape ite(myMap(F));
     for(; ite.More(); ite.Next()) {
       const TopoDS_Shape& sh = ite.Value();
-      if(!sh.IsSame(F)) 
+      if(!sh.IsSame(F) && sh.ShapeType() == F.ShapeType()) 
-        list.Append(sh);
+        myGenerated.Append(sh);
     }
-    return list;
   }
   return myGenerated; // empty list
 }
@@ -1048,19 +1059,20 @@ const TopTools_ListOfShape& BRepFeat_Form::Modified
 const TopTools_ListOfShape& BRepFeat_Form::Generated
    (const TopoDS_Shape& S)
 {
+  myGenerated.Clear();
+  if (!IsDone())
+    return myGenerated;
   if (myMap.IsBound(S) &&
     S.ShapeType() != TopAbs_FACE) { // check if filter on face or not
-    static TopTools_ListOfShape list;
-    list.Clear(); // For the second passage DPF
     TopTools_ListIteratorOfListOfShape ite(myMap(S));
     for(; ite.More(); ite.Next()) {
       const TopoDS_Shape& sh = ite.Value();
       if(!sh.IsSame(S)) 
-        list.Append(sh);
+        myGenerated.Append(sh);
     }
-    return list;
+    return myGenerated;
   }
-  else return myGenerated;
+  return myGenerated;
 }
 
 

tests/bugs/modalg_7/bug31469

@@ -0,0 +1,43 @@
+puts "========"
+puts "0031469: Modeling Algorithms - 0031469: BRepFeat_MakePrism has problem with method IsDeleted(...)"
+puts "========"
+puts ""
+
+box S 400 250 300
+
+explode S face 
+mksurface pl2 S_2
+trim pl2 pl2 100 200 -200 -100
+mkface pbase pl2
+featprism S pbase S_2 -1 0 0 0 1
+featperformval prism pp 200
+checkshape pp
+checknbshapes pp -vertex 12 -edge 20 -face 11 -solid 1
+savehistory ph
+if { ![regexp "Not deleted" [isdeleted ph S]] } {
+  puts "Error: S has wrong delete status"
+}
+
+if { ![regexp "Not deleted" [isdeleted ph S_2]] } {
+  puts "Error: S_2 has wrong delete status"
+}
+
+if {![regexp "The shape has not been modified." [modified m1 ph S]] } {
+   checknbshapes m1 -vertex 12 -edge 20 -face 11 -solid 1
+} else {
+  puts "Error: S has wrong modified list"
+}
+
+if {![regexp "The shape has not been modified." [modified m2 ph S_2]] } {
+   checknbshapes m2 -vertex 8 -edge 8 -wire 2 -face 1
+} else {
+  puts "Error: S_2 has wrong modified list"
+}
+
+explode pbase e
+if {![regexp "No shapes were generated from the shape." [generated g1 ph pbase_1]] } {
+   checknbshapes g1 -vertex 2 -edge 3 -wire 1 -face 1
+   checkprops g1 -s 20000
+} else {
+  puts "Error: pbase_1 has wrong generated list"
+}