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0031984: Modeling Algorithms - Sweep crashes if Bi-normal is given

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Small modification in BRepFill_Sweep: to avoid exception, return status NotDone if construction of pipe surface fails.
This commit is contained in:
jgv 2021-04-13 16:03:21 +03:00 committed by bugmaster
parent 2c8eacb996
commit dd56857183
2 changed files with 27 additions and 3 deletions
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18
src/BRepFill/BRepFill_Sweep.cxx
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@ -2969,13 +2969,25 @@ void BRepFill_Sweep::Build(TopTools_MapOfShape& ReversedEdges,
// Construction of the shell // Construction of the shell
TopoDS_Shell shell; TopoDS_Shell shell;
B.MakeShell(shell); B.MakeShell(shell);
Standard_Integer aNbFaces = 0;
for (ipath=1; ipath<=NbPath; ipath++) for (ipath=1; ipath<=NbPath; ipath++)
for (isec=1; isec <=NbLaw; isec++) { for (isec=1; isec <=NbLaw; isec++)
const TopoDS_Shape& face = myFaces->Value(isec, ipath); {
const TopoDS_Shape& face = myFaces->Value(isec, ipath);
if (!face.IsNull() && if (!face.IsNull() &&
(face.ShapeType() == TopAbs_FACE) ) B.Add(shell, face); (face.ShapeType() == TopAbs_FACE) )
{
B.Add(shell, face);
aNbFaces++;
}
} }
if (aNbFaces == 0)
{
isDone = Standard_False;
return;
}
TopTools_ListIteratorOfListOfShape It(myAuxShape); TopTools_ListIteratorOfListOfShape It(myAuxShape);
for (; It.More(); It.Next()) { for (; It.More(); It.Next()) {
const TopoDS_Shape& face = It.Value(); const TopoDS_Shape& face = It.Value();

12
tests/bugs/modalg_7/bug31984 Normal file
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@ -0,0 +1,12 @@
puts "=============================================="
puts " 0031984: Sweep crashes if Bi-normal is given"
puts "=============================================="
puts ""
restore [locate_data_file bug31984.brep] a
explode a
mksweep a_1
addsweep a_2
setsweep -CN 0 0 1
buildsweep result