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0027991: Modeling Algorithms - BRepGProp_Face crashes on face without geometric surface

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BRepGProps now ignores faces without geometric surface to avoid access violation.
BRepExtrema_DistShapeShape::DistanceMapMap() now skips comparison between void bounding boxes.
BRepBndLib::Add() now ignores useTriangulation flag for faces without geometric surfaces, and uses triangulation if any for updating of the box.
This commit is contained in:
kgv
2016-10-22 18:37:51 +03:00
committed by apv
parent ee5befae97
commit 4d19a2c5e7
4 changed files with 29 additions and 8 deletions
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12
src/BRepBndLib/BRepBndLib.cxx
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@@ -80,16 +80,15 @@ void BRepBndLib::Add(const TopoDS_Shape& S, Bnd_Box& B, Standard_Boolean useTria
// Add the faces
BRepAdaptor_Surface BS;
Handle(Geom_Surface) GS;
Handle(Poly_Triangulation) T;
TopLoc_Location l;
TopLoc_Location l, aDummyLoc;
Standard_Integer i, nbNodes;
BRepAdaptor_Curve BC;
for (ex.Init(S,TopAbs_FACE); ex.More(); ex.Next()) {
const TopoDS_Face& F = TopoDS::Face(ex.Current());
T = BRep_Tool::Triangulation(F, l);
if (useTriangulation && !T.IsNull())
const Handle(Poly_Triangulation)& T = BRep_Tool::Triangulation(F, l);
const Handle(Geom_Surface)& GS = BRep_Tool::Surface (F, aDummyLoc);
if ((useTriangulation || GS.IsNull()) && !T.IsNull())
{
nbNodes = T->NbNodes();
const TColgp_Array1OfPnt& Nodes = T->Nodes();
@@ -101,7 +100,6 @@ void BRepBndLib::Add(const TopoDS_Shape& S, Bnd_Box& B, Standard_Boolean useTria
B.Enlarge(T->Deflection() + BRep_Tool::Tolerance(F));
} else
{
GS = BRep_Tool::Surface(F, l);
if (!GS.IsNull()) {
BS.Initialize(F, Standard_False);
if (BS.GetType() != GeomAbs_Plane) {
@@ -130,7 +128,7 @@ void BRepBndLib::Add(const TopoDS_Shape& S, Bnd_Box& B, Standard_Boolean useTria
// Add the edges not in faces
Handle(TColStd_HArray1OfInteger) HIndices;
Handle(Poly_PolygonOnTriangulation) Poly;
Handle(Poly_Triangulation) T;
for (ex.Init(S,TopAbs_EDGE,TopAbs_FACE); ex.More(); ex.Next())
{
const TopoDS_Edge& E = TopoDS::Edge(ex.Current());