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0026385: Fix to prevent BRepMesh from possible crash due to pointer to local variable stored inside Extrema_LocateExtPC

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Made the BRepAdaptor_Curve a member of BRepMesh_EdgeParameterProvider to ensure that it is created before and destroyed after the Extrema_LocateExtPC that uses it.
This commit is contained in:
abelcsik 2015-07-02 16:30:57 +02:00 committed by bugmaster
parent 8948e7784a
commit 51aed73084
2 changed files with 6 additions and 4 deletions
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8
src/BRepMesh/BRepMesh_EdgeParameterProvider.cxx
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@ -32,7 +32,8 @@ BRepMesh_EdgeParameterProvider::BRepMesh_EdgeParameterProvider(
const Handle(TColStd_HArray1OfReal)& theParameters) const Handle(TColStd_HArray1OfReal)& theParameters)
: myParameters(theParameters), : myParameters(theParameters),
myIsSameParam(BRep_Tool::SameParameter(theEdge)), myIsSameParam(BRep_Tool::SameParameter(theEdge)),
myScale(1.) myScale(1.),
myCurveAdaptor(theEdge, theFace)
{ {
if (myIsSameParam) if (myIsSameParam)
return; return;
@ -58,9 +59,8 @@ BRepMesh_EdgeParameterProvider::BRepMesh_EdgeParameterProvider(
(aOldLastParam - myOldFirstParam); (aOldLastParam - myOldFirstParam);
} }
BRepAdaptor_Curve aCOnS(theEdge, theFace); myProjector.Initialize(myCurveAdaptor, myCurveAdaptor.FirstParameter(),
myProjector.Initialize(aCOnS, aCOnS.FirstParameter(), myCurveAdaptor.LastParameter(), Precision::PConfusion());
aCOnS.LastParameter(), Precision::PConfusion());
} }
//======================================================================= //=======================================================================

2
src/BRepMesh/BRepMesh_EdgeParameterProvider.hxx
View File

@ -20,6 +20,7 @@
#include <Standard_DefineAlloc.hxx> #include <Standard_DefineAlloc.hxx>
#include <Extrema_LocateExtPC.hxx> #include <Extrema_LocateExtPC.hxx>
#include <TColStd_HArray1OfReal.hxx> #include <TColStd_HArray1OfReal.hxx>
#include <BRepAdaptor_Curve.hxx>
class gp_Pnt; class gp_Pnt;
class TopoDS_Edge; class TopoDS_Edge;
@ -63,6 +64,7 @@ private:
Standard_Real myCurParam; Standard_Real myCurParam;
Standard_Real myFoundParam; Standard_Real myFoundParam;
BRepAdaptor_Curve myCurveAdaptor;
Extrema_LocateExtPC myProjector; Extrema_LocateExtPC myProjector;
}; };