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0023938: Crash at StepToTopoDS_TranslateEdgeLoop::Init() &StepToTopoDS_TranslateEdge::Init()

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necessary checks were added
This commit is contained in:
ika 2013-05-14 14:29:28 +04:00
parent ac4aaa9821
commit 2a141d40f0
1 changed files with 11 additions and 5 deletions
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16
src/StepToTopoDS/StepToTopoDS_TranslateEdgeLoop.cxx
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@ -291,14 +291,16 @@ void StepToTopoDS_TranslateEdgeLoop::Init(const Handle(StepShape_FaceBound)& Fac
StepEdge1 = StepEdge; //
Handle(StepShape_EdgeCurve) EC = Handle(StepShape_EdgeCurve)::DownCast(StepEdge);
Handle(StepGeom_Curve) C = EC->EdgeGeometry();
if (C->IsKind(STANDARD_TYPE(StepGeom_SurfaceCurve))) {
Handle(StepGeom_SurfaceCurve) Sc = Handle(StepGeom_SurfaceCurve)::DownCast(C);
C = Sc->Curve3d();
if (!C.IsNull()){
if (C->IsKind(STANDARD_TYPE(StepGeom_SurfaceCurve))) {
Handle(StepGeom_SurfaceCurve) Sc = Handle(StepGeom_SurfaceCurve)::DownCast(C);
C = Sc->Curve3d();
// if (modepcurve != 3) {
// lastpcurve = StepToTopoDS_GeometricTool::PCurve (Sc,StepSurf,StepPCurve1);
// if (StepPCurve1 == StepPCurve) modepcurve = -1;
// StepPCurve = StepPCurve1;
// }
}
}
//// else if (C->IsKind(STANDARD_TYPE(StepGeom_Polyline))) { }
// else if (C->IsKind(STANDARD_TYPE(StepGeom_Pcurve))) {
@ -462,8 +464,12 @@ void StepToTopoDS_TranslateEdgeLoop::Init(const Handle(StepShape_FaceBound)& Fac
// --------------------------------------------
// CASE 1 : The Edge Geometry is of Pcurve Type
// --------------------------------------------
if (C->IsKind(STANDARD_TYPE(StepGeom_Pcurve))) {
if (C.IsNull())
{
aTool.ComputePCurve(Standard_True);
hasPcurve = Standard_False;
}
else if (C->IsKind(STANDARD_TYPE(StepGeom_Pcurve))) {
Handle(StepGeom_Pcurve) StepPCurve = Handle(StepGeom_Pcurve)::DownCast(C);
C2d = myTranEdge.MakePCurve (StepPCurve,ConvSurf);
// -- Statistics --