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0026837: SameParameter algorithm throws an exception

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Test case for issue CR26837
This commit is contained in:
ifv 2015-11-17 10:53:51 +03:00 committed by bugmaster
parent d2dfbc4d7d
commit 54f91e0332
2 changed files with 59 additions and 34 deletions
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76
src/GeomLib/GeomLib.cxx
View File

@ -882,83 +882,91 @@ void GeomLib::SameRange(const Standard_Real Tolerance,
{
if(CurvePtr.IsNull()) Standard_Failure::Raise();
if (Abs(LastOnCurve - RequestedLast) <= Tolerance &&
Abs(FirstOnCurve - RequestedFirst) <= Tolerance) {
NewCurvePtr = CurvePtr;
return;
Abs(FirstOnCurve - RequestedFirst) <= Tolerance)
{
NewCurvePtr = CurvePtr;
return;
}
// the parametrisation lentgh must at least be the same.
if (Abs(LastOnCurve - FirstOnCurve - RequestedLast + RequestedFirst)
<= Tolerance) {
if (CurvePtr->IsKind(STANDARD_TYPE(Geom2d_Line))) {
<= Tolerance)
{
if (CurvePtr->IsKind(STANDARD_TYPE(Geom2d_Line)))
{
Handle(Geom2d_Line) Line =
Handle(Geom2d_Line)::DownCast(CurvePtr->Copy());
Handle(Geom2d_Line)::DownCast(CurvePtr->Copy());
Standard_Real dU = FirstOnCurve - RequestedFirst;
gp_Dir2d D = Line->Direction() ;
Line->Translate(dU * gp_Vec2d(D));
NewCurvePtr = Line;
}
else if (CurvePtr->IsKind(STANDARD_TYPE(Geom2d_Circle))) {
else if (CurvePtr->IsKind(STANDARD_TYPE(Geom2d_Circle)))
{
gp_Trsf2d Trsf;
NewCurvePtr = Handle(Geom2d_Curve)::DownCast(CurvePtr->Copy());
Handle(Geom2d_Circle) Circ =
Handle(Geom2d_Circle)::DownCast(NewCurvePtr);
Handle(Geom2d_Circle)::DownCast(NewCurvePtr);
gp_Pnt2d P = Circ->Location();
Standard_Real dU;
if (Circ->Circ2d().IsDirect()) {
dU = FirstOnCurve - RequestedFirst;
dU = FirstOnCurve - RequestedFirst;
}
else {
dU = RequestedFirst - FirstOnCurve;
dU = RequestedFirst - FirstOnCurve;
}
Trsf.SetRotation(P,dU);
NewCurvePtr->Transform(Trsf) ;
}
else if (CurvePtr->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve))) {
else if (CurvePtr->IsKind(STANDARD_TYPE(Geom2d_TrimmedCurve)))
{
Handle(Geom2d_TrimmedCurve) TC =
Handle(Geom2d_TrimmedCurve)::DownCast(CurvePtr);
Handle(Geom2d_TrimmedCurve)::DownCast(CurvePtr);
GeomLib::SameRange(Tolerance,
TC->BasisCurve(),
FirstOnCurve , LastOnCurve,
RequestedFirst, RequestedLast,
NewCurvePtr);
TC->BasisCurve(),
FirstOnCurve , LastOnCurve,
RequestedFirst, RequestedLast,
NewCurvePtr);
NewCurvePtr = new Geom2d_TrimmedCurve( NewCurvePtr, RequestedFirst, RequestedLast );
}
//
// attention a des problemes de limitation : utiliser le MEME test que dans
// Geom2d_TrimmedCurve::SetTrim car sinon comme on risque de relimite sur
// RequestedFirst et RequestedLast on aura un probleme
//
//
//
// attention a des problemes de limitation : utiliser le MEME test que dans
// Geom2d_TrimmedCurve::SetTrim car sinon comme on risque de relimite sur
// RequestedFirst et RequestedLast on aura un probleme
//
//
else if (Abs(LastOnCurve - FirstOnCurve) > Precision::PConfusion() ||
Abs(RequestedLast + RequestedFirst) > Precision::PConfusion()) {
Abs(RequestedLast + RequestedFirst) > Precision::PConfusion())
{
Handle(Geom2d_TrimmedCurve) TC =
new Geom2d_TrimmedCurve(CurvePtr,FirstOnCurve,LastOnCurve);
new Geom2d_TrimmedCurve(CurvePtr,FirstOnCurve,LastOnCurve);
Handle(Geom2d_BSplineCurve) BS =
Geom2dConvert::CurveToBSplineCurve(TC);
Geom2dConvert::CurveToBSplineCurve(TC);
TColStd_Array1OfReal Knots(1,BS->NbKnots());
BS->Knots(Knots);
BSplCLib::Reparametrize(RequestedFirst,RequestedLast,Knots);
BS->SetKnots(Knots);
NewCurvePtr = BS;
}
}
else { // On segmente le resultat
else
{ // On segmente le resultat
Standard_Real Udeb = Max(CurvePtr->FirstParameter(), FirstOnCurve);
Standard_Real Ufin = Min(CurvePtr->LastParameter(), LastOnCurve);
Handle(Geom2d_TrimmedCurve) TC =
new Geom2d_TrimmedCurve( CurvePtr, FirstOnCurve, LastOnCurve );
new Geom2d_TrimmedCurve( CurvePtr, Udeb, Ufin );
//
Handle(Geom2d_BSplineCurve) BS =
Geom2dConvert::CurveToBSplineCurve(TC);
TColStd_Array1OfReal Knots(1,BS->NbKnots());
BS->Knots(Knots);
BSplCLib::Reparametrize(RequestedFirst,RequestedLast,Knots);
BS->SetKnots(Knots);
NewCurvePtr = BS;
}

17
tests/bugs/moddata_3/bug26837 Normal file
View File

@ -0,0 +1,17 @@
puts "========================"
puts "OCC26837"
puts "========================"
puts ""
#################################################
# SameParameter algorithm throws an exception
#################################################
restore [locate_data_file bug26837_e.brep] result
if [catch {sameparameter result} catch_result] {
puts "Faulty : SameParameter algorithm throws an exception"
} else {
puts "OK : SameParameter algorithm works properly"
}
set 2dviewer 1