OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-08-14 13:30:48 +03:00
Code Activity

0026419: [Regression?] Export of a reversed face leads to crash in 6.9.0 although proceeded in 6.8.0

Browse Source 
Take basis surface from trimmed surfaces during IGES writing, because pcurves will be transformed, so trim will be shifted, accorded to new face bounds,
fix updating of seam edge,
change condition of using Segment during exporting periodic BSpline surfaces to IGES (if bounds are not in one period).

Test cases for issue CR26419
This commit is contained in:
ika
2015-09-08 16:20:42 +03:00
committed by bugmaster
parent 5174095875
commit eeec098631
5 changed files with 47 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/GeomToIGES/GeomToIGES_GeomSurface.cxx
View File

@@ -274,7 +274,7 @@ Handle(IGESData_IGESEntity) GeomToIGES_GeomSurface::TransferSurface(const Handle
Vmin += vShift;
Vmax += vShift;
}
if ( Abs(uShift) > Precision::PConfusion() || Abs(vShift) > Precision::PConfusion()) {
if (PeriodU || PeriodV) {
Standard_Boolean isNeedSegment = Standard_True;
isNeedSegment = Abs(Umax-Umin) > Precision::PConfusion() &&
Abs(Vmax-Vmin) > Precision::PConfusion();
@@ -283,7 +283,7 @@ Handle(IGESData_IGESEntity) GeomToIGES_GeomSurface::TransferSurface(const Handle
vMaxShift = ShapeAnalysis::AdjustToPeriod(Vfin, V0, V1);
isNeedSegment &=
(PeriodU && Abs(uShift - uMaxShift) > Precision::PConfusion()) ||
(PeriodV && Abs(vShift - vMaxShift) > Precision::PConfusion());
(PeriodV && Abs(vShift - vMaxShift) > Precision::PConfusion());
if (isNeedSegment) {
try {
OCC_CATCH_SIGNALS
@@ -294,7 +294,7 @@ Handle(IGESData_IGESEntity) GeomToIGES_GeomSurface::TransferSurface(const Handle
PeriodU = Standard_False;
if ((V1 - V0) - (Vmax - Vmin) > Precision::PConfusion())
PeriodV = Standard_False;
mysurface = bspl;
mysurface = bspl;
}
}
catch ( Standard_Failure ) {
@@ -303,10 +303,9 @@ Handle(IGESData_IGESEntity) GeomToIGES_GeomSurface::TransferSurface(const Handle
cout << "Warning: Exception in Segment(): " ;
Standard_Failure::Caught()->Print(cout);
#endif
}
}
}
}
//unperiodize surface to get neccessary for IGES standard number of knots and mults
if ( mysurface->IsUPeriodic() ) {
mysurface->SetUNotPeriodic();