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0032264: Data Exchange - STEP exporter generates bad geometry [REGRESSION since 7.4.0]

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Location of edge is applied to geom curve before analysis of vertices projections
This commit is contained in:
gka 2021-03-31 11:43:16 +03:00 committed by bugmaster
parent ae64fe0119
commit 5e4f263d1c
2 changed files with 12 additions and 3 deletions
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7
src/TopoDSToStep/TopoDSToStep_MakeStepEdge.cxx
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@ -186,9 +186,11 @@ void TopoDSToStep_MakeStepEdge::Init(const TopoDS_Edge& aEdge,
Handle(StepGeom_Curve) Gpms;
Handle(Geom_Curve) C = CA.Curve().Curve();
if (!C.IsNull()) {
C = Handle(Geom_Curve)::DownCast(C->Copy());
gp_Trsf Tr1 = CA.Trsf();
C->Transform(Tr1);
// Special treatment is needed for very short edges based on periodic curves.
// Since edge in STEP does not store its parametric range, parameters are computed
// on import by projecting vertices on a curve, and for periodic curve this may
@ -246,8 +248,7 @@ void TopoDSToStep_MakeStepEdge::Init(const TopoDS_Edge& aEdge,
}
}
gp_Trsf Tr1 = CA.Trsf();
C->Transform(Tr1);
GeomToStep_MakeCurve MkCurve(C);
Gpms = MkCurve.Value();
}

8
tests/bugs/step/bug32264 Normal file
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@ -0,0 +1,8 @@
restore [locate_data_file bug32264.brep] s
set aTmpFile "$imagedir/${casename}.brep"
testwritestep "$aTmpFile" s
testreadstep "$aTmpFile" s1
file delete "$aTmpFile"
checkshape s1 f
checkmaxtol s1 -ref 1.e-7
checkprops s1 -v 16.1759 -deps 0.01