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0031260: Geom2dGcc_Circ2d2TanRad fails in this case (720)

Browse Source 
Adaptor2d/Adaptor2d_OffsetCurve.cxx:
Function nbPoints(...) is modified

Test case added
This commit is contained in:
ifv 2020-01-16 12:07:33 +03:00 committed by bugmaster
parent 08353e37cf
commit 389f5b59dd
2 changed files with 32 additions and 8 deletions
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13
src/Adaptor2d/Adaptor2d_OffsetCurve.cxx
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@ -656,19 +656,16 @@ static Standard_Integer nbPoints(const Handle(Adaptor2d_HCurve2d)& theCurve)
Standard_Integer nbs = 20; Standard_Integer nbs = 20;
if (theCurve->GetType() == GeomAbs_Line) if (theCurve->GetType() == GeomAbs_BezierCurve)
nbs = 2;
else if (theCurve->GetType() == GeomAbs_BezierCurve)
{ {
nbs = 3 + theCurve->NbPoles(); nbs = Max(nbs, 3 + theCurve->NbPoles());
} }
else if (theCurve->GetType() == GeomAbs_BSplineCurve) { else if (theCurve->GetType() == GeomAbs_BSplineCurve) {
nbs = theCurve->NbKnots(); nbs = Max(nbs, theCurve->NbKnots() * theCurve->Degree());
nbs *= theCurve->Degree();
} }
if (nbs > 200) if (nbs > 300)
nbs = 200; nbs = 300;
return nbs; return nbs;
} }

27
tests/bugs/modalg_7/bug31260 Normal file
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@ -0,0 +1,27 @@
puts "========"
puts "0031260: Geom2dGcc_Circ2d2TanRad fails in this case (720)"
puts "========"
puts ""
restore [locate_data_file bug31260.brep] t
mkcurve c t
plane p 0.0 0.0 12.649999618530273 0.0 0.0 1.0
to2d c2d c p
point pnt 11.9850 12.0585
cirtang r -c c2d -p pnt -r 0.5
smallview -2D-
2dfit
xwd ${imagedir}/${test_image}.png
set NbCurv [llength [directory r_*]]
if { $NbCurv == 2 } {
puts "OK: Number of circles is good"
} else {
puts "Error: Not all solutions"
}