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0033407: Shape Healing - Exception on fixshape call

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Added proper processing of singularities for a surface of revolution on a line.
This commit is contained in:
anv 2023-06-20 07:39:41 +01:00
parent 166845748b
commit a6120daa43
1 changed files with 60 additions and 30 deletions
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34
src/ShapeAnalysis/ShapeAnalysis_Surface.cxx
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@ -32,11 +32,13 @@
#include <Bnd_Box.hxx>
#include <BndLib_Add3dCurve.hxx>
#include <ElSLib.hxx>
#include <Extrema_ExtElC.hxx>
#include <Geom_BezierSurface.hxx>
#include <Geom_BoundedSurface.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Geom_ConicalSurface.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Line.hxx>
#include <Geom_OffsetSurface.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx>
@ -218,8 +220,35 @@ void ShapeAnalysis_Surface::ComputeSingularities()
}
else if ((mySurf->IsKind(STANDARD_TYPE(Geom_BoundedSurface))) ||
(mySurf->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) || //:b2 abv 18 Feb 98
(mySurf->IsKind(STANDARD_TYPE(Geom_OffsetSurface)))) { //rln S4135
(mySurf->IsKind(STANDARD_TYPE(Geom_OffsetSurface))))
{
Handle(Geom_SurfaceOfRevolution) aSoR = Handle(Geom_SurfaceOfRevolution)::DownCast(mySurf);
if (mySurf->IsKind(STANDARD_TYPE(Geom_OffsetSurface)))
{
aSoR = Handle(Geom_SurfaceOfRevolution)::DownCast((Handle(Geom_OffsetSurface)::DownCast(mySurf))->BasisSurface());
}
if (!aSoR.IsNull() &&
aSoR->BasisCurve()->IsKind(STANDARD_TYPE(Geom_Line)))
{
const gp_Lin aLine(aSoR->Axis());
Extrema_ExtElC anExtrema(aLine, (Handle(Geom_Line)::DownCast(aSoR->BasisCurve()))->Lin(), Precision::Angular());
if (anExtrema.IsDone() &&
anExtrema.NbExt() == 1)
{
Extrema_POnCurv anExPnts[2];
anExtrema.Points(1, anExPnts[0], anExPnts[1]);
myPreci[0] = 0;
myP3d[0] = anExPnts[1].Value();
myFirstP2d[0].SetCoord(su1, anExPnts[1].Parameter());
myLastP2d[0].SetCoord(su2, anExPnts[1].Parameter());
myFirstPar[0] = su1;
myLastPar[0] = su2;
myUIsoDeg[0] = Standard_False;
myNbDeg = 1;
}
}
else
{
//rln S4135 //:r3
myP3d[0] = myAdSur->Value(su1, 0.5 * (sv1 + sv2));
myFirstP2d[0].SetCoord(su1, sv2);
@ -257,6 +286,7 @@ void ShapeAnalysis_Surface::ComputeSingularities()
myNbDeg = 4;
}
}
SortSingularities();
}