Standard_EXPORT Standard_Boolean IsTangent();
+ Standard_EXPORT Standard_Boolean IsTangentSmooth() ;
+
const gp_Vec& Direction3d();
const gp_Dir2d& Direction2d();
+ Standard_EXPORT Standard_Boolean DerivativesAndNormalOnPSurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) ;
+
+ Standard_EXPORT Standard_Boolean DerivativesAndNormalOnISurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) const;
+
+ Standard_Real SquareTangentError() const;
+
const BRepAdaptor_Surface& PSurface() const;
const IntSurf_Quadric& ISurface() const;
Standard_Real tgdu;
Standard_Real tgdv;
gp_Vec gradient;
+ gp_Vec d1u_isurf;
+ gp_Vec d1v_isurf;
Standard_Boolean derived;
gp_Vec d1u;
gp_Vec d1v;
if (seqpdep.Length() != 0 || seqpins.Length() != 0) {
Contap_TheIWalking iwalk(Preci,Fleche,Pas);
- iwalk.Perform(seqpdep,seqpins,mySFunc ,Surf);
+ IntSurf_SequenceOfInteriorPoint seqptang; //dummy
+ iwalk.Perform(seqpdep,seqpins,seqptang,mySFunc ,Surf);
if(!iwalk.IsDone()) {
return;
}
Standard_EXPORT Standard_Boolean IsTangent();
+ Standard_Boolean IsTangentSmooth() ;
+
const gp_Vec& Direction3d();
const gp_Dir2d& Direction2d();
+ Standard_Boolean DerivativesAndNormalOnPSurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) ;
+
+ Standard_Boolean DerivativesAndNormalOnISurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) const;
+
+ Standard_Real SquareTangentError() const;
+
Contap_TFunction FunctionType() const;
const gp_Pnt& Eye() const;
return myAng;
}
+inline Standard_Boolean Contap_SurfFunction::IsTangentSmooth()
+{
+ return Standard_False;
+}
+
+inline Standard_Boolean Contap_SurfFunction::DerivativesAndNormalOnPSurf(gp_Vec&,
+ gp_Vec&,
+ gp_Vec&,
+ gp_Vec&,
+ gp_Vec&,
+ gp_Vec&)
+{
+ return Standard_False;
+}
+
+inline Standard_Boolean Contap_SurfFunction::DerivativesAndNormalOnISurf(gp_Vec&,
+ gp_Vec&,
+ gp_Vec&,
+ gp_Vec&,
+ gp_Vec&,
+ gp_Vec&) const
+{
+ return Standard_False;
+}
+
+inline Standard_Real Contap_SurfFunction::SquareTangentError() const
+{
+ return 0.;
+}
+
inline Contap_TFunction Contap_SurfFunction::FunctionType () const
{
return myType;
void SetTangencyAtEnd (const Standard_Boolean IsTangent);
+ void SetTangency (const Standard_Boolean IsTangency) ;
+
Standard_Integer NbPoints() const;
const IntSurf_PntOn2S& Value (const Standard_Integer Index) const;
Standard_Boolean IsTangentAtBegining() const;
Standard_Boolean IsTangentAtEnd() const;
+
+ Standard_Boolean IsTangency() const;
gp_Vec vcttg;
Standard_Boolean istgtbeg;
Standard_Boolean istgtend;
+ Standard_Boolean istangency;
};
void SetTolerance (const Standard_Real Epsilon, const Standard_Real Deflection, const Standard_Real Step);
- Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, Contap_SurfFunction& Func, const Handle(Adaptor3d_HSurface)& S, const Standard_Boolean Reversed = Standard_False);
+ Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, const IntSurf_SequenceOfInteriorPoint& Pnts3, Contap_SurfFunction& Func, const Handle(Adaptor3d_HSurface)& S, const Standard_Boolean Reversed = Standard_False) ;
Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, Contap_SurfFunction& Func, const Handle(Adaptor3d_HSurface)& S, const Standard_Boolean Reversed = Standard_False);
Standard_EXPORT Standard_Boolean TestArretPassage (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const math_Vector& UV, const Standard_Integer Index, Standard_Integer& Irang);
- Standard_EXPORT Standard_Boolean TestArretAjout (Contap_SurfFunction& Section, math_Vector& UV, Standard_Integer& Irang, IntSurf_PntOn2S& PSol);
+ Standard_EXPORT Standard_Boolean TestArretPassageTang (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const math_Vector& UV, const Standard_Integer Index, Standard_Integer& Irang) ;
+
+ Standard_EXPORT Standard_Boolean TestArretAjout (Contap_SurfFunction& Section, math_Vector& UV, Standard_Integer& Irang, IntSurf_PntOn2S& PSol, Standard_Boolean& OnPrevTangency) ;
Standard_EXPORT void TestArretCadre (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const Handle(Contap_TheIWLineOfTheIWalking)& Line, Contap_SurfFunction& Section, math_Vector& UV, Standard_Integer& Irang);
- Standard_EXPORT IntWalk_StatusDeflection TestDeflection (Contap_SurfFunction& Section, const Standard_Boolean Finished, const math_Vector& UV, const IntWalk_StatusDeflection StatusPrecedent, Standard_Integer& NbDivision, Standard_Real& Step, const Standard_Integer StepSign);
+ Standard_EXPORT IntWalk_StatusDeflection TestDeflection (Contap_SurfFunction& Section, const Standard_Boolean Finished, const math_Vector& UV, const IntWalk_StatusDeflection StatusPrecedent, Standard_Integer& NbDivision, Standard_Real& Step, const Standard_Integer StepSign, const Standard_Integer CurNbPoints, const Standard_Boolean ArretAjout, const Standard_Boolean OnPrevTangency) ;
Standard_EXPORT void ComputeOpenLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, Contap_SurfFunction& Section, Standard_Boolean& Rajout);
Standard_EXPORT void OpenLine (const Standard_Integer N, const IntSurf_PntOn2S& Psol, const IntSurf_SequenceOfPathPoint& Pnts1, Contap_SurfFunction& Section, const Handle(Contap_TheIWLineOfTheIWalking)& Line);
- Standard_EXPORT void ComputeCloseLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, Contap_SurfFunction& Section, Standard_Boolean& Rajout);
+ Standard_EXPORT void ComputeCloseLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, const IntSurf_SequenceOfInteriorPoint& Pnts3, Contap_SurfFunction& Section, Standard_Boolean& Rajout) ;
Standard_EXPORT void AddPointInCurrentLine (const Standard_Integer N, const IntSurf_PathPoint& PathPnt, const Handle(Contap_TheIWLineOfTheIWalking)& CurrentLine) const;
Standard_EXPORT void MakeWalkingPoint (const Standard_Integer Case, const Standard_Real U, const Standard_Real V, Contap_SurfFunction& Section, IntSurf_PntOn2S& Psol);
- Standard_EXPORT void Clear();
+ Standard_EXPORT void FindExactCuspPoint (Contap_SurfFunction& Section, IntSurf_PntOn2S& Psol, const Standard_Integer PrevSignOfBcoeff, const Standard_Integer SignOfBcoeff) ;
+
+ Standard_EXPORT void FindExactTangentPoint (const Standard_Real TolTang, Contap_SurfFunction& Section, IntSurf_PntOn2S& Psol) ;
+
+ Standard_EXPORT Standard_Boolean ComputeDirOfTangentialIntersection (Contap_SurfFunction& Section, Standard_Integer& StepSign, Standard_Boolean& IsDiscriminantNull, Standard_Integer& SignOfBcoeff, gp_Vec& NewD3d, gp_Dir2d& NewD2d) ;
+
+ Standard_EXPORT void Clear() ;
Standard_Boolean reversed;
IntWalk_VectorOfWalkingData wd1;
IntWalk_VectorOfWalkingData wd2;
+ IntWalk_VectorOfWalkingData wd3;
IntWalk_VectorOfInteger nbMultiplicities;
Standard_Real Um;
Standard_Real UM;
IntSurf_PntOn2S previousPoint;
gp_Vec previousd3d;
gp_Dir2d previousd2d;
+ Standard_Boolean IsTangentialIntersection;
TColStd_SequenceOfInteger seqAjout;
Contap_SequenceOfIWLineOfTheIWalking lines;
Standard_Integer NbPoints() const;
- const IntSurf_InteriorPoint& Value (const Standard_Integer Index) const;
+ Standard_Integer NbTangentPoints() const;
+
+ const IntSurf_InteriorPoint& Value (const Standard_Integer Index) const;
+
+ const IntSurf_InteriorPoint& TangentPoint (const Standard_Integer Index) const;
Standard_Boolean done;
IntSurf_SequenceOfInteriorPoint list;
+ IntSurf_SequenceOfInteriorPoint myTangentPoints;
};
Standard_EXPORT Standard_Boolean IsTangent();
+ Standard_EXPORT Standard_Boolean IsTangentSmooth() ;
+
const gp_Vec& Direction3d();
const gp_Dir2d& Direction2d();
+ Standard_EXPORT Standard_Boolean DerivativesAndNormalOnPSurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) ;
+
+ Standard_EXPORT Standard_Boolean DerivativesAndNormalOnISurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) const;
+
+ Standard_Real SquareTangentError() const;
+
const Handle(Adaptor3d_HSurface)& PSurface() const;
const IntSurf_Quadric& ISurface() const;
Standard_Real tgdu;
Standard_Real tgdv;
gp_Vec gradient;
+ gp_Vec d1u_isurf;
+ gp_Vec d1v_isurf;
Standard_Boolean derived;
gp_Vec d1u;
gp_Vec d1v;
v = X(2);
ThePSurfaceTool::D1(SURF, u, v, pntsol, d1u, d1v);
TheISurfaceTool::ValueAndGradient(FUNC, pntsol.X(), pntsol.Y(), pntsol.Z(),
- valf, gradient);
+ valf, gradient, d1u_isurf, d1v_isurf);
F(1) = valf;
D(1,1) = d1u.Dot(gradient);
D(1,2) = d1v.Dot(gradient);
Standard_Real N2d1v = d1v.SquareMagnitude();
tangent =(tgdu * tgdu <= N2grad_EpsAng2 * N2d1v) &&
(tgdv * tgdv <= N2grad_EpsAng2 * N2d1u);
+
+#ifdef DRAW
+ if (tangent)
+ {
+ Standard_Real SumSquare = tgdu * tgdu + tgdv * tgdv;
+ gp_Vec NormSURF = d1u ^ d1v;
+ cout<<"Tangent !!!"<<endl;
+ cout<<"SumSquare = "<<SumSquare<<endl;
+ cout<<"u = "<<u<<", v = "<<v<<endl;
+ cout<<"pnt = "<<pntsol.X()<<" "<<pntsol.Y()<<" "<<pntsol.Z()<<endl;
+ }
+#endif
+
if(!tangent) {
d3d.SetLinearForm(tgdu,d1u,tgdv,d1v);
d2d = gp_Dir2d(tgdu, tgdv);
if (d3d.Magnitude() <= Tolpetit) { // jag
tangent = Standard_True;
}
- }
+
+#ifdef DRAW
+ gp_Vec NormSURF = d1u ^ d1v;
+ cout<<"u = "<<u<<", v = "<<v<<endl;
+ cout<<"pnt = "<<pntsol.X()<<" "<<pntsol.Y()<<" "<<pntsol.Z()<<endl;
+ cout<<"d3d = "<<d3d.X()<<" "<<d3d.Y()<<" "<<d3d.Z()<<endl;
+#endif
+ }
}
return tangent;
}
+Standard_Boolean IntImp_ZerImpFunc::IsTangentSmooth()
+{
+ const Standard_Real TolCrossProd = 1.e-15;
+
+ if (!computed) {
+ computed = Standard_True;
+ if(!derived) {
+ ThePSurfaceTool::D1(SURF, u, v, pntsol, d1u, d1v);
+ derived = Standard_True;
+ }
+
+ tgdu = gradient.Dot(d1v);
+ tgdv = -gradient.Dot(d1u);
+
+ gp_Vec NormPSurf = d1u ^ d1v;
+ gp_Vec NormISurf = d1u_isurf ^ d1v_isurf;
+ NormPSurf.Normalize();
+ NormISurf.Normalize();
+#ifdef DRAW
+ Standard_Real theAngle = NormPSurf.Angle(NormISurf);
+#endif
+ gp_Vec CrossProd = NormPSurf ^ NormISurf;
+ Standard_Real CrossProdSqMagn = CrossProd.SquareMagnitude();
+
+#ifdef DRAW
+ cout<<"Angle = "<<theAngle<<endl;
+ cout<<"CrossProdSqMagn = "<<CrossProdSqMagn<<endl;
+#endif
+
+ tangent = (CrossProdSqMagn <= TolCrossProd);
+
+#ifdef DRAW
+ if (tangent)
+ {
+ Standard_Real SumSquare = tgdu * tgdu + tgdv * tgdv;
+ gp_Vec NormSURF = d1u ^ d1v;
+ cout<<"Tangent !!!"<<endl;
+ cout<<"SumSquare = "<<SumSquare<<endl;
+ cout<<"u = "<<u<<", v = "<<v<<endl;
+ cout<<"pnt = "<<pntsol.X()<<" "<<pntsol.Y()<<" "<<pntsol.Z()<<endl;
+ }
+#endif
+
+ if(!tangent) {
+ d3d.SetLinearForm(tgdu,d1u,tgdv,d1v);
+ d2d = gp_Dir2d(tgdu, tgdv);
+ if (d3d.Magnitude() <= Tolpetit) { // jag
+ tangent = Standard_True;
+ }
+#ifdef DRAW
+ gp_Vec NormSURF = d1u ^ d1v;
+ cout<<"u = "<<u<<", v = "<<v<<endl;
+ cout<<"pnt = "<<pntsol.X()<<" "<<pntsol.Y()<<" "<<pntsol.Z()<<endl;
+ cout<<"d3d = "<<d3d.X()<<" "<<d3d.Y()<<" "<<d3d.Z()<<endl;
+#endif
+ }
+ }
+ return tangent;
+}
+
+Standard_Boolean IntImp_ZerImpFunc::DerivativesAndNormalOnPSurf(gp_Vec& D1U,
+ gp_Vec& D1V,
+ gp_Vec& Normal,
+ gp_Vec& D2U,
+ gp_Vec& D2V,
+ gp_Vec& D2UV)
+{
+ ThePSurfaceTool::D2(SURF, u, v, pntsol, D1U, D1V, D2U, D2V, D2UV);
+ Normal = D1U ^ D1V;
+ Standard_Real theMagnitude = Normal.Magnitude();
+ if (theMagnitude <= gp::Resolution())
+ return Standard_False;
+ else
+ Normal /= theMagnitude;
+
+ return Standard_True;
+}
+
+Standard_Boolean IntImp_ZerImpFunc::DerivativesAndNormalOnISurf(gp_Vec& D1U,
+ gp_Vec& D1V,
+ gp_Vec& Normal,
+ gp_Vec& D2U,
+ gp_Vec& D2V,
+ gp_Vec& D2UV) const
+{
+ TheISurfaceTool::D2(FUNC, pntsol, D1U, D1V, D2U, D2V, D2UV);
+ Normal = D1U ^ D1V;
+ Standard_Real theMagnitude = Normal.Magnitude();
+ if (theMagnitude <= gp::Resolution())
+ return Standard_False;
+ else
+ Normal /= theMagnitude;
+
+ return Standard_True;
+}
+
#undef EpsAng
#undef EpsAng2
#undef Tolpetit
return d2d;
}
+inline Standard_Real IntImp_ZerImpFunc::SquareTangentError() const
+{
+ return (tgdu * tgdu + tgdv * tgdv);
+}
+
inline const ThePSurface& IntImp_ZerImpFunc::PSurface() const
{
return (*((ThePSurface *)(surf)));
{
Standard_Boolean reversed, procf, procl, dofirst, dolast;
Standard_Integer indfirst = 0, indlast = 0, ind2, NbSegm;
- Standard_Integer NbPointIns, NbPointRst, Nblines, Nbpts, NbPointDep;
+ Standard_Integer NbPointIns, NbPointsTang, NbPointRst, Nblines, Nbpts, NbPointDep;
Standard_Real U1,V1,U2,V2,paramf,paraml,currentparam;
IntPatch_TheSegmentOfTheSOnBounds thesegm;
//
IntSurf_SequenceOfPathPoint seqpdep;
IntSurf_SequenceOfInteriorPoint seqpins;
+ IntSurf_SequenceOfInteriorPoint seqptang;
//
NbPointRst = solrst.NbPoints();
TColStd_Array1OfInteger Destination(1,NbPointRst+1); Destination.Init(0);
for (Standard_Integer i=1; i <= NbPointIns; i++) {
seqpins.Append(solins.Value(i));
}
+ NbPointsTang = solins.NbTangentPoints();
+ for (Standard_Integer i = 1; i <= NbPointsTang; i++)
+ seqptang.Append(solins.TangentPoint(i));
}
//
NbPointDep=seqpdep.Length();
if (NbPointDep || NbPointIns) {
IntPatch_TheIWalking iwalk(TolTang,Fleche,Pas);
if (!reversed) {
- iwalk.Perform(seqpdep,seqpins,Func,Surf2);
+ iwalk.Perform(seqpdep,seqpins,seqptang,Func,Surf2);
}
else {
- iwalk.Perform(seqpdep,seqpins,Func,Surf1,Standard_True);
+ iwalk.Perform(seqpdep,seqpins,seqptang,Func,Surf1,Standard_True);
}
if(!iwalk.IsDone()) {
return;
void SetTangencyAtEnd (const Standard_Boolean IsTangent);
+ void SetTangency (const Standard_Boolean IsTangency) ;
+
Standard_Integer NbPoints() const;
const IntSurf_PntOn2S& Value (const Standard_Integer Index) const;
Standard_Boolean IsTangentAtBegining() const;
Standard_Boolean IsTangentAtEnd() const;
+
+ Standard_Boolean IsTangency() const;
gp_Vec vcttg;
Standard_Boolean istgtbeg;
Standard_Boolean istgtend;
+ Standard_Boolean istangency;
};
void SetTolerance (const Standard_Real Epsilon, const Standard_Real Deflection, const Standard_Real Step);
- Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, IntPatch_TheSurfFunction& Func, const Handle(Adaptor3d_HSurface)& S, const Standard_Boolean Reversed = Standard_False);
+ Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, const IntSurf_SequenceOfInteriorPoint& Pnts3, IntPatch_TheSurfFunction& Func, const Handle(Adaptor3d_HSurface)& S, const Standard_Boolean Reversed = Standard_False) ;
Standard_EXPORT void Perform (const IntSurf_SequenceOfPathPoint& Pnts1, IntPatch_TheSurfFunction& Func, const Handle(Adaptor3d_HSurface)& S, const Standard_Boolean Reversed = Standard_False);
Standard_EXPORT Standard_Boolean TestArretPassage (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const math_Vector& UV, const Standard_Integer Index, Standard_Integer& Irang);
- Standard_EXPORT Standard_Boolean TestArretAjout (IntPatch_TheSurfFunction& Section, math_Vector& UV, Standard_Integer& Irang, IntSurf_PntOn2S& PSol);
+ Standard_EXPORT Standard_Boolean TestArretPassageTang (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const math_Vector& UV, const Standard_Integer Index, Standard_Integer& Irang) ;
+
+ Standard_EXPORT Standard_Boolean TestArretAjout (IntPatch_TheSurfFunction& Section, math_Vector& UV, Standard_Integer& Irang, IntSurf_PntOn2S& PSol, Standard_Boolean& OnPrevTangency) ;
Standard_EXPORT void TestArretCadre (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const Handle(IntPatch_TheIWLineOfTheIWalking)& Line, IntPatch_TheSurfFunction& Section, math_Vector& UV, Standard_Integer& Irang);
- Standard_EXPORT IntWalk_StatusDeflection TestDeflection (IntPatch_TheSurfFunction& Section, const Standard_Boolean Finished, const math_Vector& UV, const IntWalk_StatusDeflection StatusPrecedent, Standard_Integer& NbDivision, Standard_Real& Step, const Standard_Integer StepSign);
+ Standard_EXPORT IntWalk_StatusDeflection TestDeflection (IntPatch_TheSurfFunction& Section, const Standard_Boolean Finished, const math_Vector& UV, const IntWalk_StatusDeflection StatusPrecedent, Standard_Integer& NbDivision, Standard_Real& Step, const Standard_Integer StepSign, const Standard_Integer CurNbPoints, const Standard_Boolean ArretAjout, const Standard_Boolean OnPrevTangency) ;
Standard_EXPORT void ComputeOpenLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, IntPatch_TheSurfFunction& Section, Standard_Boolean& Rajout);
Standard_EXPORT void OpenLine (const Standard_Integer N, const IntSurf_PntOn2S& Psol, const IntSurf_SequenceOfPathPoint& Pnts1, IntPatch_TheSurfFunction& Section, const Handle(IntPatch_TheIWLineOfTheIWalking)& Line);
- Standard_EXPORT void ComputeCloseLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, IntPatch_TheSurfFunction& Section, Standard_Boolean& Rajout);
+ Standard_EXPORT void ComputeCloseLine (const TColStd_SequenceOfReal& Umult, const TColStd_SequenceOfReal& Vmult, const IntSurf_SequenceOfPathPoint& Pnts1, const IntSurf_SequenceOfInteriorPoint& Pnts2, const IntSurf_SequenceOfInteriorPoint& Pnts3, IntPatch_TheSurfFunction& Section, Standard_Boolean& Rajout) ;
Standard_EXPORT void AddPointInCurrentLine (const Standard_Integer N, const IntSurf_PathPoint& PathPnt, const Handle(IntPatch_TheIWLineOfTheIWalking)& CurrentLine) const;
Standard_EXPORT void MakeWalkingPoint (const Standard_Integer Case, const Standard_Real U, const Standard_Real V, IntPatch_TheSurfFunction& Section, IntSurf_PntOn2S& Psol);
- Standard_EXPORT void Clear();
+ Standard_EXPORT void FindExactCuspPoint (IntPatch_TheSurfFunction& Section, IntSurf_PntOn2S& Psol, const Standard_Integer PrevSignOfBcoeff, const Standard_Integer SignOfBcoeff) ;
+
+ Standard_EXPORT void FindExactTangentPoint (const Standard_Real TolTang, IntPatch_TheSurfFunction& Section, IntSurf_PntOn2S& Psol) ;
+
+ Standard_EXPORT Standard_Boolean ComputeDirOfTangentialIntersection (IntPatch_TheSurfFunction& Section, Standard_Integer& StepSign, Standard_Boolean& IsDiscriminantNull, Standard_Integer& SignOfBcoeff, gp_Vec& NewD3d, gp_Dir2d& NewD2d) ;
+
+ Standard_EXPORT void Clear() ;
Standard_Boolean reversed;
IntWalk_VectorOfWalkingData wd1;
IntWalk_VectorOfWalkingData wd2;
+ IntWalk_VectorOfWalkingData wd3;
IntWalk_VectorOfInteger nbMultiplicities;
Standard_Real Um;
Standard_Real UM;
IntSurf_PntOn2S previousPoint;
gp_Vec previousd3d;
gp_Dir2d previousd2d;
+ Standard_Boolean IsTangentialIntersection;
TColStd_SequenceOfInteger seqAjout;
IntPatch_SequenceOfIWLineOfTheIWalking lines;
Standard_Integer NbPoints() const;
- const IntSurf_InteriorPoint& Value (const Standard_Integer Index) const;
+ Standard_Integer NbTangentPoints() const;
+
+ const IntSurf_InteriorPoint& Value (const Standard_Integer Index) const;
+
+ const IntSurf_InteriorPoint& TangentPoint (const Standard_Integer Index) const;
Standard_Boolean done;
IntSurf_SequenceOfInteriorPoint list;
+ IntSurf_SequenceOfInteriorPoint myTangentPoints;
};
Standard_EXPORT Standard_Boolean IsTangent();
+ Standard_EXPORT Standard_Boolean IsTangentSmooth() ;
+
const gp_Vec& Direction3d();
const gp_Dir2d& Direction2d();
+ Standard_EXPORT Standard_Boolean DerivativesAndNormalOnPSurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) ;
+
+ Standard_EXPORT Standard_Boolean DerivativesAndNormalOnISurf (gp_Vec& D1U, gp_Vec& D1V, gp_Vec& Normal, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) const;
+
+ Standard_Real SquareTangentError() const;
+
const Handle(Adaptor3d_HSurface)& PSurface() const;
const IntSurf_Quadric& ISurface() const;
Standard_Real tgdu;
Standard_Real tgdv;
gp_Vec gradient;
+ gp_Vec d1u_isurf;
+ gp_Vec d1v_isurf;
Standard_Boolean derived;
gp_Vec d1u;
gp_Vec d1v;
#include <TopAbs_State.hxx>
+#ifdef DRAW
+#include <DrawTrSurf.hxx>
+#endif
+
+
IntStart_SearchInside::IntStart_SearchInside (): done(Standard_False)
{}
done = Standard_False;
list.Clear();
+ myTangentPoints.Clear();
Standard_Real aBinf[2], aBsup[2], aUVap[2], atoler[2];
math_Vector Binf(aBinf,1,2), Bsup(aBsup,1,2), UVap(aUVap,1,2), toler(atoler,1,2);
gp_Pnt psol;
//-- P I I I I I I I I
//--
+#ifdef DRAW
+ char* name = new char[100];
+#endif
+
+ gp_Vec NullDir(0.,0.,0.);
+ gp_Vec2d NullDir2d(0.,0.);
for (i=1; i <= Nbsample+12; i++) {
gp_Pnt2d s2d;
Rsnld.Perform(Func,UVap,Binf,Bsup);
if (Rsnld.IsDone()) {
if (Abs(Func.Root()) <= Tol) {
+ psol = Func.Point();
+ Rsnld.Root(UVap);
if (!Func.IsTangent()) {
- psol = Func.Point();
- Rsnld.Root(UVap);
// On regarde si le point trouve est bien un nouveau point.
j = 1;
nbpt = list.Length();
list.Append(IntSurf_InteriorPoint(psol,UVap(1),UVap(2),
Func.Direction3d(),
Func.Direction2d()));
+#ifdef DRAW
+ gp_Pnt2d p2dsol(UVap(1),UVap(2));
+ sprintf(name, "pp%d", list.Length());
+ DrawTrSurf::Set(name, p2dsol);
+ sprintf(name, "p%d", list.Length());
+ DrawTrSurf::Set(name, psol);
+#endif
}
}
- }
+ }//if (!Func.IsTangent())
+ else //tangent point
+ {
+ Standard_Boolean IsNewTangentPoint = Standard_True;
+ for (j = 1; j <= myTangentPoints.Length(); j++)
+ {
+ const IntSurf_InteriorPoint& IPj = myTangentPoints(j);
+ const gp_Pnt& Pj = IPj.Value();
+ if ( (Abs(Pj.X()-psol.X()) <= Epsilon)
+ && (Abs(Pj.Y()-psol.Y()) <= Epsilon)
+ && (Abs(Pj.Z()-psol.Z()) <= Epsilon)
+ && (Abs(UVap(1)-IPj.UParameter()) <= toler1)
+ && (Abs(UVap(2)-IPj.VParameter()) <= toler2) )
+ {
+ IsNewTangentPoint = Standard_False;
+ break;
+ }
+ }
+
+ if (IsNewTangentPoint)
+ {
+ situ = T->Classify(gp_Pnt2d(UVap(1),UVap(2)),
+ Maxtoler1toler2,Standard_False); //-- ,Standard_False pour ne pas recadrer on Periodic
+ if (situ == TopAbs_IN) {
+ myTangentPoints.Append(IntSurf_InteriorPoint(psol,UVap(1),UVap(2),
+ NullDir, NullDir2d));
+#ifdef DRAW
+ gp_Pnt2d p2dsol(UVap(1),UVap(2));
+ sprintf(name, "tpp%d", myTangentPoints.Length());
+ DrawTrSurf::Set(name, p2dsol);
+ sprintf(name, "tp%d", myTangentPoints.Length());
+ DrawTrSurf::Set(name, psol);
+ cout<<myTangentPoints.Length()<<" tangent point :"<<endl;
+ cout<<"U = "<<UVap(1)<<", V = "<<UVap(2)<<endl;
+ //cout<<"Dist = "<<aRootVal<<endl<<endl;
+#endif
+ }
+ }
+ }
}
}
}
{
done = Standard_False;
list.Clear();
+ myTangentPoints.Clear();
math_Vector Binf(1,2), Bsup(1,2), toler(1,2);
Binf(1) = ThePSurfaceTool::FirstUParameter(PS);
return list.Length();
}
+inline Standard_Integer IntStart_SearchInside::NbTangentPoints () const {
+
+ if (!done) {StdFail_NotDone::Raise();}
+ return myTangentPoints.Length();
+}
+
inline const IntSurf_InteriorPoint& IntStart_SearchInside::Value
(const Standard_Integer Index) const
return list.Value(Index);
}
+inline const IntSurf_InteriorPoint& IntStart_SearchInside::TangentPoint
+ (const Standard_Integer Index) const
+
+{
+ if (!done) {StdFail_NotDone::Raise();}
+ return myTangentPoints.Value(Index);
+}
}
}
+gp_Pnt2d IntSurf_PntOn2S::ValueOnSurface(const Standard_Boolean OnFirst) const
+{
+ gp_Pnt2d PointOnSurf;
+ if (OnFirst)
+ PointOnSurf.SetCoord(u1,v1);
+ else
+ PointOnSurf.SetCoord(u2,v2);
+ return PointOnSurf;
+}
+
+void IntSurf_PntOn2S::ParametersOnSurface(const Standard_Boolean OnFirst,
+ Standard_Real& U,
+ Standard_Real& V) const
+{
+ if (OnFirst) {
+ U = u1;
+ V = v1;
+ }
+ else {
+ U = u2;
+ V = v2;
+ }
+}
Standard_Boolean IntSurf_PntOn2S::IsSame( const IntSurf_PntOn2S& theOterPoint,
const Standard_Real theTol3D,
#include <Standard_Real.hxx>
#include <Standard_Boolean.hxx>
class gp_Pnt;
+class gp_Pnt2d;
//! This class defines the geometric informations
void SetValue (const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2);
//! Returns the point in 3d space.
- const gp_Pnt& Value() const;
+ const gp_Pnt& Value() const;
+
+ //! Returns the point in 2d space of one of the surfaces.
+ Standard_EXPORT gp_Pnt2d ValueOnSurface (const Standard_Boolean OnFirst) const;
//! Returns the parameters of the point on the first surface.
void ParametersOnS1 (Standard_Real& U1, Standard_Real& V1) const;
//! Returns the parameters of the point on the second surface.
- void ParametersOnS2 (Standard_Real& U2, Standard_Real& V2) const;
+ void ParametersOnS2 (Standard_Real& U2, Standard_Real& V2) const;
+
+ //! Returns the parameters of the point in the
+ //! parametric space of one of the surface.
+ Standard_EXPORT void ParametersOnSurface (const Standard_Boolean OnFirst, Standard_Real& U, Standard_Real& V) const;
//! Returns the parameters of the point on both surfaces.
void Parameters (Standard_Real& U1, Standard_Real& V1, Standard_Real& U2, Standard_Real& V2) const;
//! Returns TRUE if 2D- and 3D-coordinates of theOterPoint are equal to
//! corresponding coordinates of me (with given tolerance).
//! If theTol2D == 0.0 we will compare 3D-points only.
- Standard_EXPORT Standard_Boolean IsSame (const IntSurf_PntOn2S& theOterPoint, const Standard_Real theTol3D = 0.0, const Standard_Real theTol2D = 0.0) const;
+ Standard_EXPORT Standard_Boolean IsSame (const IntSurf_PntOn2S& theOtherPoint, const Standard_Real theTol3D = 0.0, const Standard_Real theTol2D = 0.0) const;
#include <IntSurf_Quadric.hxx>
#include <IntSurf_QuadricTool.hxx>
+void IntSurf_QuadricTool::ValueAndGradient (const IntSurf_Quadric& Quad,
+ const Standard_Real X,
+ const Standard_Real Y,
+ const Standard_Real Z,
+ Standard_Real& Val,
+ gp_Vec& Grad,
+ gp_Vec& D1U,
+ gp_Vec& D1V)
+{
+ gp_Pnt thePoint(X,Y,Z);
+ Quad.ValAndGrad(thePoint, Val, Grad);
+ Standard_Real U, V;
+ Quad.Parameters(thePoint, U, V);
+ Quad.D1(U, V, thePoint, D1U, D1V);
+}
+
+void IntSurf_QuadricTool::D2 (const IntSurf_Quadric& Quad,
+ const gp_Pnt& aPoint,
+ gp_Vec& D1U,
+ gp_Vec& D1V,
+ gp_Vec& D2U,
+ gp_Vec& D2V,
+ gp_Vec& D2UV)
+{
+ Standard_Real U, V;
+ Quad.Parameters(aPoint, U, V);
+ gp_Pnt thePoint;
+ Quad.D1(U, V, thePoint, D1U, D1V);
+ D2U = Quad.DN(U, V, 2, 0);
+ D2V = Quad.DN(U, V, 0, 2);
+ D2UV = Quad.DN(U, V, 1, 1);
+}
+
Standard_Real IntSurf_QuadricTool::Tolerance (const IntSurf_Quadric& Q) {
switch (Q.TypeQuadric()) {
case GeomAbs_Sphere:
#include <Standard_Real.hxx>
class IntSurf_Quadric;
class gp_Vec;
+class gp_Pnt;
//! This class provides a tool on a quadric that can be
static void Gradient (const IntSurf_Quadric& Quad, const Standard_Real X, const Standard_Real Y, const Standard_Real Z, gp_Vec& V);
//! Returns the value and the gradient.
- static void ValueAndGradient (const IntSurf_Quadric& Quad, const Standard_Real X, const Standard_Real Y, const Standard_Real Z, Standard_Real& Val, gp_Vec& Grad);
+ Standard_EXPORT static void ValueAndGradient (const IntSurf_Quadric& Quad, const Standard_Real X, const Standard_Real Y, const Standard_Real Z, Standard_Real& Val, gp_Vec& Grad, gp_Vec& D1U_ISurf, gp_Vec& D1V_ISurf) ;
+
+ //! Returns all first and second derivatives.
+ Standard_EXPORT static void D2 (const IntSurf_Quadric& Quad, const gp_Pnt& Point, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) ;
//! returns the tolerance of the zero of the implicit function
Standard_EXPORT static Standard_Real Tolerance (const IntSurf_Quadric& Quad);
V = Quad.Gradient(gp_Pnt(X,Y,Z));
}
-
-inline void IntSurf_QuadricTool::ValueAndGradient (const IntSurf_Quadric& Quad,
- const Standard_Real X,
- const Standard_Real Y,
- const Standard_Real Z,
- Standard_Real& Val,
- gp_Vec& V) {
-
- Quad.ValAndGrad(gp_Pnt(X,Y,Z),Val,V);
-}
-
-
hasFirst (Standard_False), hasLast (Standard_False),
firstIndex (-1), lastIndex (-1),
indextg (-1),
- istgtbeg (Standard_False), istgtend (Standard_False)
+ istgtbeg (Standard_False), istgtend (Standard_False),
+ istangency (Standard_False)
{
}
istgtend = IsTangent;
}
+inline void IntWalk_IWLine::SetTangency
+ (const Standard_Boolean IsTangency) {
+
+ istangency = IsTangency;
+}
+
inline const gp_Vec& IntWalk_IWLine::TangentVector
(Standard_Integer& Index) const {
//-- if(istgtend == Standard_False && istgtbeg == Standard_False) {
return istgtend;
}
+inline Standard_Boolean IntWalk_IWLine::IsTangency () const {
+
+ return istangency;
+}
#include <NCollection_IncAllocator.hxx>
#include <Precision.hxx>
+#include <TColStd_Array1OfBoolean.hxx>
IntWalk_IWalking::IntWalk_IWalking (const Standard_Real Epsilon,
const Standard_Real Deflection,
epsilon(Epsilon*Epsilon),
wd1 (IntWalk_VectorOfWalkingData::allocator_type (new NCollection_IncAllocator)),
wd2 (wd1.get_allocator()),
- nbMultiplicities (wd1.get_allocator())
+ wd3 (wd2.get_allocator()),
+ nbMultiplicities (wd1.get_allocator()),
+ IsTangentialIntersection(Standard_False)
{
}
{
wd1.clear();
wd2.clear();
+ wd3.clear();
IntWalk_WalkingData aDummy;
aDummy.etat = -10;
aDummy.ustart = aDummy.vstart = 0.;
wd1.push_back (aDummy);
wd2.push_back (aDummy);
+ wd3.push_back (aDummy);
nbMultiplicities.clear();
nbMultiplicities.push_back (-1);
//
void IntWalk_IWalking::Perform(const ThePOPIterator& Pnts1,
const ThePOLIterator& Pnts2,
+ const ThePOLIterator& Pnts3,
TheIWFunction& Func,
const ThePSurface& Caro,
const Standard_Boolean Reversed)
Standard_Boolean Rajout = Standard_False;
Standard_Integer nbPnts1 = Pnts1.Length();
Standard_Integer nbPnts2 = Pnts2.Length();
+ Standard_Integer nbPnts3 = Pnts3.Length();
Standard_Real U,V;
Clear();
wd2.push_back (aWD2);
}
+ wd3.reserve (nbPnts3);
+ for (I = 1; I <= nbPnts3; I++) {
+ IntWalk_WalkingData aWD3;
+ aWD3.etat = 13;
+ ThePointOfLoopTool::Value2d(Pnts3.Value(I), aWD3.ustart, aWD3.vstart);
+ wd3.push_back (aWD3);
+ }
+
tolerance(1) = ThePSurfaceTool::UResolution(Caro,Precision::Confusion());
tolerance(2) = ThePSurfaceTool::VResolution(Caro,Precision::Confusion());
// calculation of all open lines
if (nbPnts1 != 0)
- ComputeOpenLine(Umult,Vmult,Pnts1,Func,Rajout);
-
+ ComputeOpenLine(Umult,Vmult,Pnts1,Func,Rajout);
// calculation of all closed lines
- if (nbPnts2 != 0)
- ComputeCloseLine(Umult,Vmult,Pnts1,Pnts2,Func,Rajout);
-
+ if (nbPnts2 != 0 || nbPnts3 != 0)
+ ComputeCloseLine(Umult,Vmult,Pnts1,Pnts2,Pnts3,Func,Rajout);
for (I = 1; I <= nbPnts1; I++) {
if (wd1[I].etat >0) seqSingle.Append(Pnts1(I));
}
+
+ //Split non-tangency lines by extremities of tangency lines
+ IntSurf_SequenceOfPntOn2S EndsOfTangencies;
+ Standard_Integer i, j, k;
+ const Standard_Real TolSq = Precision::Confusion() * Precision::Confusion();
+ for (i = 1; i <= lines.Length(); i++)
+ if (lines(i)->IsTangency())
+ {
+ const IntSurf_PntOn2S& anEndPointOn2S = lines(i)->Value(1);
+ const gp_Pnt& anEndPnt = anEndPointOn2S.Value();
+ Standard_Boolean exists = Standard_False;
+ for (j = 1; j <= EndsOfTangencies.Length(); j++)
+ {
+ const gp_Pnt& anEndOfTang = EndsOfTangencies(j).Value();
+ if (anEndOfTang.SquareDistance(anEndPnt) <= TolSq)
+ {
+ exists = Standard_True;
+ break;
+ }
+ }
+ if (!exists)
+ EndsOfTangencies.Append(anEndPointOn2S);
+ if (!lines(i)->IsClosed())
+ {
+ const IntSurf_PntOn2S& anEndPointOn2S = lines(i)->Value(lines(i)->NbPoints());
+ const gp_Pnt& anEndPnt = anEndPointOn2S.Value();
+ exists = Standard_False;
+ for (j = 1; j <= EndsOfTangencies.Length(); j++)
+ {
+ const gp_Pnt& anEndOfTang = EndsOfTangencies(j).Value();
+ if (anEndOfTang.SquareDistance(anEndPnt) <= TolSq)
+ {
+ exists = Standard_True;
+ break;
+ }
+ }
+ if (!exists)
+ EndsOfTangencies.Append(anEndPointOn2S);
+ }
+ }
+
+ if (!EndsOfTangencies.IsEmpty())
+ {
+ TColStd_Array1OfBoolean SplitFlags(1, EndsOfTangencies.Length());
+ SplitFlags.Init(Standard_False);
+
+ for (;;)
+ {
+ for (i = 1; i <= lines.Length(); i++)
+ if (!lines(i)->IsTangency())
+ {
+ Standard_Boolean IsSplit = Standard_False;
+ for (j = 1; j <= EndsOfTangencies.Length(); j++)
+ {
+ if (SplitFlags(j))
+ continue;
+ //gp_Pnt2d endoftang = EndsOfTangencies(j).ValueOnSurface(reversed);
+ gp_Pnt endoftang = EndsOfTangencies(j).Value();
+ for (k = 2; k < lines(i)->NbPoints()-1; k++)
+ {
+ const IntSurf_PntOn2S& P1 = lines(i)->Value(k);
+ const IntSurf_PntOn2S& P2 = lines(i)->Value(k+1);
+ //gp_Pnt2d pt1 = P1.ValueOnSurface(reversed);
+ //gp_Pnt2d pt2 = P2.ValueOnSurface(reversed);
+ const gp_Pnt& pt1 = P1.Value();
+ const gp_Pnt& pt2 = P2.Value();
+ //gp_Vec2d V1(endoftang, pt1);
+ //gp_Vec2d V2(endoftang, pt2);
+ gp_Vec V1(endoftang, pt1);
+ gp_Vec V2(endoftang, pt2);
+ Standard_Real ScalProd = V1 * V2;
+ if (ScalProd < 0.)
+ {
+ SplitFlags(j) = Standard_True;
+ Standard_Boolean ToRemoveFirstPnt = Standard_False, ToRemoveSecondPnt = Standard_False;
+ /*
+ Standard_Real Dist = pt1.Distance(pt2);
+ Standard_Real DistToFirst = endoftang.Distance(pt1);
+ Standard_Real DistToSecond = endoftang.Distance(pt2);
+ if (DistToFirst < Max(2.*Precision::Confusion(), 0.5*Dist))
+ ToRemoveFirstPnt = Standard_True;
+ if (DistToSecond < Max(2.*Precision::Confusion(), 0.5*Dist))
+ ToRemoveSecondPnt = Standard_True;
+ */
+ Standard_Real SqDist = pt1.SquareDistance(pt2);
+ Standard_Real SqDistToFirst = endoftang.SquareDistance(pt1);
+ Standard_Real SqDistToSecond = endoftang.SquareDistance(pt2);
+ if (SqDistToFirst < Max(4.*TolSq, 0.25*SqDist))
+ ToRemoveFirstPnt = Standard_True;
+ if (SqDistToSecond < Max(4.*TolSq, 0.25*SqDist))
+ ToRemoveSecondPnt = Standard_True;
+ Handle(IntWalk_TheIWLine) aNewLine = new IntWalk_TheIWLine (new NCollection_IncAllocator());
+ aNewLine->SetTangencyAtBegining(Standard_True);
+ aNewLine->AddStatusFirst(Standard_False, Standard_False);
+ aNewLine->AddPoint(EndsOfTangencies(j));
+ for (Standard_Integer kk = (ToRemoveSecondPnt)? k+2 : k+1;
+ kk <= lines(i)->NbPoints(); kk++)
+ aNewLine->AddPoint(lines(i)->Value(kk));
+ if (lines(i)->HasLastPoint())
+ aNewLine->AddStatusLast(Standard_True, lines(i)->LastPointIndex(), lines(i)->LastPoint());
+ else
+ aNewLine->AddStatusLast(Standard_False);
+ aNewLine->SetTangencyAtEnd(lines(i)->IsTangentAtEnd());
+ lines.Append(aNewLine);
+ lines(i)->Cut((ToRemoveFirstPnt)? k : k+1);
+ lines(i)->AddPoint(EndsOfTangencies(j));
+ lines(i)->AddStatusLast(Standard_False);
+ lines(i)->SetTangencyAtEnd(Standard_True);
+ IsSplit = Standard_True;
+ break;
+ }
+ }
+ if (IsSplit)
+ break;
+ }
+ if (IsSplit)
+ break;
+ }
+ if (i > lines.Length())
+ break;
+ }
+ }
+ ///////////////////////////////////////////////////////////
+
done = Standard_True;
}
previousPoint.ParametersOnS1(Up,Vp);
}
- for (size_t i = 1; i < wd2.size(); i++) {
- if (wd2[i].etat > 0) {
- // debug jag 05.04.94
-
-// if ((Up-wd2[i].ustart)*(UV(1)-wd2[i].ustart) +
-// (Vp-wd2[i].vstart)*(UV(2)-wd2[i].vstart) <= 0)
- Utest = wd2[i].ustart;
- Vtest = wd2[i].vstart;
-
- Du = UV(1)-Utest;
- Dv = UV(2)-Vtest;
- Dup = Up - Utest;
- Dvp = Vp - Vtest;
-
-//-- lbr le 30 oct 97
-
- //IFV for OCC20285
-
- if ((Abs(Du) < tolu2 && Abs(Dv) < tolv2) ||
- (Abs(Dup) < tolu2 && Abs(Dvp) < tolv2)) {
-
- wd2[i].etat = -wd2[i].etat;
- }
- else {
- Standard_Real DDu = (UV(1)-Up);
- Standard_Real DDv = (UV(2)-Vp);
- Standard_Real DDD = DDu*DDu+DDv*DDv;
- Standard_Real DD1 = Du*Du+Dv*Dv;
- if(DD1<=DDD) {
- Standard_Real DD2 = Dup*Dup+Dvp*Dvp;
- if(DD2<=DDD && ((Du*Dup) + (Dv*Dvp*tolu/tolv) <= 0.)) {
- wd2[i].etat = -wd2[i].etat;
- }
- }
+ IntWalk_VectorOfWalkingData* wdata [2] = {&wd2, &wd3};
+ for (Standard_Integer ind = 0; ind < 2; ind++)
+ for (size_t i = 1; i < wdata[ind]->size(); i++) {
+ if ((*(wdata[ind]))[i].etat > 0) {
+ // debug jag 05.04.94
+
+ // if ((Up-wd2[i].ustart)*(UV(1)-wd2[i].ustart) +
+ // (Vp-wd2[i].vstart)*(UV(2)-wd2[i].vstart) <= 0)
+ Utest = (*(wdata[ind]))[i].ustart;
+ Vtest = (*(wdata[ind]))[i].vstart;
+
+ Du = UV(1)-Utest;
+ Dv = UV(2)-Vtest;
+ Dup = Up - Utest;
+ Dvp = Vp - Vtest;
+
+ //-- lbr le 30 oct 97
+
+ //IFV for OCC20285
+
+ if ((Abs(Du) < tolu2 && Abs(Dv) < tolv2) ||
+ (Abs(Dup) < tolu2 && Abs(Dvp) < tolv2)) {
+
+ (*(wdata[ind]))[i].etat = -(*(wdata[ind]))[i].etat;
+ }
+ else {
+ Standard_Real DDu = (UV(1)-Up);
+ Standard_Real DDv = (UV(2)-Vp);
+ Standard_Real DDD = DDu*DDu+DDv*DDv;
+ Standard_Real DD1 = Du*Du+Dv*Dv;
+ if(DD1<=DDD) {
+ Standard_Real DD2 = Dup*Dup+Dvp*Dvp;
+ if(DD2<=DDD && ((Du*Dup) + (Dv*Dvp*tolu/tolv) <= 0.)) {
+ (*(wdata[ind]))[i].etat = -(*(wdata[ind]))[i].etat;
+ }
+ }
+ }
}
}
- }
// stop test on point given at input and not yet processed
}
}
}
+ for (k = 1; k < (int)wd3.size(); k++) {
+ if (wd3[k].etat > 0) {
+ Utest = wd3[k].ustart;
+ Vtest = wd3[k].vstart;
+
+ Utest/=deltau;
+ Vtest/=deltav;
+
+ Standard_Real UV1mUtest=UV1-Utest;
+ Standard_Real UV2mVtest=UV2-Vtest;
+ if( (UV1mUtest<tolu2 && UV1mUtest>-tolu2)
+ && (UV2mVtest<tolv2 && UV2mVtest>-tolv2)) {
+
+ wd3[k].etat = -wd3[k].etat; //-- mark the point as a crossing point
+ }
+ else {
+ Standard_Real UpmUtest = (Up-Utest);
+ Standard_Real VpmVtest = (Vp-Vtest);
+ Standard_Real dPreviousStart = (UpmUtest)*(UpmUtest)+(VpmVtest)*(VpmVtest);
+ Standard_Real dCurrentStart = UV1mUtest * UV1mUtest + UV2mVtest * UV2mVtest;
+
+ Scal=(UpmUtest)*(UV1mUtest)+(VpmVtest)*(UV2mVtest);
+ if( (Abs(UpmUtest)<tolu && Abs(VpmVtest)<tolv)) {
+
+ wd3[k].etat = -wd3[k].etat;
+ }
+ else if(Scal<0 && (dPreviousStart+dCurrentStart < dPreviousCurrent)) {
+
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ }
+ else {
+ if(dPreviousStart < dPreviousCurrent*0.25) {
+
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ //-- cout<<"**** etat2 : ("<<k<<")"<<endl;
+ }
+ else {
+ if(dCurrentStart < dPreviousCurrent*0.25) {
+ //-- cout<<"***** etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ }
+ else {
+ Standard_Real UMidUtest = 0.5*(UV1+Up)-Utest;
+ Standard_Real VMidVtest = 0.5*(UV2+Vp)-Vtest;
+ Standard_Real dMiddleStart = UMidUtest*UMidUtest + VMidVtest*VMidVtest;
+
+ if(dMiddleStart < dPreviousCurrent*0.5) {
+ //-- cout<<"*********** etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ }
+ }
+ }
+ }
+ }
+ }
+ }
// crossing test on crossing points.
return Arrive;
}
+Standard_Boolean IntWalk_IWalking::TestArretPassageTang
+ (const TColStd_SequenceOfReal& Umult,
+ const TColStd_SequenceOfReal& Vmult,
+ const math_Vector& UV,
+ const Standard_Integer Index,
+ Standard_Integer& Irang)
+{
+// Umult, Vmult : table of stop (or crossing) points on border, here
+// only crossing points are taken into account.
+// UV : the current point.
+// Index : index of the start point in uvstart2 of the current line
+// (this is an interior point).
+// Irang : at output : gives the index of the point passing in uvstart1 or 0.
+// consider that there is risk to cross only one crossing point.
+
+// test of stop for a CLOSED intersection line.
+// 1) test of crossing on all interior points.
+// 2) test of crossing on all crossing points.
+
+ Standard_Real Up, Vp, Scal;
+ Standard_Boolean Arrive = Standard_False;
+ Standard_Integer N, k, i;
+ Standard_Real Utest,Vtest;
+ Standard_Real tolu = tolerance(1);
+ Standard_Real tolv = tolerance(2);
+
+
+ // tests of stop and of crossing on all interior points.
+
+ if (!reversed) {
+ previousPoint.ParametersOnS2(Up,Vp);
+ }
+ else {
+ previousPoint.ParametersOnS1(Up,Vp);
+ }
+
+ Standard_Real UV1=UV(1);
+ Standard_Real UV2=UV(2);
+
+
+ //-- Put everything in one box 0 1 x 0 1
+ //-- actually it is necessary to carry out tests in 3D
+
+ Standard_Real deltau=UM-Um;
+ Standard_Real deltav=VM-Vm;
+
+ Up/=deltau; UV1/=deltau;
+ Vp/=deltav; UV2/=deltav;
+
+ tolu/=deltau;
+ tolv/=deltav;
+
+ Standard_Real tolu2=tolu+tolu;
+ Standard_Real tolv2=tolv+tolv;
+
+
+ Standard_Real dPreviousCurrent = (Up-UV1)*(Up-UV1)+(Vp-UV2)*(Vp-UV2);
+ for (k = 1; k < (int)wd3.size(); k++) {
+ if (wd3[k].etat > 0) {
+ Utest = wd3[k].ustart;
+ Vtest = wd3[k].vstart;
+
+ Utest/=deltau;
+ Vtest/=deltav;
+
+ Standard_Real UV1mUtest=UV1-Utest;
+ Standard_Real UV2mVtest=UV2-Vtest;
+ if( (UV1mUtest<tolu2 && UV1mUtest>-tolu2)
+ && (UV2mVtest<tolv2 && UV2mVtest>-tolv2)) {
+ if(Index!=k) {
+ //-- cout<<"* etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat; //-- mark the point as a crossing point
+ }
+ else { //-- Index == k
+ //-- cout<<"* Arrive"<<endl;
+ Arrive=Standard_True;
+ }
+ }
+ else {
+ Standard_Real UpmUtest = (Up-Utest);
+ Standard_Real VpmVtest = (Vp-Vtest);
+ Standard_Real dPreviousStart = (UpmUtest)*(UpmUtest)+(VpmVtest)*(VpmVtest);
+ Standard_Real dCurrentStart = UV1mUtest * UV1mUtest + UV2mVtest * UV2mVtest;
+
+ Scal=(UpmUtest)*(UV1mUtest)+(VpmVtest)*(UV2mVtest);
+ if( (Abs(UpmUtest)<tolu && Abs(VpmVtest)<tolv)) {
+ if(Index != k ) {
+ //-- cout<<"** etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat;
+ }
+ }
+ else if(Scal<0 && (dPreviousStart+dCurrentStart < dPreviousCurrent)) {
+ if (Index == k ) { // on a boucle.
+ Arrive = Standard_True;
+ //-- cout<<"** Arrive : k="<<k<<endl;
+ }
+ else {
+ //-- cout<<"*** etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ }
+ }
+ else if(k!=Index) {
+ if(dPreviousStart < dPreviousCurrent*0.25) {
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ //-- cout<<"**** etat2 : ("<<k<<")"<<endl;
+ }
+ else {
+ if(dCurrentStart < dPreviousCurrent*0.25) {
+ //-- cout<<"***** etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ }
+ else {
+ Standard_Real UMidUtest = 0.5*(UV1+Up)-Utest;
+ Standard_Real VMidVtest = 0.5*(UV2+Vp)-Vtest;
+ Standard_Real dMiddleStart = UMidUtest*UMidUtest + VMidVtest*VMidVtest;
+
+ if(dMiddleStart < dPreviousCurrent*0.5) {
+ //-- cout<<"*********** etat2 : ("<<k<<")"<<endl;
+ wd3[k].etat = -wd3[k].etat; // mark the point as a crossing point
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ // crossing test on crossing points.
+
+ Irang =0;
+ for (i = 1; i < (int)wd1.size(); i++) {
+ if (wd1[i].etat > 0 && wd1[i].etat < 11) { //test of crossing points
+ Utest = wd1[i].ustart;
+ Vtest = wd1[i].vstart;
+ Utest/=deltau;
+ Vtest/=deltav;
+
+ if (((Up-Utest) * (UV1-Utest) + (Vp-Vtest) * (UV2-Vtest) < 0) ||
+ (Abs(UV1-Utest) < tolu && Abs(UV2-Vtest) < tolv))
+ Irang = i;
+ else if (nbMultiplicities[i] > 0) {
+ N=0;
+ for (k = 1; k < i; k++) N = N + nbMultiplicities[k];
+ for (Standard_Integer j = N + 1; j <= N + nbMultiplicities[i]; j++) {
+ Standard_Real Umultj = Umult(j)/deltau;
+ Standard_Real Vmultj = Vmult(j)/deltav;
+ if (((Up-Umultj)*(UV1-Umultj) +
+ (Vp-Vmultj)*(UV2-Vmultj) < 0) ||
+ (Abs(UV1-Umultj) < tolu &&
+ Abs(UV2-Vmultj) < tolv)) {
+ Irang=i;
+ break;
+ }
+ }
+ }
+ }
+ }
+ return Arrive;
+}
Standard_Boolean IntWalk_IWalking::TestArretAjout
(TheIWFunction& sp,
math_Vector& UV,
Standard_Integer& Irang,
- IntSurf_PntOn2S& Psol)
+ IntSurf_PntOn2S& Psol,
+ Standard_Boolean& OnPrevTangency)
// test of stop on added points
// these are the points on the natural biorder that were not given at input
(Abs(UV(1)-U1) < tolerance(1) &&
Abs(UV(2)-V1) < tolerance(2))) {
//jag 940615 Irang= -Abs(Irang);
- Arrive = Standard_True;
+ Arrive = Standard_True;
+ OnPrevTangency = Line->IsTangency();
UV(1) = U1;
UV(2) = V1;
Standard_Real abidF[1], abidD[1][2];
Standard_Integer I, N;
Standard_Real aBornInf[2], aBornSup[2], aUVap[2];
math_Vector BornInf(aBornInf,1,2), BornSup(aBornSup,1,2), UVap(aUVap,1,2);
- Standard_Real PasC, PasCu, PasCv;
+ Standard_Real PasC, PasCu, PasCv; //PasSav;
Standard_Boolean Arrive; // shows if the line ends
Standard_Boolean Cadre; // shows if one is on border of the domain
Standard_Boolean ArretAjout; //shows if one is on added point
+ Standard_Boolean OnPrevTangency; //shows if one is on added point of tangent line
IntSurf_PntOn2S Psol;
Handle(IntWalk_TheIWLine) CurrentLine; // line under construction
Standard_Boolean Tgtend;
// number of divisions of step for each section
Standard_Integer StepSign;
+ Standard_Integer StepSignTangent;
+ Standard_Integer SignOfBcoeff = 0;
+ Standard_Integer PrevSignOfBcoeff = SignOfBcoeff;
ThePointOfPath PathPnt;
// modified by NIZHNY-MKK Fri Oct 27 12:33:37 2000.BEGIN
if ((wd1[I].etat > 11) || ((wd1[I].etat < -11) && (movementdirectioninfo[I]!=0))) {
// modified by NIZHNY-MKK Fri Oct 27 12:33:43 2000.END
- PathPnt = Pnts1.Value(I);
+ PathPnt = Pnts1.Value(I);
+#ifdef DRAW
+ cout<<"PathPnt("<<I<<"):"<<endl;
+#endif
CurrentLine = new IntWalk_TheIWLine (new NCollection_IncAllocator());
CurrentLine->SetTangencyAtBegining(Standard_False);
Tgtend = Standard_False;
CurrentLine->AddStatusFirst(Standard_False, Standard_True, I, PathPnt);
+ IsTangentialIntersection = Standard_False;
+ SignOfBcoeff = PrevSignOfBcoeff = 0;
UVap(1) = wd1[I].ustart;
UVap(2) = wd1[I].vstart;
MakeWalkingPoint(11, UVap(1), UVap(2), Func, previousPoint);
CurrentLine->AddPoint(previousPoint);
// modified by NIZHNY-MKK Fri Oct 27 12:34:32 2000.BEGIN
if(movementdirectioninfo[I] !=0) {
- if(movementdirectioninfo[I] < 0) {
- StepSign = -1;
- CurrentLine->SetTangentVector(previousd3d.Reversed(),1);
- } else {
- StepSign = 1;
- CurrentLine->SetTangentVector(previousd3d,1);
- }
+ if(movementdirectioninfo[I] < 0) {
+ StepSign = -1;
+ CurrentLine->SetTangentVector(previousd3d.Reversed(),1);
+ } else {
+ StepSign = 1;
+ CurrentLine->SetTangentVector(previousd3d,1);
+ }
} else {
- Standard_Real tyutuyt=ThePointOfPathTool::Direction3d(PathPnt) * previousd3d;
- if( tyutuyt < 0) {
- StepSign = -1;
- CurrentLine->SetTangentVector(previousd3d.Reversed(),1);
- }
- else {
- StepSign = 1;
- CurrentLine->SetTangentVector(previousd3d,1);
- }
+ Standard_Real tyutuyt=ThePointOfPathTool::Direction3d(PathPnt) * previousd3d;
+ if( tyutuyt < 0) {
+ StepSign = -1;
+ CurrentLine->SetTangentVector(previousd3d.Reversed(),1);
+ }
+ else {
+ StepSign = 1;
+ CurrentLine->SetTangentVector(previousd3d,1);
+ }
}
// modified by NIZHNY-MKK Fri Oct 27 12:34:37 2000.END
- // Modified by Sergey KHROMOV - Tue Nov 20 10:41:45 2001 Begin
+// Modified by Sergey KHROMOV - Tue Nov 20 10:41:45 2001 Begin
wd1[I].etat = - abs(wd1[I].etat);
movementdirectioninfo[I] = (movementdirectioninfo[I]==0) ? StepSign : 0;
// Modified by Sergey KHROMOV - Tue Nov 20 10:41:56 2001 End
Standard_Real d2dx = Abs(previousd2d.X());
Standard_Real d2dy = Abs(previousd2d.Y());
if (d2dx < tolerance(1)) {
- PasC = pas * (VM-Vm)/d2dy;
+ PasC = pas * (VM-Vm)/d2dy;
}
else if (d2dy < tolerance(2)) {
- PasC = pas * (UM-Um)/d2dx;
+ PasC = pas * (UM-Um)/d2dx;
}
else {
- PasC = pas * Min((UM-Um)/d2dx,(VM-Vm)/d2dy);
+ PasC = pas * Min((UM-Um)/d2dx,(VM-Vm)/d2dy);
}
+ //PasSav = PasC;
+
Arrive = Standard_False;
ArretAjout = Standard_False;
+ OnPrevTangency = Standard_False;
NbDivision = 0;
StatusPrecedent = IntWalk_OK;
// modified by NIZHNY-MKK Fri Oct 27 12:39:37 2000
Standard_Integer IndexOfPathPointDoNotCheck=0;
- Standard_Integer aNbIter = 10;
+
while (!Arrive) { // as one of stop tests is not checked
- Cadre = Cadrage(BornInf,BornSup,UVap,PasC,StepSign);
- // Border?
+
+ Cadre = Cadrage(BornInf,BornSup,UVap,PasC,StepSign);
+ // Border?
#ifdef CHRONO
- Chronrsnld.Start();
+ Chronrsnld.Start();
#endif
- Rsnld.Perform(Func,UVap,BornInf,BornSup);
+ Rsnld.Perform(Func,UVap,BornInf,BornSup);
#ifdef CHRONO
- Chronrsnld.Stop();
+ Chronrsnld.Stop();
#endif
- if (Cadre) {
- BornInf(1) = Um; BornSup(1) = UM; BornInf(2) = Vm; BornSup(2) = VM;
- }
- if (Rsnld.IsDone()) {
- if (Abs(Func.Root()) > Func.Tolerance()) {
- PasC = PasC / 2.0;
- PasCu = Abs(PasC*previousd2d.X());
- PasCv = Abs(PasC*previousd2d.Y());
- if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
- if (CurrentLine->NbPoints() == 1) break;
- Arrive = Standard_True;
- CurrentLine->AddStatusLast(Standard_False);
- Tgtend = Standard_True; // check
+ if (Cadre) {
+ BornInf(1) = Um; BornSup(1) = UM; BornInf(2) = Vm; BornSup(2) = VM;
+ }
+ if (Rsnld.IsDone()) {
+ if (Abs(Func.Root()) > Func.Tolerance()) {
+ PasC = PasC / 2.0;
+ PasCu = Abs(PasC*previousd2d.X());
+ PasCv = Abs(PasC*previousd2d.Y());
+ if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
+ if (CurrentLine->NbPoints() == 1) break;
+ Arrive = Standard_True;
+ CurrentLine->AddStatusLast(Standard_False);
+ Tgtend = Standard_True; // check
Rajout = Standard_True;
- seqAjout.Append(lines.Length() + 1);
- }
- }
- else { // test stop
- Rsnld.Root(UVap);
- Arrive = TestArretPassage(Umult, Vmult, Func, UVap, N);
- if (Arrive) {
- Cadre = Standard_False;
- //in case if there is a frame and arrive at the same time
- }
- else {
- if (Rajout) {
- ArretAjout =TestArretAjout(Func, UVap, N, Psol);
- if (ArretAjout) {
- // jag 940615
- Tgtend = lines.Value(N)->IsTangentAtEnd();
- N = -N;
- }
- }
- // modified by NIZHNY-MKK Thu Nov 2 15:09:08 2000.BEGIN
- if(!(Rajout && ArretAjout)) {
- Standard_Real prevUp, prevVp;
- if (!reversed) {
- previousPoint.ParametersOnS2(prevUp, prevVp);
- }
- else {
- previousPoint.ParametersOnS1(prevUp, prevVp);
- }
- Arrive = TestPassedSolutionWithNegativeState(wd1, Umult, Vmult, prevUp, prevVp,
- nbMultiplicities, tolerance, Func, UVap, N);
- if(Arrive) {
- Cadre = Standard_False;
- }
- }
- // modified by NIZHNY-MKK Thu Nov 2 15:09:13 2000.END
- if (!ArretAjout && Cadre) {
- if (CurrentLine->NbPoints() == 1) break; // cancel the line
- TestArretCadre(Umult, Vmult, CurrentLine, Func, UVap, N);
- // if (N == 0) {
- if (N <= 0) { // jag 941017
- MakeWalkingPoint(2, UVap(1), UVap(2), Func, Psol);
- Tgtend = Func.IsTangent();
+ seqAjout.Append(lines.Length() + 1);
+ }
+ }
+ else { // test stop
+ Rsnld.Root(UVap);
+ Arrive = TestArretPassage(Umult, Vmult, Func, UVap, N);
+ if (Arrive) {
+ Cadre = Standard_False;
+ //in case if there is a frame and arrive at the same time
+ }
+ else {
+ if (Rajout) {
+ ArretAjout =TestArretAjout(Func, UVap, N, Psol, OnPrevTangency);
+ if (ArretAjout) {
+ // jag 940615
+ Tgtend = lines.Value(N)->IsTangentAtEnd();
+ N = -N;
+ }
+ }
+ // modified by NIZHNY-MKK Thu Nov 2 15:09:08 2000.BEGIN
+ if(!(Rajout && ArretAjout)) {
+ Standard_Real prevUp, prevVp;
+ if (!reversed) {
+ previousPoint.ParametersOnS2(prevUp, prevVp);
+ }
+ else {
+ previousPoint.ParametersOnS1(prevUp, prevVp);
+ }
+ Arrive = TestPassedSolutionWithNegativeState(wd1, Umult, Vmult, prevUp, prevVp,
+ nbMultiplicities, tolerance, Func, UVap, N);
+ if(Arrive) {
+ Cadre = Standard_False;
+ }
+ }
+ // modified by NIZHNY-MKK Thu Nov 2 15:09:13 2000.END
+ if (!ArretAjout && Cadre) {
+ if (CurrentLine->NbPoints() == 1) break; // cancel the line
+ TestArretCadre(Umult, Vmult, CurrentLine, Func, UVap, N);
+// if (N == 0) {
+ if (N <= 0) { // jag 941017
+ MakeWalkingPoint(2, UVap(1), UVap(2), Func, Psol);
+ Tgtend = Func.IsTangent();
N = -N;
+ }
+ }
+ }
+ Status = TestDeflection(Func, Arrive, UVap, StatusPrecedent,
+ NbDivision,PasC,StepSign,
+ CurrentLine->NbPoints(),ArretAjout,OnPrevTangency);
+ StatusPrecedent = Status;
+
+ if (Status == IntWalk_ArretSurPoint && Func.IsTangent())
+ {
+ PrevSignOfBcoeff = SignOfBcoeff;
+ gp_Vec newd3d;
+ gp_Dir2d newd2d;
+ Standard_Boolean IsDiscriminantNull;
+ if (ComputeDirOfTangentialIntersection(Func, StepSignTangent,
+ IsDiscriminantNull, SignOfBcoeff,
+ newd3d, newd2d))
+ {
+ if (SignOfBcoeff == 0) //point of branching
+ Status = IntWalk_ArretSurPoint;
+ else
+ {
+ if (PrevSignOfBcoeff == 0 ||
+ SignOfBcoeff == PrevSignOfBcoeff)
+ {
+ Status = IntWalk_OKtangent;
+ MakeWalkingPoint(2, UVap(1), UVap(2), Func, previousPoint);
+ previousd3d = newd3d;
+ previousd2d = newd2d;
+ CurrentLine->AddPoint(previousPoint);
+ }
+ else //change of sign of Bcoeff
+ {
+ MakeWalkingPoint(1, UVap(1), UVap(2), Func, Psol);
+ FindExactCuspPoint(Func, Psol,
+ PrevSignOfBcoeff, SignOfBcoeff);
+ Psol.ParametersOnSurface(reversed, UVap(1), UVap(2));
+ Status = IntWalk_ArretSurPoint;
+ }
}
}
}
- Status = TestDeflection(Func, Arrive, UVap, StatusPrecedent,
- NbDivision,PasC,StepSign);
- StatusPrecedent = Status;
- if (Status == IntWalk_PasTropGrand) {
- Arrive = Standard_False;
- ArretAjout = Standard_False;
- Tgtend = Standard_False; // jag 940615
- if (!reversed) {
- previousPoint.ParametersOnS2(UVap(1), UVap(2));
- }
- else {
- previousPoint.ParametersOnS1(UVap(1), UVap(2));
- }
- }
- else if (ArretAjout || Cadre) {
- Arrive = Standard_True;
- CurrentLine->AddStatusLast(Standard_False);
- if (Status != IntWalk_ArretSurPointPrecedent) {
- CurrentLine->AddPoint(Psol);
- }
- if (Cadre && N==0) {
- Rajout = Standard_True;
- seqAjout.Append(lines.Length()+1);
- }
+
+ if (Status == IntWalk_PasTropGrand) {
+ Arrive = Standard_False;
+ ArretAjout = Standard_False;
+ Tgtend = Standard_False; // jag 940615
+ if (!reversed) {
+ previousPoint.ParametersOnS2(UVap(1), UVap(2));
+ }
+ else {
+ previousPoint.ParametersOnS1(UVap(1), UVap(2));
+ }
+ }
+ else if (ArretAjout || Cadre) {
+ Arrive = Standard_True;
+ CurrentLine->AddStatusLast(Standard_False);
+ if (Status != IntWalk_ArretSurPointPrecedent) {
+ CurrentLine->AddPoint(Psol);
+ }
+ if (Cadre && N==0) {
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
+ }
+ /*
+ else if (Status == IntWalk_ArretSurPointPrecedent &&
+ !Func.IsTangent()) //continue the line because no tangent point
+ {
+ Status = IntWalk_OK;
+ StatusPrecedent = IntWalk_OK;
+ PasC = PasSav;
+ MakeWalkingPoint(2, UVap(1), UVap(2), Func, previousPoint);
+ previousd3d = Func.Direction3d();
+ previousd2d = Func.Direction2d();
+ CurrentLine->AddPoint(previousPoint);
}
- else if (Status == IntWalk_ArretSurPointPrecedent) {
- if (CurrentLine->NbPoints() == 1) { //cancel the line
- Arrive = Standard_False;
- break;
- }
- Arrive = Standard_True;
- Rajout = Standard_True;
+ */
+ else if (Status == IntWalk_ArretSurPointPrecedent) {
+ if (CurrentLine->NbPoints() == 1) { //cancel the line
+ Arrive = Standard_False;
+ break;
+ }
+ Arrive = Standard_True;
+ Rajout = Standard_True;
seqAjout.Append(lines.Length() + 1);
- CurrentLine->AddStatusLast(Standard_False);
- Tgtend = Standard_True; // check
- }
- else if (Arrive) {
- if (CurrentLine->NbPoints() == 1 && // cancel the line
- (N == I || Status == IntWalk_PointConfondu) ) {
- // if N == I the main uv is probably lost
- // or the point is a point of accumulation
- // if point is confused the start data is bad
- Arrive = Standard_False;
- break;
- }
- // necessairily N > 0 jag 940617
+ CurrentLine->AddStatusLast(Standard_False);
+ Tgtend = Standard_True; // check
+ }
+ else if (Arrive) {
+ if (CurrentLine->NbPoints() == 1 && // cancel the line
+ (N == I || Status == IntWalk_PointConfondu) ) {
+ // if N == I the main uv is probably lost
+ // or the point is a point of accumulation
+ // if point is confused the start data is bad
+ Arrive = Standard_False;
+ break;
+ }
+ // necessairily N > 0 jag 940617
// point of stop given at input
- PathPnt = Pnts1.Value(N);
+ PathPnt = Pnts1.Value(N);
+
+ Standard_Integer etat1N=wd1[N].etat;
+ // modified by NIZHNY-MKK Thu Nov 2 15:09:51 2000.BEGIN
+ // if (etat1N < 11) { // passing point that is a stop
+ if (Abs(etat1N) < 11) { // passing point that is a stop
+ // modified by NIZHNY-MKK Thu Nov 2 15:12:11 2000.END
+ if (Status == IntWalk_ArretSurPoint) {
+ CurrentLine->AddStatusLast(Standard_False);
+ Tgtend = Standard_True; // need check
+ }
+ else {
+ Arrive = Standard_False;
+ }
+ CurrentLine->AddIndexPassing(N);
+ }
+ else { // point of stop given at input
+ if (etat1N == 11) {
+ Tgtend = Standard_True;
+ }
+ CurrentLine->AddStatusLast(Standard_True, N, PathPnt);
+ }
+ AddPointInCurrentLine(N,PathPnt,CurrentLine);
+ if ((etat1N != 1 && etat1N != 11)) {
+ // modified by NIZHNY-MKK Fri Oct 27 12:43:05 2000.BEGIN
+ // wd1[N].etat= - wd1[N].etat;
+ wd1[N].etat = - Abs(etat1N);
+ movementdirectioninfo[N] = (movementdirectioninfo[N]==0) ? StepSign : 0;
+ if(Arrive && movementdirectioninfo[N]!=0) {
+ IndexOfPathPointDoNotCheck = N;
+ }
- Standard_Integer etat1N=wd1[N].etat;
- // modified by NIZHNY-MKK Thu Nov 2 15:09:51 2000.BEGIN
- // if (etat1N < 11) { // passing point that is a stop
- if (Abs(etat1N) < 11) { // passing point that is a stop
- // modified by NIZHNY-MKK Thu Nov 2 15:12:11 2000.END
- if (Status == IntWalk_ArretSurPoint) {
- CurrentLine->AddStatusLast(Standard_False);
- Tgtend = Standard_True; // need check
- }
- else {
- Arrive = Standard_False;
- }
- CurrentLine->AddIndexPassing(N);
- }
- else { // point of stop given at input
- if (etat1N == 11) {
- Tgtend = Standard_True;
- }
- CurrentLine->AddStatusLast(Standard_True, N, PathPnt);
- }
- AddPointInCurrentLine(N,PathPnt,CurrentLine);
- if ((etat1N != 1 && etat1N != 11)) {
- // modified by NIZHNY-MKK Fri Oct 27 12:43:05 2000.BEGIN
- // wd1[N].etat= - wd1[N].etat;
- wd1[N].etat = - Abs(etat1N);
- movementdirectioninfo[N] = (movementdirectioninfo[N]==0) ? StepSign : 0;
- if(Arrive && movementdirectioninfo[N]!=0) {
- IndexOfPathPointDoNotCheck = N;
- }
-
- if(Arrive) {
- Rajout = Standard_True;
- seqAjout.Append(lines.Length() + 1);
- }
- // modified by NIZHNY-MKK Fri Oct 27 12:45:33 2000.END
- }
- }
- else if (Status == IntWalk_ArretSurPoint) {
- Arrive = Standard_True;
+ if(Arrive) {
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length() + 1);
+ }
+ // modified by NIZHNY-MKK Fri Oct 27 12:45:33 2000.END
+ }
+ }
+ else if (Status == IntWalk_ArretSurPoint) {
+ Arrive = Standard_True;
CurrentLine->AddStatusLast(Standard_False);
Tgtend = Standard_True;
MakeWalkingPoint(1, UVap(1), UVap(2), Func, Psol);
CurrentLine->AddPoint(Psol);
Rajout = Standard_True;
seqAjout.Append(lines.Length() + 1);
- }
- else if (Status == IntWalk_OK) {
+ }
+ else if (Status == IntWalk_OK) {
MakeWalkingPoint(2, UVap(1), UVap(2), Func, previousPoint);
- previousd3d = Func.Direction3d();
- previousd2d = Func.Direction2d();
- CurrentLine->AddPoint(previousPoint);
- }
- else if (Status == IntWalk_PointConfondu)
- {
- aNbIter --;
- }
- }
- }
- else { // no numerical solution
- PasC = PasC / 2.;
- PasCu = Abs(PasC*previousd2d.X());
- PasCv = Abs(PasC*previousd2d.Y());
- if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
- if (CurrentLine->NbPoints()==1) break;
- Arrive = Standard_True;
- CurrentLine->AddStatusLast(Standard_False);
- Tgtend = Standard_True; // need check
- Rajout = Standard_True;
+ previousd3d = Func.Direction3d();
+ previousd2d = Func.Direction2d();
+ CurrentLine->AddPoint(previousPoint);
+ }
+ }
+ }
+ else { // no numerical solution
+ PasC = PasC / 2.;
+ PasCu = Abs(PasC*previousd2d.X());
+ PasCv = Abs(PasC*previousd2d.Y());
+ if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
+ if (CurrentLine->NbPoints()==1) break;
+ Arrive = Standard_True;
+ CurrentLine->AddStatusLast(Standard_False);
+ Tgtend = Standard_True; // need check
+ Rajout = Standard_True;
seqAjout.Append(lines.Length() + 1);
- }
- }
-
- if(aNbIter < 0)
- break;
+ }
+ }
} // end of started line
if (Arrive) {
- CurrentLine->SetTangencyAtEnd(Tgtend);
- lines.Append(CurrentLine);
- // modified by NIZHNY-MKK Fri Oct 27 12:59:29 2000.BEGIN
- movementdirectioninfo[I]=0;
- if(wd1[I].etat > 0)
- // modified by NIZHNY-MKK Fri Oct 27 12:59:42 2000.END
- wd1[I].etat=-wd1[I].etat;
-
- //-- lbr le 5 juin 97 (Pb ds Contap)
- for(Standard_Integer av=1; av<=nbPath; av++) {
- // modified by NIZHNY-MKK Fri Oct 27 13:00:22 2000.BEGIN
- // if (wd1[av].etat > 11) {
- if ((wd1[av].etat > 11) ||
- ((av!=I) &&
- (av!=IndexOfPathPointDoNotCheck) &&
- (wd1[av].etat < -11) &&
- (movementdirectioninfo[av]!=0)))
- {
- // modified by NIZHNY-MKK Fri Oct 27 13:00:26 2000.END
- Standard_Real Uav=wd1[av].ustart;
- Standard_Real Vav=wd1[av].vstart;
- Standard_Real Uavp,Vavp;
- const IntSurf_PntOn2S &avP=CurrentLine->Value(CurrentLine->NbPoints());
- if (!reversed) {
- avP.ParametersOnS2(Uavp,Vavp);
- }
- else {
- avP.ParametersOnS1(Uavp,Vavp);
- }
- Uav-=Uavp;
- Vav-=Vavp;
- Uav*=0.001; Vav*=0.001;
- if(Abs(Uav)<tolerance(1) && Abs(Vav)<tolerance(2)) {
- // modified by NIZHNY-MKK Fri Oct 27 13:01:38 2000.BEGIN
- // wd1[av].etat=-wd1[av].etat;
- if(wd1[av].etat < 0) {
- movementdirectioninfo[av] = 0;
- } else {
- wd1[av].etat=-wd1[av].etat;
- movementdirectioninfo[av] = StepSign;
- }
- // modified by NIZHNY-MKK Fri Oct 27 13:01:42 2000.END
- CurrentLine->AddStatusLast(Standard_True, av, Pnts1.Value(av));
- //-- cout<<"\n Debug ? lbr ds IntWalk_IWalking_3.gxx"<<endl;
- }
+ CurrentLine->SetTangencyAtEnd(Tgtend);
+ CurrentLine->SetTangency(IsTangentialIntersection);
+ lines.Append(CurrentLine);
+ // modified by NIZHNY-MKK Fri Oct 27 12:59:29 2000.BEGIN
+ movementdirectioninfo[I]=0;
+ if(wd1[I].etat > 0)
+ // modified by NIZHNY-MKK Fri Oct 27 12:59:42 2000.END
+ wd1[I].etat=-wd1[I].etat;
- const IntSurf_PntOn2S &avPP=CurrentLine->Value(1);
- if (!reversed) {
- avPP.ParametersOnS2(Uavp,Vavp);
- }
- else {
- avPP.ParametersOnS1(Uavp,Vavp);
- }
- Uav=wd1[av].ustart;
- Vav=wd1[av].vstart;
- Uav-=Uavp;
- Vav-=Vavp;
- Uav*=0.001; Vav*=0.001;
- if(Abs(Uav)<tolerance(1) && Abs(Vav)<tolerance(2)) {
- // modified by NIZHNY-MKK Fri Oct 27 13:02:49 2000.BEGIN
- // wd1[av].etat=-wd1[av].etat;
- if(wd1[av].etat < 0) {
- movementdirectioninfo[av] = 0;
- } else {
- wd1[av].etat=-wd1[av].etat;
- movementdirectioninfo[av] = -StepSign;
- }
- // modified by NIZHNY-MKK Fri Oct 27 13:02:52 2000.END
- //-- cout<<"\n Debug ? lbr ds IntWalk_IWalking_3.gxx"<<endl;
- CurrentLine->AddStatusFirst(Standard_False, Standard_True, av, Pnts1.Value(av));
- }
- }
- }
+ //-- lbr le 5 juin 97 (Pb ds Contap)
+ for(Standard_Integer av=1; av<=nbPath; av++) {
+ // modified by NIZHNY-MKK Fri Oct 27 13:00:22 2000.BEGIN
+ // if (wd1[av].etat > 11) {
+ if ((wd1[av].etat > 11) ||
+ ((av!=I) &&
+ (av!=IndexOfPathPointDoNotCheck) &&
+ (wd1[av].etat < -11) &&
+ (movementdirectioninfo[av]!=0))) {
+ // modified by NIZHNY-MKK Fri Oct 27 13:00:26 2000.END
+ Standard_Real Uav=wd1[av].ustart;
+ Standard_Real Vav=wd1[av].vstart;
+ Standard_Real Uavp,Vavp;
+ const IntSurf_PntOn2S &avP=CurrentLine->Value(CurrentLine->NbPoints());
+ if (!reversed) {
+ avP.ParametersOnS2(Uavp,Vavp);
+ }
+ else {
+ avP.ParametersOnS1(Uavp,Vavp);
+ }
+ Uav-=Uavp;
+ Vav-=Vavp;
+ Uav*=0.001; Vav*=0.001;
+ if(Abs(Uav)<tolerance(1) && Abs(Vav)<tolerance(2)) {
+ // modified by NIZHNY-MKK Fri Oct 27 13:01:38 2000.BEGIN
+ // wd1[av].etat=-wd1[av].etat;
+ if(wd1[av].etat < 0) {
+ movementdirectioninfo[av] = 0;
+ } else {
+ wd1[av].etat=-wd1[av].etat;
+ movementdirectioninfo[av] = StepSign;
+ }
+ // modified by NIZHNY-MKK Fri Oct 27 13:01:42 2000.END
+ CurrentLine->AddStatusLast(Standard_True, av, Pnts1.Value(av));
+ //-- cout<<"\n Debug ? lbr ds IntWalk_IWalking_3.gxx"<<endl;
+ }
+
+ const IntSurf_PntOn2S &avPP=CurrentLine->Value(1);
+ if (!reversed) {
+ avPP.ParametersOnS2(Uavp,Vavp);
+ }
+ else {
+ avPP.ParametersOnS1(Uavp,Vavp);
+ }
+ Uav=wd1[av].ustart;
+ Vav=wd1[av].vstart;
+ Uav-=Uavp;
+ Vav-=Vavp;
+ Uav*=0.001; Vav*=0.001;
+ if(Abs(Uav)<tolerance(1) && Abs(Vav)<tolerance(2)) {
+ // modified by NIZHNY-MKK Fri Oct 27 13:02:49 2000.BEGIN
+ // wd1[av].etat=-wd1[av].etat;
+ if(wd1[av].etat < 0) {
+ movementdirectioninfo[av] = 0;
+ } else {
+ wd1[av].etat=-wd1[av].etat;
+ movementdirectioninfo[av] = -StepSign;
+ }
+ // modified by NIZHNY-MKK Fri Oct 27 13:02:52 2000.END
+ //-- cout<<"\n Debug ? lbr ds IntWalk_IWalking_3.gxx"<<endl;
+ CurrentLine->AddStatusFirst(Standard_False, Standard_True, av, Pnts1.Value(av));
+ }
+ }
+ }
+
}
} //end of point processing
} //end of all points
}
+
// modified by NIZHNY-MKK Thu Nov 2 15:07:53 2000.BEGIN
static Standard_Boolean TestPassedSolutionWithNegativeState(const IntWalk_VectorOfWalkingData& wd,
const TColStd_SequenceOfReal& Umult,
// commercial license or contractual agreement.
#include <NCollection_IncAllocator.hxx>
+#include <IntSurf_Quadric.hxx>
+#include <gp_Lin2d.hxx>
+#include <gce_MakeLin2d.hxx>
void IntWalk_IWalking::ComputeCloseLine(const TColStd_SequenceOfReal& Umult,
const TColStd_SequenceOfReal& Vmult,
const ThePOPIterator& Pnts1,
const ThePOLIterator& Pnts2,
+ const ThePOLIterator& Pnts3,
TheIWFunction& Func,
- Standard_Boolean& Rajout )
+ Standard_Boolean& Rajout )
// *********** Processing of closed line **********************
//
// for any interior non-processed point
//
// ********************************************************************
{
- Standard_Integer I,N = 0;
+ //const Standard_Real GlobalValTol = 1.e-12;
+
+ Standard_Integer I, N = 0;
Standard_Real aBornInf[2], aBornSup[2], aUVap[2];
math_Vector BornInf(aBornInf,1,2), BornSup(aBornSup,1,2);
math_Vector Uvap(aUVap,1,2);// parameters of current approach
Standard_Boolean Arrive;// show if line ends
Standard_Boolean Cadre; // show if on border of the domains
Standard_Boolean ArretAjout; // show if on the added point
+ Standard_Boolean OnPrevTangency; //shows if one is on added point of tangent line
IntSurf_PntOn2S Psol;
Handle(IntWalk_TheIWLine) CurrentLine; //line under construction
ThePointOfPath PathPnt;
Standard_Boolean Tgtbeg,Tgtend;
Standard_Integer StepSign;
+ Standard_Integer StepSignTangent;
+ Standard_Integer SignOfBcoeff = 0;
+ Standard_Integer PrevSignOfBcoeff = SignOfBcoeff;
IntWalk_StatusDeflection Status = IntWalk_OK, StatusPrecedent;
Standard_Integer NbDivision ; // number of divisions of step
// Check borders for degeneracy:
math_Matrix D(1,1,1,2);
+ math_Vector FuncVal(1,1);
const Standard_Integer aNbSamplePnt = 10;
Standard_Boolean isLeftDegeneratedBorder[2] = {Standard_True, Standard_True};
Standard_Boolean isRightDegeneratedBorder[2] = {Standard_True, Standard_True};
}
for (I = 1;I<=nbLoop;I++) {
- if (wd2[I].etat > 12)
- { // start point of closed line
+ if (wd2[I].etat > 12) { // start point of closed line
+
LoopPnt = Pnts2.Value(I);
- previousPoint.SetValue(ThePointOfLoopTool::Value3d(LoopPnt),reversed,
- wd2[I].ustart,wd2[I].vstart);
+ gp_Pnt thePoint = ThePointOfLoopTool::Value3d(LoopPnt);
+ previousPoint.SetValue(thePoint,reversed,
+ wd2[I].ustart,wd2[I].vstart);
previousd3d = ThePointOfLoopTool::Direction3d(LoopPnt);
previousd2d = ThePointOfLoopTool::Direction2d(LoopPnt);
-
+
+#ifdef DRAW
+ Standard_Real theU, theV;
+ ThePointOfLoopTool::Value2d(LoopPnt, theU, theV);
+ cout<<"LoopPnt("<<I<<"):"<<endl;
+ cout<<"u = "<<theU<<", v = "<<theV<<endl;
+ cout<<"pnt = "<<thePoint.X()<<" "<<thePoint.Y()<<" "<<thePoint.Z()<<endl<<endl;
+#endif
+
CurrentLine = new IntWalk_TheIWLine (new NCollection_IncAllocator());
CurrentLine->AddPoint(previousPoint);
CurrentLine->SetTangentVector(previousd3d,1);
Tgtbeg = Standard_False;
Tgtend = Standard_False;
+ IsTangentialIntersection = Standard_False;
+ SignOfBcoeff = PrevSignOfBcoeff = 0;
Uvap(1) = wd2[I].ustart;
Uvap(2) = wd2[I].vstart;
Standard_Real d2dx = Abs(previousd2d.X());
Standard_Real d2dy = Abs(previousd2d.Y());
if (d2dx < tolerance(1)) {
- PasC = pas * (VM-Vm)/d2dy;
+ PasC = pas * (VM-Vm)/d2dy;
}
else if (d2dy < tolerance(2)) {
- PasC = pas * (UM-Um)/d2dx;
+ PasC = pas * (UM-Um)/d2dx;
}
else {
- PasC = pas * Min((UM-Um)/d2dx,(VM-Vm)/d2dy);
+ PasC = pas * Min((UM-Um)/d2dx,(VM-Vm)/d2dy);
}
PasSav = PasC;
Arrive = Standard_False;
ArretAjout = Standard_False;
+ OnPrevTangency = Standard_False;
NbDivision = 0;
StatusPrecedent = IntWalk_OK;
- Standard_Integer aNbIter = 10;
while (!Arrive) { // as no test of stop is passed
- Cadre=Cadrage(BornInf,BornSup,Uvap,PasC, StepSign); // border?
+ Cadre=Cadrage(BornInf,BornSup,Uvap,PasC, StepSign); // border?
#ifdef CHRONO
- Chronrsnld.Start();
+ Chronrsnld.Start();
#endif
-
Rsnld.Perform(Func,Uvap,BornInf,BornSup);
#ifdef CHRONO
- Chronrsnld.Stop();
+ Chronrsnld.Stop();
#endif
- if (Cadre) { // update of limits.
- BornInf(1) = Um;BornSup(1) = UM;BornInf(2) = Vm;BornSup(2) = VM;
- }
- if (Rsnld.IsDone()) {
- if (Abs(Func.Root()) > Func.Tolerance()) { // no solution for the tolerance
- PasC = PasC/2.;
- PasCu = Abs(PasC*previousd2d.X());
- PasCv = Abs(PasC*previousd2d.Y());
-
- if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
- if (CurrentLine->NbPoints()==1) break;
- Arrive = Standard_True;
- CurrentLine->AddStatusFirstLast(Standard_False,
- Standard_False,Standard_False);
- Rajout = Standard_True;
+ if (Cadre) { // update of limits.
+ BornInf(1) = Um;BornSup(1) = UM;BornInf(2) = Vm;BornSup(2) = VM;
+ }
+ if (Rsnld.IsDone()) {
+ if (Abs(Func.Root()) > Func.Tolerance()) { // no solution for the tolerance
+ PasC = PasC/2.;
+ PasCu = Abs(PasC*previousd2d.X());
+ PasCv = Abs(PasC*previousd2d.Y());
+
+ if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
+ if (CurrentLine->NbPoints()==1) break;
+ Arrive = Standard_True;
+ CurrentLine->AddStatusFirstLast(Standard_False,
+ Standard_False,Standard_False);
+ Rajout = Standard_True;
seqAjout.Append(lines.Length()+1);
- Tgtend = Standard_True;
- }
- }
- else { // there is a solution
+ Tgtend = Standard_True;
+ }
+ }
+ else { // there is a solution
Rsnld.Root(Uvap);
// Avoid unitialized memory access.
}
}
- Arrive = TestArretPassage(Umult,Vmult,Uvap,I,Ipass);
- if (Arrive) {//reset proper parameter to test the arrow.
- Psol = CurrentLine->Value(1);
- if (!reversed) {
- Psol.ParametersOnS2(Uvap(1),Uvap(2));
- }
- else {
- Psol.ParametersOnS1(Uvap(1),Uvap(2));
- }
+ Arrive = TestArretPassage(Umult,Vmult,Uvap,I,Ipass);
+ if (Arrive) {//reset proper parameter to test the arrow.
+ Psol = CurrentLine->Value(1);
+ if (!reversed) {
+ Psol.ParametersOnS2(Uvap(1),Uvap(2));
+ }
+ else {
+ Psol.ParametersOnS1(Uvap(1),Uvap(2));
+ }
Cadre=Standard_False;
- //in case if there is a frame and arrival at the same time
+ //in case if there is a frame and arrival at the same time
+ }
+ else { // modif jag 940615
+
+ if (Rajout) { // test on added points
+ ArretAjout =TestArretAjout(Func, Uvap, N, Psol, OnPrevTangency);
+ if (ArretAjout) {
+ if (N >0) {
+ Tgtend = lines.Value(N)->IsTangentAtEnd();
+ N = -N;
+ }
+ else {
+ Tgtend = lines.Value(-N)->IsTangentAtBegining();
+ }
+ Arrive = (wd2[I].etat == 12);
+ }
+ }
+
+ if (!ArretAjout&& Cadre) { // test on already marked points
+ if (CurrentLine->NbPoints() == 1) break; // cancel the line
+ TestArretCadre(Umult,Vmult,CurrentLine,Func,Uvap,N);
+// if (N==0) {
+ if (N <= 0) { // jag 941017
+ MakeWalkingPoint(2,Uvap(1),Uvap(2),Func,Psol);
+ Tgtend = Func.IsTangent(); // jag 940616
+ N = -N;
+ }
+ Arrive = (wd2[I].etat == 12); // the line is open
+ }
+ }
+ Status = TestDeflection(Func, Arrive,Uvap,StatusPrecedent,
+ NbDivision,PasC,StepSign,
+ CurrentLine->NbPoints(),ArretAjout,OnPrevTangency);
+ StatusPrecedent = Status;
+ if (Status == IntWalk_PasTropGrand) {// division of the step
+ Arrive = Standard_False;
+ ArretAjout = Standard_False;
+ Tgtend = Standard_False; // jag 940616
+ if (!reversed) {
+ previousPoint.ParametersOnS2(Uvap(1),Uvap(2));
+ }
+ else {
+ previousPoint.ParametersOnS1(Uvap(1),Uvap(2));
+ }
+ }
+ else if (ArretAjout || Cadre) {
+
+ if (Arrive) { // line s is open
+ CurrentLine->AddStatusLast(Standard_False);
+ if (Status != IntWalk_ArretSurPointPrecedent) {
+ CurrentLine->AddPoint(Psol);
+ }
+ if (Cadre && N==0) {
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
+
+ }
+ else { // open
+ wd2[I].etat = 12; // declare it open
+ Tgtbeg = Tgtend;
+ Tgtend = Standard_False;
+ ArretAjout = Standard_False;
+ StepSign = -1;
+ StatusPrecedent = IntWalk_OK;
+ PasC = PasSav;
+ if (Status == IntWalk_ArretSurPointPrecedent) {
+ OpenLine(0,Psol,Pnts1,Func,CurrentLine);
+ }
+ else {
+ OpenLine(-lines.Length()-1,Psol,Pnts1,Func,CurrentLine);
+ }
+ if (Cadre && N==0) {
+ Rajout = Standard_True;
+ seqAjout.Append(-lines.Length()-1);
+ }
+ }
+ }
+ /*
+ else if (Status == IntWalk_ArretSurPointPrecedent &&
+ !Func.IsTangent()) //continue the line because no tangent point
+ {
+ Status = IntWalk_OK;
+ StatusPrecedent = IntWalk_OK;
+ PasC = PasSav;
+
+ if (Ipass!=0) CurrentLine->AddIndexPassing(Ipass);
+ previousPoint.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ previousd3d = Func.Direction3d();
+ previousd2d = Func.Direction2d();
+ CurrentLine->AddPoint(previousPoint);
}
- else { // modif jag 940615
- if (Rajout) { // test on added points
- ArretAjout =TestArretAjout(Func,Uvap,N,Psol);
- if (ArretAjout) {
- if (N >0) {
- Tgtend = lines.Value(N)->IsTangentAtEnd();
- N = -N;
- }
- else {
- Tgtend = lines.Value(-N)->IsTangentAtBegining();
+ */
+ else if ( Status == IntWalk_ArretSurPointPrecedent) {
+ if (CurrentLine->NbPoints() == 1) { //cancel the line
+ Arrive = Standard_False;
+ break;
+ }
+ if (wd2[I].etat >12) { //the line should become open
+ wd2[I].etat = 12; //declare it open
+ ArretAjout = Standard_False;
+ OpenLine(0,Psol,Pnts1,Func,CurrentLine);
+ StepSign = -1;
+ StatusPrecedent = IntWalk_OK;
+ Arrive = Standard_False;
+ PasC = PasSav;
+ Rajout = Standard_True;
+ seqAjout.Append(-lines.Length()-1);
+ }
+ else { // line s is open
+ Arrive =Standard_True;
+ CurrentLine->AddStatusLast(Standard_False);
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
+ }
+ else if (Arrive) {
+ if (wd2[I].etat > 12) { //line closed good case
+ CurrentLine->AddStatusFirstLast(Standard_True,
+ Standard_False,Standard_False);
+ CurrentLine->AddPoint(CurrentLine->Value(1));
+ }
+ else if (N >0) { //point of stop given at input
+ PathPnt = Pnts1.Value(N);
+ CurrentLine->AddStatusLast(Standard_True,N,PathPnt);
+ AddPointInCurrentLine(N,PathPnt,CurrentLine);
+ }
+ }
+ else if (Status == IntWalk_ArretSurPoint)
+ {
+ if (Func.IsTangent())
+ {
+ PrevSignOfBcoeff = SignOfBcoeff;
+ gp_Vec newd3d;
+ gp_Dir2d newd2d;
+ Standard_Boolean IsDiscriminantNull;
+ Standard_Boolean DirComputed =
+ ComputeDirOfTangentialIntersection(Func, StepSignTangent,
+ IsDiscriminantNull, SignOfBcoeff,
+ newd3d, newd2d);
+ if (!IsDiscriminantNull) //we have gone from tangent line
+ {
+ //take line from prevprevP to prevP
+ //project current solution onto this line
+ //direction of projection is direction to find null Discriminant again
+ //and then repeat
+ gp_Pnt2d prevprevP = CurrentLine->Value(CurrentLine->NbPoints()-1).ValueOnSurface(reversed);
+ gp_Pnt2d prevP = previousPoint.ValueOnSurface(reversed);
+ gp_Lin2d prevLine = gce_MakeLin2d(prevprevP, prevP);
+ //project
+ gp_Pnt2d CurSol(Uvap(1),Uvap(2));
+ gp_XY LinLoc = prevLine.Location().XY();
+ gp_XY LinDir = prevLine.Direction().XY();
+ Standard_Real Parameter = (CurSol.XY() - LinLoc) * LinDir;
+ gp_Pnt2d ProjCurSol( LinLoc + Parameter * LinDir );
+ Uvap(1) = ProjCurSol.X();
+ Uvap(2) = ProjCurSol.Y();
+ Func.Values(Uvap, FuncVal, D);
+ /////////
+ DirComputed = ComputeDirOfTangentialIntersection(Func, StepSignTangent,
+ IsDiscriminantNull, SignOfBcoeff,
+ newd3d, newd2d);
+ }
+ if (DirComputed)
+ {
+ if (SignOfBcoeff == 0) //point of branching
+ Status = IntWalk_ArretSurPoint;
+ else
+ {
+ if (PrevSignOfBcoeff == 0 ||
+ SignOfBcoeff == PrevSignOfBcoeff)
+ {
+ Status = IntWalk_OKtangent;
+ MakeWalkingPoint(2, Uvap(1), Uvap(2), Func, previousPoint);
+ previousd3d = newd3d;
+ previousd2d = newd2d;
+ CurrentLine->AddPoint(previousPoint);
+ }
+ else //change of sign of Bcoeff
+ {
+ MakeWalkingPoint(1, Uvap(1), Uvap(2), Func, Psol);
+ FindExactCuspPoint(Func, Psol,
+ PrevSignOfBcoeff, SignOfBcoeff);
+ Psol.ParametersOnSurface(reversed, Uvap(1), Uvap(2));
+ //Status = IntWalk_ArretSurPoint;
+ }
}
- Arrive = (wd2[I].etat == 12);
}
}
-
- if (!ArretAjout&& Cadre) { // test on already marked points
- if (CurrentLine->NbPoints() == 1) break; // cancel the line
- TestArretCadre(Umult,Vmult,CurrentLine,Func,Uvap,N);
- // if (N==0) {
- if (N <= 0) { // jag 941017
- MakeWalkingPoint(2,Uvap(1),Uvap(2),Func,Psol);
- Tgtend = Func.IsTangent(); // jag 940616
- N = -N;
+ if (Status == IntWalk_ArretSurPoint) {
+ if (wd2[I].etat >12) { //line should become open
+ wd2[I].etat = 12; //declare it open
+ Tgtbeg = Standard_True;
+ Tgtend = Standard_False;
+ N= -lines.Length()-1;
+ Psol.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ OpenLine(N,Psol,Pnts1,Func,CurrentLine);
+ StepSign = -1;
+ SignOfBcoeff = PrevSignOfBcoeff = 0;
+ Rajout = Standard_True;
+ seqAjout.Append(N);
+ StatusPrecedent = IntWalk_OK;
+ Arrive = Standard_False;
+ PasC = PasSav;
+ }
+ else {
+ Arrive = Standard_True;
+ if (Ipass!=0) { //point of passage, point of stop
+ PathPnt = Pnts1.Value(Ipass);
+ CurrentLine->AddStatusLast(Standard_True,Ipass,PathPnt);
+ AddPointInCurrentLine(Ipass,PathPnt,CurrentLine);
+ }
+ else {
+ CurrentLine->AddStatusLast(Standard_False);
+ IntSurf_PntOn2S newP;
+ newP.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ CurrentLine->AddPoint(newP);
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
}
- Arrive = (wd2[I].etat == 12); // the line is open
- }
- }
- Status = TestDeflection(Func, Arrive,Uvap,StatusPrecedent,
- NbDivision,PasC,StepSign);
-
- StatusPrecedent = Status;
- if (Status == IntWalk_PasTropGrand) {// division of the step
- Arrive = Standard_False;
- ArretAjout = Standard_False;
- Tgtend = Standard_False; // jag 940616
- if (!reversed) {
- previousPoint.ParametersOnS2(Uvap(1),Uvap(2));
- }
- else {
- previousPoint.ParametersOnS1(Uvap(1),Uvap(2));
}
}
- else if (ArretAjout || Cadre) {
+ else if (Status == IntWalk_OK) {
+ if (Ipass!=0) CurrentLine->AddIndexPassing(Ipass);
+ previousPoint.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ previousd3d = Func.Direction3d();
+ previousd2d = Func.Direction2d();
+ CurrentLine->AddPoint(previousPoint);
+ }
+ }
+ }
+ else { //no numerical solution NotDone
+ PasC = PasC/2.;
+ PasCu = Abs(PasC*previousd2d.X());
+ PasCv = Abs(PasC*previousd2d.Y());
+
+ if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
+ if (CurrentLine->NbPoints() == 1) break; // cancel the line
+ Arrive = Standard_True;
+ CurrentLine->AddStatusFirstLast(Standard_False,Standard_False,
+ Standard_False);
+ Tgtend = Standard_True;
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
+ }
+ }// end of started line
+ if (Arrive) {
+ CurrentLine->SetTangencyAtBegining(Tgtbeg);
+ CurrentLine->SetTangencyAtEnd(Tgtend);
+ CurrentLine->SetTangency(IsTangentialIntersection);
+
+ lines.Append(CurrentLine);
+ wd2[I].etat=-wd2[I].etat; //mark point as processed
+ }
+ } //end of processing of start point
+ } //end of all start points
- if (Arrive) { // line s is open
- CurrentLine->AddStatusLast(Standard_False);
- if (Status != IntWalk_ArretSurPointPrecedent) {
- CurrentLine->AddPoint(Psol);
- }
- if (Cadre && N==0) {
- Rajout = Standard_True;
- seqAjout.Append(lines.Length()+1);
- }
+ //Process inner tangent points
+ IsTangentialIntersection = Standard_True;
+ StepSign = 1;
+ StepSignTangent = 1;
+ SignOfBcoeff = 0;
+ PrevSignOfBcoeff = SignOfBcoeff;
+ Standard_Integer nbTang = Pnts3.Length();
+ for (I = 1; I <= nbTang; I++) {
+ if (wd3[I].etat > 12) { // start point of closed line
+
+ LoopPnt = Pnts3.Value(I);
+ gp_Pnt thePoint = ThePointOfLoopTool::Value3d(LoopPnt);
+ previousPoint.SetValue(thePoint,reversed,
+ wd3[I].ustart, wd3[I].vstart);
+ Standard_Real theU, theV;
+ ThePointOfLoopTool::Value2d(LoopPnt, theU, theV);
+ IntSurf_PntOn2S PrevPointFromFunc;
+ MakeWalkingPoint(11, theU, theV, Func, PrevPointFromFunc);
+ /////
+ gp_Vec newd3d;
+ gp_Dir2d newd2d;
+ Standard_Boolean IsDiscriminantNull;
+ if (!ComputeDirOfTangentialIntersection(Func, StepSignTangent,
+ IsDiscriminantNull, SignOfBcoeff,
+ newd3d, newd2d))
+ continue;
+ if (SignOfBcoeff == 0) //point of branching or tangent zone
+ continue;
+ previousd3d = newd3d;
+ previousd2d = newd2d;
+ //here <previousd3d> and <previousd2d> are defined
+
+ CurrentLine = new IntWalk_TheIWLine (new NCollection_IncAllocator());
+ CurrentLine->AddPoint(previousPoint);
+ CurrentLine->SetTangentVector(previousd3d,1);
+ Tgtbeg = Standard_False;
+ Tgtend = Standard_False;
+ SignOfBcoeff = PrevSignOfBcoeff = 0;
+ Uvap(1) = wd3[I].ustart;
+ Uvap(2) = wd3[I].vstart;
+ StepSign = 1;
+
+ // first step of advancement
+
+ Standard_Real d2dx = Abs(previousd2d.X());
+ Standard_Real d2dy = Abs(previousd2d.Y());
+ if (d2dx < tolerance(1)) {
+ PasC = pas * (VM-Vm)/d2dy;
+ }
+ else if (d2dy < tolerance(2)) {
+ PasC = pas * (UM-Um)/d2dx;
+ }
+ else {
+ PasC = pas * Min((UM-Um)/d2dx,(VM-Vm)/d2dy);
+ }
+
+ PasSav = PasC;
+
+ Arrive = Standard_False;
+ ArretAjout = Standard_False;
+ OnPrevTangency = Standard_False;
+ NbDivision = 0;
+ StatusPrecedent = IntWalk_OK;
+ while (!Arrive) { // as no test of stop is passed
+ Cadre=Cadrage(BornInf,BornSup,Uvap,PasC, StepSign); // border?
+#ifdef CHRONO
+ Chronrsnld.Start();
+#endif
+
+ //Standard_Boolean ExactStartSolution = Standard_False;
+ /*
+ for (Standard_Integer ind = 1; ind <= 2; ind++)
+ {
+ if (Uvap(ind) <= BornInf(ind)) Uvap(ind) = BornInf(ind);
+ else if (Uvap(ind) > BornSup(ind)) Uvap(ind) = BornSup(ind);
+ }
+ Func.Values(Uvap, FuncVal, D);
+ */
+ //if (FuncVal(1) >= GlobalValTol)
+ Rsnld.Perform(Func,Uvap,BornInf,BornSup);
+
+#ifdef CHRONO
+ Chronrsnld.Stop();
+#endif
+
+ if (Cadre) { // update of limits.
+ BornInf(1) = Um;BornSup(1) = UM;BornInf(2) = Vm;BornSup(2) = VM;
+ }
+ if (Rsnld.IsDone()) {
+ if (Abs(Func.Root()) > Func.Tolerance()) { // no solution for the tolerance
+ PasC = PasC/2.;
+ PasCu = Abs(PasC*previousd2d.X());
+ PasCv = Abs(PasC*previousd2d.Y());
+
+ if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
+ if (CurrentLine->NbPoints()==1) break;
+ Arrive = Standard_True;
+ CurrentLine->AddStatusFirstLast(Standard_False,
+ Standard_False,Standard_False);
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ Tgtend = Standard_True;
+ }
+ }
+ else { // there is a solution
+ math_Vector NewUv(1,2), OldUv(1,2);
+ Rsnld.Root(NewUv);
+ gp_Pnt2d prevPnt2d, NewPnt2d(NewUv(1),NewUv(2)), Pnt2dap(Uvap(1),Uvap(2));
+ prevPnt2d = previousPoint.ValueOnSurface(reversed);
+ gp_Vec2d PrevToAp(prevPnt2d, Pnt2dap);
+ gp_Vec2d PrevToNew(prevPnt2d, NewPnt2d);
+ if (PrevToAp * PrevToNew < 0. ||
+ PrevToNew.Magnitude()/2. > PrevToAp.Magnitude()) //solution is bad
+ {
+ for (Standard_Integer ind = 1; ind <= 2; ind++)
+ {
+ if (Uvap(ind) <= BornInf(ind)) Uvap(ind) = BornInf(ind);
+ else if (Uvap(ind) > BornSup(ind)) Uvap(ind) = BornSup(ind);
}
- else { // open
- wd2[I].etat = 12; // declare it open
- Tgtbeg = Tgtend;
- Tgtend = Standard_False;
- ArretAjout = Standard_False;
- StepSign = -1;
- StatusPrecedent = IntWalk_OK;
- PasC = PasSav;
- if (Status == IntWalk_ArretSurPointPrecedent) {
- OpenLine(0,Psol,Pnts1,Func,CurrentLine);
- }
- else {
- OpenLine(-lines.Length()-1,Psol,Pnts1,Func,CurrentLine);
- }
- if (Cadre && N==0) {
- Rajout = Standard_True;
- seqAjout.Append(-lines.Length()-1);
- }
- }
+ Func.Values(Uvap, FuncVal, D);
}
- else if ( Status == IntWalk_ArretSurPointPrecedent) {
- if (CurrentLine->NbPoints() == 1) { //cancel the line
- Arrive = Standard_False;
- break;
- }
- if (wd2[I].etat >12) { //the line should become open
- wd2[I].etat = 12; //declare it open
- ArretAjout = Standard_False;
- OpenLine(0,Psol,Pnts1,Func,CurrentLine);
- StepSign = -1;
+ else
+ Uvap = NewUv;
+
+ Arrive = TestArretPassageTang(Umult,Vmult,Uvap,I,Ipass);
+ if (Arrive) {//reset proper parameter to test the arrow.
+ Psol = CurrentLine->Value(1);
+ if (!reversed) {
+ Psol.ParametersOnS2(Uvap(1),Uvap(2));
+ }
+ else {
+ Psol.ParametersOnS1(Uvap(1),Uvap(2));
+ }
+ Cadre = Standard_False;
+ //in case if there is a frame and arrival at the same time
+ }
+ else { // modif jag 940615
+
+ if (Rajout) { // test on added points
+ ArretAjout = TestArretAjout(Func, Uvap, N, Psol, OnPrevTangency);
+ if (ArretAjout) {
+ if (N >0) {
+ Tgtend = lines.Value(N)->IsTangentAtEnd();
+ N = -N;
+ }
+ else {
+ Tgtend = lines.Value(-N)->IsTangentAtBegining();
+ }
+ Arrive = (wd3[I].etat == 12);
+ }
+ }
+
+ if (!ArretAjout&& Cadre) { // test on already marked points
+ if (CurrentLine->NbPoints() == 1) break; // cancel the line
+ TestArretCadre(Umult,Vmult,CurrentLine,Func,Uvap,N);
+// if (N==0) {
+ if (N <= 0) { // jag 941017
+ MakeWalkingPoint(2,Uvap(1),Uvap(2),Func,Psol);
+ Tgtend = Func.IsTangent(); // jag 940616
+ N = -N;
+ }
+ Arrive = (wd3[I].etat == 12); // the line is open
+ }
+ }
+ Status = TestDeflection(Func, Arrive,Uvap,StatusPrecedent,
+ NbDivision,PasC,StepSign,
+ CurrentLine->NbPoints(),ArretAjout,OnPrevTangency);
+ StatusPrecedent = Status;
+ if (Status == IntWalk_PasTropGrand) {// division of the step
+ Arrive = Standard_False;
+ ArretAjout = Standard_False;
+ Tgtend = Standard_False; // jag 940616
+ if (!reversed) {
+ previousPoint.ParametersOnS2(Uvap(1),Uvap(2));
+ }
+ else {
+ previousPoint.ParametersOnS1(Uvap(1),Uvap(2));
+ }
+ }
+ else if (ArretAjout || Cadre) {
+
+ if (Arrive) { // line s is open
+ CurrentLine->AddStatusLast(Standard_False);
+ if (Status != IntWalk_ArretSurPointPrecedent) {
+ CurrentLine->AddPoint(Psol);
+ }
+ if (Cadre && N==0) {
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
+
+ }
+ else { // open
+ wd3[I].etat = 12; // declare it open
+ Tgtbeg = Tgtend;
+ Tgtend = Standard_False;
+ ArretAjout = Standard_False;
+ StepSign = -1;
+ StatusPrecedent = IntWalk_OK;
+ PasC = PasSav;
+ if (Status == IntWalk_ArretSurPointPrecedent) {
+ OpenLine(0,Psol,Pnts1,Func,CurrentLine);
+ }
+ else {
+ OpenLine(-lines.Length()-1,Psol,Pnts1,Func,CurrentLine);
+ }
+ if (Cadre && N==0) {
+ Rajout = Standard_True;
+ seqAjout.Append(-lines.Length()-1);
+ }
+ }
+ }
+
+ else if ( Status == IntWalk_ArretSurPointPrecedent) {
+ if (CurrentLine->NbPoints() == 1) { //cancel the line
+ Arrive = Standard_False;
+ break;
+ }
+ if (wd3[I].etat >12) { //the line should become open
+ wd3[I].etat = 12; //declare it open
+ ArretAjout = Standard_False;
+ OpenLine(0,Psol,Pnts1,Func,CurrentLine);
+ StepSign = -1;
StatusPrecedent = IntWalk_OK;
- Arrive = Standard_False;
- PasC = PasSav;
- Rajout = Standard_True;
+ Arrive = Standard_False;
+ PasC = PasSav;
+ Rajout = Standard_True;
seqAjout.Append(-lines.Length()-1);
- }
- else { // line s is open
- Arrive =Standard_True;
- CurrentLine->AddStatusLast(Standard_False);
- Rajout = Standard_True;
+ }
+ else { // line s is open
+ Arrive = Standard_True;
+ CurrentLine->AddStatusLast(Standard_False);
+ Rajout = Standard_True;
seqAjout.Append(lines.Length()+1);
- }
- }
- else if (Arrive) {
- if (wd2[I].etat > 12) { //line closed good case
- CurrentLine->AddStatusFirstLast(Standard_True,
- Standard_False,Standard_False);
- CurrentLine->AddPoint(CurrentLine->Value(1));
- }
- else if (N >0) { //point of stop given at input
- PathPnt = Pnts1.Value(N);
- CurrentLine->AddStatusLast(Standard_True,N,PathPnt);
+ }
+ }
+ else if (Arrive) {
+ if (wd3[I].etat > 12) { //line closed good case
+ CurrentLine->AddStatusFirstLast(Standard_True,
+ Standard_False,Standard_False);
+ CurrentLine->AddPoint(CurrentLine->Value(1));
+ }
+ else if (N >0) { //point of stop given at input
+ PathPnt = Pnts1.Value(N);
+ CurrentLine->AddStatusLast(Standard_True,N,PathPnt);
AddPointInCurrentLine(N,PathPnt,CurrentLine);
- }
- }
- else if (Status == IntWalk_ArretSurPoint) {
- if (wd2[I].etat >12) { //line should become open
- wd2[I].etat = 12; //declare it open
- Tgtbeg = Standard_True;
- Tgtend = Standard_False;
- N= -lines.Length()-1;
- Psol.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
- OpenLine(N,Psol,Pnts1,Func,CurrentLine);
- StepSign = -1;
- Rajout = Standard_True;
- seqAjout.Append(N);
- StatusPrecedent = IntWalk_OK;
- Arrive = Standard_False;
- PasC = PasSav;
- }
- else {
- Arrive = Standard_True;
- if (Ipass!=0) { //point of passage, point of stop
- PathPnt = Pnts1.Value(Ipass);
- CurrentLine->AddStatusLast(Standard_True,Ipass,PathPnt);
- AddPointInCurrentLine(Ipass,PathPnt,CurrentLine);
+ }
+ }
+ else if (Status == IntWalk_ArretSurPoint && Func.IsTangent())
+ {
+ PrevSignOfBcoeff = SignOfBcoeff;
+ gp_Vec newd3d;
+ gp_Dir2d newd2d;
+ Standard_Boolean IsDiscriminantNull;
+ if (ComputeDirOfTangentialIntersection(Func, StepSignTangent,
+ IsDiscriminantNull, SignOfBcoeff,
+ newd3d, newd2d))
+ {
+ if (SignOfBcoeff == 0) //point of branching
+ {
+ //Status = IntWalk_ArretSurPoint;
}
- else {
- CurrentLine->AddStatusLast(Standard_False);
- IntSurf_PntOn2S newP;
- newP.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
- CurrentLine->AddPoint(newP);
+ else
+ {
+ if (PrevSignOfBcoeff == 0 ||
+ SignOfBcoeff == PrevSignOfBcoeff)
+ {
+ Status = IntWalk_OKtangent;
+ MakeWalkingPoint(2, Uvap(1), Uvap(2), Func, previousPoint);
+ previousd3d = newd3d;
+ previousd2d = newd2d;
+ CurrentLine->AddPoint(previousPoint);
+ }
+ else //change of sign of Bcoeff
+ {
+ MakeWalkingPoint(1, Uvap(1), Uvap(2), Func, Psol);
+ FindExactCuspPoint(Func, Psol,
+ PrevSignOfBcoeff, SignOfBcoeff);
+ Psol.ParametersOnSurface(reversed, Uvap(1), Uvap(2));
+ //Status = IntWalk_ArretSurPoint;
+ }
+ }
+ }
+ if (Status == IntWalk_ArretSurPoint) {
+ if (wd3[I].etat >12) { //line should become open
+ wd3[I].etat = 12; //declare it open
+ Tgtbeg = Standard_True;
+ Tgtend = Standard_False;
+ N= -lines.Length()-1;
+ Psol.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ OpenLine(N,Psol,Pnts1,Func,CurrentLine);
+ StepSign = -1;
+ SignOfBcoeff = PrevSignOfBcoeff = 0;
Rajout = Standard_True;
- seqAjout.Append(lines.Length()+1);
+ seqAjout.Append(N);
+ StatusPrecedent = IntWalk_OK;
+ Arrive = Standard_False;
+ PasC = PasSav;
+ }
+ else {
+ Arrive = Standard_True;
+ if (Ipass!=0) { //point of passage, point of stop
+ PathPnt = Pnts1.Value(Ipass);
+ CurrentLine->AddStatusLast(Standard_True,Ipass,PathPnt);
+ AddPointInCurrentLine(Ipass,PathPnt,CurrentLine);
+ }
+ else {
+ CurrentLine->AddStatusLast(Standard_False);
+ IntSurf_PntOn2S newP;
+ newP.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ CurrentLine->AddPoint(newP);
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
}
}
}
- else if (Status == IntWalk_OK) {
- if (Ipass!=0) CurrentLine->AddIndexPassing(Ipass);
- previousPoint.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
- previousd3d = Func.Direction3d();
- previousd2d = Func.Direction2d();
- CurrentLine->AddPoint(previousPoint);
- }
- else if (Status == IntWalk_PointConfondu)
- {
- aNbIter --;
- }
- }
- }
- else { //no numerical solution NotDone
- PasC = PasC/2.;
- PasCu = Abs(PasC*previousd2d.X());
- PasCv = Abs(PasC*previousd2d.Y());
-
- if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
+ else if (Status == IntWalk_OK) {
+ if (Ipass!=0) CurrentLine->AddIndexPassing(Ipass);
+ previousPoint.SetValue(Func.Point(),reversed,Uvap(1),Uvap(2));
+ //previousd3d = Func.Direction3d();
+ //previousd2d = Func.Direction2d();
+ CurrentLine->AddPoint(previousPoint);
+ }
+ }
+ }
+ else { //no numerical solution NotDone
+ PasC = PasC/2.;
+ PasCu = Abs(PasC*previousd2d.X());
+ PasCv = Abs(PasC*previousd2d.Y());
+
+ if (PasCu <= tolerance(1) && PasCv <= tolerance(2)) {
if (CurrentLine->NbPoints() == 1) break; // cancel the line
- Arrive = Standard_True;
- CurrentLine->AddStatusFirstLast(Standard_False,Standard_False,
- Standard_False);
- Tgtend = Standard_True;
- Rajout = Standard_True;
- seqAjout.Append(lines.Length()+1);
- }
- }
-
- if(aNbIter < 0)
- break;
+ Arrive = Standard_True;
+ CurrentLine->AddStatusFirstLast(Standard_False,Standard_False,
+ Standard_False);
+ Tgtend = Standard_True;
+ Rajout = Standard_True;
+ seqAjout.Append(lines.Length()+1);
+ }
+ }
}// end of started line
if (Arrive) {
- CurrentLine->SetTangencyAtBegining(Tgtbeg);
- CurrentLine->SetTangencyAtEnd(Tgtend);
-
- lines.Append(CurrentLine);
- wd2[I].etat=-wd2[I].etat; //mark point as processed
+ CurrentLine->SetTangencyAtBegining(Tgtbeg);
+ CurrentLine->SetTangencyAtEnd(Tgtend);
+ CurrentLine->SetTangency(IsTangentialIntersection);
+
+ lines.Append(CurrentLine);
+ wd3[I].etat = -wd3[I].etat; //mark point as processed
}
- } //end of processing of start point
- } //end of all start points
+ } //end of processing of tangent point
+ } //end of all tangent points
}
+
+
+
+
+
+
// because the angle is too great in 2d (U4)
}
+
IntWalk_StatusDeflection IntWalk_IWalking::TestDeflection
(TheIWFunction& sp,
const Standard_Boolean Finished,
const IntWalk_StatusDeflection StatusPrecedent,
Standard_Integer& NbDivision,
Standard_Real& Step,
- const Standard_Integer StepSign)
+ const Standard_Integer StepSign,
+ const Standard_Integer CurNbPoints,
+ const Standard_Boolean ArretAjout,
+ const Standard_Boolean OnPrevTangency)
{
// Check the step of advancement, AND recalculate this step :
//
//-- if epsilon is great enough (1e-11). In this case one loops
//-- without ever changing the values sent to Rsnld.
//---------------------------------------------------------------------------------
- Standard_Real Paramu = 0.0, Paramv = 0.0;
-
- if (!reversed) {
- previousPoint.ParametersOnS2(Paramu, Paramv);
- }
- else
- {
- previousPoint.ParametersOnS1(Paramu, Paramv);
- }
-
- const Standard_Real Du = UV(1) - Paramu;
- const Standard_Real Dv = UV(2) - Paramv;
- const Standard_Real Duv = Du * Du + Dv * Dv;
+ Standard_Real Paramu = 0., Paramv = 0., StepU = 0., StepV = 0.;
+ Standard_Real Cosi = 0., Cosi2 = 0., Norme = 0.;
gp_Vec Corde(previousPoint.Value(), sp.Point());
- const Standard_Real Norme = Corde.SquareMagnitude(),
- aTol = epsilon*Precision::PConfusion();
-
- //if ((++NbPointsConfondusConsecutifs < 10) && (Norme <= epsilon)) { // the square is already taken in the constructor
- if ((Norme <= epsilon) && ((Duv <= aTol) || (StatusPrecedent != IntWalk_OK)))
- { // the square is already taken in the constructor
- Status = IntWalk_PointConfondu;
- if (StatusPrecedent == IntWalk_PasTropGrand) {
- return IntWalk_ArretSurPointPrecedent;
+ Norme = Corde.SquareMagnitude();
+// if (Norme <= epsilon*epsilon) {
+// if (Norme <= epsilon) { // the square is already taken in the constructor
+ Standard_Real TolNorm = epsilon; //gp::Resolution();
+ if (CurNbPoints == 1 && ArretAjout && OnPrevTangency)
+ TolNorm = 1.e-10;
+ if (Norme <= TolNorm) {
+ if (CurNbPoints == 1 && Status == IntWalk_OK &&
+ !ArretAjout && !OnPrevTangency)
+ epsilon = Norme / 4.;
+ else
+ {
+ Status = IntWalk_PointConfondu;
+ if (StatusPrecedent == IntWalk_PasTropGrand)
+ return IntWalk_ArretSurPointPrecedent;
}
}
else {
- Standard_Real Cosi = Corde * previousd3d;
- Standard_Real Cosi2 = 0.0;
-
- if (Cosi*StepSign >= 0.) {// angle 3d <= pi/2 !!!!
- const Standard_Real aDiv = previousd3d.SquareMagnitude()*Norme;
- if(aDiv == 0)
- return Status;
- Cosi2 = Cosi * Cosi / aDiv;
+ Cosi = Corde * previousd3d;
+ if (Cosi*StepSign < 0.) { // angle 3d > pi/2 !!!!
+ Cosi2 = 0.;
+ }
+ else {
+ Cosi2 = Cosi * Cosi / previousd3d.SquareMagnitude() / Norme;
}
if (Cosi2 < CosRef3D) { //angle 3d too great
Step = Step /2.0;
- Standard_Real StepU = Abs(Step*previousd2d.X()),
- StepV = Abs(Step*previousd2d.Y());
+ StepU = Abs(Step*previousd2d.X());
+ StepV = Abs(Step*previousd2d.Y());
if (StepU < tolerance(1) && StepV < tolerance(2))
- Status = IntWalk_ArretSurPointPrecedent;
+ Status = IntWalk_ArretSurPointPrecedent;
else
- Status = IntWalk_PasTropGrand;
+ Status = IntWalk_PasTropGrand;
return Status;
}
}
- const Standard_Real aMinTolU = 0.1*Abs(Step*previousd2d.X()),
- aMinTolV = 0.1*Abs(Step*previousd2d.Y());
-
- if ((Abs(Du) < Min(tolerance(1), aMinTolU)) && (Abs(Dv) < Min(tolerance(2), aMinTolV)))
+ if (!reversed) {
+ previousPoint.ParametersOnS2(Paramu, Paramv);
+ }
+ else {
+ previousPoint.ParametersOnS1(Paramu, Paramv);
+ }
+ Standard_Real Du = UV(1) - Paramu;
+ Standard_Real Dv = UV(2) - Paramv;
+ Standard_Real Duv = Du * Du + Dv * Dv;
+ Standard_Real TolDu = tolerance(1), TolDv = tolerance(2);
+ if (CurNbPoints == 1 && ArretAjout && OnPrevTangency)
+ TolDu = TolDv = 1.e-7;
+ if (Abs(Du) < TolDu && Abs(Dv) < TolDv)
{
- //Thin shapes (for which Ulast-Ufirst or/and Vlast-Vfirst is quite small)
- //exists (see bug #25820). In this case, step is quite small too.
- //Nevertheless, it not always means that we mark time. Therefore, Du and Dv
- //must consider step (aMinTolU and aMinTolV parameters).
-
- return IntWalk_ArretSurPointPrecedent; //confused point 2d
+ if (CurNbPoints == 1 && Status == IntWalk_OK &&
+ !ArretAjout && !OnPrevTangency)
+ {
+ tolerance(1) = Du/2.;
+ tolerance(2) = Dv/2.;
+ if (tolerance(1) <= gp::Resolution())
+ tolerance(1) = tolerance(2);
+ if (tolerance(2) <= gp::Resolution())
+ tolerance(2) = tolerance(1);
+ if (tolerance(1) <= gp::Resolution() &&
+ tolerance(2) <= gp::Resolution())
+ {
+ Status = IntWalk_PointConfondu;
+ if (StatusPrecedent == IntWalk_PasTropGrand)
+ Status = IntWalk_ArretSurPointPrecedent;
+ return Status;
+ }
+ }
+ else
+ return IntWalk_ArretSurPointPrecedent; //confused point 2d
}
-
- Standard_Real Cosi = StepSign * (Du * previousd2d.X() + Dv * previousd2d.Y());
-
+ Cosi = StepSign * (Du * previousd2d.X() +
+ Dv * previousd2d.Y());
if (Cosi < 0 && Status == IntWalk_PointConfondu)
return IntWalk_ArretSurPointPrecedent; // leave as step back
// with confused point
- if (sp.IsTangent())
- return IntWalk_ArretSurPoint;
+ if (IsTangentialIntersection)
+ {
+ if (sp.IsTangentSmooth())
+ return IntWalk_ArretSurPoint;
+ }
+ else
+ {
+ if (sp.IsTangent())
+ return IntWalk_ArretSurPoint;
+ }
//if during routing one has subdivided more than MaxDivision for each
//previous step, bug on the square; do nothing (experience U4)
- if ((NbDivision < MaxDivision) && (Status != IntWalk_PointConfondu) &&
- (StatusPrecedent!= IntWalk_PointConfondu))
- {
- Standard_Real Cosi2 = Cosi * Cosi / Duv;
+ if (NbDivision < MaxDivision &&
+ Status != IntWalk_PointConfondu &&
+ StatusPrecedent!= IntWalk_PointConfondu ) {
+ Cosi2 = Cosi * Cosi / Duv;
if (Cosi2 < CosRef2D || Cosi < 0 ) {
Step = Step / 2.0;
- Standard_Real StepU = Abs(Step*previousd2d.X()),
- StepV = Abs(Step*previousd2d.Y());
+ StepU = Abs(Step*previousd2d.X());
+ StepV = Abs(Step*previousd2d.Y());
if (StepU < tolerance(1) && StepV < tolerance(2))
- Status = IntWalk_ArretSurPointPrecedent;
+ Status = IntWalk_ArretSurPointPrecedent;
else
- Status = IntWalk_PasTropGrand;
+ Status = IntWalk_PasTropGrand;
NbDivision = NbDivision + 1;
return Status;
}
Cosi2 = Cosi * Cosi / sp.Direction3d().SquareMagnitude() / Norme;
if (Cosi2 < CosRef3D ){ //angle 3d too great
Step = Step / 2.;
- Standard_Real StepU = Abs(Step*previousd2d.X()),
- StepV = Abs(Step*previousd2d.Y());
+ StepU = Abs(Step*previousd2d.X());
+ StepV = Abs(Step*previousd2d.Y());
if (StepU < tolerance(1) && StepV < tolerance(2))
- Status = IntWalk_ArretSurPoint;
+ Status = IntWalk_ArretSurPoint;
else
- Status = IntWalk_PasTropGrand;
+ Status = IntWalk_PasTropGrand;
return Status;
}
Cosi = Du * sp.Direction2d().X() +
- Dv * sp.Direction2d().Y();
+ Dv * sp.Direction2d().Y();
Cosi2 = Cosi * Cosi / Duv;
if (Cosi2 < CosRef2D ||
- sp.Direction2d() * previousd2d < 0) {
- //angle 2d too great or change the side
- Step = Step / 2.;
- Standard_Real StepU = Abs(Step*previousd2d.X()),
- StepV = Abs(Step*previousd2d.Y());
- if (StepU < tolerance(1) && StepV < tolerance(2))
- Status = IntWalk_ArretSurPointPrecedent;
- else
- Status = IntWalk_PasTropGrand;
- return Status;
+ sp.Direction2d() * previousd2d < 0) {
+ //angle 2d too great or change the side
+ Step = Step / 2.;
+ StepU = Abs(Step*previousd2d.X());
+ StepV = Abs(Step*previousd2d.Y());
+ if (StepU < tolerance(1) && StepV < tolerance(2))
+ Status = IntWalk_ArretSurPointPrecedent;
+ else
+ Status = IntWalk_PasTropGrand;
+ return Status;
}
}
if (!Finished) {
- if (Status == IntWalk_PointConfondu)
- {
- Standard_Real StepU = Min(Abs(1.5 * Du),pas*(UM-Um)),
- StepV = Min(Abs(1.5 * Dv),pas*(VM-Vm));
+
+ if (Status == IntWalk_PointConfondu) {
+ StepU = Min(Abs(1.5 * Du),pas*(UM-Um));
+ StepV = Min(Abs(1.5 * Dv),pas*(VM-Vm));
Standard_Real d2dx = Abs(previousd2d.X());
Standard_Real d2dy = Abs(previousd2d.Y());
- if (d2dx < tolerance(1))
- {
- Step = StepV/d2dy;
+ Standard_Real PrevStep = Step;
+ if (d2dx < tolerance(1)) {
+ Step = StepV/d2dy;
}
- else if (d2dy < tolerance(2))
- {
- Step = StepU/d2dx;
+ else if (d2dy < tolerance(2)) {
+ Step = StepU/d2dx;
}
- else
- {
- Step = Min(StepU/d2dx,StepV/d2dy);
+ else {
+ Step = Min(StepU/d2dx,StepV/d2dy);
}
+ if (Step <= PrevStep) //no chance for increasing of real step
+ Status = IntWalk_ArretSurPointPrecedent;
}
- else
- {
- // estimate the current vector.
- // if vector/2<=current vector<= vector it is considered that the criterion
- // is observed.
- // otherwise adjust the step depending on the previous step
-
- /*
- Standard_Real Dist = Sqrt(Norme)/3.;
- TColgp_Array1OfPnt Poles(1,4);
- gp_Pnt POnCurv,Milieu;
- Poles(1) = previousPoint.Value();
- Poles(4) = sp.Point();
- Poles(2) = Poles(1).XYZ() +
- StepSign * Dist* previousd3d.Normalized().XYZ();
- Poles(3) = Poles(4).XYZ() -
- StepSign * Dist*sp.Direction3d().Normalized().XYZ();
- BzCLib::PntPole(0.5,Poles,POnCurv);
- Milieu = (Poles(1).XYZ() + Poles(4).XYZ())*0.5;
- // FlecheCourante = Milieu.Distance(POnCurv);
- Standard_Real FlecheCourante = Milieu.SquareDistance(POnCurv);
- */
-
- // Direct calculation :
- // POnCurv=(((p1+p2)/2.+(p2+p3)/2.)/2. + ((p2+p3)/2.+(p3+P4)/2.)/2.)/2.
- // either POnCurv = p1/8. + 3.p2/8. + 3.p3/8. + p4/8.
- // Or p2 = p1 + lambda*d1 et p3 = p4 - lambda*d4
- // So POnCurv = (p1 + p4)/2. + 3.*(lambda d1 - lambda d4)/8.
- // Calculate the deviation with (p1+p4)/2. . So it is just necessary to calculate
- // the norm (square) of 3.*lambda (d1 - d4)/8.
- // either the norm of :
- // 3.*(Sqrt(Norme)/3.)*StepSign*(d1-d4)/8.
- // which produces, takin the square :
- // Norme * (d1-d4).SquareMagnitude()/64.
+ else {
+// estimate the current vector.
+// if vector/2<=current vector<= vector it is considered that the criterion
+// is observed.
+// otherwise adjust the step depending on the previous step
+
+/*
+ Standard_Real Dist = Sqrt(Norme)/3.;
+ TColgp_Array1OfPnt Poles(1,4);
+ gp_Pnt POnCurv,Milieu;
+ Poles(1) = previousPoint.Value();
+ Poles(4) = sp.Point();
+ Poles(2) = Poles(1).XYZ() +
+ StepSign * Dist* previousd3d.Normalized().XYZ();
+ Poles(3) = Poles(4).XYZ() -
+ StepSign * Dist*sp.Direction3d().Normalized().XYZ();
+ BzCLib::PntPole(0.5,Poles,POnCurv);
+ Milieu = (Poles(1).XYZ() + Poles(4).XYZ())*0.5;
+// FlecheCourante = Milieu.Distance(POnCurv);
+ Standard_Real FlecheCourante = Milieu.SquareDistance(POnCurv);
+*/
+
+ // Direct calculation :
+ // POnCurv=(((p1+p2)/2.+(p2+p3)/2.)/2. + ((p2+p3)/2.+(p3+P4)/2.)/2.)/2.
+ // either POnCurv = p1/8. + 3.p2/8. + 3.p3/8. + p4/8.
+ // Or p2 = p1 + lambda*d1 et p3 = p4 - lambda*d4
+ // So POnCurv = (p1 + p4)/2. + 3.*(lambda d1 - lambda d4)/8.
+ // Calculate the deviation with (p1+p4)/2. . So it is just necessary to calculate
+ // the norm (square) of 3.*lambda (d1 - d4)/8.
+ // either the norm of :
+ // 3.*(Sqrt(Norme)/3.)*StepSign*(d1-d4)/8.
+ // which produces, takin the square :
+ // Norme * (d1-d4).SquareMagnitude()/64.
Standard_Real FlecheCourante =
(previousd3d.Normalized().XYZ()-sp.Direction3d().Normalized().XYZ()).SquareModulus()*Norme/64.;
// if (FlecheCourante <= 0.5*fleche) {
- if (FlecheCourante <= 0.25*fleche*fleche)
- {
- Standard_Real d2dx = Abs(sp.Direction2d().X());
- Standard_Real d2dy = Abs(sp.Direction2d().Y());
-
- Standard_Real StepU = Min(Abs(1.5*Du),pas*(UM-Um)),
- StepV = Min(Abs(1.5*Dv),pas*(VM-Vm));
-
- if (d2dx < tolerance(1))
- {
- Step = StepV/d2dy;
- }
- else if (d2dy < tolerance(2))
- {
- Step = StepU/d2dx;
- }
- else
- {
- Step = Min(StepU/d2dx,StepV/d2dy);
- }
+ if (FlecheCourante <= 0.25*fleche*fleche) {
+
+ Standard_Real d2dx = Abs(sp.Direction2d().X());
+ Standard_Real d2dy = Abs(sp.Direction2d().Y());
+
+ StepU = Min(Abs(1.5*Du),pas*(UM-Um));
+ StepV = Min(Abs(1.5*Dv),pas*(VM-Vm));
+
+ if (d2dx < tolerance(1)) {
+ Step = StepV/d2dy;
+ }
+ else if (d2dy < tolerance(2)) {
+ Step = StepU/d2dx;
+ }
+ else {
+ Step = Min(StepU/d2dx,StepV/d2dy);
+ }
+
}
- else
- {
- //if (FlecheCourante > fleche) { // step too great
- if (FlecheCourante > fleche*fleche)
- { // step too great
- Step = Step /2.;
- Standard_Real StepU = Abs(Step*previousd2d.X()),
- StepV = Abs(Step*previousd2d.Y());
-
+ else {
+// if (FlecheCourante > fleche) { // step too great
+ if (FlecheCourante > fleche*fleche) { // step too great
+ Step = Step /2.;
+ StepU = Abs(Step*previousd2d.X());
+ StepV = Abs(Step*previousd2d.Y());
if (StepU < tolerance(1) && StepV < tolerance(2))
Status = IntWalk_ArretSurPointPrecedent;
else
Status = IntWalk_PasTropGrand;
- }
- else
- {
- Standard_Real d2dx = Abs(sp.Direction2d().X());
- Standard_Real d2dy = Abs(sp.Direction2d().Y());
-
- Standard_Real StepU = Min(Abs(1.5*Du),pas*(UM-Um)),
- StepV = Min(Abs(1.5*Dv),pas*(VM-Vm));
-
- if (d2dx < tolerance(1))
- {
- Step = Min(Step,StepV/d2dy);
- }
- else if (d2dy < tolerance(2))
- {
- Step = Min(Step,StepU/d2dx);
- }
- else
- {
- Step = Min(Step,Min(StepU/d2dx,StepV/d2dy));
- }
- }
+ }
+ else {
+ Standard_Real d2dx = Abs(sp.Direction2d().X());
+ Standard_Real d2dy = Abs(sp.Direction2d().Y());
+
+ StepU = Min(Abs(1.5*Du),pas*(UM-Um));
+ StepV = Min(Abs(1.5*Dv),pas*(VM-Vm));
+
+ if (d2dx < tolerance(1)) {
+ Step = Min(Step,StepV/d2dy);
+ }
+ else if (d2dy < tolerance(2)) {
+ Step = Min(Step,StepU/d2dx);
+ }
+ else {
+ Step = Min(Step,Min(StepU/d2dx,StepV/d2dy));
+ }
+ }
}
}
}
+ else if (Status == IntWalk_PointConfondu) //finish
+ Status = IntWalk_ArretSurPointPrecedent;
+
return Status;
}
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
+#include <Geom2d_Line.hxx>
+#include <GCE2d_MakeLine.hxx>
+
+
#ifndef OCCT_DEBUG
#define No_Standard_RangeError
#define No_Standard_OutOfRange
#endif
+const Standard_Real TolDiscr = 1.e-8;
+const Standard_Real TolB = 1.e-5;
+
+static Standard_Integer RealSign(const Standard_Real aValue)
+{
+ if (aValue >= 0.)
+ return 1;
+ else return -1;
+}
+
+static Standard_Boolean ComputeB11orB22(TheIWFunction& sp,
+ Standard_Boolean& IsDiscriminantNull,
+ Standard_Integer& SignOfBcoeff,
+ gp_Vec& Pu,
+ gp_Vec& Pv,
+ Standard_Real& B11,
+ Standard_Real& B22,
+ Standard_Real& B12)
+{
+ gp_Vec Puu, Puv, Pvv;
+ gp_Vec Iu, Iv, Iuu, Iuv, Ivv;
+ gp_Vec NormalP, NormalI;
+
+ if (!sp.DerivativesAndNormalOnPSurf(Pu, Pv, NormalP, Puu, Pvv, Puv))
+ return Standard_False;
+ if (!sp.DerivativesAndNormalOnISurf(Iu, Iv, NormalI, Iuu, Ivv, Iuv))
+ return Standard_False;
+
+ Standard_Real Lp, Mp, Np, Li, Mi, Ni; //second fundamental form coefficients
+ Lp = Puu * NormalP;
+ Mp = Puv * NormalP;
+ Np = Pvv * NormalP;
+ Li = Iuu * NormalI;
+ Mi = Iuv * NormalI;
+ Ni = Ivv * NormalI;
+
+ gp_Vec Normal;
+ if (NormalP * NormalI < 0.)
+ NormalI.Reverse();
+ Normal.SetXYZ(0.5*(NormalP.XYZ() + NormalI.XYZ()));
+ Normal.Normalize();
+
+ Standard_Real A11, A12, A21, A22;
+ Standard_Real NormIdotNorm = (Iu ^ Iv) * Normal;
+ A11 = ((Pu ^ Iv) * Normal) / NormIdotNorm;
+ A12 = ((Pv ^ Iv) * Normal) / NormIdotNorm;
+ A21 = ((Iu ^ Pu) * Normal) / NormIdotNorm;
+ A22 = ((Iu ^ Pv) * Normal) / NormIdotNorm;
+
+ //Standard_Real B11, B12, B22;
+ B11 = A11*A11*Li + 2*A11*A21*Mi + A21*A21*Ni - Lp;
+ B12 = A11*A12*Li + (A11*A22 + A21*A12)*Mi + A21*A22*Ni - Mp;
+ B22 = A12*A12*Li + 2*A12*A22*Mi + A22*A22*Ni - Np;
+
+ Standard_Real Discriminant = B12*B12 - B11*B22;
+
+ if (Abs(Discriminant) < TolDiscr)
+ {
+ IsDiscriminantNull = Standard_True;
+ if (Abs(B11) <= TolB && Abs(B22) <= TolB)
+ {
+#ifdef DRAW
+ cout<<"Possible branching"<<endl<<endl;
+#endif
+ SignOfBcoeff = 0;
+ }
+ else
+ {
+ gp_Vec NewPreviousD3d;
+ gp_Dir2d NewPreviousD2d;
+ if (Abs(B11) > TolB)
+ {
+#ifdef DRAW
+ cout<<"B11 = "<<B11<<endl;
+#endif
+ SignOfBcoeff = RealSign(B11);
+ }
+ else
+ {
+#ifdef DRAW
+ cout<<"B22 = "<<B22<<endl;
+#endif
+ SignOfBcoeff = RealSign(B22);
+ }
+ }
+ }
+ else
+ {
+ IsDiscriminantNull = Standard_False;
+#ifdef DRAW
+ cout<<"Discriminant = "<<Discriminant<<endl;
+#endif
+ }
+ return Standard_True;
+}
+
void IntWalk_IWalking::AddPointInCurrentLine
(const Standard_Integer N,
const ThePointOfPath& PathPnt,
IntSurf_PntOn2S& Psol )
{
-
// Case == 1 : make a WalkinkPoint.
// Case == 2 : make a WalkinkPoint.
// The computation of the tangency on is done
UV(1) = U;
UV(2) = V;
sp.Values(UV, FF, DD);
- MakeWalkingPoint(Case - 10, U, V, sp, Psol);
+ MakeWalkingPoint(Case - 10, U, V, sp, Psol);
}
else {
Standard_ConstructionError::Raise();
}
+}
-
+Standard_Boolean
+ IntWalk_IWalking::ComputeDirOfTangentialIntersection(TheIWFunction& sp,
+ Standard_Integer& StepSignTangent,
+ Standard_Boolean& IsDiscriminantNull,
+ Standard_Integer& SignOfBcoeff,
+ gp_Vec& newd3d,
+ gp_Dir2d& newd2d)
+{
+ gp_Vec Pu, Pv;
+ Standard_Real B11, B22, B12;
+ if (!ComputeB11orB22(sp, IsDiscriminantNull, SignOfBcoeff,
+ Pu, Pv, B11, B22, B12))
+ return Standard_False;
+
+ if (IsDiscriminantNull)
+ {
+ if (SignOfBcoeff != 0)
+ {
+ gp_Vec NewPreviousD3d;
+ gp_Dir2d NewPreviousD2d;
+ if (Abs(B11) > TolB)
+ {
+#ifdef DRAW
+ cout<<"B11 = "<<B11<<endl;
+#endif
+ Standard_Real CoefPu = -B12/B11;
+ NewPreviousD3d = CoefPu*Pu + Pv;
+ NewPreviousD3d.Normalize();
+ NewPreviousD2d = gp_Dir2d(CoefPu, 1.);
+ }
+ else
+ {
+#ifdef DRAW
+ cout<<"B22 = "<<B22<<endl;
+#endif
+ Standard_Real CoefPv = -B12/B22;
+ NewPreviousD3d = Pu + CoefPv*Pv;
+ NewPreviousD3d.Normalize();
+ NewPreviousD2d = gp_Dir2d(1., CoefPv);
+ }
+
+ if (!IsTangentialIntersection)
+ {
+ IsTangentialIntersection = Standard_True;
+ if (NewPreviousD3d * previousd3d < 0)
+ StepSignTangent = -1;
+ else
+ StepSignTangent = 1;
+ }
+ newd3d = StepSignTangent * NewPreviousD3d;
+ newd2d = StepSignTangent * NewPreviousD2d;
+ }
+ }
+ return Standard_True;
}
+void IntWalk_IWalking::FindExactCuspPoint(TheIWFunction& sp,
+ IntSurf_PntOn2S& Psol,
+ const Standard_Integer SignFirst,
+ const Standard_Integer /*SignLast*/)
+{
+ IntSurf_PntOn2S EndPoint = Psol;
+
+ IntSurf_PntOn2S Pfirst, Plast;
+
+ Standard_Real newU, newV;
+ IntSurf_PntOn2S newPoint;
+
+ Pfirst = previousPoint;
+ Plast = EndPoint;
+
+ Standard_Integer newSign = 0;
+
+ for (;;)
+ {
+ Standard_Real Ufirst, Vfirst, Ulast, Vlast;
+ Pfirst.ParametersOnSurface(reversed, Ufirst, Vfirst);
+ Plast.ParametersOnSurface(reversed, Ulast, Vlast);
+
+ newU = 0.5*(Ufirst + Ulast);
+ newV = 0.5*(Vfirst + Vlast);
+
+ if (Abs(newU - Ufirst) < tolerance(1) &&
+ Abs(newV - Vfirst) < tolerance(2))
+ break;
+
+ MakeWalkingPoint(11, newU, newV, sp, newPoint);
+ Standard_Boolean IsDiscriminantNull;
+ gp_Vec Pu, Pv;
+ Standard_Real B11, B22, B12;
+ ComputeB11orB22(sp, IsDiscriminantNull, newSign,
+ Pu, Pv, B11, B22, B12);
+
+ if (newSign == 0)
+ break;
+
+ if (newSign == SignFirst)
+ Pfirst = newPoint;
+ else //newSign == SignLast
+ Plast = newPoint;
+ }
+
+ Psol = newPoint;
+}
void IntWalk_IWalking::OpenLine(const Standard_Integer N,
previousPoint.ParametersOnS1(UV(1),UV(2));
}
sp.Values(UV, FF, DD);
- previousd3d = sp.Direction3d();
- previousd2d = sp.Direction2d();
+ if (sp.IsTangent())
+ {
+ IsTangentialIntersection = Standard_True;
+ Standard_Integer theSign = 1;
+ Standard_Integer theSignOfBcoeff = 0;
+ gp_Vec newd3d;
+ gp_Dir2d newd2d;
+ Standard_Boolean IsDiscriminantNull;
+ if (!ComputeDirOfTangentialIntersection(sp, theSign,
+ IsDiscriminantNull, theSignOfBcoeff,
+ newd3d, newd2d))
+ StdFail_UndefinedDerivative::Raise();
+ previousd3d = newd3d;
+ previousd2d = newd2d;
+ }
+ else
+ {
+ IsTangentialIntersection = Standard_False;
+ previousd3d = sp.Direction3d();
+ previousd2d = sp.Direction2d();
+ }
if (N>0) { //departure point given at input
PathPnt = Pnts1.Value(N);
break;
}
case IntWalk_OK:
+ case IntWalk_OKtangent:
case IntWalk_ArretSurPoint://006
{
//=======================================================
break;
}
case IntWalk_OK:
+ case IntWalk_OKtangent:
case IntWalk_ArretSurPoint:
{
//
IntWalk_PointConfondu,
IntWalk_ArretSurPointPrecedent,
IntWalk_ArretSurPoint,
-IntWalk_OK
+IntWalk_OK,
+IntWalk_OKtangent
};
#endif // _IntWalk_StatusDeflection_HeaderFile
projects / occt-copy.git / commitdiff