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f6b08ecf71
Subdivision of curve parametric interval based on deflection criteria is added for curve type OtherCurve in Extrema_GExtPC.gxx. Algorithm of subdivision is implemented in Extrema_Curve(2d)Tool.cxx New Draw command projpcurve for projection of point on CurveOnSurface is added in SWDRAW_ShapeAnalysis.cxx projpcurve is modified to reflect "start parameter" in usage message and Draw help.
184 lines
4.2 KiB
C++
184 lines
4.2 KiB
C++
// Created on: 1998-02-26
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// Created by: Roman BORISOV
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// Copyright (c) 1998-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <Adaptor3d_HCurve.hxx>
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#include <GeomFill_SnglrFunc.hxx>
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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#include <Precision.hxx>
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#include <Standard_DomainError.hxx>
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#include <Standard_NotImplemented.hxx>
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#include <Standard_OutOfRange.hxx>
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GeomFill_SnglrFunc::GeomFill_SnglrFunc(const Handle(Adaptor3d_HCurve)& HC) :
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myHCurve(HC), ratio(1)
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{
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}
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void GeomFill_SnglrFunc::SetRatio(const Standard_Real Ratio)
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{
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ratio = Ratio;
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}
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Standard_Real GeomFill_SnglrFunc::FirstParameter() const
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{
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return myHCurve->FirstParameter();
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}
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Standard_Real GeomFill_SnglrFunc::LastParameter() const
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{
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return myHCurve->LastParameter();
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}
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Standard_Integer GeomFill_SnglrFunc::NbIntervals(const GeomAbs_Shape S) const
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{
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GeomAbs_Shape HCS=GeomAbs_C0;
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if (S == GeomAbs_C0)
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{
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HCS = GeomAbs_C2;
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}
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else if (S == GeomAbs_C1)
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{
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HCS = GeomAbs_C3;
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}
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else if (S >= GeomAbs_C2)
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{
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HCS = GeomAbs_CN;
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}
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return myHCurve->NbIntervals(HCS);
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}
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void GeomFill_SnglrFunc::Intervals(TColStd_Array1OfReal& T,const GeomAbs_Shape S) const
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{
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GeomAbs_Shape HCS=GeomAbs_C0;
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if (S == GeomAbs_C0)
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{
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HCS = GeomAbs_C2;
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}
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else if (S == GeomAbs_C1)
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{
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HCS = GeomAbs_C3;
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}
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else if (S >= GeomAbs_C2)
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{
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HCS = GeomAbs_CN;
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}
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myHCurve->Intervals(T, HCS);
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}
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Standard_Boolean GeomFill_SnglrFunc::IsPeriodic() const
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{
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return myHCurve->IsPeriodic();
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}
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Standard_Real GeomFill_SnglrFunc::Period() const
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{
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return myHCurve->Period();
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}
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gp_Pnt GeomFill_SnglrFunc::Value(const Standard_Real U) const
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{
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gp_Pnt C;
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gp_Vec DC, D2C;
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myHCurve->D2(U, C, DC, D2C);
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DC *= ratio;
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return gp_Pnt(DC.Crossed(D2C).XYZ());
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}
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void GeomFill_SnglrFunc::D0(const Standard_Real U,gp_Pnt& P) const
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{
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gp_Pnt C;
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gp_Vec DC, D2C;
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myHCurve->D2(U, C, DC, D2C);
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DC *= ratio;
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P = gp_Pnt(DC.Crossed(D2C).XYZ());
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}
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void GeomFill_SnglrFunc::D1(const Standard_Real U,gp_Pnt& P,gp_Vec& V) const
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{
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gp_Pnt C;
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gp_Vec DC, D2C, D3C;
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myHCurve->D3(U, C, DC, D2C, D3C);
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DC *= ratio;
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P = gp_Pnt(DC.Crossed(D2C).XYZ());
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V = DC.Crossed(D3C);
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}
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void GeomFill_SnglrFunc::D2(const Standard_Real U,gp_Pnt& P,gp_Vec& V1,gp_Vec& V2) const
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{
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gp_Pnt C;
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gp_Vec DC, D2C, D3C, D4C;
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myHCurve->D3(U, C, DC, D2C, D3C);
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P = gp_Pnt(DC.Crossed(D2C).XYZ());
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V1 = DC.Crossed(D3C);
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D4C = myHCurve->DN(U, 4);
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V2 = D2C.Crossed(D3C) + DC.Crossed(D4C);
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P.ChangeCoord() *= ratio;
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V1 *= ratio;
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V2 *= ratio;
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}
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void GeomFill_SnglrFunc::D3(const Standard_Real U,gp_Pnt& P,gp_Vec& V1,gp_Vec& V2,gp_Vec& V3) const
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{
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gp_Vec DC, D2C, D3C, D4C, D5C;
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myHCurve->D3(U, P, DC, D2C, D3C);
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D4C = myHCurve->DN(U, 4);
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D5C = myHCurve->DN(U, 5);
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P = gp_Pnt(DC.Crossed(D2C).XYZ()).ChangeCoord()*ratio;
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V1 = DC.Crossed(D3C)*ratio;
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V2 = (D2C.Crossed(D3C) + DC.Crossed(D4C))*ratio;
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V3 = (DC.Crossed(D5C) + D2C.Crossed(D4C)*2)*ratio;
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}
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gp_Vec GeomFill_SnglrFunc::DN(const Standard_Real U,const Standard_Integer N) const
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{
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Standard_RangeError_Raise_if (N < 1, "Exception: Geom2d_OffsetCurve::DN(). N<1.");
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gp_Vec D1C, D2C, D3C;
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gp_Pnt C;
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switch(N)
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{
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case 1:
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D1(U,C,D1C);
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return D1C;
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case 2:
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D2(U,C,D1C,D2C);
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return D2C;
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case 3:
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D3(U,C,D1C,D2C,D3C);
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return D3C;
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default:
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throw Standard_NotImplemented("Exception: Derivative order is greater than 3. "
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"Cannot compute of derivative.");
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}
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}
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Standard_Real GeomFill_SnglrFunc::Resolution(const Standard_Real R3D) const
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{
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return Precision::Parametric(R3D);
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}
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GeomAbs_CurveType GeomFill_SnglrFunc::GetType() const
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{
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return GeomAbs_OtherCurve;
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}
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