1 // Created on: 1997-11-06
2 // Created by: Roman BORISOV
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
18 #include <Adaptor3d_Curve.hxx>
19 #include <Adaptor3d_Surface.hxx>
20 #include <gp_Pnt2d.hxx>
21 #include <math_FunctionSetRoot.hxx>
22 #include <math_NewtonFunctionSetRoot.hxx>
23 #include <ProjLib_PrjFunc.hxx>
24 #include <ProjLib_PrjResolve.hxx>
25 #include <Standard_ConstructionError.hxx>
26 #include <Standard_DomainError.hxx>
27 #include <StdFail_NotDone.hxx>
29 ProjLib_PrjResolve::ProjLib_PrjResolve(const Adaptor3d_Curve& C,const Adaptor3d_Surface& S,const Standard_Integer Fix) : myFix(Fix)
31 if (myFix > 3 || myFix < 1) throw Standard_ConstructionError();
32 mySolution = gp_Pnt2d(0.,0.);
33 myCurve = (Adaptor3d_CurvePtr)&C;
34 mySurface = (Adaptor3d_SurfacePtr)&S;
37 // void ProjLib_PrjResolve::Perform(const Standard_Real t, const Standard_Real U, const Standard_Real V, const gp_Pnt2d& Tol2d, const gp_Pnt2d& Inf, const gp_Pnt2d& Sup, const Standard_Real FuncTol, const Standard_Boolean StrictInside)
38 void ProjLib_PrjResolve::Perform(const Standard_Real t, const Standard_Real U, const Standard_Real V, const gp_Pnt2d& Tol2d, const gp_Pnt2d& Inf, const gp_Pnt2d& Sup, const Standard_Real FuncTol, const Standard_Boolean )
41 myDone = Standard_False;
42 Standard_Real FixVal = 0.;
43 gp_Pnt2d ExtInf(0.,0.), ExtSup(0.,0.);
44 Standard_Real ExtU = 10*Tol2d.X(), ExtV = 10*Tol2d.Y();
45 math_Vector Tol(1, 2), Start(1, 2), BInf(1, 2), BSup(1, 2);
47 ExtInf.SetCoord(Inf.X() - ExtU, Inf.Y() - ExtV);
48 ExtSup.SetCoord(Sup.X() + ExtU, Sup.Y() + ExtV);
73 ProjLib_PrjFunc F(myCurve, FixVal, mySurface, myFix);
76 // Standard_Integer option = 1;//2;
78 // math_FunctionSetRoot S1 (F, Start,Tol, BInf, BSup);
79 // if (!S1.IsDone()) { return; }
82 math_NewtonFunctionSetRoot SR (F, Tol, 1.e-10);
83 SR.Perform(F, Start, BInf, BSup);
84 // if (!SR.IsDone()) { return; }
87 math_FunctionSetRoot S1 (F, Tol);
88 S1.Perform(F, Start, BInf, BSup);
94 mySolution.SetXY(F.Solution().XY());
96 // computation of myDone
97 myDone = Standard_True;
99 Standard_Real ExtraU , ExtraV;
100 // if(!StrictInside) {
104 if (mySolution.X() > Inf.X() - Tol2d.X() && mySolution.X() < Inf.X()) mySolution.SetX(Inf.X());
105 if (mySolution.X() > Sup.X() && mySolution.X() < Sup.X() + Tol2d.X()) mySolution.SetX(Sup.X());
106 if (mySolution.Y() > Inf.Y() - Tol2d.Y() && mySolution.Y() < Inf.Y()) mySolution.SetY(Inf.Y());
107 if (mySolution.Y() > Sup.Y() && mySolution.Y() < Sup.Y() + Tol2d.Y()) mySolution.SetY(Sup.Y());
108 if (mySolution.X() < Inf.X() - ExtraU ||
109 mySolution.X() > Sup.X() + ExtraU ||
110 mySolution.Y() < Inf.Y() - ExtraV ||
111 mySolution.Y() > Sup.Y() + ExtraV) myDone = Standard_False;
112 else if (FuncTol > 0) {
113 math_Vector X(1,2,0.), FVal(1,2,0.);
114 X(1) = mySolution.X();
115 X(2) = mySolution.Y();
120 if ((FVal(1)*FVal(1) + FVal(2)*FVal(2)) > FuncTol) myDone = Standard_False;
126 Standard_Boolean ProjLib_PrjResolve::IsDone() const
131 gp_Pnt2d ProjLib_PrjResolve::Solution() const
133 if (!IsDone()) throw StdFail_NotDone();