include/opencascade/ProjLib_PrjResolve.hxx

0001 // Created on: 1997-11-06
0002 // Created by: Roman BORISOV
0003 // Copyright (c) 1997-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _ProjLib_PrjResolve_HeaderFile
0018 #define _ProjLib_PrjResolve_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022
0023 #include <gp_Pnt2d.hxx>
0024
0025 class Adaptor3d_Curve;
0026 class Adaptor3d_Surface;
0027
0028 class ProjLib_PrjResolve
0029 {
0030 public:
0031   DEFINE_STANDARD_ALLOC
0032
0033   Standard_EXPORT ProjLib_PrjResolve(const Adaptor3d_Curve&   C,
0034                                      const Adaptor3d_Surface& S,
0035                                      const Standard_Integer   Fix);
0036
0037   //! Calculates the ort from  C(t)  to  S  with a close point.
0038   //! The close point is defined by the parameter values U0 and V0.
0039   //! The function F(u,v)=distance(S(u,v),C(t)) has an extremum when gradient(F)=0.
0040   //! The algorithm searches a zero near the close point.
0041   Standard_EXPORT void Perform(const Standard_Real    t,
0042                                const Standard_Real    U,
0043                                const Standard_Real    V,
0044                                const gp_Pnt2d&        Tol,
0045                                const gp_Pnt2d&        Inf,
0046                                const gp_Pnt2d&        Sup,
0047                                const Standard_Real    FTol         = -1,
0048                                const Standard_Boolean StrictInside = Standard_False);
0049
0050   //! Returns True if the distance is found.
0051   Standard_EXPORT Standard_Boolean IsDone() const;
0052
0053   //! Returns the point of the extremum distance.
0054   Standard_EXPORT gp_Pnt2d Solution() const;
0055
0056 private:
0057   const Adaptor3d_Curve*   myCurve;
0058   const Adaptor3d_Surface* mySurface;
0059   Standard_Boolean         myDone;
0060   gp_Pnt2d                 mySolution;
0061   Standard_Integer         myFix;
0062 };
0063
0064 #endif // _ProjLib_PrjResolve_HeaderFile