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.
17 #ifndef _ProjLib_PrjResolve_HeaderFile
18 #define _ProjLib_PrjResolve_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <gp_Pnt2d.hxx>
26 class Adaptor3d_Curve;
27 class Adaptor3d_Surface;
30 class ProjLib_PrjResolve
37 Standard_EXPORT ProjLib_PrjResolve(const Adaptor3d_Curve& C, const Adaptor3d_Surface& S, const Standard_Integer Fix);
39 //! Calculates the ort from C(t) to S with a close point.
40 //! The close point is defined by the parameter values U0 and V0.
41 //! The function F(u,v)=distance(S(u,v),C(t)) has an extremum when gradient(F)=0.
42 //! The algorithm searches a zero near the close point.
43 Standard_EXPORT void Perform (const Standard_Real t, const Standard_Real U, const Standard_Real V, const gp_Pnt2d& Tol, const gp_Pnt2d& Inf, const gp_Pnt2d& Sup, const Standard_Real FTol = -1, const Standard_Boolean StrictInside = Standard_False);
45 //! Returns True if the distance is found.
46 Standard_EXPORT Standard_Boolean IsDone() const;
48 //! Returns the point of the extremum distance.
49 Standard_EXPORT gp_Pnt2d Solution() const;
53 const Adaptor3d_Curve* myCurve;
54 const Adaptor3d_Surface* mySurface;
55 Standard_Boolean myDone;
57 Standard_Integer myFix;
61 #endif // _ProjLib_PrjResolve_HeaderFile