include/opencascade/Extrema_POnSurf.hxx

0001 // Created on: 1991-02-21
0002 // Created by: Isabelle GRIGNON
0003 // Copyright (c) 1991-1999 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 _Extrema_POnSurf_HeaderFile
0018 #define _Extrema_POnSurf_HeaderFile
0019
0020 #include <gp_Pnt.hxx>
0021 #include <Precision.hxx>
0022 #include <Standard.hxx>
0023 #include <Standard_DefineAlloc.hxx>
0024
0025 //! Definition of a point on surface.
0026 class Extrema_POnSurf
0027 {
0028 public:
0029   DEFINE_STANDARD_ALLOC
0030
0031   //! Creation of an indefinite point on surface.
0032   Extrema_POnSurf()
0033       : myU(Precision::Infinite()),
0034         myV(Precision::Infinite()),
0035         myP(gp_Pnt(Precision::Infinite(), Precision::Infinite(), Precision::Infinite()))
0036   {
0037   }
0038
0039   //! Creation of a point on surface with parameter
0040   //! values on the surface and a Pnt from gp.
0041   Extrema_POnSurf(const double theU, const double theV, const gp_Pnt& theP)
0042       : myU(theU),
0043         myV(theV),
0044         myP(theP)
0045   {
0046   }
0047
0048   //! Returns the 3d point.
0049   const gp_Pnt& Value() const { return myP; }
0050
0051   //! Sets the params of current POnSurf instance.
0052   //! (e.g. to the point to be projected).
0053   void SetParameters(const double theU, const double theV, const gp_Pnt& thePnt)
0054   {
0055     myU = theU;
0056     myV = theV;
0057     myP = thePnt;
0058   }
0059
0060   //! Returns the parameter values on the surface.
0061   void Parameter(double& theU, double& theV) const
0062   {
0063     theU = myU;
0064     theV = myV;
0065   }
0066
0067 private:
0068   double myU;
0069   double myV;
0070   gp_Pnt myP;
0071 };
0072
0073 #endif // _Extrema_POnSurf_HeaderFile