1 // Created on: 1992-10-14
2 // Created by: Christophe MARION
3 // Copyright (c) 1992-1999 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 _HLRBRep_TheQuadCurvFuncOfTheQuadCurvExactInterCSurf_HeaderFile
18 #define _HLRBRep_TheQuadCurvFuncOfTheQuadCurvExactInterCSurf_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <IntSurf_Quadric.hxx>
26 #include <math_FunctionWithDerivative.hxx>
27 #include <Standard_Boolean.hxx>
28 #include <Standard_Real.hxx>
29 class IntSurf_Quadric;
31 class HLRBRep_LineTool;
35 class HLRBRep_TheQuadCurvFuncOfTheQuadCurvExactInterCSurf : public math_FunctionWithDerivative
42 //! Create the function.
43 Standard_EXPORT HLRBRep_TheQuadCurvFuncOfTheQuadCurvExactInterCSurf(const IntSurf_Quadric& Q, const gp_Lin& C);
45 //! Computes the value of the signed distance between
46 //! the implicit surface and the point at parameter
47 //! Param on the parametrised curve.
48 //! Value always returns True.
49 Standard_EXPORT Standard_Boolean Value (const Standard_Real Param, Standard_Real& F) Standard_OVERRIDE;
51 //! Computes the derivative of the previous function at
53 //! Derivative always returns True.
54 Standard_EXPORT Standard_Boolean Derivative (const Standard_Real Param, Standard_Real& D) Standard_OVERRIDE;
56 //! Computes the value and the derivative of the function.
58 Standard_EXPORT Standard_Boolean Values (const Standard_Real Param, Standard_Real& F, Standard_Real& D) Standard_OVERRIDE;
73 IntSurf_Quadric myQuadric;
85 #endif // _HLRBRep_TheQuadCurvFuncOfTheQuadCurvExactInterCSurf_HeaderFile