include/opencascade/Law_Constant.hxx

0001 // Created on: 1996-03-29
0002 // Created by: Laurent BOURESCHE
0003 // Copyright (c) 1996-1999 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 _Law_Constant_HeaderFile
0018 #define _Law_Constant_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <Standard_Real.hxx>
0024 #include <Law_Function.hxx>
0025 #include <GeomAbs_Shape.hxx>
0026 #include <Standard_Integer.hxx>
0027 #include <TColStd_Array1OfReal.hxx>
0028
0029
0030 class Law_Constant;
0031 DEFINE_STANDARD_HANDLE(Law_Constant, Law_Function)
0032
0033 //! Loi constante
0034 class Law_Constant : public Law_Function
0035 {
0036
0037 public:
0038
0039
0040   Standard_EXPORT Law_Constant();
0041
0042   //! Set the radius and the range of the constant Law.
0043   Standard_EXPORT void Set (const Standard_Real Radius, const Standard_Real PFirst, const Standard_Real PLast);
0044
0045   //! Returns GeomAbs_CN
0046   Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
0047
0048   //! Returns  1
0049   Standard_EXPORT Standard_Integer NbIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
0050
0051   Standard_EXPORT void Intervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
0052
0053   //! Returns the value at parameter X.
0054   Standard_EXPORT Standard_Real Value (const Standard_Real X) Standard_OVERRIDE;
0055
0056   //! Returns the value and the first derivative at parameter X.
0057   Standard_EXPORT void D1 (const Standard_Real X, Standard_Real& F, Standard_Real& D) Standard_OVERRIDE;
0058
0059   //! Returns the value, first and second derivatives
0060   //! at parameter X.
0061   Standard_EXPORT void D2 (const Standard_Real X, Standard_Real& F, Standard_Real& D, Standard_Real& D2) Standard_OVERRIDE;
0062
0063   Standard_EXPORT Handle(Law_Function) Trim (const Standard_Real PFirst, const Standard_Real PLast, const Standard_Real Tol) const Standard_OVERRIDE;
0064
0065   //! Returns the parametric bounds of the function.
0066   Standard_EXPORT void Bounds (Standard_Real& PFirst, Standard_Real& PLast) Standard_OVERRIDE;
0067
0068
0069
0070
0071   DEFINE_STANDARD_RTTIEXT(Law_Constant,Law_Function)
0072
0073 protected:
0074
0075
0076
0077
0078 private:
0079
0080
0081   Standard_Real radius;
0082   Standard_Real first;
0083   Standard_Real last;
0084
0085
0086 };
0087
0088
0089
0090
0091
0092
0093
0094 #endif // _Law_Constant_HeaderFile