include/opencascade/math_GaussSetIntegration.hxx

0001 // Created on: 1996-01-22
0002 // Created by: Philippe MANGIN
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 _math_GaussSetIntegration_HeaderFile
0018 #define _math_GaussSetIntegration_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022
0023 #include <math_Vector.hxx>
0024 #include <math_IntegerVector.hxx>
0025 #include <Standard_OStream.hxx>
0026 class math_FunctionSet;
0027
0028 //! -- This class implements the integration of a set of N
0029 //! functions of M  variables variables between the
0030 //! parameter bounds Lower[a..b] and Upper[a..b].
0031 //! Warning: - The case M>1 is not implemented.
0032 class math_GaussSetIntegration
0033 {
0034 public:
0035   DEFINE_STANDARD_ALLOC
0036
0037   //! The Gauss-Legendre integration with Order = points of
0038   //! integration for each unknown, is done on the function F
0039   //! between the bounds Lower and Upper.
0040   Standard_EXPORT math_GaussSetIntegration(math_FunctionSet&         F,
0041                                            const math_Vector&        Lower,
0042                                            const math_Vector&        Upper,
0043                                            const math_IntegerVector& Order);
0044
0045   //! returns True if all has been correctly done.
0046   Standard_Boolean IsDone() const;
0047
0048   //! returns the value of the integral.
0049   const math_Vector& Value() const;
0050
0051   //! Prints information on the current state of the object.
0052   Standard_EXPORT void Dump(Standard_OStream& o) const;
0053
0054 protected:
0055 private:
0056   math_Vector      Val;
0057   Standard_Boolean Done;
0058 };
0059
0060 #include <math_GaussSetIntegration.lxx>
0061
0062 #endif // _math_GaussSetIntegration_HeaderFile