include/opencascade/BlendFunc_Tensor.hxx

0001 // Created on: 1996-12-05
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 _BlendFunc_Tensor_HeaderFile
0018 #define _BlendFunc_Tensor_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <NCollection_Array1.hxx>
0025 #include <math_Vector.hxx>
0026 class math_Matrix;
0027
0028 //! used to store the "gradient of gradient"
0029 class BlendFunc_Tensor
0030 {
0031 public:
0032   DEFINE_STANDARD_ALLOC
0033
0034   Standard_EXPORT BlendFunc_Tensor(const int NbRow, const int NbCol, const int NbMat);
0035
0036   //! Initialize all the elements of a Tensor to InitialValue.
0037   Standard_EXPORT void Init(const double InitialValue);
0038
0039   //! accesses (in read or write mode) the value of index <Row>,
0040   //! <Col> and <Mat> of a Tensor.
0041   //! An exception is raised if <Row>, <Col> or <Mat> are not
0042   //! in the correct range.
0043   const double& Value(const int Row, const int Col, const int Mat) const;
0044
0045   const double& operator()(const int Row, const int Col, const int Mat) const
0046   {
0047     return Value(Row, Col, Mat);
0048   }
0049
0050   //! accesses (in read or write mode) the value of index <Row>,
0051   //! <Col> and <Mat> of a Tensor.
0052   //! An exception is raised if <Row>, <Col> or <Mat> are not
0053   //! in the correct range.
0054   double& ChangeValue(const int Row, const int Col, const int Mat);
0055
0056   double& operator()(const int Row, const int Col, const int Mat)
0057   {
0058     return ChangeValue(Row, Col, Mat);
0059   }
0060
0061   Standard_EXPORT void Multiply(const math_Vector& Right, math_Matrix& Product) const;
0062
0063 private:
0064   NCollection_Array1<double> Tab;
0065   int                        nbrow;
0066   int                        nbcol;
0067   int                        nbmat;
0068   int                        nbmtcl;
0069 };
0070
0071 #include <BlendFunc_Tensor.lxx>
0072
0073 #endif // _BlendFunc_Tensor_HeaderFile