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42cf5bc1 1// Created on: 1997-10-29
2// Created by: Roman BORISOV
3// Copyright (c) 1997-1999 Matra Datavision
5//
6// This file is part of Open CASCADE Technology software library.
7//
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.
13//
14// Alternatively, this file may be used under the terms of Open CASCADE
15// commercial license or contractual agreement.
16
19
20#include <Standard.hxx>
21#include <Standard_Type.hxx>
22
23#include <MMgt_TShared.hxx>
24#include <Standard_Real.hxx>
25#include <Standard_Integer.hxx>
26#include <Standard_Boolean.hxx>
27#include <math_Vector.hxx>
28class StdFail_NotDone;
29
30
31class FEmTool_SparseMatrix;
32DEFINE_STANDARD_HANDLE(FEmTool_SparseMatrix, MMgt_TShared)
33
34//! Sparse Matrix definition
35class FEmTool_SparseMatrix : public MMgt_TShared
36{
37
38public:
39
40
41 Standard_EXPORT virtual void Init (const Standard_Real Value) = 0;
42
43 Standard_EXPORT virtual Standard_Real& ChangeValue (const Standard_Integer I, const Standard_Integer J) = 0;
44
45 //! To make a Factorization of <me>
46 Standard_EXPORT virtual Standard_Boolean Decompose() = 0;
47
48 //! Direct Solve of AX = B
49 Standard_EXPORT virtual void Solve (const math_Vector& B, math_Vector& X) const = 0;
50
51 //! Make Preparation to iterative solve
52 Standard_EXPORT virtual Standard_Boolean Prepare() = 0;
53
54 //! Iterative solve of AX = B
55 Standard_EXPORT virtual void Solve (const math_Vector& B, const math_Vector& Init, math_Vector& X, math_Vector& Residual, const Standard_Real Tolerance = 1.0e-8, const Standard_Integer NbIterations = 50) const = 0;
56
57 //! returns the product of a SparseMatrix by a vector.
58 //! An exception is raised if the dimensions are different
59 Standard_EXPORT virtual void Multiplied (const math_Vector& X, math_Vector& MX) const = 0;
60
61 //! returns the row range of a matrix.
62 Standard_EXPORT virtual Standard_Integer RowNumber() const = 0;
63
64 //! returns the column range of the matrix.
65 Standard_EXPORT virtual Standard_Integer ColNumber() const = 0;
66
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92efcf78 70 DEFINE_STANDARD_RTTIEXT(FEmTool_SparseMatrix,MMgt_TShared)
42cf5bc1 71
72protected:
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76
77private:
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81
82};
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