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91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
// Created on: 1997-10-29
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// Created by: Roman BORISOV
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// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _FEmTool_SparseMatrix_HeaderFile
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#define _FEmTool_SparseMatrix_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <MMgt_TShared.hxx>
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#include <Standard_Real.hxx>
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#include <Standard_Integer.hxx>
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#include <Standard_Boolean.hxx>
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#include <math_Vector.hxx>
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class StdFail_NotDone;
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class FEmTool_SparseMatrix;
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DEFINE_STANDARD_HANDLE(FEmTool_SparseMatrix, MMgt_TShared)
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//! Sparse Matrix definition
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class FEmTool_SparseMatrix : public MMgt_TShared
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{
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public:
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Standard_EXPORT virtual void Init (const Standard_Real Value) = 0;
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Standard_EXPORT virtual Standard_Real& ChangeValue (const Standard_Integer I, const Standard_Integer J) = 0;
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//! To make a Factorization of <me>
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Standard_EXPORT virtual Standard_Boolean Decompose() = 0;
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//! Direct Solve of AX = B
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Standard_EXPORT virtual void Solve (const math_Vector& B, math_Vector& X) const = 0;
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//! Make Preparation to iterative solve
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Standard_EXPORT virtual Standard_Boolean Prepare() = 0;
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//! Iterative solve of AX = B
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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;
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//! returns the product of a SparseMatrix by a vector.
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//! An exception is raised if the dimensions are different
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Standard_EXPORT virtual void Multiplied (const math_Vector& X, math_Vector& MX) const = 0;
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//! returns the row range of a matrix.
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Standard_EXPORT virtual Standard_Integer RowNumber() const = 0;
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//! returns the column range of the matrix.
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Standard_EXPORT virtual Standard_Integer ColNumber() const = 0;
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DEFINE_STANDARD_RTTIEXT(FEmTool_SparseMatrix,MMgt_TShared)
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protected:
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private:
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};
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#endif // _FEmTool_SparseMatrix_HeaderFile
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