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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
// 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 OCCT_DEBUG
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#define No_Standard_RangeError
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#define No_Standard_OutOfRange
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#define No_Standard_DimensionError
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//#endif
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#include <math_GaussLeastSquare.hxx>
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#include <math_Matrix.hxx>
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#include <math_Recipes.hxx>
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#include <Standard_DimensionError.hxx>
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#include <StdFail_NotDone.hxx>
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math_GaussLeastSquare::math_GaussLeastSquare (const math_Matrix& A,
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const Standard_Real MinPivot) :
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LU(1, A.ColNumber(),
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1, A.ColNumber()),
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A2(1, A.ColNumber(),
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1, A.RowNumber()),
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Index(1, A.ColNumber()) {
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A2 = A.Transposed();
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LU.Multiply(A2, A);
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Standard_Integer Error = LU_Decompose(LU, Index, D, MinPivot);
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Done = (!Error) ? Standard_True : Standard_False;
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}
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void math_GaussLeastSquare::Solve(const math_Vector& B, math_Vector& X) const{
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StdFail_NotDone_Raise_if(!Done, " ");
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Standard_DimensionError_Raise_if((B.Length() != A2.ColNumber()) ||
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(X.Length() != A2.RowNumber()), " ");
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X.Multiply(A2, B);
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LU_Solve(LU, Index, X);
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return;
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}
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void math_GaussLeastSquare::Dump(Standard_OStream& o) const {
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o <<"math_GaussLeastSquare ";
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if (Done) {
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o << " Status = Done \n";
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}
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else {
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o << "Status = not Done \n";
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}
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}
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