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72 lines
2.2 KiB
C++
Executable File
72 lines
2.2 KiB
C++
Executable File
// Copyright (c) 1997-1999 Matra Datavision
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// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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//#ifndef DEB
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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.ixx>
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#include <math_Recipes.hxx>
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#include <StdFail_NotDone.hxx>
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#include <Standard_DimensionError.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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