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1 | // Created on: 1999-12-16 |
2 | // Created by: Atelier CAS2000 |
3 | // Copyright (c) 1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
17 | // Redefinition de math_BFGS: |
18 | // ========================== |
19 | |
20 | |
21 | AppParCurves_Gradient_BFGS::AppParCurves_Gradient_BFGS(math_MultipleVarFunctionWithGradient& F, |
22 | const math_Vector& StartingPoint, |
23 | const Standard_Real Tolerance3d, |
24 | const Standard_Real Tolerance2d, |
25 | const Standard_Real Eps, |
26 | const Standard_Integer NbIterations ): |
27 | math_BFGS(F, Eps, NbIterations, Eps), |
28 | myTol3d(Tolerance3d), |
29 | myTol2d(Tolerance2d) |
30 | { |
31 | Perform(F, StartingPoint); |
32 | } |
33 | |
34 | Standard_Boolean AppParCurves_Gradient_BFGS::IsSolutionReached(math_MultipleVarFunctionWithGradient& F) const |
35 | { |
36 | AppParCurves_ParFunction *F1 = (AppParCurves_ParFunction*) &F; |
37 | Standard_Boolean Result, Result2; |
38 | |
39 | Result = (2.0 * fabs(TheMinimum - PreviousMinimum) <= |
40 | 1.e-10 * (fabs(TheMinimum) + fabs(PreviousMinimum))+1.e-12); |
41 | Standard_Real MErr3d = F1->MaxError3d(); |
42 | Standard_Real MErr2d = F1->MaxError2d(); |
43 | |
44 | Result2 = ((MErr3d <= myTol3d) && (MErr2d <= myTol2d)); |
45 | return (Result || Result2); |
46 | } |
47 | |
48 | |