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f79b19a17e
Extrema between curves has been made producing correct result for the cases of solution located near bounds. - Class math_GlobOptMin has been improved to use lower order methods of local optimization when high-order methods are failed. - Add support of conditional optimization (in bounds) in the classes math_BFGS and math_BracketMinimum. - Turn on conditional optimization in the case of usage of math_BFGS in the class math_GlobOptMin. - Correct mistake in distmini command, which caused incorrect reading of deflection parameter. - To avoid possible FPE signals, ensure initialization of fields in the class math/math_BracketMinimum. - In the algorithms math_BFGS, math_Powell and math_FRPR, take into account that the function math_MultipleVarFunction can return failure status (e.g. when computing D0 out of bounds). New test cases have been added. Tests cases are updated. // correct test case
66 lines
1.9 KiB
Plaintext
66 lines
1.9 KiB
Plaintext
// 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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// math_BracketMinimum.lxx
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#include <Precision.hxx>
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inline math_BracketMinimum::math_BracketMinimum(const Standard_Real A,
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const Standard_Real B)
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: Done(Standard_False),
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Ax(A), Bx(B), Cx(0.),
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FAx(0.), FBx(0.), FCx(0.),
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myLeft(-Precision::Infinite()),
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myRight(Precision::Infinite()),
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myIsLimited(Standard_False),
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myFA(Standard_False),
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myFB(Standard_False)
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{
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}
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inline Standard_Boolean math_BracketMinimum::IsDone() const { return Done; }
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inline Standard_OStream& operator<<(Standard_OStream& o,
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const math_BracketMinimum& Br)
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{
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Br.Dump(o);
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return o;
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}
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inline void math_BracketMinimum::SetLimits(const Standard_Real theLeft,
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const Standard_Real theRight)
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{
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myLeft = theLeft;
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myRight = theRight;
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myIsLimited = Standard_True;
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}
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inline void math_BracketMinimum::SetFA(const Standard_Real theValue)
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{
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FAx = theValue;
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myFA = Standard_True;
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}
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inline void math_BracketMinimum::SetFB(const Standard_Real theValue)
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{
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FBx = theValue;
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myFB = Standard_True;
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}
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inline Standard_Real math_BracketMinimum::Limited(const Standard_Real theValue) const
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{
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return theValue < myLeft ? myLeft :
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theValue > myRight ? myRight : theValue;
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}
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