b311480e |
1 | // Created on: 1999-12-16 |
2 | // Created by: Atelier CAS2000 |
3 | // Copyright (c) 1999-1999 Matra Datavision |
4 | // Copyright (c) 1999-2012 OPEN CASCADE SAS |
5 | // |
6 | // The content of this file is subject to the Open CASCADE Technology Public |
7 | // License Version 6.5 (the "License"). You may not use the content of this file |
8 | // except in compliance with the License. Please obtain a copy of the License |
9 | // at http://www.opencascade.org and read it completely before using this file. |
10 | // |
11 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
12 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
13 | // |
14 | // The Original Code and all software distributed under the License is |
15 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
16 | // Initial Developer hereby disclaims all such warranties, including without |
17 | // limitation, any warranties of merchantability, fitness for a particular |
18 | // purpose or non-infringement. Please see the License for the specific terms |
19 | // and conditions governing the rights and limitations under the License. |
20 | |
7fd59977 |
21 | |
22 | |
23 | |
24 | // Redefinition de math_BFGS: |
25 | // ========================== |
26 | |
27 | AppParCurves_BSpGradient_BFGS::AppParCurves_BSpGradient_BFGS(math_MultipleVarFunctionWithGradient& F, |
28 | const math_Vector& StartingPoint, |
29 | const Standard_Real Tolerance3d, |
30 | const Standard_Real Tolerance2d, |
31 | const Standard_Real Eps, |
32 | const Standard_Integer NbIterations): |
33 | math_BFGS(F, Eps, NbIterations, Eps), |
34 | myTol3d(Tolerance3d), |
35 | myTol2d(Tolerance2d) |
36 | { |
37 | |
38 | Perform(F, StartingPoint); |
39 | } |
40 | |
41 | Standard_Boolean AppParCurves_BSpGradient_BFGS::IsSolutionReached(math_MultipleVarFunctionWithGradient& F) const { |
42 | Standard_Boolean Result, Result2; |
43 | AppParCurves_BSpParFunction *F1 = (AppParCurves_BSpParFunction*) &F; |
44 | |
45 | Result = (2.0 * fabs(TheMinimum - PreviousMinimum) <= |
46 | 1.e-10 * (fabs(TheMinimum) + fabs(PreviousMinimum))+1.e-12) ; |
47 | Standard_Real MErr3d = F1->MaxError3d(); |
48 | Standard_Real MErr2d = F1->MaxError2d(); |
49 | Result2 = ((MErr3d <= myTol3d) && (MErr2d <= myTol2d)); |
50 | |
51 | return (Result || Result2); |
52 | } |
53 | |
54 | |
55 | |