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1 | // Created on: 1998-12-07 |
2 | // Created by: Igor FEOKTISTOV |
3 | // Copyright (c) 1998-1999 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 | #include <math_Matrix.hxx> |
23 | #include <math_Vector.hxx> |
24 | #include <TColStd_Array2OfReal.hxx> |
25 | #include <PLib_Base.hxx> |
26 | #include <PLib_JacobiPolynomial.hxx> |
27 | #include <PLib_HermitJacobi.hxx> |
28 | #include <FEmTool_HAssemblyTable.hxx> |
29 | |
30 | |
31 | |
32 | //======================================================================= |
33 | //function : Optimization |
34 | //purpose : (like FORTRAN subroutine MINIMI) |
35 | //======================================================================= |
36 | void AppParCurves_Variational::Optimization(Handle(AppParCurves_SmoothCriterion)& J, |
37 | FEmTool_Assembly& A, |
38 | const Standard_Boolean ToAssemble, |
39 | const Standard_Real EpsDeg, |
40 | Handle(FEmTool_Curve)& Curve, |
41 | const TColStd_Array1OfReal& Parameters) const |
42 | { |
43 | Standard_Integer MxDeg = Curve->Base()->WorkDegree(), |
44 | NbElm = Curve->NbElements(), |
45 | NbDim = Curve->Dimension(); |
46 | |
47 | Handle(FEmTool_HAssemblyTable) AssTable; |
48 | |
49 | math_Matrix H(0, MxDeg, 0, MxDeg); |
50 | math_Vector G(0, MxDeg), Sol(1, A.NbGlobVar()); |
51 | |
52 | Standard_Integer el, dim; |
53 | |
54 | A.GetAssemblyTable(AssTable); |
55 | Standard_Integer NbConstr = myNbPassPoints + myNbTangPoints + myNbCurvPoints; |
56 | |
57 | Standard_Real CBLONG = J->EstLength(); |
58 | |
59 | // Updating Assembly |
60 | if (ToAssemble) |
61 | A.NullifyMatrix(); |
62 | A.NullifyVector(); |
63 | |
64 | |
65 | for (el = 1; el <= NbElm; el++) { |
66 | if (ToAssemble) { |
67 | J->Hessian(el, 1, 1, H); |
68 | for(dim = 1; dim <= NbDim; dim++) |
69 | A.AddMatrix(el, dim, dim, H); |
70 | } |
71 | |
72 | for(dim = 1; dim <= NbDim; dim++) { |
73 | J->Gradient(el, dim, G); |
74 | A.AddVector(el, dim, G); |
75 | } |
76 | } |
77 | |
78 | |
79 | // Solution of system |
80 | if (ToAssemble) { |
81 | if(NbConstr != 0) { //Treatment of constraints |
82 | AssemblingConstraints(Curve, Parameters, CBLONG, A); |
83 | } |
84 | A.Solve(); |
85 | } |
86 | A.Solution(Sol); |
87 | |
88 | |
89 | // Updating J |
90 | J->SetCurve(Curve); |
91 | J->InputVector(Sol, AssTable); |
92 | |
93 | // Updating Curve and reduction of degree |
94 | |
95 | Standard_Integer Newdeg; |
96 | Standard_Real MaxError; |
97 | |
98 | if(NbConstr == 0) { |
99 | for(el = 1; el <= NbElm; el++) { |
100 | Curve->ReduceDegree(el, EpsDeg, Newdeg, MaxError); |
101 | } |
102 | } |
103 | else { |
104 | |
105 | TColStd_Array1OfReal& TabInt = Curve->Knots(); |
106 | Standard_Integer Icnt = 1, p0 = Parameters.Lower() - myFirstPoint, point; |
107 | for(el = 1; el <= NbElm; el++) { |
108 | while((Icnt < NbConstr) && |
109 | (Parameters(p0 + myTypConstraints->Value(2 * Icnt - 1)) <= TabInt(el))) Icnt++; |
110 | point = p0 + myTypConstraints->Value(2 * Icnt - 1); |
111 | if(Parameters(point) <= TabInt(el) || Parameters(point) >= TabInt(el + 1)) |
112 | Curve->ReduceDegree(el, EpsDeg, Newdeg, MaxError); |
113 | else |
114 | if(Curve->Degree(el) < MxDeg) Curve->SetDegree(el, MxDeg); |
115 | } |
116 | } |
117 | } |
118 | |