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1 | // Created on: 1995-06-06 |
2 | // Created by: Jean Yves LEBEY |
3 | // Copyright (c) 1995-1999 Matra Datavision |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
5 | // |
6 | // This file is part of Open CASCADE Technology software library. |
7 | // |
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 |
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. |
13 | // |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
16 | |
17 | #ifndef _BRepApprox_ParFunctionOfMyGradientbisOfTheComputeLineOfApprox_HeaderFile |
18 | #define _BRepApprox_ParFunctionOfMyGradientbisOfTheComputeLineOfApprox_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Standard_Boolean.hxx> |
25 | #include <BRepApprox_TheMultiLineOfApprox.hxx> |
26 | #include <AppParCurves_MultiCurve.hxx> |
27 | #include <Standard_Integer.hxx> |
28 | #include <math_Vector.hxx> |
29 | #include <Standard_Real.hxx> |
30 | #include <math_Matrix.hxx> |
31 | #include <BRepApprox_ParLeastSquareOfMyGradientbisOfTheComputeLineOfApprox.hxx> |
32 | #include <TColStd_HArray1OfInteger.hxx> |
33 | #include <AppParCurves_HArray1OfConstraintCouple.hxx> |
34 | #include <math_MultipleVarFunctionWithGradient.hxx> |
35 | #include <AppParCurves_Constraint.hxx> |
36 | class BRepApprox_TheMultiLineOfApprox; |
37 | class BRepApprox_TheMultiLineToolOfApprox; |
38 | class BRepApprox_ParLeastSquareOfMyGradientbisOfTheComputeLineOfApprox; |
39 | class BRepApprox_ResConstraintOfMyGradientbisOfTheComputeLineOfApprox; |
40 | class AppParCurves_MultiCurve; |
41 | |
42 | |
43 | |
44 | class BRepApprox_ParFunctionOfMyGradientbisOfTheComputeLineOfApprox : public math_MultipleVarFunctionWithGradient |
45 | { |
46 | public: |
47 | |
48 | DEFINE_STANDARD_ALLOC |
49 | |
50 | |
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51 | //! initializes the fields of the function. The approximating |
52 | //! curve has the desired degree Deg. |
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53 | Standard_EXPORT BRepApprox_ParFunctionOfMyGradientbisOfTheComputeLineOfApprox(const BRepApprox_TheMultiLineOfApprox& SSP, const Standard_Integer FirstPoint, const Standard_Integer LastPoint, const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const math_Vector& Parameters, const Standard_Integer Deg); |
54 | |
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55 | //! returns the number of variables of the function. It |
56 | //! corresponds to the number of MultiPoints. |
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57 | Standard_EXPORT Standard_Integer NbVariables() const; |
58 | |
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59 | //! this method computes the new approximation of the |
60 | //! MultiLine |
61 | //! SSP and calculates F = sum (||Pui - Bi*Pi||2) for each |
62 | //! point of the MultiLine. |
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63 | Standard_EXPORT Standard_Boolean Value (const math_Vector& X, Standard_Real& F); |
64 | |
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65 | //! returns the gradient G of the sum above for the |
66 | //! parameters Xi. |
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67 | Standard_EXPORT Standard_Boolean Gradient (const math_Vector& X, math_Vector& G); |
68 | |
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69 | //! returns the value F=sum(||Pui - Bi*Pi||)2. |
70 | //! returns the value G = grad(F) for the parameters Xi. |
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71 | Standard_EXPORT Standard_Boolean Values (const math_Vector& X, Standard_Real& F, math_Vector& G); |
72 | |
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73 | //! returns the new parameters of the MultiLine. |
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74 | Standard_EXPORT const math_Vector& NewParameters() const; |
75 | |
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76 | //! returns the MultiCurve approximating the set after |
77 | //! computing the value F or Grad(F). |
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78 | Standard_EXPORT const AppParCurves_MultiCurve& CurveValue(); |
79 | |
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80 | //! returns the distance between the MultiPoint of range |
81 | //! IPoint and the curve CurveIndex. |
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82 | Standard_EXPORT Standard_Real Error (const Standard_Integer IPoint, const Standard_Integer CurveIndex) const; |
83 | |
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84 | //! returns the maximum distance between the points |
85 | //! and the MultiCurve. |
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86 | Standard_EXPORT Standard_Real MaxError3d() const; |
87 | |
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88 | //! returns the maximum distance between the points |
89 | //! and the MultiCurve. |
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90 | Standard_EXPORT Standard_Real MaxError2d() const; |
91 | |
92 | Standard_EXPORT AppParCurves_Constraint FirstConstraint (const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const Standard_Integer FirstPoint) const; |
93 | |
94 | Standard_EXPORT AppParCurves_Constraint LastConstraint (const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const Standard_Integer LastPoint) const; |
95 | |
96 | |
97 | |
98 | |
99 | protected: |
100 | |
101 | |
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102 | //! this method is used each time Value or Gradient is |
103 | //! needed. |
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104 | Standard_EXPORT void Perform (const math_Vector& X); |
105 | |
106 | |
107 | |
108 | |
109 | private: |
110 | |
111 | |
112 | |
113 | Standard_Boolean Done; |
114 | BRepApprox_TheMultiLineOfApprox MyMultiLine; |
115 | AppParCurves_MultiCurve MyMultiCurve; |
116 | Standard_Integer Degre; |
117 | math_Vector myParameters; |
118 | Standard_Real FVal; |
119 | math_Vector ValGrad_F; |
120 | math_Matrix MyF; |
121 | math_Matrix PTLX; |
122 | math_Matrix PTLY; |
123 | math_Matrix PTLZ; |
124 | math_Matrix A; |
125 | math_Matrix DA; |
126 | BRepApprox_ParLeastSquareOfMyGradientbisOfTheComputeLineOfApprox MyLeastSquare; |
127 | Standard_Boolean Contraintes; |
128 | Standard_Integer NbP; |
129 | Standard_Integer NbCu; |
130 | Standard_Integer Adeb; |
131 | Standard_Integer Afin; |
132 | Handle(TColStd_HArray1OfInteger) tabdim; |
133 | Standard_Real ERR3d; |
134 | Standard_Real ERR2d; |
135 | Standard_Integer FirstP; |
136 | Standard_Integer LastP; |
137 | Handle(AppParCurves_HArray1OfConstraintCouple) myConstraints; |
138 | |
139 | |
140 | }; |
141 | |
142 | |
143 | |
144 | |
145 | |
146 | |
147 | |
148 | #endif // _BRepApprox_ParFunctionOfMyGradientbisOfTheComputeLineOfApprox_HeaderFile |