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1 | // Created on: 1995-01-27 |
2 | // Created by: Jacques GOUSSARD |
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 _GeomInt_ResConstraintOfMyGradientOfTheComputeLineBezierOfWLApprox_HeaderFile |
18 | #define _GeomInt_ResConstraintOfMyGradientOfTheComputeLineBezierOfWLApprox_HeaderFile |
19 | |
20 | #include <Standard.hxx> |
21 | #include <Standard_DefineAlloc.hxx> |
22 | #include <Standard_Handle.hxx> |
23 | |
24 | #include <Standard_Boolean.hxx> |
25 | #include <Standard_Real.hxx> |
26 | #include <math_Matrix.hxx> |
27 | #include <math_Vector.hxx> |
28 | #include <Standard_Integer.hxx> |
29 | #include <TColStd_Array1OfInteger.hxx> |
30 | #include <AppParCurves_HArray1OfConstraintCouple.hxx> |
31 | class Standard_OutOfRange; |
32 | class GeomInt_TheMultiLineOfWLApprox; |
33 | class GeomInt_TheMultiLineToolOfWLApprox; |
34 | class AppParCurves_MultiCurve; |
35 | class math_Matrix; |
36 | |
37 | |
38 | |
39 | class GeomInt_ResConstraintOfMyGradientOfTheComputeLineBezierOfWLApprox |
40 | { |
41 | public: |
42 | |
43 | DEFINE_STANDARD_ALLOC |
44 | |
45 | |
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46 | //! Given a MultiLine SSP with constraints points, this |
47 | //! algorithm finds the best curve solution to approximate it. |
48 | //! The poles from SCurv issued for example from the least |
49 | //! squares are used as a guess solution for the uzawa |
50 | //! algorithm. The tolerance used in the Uzawa algorithms |
51 | //! is Tolerance. |
52 | //! A is the Bernstein matrix associated to the MultiLine |
53 | //! and DA is the derivative bernstein matrix.(They can come |
54 | //! from an approximation with ParLeastSquare.) |
55 | //! The MultiCurve is modified. New MultiPoles are given. |
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56 | Standard_EXPORT GeomInt_ResConstraintOfMyGradientOfTheComputeLineBezierOfWLApprox(const GeomInt_TheMultiLineOfWLApprox& SSP, AppParCurves_MultiCurve& SCurv, const Standard_Integer FirstPoint, const Standard_Integer LastPoint, const Handle(AppParCurves_HArray1OfConstraintCouple)& Constraints, const math_Matrix& Bern, const math_Matrix& DerivativeBern, const Standard_Real Tolerance = 1.0e-10); |
57 | |
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58 | //! returns True if all has been correctly done. |
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59 | Standard_EXPORT Standard_Boolean IsDone() const; |
60 | |
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61 | //! returns the maximum difference value between the curve |
62 | //! and the given points. |
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63 | Standard_EXPORT Standard_Real Error() const; |
64 | |
65 | Standard_EXPORT const math_Matrix& ConstraintMatrix() const; |
66 | |
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67 | //! returns the duale variables of the system. |
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68 | Standard_EXPORT const math_Vector& Duale() const; |
69 | |
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70 | //! Returns the derivative of the constraint matrix. |
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71 | Standard_EXPORT const math_Matrix& ConstraintDerivative (const GeomInt_TheMultiLineOfWLApprox& SSP, const math_Vector& Parameters, const Standard_Integer Deg, const math_Matrix& DA); |
72 | |
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73 | //! returns the Inverse of Cont*Transposed(Cont), where |
74 | //! Cont is the constraint matrix for the algorithm. |
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75 | Standard_EXPORT const math_Matrix& InverseMatrix() const; |
76 | |
77 | |
78 | |
79 | |
80 | protected: |
81 | |
82 | |
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83 | //! is used internally to create the fields. |
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84 | Standard_EXPORT Standard_Integer NbConstraints (const GeomInt_TheMultiLineOfWLApprox& SSP, const Standard_Integer FirstPoint, const Standard_Integer LastPoint, const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints) const; |
85 | |
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86 | //! is internally used for the fields creation. |
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87 | Standard_EXPORT Standard_Integer NbColumns (const GeomInt_TheMultiLineOfWLApprox& SSP, const Standard_Integer Deg) const; |
88 | |
89 | |
90 | |
91 | |
92 | private: |
93 | |
94 | |
95 | |
96 | Standard_Boolean Done; |
97 | Standard_Real Err; |
98 | math_Matrix Cont; |
99 | math_Matrix DeCont; |
100 | math_Vector Secont; |
101 | math_Matrix CTCinv; |
102 | math_Vector Vardua; |
103 | Standard_Integer IncPass; |
104 | Standard_Integer IncTan; |
105 | Standard_Integer IncCurv; |
106 | TColStd_Array1OfInteger IPas; |
107 | TColStd_Array1OfInteger ITan; |
108 | TColStd_Array1OfInteger ICurv; |
109 | |
110 | |
111 | }; |
112 | |
113 | |
114 | |
115 | |
116 | |
117 | |
118 | |
119 | #endif // _GeomInt_ResConstraintOfMyGradientOfTheComputeLineBezierOfWLApprox_HeaderFile |