1 // Created on: 1991-12-02
2 // Created by: Laurent PAINNOT
3 // Copyright (c) 1991-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _AppDef_ParFunctionOfMyGradientbisOfBSplineCompute_HeaderFile
18 #define _AppDef_ParFunctionOfMyGradientbisOfBSplineCompute_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_Boolean.hxx>
25 #include <AppDef_MultiLine.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 <AppDef_ParLeastSquareOfMyGradientbisOfBSplineCompute.hxx>
32 #include <TColStd_HArray1OfInteger.hxx>
33 #include <AppParCurves_HArray1OfConstraintCouple.hxx>
34 #include <math_MultipleVarFunctionWithGradient.hxx>
35 #include <AppParCurves_Constraint.hxx>
36 class AppDef_MultiLine;
37 class AppDef_MyLineTool;
38 class AppDef_ParLeastSquareOfMyGradientbisOfBSplineCompute;
39 class AppDef_ResConstraintOfMyGradientbisOfBSplineCompute;
40 class AppParCurves_MultiCurve;
44 class AppDef_ParFunctionOfMyGradientbisOfBSplineCompute : public math_MultipleVarFunctionWithGradient
51 //! initializes the fields of the function. The approximating
52 //! curve has the desired degree Deg.
53 Standard_EXPORT AppDef_ParFunctionOfMyGradientbisOfBSplineCompute(const AppDef_MultiLine& SSP, const Standard_Integer FirstPoint, const Standard_Integer LastPoint, const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const math_Vector& Parameters, const Standard_Integer Deg);
55 //! returns the number of variables of the function. It
56 //! corresponds to the number of MultiPoints.
57 Standard_EXPORT Standard_Integer NbVariables() const;
59 //! this method computes the new approximation of the
61 //! SSP and calculates F = sum (||Pui - Bi*Pi||2) for each
62 //! point of the MultiLine.
63 Standard_EXPORT Standard_Boolean Value (const math_Vector& X, Standard_Real& F);
65 //! returns the gradient G of the sum above for the
67 Standard_EXPORT Standard_Boolean Gradient (const math_Vector& X, math_Vector& G);
69 //! returns the value F=sum(||Pui - Bi*Pi||)2.
70 //! returns the value G = grad(F) for the parameters Xi.
71 Standard_EXPORT Standard_Boolean Values (const math_Vector& X, Standard_Real& F, math_Vector& G);
73 //! returns the new parameters of the MultiLine.
74 Standard_EXPORT const math_Vector& NewParameters() const;
76 //! returns the MultiCurve approximating the set after
77 //! computing the value F or Grad(F).
78 Standard_EXPORT const AppParCurves_MultiCurve& CurveValue();
80 //! returns the distance between the MultiPoint of range
81 //! IPoint and the curve CurveIndex.
82 Standard_EXPORT Standard_Real Error (const Standard_Integer IPoint, const Standard_Integer CurveIndex) const;
84 //! returns the maximum distance between the points
85 //! and the MultiCurve.
86 Standard_EXPORT Standard_Real MaxError3d() const;
88 //! returns the maximum distance between the points
89 //! and the MultiCurve.
90 Standard_EXPORT Standard_Real MaxError2d() const;
92 Standard_EXPORT AppParCurves_Constraint FirstConstraint (const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const Standard_Integer FirstPoint) const;
94 Standard_EXPORT AppParCurves_Constraint LastConstraint (const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const Standard_Integer LastPoint) const;
102 //! this method is used each time Value or Gradient is
104 Standard_EXPORT void Perform (const math_Vector& X);
113 Standard_Boolean Done;
114 AppDef_MultiLine MyMultiLine;
115 AppParCurves_MultiCurve MyMultiCurve;
116 Standard_Integer Degre;
117 math_Vector myParameters;
119 math_Vector ValGrad_F;
126 AppDef_ParLeastSquareOfMyGradientbisOfBSplineCompute 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;
135 Standard_Integer FirstP;
136 Standard_Integer LastP;
137 Handle(AppParCurves_HArray1OfConstraintCouple) myConstraints;
148 #endif // _AppDef_ParFunctionOfMyGradientbisOfBSplineCompute_HeaderFile