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 <AppDef_MultiLine.hxx>
25 #include <Standard_Integer.hxx>
26 #include <Standard_Real.hxx>
27 #include <AppDef_ParLeastSquareOfMyGradientbisOfBSplineCompute.hxx>
28 #include <TColStd_HArray1OfInteger.hxx>
29 #include <AppParCurves_HArray1OfConstraintCouple.hxx>
30 #include <math_MultipleVarFunctionWithGradient.hxx>
31 #include <AppParCurves_Constraint.hxx>
32 class AppDef_MultiLine;
33 class AppDef_MyLineTool;
34 class AppDef_ParLeastSquareOfMyGradientbisOfBSplineCompute;
35 class AppDef_ResConstraintOfMyGradientbisOfBSplineCompute;
36 class AppParCurves_MultiCurve;
40 class AppDef_ParFunctionOfMyGradientbisOfBSplineCompute : public math_MultipleVarFunctionWithGradient
47 //! initializes the fields of the function. The approximating
48 //! curve has the desired degree Deg.
49 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);
51 //! returns the number of variables of the function. It
52 //! corresponds to the number of MultiPoints.
53 Standard_EXPORT Standard_Integer NbVariables() const;
55 //! this method computes the new approximation of the
57 //! SSP and calculates F = sum (||Pui - Bi*Pi||2) for each
58 //! point of the MultiLine.
59 Standard_EXPORT Standard_Boolean Value (const math_Vector& X, Standard_Real& F);
61 //! returns the gradient G of the sum above for the
63 Standard_EXPORT Standard_Boolean Gradient (const math_Vector& X, math_Vector& G);
65 //! returns the value F=sum(||Pui - Bi*Pi||)2.
66 //! returns the value G = grad(F) for the parameters Xi.
67 Standard_EXPORT Standard_Boolean Values (const math_Vector& X, Standard_Real& F, math_Vector& G);
69 //! returns the new parameters of the MultiLine.
70 Standard_EXPORT const math_Vector& NewParameters() const;
72 //! returns the MultiCurve approximating the set after
73 //! computing the value F or Grad(F).
74 Standard_EXPORT const AppParCurves_MultiCurve& CurveValue();
76 //! returns the distance between the MultiPoint of range
77 //! IPoint and the curve CurveIndex.
78 Standard_EXPORT Standard_Real Error (const Standard_Integer IPoint, const Standard_Integer CurveIndex) const;
80 //! returns the maximum distance between the points
81 //! and the MultiCurve.
82 Standard_EXPORT Standard_Real MaxError3d() const;
84 //! returns the maximum distance between the points
85 //! and the MultiCurve.
86 Standard_EXPORT Standard_Real MaxError2d() const;
88 Standard_EXPORT AppParCurves_Constraint FirstConstraint (const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const Standard_Integer FirstPoint) const;
90 Standard_EXPORT AppParCurves_Constraint LastConstraint (const Handle(AppParCurves_HArray1OfConstraintCouple)& TheConstraints, const Standard_Integer LastPoint) const;
98 //! this method is used each time Value or Gradient is
100 Standard_EXPORT void Perform (const math_Vector& X);
109 Standard_Boolean Done;
110 AppDef_MultiLine MyMultiLine;
111 AppParCurves_MultiCurve MyMultiCurve;
112 Standard_Integer Degre;
113 math_Vector myParameters;
115 math_Vector ValGrad_F;
122 AppDef_ParLeastSquareOfMyGradientbisOfBSplineCompute MyLeastSquare;
123 Standard_Boolean Contraintes;
124 Standard_Integer NbP;
125 Standard_Integer NbCu;
126 Standard_Integer Adeb;
127 Standard_Integer Afin;
128 Handle(TColStd_HArray1OfInteger) tabdim;
131 Standard_Integer FirstP;
132 Standard_Integer LastP;
133 Handle(AppParCurves_HArray1OfConstraintCouple) myConstraints;
144 #endif // _AppDef_ParFunctionOfMyGradientbisOfBSplineCompute_HeaderFile