include/opencascade/AppParCurves.hxx

0001 // Created on: 1991-04-11
0002 // Created by: Laurent PAINNOT
0003 // Copyright (c) 1991-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _AppParCurves_HeaderFile
0018 #define _AppParCurves_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <math_Vector.hxx>
0025 #include <math_IntegerVector.hxx>
0026 class math_Matrix;
0027
0028 //! Parallel Approximation in n curves.
0029 //! This package gives all the algorithms used to approximate a MultiLine
0030 //! described by the tool MLineTool.
0031 //! The result of the approximation will be a MultiCurve.
0032 class AppParCurves
0033 {
0034 public:
0035   DEFINE_STANDARD_ALLOC
0036
0037   Standard_EXPORT static void BernsteinMatrix(const int          NbPoles,
0038                                               const math_Vector& U,
0039                                               math_Matrix&       A);
0040
0041   Standard_EXPORT static void Bernstein(const int          NbPoles,
0042                                         const math_Vector& U,
0043                                         math_Matrix&       A,
0044                                         math_Matrix&       DA);
0045
0046   Standard_EXPORT static void SecondDerivativeBernstein(const double U, math_Vector& DDA);
0047
0048   Standard_EXPORT static void SplineFunction(const int           NbPoles,
0049                                              const int           Degree,
0050                                              const math_Vector&  Parameters,
0051                                              const math_Vector&  FlatKnots,
0052                                              math_Matrix&        A,
0053                                              math_Matrix&        DA,
0054                                              math_IntegerVector& Index);
0055 };
0056
0057 #endif // _AppParCurves_HeaderFile