include/opencascade/GeomLib_MakeCurvefromApprox.hxx

0001 // Created on: 1995-06-13
0002 // Created by: Bruno DUMORTIER
0003 // Copyright (c) 1995-1999 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 _GeomLib_MakeCurvefromApprox_HeaderFile
0018 #define _GeomLib_MakeCurvefromApprox_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <AdvApprox_ApproxAFunction.hxx>
0025 #include <Standard_Integer.hxx>
0026 class Geom2d_BSplineCurve;
0027 class Geom_BSplineCurve;
0028
0029
0030 //! this class is used to  construct the BSpline curve
0031 //! from an Approximation ( ApproxAFunction from AdvApprox).
0032 class GeomLib_MakeCurvefromApprox
0033 {
0034 public:
0035
0036   DEFINE_STANDARD_ALLOC
0037
0038
0039   Standard_EXPORT GeomLib_MakeCurvefromApprox(const AdvApprox_ApproxAFunction& Approx);
0040
0041     Standard_Boolean IsDone() const;
0042
0043   //! returns the number of 1D spaces of the Approx
0044   Standard_EXPORT Standard_Integer Nb1DSpaces() const;
0045
0046   //! returns the number of 3D spaces of the Approx
0047   Standard_EXPORT Standard_Integer Nb2DSpaces() const;
0048
0049   //! returns the number of 3D spaces of the Approx
0050   Standard_EXPORT Standard_Integer Nb3DSpaces() const;
0051
0052   //! returns a polynomial curve whose poles correspond to
0053   //! the Index2d 2D space
0054   //! if Index2d not in the Range [1,Nb2dSpaces]
0055   //! if the Approx is not Done
0056   Standard_EXPORT Handle(Geom2d_BSplineCurve) Curve2d (const Standard_Integer Index2d) const;
0057
0058   //! returns a 2D curve building it from the 1D curve
0059   //! in x at Index1d and y at Index2d amongst the
0060   //! 1D curves
0061   //! if Index1d not in the Range [1,Nb1dSpaces]
0062   //! if Index2d not in the Range [1,Nb1dSpaces]
0063   //! if the Approx is not Done
0064   Standard_EXPORT Handle(Geom2d_BSplineCurve) Curve2dFromTwo1d (const Standard_Integer Index1d, const Standard_Integer Index2d) const;
0065
0066   //! returns a rational curve whose poles correspond to
0067   //! the index2d of the 2D space and whose weights correspond
0068   //! to one dimensional space of index 1d
0069   //! if Index1d not in the Range [1,Nb1dSpaces]
0070   //! if Index2d not in the Range [1,Nb2dSpaces]
0071   //! if the Approx is not Done
0072   Standard_EXPORT Handle(Geom2d_BSplineCurve) Curve2d (const Standard_Integer Index1d, const Standard_Integer Index2d) const;
0073
0074   //! returns a polynomial curve whose poles correspond to
0075   //! the Index3D 3D space
0076   //! if Index3D not in the Range [1,Nb3dSpaces]
0077   //! if the Approx is not Done
0078   Standard_EXPORT Handle(Geom_BSplineCurve) Curve (const Standard_Integer Index3d) const;
0079
0080   //! returns a rational curve whose poles correspond to
0081   //! the index3D of the 3D space and whose weights correspond
0082   //! to the index1d 1D space.
0083   //! if Index1D not in the Range [1,Nb1dSpaces]
0084   //! if Index3D not in the Range [1,Nb3dSpaces]
0085   //! if the Approx is not Done
0086   Standard_EXPORT Handle(Geom_BSplineCurve) Curve (const Standard_Integer Index1D, const Standard_Integer Index3D) const;
0087
0088
0089
0090
0091 protected:
0092
0093
0094
0095
0096
0097 private:
0098
0099
0100
0101   AdvApprox_ApproxAFunction myApprox;
0102
0103
0104 };
0105
0106
0107 #include <GeomLib_MakeCurvefromApprox.lxx>
0108
0109
0110
0111
0112
0113 #endif // _GeomLib_MakeCurvefromApprox_HeaderFile