include/opencascade/Geom2dConvert_CompCurveToBSplineCurve.hxx

0001 // Created on: 1997-04-29
0002 // Created by: Stagiaire Francois DUMONT
0003 // Copyright (c) 1997-1999 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 _Geom2dConvert_CompCurveToBSplineCurve_HeaderFile
0018 #define _Geom2dConvert_CompCurveToBSplineCurve_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Convert_ParameterisationType.hxx>
0025 class Geom2d_BSplineCurve;
0026 class Geom2d_BoundedCurve;
0027
0028
0029 //! This algorithm converts and concat several curve in an BSplineCurve
0030 class Geom2dConvert_CompCurveToBSplineCurve
0031 {
0032 public:
0033
0034   DEFINE_STANDARD_ALLOC
0035
0036
0037   //! Initialize the algorithme
0038   //! - Parameterisation is used to convert
0039   Standard_EXPORT Geom2dConvert_CompCurveToBSplineCurve(const Convert_ParameterisationType Parameterisation = Convert_TgtThetaOver2);
0040
0041   //! Initialize the algorithme with one curve
0042   //! - Parameterisation is used to convert
0043   Standard_EXPORT Geom2dConvert_CompCurveToBSplineCurve(const Handle(Geom2d_BoundedCurve)& BasisCurve, const Convert_ParameterisationType Parameterisation = Convert_TgtThetaOver2);
0044
0045   //! Append a curve in the BSpline
0046   //! Return False if the curve is not G0 with the BSplineCurve.
0047   //! Tolerance is used to check continuity and decrease
0048   //! Multiplicty at the common Knot
0049   //! After is useful if BasisCurve is a closed curve .
0050   Standard_EXPORT Standard_Boolean Add (const Handle(Geom2d_BoundedCurve)& NewCurve, const Standard_Real Tolerance, const Standard_Boolean After = Standard_False);
0051
0052   Standard_EXPORT Handle(Geom2d_BSplineCurve) BSplineCurve() const;
0053
0054   //! Clear result curve
0055   Standard_EXPORT void Clear();
0056
0057
0058
0059
0060 protected:
0061
0062
0063
0064
0065
0066 private:
0067
0068
0069   //! Concat two BSplineCurves.
0070   Standard_EXPORT void Add (Handle(Geom2d_BSplineCurve)& FirstCurve, Handle(Geom2d_BSplineCurve)& SecondCurve, const Standard_Boolean After);
0071
0072
0073   Handle(Geom2d_BSplineCurve) myCurve;
0074   Standard_Real myTol;
0075   Convert_ParameterisationType myType;
0076
0077
0078 };
0079
0080
0081
0082
0083
0084
0085
0086 #endif // _Geom2dConvert_CompCurveToBSplineCurve_HeaderFile