include/opencascade/Convert_ConeToBSplineSurface.hxx

0001 // Created on: 1991-10-10
0002 // Created by: Jean Claude VAUTHIER
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 _Convert_ConeToBSplineSurface_HeaderFile
0018 #define _Convert_ConeToBSplineSurface_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Convert_ElementarySurfaceToBSplineSurface.hxx>
0025 class gp_Cone;
0026
0027
0028
0029 //! This algorithm converts a bounded Cone into a rational
0030 //! B-spline  surface.
0031 //! The cone a Cone from package gp. Its parametrization is :
0032 //! P (U, V) =  Loc + V * Zdir +
0033 //! (R + V*Tan(Ang)) * (Cos(U)*Xdir + Sin(U)*Ydir)
0034 //! where Loc is the location point of the cone, Xdir, Ydir and Zdir
0035 //! are the normalized directions of the local cartesian coordinate
0036 //! system of the cone (Zdir is the direction of the Cone's axis) ,
0037 //! Ang is the cone semi-angle.  The U parametrization range is
0038 //! [0, 2PI].
0039 //! KeyWords :
0040 //! Convert, Cone, BSplineSurface.
0041 class Convert_ConeToBSplineSurface  : public Convert_ElementarySurfaceToBSplineSurface
0042 {
0043 public:
0044
0045   DEFINE_STANDARD_ALLOC
0046
0047
0048
0049   //! The equivalent B-spline surface as the same orientation as the
0050   //! Cone in the U and V parametric directions.
0051   //!
0052   //! Raised if U1 = U2 or U1 = U2 + 2.0 * Pi
0053   //! Raised if V1 = V2.
0054   Standard_EXPORT Convert_ConeToBSplineSurface(const gp_Cone& C, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2);
0055
0056
0057   //! The equivalent B-spline surface as the same orientation as the
0058   //! Cone in the U and V parametric directions.
0059   //!
0060   //! Raised if V1 = V2.
0061   Standard_EXPORT Convert_ConeToBSplineSurface(const gp_Cone& C, const Standard_Real V1, const Standard_Real V2);
0062
0063
0064
0065
0066 protected:
0067
0068
0069
0070
0071
0072 private:
0073
0074
0075
0076
0077
0078 };
0079
0080
0081
0082
0083
0084
0085
0086 #endif // _Convert_ConeToBSplineSurface_HeaderFile