include/opencascade/Geom_SweptSurface.hxx

0001 // Created on: 1993-03-10
0002 // Created by: JCV
0003 // Copyright (c) 1993-1999 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 _Geom_SweptSurface_HeaderFile
0018 #define _Geom_SweptSurface_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_Type.hxx>
0022
0023 #include <gp_Dir.hxx>
0024 #include <GeomAbs_Shape.hxx>
0025 #include <Geom_Surface.hxx>
0026 class Geom_Curve;
0027
0028 //! Describes the common behavior for surfaces
0029 //! constructed by sweeping a curve with another curve.
0030 //! The Geom package provides two concrete derived
0031 //! surfaces: surface of revolution (a revolved surface),
0032 //! and surface of linear extrusion (an extruded surface).
0033 class Geom_SweptSurface : public Geom_Surface
0034 {
0035
0036 public:
0037   //! returns the continuity of the surface :
0038   //! C0 : only geometric continuity,
0039   //! C1 : continuity of the first derivative all along the surface,
0040   //! C2 : continuity of the second derivative all along the surface,
0041   //! C3 : continuity of the third derivative all along the surface,
0042   //! G1 : tangency continuity all along the surface,
0043   //! G2 : curvature continuity all along the surface,
0044   //! CN : the order of continuity is infinite.
0045   Standard_EXPORT GeomAbs_Shape Continuity() const override;
0046
0047   //! Returns the reference direction of the swept surface.
0048   //! For a surface of revolution it is the direction of the
0049   //! revolution axis, for a surface of linear extrusion it is
0050   //! the direction of extrusion.
0051   Standard_EXPORT const gp_Dir& Direction() const;
0052
0053   //! Returns the referenced curve of the surface.
0054   //! For a surface of revolution it is the revolution curve,
0055   //! for a surface of linear extrusion it is the extruded curve.
0056   Standard_EXPORT occ::handle<Geom_Curve> BasisCurve() const;
0057
0058   //! Dumps the content of me into the stream
0059   Standard_EXPORT void DumpJson(Standard_OStream& theOStream, int theDepth = -1) const override;
0060
0061   DEFINE_STANDARD_RTTIEXT(Geom_SweptSurface, Geom_Surface)
0062
0063 protected:
0064   occ::handle<Geom_Curve> basisCurve;
0065   gp_Dir                  direction;
0066   GeomAbs_Shape           smooth;
0067 };
0068
0069 #endif // _Geom_SweptSurface_HeaderFile