include/opencascade/BRepPrim_Revolution.hxx

0001 // Created on: 1992-11-05
0002 // Created by: Remi LEQUETTE
0003 // Copyright (c) 1992-1999 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 _BRepPrim_Revolution_HeaderFile
0018 #define _BRepPrim_Revolution_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <BRepPrim_OneAxis.hxx>
0025 #include <Standard_Real.hxx>
0026 class Geom_Curve;
0027 class Geom2d_Curve;
0028 class gp_Ax2;
0029 class TopoDS_Face;
0030 class TopoDS_Edge;
0031 class gp_Pnt2d;
0032
0033
0034 //! Implement  the OneAxis algorithm   for a revolution
0035 //! surface.
0036 class BRepPrim_Revolution  : public BRepPrim_OneAxis
0037 {
0038 public:
0039
0040   DEFINE_STANDARD_ALLOC
0041
0042
0043   //! Create a  revolution body <M>  is the  meridian nd
0044   //! must   be in the XZ  plane   of <A>. <PM>  is  the
0045   //! meridian in the XZ plane.
0046   Standard_EXPORT BRepPrim_Revolution(const gp_Ax2& A, const Standard_Real VMin, const Standard_Real VMax, const Handle(Geom_Curve)& M, const Handle(Geom2d_Curve)& PM);
0047
0048   //! The surface normal should be directed  towards the
0049   //! outside.
0050   Standard_EXPORT virtual TopoDS_Face MakeEmptyLateralFace() const;
0051
0052   //! Returns  an  edge with  a 3D curve   made from the
0053   //! meridian  in the XZ  plane rotated by <Ang> around
0054   //! the Z-axis. Ang may be 0 or myAngle.
0055   Standard_EXPORT virtual TopoDS_Edge MakeEmptyMeridianEdge (const Standard_Real Ang) const;
0056
0057   //! Returns the meridian point at parameter <V> in the
0058   //! plane XZ.
0059   Standard_EXPORT virtual gp_Pnt2d MeridianValue (const Standard_Real V) const;
0060
0061   //! Sets the  parametric urve of  the edge <E>  in the
0062   //! face <F>   to be  the  2d  representation  of  the
0063   //! meridian.
0064   Standard_EXPORT virtual void SetMeridianPCurve (TopoDS_Edge& E, const TopoDS_Face& F) const;
0065
0066
0067
0068
0069 protected:
0070
0071
0072   //! Create a  revolution   body.  The meridian  is set
0073   //! later. Reserved for derivated classes.
0074   Standard_EXPORT BRepPrim_Revolution(const gp_Ax2& A, const Standard_Real VMin, const Standard_Real VMax);
0075
0076   Standard_EXPORT void Meridian (const Handle(Geom_Curve)& M, const Handle(Geom2d_Curve)& PM);
0077
0078
0079
0080
0081 private:
0082
0083
0084
0085   Handle(Geom_Curve) myMeridian;
0086   Handle(Geom2d_Curve) myPMeridian;
0087
0088
0089 };
0090
0091
0092
0093
0094
0095
0096
0097 #endif // _BRepPrim_Revolution_HeaderFile