include/opencascade/VrmlConverter_ShadedShape.hxx

0001 // Created on: 1997-02-21
0002 // Created by: Alexander BRIVIN
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 _VrmlConverter_ShadedShape_HeaderFile
0018 #define _VrmlConverter_ShadedShape_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Standard_OStream.hxx>
0025 #include <gp_Dir.hxx>
0026 #include <NCollection_Array1.hxx>
0027 class TopoDS_Shape;
0028 class VrmlConverter_Drawer;
0029 class TopoDS_Face;
0030 class Poly_Connect;
0031
0032 //! ShadedShape - computes the shading presentation of shapes
0033 //! by triangulation algorithms, converts this one into VRML objects
0034 //! and writes (adds) into anOStream.
0035 //! All requested properties of the representation including
0036 //! the maximal chordial deviation are specify in aDrawer.
0037 //! This kind of the presentation is converted into
0038 //! IndexedFaceSet (VRML).
0039 class VrmlConverter_ShadedShape
0040 {
0041 public:
0042   DEFINE_STANDARD_ALLOC
0043
0044   Standard_EXPORT static void Add(Standard_OStream&                        anOStream,
0045                                   const TopoDS_Shape&                      aShape,
0046                                   const occ::handle<VrmlConverter_Drawer>& aDrawer);
0047
0048   Standard_EXPORT static void ComputeNormal(const TopoDS_Face&          aFace,
0049                                             Poly_Connect&               pc,
0050                                             NCollection_Array1<gp_Dir>& Nor);
0051 };
0052
0053 #endif // _VrmlConverter_ShadedShape_HeaderFile