1 // Created on: 1997-02-12
2 // Created by: Alexander BRIVIN
3 // Copyright (c) 1997-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Vrml_Switch_HeaderFile
18 #define _Vrml_Switch_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Standard_OStream.hxx>
27 //! defines a Switch node of VRML specifying group properties.
28 //! This group node traverses one, none, or all of its children.
29 //! One can use this node to switch on and off the effects of some
30 //! properties or to switch between different properties.
31 //! The whichChild field specifies the index of the child to traverse,
32 //! where the first child has index 0.
33 //! A value of -1 (the default) means do not traverse any children.
34 //! A value of -3 traverses all children, making the switch behave exactly
35 //! like a regular Group.
43 Standard_EXPORT Vrml_Switch(const Standard_Integer aWhichChild = -1);
45 Standard_EXPORT void SetWhichChild (const Standard_Integer aWhichChild);
47 Standard_EXPORT Standard_Integer WhichChild() const;
49 Standard_EXPORT Standard_OStream& Print (Standard_OStream& anOStream) const;
64 Standard_Integer myWhichChild;
75 #endif // _Vrml_Switch_HeaderFile