text: // Created on: 1993-01-09
  // Created by: CKY / Contract Toubro-Larsen ( SIVA )
  // Copyright (c) 1993-1999 Matra Datavision
  // Copyright (c) 1999-2014 OPEN CASCADE SAS
  //
  // This file is part of Open CASCADE Technology software library.
  //
  // This library is free software; you can redistribute it and/or modify it under
  // the terms of the GNU Lesser General Public License version 2.1 as published
  // by the Free Software Foundation, with special exception defined in the file
  // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
  // distribution for complete text of the license and disclaimer of any warranty.
  //
  // Alternatively, this file may be used under the terms of Open CASCADE
  // commercial license or contractual agreement.
  
  #ifndef _IGESSolid_Shell_HeaderFile
  #define _IGESSolid_Shell_HeaderFile
  
  #include <Standard.hxx>
  #include <Standard_Type.hxx>
  
  #include <IGESSolid_HArray1OfFace.hxx>
  #include <TColStd_HArray1OfInteger.hxx>
  #include <IGESData_IGESEntity.hxx>
  #include <Standard_Boolean.hxx>
  #include <Standard_Integer.hxx>
  class IGESSolid_Face;
  
  
  class IGESSolid_Shell;
  DEFINE_STANDARD_HANDLE(IGESSolid_Shell, IGESData_IGESEntity)
  
  //! defines Shell, Type <514> Form Number <1>
  //! in package IGESSolid
  //! Shell entity is a connected entity of dimensionality 2
  //! which divides R3 into two arcwise connected open subsets,
  //! one of which is finite. Inside of the shell is defined to
  //! be the finite region.
  //! From IGES-5.3, Form can be <1> for Closed or <2> for Open
  class IGESSolid_Shell : public IGESData_IGESEntity
  {
  
  public:
  
    
    Standard_EXPORT IGESSolid_Shell();
    
    //! This method is used to set the fields of the class Shell
    //! - allFaces  : the faces comprising the shell
    //! - allOrient : the orientation flags of the shell
    //! raises exception if length of allFaces & allOrient do not match
    Standard_EXPORT void Init (const Handle(IGESSolid_HArray1OfFace)& allFaces, const Handle(TColStd_HArray1OfInteger)& allOrient);
    
    //! Tells if a Shell is Closed, i.e. if its FormNumber is 1
    //! (this is the default)
    Standard_EXPORT Standard_Boolean IsClosed() const;
    
    //! Sets or Unsets the Closed status (FormNumber = 1 else 2)
    Standard_EXPORT void SetClosed (const Standard_Boolean closed);
    
    //! returns the number of the face entities in the shell
    Standard_EXPORT Standard_Integer NbFaces() const;
    
    //! returns the Index'th face entity of the shell
    //! raises exception if Index <= 0 or Index > NbFaces()
    Standard_EXPORT Handle(IGESSolid_Face) Face (const Standard_Integer Index) const;
    
    //! returns the orientation of Index'th face w.r.t the direction of
    //! the underlying surface
    //! raises exception if Index <= 0 or Index > NbFaces()
    Standard_EXPORT Standard_Boolean Orientation (const Standard_Integer Index) const;
  
  
  
  
    DEFINE_STANDARD_RTTIEXT(IGESSolid_Shell,IGESData_IGESEntity)
  
  protected:
  
  
  
  
  private:
  
  
    Handle(IGESSolid_HArray1OfFace) theFaces;
    Handle(TColStd_HArray1OfInteger) theOrientation;
  
  
  };
  
  
  
  
  
  
  
  #endif // _IGESSolid_Shell_HeaderFile
  