// Created on: 1995-09-19
// Created by: Laurent PAINNOT
// Copyright (c) 1995-1999 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 _StdPrs_HLRPolyShape_HeaderFile
#define _StdPrs_HLRPolyShape_HeaderFile

#include <StdPrs_HLRShapeI.hxx>

//! Instantiates Prs3d_PolyHLRShape to define a display of a shape where hidden
//! and visible lines are identified with respect to a given projection.
//! StdPrs_HLRPolyShape works with a polyhedral simplification of the shape whereas
//! StdPrs_HLRShape takes the shape itself into account.
//! When you use StdPrs_HLRShape, you obtain an exact result, whereas, when you use StdPrs_HLRPolyShape,
//! you reduce computation time but obtain polygonal segments.
//! The polygonal algorithm is used.
class StdPrs_HLRPolyShape : public StdPrs_HLRShapeI
{
  DEFINE_STANDARD_RTTIEXT(StdPrs_HLRPolyShape, StdPrs_HLRShapeI)
public:
  
  //! Compute presentation for specified shape.
  Standard_EXPORT virtual void ComputeHLR (const Handle(Prs3d_Presentation)& thePrs,
                                           const TopoDS_Shape& theShape,
                                           const Handle(Prs3d_Drawer)& theDrawer,
                                           const Handle(Graphic3d_Camera)& theProjector) const Standard_OVERRIDE;

};

#endif // _StdPrs_HLRPolyShape_HeaderFile
