niftkVTKBackfaceCullingFilter.h

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/*=============================================================================

  NifTK: A software platform for medical image computing.

  Copyright (c) University College London (UCL). All rights reserved.

  This software is distributed WITHOUT ANY WARRANTY; without even
  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  PURPOSE.

  See LICENSE.txt in the top level directory for details.

=============================================================================*/

#ifndef niftkVTKBackfaceCullingFilter_h
#define niftkVTKBackfaceCullingFilter_h

#include <niftkVTKWin32ExportHeader.h>
#include <vtkPolyDataAlgorithm.h>
#include <vtkSmartPointer.h>
#include <vtkSetGet.h>
#include <vtkMatrix4x4.h>


namespace niftk
{


class NIFTKVTK_WINEXPORT BackfaceCullingFilter : public vtkPolyDataAlgorithm
{

public:
  static BackfaceCullingFilter* New();
  vtkTypeMacro(BackfaceCullingFilter, vtkPolyDataAlgorithm);

  void SetCameraPosition(const vtkSmartPointer<vtkMatrix4x4>& campos);

  // in vtk5, this should be a protected method, that gets called via Update().
  // in vtk6 this no longer happens. so as a quickfix, expose it to callers.
  virtual void Execute();


protected:
  BackfaceCullingFilter();
  virtual ~BackfaceCullingFilter();

protected:
  vtkSmartPointer<vtkMatrix4x4>     m_CameraPosition;


private:
  BackfaceCullingFilter(const BackfaceCullingFilter&);  // Not implemented.
  void operator=(const BackfaceCullingFilter&);  // Not implemented.
};


} // namespace

#endif // niftkVTKBackfaceCullingFilter_h