vtkFrustumCoverageCuller.h

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

  Program:   Visualization Toolkit
  Module:    vtkFrustumCoverageCuller.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkFrustumCoverageCuller_h
#define vtkFrustumCoverageCuller_h

#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkCuller.h"

#define VTK_CULLER_SORT_NONE          0
#define VTK_CULLER_SORT_FRONT_TO_BACK 1
#define VTK_CULLER_SORT_BACK_TO_FRONT 2

class vtkProp;
class vtkRenderer;

class VTKRENDERINGCORE_EXPORT vtkFrustumCoverageCuller : public vtkCuller
{
public:
  static vtkFrustumCoverageCuller *New();
  vtkTypeMacro(vtkFrustumCoverageCuller,vtkCuller);
  void PrintSelf(ostream& os,vtkIndent indent);


  vtkSetMacro( MinimumCoverage, double );
  vtkGetMacro( MinimumCoverage, double );


  vtkSetMacro( MaximumCoverage, double );
  vtkGetMacro( MaximumCoverage, double );


  vtkSetClampMacro( SortingStyle, int,
        VTK_CULLER_SORT_NONE, VTK_CULLER_SORT_BACK_TO_FRONT );
  vtkGetMacro(SortingStyle,int);
  void SetSortingStyleToNone()
        {this->SetSortingStyle(VTK_CULLER_SORT_NONE);};
  void SetSortingStyleToBackToFront()
    {this->SetSortingStyle(VTK_CULLER_SORT_BACK_TO_FRONT);};
  void SetSortingStyleToFrontToBack()
    {this->SetSortingStyle(VTK_CULLER_SORT_FRONT_TO_BACK);};
  const char *GetSortingStyleAsString(void);

//BTX

  double Cull( vtkRenderer *ren, vtkProp **propList,
              int& listLength, int& initialized );
//ETX

protected:
  vtkFrustumCoverageCuller();
  ~vtkFrustumCoverageCuller() {}

  double       MinimumCoverage;
  double       MaximumCoverage;
  int          SortingStyle;
private:
  vtkFrustumCoverageCuller(const vtkFrustumCoverageCuller&);  // Not implemented.
  void operator=(const vtkFrustumCoverageCuller&);  // Not implemented.
};


#endif