vtkCellCenterDepthSort.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkCellCenterDepthSort.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.
 
=========================================================================*/
 
/*
 * Copyright 2003 Sandia Corporation.
 * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
 * license for use of this work by or on behalf of the
 * U.S. Government. Redistribution and use in source and binary forms, with
 * or without modification, are permitted provided that this Notice and any
 * statement of authorship are reproduced on all copies.
 */
 
#ifndef vtkCellCenterDepthSort_h
#define vtkCellCenterDepthSort_h
 
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkVisibilitySort.h"
 
class vtkFloatArray;
 
class vtkCellCenterDepthSortStack;
 
class VTKRENDERINGCORE_EXPORT vtkCellCenterDepthSort : public vtkVisibilitySort
{
public:
  vtkTypeMacro(vtkCellCenterDepthSort, vtkVisibilitySort);
  virtual void PrintSelf(ostream &os, vtkIndent indent);
  static vtkCellCenterDepthSort *New();
 
  virtual void InitTraversal();
  virtual vtkIdTypeArray *GetNextCells();
 
protected:
  vtkCellCenterDepthSort();
  virtual ~vtkCellCenterDepthSort();
 
  vtkIdTypeArray *SortedCells;
  vtkIdTypeArray *SortedCellPartition;
 
  vtkFloatArray *CellCenters;
  vtkFloatArray *CellDepths;
  vtkFloatArray *CellPartitionDepths;
 
  virtual float *ComputeProjectionVector();
  virtual void ComputeCellCenters();
  virtual void ComputeDepths();
 
private:
  vtkCellCenterDepthSortStack *ToSort;
 
  vtkCellCenterDepthSort(const vtkCellCenterDepthSort &);  // Not implemented.
  void operator=(const vtkCellCenterDepthSort &);  // Not implemented.
};
 
#endif