vtkPointOccupancyFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkPointOccupancyFilter.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 vtkPointOccupancyFilter_h
#define vtkPointOccupancyFilter_h

#include "vtkFiltersPointsModule.h" // For export macro
#include "vtkImageAlgorithm.h"

class VTKFILTERSPOINTS_EXPORT vtkPointOccupancyFilter : public vtkImageAlgorithm
{
public:

  static vtkPointOccupancyFilter *New();
  vtkTypeMacro(vtkPointOccupancyFilter,vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetSampleDimensions(int i, int j, int k);
  void SetSampleDimensions(int dim[3]);
  vtkGetVectorMacro(SampleDimensions,int,3);


  vtkSetVector6Macro(ModelBounds,double);
  vtkGetVectorMacro(ModelBounds,double,6);


  vtkSetMacro(EmptyValue,unsigned char);
  vtkGetMacro(EmptyValue,unsigned char);
  vtkSetMacro(OccupiedValue,unsigned char);
  vtkGetMacro(OccupiedValue,unsigned char);

protected:
  vtkPointOccupancyFilter();
  ~vtkPointOccupancyFilter() override;

  int SampleDimensions[3]; // dimensions of volume over which to compute occupancy
  double ModelBounds[6]; // bounding box defining image
  double Origin[3], Spacing[3]; // output geometry
  unsigned char EmptyValue; // what value indicates a voxel is empty
  unsigned char OccupiedValue; // what value indicates a voxel is occupied

  int FillInputPortInformation(int port, vtkInformation* info) override;
  int RequestInformation (vtkInformation *,
                          vtkInformationVector **,
                          vtkInformationVector *) override;
  int RequestData(vtkInformation *,
                  vtkInformationVector **,
                  vtkInformationVector *) override;

  void ComputeModelBounds(vtkDataSet *input, vtkImageData *output,
                          vtkInformation *outInfo);

private:
  vtkPointOccupancyFilter(const vtkPointOccupancyFilter&) = delete;
  void operator=(const vtkPointOccupancyFilter&) = delete;
};

#endif